:root {
  --bg-image: url('/assets/images/lightbackground.webp?v=0.6.19');
  --window-bg: rgba(255, 255, 255, .40);
  --sidebar-bg: rgba(255, 255, 255, .60);
  --card-bg: rgba(255, 255, 255, .50);
  --card-soft: rgba(255, 255, 255, .28);
  --input-bg: rgba(255, 255, 255, .50);
  --input-focus-bg: rgba(255, 255, 255, .72);
  --text-color: #2c3e50;
  --muted-color: rgba(44, 62, 80, .68);
  --accent-color: #0052d4;
  --btn-bg: #0052d4;
  --btn-text: #ffffff;
  --border-color: rgba(0, 82, 212, .18);
  --glass-border: rgba(255, 255, 255, .38);
  --shadow: 0 20px 50px rgba(0, 33, 79, .13);
  --success: #238b57;
  --warning: #9a6500;
  --danger: #c93d50;
  --scrollbar-thumb: rgba(0, 0, 0, .28);
  --scrollbar-track: transparent;
  --radius-xl: 30px;
  --radius-lg: 25px;
  --radius-md: 18px;
}

html[data-theme="dark"] {
  --bg-image: url('/assets/images/darkbackground.webp?v=0.6.19');
  --window-bg: rgba(0, 0, 0, .30);
  --sidebar-bg: rgba(0, 0, 0, .50);
  --card-bg: rgba(255, 255, 255, .10);
  --card-soft: rgba(255, 255, 255, .065);
  --input-bg: rgba(255, 255, 255, .10);
  --input-focus-bg: rgba(255, 255, 255, .14);
  --text-color: #ffffff;
  --muted-color: rgba(255, 255, 255, .64);
  --accent-color: #ffffff;
  --btn-bg: #ffffff;
  --btn-text: #0052d4;
  --border-color: rgba(255, 255, 255, .18);
  --glass-border: rgba(255, 255, 255, .22);
  --shadow: 0 24px 60px rgba(0, 0, 0, .32);
  --success: #74d7a2;
  --warning: #ffd17c;
  --danger: #ff8ea0;
  --scrollbar-thumb: rgba(255, 255, 255, .28);
}

* { box-sizing: border-box; }
html { min-height: 100%; background: #05080d; }
body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--bg-image) center center / cover fixed no-repeat;
  color: var(--text-color);
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  transition: background .5s ease, color .3s ease;
  overflow-x: hidden;
}

button, input, select, textarea { font: inherit; }
button { color: inherit; }
a { color: inherit; }
.hidden { display: none !important; }
.mobile-only { display: none !important; }
.muted { color: var(--muted-color); }
.tiny { font-size: .79rem; }
.view { min-width: 0; }

.global-theme,
.app-menu-float {
  position: fixed;
  top: 20px;
  z-index: 1200;
}
.global-theme { right: 20px; }
.app-menu-float { left: 92px; }
.theme-switch {
  cursor: pointer;
  min-width: 44px;
  min-height: 42px;
  padding: 9px 14px;
  border-radius: 50px;
  border: 1px solid var(--glass-border);
  color: var(--text-color);
  background: var(--window-bg);
  backdrop-filter: blur(12px) saturate(135%);
  -webkit-backdrop-filter: blur(12px) saturate(135%);
  box-shadow: 0 8px 26px rgba(0,0,0,.10);
  transition: transform .2s ease, background .3s ease;
}
.theme-switch:hover { transform: translateY(-2px); }

/* Login */
.login-wrap {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 78px 18px 28px;
}
.window,
.glass {
  background: var(--window-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px) brightness(108%);
  -webkit-backdrop-filter: blur(20px) brightness(108%);
  box-shadow: var(--shadow);
  color: var(--text-color);
}
.login-card {
  width: min(420px, 100%);
  padding: 40px;
  border-radius: 30px;
  text-align: center;
}
.brand-mark {
  width: 58px;
  height: 58px;
  margin: 0 auto 16px;
  border-radius: 17px;
  display: grid;
  place-items: center;
  background: var(--btn-bg);
  color: var(--btn-text);
  font-size: 1.3rem;
  font-weight: 900;
  box-shadow: 0 12px 26px rgba(0,82,212,.18);
}
.brand-mark.small {
  width: 46px;
  height: 46px;
  min-width: 46px;
  margin: 0;
  border-radius: 14px;
  font-size: 1.05rem;
}
.eyebrow {
  margin: 0 0 .4rem;
  color: var(--accent-color);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.login-card h1 { margin: 0; font-size: 2rem; }
.login-subtitle { margin: .55rem 0 1.4rem; line-height: 1.55; }

.stack { display: grid; gap: 12px; }
label { display: grid; gap: 7px; text-align: start; font-weight: 650; font-size: .9rem; }
input,
select,
textarea {
  width: 100%;
  min-height: 46px;
  padding: 11px 13px;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--input-bg);
  color: var(--text-color);
  outline: none;
  transition: background .2s ease, border-color .2s ease, box-shadow .2s ease;
}
textarea { min-height: 110px; resize: vertical; }
input::placeholder,
textarea::placeholder { color: var(--text-color); opacity: .48; }
input:focus,
select:focus,
textarea:focus {
  background: var(--input-focus-bg);
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(0,82,212,.10), 0 0 16px rgba(0,82,212,.10);
}
select option { color: #111; background: #fff; }
.form-error { min-height: 1.15rem; margin: 4px 0 0; color: var(--danger); font-size: .86rem; }

.btn {
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 750;
  cursor: pointer;
  transition: transform .2s ease, opacity .2s ease, background .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.btn.primary { background: var(--btn-bg); color: var(--btn-text); box-shadow: 0 8px 20px rgba(0,82,212,.10); }
.btn.ghost { background: var(--card-soft); color: var(--text-color); border-color: var(--border-color); }
.btn.danger { background: rgba(201,61,80,.14); color: var(--danger); border-color: rgba(201,61,80,.28); }
.icon-btn {
  width: 40px;
  height: 40px;
  padding: 0;
  display: grid;
  place-items: center;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--card-soft);
  cursor: pointer;
  font-size: 1.2rem;
}

/* App shell */
.app-shell { min-height: 100vh; }
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 260px;
  height: 100vh;
  z-index: 1000;
  padding: 28px 0 20px;
  display: flex;
  flex-direction: column;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--glass-border);
  backdrop-filter: blur(15px) saturate(125%);
  -webkit-backdrop-filter: blur(15px) saturate(125%);
  box-shadow: 14px 0 40px rgba(0,0,0,.07);
  transition: width .28s ease, transform .28s ease, background .3s ease;
}
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px 18px;
}
.sidebar-brand-text {
  min-width: 0;
  display: grid;
  gap: 2px;
}
.sidebar-brand-text strong { font-size: 1.12rem; }
.sidebar-brand-text .tiny { max-width: 150px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.user-chip {
  margin: 0 20px 18px;
  padding: 13px;
  display: flex;
  align-items: center;
  gap: 11px;
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  background: var(--card-bg);
}
.avatar {
  width: 42px;
  height: 42px;
  min-width: 42px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  background: var(--btn-bg);
  color: var(--btn-text);
  font-weight: 850;
  font-size: .82rem;
}
.user-chip-text { min-width: 0; display: grid; gap: 2px; }
.user-chip-text strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .87rem; }

.nav {
  flex: 1;
  overflow-y: auto;
  padding: 2px 0 18px;
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}
.nav::-webkit-scrollbar { width: 6px; }
.nav::-webkit-scrollbar-track { background: var(--scrollbar-track); }
.nav::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 20px; }
.nav-btn {
  width: calc(100% - 30px);
  min-height: 46px;
  margin: 5px 15px;
  padding: 11px 18px;
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: var(--text-color);
  text-align: left;
  font-weight: 650;
  opacity: .78;
  cursor: pointer;
  transition: .22s ease;
}
.nav-btn:hover,
.nav-btn.active {
  background: rgba(255,255,255,.20);
  border-color: rgba(255,255,255,.16);
  opacity: 1;
  font-weight: 800;
}
html[data-theme="light"] .nav-btn:hover,
html[data-theme="light"] .nav-btn.active { background: rgba(255,255,255,.46); }
.sidebar-bottom { padding-top: 8px; }
.danger-text { color: var(--danger); }

.content {
  min-height: 100vh;
  margin-left: 260px;
  padding: 40px;
  transition: margin-left .28s ease, padding .28s ease;
}

.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 18px;
  margin: 0 0 24px;
  padding-right: 64px;
}
.page-head h1 { margin: 0; font-size: clamp(1.75rem, 3vw, 2.45rem); line-height: 1.15; }
.page-head p { margin: 7px 0 0; line-height: 1.55; }
.actions-row { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.actions-row.compact { gap: 6px; }
.actions-row.compact .btn { min-height: 36px; padding: 0 10px; border-radius: 11px; font-size: .78rem; }

.card,
.panel,
.table-card,
.callout,
.preflight-summary,
.security-subsection {
  background: var(--window-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-color);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
}
.panel,
.table-card {
  padding: 24px;
  border-radius: 25px;
  margin-bottom: 20px;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 15px;
}
.panel-head > div:first-child { min-width: 0; }
.panel h2,
.panel h3,
.table-card h2,
.table-card h3 { margin-top: 0; }
.section-spacer { margin-top: 18px; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 14px;
  margin-bottom: 22px;
}
.stat-card {
  min-height: 118px;
  padding: 17px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  background: var(--card-bg);
  transition: transform .22s ease, border-color .22s ease, background .22s ease;
}
.stat-card:hover { border-color: var(--accent-color); }
.stat-card span { color: var(--muted-color); font-size: .82rem; }
.stat-card strong { font-size: 1.7rem; line-height: 1; color: var(--text-color); }
.stat-accent { color: var(--accent-color) !important; }
.kpi-note { margin-top: 8px; color: var(--muted-color); font-size: .78rem; }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; }
.empty { padding: 30px 18px; text-align: center; color: var(--muted-color); }
.callout { padding: 15px 17px; border-radius: 16px; line-height: 1.55; }
.callout.success { background: rgba(35,139,87,.12); border-color: rgba(35,139,87,.28); }
.callout.warn { background: rgba(215,145,18,.11); border-color: rgba(215,145,18,.25); }

/* Tables and forms */
.table-scroll { width: 100%; overflow: auto; border-radius: 15px; }
table { width: 100%; border-collapse: collapse; color: var(--text-color); }
th, td { padding: 12px 11px; border-bottom: 1px solid var(--border-color); text-align: left; white-space: nowrap; }
th { font-size: .78rem; color: var(--muted-color); font-weight: 800; }
tbody tr { transition: background .18s ease; }
tbody tr:hover { background: rgba(255,255,255,.07); }
.badge { display: inline-flex; align-items: center; padding: 5px 9px; border-radius: 999px; font-size: .74rem; font-weight: 800; border: 1px solid var(--border-color); background: var(--card-soft); }
.badge.success { color: var(--success); border-color: rgba(35,139,87,.30); background: rgba(35,139,87,.10); }
.badge.warning { color: var(--warning); border-color: rgba(215,145,18,.30); background: rgba(215,145,18,.10); }
.badge.danger { color: var(--danger); border-color: rgba(201,61,80,.30); background: rgba(201,61,80,.10); }
.badge.info { color: var(--accent-color); }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }
.inline-form { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 10px; align-items: end; }
.file-input { padding: 12px; min-height: auto; }
.help { font-size: .8rem; color: var(--muted-color); line-height: 1.55; }
.toolbar { display: flex; gap: 10px; align-items: end; justify-content: space-between; flex-wrap: wrap; margin-bottom: 12px; }
.toolbar .search-box { width: min(420px, 100%); }
.checkbox-row { display: flex; align-items: center; gap: 10px; min-height: 48px; padding: 0 12px; border: 1px solid var(--border-color); border-radius: 14px; background: var(--card-soft); }
.checkbox-row input { width: 18px; min-height: auto; margin: 0; }
.editor-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.editor-grid .full { grid-column: 1 / -1; }

/* Student preference page */
.preference-wrap { max-width: 920px; margin: 0 auto; }
.student-summary { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin-bottom: 18px; }
.preference-list { display: grid; gap: 11px; }
.preference-item {
  display: grid;
  grid-template-columns: 46px 46px minmax(0,1fr) auto;
  align-items: center;
  gap: 11px;
  min-height: 76px;
  padding: 13px 15px;
  border-radius: 20px;
  border: 1px solid var(--glass-border);
  background: var(--card-bg);
  transition: transform .22s ease, border-color .22s ease, background .22s ease, box-shadow .22s ease;
}
.preference-item:hover { border-color: var(--accent-color); box-shadow: 0 12px 25px rgba(0,0,0,.08); }
.preference-item.dragging { opacity: .74; transform: scale(1.015); border-color: var(--accent-color); }
.rank-pill,
.drag-handle {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 13px;
}
.rank-pill { background: var(--btn-bg); color: var(--btn-text); font-weight: 900; }
.drag-handle { border: 1px solid var(--border-color); background: var(--card-soft); color: var(--accent-color); cursor: grab; user-select: none; touch-action: none; }
.drag-handle:active { cursor: grabbing; }
.stage-name { font-weight: 800; font-size: .98rem; }
.stage-hospital { margin-top: 4px; color: var(--muted-color); font-size: .82rem; }
.move-actions { display: flex; gap: 6px; }
.move-actions button { width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--border-color); background: var(--card-soft); color: var(--text-color); cursor: pointer; }
.sticky-submit {
  position: sticky;
  bottom: 14px;
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

