/* ============================================================
   Collegion — Application Styles
   © 2026 StratSystems LLC
   ============================================================ */

:root{
  /* Base (lighter) */
  --bg0:#0D1220;   /* was #070A10 */
  --bg1:#121A2C;   /* was #0B0F17 */
  --panel:#161F33; /* was #0F1522 */
  --panel2:#1A2540;/* was #111A2B */
  /* Borders (a bit more visible) */
  --border: rgba(255,255,255,0.10);  /* was 0.08 */
  --border2: rgba(255,255,255,0.16); /* was 0.12 */
  /* Text */
  --text:#EAF0FF;
  --muted:#B8C3E0; /* slightly brighter */
  /* Brand */
  --primary:#6D5EF7;
  --primaryHover:#5B4CF0;
  --danger:#EF4444;
  --dangerHover:#DC2626;
  /* Surfaces (slightly less “muddy”) */
  --chip: rgba(255,255,255,0.08);      /* was 0.06 */
  --pill: rgba(255,255,255,0.08);      /* was 0.06 */
  --pillHover: rgba(179, 145, 145, 0.12); /* was 0.10 */
  /* Effects */
  --shadow: 0 18px 50px rgba(0,0,0,0.45);  /* was 0.55 */
  --shadow2: 0 10px 25px rgba(0,0,0,0.28); /* was 0.35 */
  --ring: 0 0 0 4px var(--p18);
  --radius: 18px;
  --radius2: 24px;
  --ease: cubic-bezier(.2,.8,.2,1);
  /* === Brand color variables — updated by applyOrgBranding() === */
  --p03: rgba(109,94,247,0.03);
  --p035: rgba(109,94,247,0.035);
  --p04: rgba(109,94,247,0.04);
  --p05: rgba(109,94,247,0.05);
  --p06: rgba(109,94,247,0.06);
  --p075: rgba(109,94,247,0.075);
  --p08: rgba(109,94,247,0.08);
  --p095: rgba(109,94,247,0.095);
  --p10: rgba(109,94,247,0.10);
  --p12: rgba(109,94,247,0.12);
  --p14: rgba(109,94,247,0.14);
  --p15: rgba(109,94,247,0.15);
  --p16: rgba(109,94,247,0.16);
  --p18: rgba(109,94,247,0.18);
  --p22: rgba(109,94,247,0.22);
  --p25: rgba(109,94,247,0.25);
  --p28: rgba(109,94,247,0.28);
  --p34: rgba(109,94,247,0.34);
  --p35: rgba(109,94,247,0.35);
  --p38: rgba(109,94,247,0.38);
  --p40: rgba(109,94,247,0.40);
  --p45: rgba(109,94,247,0.45);
  --p52: rgba(109,94,247,0.52);
  --p55: rgba(109,94,247,0.55);
  --p6: rgba(109,94,247,0.6);
  --p9: rgba(109,94,247,0.9);
  --p95: rgba(109,94,247,0.95);
  --p100: rgba(109,94,247,1);
  --s15: rgba(59,130,246,0.15);
  --s18: rgba(59,130,246,0.18);
  --s22: rgba(59,130,246,0.22);
  --s25: rgba(59,130,246,0.25);
  --s35: rgba(59,130,246,0.35);
  --s85: rgba(59,130,246,0.85);
  --s9: rgba(59,130,246,0.9);
  --s95: rgba(59,130,246,0.95);
  --a14: rgba(168,85,247,0.14);
  --a18: rgba(168,85,247,0.18);
  --a22: rgba(168,85,247,0.22);
  --a28: rgba(168,85,247,0.28);
  --a35: rgba(168,85,247,0.35);
  --a40: rgba(168,85,247,0.40);
  --a9: rgba(168,85,247,0.9);
  --a95: rgba(168,85,247,0.95);
}
/* =======================
   2026 Light (Classroom-y)
   ======================= */
body[data-theme="light"]{
  /* Base */
  --bg0:#F6F8FC;      /* soft bluish white */
  --bg1:#EEF3FB;      /* subtle depth */
  --panel:#FFFFFF;    /* cards */
  --panel2:#F3F6FD;   /* inner panels */
  --border: rgba(15, 23, 42, 0.10);
  --border2: rgba(15, 23, 42, 0.16);
  --text:#0F172A;     /* slate-900 */
  --muted:#475569;    /* slate-600 */
  /* Brand (Google-classroom-ish indigo/blue) */
  --primary:#1A73E8;        /* Google blue */
  --primaryHover:#1667D9;
  --danger:#D93025;         /* Google red */
  --dangerHover:#B3261E;
  /* Surfaces */
  --chip: rgba(26,115,232,0.10);
  --pill: rgba(15,23,42,0.04);
  --pillHover: rgba(15,23,42,0.07);
  /* Effects */
  --shadow: 0 18px 50px rgba(15,23,42,0.12);
  --shadow2: 0 10px 25px rgba(15,23,42,0.10);
  --ring: 0 0 0 4px rgba(26,115,232,0.22);
}
/* Light theme background */
body[data-theme="light"]{
  background:
    radial-gradient(900px 420px at 18% -10%, rgba(26,115,232,0.12), transparent 60%),
    radial-gradient(700px 380px at 92% 10%, rgba(66,133,244,0.10), transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}
/* Light theme header glass */
body[data-theme="light"] .site-header{
  background: rgba(255,255,255,0.75);
  border-bottom: 1px solid var(--border);
}
/* Removed duplicate card style - see line 900 for light theme override */
/* Inputs for light */
/* Removed - overridden by modern input styles at line 833 */
/* Tabs/pills for light */
/* Removed - overridden by modern toggle/tab styles at line 997 */
*{ box-sizing:border-box; }
body{
  margin:0;
  color:var(--text);
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  font-feature-settings: "cv02","cv03","cv04","cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background:
    radial-gradient(900px 420px at 18% -10%, var(--p28), transparent 60%),
    radial-gradient(700px 380px at 92% 10%, var(--s22), transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  min-height:100vh;
}
h1,h2,h3{ letter-spacing:-0.025em; font-weight:700; }
h2{ font-size:17px; margin:0 0 10px; letter-spacing:-0.02em; }
main{ max-width:1100px; margin:auto; padding:22px 20px 60px; }
.muted{ color:var(--muted); font-size:13px; line-height:1.5; font-weight:400; }
.hidden{ display:none; }
/* ===== Site Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:20;
  background: rgba(16,22,38,0.72);
  backdrop-filter: blur(14px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  max-width:1100px;
  margin:auto;
  padding:14px 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
/* Brand style moved to line 905 with flex layout */
.header-user{ display:flex; align-items:center; gap:14px; }
.user-meta{ text-align:right; line-height:1.2; }
.user-name{ display:block; font-weight:600; font-size:14px; }
.user-email{ display:block; font-size:12px; color:var(--muted); }
/* Logged-out state */
body.logged-out main { display:none; }
body:not(.logged-out) #loginCard { display:none; }
body.logged-out .header-user{ display:none; }
/* ===== Cards ===== */
.card{
  background:
    linear-gradient(180deg, rgba(255,255,255,0.06), transparent 55%),
    linear-gradient(180deg, rgba(22,31,51,0.92), rgba(18,26,44,0.92));
  border:1px solid var(--border);
  border-radius: var(--radius2);
  padding:18px;
  margin-bottom:18px;
  box-shadow: var(--shadow2);
}
/* Login polish */
#loginCard{ position:relative; overflow:hidden; }
#loginCard:before{
  content:"";
  position:absolute;
  inset:-2px;
  background:
    radial-gradient(600px 250px at 10% 0%, var(--p25), transparent 55%),
    radial-gradient(500px 250px at 90% 10%, var(--s18), transparent 55%);
  pointer-events:none;
}
#loginCard > *{ position:relative; z-index:1; }
label{ font-size:12px; font-weight:600; color:var(--text); }
/* ===== Inputs ===== */
input, textarea{
  width:100%;
  padding:12px 12px;
  margin:8px 0 12px;
  border-radius: 14px;
  border:1px solid var(--border);
  background: rgba(8,12,20,0.65);
  color: var(--text);
  outline:none;
  transition: border-color 160ms var(--ease), box-shadow 160ms var(--ease), transform 160ms var(--ease);
}
input::placeholder, textarea::placeholder{ color: rgba(170,182,214,0.55); }
input:focus, textarea:focus{
  border-color: var(--p55);
  box-shadow: var(--ring);
}
input:hover, textarea:hover{ border-color: rgba(255,255,255,0.14); }
/* Date/time picker styles moved to line 757 with theme-specific versions */
/* ===== Buttons ===== */
button{
  border:1px solid rgba(255,255,255,0.10);
  padding:10px 14px;
  border-radius: 14px;
  cursor:pointer;
  font-weight:700;
  color:white;
  background: linear-gradient(135deg, var(--p100), var(--s9));
  box-shadow: 0 10px 22px rgba(0,0,0,0.35);
  transition: transform 140ms var(--ease), filter 140ms var(--ease), box-shadow 140ms var(--ease);
}
button:hover{ transform: translateY(-1px); filter: brightness(1.05); box-shadow: 0 14px 26px rgba(0,0,0,0.45); }
button:active{ transform: translateY(0px) scale(0.99); }
button:disabled{ opacity:0.55; cursor:not-allowed; transform:none; box-shadow:none; }
button.secondary{
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border:1px solid var(--border);
  box-shadow:none;
}
button.secondary:hover{ background: rgba(255,255,255,0.10); }
button.danger{ background: linear-gradient(135deg, rgba(239,68,68,1), rgba(244,63,94,0.95)); }
button.danger:hover{ filter: brightness(1.02); }
button:focus-visible,
input:focus-visible,
textarea:focus-visible{
  outline:none;
  box-shadow: var(--ring);
  border-color: var(--p55);
}
/* ===== Tabs ===== */
.top-tabs{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:14px; }
.sub-tabs{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:22px; }
.tab, .subtab{
  user-select:none;
  cursor:pointer;
  font-weight:900;
  border:1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: rgba(234,240,255,0.72);
  border-radius:999px;
  transition: transform 140ms var(--ease), background 140ms var(--ease), border-color 140ms var(--ease);
