/* ===========================================================
   AVEN AI · QUIZ  —  Design System
   GenZ Glassmorphism · Aurora gradient mesh · Light/Dark aware
=========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Manrope:wght@400;500;600;700;800&display=swap');

:root{
  --font-display:'Sora',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --font-body:'Manrope',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;

  /* Aurora palette */
  --violet:#7c3aed;
  --fuchsia:#ec4899;
  --cyan:#06b6d4;
  --lime:#a3e635;
  --amber:#f59e0b;
  --blue:#3b82f6;

  --grad-brand:linear-gradient(135deg,var(--violet) 0%,var(--fuchsia) 55%,var(--amber) 100%);
  --grad-brand-soft:linear-gradient(135deg,rgba(124,58,237,.15),rgba(236,72,153,.15));
  --grad-cta:linear-gradient(135deg,#7c3aed,#ec4899);

  /* Light theme (default) */
  --bg:#f3f2fb;
  --bg-blob-1:#c4b5fd;
  --bg-blob-2:#fbcfe8;
  --bg-blob-3:#a5f3fc;
  --surface:rgba(255,255,255,.62);
  --surface-solid:#ffffff;
  --surface-strong:rgba(255,255,255,.85);
  --border:rgba(255,255,255,.5);
  --border-soft:rgba(15,23,42,.08);
  --text:#161222;
  --text-dim:#5b5470;
  --text-faint:#8b85a0;
  --shadow:0 10px 40px -12px rgba(76,29,149,.25);
  --shadow-sm:0 4px 16px -4px rgba(76,29,149,.18);
  --danger:#e11d48;
  --success:#16a34a;
  --warn:#d97706;
  --radius-lg:26px;
  --radius-md:18px;
  --radius-sm:12px;
}

html[data-theme="dark"]{
  --bg:#0b0a14;
  --bg-blob-1:#4c1d95;
  --bg-blob-2:#831843;
  --bg-blob-3:#164e63;
  --surface:rgba(24,20,38,.6);
  --surface-solid:#161225;
  --surface-strong:rgba(28,23,45,.85);
  --border:rgba(255,255,255,.09);
  --border-soft:rgba(255,255,255,.08);
  --text:#f3f1fb;
  --text-dim:#b6afd1;
  --text-faint:#847d9e;
  --shadow:0 10px 40px -12px rgba(0,0,0,.55);
  --shadow-sm:0 4px 16px -4px rgba(0,0,0,.45);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  margin:0;
  min-height:100vh;
  font-family:var(--font-body);
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  transition:background .3s ease,color .3s ease;
  position:relative;
  overflow-x:hidden;
  padding-bottom:env(safe-area-inset-bottom);
}
h1,h2,h3,h4,.font-display{font-family:var(--font-display);letter-spacing:-0.02em}
p{line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
canvas,svg,iframe,video{max-width:100%}
button{font-family:inherit}
::selection{background:var(--violet);color:#fff}

/* ---------- Aurora background blobs (fixed, behind everything) ---------- */
.aurora-bg{position:fixed;inset:0;z-index:-1;overflow:hidden;background:var(--bg)}
.aurora-bg .blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55;animation:float 18s ease-in-out infinite}
.aurora-bg .b1{width:480px;height:480px;background:var(--bg-blob-1);top:-120px;left:-100px;animation-delay:0s}
.aurora-bg .b2{width:420px;height:420px;background:var(--bg-blob-2);top:20%;right:-140px;animation-delay:-6s}
.aurora-bg .b3{width:420px;height:420px;background:var(--bg-blob-3);bottom:-160px;left:20%;animation-delay:-11s}
.aurora-bg .grain{position:absolute;inset:0;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E")}
@keyframes float{
  0%,100%{transform:translate(0,0) scale(1)}
  50%{transform:translate(30px,-40px) scale(1.08)}
}
@media (prefers-reduced-motion:reduce){.aurora-bg .blob{animation:none}}

/* ---------- Glass surfaces ---------- */
.glass{
  background:var(--surface);
  backdrop-filter:blur(22px) saturate(160%);
  -webkit-backdrop-filter:blur(22px) saturate(160%);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
}
.glass-strong{
  background:var(--surface-strong);
  backdrop-filter:blur(26px) saturate(160%);
  -webkit-backdrop-filter:blur(26px) saturate(160%);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
}
.card{padding:24px;border-radius:var(--radius-md)}