/* Progress and charts */
.progress-native,
.bar-progress { width: 100%; height: 9px; appearance: none; -webkit-appearance: none; border: 0; background: transparent; }
.progress-native::-webkit-progress-bar,
.bar-progress::-webkit-progress-bar { background: var(--card-soft); border-radius: 999px; }
.progress-native::-webkit-progress-value,
.bar-progress::-webkit-progress-value { background: var(--btn-bg); border-radius: 999px; }
.progress-native::-moz-progress-bar,
.bar-progress::-moz-progress-bar { background: var(--btn-bg); border-radius: 999px; }
.bar-list { display: grid; gap: 11px; }
.bar-row { display: grid; grid-template-columns: minmax(120px,1fr) 2fr auto; gap: 10px; align-items: center; }
.bar-track { height: 9px; border-radius: 999px; background: var(--card-soft); overflow: hidden; }
.bar-fill { height: 100%; border-radius: inherit; background: var(--btn-bg); }
.progress-shell { display: grid; gap: 7px; }
.progress-bar { height: 9px; border-radius: 999px; overflow: hidden; background: var(--card-soft); }

.preflight-summary { display:flex; justify-content:space-between; gap:12px; align-items:center; padding:14px 16px; border-radius:16px; margin:14px 0; }
.preflight-summary.ready { border-color:rgba(35,139,87,.28); background:rgba(35,139,87,.10); }
.preflight-summary.blocked { border-color:rgba(201,61,80,.26); background:rgba(201,61,80,.08); }
.preflight-summary > span { text-align:right; }
.check-list { display:grid; gap:8px; margin:0 0 14px; }
.check-row { display:grid; grid-template-columns:34px minmax(0,1fr) auto; gap:10px; align-items:center; padding:11px 12px; border-radius:14px; border:1px solid var(--border-color); background:var(--card-soft); }
.check-icon { width:30px; height:30px; display:grid; place-items:center; border-radius:10px; font-weight:900; background:var(--card-soft); }
.check-row.ok .check-icon { color:var(--success); }
.check-row.warning .check-icon { color:var(--warning); }
.check-row.fail .check-icon { color:var(--danger); }
.check-value { font-size:.86rem; white-space:nowrap; }

.security-subsection { margin-top:4px; padding:14px; border-radius:16px; display:flex; align-items:center; justify-content:space-between; gap:12px; }
.security-subsection p { margin:.3rem 0 0; line-height:1.45; }
.secret-box { display:grid; gap:7px; padding:13px; border-radius:14px; background:var(--card-soft); border:1px solid var(--border-color); }
.secret-box code { user-select:all; word-break:break-all; font-size:1rem; letter-spacing:.08em; color:var(--text-color); }
.setup-link { display:flex; align-items:center; justify-content:center; text-decoration:none; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); display: inline-block; margin-right: 6px; }
.status-dot.off { background: var(--danger); }
.audit-meta { max-width: 440px; white-space: normal; word-break: break-word; color: var(--muted-color); font-size: .8rem; }

/* Dialogs */
.dialog-card {
  width: min(520px, calc(100vw - 28px));
  padding: 24px;
  border-radius: 26px;
}
.dialog-card.compact { width: min(440px, calc(100vw - 28px)); }
dialog { border: 1px solid var(--glass-border); }
dialog::backdrop { background: rgba(0,0,0,.58); backdrop-filter: blur(7px); -webkit-backdrop-filter: blur(7px); }
.dialog-head { display: flex; align-items: start; justify-content: space-between; gap: 12px; }
.dialog-head h2 { margin: 0; }

/* Feedback */
.toast-region {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%);
  z-index: 99999;
  display: grid;
  gap: 8px;
  width: min(94vw, 520px);
  pointer-events: none;
}
.toast {
  justify-self: center;
  min-width: min(300px, 92vw);
  max-width: 100%;
  padding: 14px 20px;
  border-radius: 18px;
  background: rgba(4,6,10,.78);
  color: #fff;
  border: 1px solid rgba(255,255,255,.13);
  box-shadow: 0 14px 42px rgba(0,0,0,.36), inset 0 1px 0 rgba(255,255,255,.09);
  backdrop-filter: blur(24px) saturate(155%);
  -webkit-backdrop-filter: blur(24px) saturate(155%);
  text-align: center;
  font-weight: 700;
  animation: islandIn .34s cubic-bezier(.16,1,.3,1);
}
.toast.error { border-color: rgba(255,142,160,.32); }
@keyframes islandIn { from { opacity:0; transform: translateY(-10px) scale(.88); } to { opacity:1; transform:none; } }

.turnstile-wrap { min-height: 66px; display: grid; align-items: center; justify-items: start; overflow: hidden; }

@media (max-width: 1100px) {
  .stats-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .grid-2 { grid-template-columns: 1fr; }
  .inline-form { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

/* Tablet: keep readable navigation labels instead of an icon-only rail. */
@media (max-width: 992px) {
  .sidebar { width: 220px; }
  .sidebar-brand { padding-left: 17px; padding-right: 17px; }
  .user-chip { margin-left: 14px; margin-right: 14px; }
  .nav-btn { width: calc(100% - 24px); margin: 5px 12px; padding: 11px 14px; }
  .content { margin-left: 220px; padding: 34px 24px; }
}

@media (max-width: 760px) {
  body { background-attachment: scroll; }
  .mobile-only { display: block !important; }
  .sidebar {
    width: min(82vw, 280px);
    transform: translateX(-102%);
    box-shadow: 18px 0 48px rgba(0,0,0,.22);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar,
  .card,
  .panel,
  .table-card,
  .callout,
  .theme-switch,
  .sticky-submit {
    backdrop-filter: blur(8px) saturate(112%);
    -webkit-backdrop-filter: blur(8px) saturate(112%);
  }
  .content { margin-left: 0; padding: 72px 15px 40px; }
  .global-theme { top: 10px; right: 10px; }
  .page-head { align-items: flex-start; flex-direction: column; margin-top: 34px; padding-right: 0; }
  .stats-grid { gap: 9px; }
  .stat-card { min-height: 100px; padding: 13px; }
  .panel, .table-card { padding: 17px 14px; border-radius: 20px; }
  .student-summary { grid-template-columns: 1fr 1fr; }
  .student-summary .card:first-child { grid-column: 1 / -1; }
  .preference-item { grid-template-columns: 38px 40px minmax(0,1fr); padding: 11px; }
  .move-actions { grid-column: 3; justify-self: end; }
  .sticky-submit { bottom: 9px; align-items: stretch; flex-direction: column; }
  .sticky-submit .btn { width: 100%; }
  .inline-form,
  .form-grid,
  .editor-grid { grid-template-columns: 1fr; }
  .form-grid .full,
  .editor-grid .full { grid-column: auto; }
  .toolbar { align-items: stretch; }
  .toolbar .search-box { width: 100%; }
  .bar-row { grid-template-columns: 1fr auto; }
  .bar-row .bar-track { grid-column: 1 / -1; grid-row: 2; }
  .preflight-summary { align-items:flex-start; flex-direction:column; }
  .preflight-summary > span { text-align:left; }
  .check-row { grid-template-columns:34px minmax(0,1fr); }
  .check-value { grid-column:2; }
}

@media (max-width: 576px) {
  .login-wrap { padding: 66px 10px 18px; }
  .login-card { padding: 30px 20px; }
  .login-card h1 { font-size: 1.65rem; }
  .content { padding-left: 12px; padding-right: 12px; }
  .brand-mark.small { width: 40px; height: 40px; min-width: 40px; }
  .avatar { width: 38px; height: 38px; min-width: 38px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-card strong { font-size: 1.45rem; }
  .security-subsection { align-items:stretch; flex-direction:column; }
  th, td { padding: 10px 8px; font-size: .82rem; }
}

@media (max-width: 380px) {
  .content { padding-left: 10px; padding-right: 10px; }
  .login-card { padding: 25px 15px; }
  .stat-card { min-height: 92px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* Students — 50/page, filters, password reveal */
.student-list-toolbar {
  align-items: end;
  gap: 14px;
}
.student-filter-grid {
  flex: 1 1 760px;
  display: grid;
  grid-template-columns: minmax(240px, 1.8fr) repeat(4, minmax(145px, 1fr));
  gap: 10px;
  align-items: end;
}
.student-filter-grid label { min-width: 0; }
.student-list-meta {
  min-width: 150px;
  display: grid;
  gap: 4px;
  justify-items: end;
  align-self: end;
  padding-bottom: 7px;
}
.student-list-counter { font-size: .92rem; color: var(--text-color); }
.student-page-size { font-size: .76rem; }
.pagination-host { margin: 14px 0 4px; }
.student-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 7px;
}
.student-pagination .btn {
  min-height: 38px;
  padding: 7px 11px;
  border-radius: 11px;
}
.pagination-page { min-width: 40px; }
.pagination-ellipsis {
  min-width: 22px;
  text-align: center;
  color: var(--muted-color);
  font-weight: 800;
}
.student-password-cell {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 155px;
}
.student-password-value {
  display: inline-block;
  min-width: 92px;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 7px 9px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--input-bg);
  color: var(--text-color);
  font-size: .8rem;
  letter-spacing: .03em;
  user-select: all;
}
.password-reveal-btn,
.password-copy-btn {
  min-height: 34px;
  padding: 6px 9px;
  font-size: .76rem;
}

@media (max-width: 1180px) {
  .student-filter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .student-filter-grid .search-box { grid-column: 1 / -1; width: 100%; }
  .student-list-meta { justify-items: start; padding-bottom: 0; }
}

@media (max-width: 680px) {
  .student-filter-grid { grid-template-columns: 1fr; }
  .student-filter-grid .search-box { grid-column: auto; }
  .student-list-meta { width: 100%; }
  .student-pagination { justify-content: space-between; }
  .pagination-page,
  .pagination-ellipsis { display: none; }
  .pagination-arrow { flex: 1 1 0; }
}

/* Password visibility controls */
.password-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}
.password-input-wrap > input {
  width: 100%;
  padding-right: 86px;
}
.password-visibility-toggle {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: color-mix(in srgb, var(--input-bg) 88%, transparent);
  color: var(--text-color);
  min-height: 34px;
  padding: 6px 10px;
  font: inherit;
  font-size: .76rem;
  font-weight: 800;
  cursor: pointer;
}
.password-visibility-toggle:hover { background: var(--input-focus-bg); }
.is-loading { opacity: .58; transition: opacity .16s ease; }

/* Mobile navigation — explicit app bar + real drawer. */
.mobile-appbar,
.mobile-drawer-head,
.mobile-nav-backdrop { display: none; }

@media (max-width: 760px) {
  body.mobile-nav-open { overflow: hidden; }

  .mobile-appbar.mobile-only {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1110;
    min-height: 62px;
    padding: calc(9px + env(safe-area-inset-top)) 66px 9px 10px;
    display: flex !important;
    align-items: center;
    gap: 12px;
    background: var(--window-bg);
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(16px) saturate(125%);
    -webkit-backdrop-filter: blur(16px) saturate(125%);
    box-shadow: 0 8px 28px rgba(0,0,0,.10);
  }

  .mobile-menu-button {
    min-height: 42px;
    padding: 8px 12px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border-radius: 13px;
    border: 1px solid var(--border-color);
    background: var(--card-soft);
    color: var(--text-color);
    font-weight: 800;
    cursor: pointer;
  }
  .mobile-menu-glyph { font-size: 1.22rem; line-height: 1; }
  .mobile-page-context {
    min-width: 0;
    display: grid;
    gap: 1px;
    line-height: 1.15;
  }
  .mobile-page-context > span {
    color: var(--muted-color);
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
  }
  .mobile-page-context > strong {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    font-size: .96rem;
  }

  .global-theme {
    top: calc(10px + env(safe-area-inset-top));
    right: 10px;
    z-index: 1210;
    min-width: 42px;
    width: 42px;
    height: 42px;
    padding: 0;
    display: grid;
    place-items: center;
    border-radius: 13px;
  }

  .mobile-nav-backdrop.mobile-only {
    position: fixed;
    inset: 0;
    z-index: 1140;
    display: block !important;
    background: rgba(0,0,0,.42);
    opacity: 0;
    pointer-events: none;
    transition: opacity .22s ease;
  }
  .mobile-nav-backdrop.visible {
    opacity: 1;
    pointer-events: auto;
  }

  .sidebar {
    z-index: 1150;
    width: min(88vw, 330px);
    padding: calc(12px + env(safe-area-inset-top)) 0 calc(14px + env(safe-area-inset-bottom));
    border-right: 1px solid var(--glass-border);
    box-shadow: 22px 0 54px rgba(0,0,0,.32);
  }

  .mobile-drawer-head.mobile-only {
    min-height: 48px;
    padding: 0 14px 10px 18px;
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 14px;
  }
  .mobile-drawer-head > div { display: grid; gap: 1px; }
  .mobile-drawer-head strong { font-size: 1rem; }
  .mobile-menu-close {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--card-soft);
    color: var(--text-color);
    font-size: 1.55rem;
    line-height: 1;
    cursor: pointer;
  }