}
.tab{ padding:9px 15px; font-size:14px; }
.subtab{ padding:7px 13px; font-weight:800; font-size:13px; }
.tab:hover, .subtab:hover{ transform: translateY(-1px); border-color: rgba(255,255,255,0.14); }
.tab.active, .subtab.active{
  background: var(--p18);
  border-color: var(--p38);
  color: var(--text);
}
/* Toggle buttons */
.btn-toggle.active{
  background: var(--p18) !important;
  border-color: var(--p38) !important;
  color: var(--text) !important;
}
/* Login route selector active state */
#loginRouteToggle button.route-active{
  background: var(--p22) !important;
  border-color: var(--p55) !important;
  color: var(--text) !important;
  box-shadow: 0 0 0 3px var(--p15), 0 10px 22px rgba(0,0,0,0.35) !important;
  transform: translateY(-1px);
}
#loginRouteToggle button{
  transition: all 160ms var(--ease);
}
/* ===== Calendar ===== */
.calendar-header{ display:flex; justify-content:space-between; align-items:center; gap:10px; }
.calendar{
  display:grid;
  grid-template-columns:repeat(7,1fr);
  gap:10px;
  margin-top:12px;
}
.weekday{
  font-weight:900;
  text-align:center;
  color: rgba(170,182,214,0.75);
  padding:6px 0;
  font-size:12px;
  letter-spacing:0.06em;
  text-transform:uppercase;
}
.day{
  background:
    linear-gradient(180deg, rgba(255,255,255,0.03), transparent 55%),
    rgba(17,26,43,0.55);
  border:1px solid var(--border);
  border-radius: var(--radius2);
  padding:10px;
  min-height:128px;
  box-shadow: 0 10px 22px rgba(0,0,0,0.25);
  transition: transform 150ms var(--ease), border-color 150ms var(--ease), background 150ms var(--ease);
  display:flex;
  flex-direction:column;
}
.day:hover{
  transform: translateY(-2px);
  border-color: rgba(255,255,255,0.14);
  background: rgba(17,26,43,0.70);
}
.day-num{
  font-weight:950;
  margin-bottom:8px;
  color: var(--text);
  font-size:13px;
}
.day.today{
  border-color: var(--p55);
  box-shadow: 0 0 0 3px var(--p18), 0 14px 30px rgba(0,0,0,0.35);
}
.day.past{
  background: rgba(8,12,20,0.55);
  opacity:0.58;
}
.day.past:hover{ transform:none; }
/* Pills */
.session-pill, .group-pill{
  font-size:12px;
  padding:7px 9px;
  border-radius: 999px;
  margin-top:7px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  border:1px solid var(--border);
  transition: background 140ms var(--ease), transform 140ms var(--ease), border-color 140ms var(--ease);
}
.session-pill{
  background: rgba(255,255,255,0.06);
  color: var(--text);
  cursor:pointer;
}
.session-pill:hover{
  background: rgba(255,255,255,0.10);
  transform: translateY(-1px);
  border-color: rgba(255,255,255,0.14);
}
.session-pill.completed{
  background: rgba(34,197,94,0.14);
  border-color: rgba(34,197,94,0.35);
  cursor: default;
}
.session-pill.completed:hover{ transform:none; }
.group-pill{
  background: var(--a14);
  border-color: var(--a28);
  cursor:pointer;
}
.group-pill:hover{
  background: var(--a22);
  transform: translateY(-1px);
  border-color: var(--a40);
}
/* Lists */
.list-item{
  border-bottom:1px solid rgba(255,255,255,0.06);
  padding:14px 0;
}
.list-item:last-child{ border-bottom:none; }
/* Chips / Badges */
.chip{
  display:inline-block;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  padding:6px 10px;
  border-radius:999px;
  font-size:12px;
  color: var(--text);
}
.badge{
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: 6px;
  display:inline-block;
  border:1px solid rgba(255,255,255,0.10);
}
.badge.joined{
  background: rgba(34,197,94,0.18);
  border-color: rgba(34,197,94,0.30);
  color: #BFF7D0;
}
.badge.full{
  background: rgba(239,68,68,0.18);
  border-color: rgba(239,68,68,0.30);
  color: #FFD0D0;
}
.row{ display:flex; gap:10px; flex-wrap:wrap; }
.row > * { flex:1; min-width: 220px; }
.divider{ height:1px; background: var(--border); margin:14px 0; }
/* ===== Completed sessions grid ===== */
.session-grid{
  display:grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap:10px;
  margin-top:10px;
}
.session-tile{
  background: rgba(255,255,255,0.04);
  border:1px solid var(--border);
  border-radius: var(--radius2);
  padding:12px;
}
.session-tile .title{ font-weight:950; margin-bottom:6px; }
.session-tile .meta{ color: var(--muted); font-size:12px; line-height:1.35; }
.session-tile .chips{ margin-top:8px; display:flex; flex-wrap:wrap; gap:6px; }
/* ===== Key Dates filter bar ===== */
.kd-filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}
.kd-filter-pills {
  display: flex;
  align-items: center;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 3px;
  gap: 2px;
  flex-shrink: 0;
}
.kd-pill {
  background: transparent;
  border: none;
  border-radius: 8px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: background 120ms var(--ease), color 120ms var(--ease);
  white-space: nowrap;
  box-shadow: none;
}
.kd-pill:hover { background: rgba(255,255,255,0.07); color: var(--text); transform: none; filter: none; box-shadow: none; }
.kd-pill.active { background: var(--primary); color: #fff; box-shadow: none; }
.kd-pill:active { transform: scale(0.97); }
body[data-theme="light"] .kd-filter-pills { background: var(--panel2); border-color: var(--border); }
body[data-theme="light"] .kd-pill { color: var(--muted); }
body[data-theme="light"] .kd-pill:hover { background: rgba(26,115,232,0.07); color: var(--text); }
body[data-theme="light"] .kd-pill.active { background: var(--primary); color: #fff; }
/* ===== Mentor Board ===== */
.mentor-board-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.mentor-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.mentor-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow 150ms var(--ease);
}
.mentor-card:hover { box-shadow: var(--shadow2); }
.mentor-card-top {
  display: flex;
  align-items: center;
  gap: 10px;
}
.mentor-avatar {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  flex-shrink: 0;
  letter-spacing: -0.02em;
}
.mentor-info { flex: 1; min-width: 0; }
.mentor-name {
  font-weight: 700;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mentor-email {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 1px;
}
.mentor-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}
.mentor-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px 4px;
  gap: 2px;
}
.mentor-stat-val {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}
.mentor-stat-lbl {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
}
body[data-theme="light"] .mentor-card {
  background: #fff;
  box-shadow: 0 2px 8px rgba(15,23,42,0.06);
}
body[data-theme="light"] .mentor-stat {
  background: rgba(15,23,42,0.03);
}
@media(max-width:900px) { .mentor-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media(max-width:560px) { .mentor-grid { grid-template-columns: 1fr; } }
/* ===== Modals (glass) ===== */
.modal-backdrop{
  position:fixed;
  inset:0;
  z-index:100;
  background: rgba(0,0,0,0.62);
  display:none;
  align-items:center;
  justify-content:center;
  padding:18px;
  backdrop-filter: blur(10px);
}
/* Safety net: never show any modal while logged out, regardless of inline style */
body.logged-out .modal-backdrop{
  display:none !important;
}
.modal{
  width:min(720px, 100%);
  border-radius: 22px;
  padding:18px;
  border:1px solid rgba(255,255,255,0.12);
  background:
    radial-gradient(900px 420px at 20% -10%, var(--p25), transparent 60%),
    linear-gradient(180deg, rgba(20,28,46,0.92), rgba(11,15,23,0.92));
  box-shadow: var(--shadow);
  transform: translateY(6px);
  animation: modalIn 180ms var(--ease) forwards;
}
@keyframes modalIn{ to { transform: translateY(0); } }
.modal-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  padding-bottom:10px;
  border-bottom:1px solid var(--border);
}
.modal-title{
  font-size:16px;
  font-weight:700;
}
.modal-actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:14px;
}
/* ======================================
   2026 LIGHT — NEW AGE PURPLE
   ====================================== */
body[data-theme="light"]{
  /* Base */
  --bg0:#F7F6FC;          /* warm lavender white */
  --bg1:#EFEFFD;
  /* Surfaces */
  --panel:#FFFFFF;
  --panel2:#F6F4FF;       /* subtle purple tint */
  /* Borders */
  --border: rgba(88, 80, 236, 0.14);
  --border2: rgba(88, 80, 236, 0.22);
  /* Text */
  --text:#1B1B2A;
  --muted:#5E5F7A;
  /* Brand (purple-first) */
  --primary:#6D5EF7;      /* your original purple */
  --primaryHover:#5A4EF0;
  --danger:#E5484D;
  --dangerHover:#C6363B;
  /* Pills / chips */
  --chip: var(--p12);
  --pill: var(--p08);
  --pillHover: var(--p14);
  /* Elevation */
  --shadow: 0 24px 60px rgba(80,70,180,0.14);
  --shadow2: 0 12px 28px rgba(80,70,180,0.12);