/* ---------- Dashboard header (Welcome … / subtitle) ----------
   Headings/paragraphs otherwise keep the browser's default margins,
   which vary in size and can collapse unpredictably. Pin down the
   spacing right under the navbar so it's identical on every
   dashboard (student/teacher/admin) and the card that follows it. */
.dash-wrap>h2{margin:0 0 6px}
.dash-wrap>p.muted{margin:0 0 20px}

/* ---------- Layout helpers ---------- */
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.container-sm{max-width:720px;margin:0 auto;padding:0 20px}
.flex{display:flex}
.flex-col{display:flex;flex-direction:column}
.items-center{align-items:center}
.justify-between{justify-content:space-between}
.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-24{gap:24px}
.hidden{display:none !important}
.text-center{text-align:center}
.muted{color:var(--text-dim)}
.faint{color:var(--text-faint)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:14px;border:none;cursor:pointer;
  font-family:var(--font-display);font-weight:700;font-size:15px;
  transition:transform .15s ease,box-shadow .15s ease,opacity .15s ease;
  white-space:nowrap;
  min-height:44px;
  touch-action:manipulation;
  -webkit-tap-highlight-color:transparent;
  user-select:none;
}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 8px 24px -8px rgba(124,58,237,.55)}
.btn-primary:hover{box-shadow:0 10px 30px -6px rgba(124,58,237,.65);transform:translateY(-1px)}
.btn-ghost{background:var(--surface);color:var(--text);border:1px solid var(--border-soft)}
.btn-ghost:hover{background:var(--surface-strong)}
.btn-outline{background:transparent;border:1.5px solid var(--violet);color:var(--violet)}
.btn-danger{background:linear-gradient(135deg,#f43f5e,#e11d48);color:#fff}
.btn-sm{padding:9px 14px;font-size:13px;border-radius:10px;min-height:38px}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none !important}
.icon-btn{width:44px;height:44px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border-soft);background:var(--surface);cursor:pointer;color:var(--text);touch-action:manipulation;-webkit-tap-highlight-color:transparent}

/* ---------- Forms ---------- */
label{font-size:13px;font-weight:700;color:var(--text-dim);display:block;margin:14px 0 6px}
input,select,textarea{
  width:100%;
  /* 16px minimum stops iOS Safari from auto-zooming the viewport on focus */
  font-size:16px;
  padding:13px 14px;border-radius:12px;
  border:1.5px solid var(--border-soft);background:var(--surface-solid);color:var(--text);
  font-family:var(--font-body);transition:border-color .15s ease, box-shadow .15s ease;
  touch-action:manipulation;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--violet);box-shadow:0 0 0 4px rgba(124,58,237,.15)}
input::placeholder{color:var(--text-faint)}
.field-error{color:var(--danger);font-size:13px;margin-top:6px;min-height:16px}
.help-text{font-size:12px;color:var(--text-faint);margin-top:4px}

/* ---------- Badges / pills ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:700}
.badge-live{background:rgba(22,163,74,.15);color:var(--success)}
.badge-upcoming{background:rgba(59,130,246,.15);color:var(--blue)}
.badge-expired{background:rgba(107,114,128,.18);color:var(--text-faint)}
.badge-role-student{background:rgba(6,182,212,.15);color:#0891b2}
.badge-role-teacher{background:rgba(245,158,11,.15);color:#b45309}
.badge-role-admin{background:rgba(236,72,153,.15);color:#be185d}
.dot{width:7px;height:7px;border-radius:50%;background:currentColor;display:inline-block}

/* ---------- Nav ---------- */
.navbar{position:sticky;top:0;z-index:50;padding:14px 0;padding-top:max(14px, env(safe-area-inset-top))}
.navbar-inner{
  max-width:1180px;margin:0 auto;padding:10px 18px;border-radius:20px;
  display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:800;font-size:18px}
.brand img{height:30px;width:auto}
.brand .tag{font-size:10px;font-weight:700;color:#fff;background:var(--grad-cta);padding:2px 8px;border-radius:999px;letter-spacing:.04em}
.nav-links{display:flex;gap:26px;align-items:center;font-weight:600;font-size:14px}
.nav-links a{color:var(--text-dim)}
.nav-links a:hover{color:var(--text)}