  .sidebar-brand { padding: 0 18px 14px; }
  .user-chip { margin: 0 14px 14px; border-radius: 16px; }
  .nav { padding: 4px 0 12px; }
  .nav-btn {
    position: relative;
    width: calc(100% - 24px);
    min-height: 48px;
    margin: 3px 12px;
    padding: 12px 16px;
    border-radius: 13px;
    opacity: .84;
    font-size: .94rem;
  }
  .nav-btn.active {
    padding-left: 20px;
    background: var(--card-bg);
    border-color: var(--border-color);
    box-shadow: 0 8px 22px rgba(0,0,0,.08);
  }
  .nav-btn.active::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 13px;
    bottom: 13px;
    width: 3px;
    border-radius: 999px;
    background: var(--accent-color);
  }
  .sidebar-bottom {
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
  }

  .content { padding-top: calc(82px + env(safe-area-inset-top)); }
  .page-head { margin-top: 8px; }
}

/* ==========================================================================\n   v0.6.17 — Institutional interface\n   Flat, purposeful visual system for an internal university application.\n   ========================================================================== */
:root {
  --bg-image: none;
  --page-bg: #f3f5f7;
  --window-bg: #ffffff;
  --sidebar-bg: #ffffff;
  --card-bg: #ffffff;
  --card-soft: #f6f8fa;
  --input-bg: #ffffff;
  --input-focus-bg: #ffffff;
  --text-color: #18212b;
  --muted-color: #66727f;
  --accent-color: #1d5a85;
  --accent-soft: #eaf2f8;
  --btn-bg: #174f78;
  --btn-text: #ffffff;
  --border-color: #d8dee5;
  --glass-border: #d8dee5;
  --shadow: none;
  --success: #26734d;
  --warning: #8a6200;
  --danger: #a93543;
  --scrollbar-thumb: #a9b2bc;
  --scrollbar-track: transparent;
  --radius-xl: 10px;
  --radius-lg: 8px;
  --radius-md: 6px;
}

html[data-theme="dark"] {
  --bg-image: none;
  --page-bg: #101418;
  --window-bg: #171c21;
  --sidebar-bg: #14191e;
  --card-bg: #171c21;
  --card-soft: #1e252c;
  --input-bg: #11161b;
  --input-focus-bg: #11161b;
  --text-color: #e7ebef;
  --muted-color: #9da7b1;
  --accent-color: #76acd0;
  --accent-soft: #172c3a;
  --btn-bg: #dbe9f2;
  --btn-text: #153e59;
  --border-color: #2c343c;
  --glass-border: #2c343c;
  --success: #73c89b;
  --warning: #e0bd67;
  --danger: #e1818c;
  --scrollbar-thumb: #58636e;
}

html { background: var(--page-bg); }
body {
  background: var(--page-bg);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  transition: background .18s ease, color .18s ease;
}

/* No decorative glass / floating effects. */
.window,
.glass,
.sidebar,
.card,
.panel,
.table-card,
.callout,
.preflight-summary,
.security-subsection,
.theme-switch,
.sticky-submit,
.mobile-appbar.mobile-only {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  box-shadow: none !important;
}

.global-theme {
  top: 18px;
  right: 22px;
}
.theme-switch {
  min-width: 62px;
  min-height: 34px;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--window-bg);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .01em;
}
.theme-switch:hover { transform: none; background: var(--card-soft); }

/* Login: deliberately plain institutional sign-in, not a marketing card. */
.login-wrap {
  align-items: stretch;
  justify-content: stretch;
  padding: 0;
  background: var(--page-bg);
}
.login-wrap::before {
  content: '';
  width: clamp(260px, 34vw, 470px);
  min-height: 100vh;
  background: #173f5f;
  border-right: 1px solid color-mix(in srgb, #173f5f 80%, #fff 20%);
}
html[data-theme="dark"] .login-wrap::before { background: #0c2c42; border-color: #244052; }
.login-card {
  align-self: center;
  width: min(470px, calc(100vw - 42px));
  margin: 0 clamp(34px, 7vw, 110px);
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  text-align: left;
}
.login-identity {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 44px;
}
.identity-rule {
  display: block;
  width: 4px;
  height: 42px;
  flex: 0 0 4px;
  background: var(--accent-color);
}
.identity-rule.compact { height: 34px; }
.institution-name,
.application-name { margin: 0; }
.institution-name {
  color: var(--muted-color);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
}
.application-name {
  margin-top: 3px;
  color: var(--text-color);
  font-size: 1rem;
  font-weight: 700;
}
.login-card h1 {
  margin: 0;
  font-size: 2rem;
  font-weight: 650;
  letter-spacing: -.025em;
}
.login-subtitle { max-width: 390px; margin: 8px 0 28px; line-height: 1.55; }
.login-card .stack { gap: 16px; }
.login-card .btn.primary { margin-top: 2px; }

/* Forms: restrained, familiar control language. */
label { gap: 6px; font-weight: 600; font-size: .84rem; }
input,
select,
textarea {
  min-height: 42px;
  padding: 9px 11px;
  border-radius: 6px;
  background: var(--input-bg);
  transition: border-color .12s ease, box-shadow .12s ease, background .12s ease;
}
input:focus,
select:focus,
textarea:focus {
  background: var(--input-focus-bg);
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent-color) 18%, transparent);
}
.btn {
  min-height: 40px;
  padding: 8px 14px;
  border-radius: 6px;
  font-weight: 650;
  transition: background .12s ease, border-color .12s ease, opacity .12s ease;
}
.btn:hover { transform: none; }
.btn.primary { box-shadow: none; }
.btn.ghost { background: var(--window-bg); }
.btn.ghost:hover { background: var(--card-soft); }
.btn.danger { background: transparent; }
.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  background: transparent;
  font-size: 1.05rem;
}
.password-visibility-toggle {
  border-radius: 5px;
  background: var(--card-soft);
  font-weight: 650;
}

/* Sidebar: permanent institutional navigation, no floating card treatment. */
.sidebar {
  width: 252px;
  padding: 24px 0 16px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border-color);
}
.sidebar-brand {
  gap: 12px;
  padding: 0 20px 22px;
  border-bottom: 1px solid var(--border-color);
}
.sidebar-brand-text strong { font-size: .98rem; font-weight: 700; letter-spacing: -.01em; }
.sidebar-brand-text .tiny { max-width: 175px; }
.user-chip {
  margin: 16px 20px 10px;
  padding: 10px 0 14px;
  border: 0;
  border-bottom: 1px solid var(--border-color);
  border-radius: 0;
  background: transparent;
}
.avatar {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-color);
  font-size: .72rem;
}
.nav { padding: 8px 10px 14px; }
.nav-btn {
  width: 100%;
  min-height: 40px;
  margin: 2px 0;
  padding: 9px 12px;
  border-radius: 5px;
  opacity: 1;
  color: var(--muted-color);
  font-size: .86rem;
  font-weight: 600;
}
.nav-btn:hover { background: var(--card-soft); border-color: transparent; color: var(--text-color); font-weight: 600; }
.nav-btn.active {
  background: var(--accent-soft);
  border-color: transparent;
  color: var(--accent-color);
  font-weight: 700;
}
html[data-theme="light"] .nav-btn:hover,
html[data-theme="light"] .nav-btn.active { background: var(--accent-soft); }
.sidebar-bottom {
  padding: 10px 10px 0;
  border-top: 1px solid var(--border-color);
}
.sidebar-bottom .nav-btn { margin: 1px 0; }

.content {
  margin-left: 252px;
  padding: 36px clamp(26px, 4vw, 58px) 56px;
  max-width: 1680px;
}
.page-head {
  align-items: center;
  margin: 0 0 24px;
  padding: 0 70px 18px 0;
  border-bottom: 1px solid var(--border-color);
}
.page-head h1 {
  font-size: clamp(1.55rem, 2.3vw, 2.05rem);
  font-weight: 650;
  letter-spacing: -.025em;
}
.page-head p { margin-top: 5px; }
.page-heading-copy { min-width: 0; }
.eyebrow {
  color: var(--muted-color);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .065em;
}

/* Panels: paper-like sections instead of layered floating cards. */
.card,
.panel,
.table-card,
.callout,
.preflight-summary,
.security-subsection {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
}
.panel,
.table-card {
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 18px;
}
.panel-head { margin-bottom: 14px; }
.panel h2,
.panel h3,
.table-card h2,
.table-card h3 {
  font-weight: 650;
  letter-spacing: -.015em;
}

/* Dashboard summary is a report strip, not a gallery of KPI cards. */
.stats-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  margin-bottom: 22px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}
.stat-card {
  min-height: 86px;
  padding: 15px 16px;
  border: 0;
  border-right: 1px solid var(--border-color);
  border-radius: 0;
  background: transparent;
  justify-content: center;
  gap: 9px;
}
.stat-card:nth-child(5n) { border-right: 0; }
.stat-card:nth-child(n+6) { border-top: 1px solid var(--border-color); }
.stat-card:hover { border-color: var(--border-color); background: var(--card-soft); }
.stat-card span { font-size: .72rem; font-weight: 650; text-transform: uppercase; letter-spacing: .04em; }
.stat-card strong { font-size: 1.38rem; font-weight: 650; letter-spacing: -.02em; }
.stat-accent { display: none; }

.grid-2 { gap: 16px; }
.callout { border-radius: 6px; }
.empty { padding: 28px 16px; }

/* Tables should look like administrative records, not card content. */
.table-scroll {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--window-bg);
}
th, td { padding: 10px 11px; }
th {
  background: var(--card-soft);
  color: var(--muted-color);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .025em;
  text-transform: uppercase;
}
tbody tr:hover { background: var(--card-soft); }
.badge {
  padding: 4px 7px;
  border-radius: 4px;
  font-size: .7rem;
  font-weight: 700;
  background: transparent;
}
.checkbox-row { border-radius: 6px; background: var(--window-bg); }

/* Preference ranking reads as a ranked list, not module cards. */
.preference-wrap { max-width: 980px; margin: 0; }
.preference-list {
  gap: 0;
  border: 1px solid var(--border-color);
  border-radius: 7px;
  overflow: hidden;
  background: var(--card-bg);
}
.preference-item {
  min-height: 66px;
  padding: 10px 13px;
  border: 0;
  border-bottom: 1px solid var(--border-color);
  border-radius: 0;
  background: transparent;
  transition: background .12s ease;
}
.preference-item:last-child { border-bottom: 0; }
.preference-item:hover { border-color: transparent; box-shadow: none; background: var(--card-soft); }
.preference-item.dragging { transform: none; border-color: transparent; background: var(--accent-soft); }
.rank-pill,
.drag-handle { width: 36px; height: 36px; border-radius: 5px; }
.rank-pill { background: var(--accent-soft); color: var(--accent-color); font-weight: 750; }
.drag-handle { background: transparent; color: var(--muted-color); }
.move-actions button { width: 32px; height: 32px; border-radius: 5px; background: transparent; }
.sticky-submit {
  bottom: 10px;
  border-radius: 7px;
  background: var(--window-bg);
  border: 1px solid var(--border-color);
}

/* Status / checks: compact operational language. */
.preflight-summary { border-radius: 6px; }
.check-list {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  gap: 0;
}
.check-row {
  border: 0;
  border-bottom: 1px solid var(--border-color);
  border-radius: 0;
  background: var(--window-bg);
}
.check-row:last-child { border-bottom: 0; }
.check-icon { border-radius: 4px; background: var(--card-soft); }
.security-subsection,
.secret-box { border-radius: 6px; }

/* Dialogs / feedback: utilitarian rather than floating glass surfaces. */
.dialog-card { padding: 22px; border-radius: 8px; }
dialog { border-color: var(--border-color); }
dialog::backdrop { background: rgba(10, 14, 18, .55); backdrop-filter: none; -webkit-backdrop-filter: none; }
.toast-region { top: max(14px, env(safe-area-inset-top)); }
.toast {
  min-width: min(280px, 90vw);
  padding: 10px 14px;
  border-radius: 6px;
  background: #20262c;
  border: 1px solid #39424b;
  box-shadow: 0 8px 18px rgba(0,0,0,.18);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  text-align: left;
  font-size: .84rem;
  font-weight: 600;
  animation: none;
}

.student-password-value,
.student-pagination .btn { border-radius: 5px; }

/* Tablet */
@media (max-width: 1100px) {
  .stats-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .stat-card:nth-child(5n) { border-right: 1px solid var(--border-color); }
  .stat-card:nth-child(3n) { border-right: 0; }
  .stat-card:nth-child(n+4) { border-top: 1px solid var(--border-color); }
}

@media (max-width: 992px) {
  .sidebar { width: 220px; }
  .content { margin-left: 220px; padding: 32px 24px 48px; }
}

/* Mobile: standard app header + solid drawer. */
@media (max-width: 760px) {
  .login-wrap { display: block; padding: 0; }
  .login-wrap::before {
    display: block;
    width: 100%;
    min-height: 8px;
    height: 8px;
    background: #173f5f;
    border: 0;
  }
  .login-card {
    width: auto;
    margin: 0;
    padding: 56px 22px 28px;
  }
  .login-identity { margin-bottom: 38px; }