  /* Focus */
  --ring: 0 0 0 4px var(--p28);
}
/* Page background */
body[data-theme="light"]{
  background:
    radial-gradient(1100px 520px at 10% -10%, var(--p22), transparent 60%),
    radial-gradient(900px 420px at 95% 10%, var(--a18), transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}
/* Header glass */
body[data-theme="light"] .site-header{
  background: rgba(255,255,255,0.80);
  backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid var(--border);
}
/* ================= CARDS ================= */
body[data-theme="light"] .card{
  background:
    linear-gradient(180deg, var(--p05), transparent 60%),
    var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow2);
}
/* ================= INPUTS ================= */
body[data-theme="light"] input,
body[data-theme="light"] textarea{
  background:
    linear-gradient(180deg, var(--p04), transparent 70%),
    #FFFFFF;
  border: 1px solid var(--border);
  color: var(--text);
}
body[data-theme="light"] input:focus,
body[data-theme="light"] textarea:focus{
  border-color: var(--p45);
  box-shadow: var(--ring);
}
/* ================= BUTTONS ================= */
body[data-theme="light"] button{
  background:
    linear-gradient(135deg, var(--p100), var(--a95));
  box-shadow: 0 14px 30px var(--p35);
}
body[data-theme="light"] button.secondary{
  background: var(--p08);
  color: var(--text);
  box-shadow: none;
}
body[data-theme="light"] button.secondary:hover{
  background: var(--p14);
}
/* ================= TABS ================= */
body[data-theme="light"] .tab,
body[data-theme="light"] .subtab{
  background: var(--p06);
  border-color: var(--border);
  color: rgba(27,27,42,0.75);
}
body[data-theme="light"] .tab.active,
body[data-theme="light"] .subtab.active{
  background: var(--p18);
  border-color: var(--p35);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--p12);
}
/* ================= CALENDAR ================= */
body[data-theme="light"] .day{
  background:
    linear-gradient(180deg, var(--p06), transparent 60%),
    #FFFFFF;
  border-color: var(--border);
  box-shadow: var(--shadow2);
}
body[data-theme="light"] .day:hover{
  background:
    linear-gradient(180deg, var(--p10), transparent 60%),
    #FFFFFF;
}
/* ================= PILLS ================= */
body[data-theme="light"] .session-pill{
  background: var(--p10);
  border-color: var(--p22);
}
body[data-theme="light"] .session-pill.completed{
  background: rgba(34,197,94,0.18);
  border-color: rgba(34,197,94,0.30);
}
body[data-theme="light"] .group-pill{
  background: var(--a18);
  border-color: var(--a35);
}
/* ================= CHIPS ================= */
body[data-theme="light"] .chip{
  background: var(--p12);
  border-color: var(--p22);
}
/* ================= MODALS ================= */
body[data-theme="light"] .modal{
  background:
    radial-gradient(900px 420px at 20% -10%, var(--p18), transparent 60%),
    #FFFFFF;
  border-color: var(--border2);
  box-shadow: var(--shadow);
}
body[data-theme="light"] .modal-backdrop{
  background: rgba(50,40,120,0.35);
}
/* ======================================
   LIGHT THEME — KEEP DARK BUTTON STYLE
   ====================================== */
body[data-theme="light"] button{
  color: #ffffff !important;
  font-weight: 700;
  background: linear-gradient(
    135deg,
    var(--p100),
    var(--s9)
  ) !important;
  border: 1px solid var(--p45) !important;
  box-shadow:
    0 10px 22px var(--p35),
    0 2px 6px var(--s25) !important;
}
body[data-theme="light"] button:hover{
  filter: brightness(1.06);
  box-shadow:
    0 14px 30px var(--p45),
    0 4px 10px var(--s35) !important;
}
body[data-theme="light"] button:active{
  transform: translateY(0) scale(0.99);
}
/* Secondary buttons stay light */
body[data-theme="light"] button.secondary{
  background: var(--p08) !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
  box-shadow: none !important;
}
/* Danger buttons keep Google-ish red */
body[data-theme="light"] button.danger{
  background: linear-gradient(
    135deg,
    rgba(217,48,37,1),
    rgba(234,67,53,0.95)
  ) !important;
  box-shadow: 0 10px 22px rgba(217,48,37,0.35) !important;
}
/* =============================
   LIGHT THEME — PAST DAYS (crisp)
   ============================= */
body[data-theme="light"] .day.past{
  opacity: 1 !important;                 /* remove grey overlay */
  box-shadow: none !important;           /* recessed */
  /* soft lavender paper + subtle pattern */
  background:
    linear-gradient(180deg, var(--p04), transparent 65%),
    repeating-linear-gradient(
      135deg,
      var(--p035) 0px,
      var(--p035) 10px,
      rgba(255,255,255,0.0) 10px,
      rgba(255,255,255,0.0) 20px
    ),
    #F4F5FF !important;
  border: 1px solid var(--p14) !important;
}
/* Keep it non-interactive without looking “disabled” */
body[data-theme="light"] .day.past:hover{
  transform: none !important;
  border-color: var(--p14) !important;
  background:
    linear-gradient(180deg, var(--p04), transparent 65%),
    repeating-linear-gradient(
      135deg,
      var(--p035) 0px,
      var(--p035) 10px,
      rgba(255,255,255,0.0) 10px,
      rgba(255,255,255,0.0) 20px
    ),
    #F4F5FF !important;
  cursor: default;
}
/* Slightly soften the day number only (not the whole tile) */
body[data-theme="light"] .day.past .day-num{
  color: rgba(27,27,42,0.55) !important;
}
/* Make native controls (date/time pickers) match theme */
body[data-theme="dark"] { color-scheme: dark; }
body[data-theme="light"]{ color-scheme: light; }
/* Dark theme: white picker icons */
body[data-theme="dark"] input[type="date"]::-webkit-calendar-picker-indicator,
body[data-theme="dark"] input[type="time"]::-webkit-calendar-picker-indicator{
  filter: invert(1);
  opacity: 0.9;
}
/* Light theme: dark picker icons */
body[data-theme="light"] input[type="date"]::-webkit-calendar-picker-indicator,
body[data-theme="light"] input[type="time"]::-webkit-calendar-picker-indicator{
  filter: invert(0);
  opacity: 0.75;
}
/* ===== Theme Toggle Switch ===== */
/* ===== Theme Toggle (Professional) ===== */
.theme-toggle{
  display:flex;
  align-items:center;
  gap:10px;
  padding:7px 10px;
  border-radius:999px;
  border:1px solid var(--border);
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(10px);
}
.theme-toggle .label{
  font-size:12px;
  font-weight:700;
  letter-spacing:0.02em;
  color: rgba(234,240,255,0.78);
}
body[data-theme="light"] .theme-toggle .label{
  color: rgba(27,27,42,0.70);
}
/* switch */
.switch{
  position:relative;
  width:42px;
  height:22px;
  border-radius:999px;
  border:1px solid var(--border);
  background: rgba(255,255,255,0.10);
  cursor:pointer;
  transition: background 160ms var(--ease), border-color 160ms var(--ease);
}
.switch::after{
  content:"";
  position:absolute;
  top:2px; left:2px;
  width:18px; height:18px;
  border-radius:999px;
  background: linear-gradient(135deg, var(--p100), var(--s9));
  box-shadow: 0 8px 18px rgba(0,0,0,0.22);
  transition: transform 180ms var(--ease);
}
body[data-theme="light"] .switch::after{
  transform: translateX(20px);
}
/* subtle hover */
.switch:hover{
  border-color: rgba(255,255,255,0.14);
}
body[data-theme="light"] .switch:hover{
  border-color: var(--p28);
}
/* ===============================
   LIGHT THEME — MODERN INPUT POP (20% darker)
   =============================== */
body[data-theme="light"] input,
body[data-theme="light"] textarea,
body[data-theme="light"] select{
  /* darker than card, still clean */
  background: var(--p075);   /* was ~0.045 */
  border: 1px solid rgba(15,23,42,0.22); /* darker edge */
  color: var(--text);
  /* crisp but restrained depth */
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.65),
    0 2px 4px rgba(15,23,42,0.12);
  transition:
    border-color 160ms var(--ease),
    box-shadow 160ms var(--ease),
    background 160ms var(--ease);
}
.segmented{
  display:flex;
  border:1px solid var(--border);
  border-radius:12px;
  overflow:hidden;
  background:rgba(255,255,255,0.03);
}
.seg{
  padding:9px 12px;
  font-weight:600;
  border:0;
  background:transparent;
  cursor:pointer;
  color:var(--text);
}
.seg + .seg{
  border-left:1px solid var(--border);
}
.seg.active{
  background:rgba(99,102,241,0.22);
}
/* hover: clearer affordance */
body[data-theme="light"] input:hover,
body[data-theme="light"] textarea:hover,
body[data-theme="light"] select:hover{
  background: var(--p095);
  border-color: var(--p34);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.75),
    0 4px 10px rgba(15,23,42,0.14);
}
/* focus: professional, not chunky */