/* ---------- Nav hamburger (dashboard header actions collapse on narrow screens) ---------- */
.navbar-inner{position:relative}
.nav-hamburger{display:none;background:var(--surface-solid);border:1.5px solid var(--border-soft);border-radius:10px;width:42px;height:42px;align-items:center;justify-content:center;font-size:19px;cursor:pointer;color:var(--text);flex-shrink:0;touch-action:manipulation;-webkit-tap-highlight-color:transparent}
.navbar-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
@media (max-width:760px){
  .nav-hamburger{display:inline-flex}
  .navbar-actions{
    display:none;position:absolute;top:calc(100% + 8px);right:0;left:0;
    flex-direction:column;align-items:stretch;gap:8px;padding:14px;
    background:var(--surface-solid);border:1px solid var(--border-soft);border-radius:16px;
    box-shadow:0 16px 32px -12px rgba(0,0,0,.3);z-index:60;
  }
  .navbar-actions.open{display:flex}
  .navbar-actions .btn,.navbar-actions .badge{width:100%;justify-content:center;text-align:center}
  .navbar-actions .theme-toggle{align-self:center}
}

/* ---------- Theme toggle ---------- */
.theme-toggle{width:44px;height:44px;border-radius:50%;border:1px solid var(--border-soft);background:var(--surface);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-size:18px;touch-action:manipulation;-webkit-tap-highlight-color:transparent}

/* ---------- Utility text gradient ---------- */
.text-grad{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Tables ---------- */
table{width:100%;border-collapse:collapse}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border-soft);font-size:14px}
th{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-faint);font-weight:700}
tr:last-child td{border-bottom:none}
.table-wrap{overflow-x:auto;border-radius:var(--radius-md)}

/* ---------- Progress ---------- */
.progress{height:9px;background:var(--border-soft);border-radius:999px;overflow:hidden}
.progress > div{height:100%;background:var(--grad-cta);transition:width .5s ease}

/* ---------- Modal ---------- */
.modal-overlay{position:fixed;inset:0;background:rgba(10,8,20,.55);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:200;padding:20px}
.modal-box{width:100%;max-width:440px;max-height:90vh;overflow-y:auto}

/* ---------- Toast ---------- */
#toast-stack{position:fixed;bottom:20px;right:20px;z-index:400;display:flex;flex-direction:column;gap:10px;max-width:340px}
.toast{padding:14px 18px;border-radius:14px;font-size:14px;font-weight:600;animation:toastin .2s ease}
.toast.ok{background:linear-gradient(135deg,#16a34a,#22c55e);color:#fff}
.toast.err{background:linear-gradient(135deg,#e11d48,#f43f5e);color:#fff}
.toast.info{background:linear-gradient(135deg,#7c3aed,#3b82f6);color:#fff}
@keyframes toastin{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}

/* ---------- Loader ---------- */
.spinner{width:22px;height:22px;border-radius:50%;border:3px solid rgba(124,58,237,.2);border-top-color:var(--violet);animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.skeleton{background:linear-gradient(90deg,var(--border-soft) 25%,rgba(124,58,237,.12) 50%,var(--border-soft) 75%);background-size:200% 100%;animation:shimmer 1.4s infinite;border-radius:10px}
@keyframes shimmer{to{background-position:-200% 0}}

/* ---------- Stat card ---------- */
.stat-card{padding:20px;border-radius:var(--radius-md)}
.stat-card .num{font-family:var(--font-display);font-size:28px;font-weight:800}
.stat-card .lbl{font-size:12px;color:var(--text-faint);font-weight:700;text-transform:uppercase;letter-spacing:.04em}

/* ---------- Footer ---------- */
.site-footer{padding:50px 0 30px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.footer-grid h4{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-faint);margin-bottom:14px}
.footer-grid ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-grid a{color:var(--text-dim);font-size:14px}
.footer-grid a:hover{color:var(--violet)}
.footer-bottom{margin-top:36px;padding-top:22px;border-top:1px solid var(--border-soft);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--text-faint)}

@media (max-width:860px){
  .nav-links{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr}
}