  .mobile-appbar.mobile-only {
    min-height: 58px;
    padding: calc(8px + env(safe-area-inset-top)) 72px 8px 10px;
    background: var(--window-bg);
    border-bottom: 1px solid var(--border-color);
  }
  .mobile-menu-button {
    min-height: 38px;
    padding: 7px 10px;
    border-radius: 5px;
    background: transparent;
    font-weight: 650;
  }
  .mobile-page-context > span { display: none; }
  .mobile-page-context > strong { font-size: .9rem; font-weight: 650; }
  .global-theme {
    top: calc(10px + env(safe-area-inset-top));
    right: 10px;
    z-index: 1210;
    width: auto;
    min-width: 54px;
    height: 34px;
    padding: 0 8px;
    border-radius: 5px;
  }
  .mobile-nav-backdrop.mobile-only { background: rgba(10,14,18,.5); }
  .sidebar {
    width: min(86vw, 314px);
    padding: calc(10px + env(safe-area-inset-top)) 0 calc(12px + env(safe-area-inset-bottom));
    box-shadow: 10px 0 24px rgba(0,0,0,.18) !important;
  }
  .mobile-drawer-head.mobile-only {
    border-bottom-color: var(--border-color);
    margin-bottom: 4px;
  }
  .mobile-menu-close {
    width: 36px;
    height: 36px;
    border-radius: 5px;
    background: transparent;
  }
  .sidebar-brand { padding: 14px 18px 16px; }
  .user-chip { margin: 8px 18px 8px; border-radius: 0; }
  .nav { padding: 6px 10px 10px; }
  .nav-btn {
    min-height: 42px;
    margin: 1px 0;
    padding: 9px 12px;
    border-radius: 5px;
    font-size: .9rem;
  }
  .nav-btn.active { padding-left: 12px; box-shadow: none; }
  .nav-btn.active::before { display: none; }
  .content { padding: calc(78px + env(safe-area-inset-top)) 12px 38px; }
  .page-head {
    margin-top: 0;
    padding: 0 0 15px;
    align-items: flex-start;
    flex-direction: column;
  }
  .page-head h1 { font-size: 1.45rem; }
  .panel, .table-card { padding: 15px 12px; border-radius: 7px; }
  .stats-grid { grid-template-columns: 1fr 1fr; border-radius: 7px; }
  .stat-card { min-height: 78px; padding: 12px; }
  .stat-card:nth-child(n) { border-right: 1px solid var(--border-color); border-top: 0; }
  .stat-card:nth-child(even) { border-right: 0; }
  .stat-card:nth-child(n+3) { border-top: 1px solid var(--border-color); }
  .stat-card strong { font-size: 1.22rem; }
  .preference-item { grid-template-columns: 34px 34px minmax(0,1fr); }
}

@media (max-width: 420px) {
  .login-card { padding-left: 17px; padding-right: 17px; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat-card:nth-child(n) { border-right: 0; border-top: 1px solid var(--border-color); }
  .stat-card:first-child { border-top: 0; }
}

/* v0.6.19 — restore background + glass only; layout/dimensions stay unchanged. */
:root {
  --bg-image: url('/assets/images/lightbackground.webp?v=0.6.19');
  --page-bg: rgba(238, 244, 250, .18);
  --window-bg: rgba(255, 255, 255, .46);
  --sidebar-bg: rgba(255, 255, 255, .58);
  --card-bg: rgba(255, 255, 255, .48);
  --card-soft: rgba(255, 255, 255, .32);
  --input-bg: rgba(255, 255, 255, .52);
  --input-focus-bg: rgba(255, 255, 255, .72);
  --border-color: rgba(255, 255, 255, .48);
  --glass-border: rgba(255, 255, 255, .52);
  --shadow: 0 18px 48px rgba(10, 38, 72, .15);
}

html[data-theme="dark"] {
  --bg-image: url('/assets/images/darkbackground.webp?v=0.6.19');
  --page-bg: rgba(5, 10, 16, .18);
  --window-bg: rgba(9, 14, 21, .48);
  --sidebar-bg: rgba(7, 12, 18, .62);
  --card-bg: rgba(12, 18, 27, .48);
  --card-soft: rgba(255, 255, 255, .075);
  --input-bg: rgba(12, 18, 27, .58);
  --input-focus-bg: rgba(17, 25, 36, .72);
  --border-color: rgba(255, 255, 255, .16);
  --glass-border: rgba(255, 255, 255, .19);
  --shadow: 0 20px 54px rgba(0, 0, 0, .32);
}

html {
  background: #05080d var(--bg-image) center center / cover fixed no-repeat;
}

body,
.login-wrap {
  background: var(--bg-image) center center / cover fixed no-repeat;
}

.window,
.glass,
.sidebar,
.card,
.panel,
.table-card,
.callout,
.preflight-summary,
.security-subsection,
.theme-switch,
.sticky-submit,
.mobile-appbar.mobile-only,
.table-scroll,
.preference-list,
.check-list,
.check-row,
.checkbox-row,
.dialog-card {
  backdrop-filter: blur(18px) saturate(128%) !important;
  -webkit-backdrop-filter: blur(18px) saturate(128%) !important;
  box-shadow: var(--shadow) !important;
}

.sidebar {
  background: var(--sidebar-bg);
  border-color: var(--glass-border);
}

.card,
.panel,
.table-card,
.callout,
.preflight-summary,
.security-subsection,
.preference-list,
.check-list,
.check-row,
.checkbox-row,
.table-scroll,
.sticky-submit,
.mobile-appbar.mobile-only,
.dialog-card {
  background: var(--card-bg);
  border-color: var(--glass-border);
}

.theme-switch,
.btn.ghost {
  background: var(--window-bg);
  border-color: var(--glass-border);
}

input,
select,
textarea {
  background: var(--input-bg);
  border-color: var(--glass-border);
}

input:focus,
select:focus,
textarea:focus {
  background: var(--input-focus-bg);
}

/* Keep the institutional login geometry, but let the selected background show through. */
.login-wrap::before {
  background: rgba(20, 63, 96, .62);
  border-color: var(--glass-border);
  backdrop-filter: blur(10px) saturate(115%);
  -webkit-backdrop-filter: blur(10px) saturate(115%);
}
html[data-theme="dark"] .login-wrap::before {
  background: rgba(7, 35, 54, .70);
  border-color: var(--glass-border);
}
.login-card {
  background: var(--window-bg);
  border-color: var(--glass-border);
  backdrop-filter: blur(20px) saturate(130%);
  -webkit-backdrop-filter: blur(20px) saturate(130%);
  box-shadow: var(--shadow);
}

/* Preserve table geometry while allowing the background to remain visible. */
th { background: var(--card-soft); }
tbody tr:hover { background: var(--card-soft); }

@media (max-width: 760px) {
  .mobile-nav-backdrop.mobile-only {
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
  }
}

/* ==========================================================================\n   v0.6.20 — Dedicated phone interface\n   Mobile-only shell; desktop geometry and behavior remain unchanged.\n   ========================================================================== */
@media (max-width: 760px) {
  :root {
    --mobile-bar-height: 62px;
    --mobile-dock-height: 68px;
    --mobile-gutter: 12px;
  }

  html, body { min-height: 100%; }
  body {
    padding-bottom: calc(var(--mobile-dock-height) + 18px + env(safe-area-inset-bottom));
    background-position: center top;
  }
  body.mobile-nav-open { overflow: hidden; }

  /* Login becomes a native-feeling glass sheet over the selected background. */
  .login-wrap {
    min-height: 100dvh;
    display: flex;
    align-items: flex-end;
    padding: calc(92px + env(safe-area-inset-top)) 10px calc(10px + env(safe-area-inset-bottom));
    background: var(--bg-image) center center / cover no-repeat;
  }
  .login-wrap::before { display: none !important; }
  .login-card {
    width: 100%;
    max-width: 520px;
    margin: 0 auto;
    padding: 26px 20px calc(24px + env(safe-area-inset-bottom));
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    text-align: left;
    background: var(--window-bg);
    backdrop-filter: blur(24px) saturate(135%) !important;
    -webkit-backdrop-filter: blur(24px) saturate(135%) !important;
    box-shadow: 0 22px 60px rgba(0,0,0,.22) !important;
  }
  .login-identity { margin-bottom: 28px; }
  .login-card h1 { font-size: 1.75rem; }
  .login-subtitle { margin-bottom: 22px; }
  .login-card input { min-height: 50px; }
  .login-card .btn.primary { min-height: 50px; width: 100%; }

  /* Compact top context bar. Menu lives in the bottom dock on phones. */
  .mobile-appbar.mobile-only {
    display: flex !important;
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1200;
    min-height: calc(var(--mobile-bar-height) + env(safe-area-inset-top));
    padding: calc(9px + env(safe-area-inset-top)) 78px 8px 16px;
    align-items: center;
    gap: 10px;
    background: var(--window-bg);
    border: 0;
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(22px) saturate(135%) !important;
    -webkit-backdrop-filter: blur(22px) saturate(135%) !important;
    box-shadow: 0 8px 30px rgba(0,0,0,.10) !important;
  }
  .mobile-menu-button { display: none !important; }
  .mobile-page-context {
    min-width: 0;
    display: grid;
    gap: 2px;
  }
  .mobile-page-context > strong {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: .98rem;
    line-height: 1.15;
    font-weight: 750;
  }
  .mobile-page-context > span.mobile-session-label {
    display: block;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--muted-color);
    font-size: .69rem;
    font-weight: 600;
  }
  .global-theme {
    top: calc(12px + env(safe-area-inset-top));
    right: 12px;
    z-index: 1220;
    min-width: 58px;
    height: 36px;
    min-height: 36px;
    padding: 0 9px;
    border-radius: 12px;
    font-size: .7rem;
    box-shadow: none !important;
  }

  /* Thumb-first bottom navigation. */
  .mobile-bottom-nav.mobile-only {
    display: flex !important;
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: calc(8px + env(safe-area-inset-bottom));
    z-index: 1240;
    height: var(--mobile-dock-height);
    padding: 6px;
    align-items: stretch;
    gap: 2px;
    border: 1px solid var(--glass-border);
    border-radius: 21px;
    background: color-mix(in srgb, var(--window-bg) 92%, transparent);
    backdrop-filter: blur(26px) saturate(145%) !important;
    -webkit-backdrop-filter: blur(26px) saturate(145%) !important;
    box-shadow: 0 14px 42px rgba(0,0,0,.22) !important;
  }
  .mobile-tab {
    flex: 1 1 0;
    min-width: 0;
    padding: 5px 3px 4px;
    border: 0;
    border-radius: 15px;
    background: transparent;
    color: var(--muted-color);
    display: grid;
    place-items: center;
    align-content: center;
    gap: 3px;
    font-size: .61rem;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
  }
  .mobile-tab-icon { width: 22px; height: 22px; display: block; }
  .mobile-tab > span {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .mobile-tab.active {
    color: var(--accent-color);
    background: var(--card-soft);
  }
  .mobile-tab:active { transform: scale(.96); }

  /* "Plus" opens a bottom sheet rather than a desktop-style side rail. */
  .mobile-nav-backdrop.mobile-only {
    display: block !important;
    position: fixed;
    inset: 0;
    z-index: 1260;
    opacity: 0;
    pointer-events: none;
    background: rgba(4, 8, 12, .44);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: opacity .18s ease;
  }
  .mobile-nav-backdrop.visible { opacity: 1; pointer-events: auto; }
  .sidebar {
    inset: auto 8px calc(var(--mobile-dock-height) + 18px + env(safe-area-inset-bottom)) 8px;
    z-index: 1280;
    width: auto;
    height: auto;
    max-height: min(72dvh, 610px);
    padding: 0 0 calc(10px + env(safe-area-inset-bottom));
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    overflow: auto;
    transform: translateY(calc(100% + 110px));
    background: color-mix(in srgb, var(--sidebar-bg) 94%, transparent);
    box-shadow: 0 24px 70px rgba(0,0,0,.30) !important;
    transition: transform .22s cubic-bezier(.2,.8,.2,1);
  }
  .sidebar.open { transform: translateY(0); }
  .mobile-drawer-head.mobile-only {
    display: flex !important;
    position: sticky;
    top: 0;
    z-index: 2;
    min-height: 58px;
    padding: 12px 14px;
    align-items: center;
    justify-content: space-between;
    background: color-mix(in srgb, var(--sidebar-bg) 94%, transparent);
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(18px) saturate(130%);
    -webkit-backdrop-filter: blur(18px) saturate(130%);
  }
  .mobile-drawer-head > div { display: grid; gap: 1px; }
  .mobile-drawer-head strong { font-size: .96rem; }
  .mobile-menu-close {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    background: var(--card-soft);
  }
  .sidebar-brand { padding: 13px 16px 8px; border-bottom: 0; }
  .sidebar-brand .identity-rule { height: 30px; }
  .user-chip {
    margin: 6px 14px 10px;
    padding: 10px;
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    background: var(--card-soft);
  }
  .nav {
    padding: 4px 12px 12px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }
  .nav-btn {
    width: 100%;
    min-height: 52px;
    margin: 0;
    padding: 10px 12px;
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    background: var(--card-soft);
    text-align: left;
    font-size: .82rem;
  }
  .nav-btn.active {
    padding-left: 12px;
    color: var(--text-color);
    background: color-mix(in srgb, var(--card-soft) 65%, var(--accent-color) 12%);
    border-color: color-mix(in srgb, var(--accent-color) 32%, var(--glass-border));
  }
  .nav-btn.active::before { display: none; }
  .sidebar-bottom {
    position: static;
    padding: 10px 12px 2px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    border-top: 1px solid var(--glass-border);
  }
  .sidebar-bottom .nav-btn { text-align: center; }