body[data-theme="light"] input:focus,
body[data-theme="light"] textarea:focus,
body[data-theme="light"] select:focus{
  background: #FFFFFF;
  border-color: var(--p52);
  box-shadow:
    0 0 0 3px var(--p22),
    0 8px 18px rgba(15,23,42,0.14);
}
/* placeholder — definitely active, not disabled */
body[data-theme="light"] input::placeholder,
body[data-theme="light"] textarea::placeholder{
  color: rgba(27,27,42,0.48);
}
body[data-theme="light"] .card{
  background: rgba(255,255,255,0.90);
  border-color: rgba(15,23,42,0.12);
}
/* brand style moved to line 1091 with complete styling */
/* only show the toggle when logged out */
.login-only{ display:none; }
body.logged-out .login-only{ display:flex; }
/* =========================
   Mobile calendar fixes
   ========================= */
@media (max-width: 720px){
  main{ padding:16px 12px 40px; }
  /* reduce grid pressure */
  .calendar{ gap:6px; }
  /* smaller weekday header */
  .weekday{
    font-size:10px;
    letter-spacing:0.04em;
    padding:4px 0;
  }
  /* smaller day tiles */
  .day{
    padding:6px;
    min-height:92px;
    border-radius:16px;
    display:flex;
    flex-direction:column;
  }
  .day-num{ font-size:12px; margin-bottom:6px; }
  /* pills shrink + wrap nicer */
  .session-pill, .group-pill{
    font-size:10px;
    padding:5px 7px;
    margin-top:5px;
  }
  /* buttons inside day tile */
  .day button{
    padding:6px 8px !important;
    font-size:11px !important;
    border-radius:12px;
  }
  /* prevent overflow from long text */
  .day, .session-pill, .group-pill { min-width:0; }
}
/* Mobile: view day full-width at bottom */
@media (max-width: 720px){
  .day-actions{
    justify-content:stretch;
    padding-top:4px;
  }
  .day-actions .view-day-btn{
    width:100%;
    text-align:center;
  }
}
@media (max-width: 720px){
  /* event indicator dot */
  .day.has-events::after{
    content:"";
    display:block;
    width:6px;
    height:6px;
    margin:6px auto 0;
    border-radius:999px;
    background: var(--primary);
    box-shadow: 0 0 0 3px var(--p25);
  }
  /* different color if completed-only */
  .day.has-completed::after{
    background: #22c55e;
    box-shadow: 0 0 0 3px rgba(34,197,94,0.25);
  }
}
/* ===============================
   LIGHT THEME — SESSION STATUS TEXT
   =============================== */
body[data-theme="light"] .list-item .muted{
  color: rgba(27,27,42,0.72);   /* darker than default muted */
}
/* Make Joined / Present counts pop */
body[data-theme="light"] .list-item .muted strong,
body[data-theme="light"] .list-item .muted b{
  color: #1B1B2A;
  font-weight: 700;
}
/* ===============================
   LIGHT THEME — TOGGLE / SELECTED STATES
   =============================== */
body[data-theme="light"] .btn-toggle.active,
body[data-theme="light"] .tab.active,
body[data-theme="light"] .subtab.active{
  background: linear-gradient(
    135deg,
    var(--p28),
    var(--a22)
  ) !important;
  border-color: var(--p55) !important;
  color: #1B1B2A !important;
  box-shadow:
    inset 0 0 0 1px var(--p35),
    0 4px 12px var(--p25);
}
/* ===============================
   LIGHT THEME — VIEW DAY SELECTED
   =============================== */
body[data-theme="light"] .day.selected button{
  background: linear-gradient(
    135deg,
    var(--p95),
    var(--a9)
  ) !important;
  color: #ffffff !important;
  border-color: var(--p6) !important;
  box-shadow:
    0 6px 16px var(--p35),
    inset 0 0 0 1px rgba(255,255,255,0.25);
}
/* ===============================
   LIGHT THEME — JOINED BADGE FIX
   =============================== */
body[data-theme="light"] .badge.joined{
  background: rgba(34,197,94,0.35);   /* stronger green */
  border-color: rgba(22,163,74,0.75); /* darker edge */
  color: #065f46;                     /* dark green text */
  font-weight: 700;
}
.event-pill{
  font-size:12px;
  padding:7px 9px;
  border-radius:999px;
  margin-top:7px;
  display:block;
  width:100%;
  min-width:0;
  box-sizing:border-box;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  border:1px solid var(--border);
  cursor:pointer;
  background: rgba(245, 158, 11, 0.18);
  border-color: rgba(245, 158, 11, 0.35);
}
.event-pill:hover{
  transform: translateY(-1px);
  background: rgba(245, 158, 11, 0.26);
  border-color: rgba(245, 158, 11, 0.55);
}
/* School break pill */
.break-pill{
  font-size:11px;
  padding:5px 8px;
  border-radius:999px;
  margin-top:5px;
  display:block;
  width:100%;
  min-width:0;
  box-sizing:border-box;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  background: rgba(239, 68, 68, 0.18);
  border: 1px solid rgba(239, 68, 68, 0.40);
  color: #fca5a5;
  font-weight:700;
  letter-spacing:0.01em;
  cursor:default;
  pointer-events:none;
}
body[data-theme="light"] .break-pill{
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.35);
  color: #b91c1c;
}
/* ===== Day overflow toggle (+N more) ===== */
.day-overflow-toggle{
  font-size:11px;
  font-weight:700;
  margin-top:6px;
  padding:4px 8px;
  border-radius:999px;
  border:1px dashed var(--border2);
  color:var(--muted);
  cursor:pointer;
  text-align:center;
  transition: background 140ms var(--ease), color 140ms var(--ease);
}
.day-overflow-toggle:hover{
  background: var(--p10);
  color: var(--text);
  border-color: var(--p35);
}
/* Day overlay for break days */
.day.school-break{
  background:
    repeating-linear-gradient(
      135deg,
      rgba(239,68,68,0.06) 0px,
      rgba(239,68,68,0.06) 8px,
      transparent 8px,
      transparent 16px
    ),
    rgba(17,26,43,0.55) !important;
  border-color: rgba(239,68,68,0.28) !important;
}
body[data-theme="light"] .day.school-break{
  background:
    repeating-linear-gradient(
      135deg,
      rgba(239,68,68,0.07) 0px,
      rgba(239,68,68,0.07) 8px,
      transparent 8px,
      transparent 16px
    ),
    #fff !important;
  border-color: rgba(239,68,68,0.25) !important;
}
.day{ min-width:0; }
.day-actions{
  margin-top:auto;
  padding-top:6px;
  display:flex !important;
  justify-content:flex-end !important;
  align-items:center;
}
.view-day-btn{
  font-size:10px !important;
  padding:3px 8px !important;
  border-radius:999px !important;
  line-height:1.4 !important;
  font-weight:600 !important;
  opacity:0.75;
  box-shadow:none !important;
  display:block;
  width:100%;
  text-align:center;
}
.tiny-btn{
  background: transparent;
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 999px;
  cursor: pointer;
}
.tiny-btn:hover{
  background: var(--p12);
}
/* Closed/no-show sessions (past day, not joined) */
.session-pill.closed{
  background: rgba(184, 148, 150, 0.18);     /* slate-ish */
  border-color: rgba(148,163,184,0.40);
  color: rgba(234,240,255,0.85);
  cursor: default;
}
body[data-theme="light"] .session-pill.closed{
  background: rgba(100,116,139,0.16);
  border-color: rgba(100,116,139,0.30);
  color: rgba(27,27,42,0.85);
}
.session-pill.closed:hover{
  transform:none;
  background: inherit;
}
/* No-show / unattended completed sessions */
.session-pill.no-show{
  background: rgba(239,68,68,0.18);
  border-color: rgba(239,68,68,0.40);
  color: rgba(255,255,255,0.95);
}
body[data-theme="light"] .session-pill.no-show{
  background: rgba(239,68,68,0.18);
  border-color: rgba(239,68,68,0.35);
  color: #7f1d1d;
}
.app-footer{
  text-align:center;
  font-size:12px;
  opacity:0.6;
  padding:14px 0;
  margin-top:18px;
}
/* ===== Admin Collapsible Session Rows ===== */
details.admin-session-row summary::-webkit-details-marker { display:none; }
details.admin-session-row summary::marker { display:none; }
details.admin-session-row[open] > summary {
  background: var(--p06);
  border-bottom:1px solid var(--border);
}
details.admin-session-row > summary .admin-row-arrow {
  transition: transform 160ms ease;
}
details.admin-session-row[open] > summary .admin-row-arrow {
  transform: rotate(180deg);
}
body[data-theme="light"] details.admin-session-row {
  background: var(--panel);
}
body[data-theme="light"] details.admin-session-row[open] > summary {
  background: var(--p05);
}
/* ===== FORCE HEADER LOGO SIZE (OVERRIDE ALL) ===== */
.header-left{
  display:flex;
  align-items:center;
  gap:14px;
  min-width:0;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  line-height:0; /* prevents inline image spacing */
}
/* If your PNG has whitespace, this crops it by controlling width */
.logo{
  height: 80px;        /* desired visual size */
  width: auto;         /* maintain aspect ratio */
  max-height: 60px;
  object-fit: contain; /* prevents cropping */
  display: block;
}
.switch{
  object-position: right;
}