/* ---------- Empty states & insight boxes (shared across dashboards) ---------- */
.empty-note{padding:24px;text-align:center;color:var(--text-faint);font-size:14px}
.ai-box{padding:14px;border-radius:12px;color:#fff}
.ai-weak{background:#dc2626}
.ai-strong{background:#16a34a}

/* ---------- Bulk-action checkboxes in tables ---------- */
td input[type="checkbox"], th input[type="checkbox"]{width:18px;height:18px;accent-color:var(--violet)}

/* ---------- Notifications bell ---------- */
.notif-bell-wrap{position:relative;display:inline-block}
#notifBell{position:relative;background:var(--surface-solid);border:1px solid var(--border-soft);border-radius:12px;width:40px;height:40px;font-size:17px;cursor:pointer;display:flex;align-items:center;justify-content:center}
.notif-badge{position:absolute;top:-4px;right:-4px;background:#e11d48;color:#fff;font-size:10px;font-weight:800;border-radius:999px;min-width:16px;height:16px;padding:0 4px;display:flex;align-items:center;justify-content:center}
.notif-panel{position:absolute;top:48px;right:0;width:320px;max-height:420px;overflow-y:auto;background:var(--surface-solid);border:1px solid var(--border-soft);border-radius:14px;box-shadow:0 12px 30px rgba(0,0,0,.18);z-index:500}
.notif-panel-head{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-bottom:1px solid var(--border-soft);font-size:14px}
.notif-item{padding:12px 14px;border-bottom:1px solid var(--border-soft);cursor:pointer}
.notif-item:last-child{border-bottom:none}
.notif-item.unread{background:rgba(124,58,237,.08)}
.notif-item.unread .notif-title::before{content:'●';color:#7c3aed;margin-right:6px;font-size:10px}
.notif-title{font-weight:700;font-size:13px}
.notif-msg{font-size:12px;color:var(--text-dim);margin-top:2px;white-space:pre-wrap}
.notif-meta{font-size:11px;color:var(--text-faint);margin-top:6px}
.notif-empty{padding:24px;text-align:center;color:var(--text-faint);font-size:13px}
.btn-link{background:none;border:none;color:#7c3aed;font-weight:700;font-size:12px;cursor:pointer;padding:0}

/* ===========================================================
   Live Quiz Responses viewer — redesigned
=========================================================== */
.lr-head{display:flex;justify-content:space-between;align-items:flex-start;padding-bottom:12px;margin-bottom:12px;border-bottom:1px solid var(--border-soft)}
.lr-head-title{font-family:var(--font-display);font-weight:800;font-size:17px}
.lr-head-meta{color:var(--text-faint);font-size:12px;margin-top:3px}
.lr-players{display:flex;flex-direction:column;gap:10px}
.lr-player{border:1px solid var(--border-soft);border-radius:14px;overflow:hidden;background:var(--surface-solid)}
.lr-player-head{display:flex;align-items:center;gap:12px;width:100%;padding:12px 14px;background:transparent;border:none;cursor:pointer;text-align:left;color:var(--text);font-family:inherit}
.lr-rank{width:30px;height:30px;border-radius:50%;background:var(--grad-cta);color:#fff;font-weight:800;font-size:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.lr-name{flex:1;font-weight:700;font-size:14px;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lr-email{display:block;font-weight:400;font-size:11px;color:var(--text-faint)}
.lr-acc{font-size:11px;font-weight:800;padding:4px 9px;border-radius:999px;flex-shrink:0}
.lr-acc.good{background:rgba(34,197,94,.15);color:#16a34a}
.lr-acc.mid{background:rgba(245,158,11,.15);color:#b45309}
.lr-acc.low{background:rgba(239,68,68,.15);color:#dc2626}
.lr-score{font-family:var(--font-display);font-weight:800;font-size:14px;flex-shrink:0}
.lr-caret{color:var(--text-faint);transition:transform .2s ease;flex-shrink:0}
.lr-player.open .lr-caret{transform:rotate(180deg)}
.lr-player-body{max-height:0;overflow:hidden;transition:max-height .25s ease}
.lr-player.open .lr-player-body{max-height:4000px}
.lr-stat-row{display:flex;gap:14px;padding:10px 14px;font-size:12px;font-weight:700;color:var(--text-dim);border-top:1px solid var(--border-soft);flex-wrap:wrap}
.lr-q{display:flex;gap:10px;padding:12px 14px;border-top:1px solid var(--border-soft)}
.lr-q.is-correct{background:rgba(34,197,94,.05)}
.lr-q.is-wrong{background:rgba(239,68,68,.05)}
.lr-q-num{font-family:var(--font-display);font-weight:800;font-size:12px;color:var(--text-faint);flex-shrink:0;width:26px}
.lr-q-body{flex:1;min-width:0}
.lr-q-text{font-size:13px;font-weight:600;margin-bottom:8px;line-height:1.4}
.lr-q-answers{display:flex;flex-direction:column;gap:5px}
.lr-answer-line{display:flex;align-items:baseline;gap:8px;font-size:12.5px}
.lr-tag{color:var(--text-faint);font-weight:700;flex-shrink:0;width:100px}
.lr-value{font-weight:700}
.lr-value.correct{color:#16a34a}
.lr-value.wrong{color:#dc2626}
.lr-value.blank{color:var(--text-faint);font-weight:400}
.lr-points{display:inline-block;margin-top:6px;font-size:11px;font-weight:800;color:#7c3aed;background:var(--grad-brand-soft);padding:2px 8px;border-radius:999px}
.lr-explain{margin-top:6px;font-size:12px;color:var(--text-dim);background:var(--border-soft);padding:6px 10px;border-radius:8px}