  /* Main content is sized for thumb reach and the two fixed bars. */
  .content {
    margin-left: 0;
    padding: calc(var(--mobile-bar-height) + 18px + env(safe-area-inset-top)) var(--mobile-gutter)
      calc(var(--mobile-dock-height) + 32px + env(safe-area-inset-bottom));
  }
  .page-head {
    margin: 0 2px 14px;
    padding: 0;
    gap: 6px;
  }
  .page-head h1 { font-size: 1.42rem; line-height: 1.15; }
  .page-head p { margin-top: 4px; font-size: .84rem; line-height: 1.45; }

  /* KPI rows swipe naturally instead of becoming a cramped desktop grid. */
  .stats-grid {
    display: flex;
    gap: 9px;
    margin: 0 -2px 14px;
    padding: 2px 2px 6px;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
    border: 0;
    border-radius: 0;
    background: transparent;
  }
  .stats-grid::-webkit-scrollbar { display: none; }
  .stat-card,
  .stats-grid .stat-card:nth-child(n) {
    flex: 0 0 148px;
    min-height: 88px;
    padding: 12px;
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    scroll-snap-align: start;
    background: var(--card-bg);
  }
  .stat-card strong { font-size: 1.3rem; }
  .student-summary {
    grid-template-columns: repeat(3, minmax(118px, 1fr));
    overflow-x: auto;
    gap: 8px;
    padding-bottom: 5px;
    scrollbar-width: none;
  }
  .student-summary::-webkit-scrollbar { display: none; }
  .student-summary .card:first-child { grid-column: auto; }

  .grid-2 { gap: 11px; }
  .panel,
  .table-card,
  .callout,
  .preflight-summary,
  .security-subsection {
    padding: 14px;
    border-radius: 17px;
  }
  .section-spacer { margin-top: 12px; }
  h2 { font-size: 1.08rem; }

  /* Forms and controls are finger-sized. */
  input, select, textarea { min-height: 48px; font-size: 16px; }
  .btn { min-height: 46px; border-radius: 13px; }
  .toolbar,
  .student-list-toolbar { gap: 9px; }
  .toolbar > *,
  .student-list-toolbar > * { max-width: 100%; }
  .student-filter-grid { gap: 8px; }
  .student-list-meta { align-items: start; }
  .actions-row:not(.compact) { width: 100%; }
  .actions-row:not(.compact) .btn { flex: 1 1 auto; }

  /* Long desktop tables become readable data cards. */
  .table-card {
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }
  .table-card .table-scroll { overflow: visible; background: transparent; border: 0; box-shadow: none !important; }
  .table-card table,
  .table-card tbody { display: block; width: 100%; }
  .table-card thead { display: none; }
  .table-card tbody { display: grid; gap: 10px; }
  .table-card tbody tr {
    display: block;
    min-width: 0;
    padding: 5px 12px;
    border: 1px solid var(--glass-border);
    border-radius: 17px;
    background: var(--card-bg);
    backdrop-filter: blur(18px) saturate(128%);
    -webkit-backdrop-filter: blur(18px) saturate(128%);
    box-shadow: 0 10px 28px rgba(0,0,0,.10);
  }
  .table-card tbody td {
    display: flex;
    width: 100%;
    min-width: 0;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    padding: 9px 0;
    border: 0;
    border-bottom: 1px solid var(--border-color);
    text-align: right;
    overflow-wrap: anywhere;
  }
  .table-card tbody td:last-child { border-bottom: 0; }
  .table-card tbody td::before {
    content: attr(data-label);
    flex: 0 0 38%;
    max-width: 145px;
    color: var(--muted-color);
    text-align: left;
    font-size: .68rem;
    line-height: 1.35;
    font-weight: 750;
    letter-spacing: .025em;
    text-transform: uppercase;
  }
  .table-card tbody td[data-label="Actions"] { display: block; text-align: left; }
  .table-card tbody td[data-label="Actions"]::before { display: block; max-width: none; margin-bottom: 8px; }
  .table-card .actions-row.compact {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 7px;
  }
  .table-card .actions-row.compact .btn { width: 100%; min-height: 42px; }
  .student-password-cell { min-width: 0; max-width: 100%; flex-wrap: wrap; justify-content: flex-end; }
  .student-password-value { min-width: 0; max-width: 150px; }

  /* Preference ranking becomes a tactile reorder list. */
  .preference-list {
    gap: 9px;
    border: 0;
    border-radius: 0;
    overflow: visible;
    background: transparent;
  }
  .preference-item {
    min-height: 72px;
    padding: 10px;
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    background: var(--card-bg);
  }
  .preference-item:last-child { border-bottom: 1px solid var(--glass-border); }
  .rank-pill,
  .drag-handle { width: 40px; height: 40px; border-radius: 12px; }
  .move-actions button { width: 38px; height: 38px; border-radius: 11px; }
  .sticky-submit {
    bottom: calc(var(--mobile-dock-height) + 20px + env(safe-area-inset-bottom));
    margin: 10px 0 0;
    padding: 10px;
    border-radius: 17px;
    box-shadow: 0 12px 34px rgba(0,0,0,.18) !important;
  }

  /* Dialogs use a bottom sheet presentation on phones. */
  dialog.dialog-card {
    width: 100%;
    max-width: none;
    max-height: 88dvh;
    margin: auto 0 0;
    padding: 20px 16px calc(18px + env(safe-area-inset-bottom));
    border-radius: 23px 23px 0 0;
    overflow: auto;
  }
  dialog.dialog-card.compact { max-width: none; }
  dialog::backdrop {
    background: rgba(3,7,11,.48);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
  }
  .editor-grid { gap: 10px; }
  .dialog-head { position: sticky; top: 0; z-index: 1; padding-bottom: 8px; background: transparent; }

  .student-pagination { gap: 8px; }
  .student-pagination .pagination-arrow { min-height: 44px; }
  .toast-region {
    top: calc(var(--mobile-bar-height) + 10px + env(safe-area-inset-top));
    left: 10px;
    right: 10px;
    transform: none;
    width: auto;
  }
  .toast { min-width: 0; width: 100%; max-width: none; border-radius: 15px; }
}

@media (max-width: 390px) {
  .mobile-bottom-nav.mobile-only { left: 7px; right: 7px; }
  .mobile-tab { font-size: .57rem; }
  .mobile-tab-icon { width: 20px; height: 20px; }
  .content { --mobile-gutter: 10px; }
  .table-card tbody td::before { flex-basis: 35%; }
}

/* ==========================================================================\n   v0.6.21 — Phone-first interface\n   A separate mobile shell: collapsible full-screen navigation + app surfaces.\n   Desktop rules remain untouched.\n   ========================================================================== */
@media (max-width: 760px) {
  :root {
    --phone-header-h: 64px;
    --phone-gutter: 12px;
  }

  body {
    padding-bottom: calc(20px + env(safe-area-inset-bottom));
    overscroll-behavior-y: none;
  }

  /* The previous permanent dock is intentionally removed on phones. */
  .mobile-bottom-nav.mobile-only { display: none !important; }

  /* Dedicated mobile app bar. */
  .mobile-appbar.mobile-only {
    display: flex !important;
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1240;
    min-height: calc(var(--phone-header-h) + env(safe-area-inset-top));
    padding: calc(8px + env(safe-area-inset-top)) 76px 8px 10px;
    align-items: center;
    gap: 10px;
    border: 0;
    border-bottom: 1px solid var(--glass-border);
    background: color-mix(in srgb, var(--window-bg) 90%, transparent);
    backdrop-filter: blur(24px) saturate(140%) !important;
    -webkit-backdrop-filter: blur(24px) saturate(140%) !important;
    box-shadow: 0 8px 28px rgba(0,0,0,.12) !important;
    transform: translateY(0);
    transition: transform .22s ease, opacity .22s ease;
    will-change: transform;
  }
  .mobile-menu-button {
    display: inline-flex !important;
    flex: 0 0 auto;
    min-width: 48px;
    height: 44px;
    padding: 0 10px;
    align-items: center;
    justify-content: center;
    gap: 0;
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    background: var(--card-soft);
    color: var(--text-color);
    font-size: 0;
    cursor: pointer;
  }
  .mobile-menu-glyph { font-size: 1.32rem; line-height: 1; }
  .mobile-page-context {
    min-width: 0;
    display: grid;
    gap: 1px;
  }
  .mobile-page-context > span:first-child { display: none; }
  .mobile-page-context > strong {
    font-size: 1rem;
    font-weight: 800;
    line-height: 1.18;
  }
  .mobile-page-context > span.mobile-session-label {
    display: block;
    max-width: min(58vw, 260px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--muted-color);
    font-size: .67rem;
    font-weight: 600;
  }
  .global-theme {
    top: calc(12px + env(safe-area-inset-top));
    right: 10px;
    z-index: 1250;
    height: 40px;
    min-height: 40px;
    min-width: 58px;
    padding: 0 8px;
    border-radius: 13px;
    transform: translateY(0);
    transition: transform .22s ease, opacity .22s ease;
  }

  /* Auto-hide chrome while the user reads; reveal again on upward scroll. */
  body.mobile-chrome-hidden:not(.mobile-nav-open) .mobile-appbar.mobile-only,
  body.mobile-chrome-hidden:not(.mobile-nav-open) .global-theme {
    transform: translateY(calc(-100% - env(safe-area-inset-top) - 12px));
    opacity: .15;
    pointer-events: none;
  }

  /* Full-screen mobile navigation. This is not the desktop sidebar resized. */
  .mobile-nav-backdrop.mobile-only {
    display: block !important;
    position: fixed;
    inset: 0;
    z-index: 1270;
    opacity: 0;
    pointer-events: none;
    background: rgba(3,7,11,.52);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transition: opacity .2s ease;
  }
  .mobile-nav-backdrop.visible { opacity: 1; pointer-events: auto; }
  .sidebar {
    position: fixed;
    inset: 0;
    z-index: 1280;
    width: 100%;
    height: 100dvh;
    max-height: none;
    padding: 0 0 calc(16px + env(safe-area-inset-bottom));
    overflow-y: auto;
    border: 0;
    border-radius: 0;
    background: color-mix(in srgb, var(--sidebar-bg) 91%, transparent);
    backdrop-filter: blur(30px) saturate(145%) !important;
    -webkit-backdrop-filter: blur(30px) saturate(145%) !important;
    box-shadow: none !important;
    transform: translateY(-102%);
    transition: transform .28s cubic-bezier(.2,.82,.2,1);
  }
  .sidebar.open { transform: translateY(0); }
  .mobile-drawer-head.mobile-only {
    display: flex !important;
    position: sticky;
    top: 0;
    z-index: 3;
    min-height: calc(68px + env(safe-area-inset-top));
    padding: calc(12px + env(safe-area-inset-top)) 14px 10px;
    align-items: center;
    justify-content: space-between;
    border: 0;
    border-bottom: 1px solid var(--glass-border);
    background: color-mix(in srgb, var(--sidebar-bg) 90%, transparent);
    backdrop-filter: blur(24px) saturate(140%);
    -webkit-backdrop-filter: blur(24px) saturate(140%);
  }
  .mobile-drawer-head .muted { font-size: .68rem; }
  .mobile-drawer-head strong { font-size: 1.16rem; }
  .mobile-menu-close {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    border: 1px solid var(--glass-border);
    background: var(--card-soft);
    font-size: 1.4rem;
  }
  .sidebar-brand {
    margin: 14px 14px 8px;
    padding: 12px 0 10px;
    border: 0;
  }
  .sidebar-brand .identity-rule { height: 38px; }
  .sidebar-brand-text strong { font-size: 1.12rem; }
  .user-chip {
    margin: 0 14px 16px;
    padding: 13px;
    border: 1px solid var(--glass-border);
    border-radius: 18px;
    background: var(--card-soft);
  }
  .avatar { width: 42px; height: 42px; }
  .nav {
    padding: 4px 14px 14px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .nav-btn {
    min-height: 54px;
    margin: 0;
    padding: 0 14px;
    border: 0;
    border-radius: 16px;
    background: transparent;
    text-align: left;
    font-size: .94rem;
    font-weight: 700;
  }
  .nav-btn.active {
    padding-left: 14px;
    color: var(--text-color);
    background: var(--card-soft);
    border: 1px solid var(--glass-border);
  }
  .nav-btn.active::before { display: none; }
  .sidebar-bottom {
    position: static;
    margin: 4px 14px 0;
    padding: 14px 0 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    border-top: 1px solid var(--glass-border);
  }
  .sidebar-bottom .nav-btn {
    min-height: 50px;
    text-align: center;
    border: 1px solid var(--glass-border);
    background: var(--card-soft);
  }