/* ===========================
   ADMIN MODULE — Enhanced Styles
   =========================== */
.admin-kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 4px;
}
.kpi-chart-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: box-shadow 150ms var(--ease);
}
.kpi-chart-card:hover { box-shadow: var(--shadow2); }
.kpi-chart-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}
.kpi-chart-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
}
.kpi-chart-sub {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
  opacity: 0.75;
}
.kpi-chart-stat {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  flex-shrink: 0;
}
.kpi-chart-body { flex: 0 0 auto; }
.kpi-svg-chart { width: 100%; height: 120px; max-height: 120px; }
.kpi-chart-empty {
  font-size: 12px;
  color: var(--muted);
  padding: 18px 0;
  text-align: center;
}
.kpi-chart-legend { display: flex; gap: 12px; flex-wrap: wrap; }
.kpi-legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--muted);
  font-weight: 600;
}
.kpi-legend-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.kpi-hbar-wrap { display: flex; flex-direction: column; gap: 8px; padding: 4px 0; }
.kpi-hbar-row { display: flex; align-items: center; gap: 8px; }
.kpi-hbar-label {
  font-size: 11px; font-weight: 600; color: var(--muted);
  width: 70px; flex-shrink: 0;
}
.kpi-hbar-track {
  flex: 1; height: 8px;
  background: var(--border);
  border-radius: 4px; overflow: hidden;
}
.kpi-hbar-fill {
  height: 100%; border-radius: 4px;
  transition: width 400ms var(--ease);
  min-width: 2px;
}
.kpi-hbar-val {
  font-size: 12px; font-weight: 700; color: var(--text);
  width: 28px; text-align: right; flex-shrink: 0;
}
/* Edit tiles button */
.kpi-edit-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: 10px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  box-shadow: none;
  transition: background 120ms var(--ease), color 120ms var(--ease), border-color 120ms var(--ease);
}
.kpi-edit-btn:hover,
.kpi-edit-btn.open {
  background: var(--p12);
  border-color: var(--p40);
  color: var(--text);
  transform: none;
  box-shadow: none;
  filter: none;
}
body[data-theme="light"] .kpi-edit-btn:hover,
body[data-theme="light"] .kpi-edit-btn.open {
  background: rgba(26,115,232,0.08);
  border-color: rgba(26,115,232,0.35);
}
/* Breathing room between sub-tabs and content for all views */
#adminOverviewView, #adminSessionsView, #adminTutorsView,
#adminKeyDatesView, #adminExportView, #adminSettingsView,
#studentSessionsView, #studentMySessionsView,
#studentRequestsView, #studentGroupsView, #studentKeyDatesView {
  padding-top: 6px;
}
/* Controls row: filter pill + edit button inline */
.kpi-controls-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  margin: 12px 0 0;
}
.kpi-controls-row .kpi-range-bar {
  grid-column: 2;
}
.kpi-controls-row .kpi-edit-btn {
  grid-column: 3;
  justify-self: end;
}
/* KPI Date Range Filter — segmented pill */
.kpi-range-bar {
  display: flex;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 5px;
  gap: 2px;
  width: fit-content;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
  flex-wrap: nowrap;
}
.kpi-range-bar::-webkit-scrollbar { display: none; }
.kpi-range-label { display: none; }
.kpi-range-btn {
  background: transparent;
  border: none;
  border-radius: 10px;
  padding: 6px 13px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: background 120ms var(--ease), color 120ms var(--ease);
  white-space: nowrap;
  box-shadow: none;
}
.kpi-range-btn:hover {
  background: rgba(255,255,255,0.07);
  color: var(--text);
  transform: none;
  filter: none;
  box-shadow: none;
}
.kpi-range-btn.active {
  background: var(--primary);
  color: #fff;
  box-shadow: none;
}
.kpi-range-btn:active { transform: scale(0.97); }
body[data-theme="light"] .kpi-range-bar { background: #fff; border-color: var(--border); }
body[data-theme="light"] .kpi-range-btn { color: var(--muted); }
body[data-theme="light"] .kpi-range-btn:hover { background: rgba(26,115,232,0.07); color: var(--text); }
body[data-theme="light"] .kpi-range-btn.active { background: var(--primary); color: #fff; }

/* Light theme chart card */
body[data-theme="light"] .kpi-chart-card {
  background: rgba(255,255,255,0.92);
  border-color: var(--border);
  box-shadow: var(--shadow2);
}
.kpi-customize-panel {
  background: rgba(22,31,51,0.96);
  border: 1px solid var(--border2);
  border-radius: var(--radius2);
  padding: 14px 16px;
  margin-bottom: 12px;
  display: none;
  box-shadow: var(--shadow2);
}
body[data-theme="light"] .kpi-customize-panel { background: rgba(255,255,255,0.97); }
.kpi-customize-panel.open { display: block; }
.kpi-customize-panel-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--muted);
  margin-bottom: 8px;
  margin-top: 12px;
}
.kpi-customize-panel-title:first-child { margin-top: 0; }
.kpi-toggle-grid,
.insight-toggle-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.kpi-toggle-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px 5px 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  cursor: pointer;
  user-select: none;
  transition: background 120ms var(--ease), border-color 120ms var(--ease);
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}
.kpi-toggle-item:hover { background: rgba(255,255,255,0.07); color: var(--text); }
.kpi-toggle-item.active {
  background: var(--p16);
  border-color: var(--p38);
  color: var(--text);
}
body[data-theme="light"] .kpi-toggle-item { background: var(--p04); }
body[data-theme="light"] .kpi-toggle-item.active { background: var(--p12); }
.kpi-toggle-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--border2);
  flex-shrink: 0;
  transition: background 120ms;
}
.kpi-toggle-item.active .kpi-toggle-dot { background: var(--primary); }
/* Insight row */
.admin-insight-row-inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}
/* Insight cards reuse chart card base, color accent on stat */
.insight-chart-card {
  padding: 14px 16px;
}
.insight-chart-stat {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  flex-shrink: 0;
}
.insight-chart-stat[data-color=purple] { color: var(--p95); }
.insight-chart-stat[data-color=blue]   { color: var(--s95); }
.insight-chart-stat[data-color=green]  { color: rgba(34,197,94,0.95); }
.insight-chart-stat[data-color=amber]  { color: rgba(245,158,11,0.95); }
.insight-chart-stat[data-color=red]    { color: rgba(239,68,68,0.95); }
/* Session rows in admin */
.admin-session-row {
  display: flex;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  align-items: flex-start;
}
.admin-session-row:last-child { border-bottom: none; }
/* Admin chips */
.admin-chip {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  display: inline-block;
}
.admin-chip-green {
  background: rgba(34,197,94,0.15);
  border-color: rgba(34,197,94,0.35);
  color: #86efac;
}
.admin-chip-blue {
  background: var(--s15);
  border-color: var(--s35);
  color: #93c5fd;
}
.admin-chip-gray {
  background: rgba(100,116,139,0.15);
  border-color: rgba(100,116,139,0.30);
}
/* Name chips */
.admin-name-chip {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.05);
  display: inline-block;
}
.admin-name-chip.admin-name-green {
  background: rgba(34,197,94,0.12);
  border-color: rgba(34,197,94,0.28);
}
.admin-name-chip.admin-name-red {
  background: rgba(239,68,68,0.10);
  border-color: rgba(239,68,68,0.26);
}
/* Stat chips */
.admin-stat-chip {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  display: inline-block;
  white-space: nowrap;
}
.admin-stat-chip.admin-stat-green {
  background: rgba(34,197,94,0.10);
  border-color: rgba(34,197,94,0.25);
}
.admin-stat-chip.admin-stat-red {
  background: rgba(239,68,68,0.09);
  border-color: rgba(239,68,68,0.22);
}
.admin-stat-chip.admin-stat-amber {
  background: rgba(245,158,11,0.10);
  border-color: rgba(245,158,11,0.25);
}
/* Tutor leaderboard rows */
.tutor-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 140ms var(--ease);
}
.tutor-row:last-child { border-bottom: none; }
.tutor-row:hover { background: rgba(255,255,255,0.02); }
.tutor-rank {
  font-size: 20px;
  font-weight: 700;
  width: 36px;
  text-align: center;
  flex-shrink: 0;
}
.tutor-progress-bar {
  height: 6px;
  background: rgba(255,255,255,0.07);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 2px;
}
.tutor-progress-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--p9), var(--s9));
  transition: width 600ms cubic-bezier(.2,.8,.2,1);
}
/* Light theme adjustments for admin */
body[data-theme="light"] .admin-chip-green { color: #166534; }
body[data-theme="light"] .admin-chip-blue { color: #1e40af; }
body[data-theme="light"] .admin-session-row { border-bottom-color: rgba(15,23,42,0.08); }
body[data-theme="light"] .insight-chart-card { box-shadow: var(--shadow2); }
body[data-theme="light"] .tutor-row:hover { background: var(--p03); }
body[data-theme="light"] .tutor-progress-bar { background: rgba(15,23,42,0.07); }
/* Mobile adjustments for admin */
@media (max-width: 720px) {
  .admin-kpi-grid { grid-template-columns: 1fr; gap: 8px; }
  .admin-insight-row-inner { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .tutor-row { padding: 14px 16px; }
}
/* ── Profile avatar button ── */
.avatar-btn {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--s85));
  border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; color: #fff;
  flex-shrink: 0;
  transition: transform 150ms, box-shadow 150ms;
  padding: 0;
}
.avatar-btn:hover { transform: scale(1.07); box-shadow: 0 0 0 3px var(--p35); }