  /* Phone content shell. Page titles live in the app bar, not in desktop headers. */
  .content {
    width: 100%;
    margin-left: 0;
    padding: calc(var(--phone-header-h) + 14px + env(safe-area-inset-top)) var(--phone-gutter)
      calc(24px + env(safe-area-inset-bottom));
  }
  .view { width: 100%; min-width: 0; }
  .page-head {
    margin: 0 0 10px;
    padding: 0;
    display: block;
  }
  .page-head .page-heading-copy { display: none; }
  .page-head:has(> .page-heading-copy:only-child) { display: none; }
  .page-head > .actions-row,
  .page-head > select { width: 100%; }
  .page-head .actions-row { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 8px; }
  .page-head .actions-row select { min-width: 0; }

  /* App-like vertical sections instead of a compressed desktop dashboard. */
  .grid-2 {
    display: grid;
    grid-template-columns: 1fr !important;
    gap: 10px;
  }
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 8px;
    margin: 0 0 12px;
    padding: 0;
    overflow: visible;
    border: 0;
    background: transparent;
  }
  .stats-grid .stat-card:nth-child(n),
  .stat-card {
    min-width: 0;
    min-height: 82px;
    padding: 11px 12px;
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    background: color-mix(in srgb, var(--card-bg) 88%, transparent);
    backdrop-filter: blur(18px) saturate(130%);
    -webkit-backdrop-filter: blur(18px) saturate(130%);
    box-shadow: none !important;
  }
  .stat-card span { font-size: .68rem; }
  .stat-card strong { margin-top: 7px; font-size: 1.28rem; }
  .stat-accent { display: none; }

  .panel,
  .callout,
  .preflight-summary,
  .security-subsection {
    padding: 14px;
    border-radius: 18px;
    background: color-mix(in srgb, var(--card-bg) 86%, transparent);
  }
  .panel + .panel,
  .grid-2 + .panel,
  .section-spacer { margin-top: 10px; }
  .panel-head {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    margin-bottom: 12px;
  }
  .panel-head .btn { width: 100%; }
  h2 { font-size: 1.05rem; }
  .panel h2 + .muted,
  .panel h2 + p { line-height: 1.4; }

  /* Controls become a mobile control stack, not a desktop toolbar wrapping. */
  .toolbar,
  .student-list-toolbar {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    align-items: stretch;
  }
  .toolbar > *,
  .student-list-toolbar > *,
  .toolbar .search-box { width: 100%; max-width: none; }
  .actions-row:not(.compact) {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 8px;
  }
  .actions-row:not(.compact) .btn { width: 100%; }

  /* The mobile table treatment is retained, but presented as clean list records. */
  .table-card { padding: 0; border: 0; background: transparent; box-shadow: none !important; }
  .table-card tbody { gap: 9px; }
  .table-card tbody tr {
    padding: 4px 12px;
    border-radius: 17px;
    box-shadow: none !important;
    background: color-mix(in srgb, var(--card-bg) 88%, transparent);
  }
  .table-card tbody td { padding: 8px 0; }

  .student-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 7px;
    overflow: visible;
  }
  .student-summary .stat-card { min-height: 74px; }

  /* Preferences feel like a native sortable list. */
  .preference-wrap { max-width: none; }
  .preference-list { gap: 8px; }
  .preference-item {
    min-height: 68px;
    padding: 9px;
    border-radius: 17px;
    box-shadow: none;
  }
  .sticky-submit {
    position: sticky;
    bottom: calc(8px + env(safe-area-inset-bottom));
    margin-top: 10px;
    padding: 10px;
    border-radius: 18px;
  }

  /* Mobile dialogs are sheets. */
  dialog.dialog-card {
    width: 100%;
    max-width: none;
    max-height: 90dvh;
    margin: auto 0 0;
    border-radius: 24px 24px 0 0;
    padding: 20px 14px calc(18px + env(safe-area-inset-bottom));
  }

  .toast-region {
    top: calc(var(--phone-header-h) + 8px + env(safe-area-inset-top));
  }
  body.mobile-chrome-hidden .toast-region {
    top: calc(8px + env(safe-area-inset-top));
  }
}

@media (max-width: 380px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .actions-row:not(.compact) { grid-template-columns: 1fr; }
  .mobile-page-context > span.mobile-session-label { max-width: 50vw; }
}

/* ==========================================================================\n   v0.7.2 login visual refinement — desktop only\n   UI-only: roomier rounded glass sign-in card + milky light-side panel.\n   ========================================================================== */
@media (min-width: 761px) {
  /* Light mode: replace the large blue rail with a soft milky glass panel. */
  html[data-theme="light"] .login-wrap::before {
    background: rgba(243, 248, 251, .76);
    border-right-color: rgba(255, 255, 255, .72);
    backdrop-filter: blur(14px) saturate(112%);
    -webkit-backdrop-filter: blur(14px) saturate(112%);
  }

  /* Give the form breathing room and soften the rigid rectangular silhouette. */
  .login-card {
    width: min(550px, calc(100vw - 72px));
    margin: 0 clamp(36px, 6vw, 96px);
    padding: 34px 30px 32px;
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-sizing: border-box;
  }

  .login-identity { margin-bottom: 40px; }
  .login-subtitle { max-width: 430px; }
}


/* Result preference details */
.result-preference-list { display: grid; gap: 7px; margin-top: 10px; }
.result-preference-row {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-height: 50px;
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--card-soft);
}
.result-preference-row.is-allocated { border-color: var(--success); }
.result-preference-rank { font-weight: 800; text-align: center; }
.result-preference-service { display: grid; gap: 2px; min-width: 0; }
.result-preference-service strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (max-width: 760px) {
  .result-preference-row { grid-template-columns: 34px minmax(0, 1fr); }
  .result-preference-row > .badge { grid-column: 2; justify-self: start; }
}

/* ==========================================================================\n   Service popularity dashboard — faithful glass redesign\n   UI-only: mirrors the approved S1/S2 popularity mockup.\n   ========================================================================== */
.popularity-grid {
  align-items: stretch;
  gap: 12px !important;
  margin-top: 2px;
}

.popularity-card {
  --pop-accent: #4da8ff;
  --pop-accent-soft: #a8d8ff;
  --pop-surface: rgba(244, 249, 255, .68);
  --pop-surface-2: rgba(233, 243, 255, .62);
  --pop-row: rgba(255, 255, 255, .58);
  --pop-border: rgba(43, 111, 190, .40);
  --pop-border-soft: rgba(43, 111, 190, .17);
  --pop-track: rgba(45, 72, 104, .13);
  --pop-muted: rgba(37, 57, 80, .67);
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 735px;
  padding: 24px !important;
  margin-bottom: 20px;
  overflow: hidden;
  border-radius: 18px !important;
  border: 1px solid var(--pop-border) !important;
  background:
    linear-gradient(145deg, rgba(255,255,255,.62), rgba(231,242,255,.48)) !important;
  box-shadow:
    0 22px 58px rgba(4, 20, 42, .16),
    inset 0 1px 0 rgba(255,255,255,.62) !important;
  backdrop-filter: blur(24px) saturate(145%);
  -webkit-backdrop-filter: blur(24px) saturate(145%);
}

html[data-theme="dark"] .popularity-card {
  --pop-accent: #74bfff;
  --pop-accent-soft: #c6e7ff;
  --pop-surface: rgba(8, 24, 43, .72);
  --pop-surface-2: rgba(13, 31, 51, .66);
  --pop-row: rgba(17, 36, 58, .74);
  --pop-border: rgba(104, 169, 235, .57);
  --pop-border-soft: rgba(116, 184, 248, .18);
  --pop-track: rgba(130, 158, 191, .18);
  --pop-muted: rgba(199, 214, 232, .72);
  background:
    linear-gradient(145deg, rgba(12, 30, 51, .82), rgba(7, 19, 34, .76)) !important;
  box-shadow:
    0 22px 58px rgba(0, 0, 0, .34),
    inset 0 1px 0 rgba(188, 221, 255, .10) !important;
}

.popularity-card::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 92% 5%, rgba(75, 154, 255, .15), transparent 31%),
    radial-gradient(circle at 6% 100%, rgba(111, 176, 255, .07), transparent 35%);
}
.popularity-card > * { position: relative; z-index: 1; }

.popularity-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 20px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--pop-border-soft);
}
.popularity-identity {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  min-width: 0;
  flex: 1 1 auto;
}
.popularity-heading { min-width: 0; }
.popularity-heading h2 {
  margin: 3px 0 10px !important;
  max-width: 430px;
  color: var(--text-color);
  font-size: clamp(1.28rem, 1.8vw, 1.72rem);
  line-height: 1.13;
  letter-spacing: -.025em;
  font-weight: 790 !important;
}
.popularity-heading p {
  margin: 0;
  max-width: 500px;
  color: var(--pop-muted) !important;
  font-size: .82rem !important;
  line-height: 1.5;
}
.popularity-icon {
  flex: 0 0 56px;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 5px;
  padding: 13px 11px;
  border-radius: 14px;
  border: 1px solid rgba(88, 166, 244, .45);
  background: linear-gradient(145deg, rgba(85, 166, 255, .16), rgba(63, 122, 198, .08));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 8px 24px rgba(28, 107, 192, .13);
}
.popularity-icon i {
  display: block;
  width: 5px;
  border-radius: 999px;
  background: linear-gradient(180deg, #c9ebff, var(--pop-accent));
  box-shadow: 0 0 12px rgba(92, 183, 255, .36);
}
.popularity-icon i:nth-child(1) { height: 16px; }
.popularity-icon i:nth-child(2) { height: 28px; }
.popularity-icon i:nth-child(3) { height: 21px; }

.popularity-link {
  flex: 0 0 auto;
  width: 168px;
  min-height: 72px !important;
  padding: 10px 13px !important;
  display: grid !important;
  grid-template-columns: 34px minmax(0,1fr);
  align-items: center;
  gap: 10px;
  border-radius: 13px !important;
  border: 1px solid rgba(74, 156, 239, .58) !important;
  background: linear-gradient(145deg, rgba(72, 146, 228, .13), rgba(22, 68, 119, .09)) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.05);
  color: var(--text-color) !important;
  font-weight: 780 !important;
  line-height: 1.2;
  text-align: left;
}
.popularity-link:hover {
  transform: translateY(-1px) !important;
  border-color: rgba(97, 181, 255, .80) !important;
  background: linear-gradient(145deg, rgba(76, 162, 255, .20), rgba(32, 83, 142, .13)) !important;
}
.popularity-link-icon {
  width: 30px;
  height: 34px;
  display: grid;
  align-content: center;
  gap: 4px;
  padding: 7px 6px;
  border: 2px solid var(--pop-accent);
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(83, 173, 255, .16);
}
.popularity-link-icon i {
  height: 2px;
  border-radius: 999px;
  background: var(--pop-accent);
}
.popularity-link-icon i:nth-child(2) { width: 78%; }
.popularity-link-icon i:nth-child(3) { width: 58%; }
.popularity-link-text { display: block; }

.popularity-controls {
  display: grid;
  grid-template-columns: minmax(170px, 230px) minmax(0, 1fr);
  align-items: end;
  gap: 22px;
  margin: 0 6px 18px;
}
.popularity-select { width: 100%; min-width: 0; }
.popularity-select > span {
  display: block;
  margin-bottom: 8px;
  color: var(--text-color);
  font-size: .82rem;
  font-weight: 780;
}
.popularity-select select {
  width: 100%;
  min-height: 54px;
  padding-left: 16px;
  border-radius: 12px;
  border-color: rgba(112, 159, 211, .36);
  background: rgba(9, 22, 39, .12);
  font-weight: 750;
}
html[data-theme="dark"] .popularity-select select {
  background: rgba(7, 18, 32, .52);
  border-color: rgba(115, 169, 225, .40);
}
.popularity-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  min-height: 54px;
  padding: 0 !important;
  color: var(--pop-muted) !important;
  font-size: .88rem !important;
}
.popularity-summary::before,
.popularity-summary::after { content: none !important; }
.popularity-users-icon {
  position: relative;
  flex: 0 0 31px;
  width: 31px;
  height: 28px;
}
.popularity-users-icon::before,
.popularity-users-icon::after {
  content: '';
  position: absolute;
  border: 2px solid rgba(160, 190, 224, .72);
}
.popularity-users-icon::before {
  width: 8px;
  height: 8px;
  left: 4px;
  top: 1px;
  border-radius: 50%;
}
.popularity-users-icon::after {
  left: 0;
  top: 13px;
  width: 17px;
  height: 9px;
  border-bottom: 0;
  border-radius: 12px 12px 2px 2px;
}
.popularity-users-icon i:first-child::before,
.popularity-users-icon i:first-child::after {
  content: '';
  position: absolute;
  border: 2px solid rgba(160, 190, 224, .52);
}
.popularity-users-icon i:first-child::before {
  width: 7px; height: 7px; right: 3px; top: 4px; border-radius: 50%;
}
.popularity-users-icon i:first-child::after {
  width: 13px; height: 8px; right: 0; top: 15px; border-bottom: 0; border-radius: 10px 10px 2px 2px;
}
.popularity-summary-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.popularity-host {
  display: flex;
  flex: 1 1 auto;
  min-height: 0;
}
.popularity-table {
  width: 100%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--pop-border-soft);
  border-radius: 15px;
  background: rgba(7, 20, 36, .06);
}
html[data-theme="dark"] .popularity-table { background: rgba(6, 18, 32, .34); }
.popularity-table-head {
  display: grid;
  grid-template-columns: minmax(150px, .85fr) minmax(110px, 1.35fr) minmax(74px, auto);
  gap: 12px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--pop-border-soft);
  color: var(--pop-muted);
  font-size: .82rem;
  font-weight: 710;
}
.popularity-table-service-head { grid-column: 1; }
.popularity-table-value-head { grid-column: 2 / 4; text-align: right; padding-right: 4px; }
.popularity-list {
  display: grid;
  gap: 7px;
  padding: 8px;
  max-height: 548px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(102, 172, 239, .33) transparent;
}
.popularity-list::-webkit-scrollbar { width: 6px; }
.popularity-list::-webkit-scrollbar-track { background: transparent; }
.popularity-list::-webkit-scrollbar-thumb { border-radius: 999px; background: rgba(102, 172, 239, .33); }