/* ── Bell icon button ── */
.icon-btn {
  position: relative;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--panel);
  border: 1px solid var(--border);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--text);
  transition: background 150ms, transform 150ms;
  padding: 0;
  flex-shrink: 0;
}
.icon-btn:hover { background: var(--p12); transform: scale(1.07); }

/* ── Notification badge ── */
.notif-badge {
  position: absolute;
  top: -3px; right: -3px;
  min-width: 17px; height: 17px;
  border-radius: 999px;
  background: #ef4444;
  color: #fff;
  font-size: 10px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  padding: 0 3px;
  border: 1.5px solid var(--bg);
  pointer-events: none;
}
.notif-badge.hidden { display: none; }

/* ── Announcement item ── */
.announce-item {
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  margin-bottom: 10px;
  background: var(--panel);
}
.announce-item.priority-important { border-color: rgba(245,158,11,0.5); background: rgba(245,158,11,0.06); }
.announce-item.priority-urgent    { border-color: rgba(239,68,68,0.5);  background: rgba(239,68,68,0.06); }
.announce-item-title { font-weight: 700; font-size: 14px; margin-bottom: 4px; }
.announce-item-body  { font-size: 13px; line-height: 1.55; white-space: pre-wrap; }
.announce-item-meta  { font-size: 11px; margin-top: 8px; opacity: 0.55; display:flex; gap:10px; flex-wrap:wrap; align-items:center; }
/* ============================================================
   MOBILE RESPONSIVE FIXES — 2026
   Addresses: header overflow, app sizing, calendar cramping,
   tab overflow, grid breakdowns, login card wrapping
   ============================================================ */

/* ── Viewport meta safety (CSS only) ── */
html { -webkit-text-size-adjust: 100%; }

/* ── Make main fill more of the screen on mobile ── */
@media (max-width: 600px) {
  main { padding: 12px 10px 48px; }
}

/* ── Header: shrink logo + prevent overflow ── */
.header-inner {
  flex-wrap: nowrap;
  overflow: hidden;
}
.header-left { flex: 1 1 auto; min-width: 0; overflow: hidden; }
.header-user { flex-shrink: 0; }

@media (max-width: 480px) {
  .logo {
    height: 36px !important;
    max-height: 36px !important;
  }
  .header-inner { padding: 10px 12px; gap: 10px; }
  /* Collapse theme toggle label on very small screens */
  .theme-toggle .label { display: none; }
  .theme-toggle { padding: 6px 8px; }
  /* Org badge: truncate long names */
  #orgBadge {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

@media (max-width: 360px) {
  .logo { height: 28px !important; max-height: 28px !important; }
  .header-inner { padding: 8px 10px; gap: 8px; }
}

/* ── Top + sub tabs: scroll horizontally instead of wrapping ── */
.top-tabs, .sub-tabs {
  flex-wrap: nowrap;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 2px; /* prevent clipping box-shadow */
  padding-top: 2px; /* prevent clipping hover translateY */
  gap: 8px;
}
.top-tabs::-webkit-scrollbar,
.sub-tabs::-webkit-scrollbar { display: none; }

@media (max-width: 600px) {
  .tab  { font-size: 13px; padding: 8px 13px; white-space: nowrap; flex-shrink: 0; }
  .subtab { font-size: 12px; padding: 6px 11px; white-space: nowrap; flex-shrink: 0; }
}

/* ── Login card buttons: stack vertically on tiny screens ── */
@media (max-width: 480px) {
  #loginCard { margin: 20px 10px !important; }
  /* Sign-in button row */
  #loginCard > div [style*="display:flex"][style*="flex-wrap:wrap"] {
    flex-direction: column;
  }
  #loginCard button { width: 100%; }
}

/* ── Generic .row: reduce min-width so it doesn't force overflow ── */
@media (max-width: 540px) {
  .row > * { min-width: 0 !important; flex: 1 1 100%; }
}

/* ── Calendar: tighter on small phones ── */
@media (max-width: 480px) {
  .calendar { gap: 4px; }
  .weekday { font-size: 9px; padding: 3px 0; letter-spacing: 0.02em; }
  .day {
    padding: 4px;
    min-height: 72px;
    border-radius: 12px;
  }
  .day-num { font-size: 11px; margin-bottom: 4px; }
  .session-pill, .group-pill, .event-pill {
    font-size: 9px;
    padding: 3px 5px;
    margin-top: 3px;
    border-radius: 6px;
  }
  .view-day-btn { font-size: 9px !important; padding: 2px 5px !important; }
}

/* ── Calendar header: prevent Prev/Next buttons from shrinking label ── */
.calendar-header { flex-wrap: nowrap; }
@media (max-width: 480px) {
  .calendar-header button { padding: 7px 10px; font-size: 12px; flex-shrink: 0; }
  #monthLabel { font-size: 15px !important; text-align: center; }
}

/* ── KPI controls row: stack on mobile ── */
@media (max-width: 640px) {
  .kpi-controls-row {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .kpi-controls-row .kpi-range-bar { justify-content: center; }
  .kpi-controls-row .kpi-edit-btn { justify-self: unset; align-self: flex-end; }
}

/* ── KPI range bar: scroll on mobile ── */
@media (max-width: 480px) {
  .kpi-range-bar { max-width: 100%; overflow-x: auto; }
}

/* ── Admin insight row: 1-col on very small screens ── */
@media (max-width: 480px) {
  .admin-insight-row-inner { grid-template-columns: 1fr !important; }
}

/* ── Mentor grid: 1-col below 480px ── */
@media (max-width: 480px) {
  .mentor-grid { grid-template-columns: 1fr !important; }
}

/* ── Modal: full-screen on very small devices ── */
@media (max-width: 480px) {
  .modal-backdrop { padding: 0; align-items: flex-end; }
  .modal {
    width: 100% !important;
    border-radius: 22px 22px 0 0;
    max-height: 92vh;
    overflow-y: auto;
  }
}

/* ── Modal actions: stack buttons on mobile ── */
@media (max-width: 480px) {
  .modal-actions { flex-direction: column; }
  .modal-actions button { width: 100%; }
}

/* ── Session grid (completed): 1-col on small screens ── */
@media (max-width: 480px) {
  .session-grid { grid-template-columns: 1fr !important; }
}

/* ── Cards: reduce padding on mobile ── */
@media (max-width: 480px) {
  .card { padding: 14px 12px; border-radius: 16px; }
}

/* ── Tutor row: compress on mobile ── */
@media (max-width: 480px) {
  .tutor-row { gap: 10px; padding: 12px 12px; }
  .tutor-rank { font-size: 16px; width: 28px; }
}

/* ── Prevent any fixed-width element from causing page-level overflow ── */
@media (max-width: 600px) {
  body { overflow-x: hidden; }
  main { overflow-x: hidden; }
}