.popularity-row {
  display: grid;
  grid-template-columns: minmax(150px, .85fr) minmax(100px, 1.35fr) minmax(74px, auto);
  gap: 12px;
  align-items: center;
  min-height: 48px;
  padding: 9px 12px 9px 16px;
  border: 1px solid var(--pop-border-soft);
  border-radius: 10px;
  background: var(--pop-row);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.025);
  transition: border-color .17s ease, background .17s ease, transform .17s ease;
}
.popularity-row:hover {
  border-color: rgba(91, 170, 244, .42);
  background: color-mix(in srgb, var(--pop-row) 88%, var(--pop-accent) 12%);
  transform: translateY(-1px);
}
.popularity-service {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-color);
  font-size: .84rem;
  font-weight: 560;
}
.popularity-meter { min-width: 0; }
.popularity-progress { display: block; width: 100%; height: 10px !important; }
.popularity-progress::-webkit-progress-bar { background: var(--pop-track) !important; border-radius: 999px; }
.popularity-progress::-webkit-progress-value {
  border-radius: 999px;
  background: linear-gradient(90deg, #7bc8ff, #c4e9ff) !important;
  box-shadow: 0 0 11px rgba(84, 180, 255, .24);
}
.popularity-progress::-moz-progress-bar {
  border-radius: 999px;
  background: linear-gradient(90deg, #7bc8ff, #c4e9ff) !important;
}
.popularity-value {
  min-width: 78px;
  text-align: right;
  white-space: nowrap;
  color: var(--text-color);
  font-size: .91rem;
  font-weight: 790;
  letter-spacing: -.01em;
}

.popularity-empty {
  flex: 1 1 auto;
  min-height: 420px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 34px;
  border: 1px solid var(--pop-border-soft);
  border-radius: 15px;
  text-align: center;
  color: var(--pop-muted);
  background:
    radial-gradient(circle at 50% 42%, rgba(98, 164, 232, .09), transparent 31%),
    rgba(7, 20, 36, .05);
}
html[data-theme="dark"] .popularity-empty {
  background:
    radial-gradient(circle at 50% 42%, rgba(98, 164, 232, .11), transparent 31%),
    rgba(6, 18, 32, .32);
}
.popularity-empty strong {
  max-width: 390px;
  color: var(--text-color);
  font-size: 1.08rem;
  line-height: 1.35;
  font-weight: 720;
}
.popularity-empty-icon {
  position: relative;
  width: 92px;
  height: 92px;
  display: grid;
  place-content: center;
  gap: 6px;
  padding-left: 7px;
  border-radius: 50%;
  border: 1px solid rgba(111, 170, 233, .25);
  background: rgba(102, 166, 235, .07);
  box-shadow: inset 0 0 34px rgba(92, 152, 217, .06);
}
.popularity-empty-icon::before {
  content: '';
  position: absolute;
  width: 29px;
  height: 39px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border: 3px solid rgba(168, 200, 238, .67);
  border-radius: 6px;
}
.popularity-empty-icon i {
  position: relative;
  z-index: 1;
  display: block;
  width: 17px;
  height: 3px;
  margin-left: 1px;
  border-radius: 999px;
  background: rgba(168, 200, 238, .68);
}
.popularity-empty-icon i:nth-child(2) { width: 13px; }
.popularity-empty-icon i:nth-child(3) { width: 9px; }

@media (max-width: 1250px) and (min-width: 761px) {
  .popularity-card { padding: 19px !important; min-height: 690px; }
  .popularity-head { gap: 13px; padding-bottom: 17px; }
  .popularity-identity { gap: 12px; }
  .popularity-icon { flex-basis: 48px; width: 48px; height: 48px; padding: 10px 9px; }
  .popularity-heading h2 { font-size: 1.26rem; max-width: 290px; }
  .popularity-heading p { font-size: .76rem !important; }
  .popularity-link { width: 146px; min-height: 62px !important; grid-template-columns: 27px minmax(0,1fr); gap: 8px; padding: 8px 10px !important; font-size: .79rem !important; }
  .popularity-link-icon { width: 25px; height: 29px; padding: 6px 5px; }
  .popularity-controls { grid-template-columns: minmax(138px, 190px) minmax(0,1fr); gap: 12px; margin-left: 2px; margin-right: 2px; }
  .popularity-select select { min-height: 49px; }
  .popularity-summary { min-height: 49px; font-size: .78rem !important; gap: 8px; }
  .popularity-table-head,
  .popularity-row { grid-template-columns: minmax(112px,.9fr) minmax(84px,1.25fr) minmax(68px,auto); gap: 8px; }
  .popularity-row { padding-left: 11px; }
  .popularity-service { font-size: .76rem; }
  .popularity-value { font-size: .82rem; min-width: 68px; }
}

@media (max-width: 760px) {
  .popularity-card {
    min-height: 0;
    padding: 15px !important;
    border-radius: 18px !important;
    margin-bottom: 0;
    box-shadow: 0 13px 32px rgba(0,0,0,.14) !important;
  }
  .popularity-head {
    display: grid !important;
    grid-template-columns: 1fr;
    gap: 13px;
    padding-bottom: 15px;
    margin-bottom: 15px;
  }
  .popularity-identity { gap: 11px; }
  .popularity-icon { flex-basis: 45px; width: 45px; height: 45px; border-radius: 12px; padding: 10px 9px; }
  .popularity-icon i { width: 4px; }
  .popularity-icon i:nth-child(1) { height: 12px; }
  .popularity-icon i:nth-child(2) { height: 22px; }
  .popularity-icon i:nth-child(3) { height: 17px; }
  .popularity-heading h2 { margin-top: 1px !important; font-size: 1.08rem; }
  .popularity-heading p { font-size: .72rem !important; }
  .popularity-link {
    width: 100%;
    min-height: 50px !important;
    grid-template-columns: 28px 1fr;
    justify-items: start;
  }
  .popularity-link-icon { width: 25px; height: 29px; padding: 6px 5px; }
  .popularity-controls { grid-template-columns: 1fr; gap: 8px; margin: 0 0 12px; }
  .popularity-summary { min-height: 36px; font-size: .78rem !important; }
  .popularity-table { border-radius: 13px; }
  .popularity-table-head { display: none; }
  .popularity-list { max-height: 515px; gap: 7px; padding: 7px; }
  .popularity-row {
    grid-template-columns: minmax(0,1fr) auto;
    grid-template-areas: 'service value' 'meter meter';
    gap: 8px 10px;
    min-height: 60px;
    padding: 10px 11px;
    border-radius: 11px;
  }
  .popularity-service { grid-area: service; font-size: .81rem; white-space: normal; line-height: 1.25; }
  .popularity-meter { grid-area: meter; }
  .popularity-value { grid-area: value; min-width: 0; font-size: .82rem; }
  .popularity-progress { height: 8px !important; }
  .popularity-empty { min-height: 270px; padding: 25px 16px; }
  .popularity-empty-icon { width: 74px; height: 74px; }
  .popularity-empty strong { font-size: .95rem; }
}

/* ==========================================================================\n   v0.7.8 — Popularité S1/S2: approved layout, keep existing app blur/background\n   ========================================================================== */
@media (min-width: 761px) {
  .popularity-grid {
    align-items: stretch;
    gap: 16px !important;
  }

  .popularity-card {
    /* Keep the site's accepted glass/background exactly in this component. */
    background: var(--card-bg) !important;
    border-color: var(--glass-border) !important;
    backdrop-filter: blur(18px) saturate(128%) !important;
    -webkit-backdrop-filter: blur(18px) saturate(128%) !important;
    box-shadow: var(--shadow) !important;

    min-height: 720px;
    padding: 20px !important;
    border-radius: 14px !important;
    overflow: hidden;
  }

  .popularity-card::before { display: none !important; }

  .popularity-head {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) 168px;
    align-items: start;
    gap: 18px;
    padding: 5px 2px 20px;
    margin: 0 0 18px;
    border-bottom: 1px solid color-mix(in srgb, var(--glass-border) 82%, transparent);
  }

  .popularity-identity {
    display: grid !important;
    grid-template-columns: 58px minmax(0, 1fr);
    align-items: start;
    gap: 18px;
    min-width: 0;
  }

  .popularity-icon {
    width: 58px;
    height: 58px;
    flex: none;
    display: flex !important;
    align-items: flex-end;
    justify-content: center;
    gap: 5px;
    padding: 13px 12px;
    border-radius: 13px;
    border: 1px solid rgba(94, 168, 238, .50);
    background: color-mix(in srgb, var(--card-soft) 78%, rgba(60, 142, 224, .18));
    box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 6px 18px rgba(17, 91, 165, .10);
  }
  .popularity-icon i {
    display: block !important;
    width: 5px;
    border-radius: 999px;
    background: linear-gradient(180deg, #d8f2ff 0%, #79c7ff 48%, #4ea7f2 100%);
    box-shadow: 0 0 8px rgba(108, 194, 255, .32);
  }
  .popularity-icon i:nth-child(1) { height: 17px; }
  .popularity-icon i:nth-child(2) { height: 29px; }
  .popularity-icon i:nth-child(3) { height: 22px; }

  .popularity-heading {
    min-width: 0;
    padding-top: 3px;
  }
  .popularity-title {
    margin: 0 0 10px !important;
    font-size: clamp(1.34rem, 1.8vw, 1.72rem) !important;
    line-height: 1.08 !important;
    letter-spacing: -.025em;
    font-weight: 800 !important;
  }
  .popularity-title-main,
  .popularity-title-semester {
    display: block;
  }
  .popularity-title-semester { margin-top: 6px; }
  .popularity-heading p {
    margin: 0 !important;
    max-width: 430px;
    font-size: .80rem !important;
    line-height: 1.5;
  }

  .popularity-link {
    width: 168px !important;
    min-height: 72px !important;
    padding: 10px 12px !important;
    display: grid !important;
    grid-template-columns: 31px minmax(0,1fr) !important;
    align-items: center !important;
    justify-items: start !important;
    gap: 10px !important;
    border-radius: 12px !important;
    border: 1px solid rgba(75, 157, 237, .62) !important;
    background: color-mix(in srgb, var(--card-soft) 76%, rgba(54, 139, 225, .16)) !important;
    color: var(--text-color) !important;
    font-size: .88rem !important;
    font-weight: 800 !important;
    line-height: 1.18 !important;
    text-align: left !important;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.05) !important;
  }
  .popularity-link-icon {
    width: 28px !important;
    height: 32px !important;
    display: grid !important;
    align-content: center;
    gap: 4px;
    padding: 6px 5px !important;
    border: 2px solid #64b5f8 !important;
    border-radius: 5px !important;
  }
  .popularity-link-icon i {
    display: block !important;
    height: 2px !important;
    border-radius: 99px;
    background: #64b5f8 !important;
  }
  .popularity-link-icon i:nth-child(2) { width: 78%; }
  .popularity-link-icon i:nth-child(3) { width: 58%; }

  .popularity-controls {
    display: grid !important;
    grid-template-columns: 222px minmax(0, 1fr) !important;
    align-items: end !important;
    gap: 26px !important;
    margin: 0 6px 18px !important;
  }
  .popularity-select > span {
    margin-bottom: 8px !important;
    font-size: .82rem !important;
    font-weight: 800 !important;
  }
  .popularity-select select {
    min-height: 54px !important;
    padding: 0 42px 0 16px !important;
    border-radius: 11px !important;
    font-weight: 760 !important;
  }
  .popularity-summary {
    min-height: 54px !important;
    display: flex !important;
    align-items: center !important;
    gap: 11px !important;
    padding: 0 !important;
    font-size: .87rem !important;
  }
  .popularity-users-icon {
    display: block !important;
    flex: 0 0 31px !important;
  }

  .popularity-host {
    min-height: 0;
  }
  .popularity-table {
    width: 100%;
    border-radius: 13px !important;
    border: 1px solid color-mix(in srgb, var(--glass-border) 62%, transparent) !important;
    background: color-mix(in srgb, var(--card-soft) 30%, transparent) !important;
    overflow: hidden;
  }
  .popularity-table-head {
    display: grid !important;
    grid-template-columns: minmax(145px, .9fr) minmax(110px, 1.35fr) 92px !important;
    gap: 12px !important;
    align-items: center;
    padding: 12px 18px !important;
    border-bottom: 1px solid color-mix(in srgb, var(--glass-border) 60%, transparent) !important;
    font-size: .81rem !important;
    font-weight: 650 !important;
  }
  .popularity-table-value-head {
    grid-column: 2 / 4 !important;
    text-align: right !important;
    padding-right: 8px !important;
  }

  .popularity-list {
    display: grid !important;
    gap: 7px !important;
    max-height: 530px !important;
    padding: 8px !important;
    overflow-y: auto !important;
  }
  .popularity-row {
    display: grid !important;
    grid-template-columns: minmax(145px, .9fr) minmax(110px, 1.35fr) 92px !important;
    gap: 12px !important;
    align-items: center !important;
    min-height: 44px !important;
    padding: 7px 12px 7px 16px !important;
    border: 1px solid color-mix(in srgb, var(--glass-border) 58%, transparent) !important;
    border-radius: 10px !important;
    background: color-mix(in srgb, var(--card-soft) 64%, transparent) !important;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.025) !important;
  }
  .popularity-service {
    font-size: .83rem !important;
    font-weight: 540 !important;
  }
  .popularity-progress {
    display: block !important;
    width: 100% !important;
    height: 10px !important;
  }
  .popularity-progress::-webkit-progress-bar {
    background: rgba(123, 148, 174, .18) !important;
    border-radius: 999px !important;
  }
  .popularity-progress::-webkit-progress-value {
    background: linear-gradient(90deg, #80ccff 0%, #c9ebff 100%) !important;
    border-radius: 999px !important;
    box-shadow: 0 0 9px rgba(100, 190, 255, .20) !important;
  }
  .popularity-progress::-moz-progress-bar {
    background: linear-gradient(90deg, #80ccff 0%, #c9ebff 100%) !important;
    border-radius: 999px !important;
  }
  .popularity-value {
    min-width: 92px !important;
    text-align: right !important;
    font-size: .88rem !important;
    font-weight: 800 !important;
  }

  .popularity-empty {
    min-height: 488px !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 18px !important;
    padding: 36px 24px !important;
    border: 1px solid color-mix(in srgb, var(--glass-border) 60%, transparent) !important;
    border-radius: 13px !important;
    background: color-mix(in srgb, var(--card-soft) 26%, transparent) !important;
  }
  .popularity-empty-icon {
    display: grid !important;
    width: 96px !important;
    height: 96px !important;
    border-radius: 50% !important;
    border: 1px solid rgba(123, 174, 228, .28) !important;
    background: color-mix(in srgb, var(--card-soft) 54%, rgba(80, 139, 205, .08)) !important;
  }
  .popularity-empty strong {
    max-width: 430px !important;
    font-size: 1.06rem !important;
    line-height: 1.35 !important;
    font-weight: 760 !important;
  }
}

@media (min-width: 761px) and (max-width: 1120px) {
  .popularity-card { padding: 17px !important; }
  .popularity-head { grid-template-columns: minmax(0, 1fr) 118px; gap: 10px; padding-bottom: 16px; }
  .popularity-identity { grid-template-columns: 44px minmax(0,1fr) !important; gap: 10px !important; }
  .popularity-icon {
    display: flex !important;
    width: 44px !important;
    height: 44px !important;
    padding: 9px 8px !important;
    border-radius: 11px !important;
  }
  .popularity-icon i { width: 4px !important; }
  .popularity-icon i:nth-child(1) { height: 13px !important; }
  .popularity-icon i:nth-child(2) { height: 22px !important; }
  .popularity-icon i:nth-child(3) { height: 17px !important; }
  .popularity-title { font-size: 1.10rem !important; margin-bottom: 7px !important; }
  .popularity-title-semester { margin-top: 3px !important; }
  .popularity-heading p { font-size: .69rem !important; line-height: 1.35 !important; }
  .popularity-link {
    width: 118px !important;
    min-height: 60px !important;
    grid-template-columns: 24px minmax(0,1fr) !important;
    gap: 7px !important;
    padding: 7px 8px !important;
    font-size: .72rem !important;
    text-align: left !important;
  }
  .popularity-link-icon {
    display: grid !important;
    width: 23px !important;
    height: 27px !important;
    padding: 5px 4px !important;
  }
  .popularity-controls { grid-template-columns: 110px minmax(0,1fr) !important; gap: 8px !important; margin-left: 0 !important; margin-right: 0 !important; }
  .popularity-select select { min-height: 44px !important; padding-left: 12px !important; }
  .popularity-summary { min-height: 44px !important; font-size: .72rem !important; gap: 6px !important; }
  .popularity-users-icon { display: block !important; transform: scale(.78); transform-origin: left center; margin-right: -5px; }
  .popularity-table-head,
  .popularity-row { grid-template-columns: minmax(112px,.95fr) minmax(78px,1.2fr) 76px !important; gap: 7px !important; }
  .popularity-row { padding-left: 10px !important; padding-right: 9px !important; }
  .popularity-service { font-size: .72rem !important; }
  .popularity-value { min-width: 76px !important; font-size: .76rem !important; }
}

@media (max-width: 760px) {
  .popularity-card {
    /* Preserve the same app blur/background on mobile too. */
    background: var(--card-bg) !important;
    border-color: var(--glass-border) !important;
    backdrop-filter: blur(18px) saturate(128%) !important;
    -webkit-backdrop-filter: blur(18px) saturate(128%) !important;
  }
  .popularity-card::before { display: none !important; }
  .popularity-title-main,
  .popularity-title-semester { display: inline; }
  .popularity-title-semester::before { content: ' '; }
}

/* ==========================================================================\n   v0.7.9 — Popularité: restore approved glass/background + compact header\n   UI-only. Keeps the pre-layout popularity blur/background and reduces the\n   title/action header footprint.\n   ========================================================================== */
@media (min-width: 761px) {
  .popularity-card {
    /* Restore the glass/background that was approved before the layout pass. */
    border-color: var(--pop-border) !important;
    background: linear-gradient(145deg, rgba(255,255,255,.62), rgba(231,242,255,.48)) !important;
    box-shadow:
      0 22px 58px rgba(4, 20, 42, .16),
      inset 0 1px 0 rgba(255,255,255,.62) !important;
    backdrop-filter: blur(24px) saturate(145%) !important;
    -webkit-backdrop-filter: blur(24px) saturate(145%) !important;
  }

  html[data-theme="dark"] .popularity-card {
    background: linear-gradient(145deg, rgba(12, 30, 51, .82), rgba(7, 19, 34, .76)) !important;
    box-shadow:
      0 22px 58px rgba(0, 0, 0, .34),
      inset 0 1px 0 rgba(188, 221, 255, .10) !important;
  }

  .popularity-card::before {
    display: block !important;
    background:
      radial-gradient(circle at 92% 5%, rgba(75, 154, 255, .15), transparent 31%),
      radial-gradient(circle at 6% 100%, rgba(111, 176, 255, .07), transparent 35%) !important;
  }

  /* Compact only the highlighted title/action area. */
  .popularity-head {
    grid-template-columns: minmax(0, 1fr) 142px !important;
    gap: 12px !important;
    padding: 2px 2px 14px !important;
    margin-bottom: 14px !important;
  }

  .popularity-identity {
    grid-template-columns: 46px minmax(0, 1fr) !important;
    gap: 12px !important;
  }

  .popularity-icon {
    width: 46px !important;
    height: 46px !important;
    flex-basis: 46px !important;
    padding: 10px 9px !important;
    gap: 4px !important;
    border-radius: 11px !important;
  }
  .popularity-icon i { width: 4px !important; }
  .popularity-icon i:nth-child(1) { height: 13px !important; }
  .popularity-icon i:nth-child(2) { height: 23px !important; }
  .popularity-icon i:nth-child(3) { height: 17px !important; }

  .popularity-heading { padding-top: 2px !important; }
  .popularity-title {
    margin: 0 !important;
    font-size: clamp(1.10rem, 1.42vw, 1.34rem) !important;
    line-height: 1.10 !important;
    letter-spacing: -.02em !important;
  }
  .popularity-title-semester { margin-top: 3px !important; }
  .popularity-heading p { display: none !important; }

  .popularity-link {
    width: 142px !important;
    min-height: 56px !important;
    padding: 8px 10px !important;
    grid-template-columns: 25px minmax(0,1fr) !important;
    gap: 8px !important;
    border-radius: 11px !important;
    font-size: .78rem !important;
    line-height: 1.13 !important;
  }

  .popularity-link-icon {
    width: 24px !important;
    height: 28px !important;
    padding: 5px 4px !important;
    border-width: 2px !important;
  }

  .popularity-controls { margin-top: 0 !important; }
}

@media (min-width: 761px) and (max-width: 1120px) {
  .popularity-head {
    grid-template-columns: minmax(0, 1fr) 120px !important;
    gap: 8px !important;
    padding-bottom: 12px !important;
  }
  .popularity-identity {
    grid-template-columns: 40px minmax(0,1fr) !important;
    gap: 9px !important;
  }
  .popularity-icon {
    width: 40px !important;
    height: 40px !important;
    flex-basis: 40px !important;
    padding: 8px 7px !important;
  }
  .popularity-icon i:nth-child(1) { height: 11px !important; }
  .popularity-icon i:nth-child(2) { height: 20px !important; }
  .popularity-icon i:nth-child(3) { height: 15px !important; }
  .popularity-title {
    font-size: .98rem !important;
    line-height: 1.08 !important;
  }
  .popularity-title-semester { margin-top: 2px !important; }
  .popularity-link {
    width: 120px !important;
    min-height: 50px !important;
    padding: 7px 8px !important;
    grid-template-columns: 22px minmax(0,1fr) !important;
    gap: 7px !important;
    font-size: .70rem !important;
  }
  .popularity-link-icon {
    width: 22px !important;
    height: 25px !important;
    padding: 4px 3px !important;
  }
}

/* ==========================================================================\n   v0.7.10 — Popularité: use the exact site palette + glass treatment\n   UI-only. Keeps the compact layout while matching the application's own\n   card/background/blur variables in both light and dark themes.\n   ========================================================================== */
.popularity-card {
  --pop-accent: var(--accent-color) !important;
  --pop-accent-soft: var(--accent-color) !important;
  --pop-border: var(--glass-border) !important;
  --pop-border-soft: var(--border-color) !important;
  --pop-row: var(--card-soft) !important;
  --pop-track: color-mix(in srgb, var(--text-color) 12%, transparent) !important;
  --pop-muted: var(--muted-color) !important;

  background: var(--card-bg) !important;
  border-color: var(--glass-border) !important;
  box-shadow: var(--shadow) !important;
  backdrop-filter: blur(18px) saturate(128%) !important;
  -webkit-backdrop-filter: blur(18px) saturate(128%) !important;
}

html[data-theme="dark"] .popularity-card {
  background: var(--card-bg) !important;
  border-color: var(--glass-border) !important;
  box-shadow: var(--shadow) !important;
}

.popularity-card::before {
  display: none !important;
  background: none !important;
}

.popularity-icon,
.popularity-link,
.popularity-table,
.popularity-row,
.popularity-empty {
  border-color: var(--border-color) !important;
}

.popularity-icon {
  background: var(--card-soft) !important;
  box-shadow: none !important;
}
.popularity-icon i {
  background: var(--accent-color) !important;
  box-shadow: none !important;
}

.popularity-link {
  background: var(--card-soft) !important;
  border-color: var(--border-color) !important;
  box-shadow: none !important;
}
.popularity-link:hover {
  background: var(--input-focus-bg) !important;
  border-color: var(--accent-color) !important;
}
.popularity-link-icon {
  border-color: var(--accent-color) !important;
  box-shadow: none !important;
}
.popularity-link-icon i { background: var(--accent-color) !important; }

.popularity-select select,
html[data-theme="dark"] .popularity-select select {
  background: var(--input-bg) !important;
  border-color: var(--border-color) !important;
}

.popularity-table,
html[data-theme="dark"] .popularity-table {
  background: color-mix(in srgb, var(--card-soft) 64%, transparent) !important;
}

.popularity-row {
  background: var(--card-soft) !important;
  border-color: var(--border-color) !important;
  box-shadow: none !important;
}
.popularity-row:hover {
  background: var(--input-focus-bg) !important;
  border-color: var(--border-color) !important;
  transform: none !important;
}

.popularity-progress::-webkit-progress-bar {
  background: color-mix(in srgb, var(--text-color) 12%, transparent) !important;
}
.popularity-progress::-webkit-progress-value {
  background: var(--accent-color) !important;
  box-shadow: none !important;
}
.popularity-progress::-moz-progress-bar {
  background: var(--accent-color) !important;
}

.popularity-empty,
html[data-theme="dark"] .popularity-empty {
  background: color-mix(in srgb, var(--card-soft) 54%, transparent) !important;
}
.popularity-empty-icon {
  background: var(--card-soft) !important;
  border-color: var(--border-color) !important;
  box-shadow: none !important;
}
.popularity-empty-icon::before { border-color: var(--muted-color) !important; }

/* Mobile gets the same exact app glass treatment. */
@media (max-width: 760px) {
  .popularity-card {
    background: var(--card-bg) !important;
    border-color: var(--glass-border) !important;
    box-shadow: var(--shadow) !important;
    backdrop-filter: blur(18px) saturate(128%) !important;
    -webkit-backdrop-filter: blur(18px) saturate(128%) !important;
  }
}