/* ===========================================================
   Digital countdown clock — used on host & player live-quiz screens
=========================================================== */
.digital-clock{font-family:var(--font-display);font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:.04em;font-size:20px;padding:6px 14px;border-radius:10px;background:var(--surface-solid);border:1.5px solid var(--border-soft);color:var(--text);display:inline-flex;align-items:center;gap:6px}
.digital-clock.warn{color:var(--danger);border-color:var(--danger)}
.digital-clock .dc-dot{width:7px;height:7px;border-radius:50%;background:#16a34a;animation:dcPulse 1s ease-in-out infinite}
.digital-clock.warn .dc-dot{background:var(--danger)}
@keyframes dcPulse{0%,100%{opacity:1}50%{opacity:.3}}

/* ===========================================================
   Terms / rules dialog content (used inside openDialog())
=========================================================== */
.terms-rules{margin:0;padding-left:20px;font-size:13.5px;line-height:1.85;color:var(--text-dim)}
.terms-rules b{color:var(--text)}
.terms-score-example{background:var(--grad-brand-soft);border-radius:12px;padding:12px 14px;margin-top:12px;font-size:12.5px;color:var(--text-dim)}

/* ===========================================================
   Create-your-own-quiz (student) cards
=========================================================== */
.genq-card{padding:18px;border-radius:14px}
.genq-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
@media (max-width:560px){.genq-form-grid{grid-template-columns:1fr}}
.genq-quiz-item{padding:14px 16px;border-radius:14px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.genq-quiz-item .gq-title{font-weight:700}
.genq-quiz-item .gq-meta{font-size:12px;color:var(--text-faint);margin-top:2px}
.genq-tag{font-size:11px;font-weight:800;padding:3px 9px;border-radius:999px;background:var(--grad-brand-soft);color:#7c3aed}

/* ===========================================================
   PWA — Native-style bottom tab bar (mobile & tablet only)
   Order: Home · Quizzes · Live · Generate · Result · Profile
   Profile sits on the far right, visually separated like a native
   app's account tab.
=========================================================== */
.bottom-nav{
  position:fixed;left:0;right:0;bottom:0;z-index:150;
  display:none;align-items:stretch;
  background:var(--surface-strong);
  backdrop-filter:blur(24px) saturate(180%);
  -webkit-backdrop-filter:blur(24px) saturate(180%);
  border-top:1px solid var(--border-soft);
  box-shadow:0 -10px 34px -16px rgba(76,29,149,.35);
  padding:8px 6px calc(8px + env(safe-area-inset-bottom));
}
.bn-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  min-width:0;position:relative;
  color:var(--text-faint);text-decoration:none;
  font-family:var(--font-display);font-weight:700;font-size:10px;letter-spacing:.01em;
  transition:color .2s ease;
  touch-action:manipulation;-webkit-tap-highlight-color:transparent;user-select:none;
}
.bn-item-profile{margin-left:2px;padding-left:6px;border-left:1px solid var(--border-soft)}
.bn-icon-wrap{
  width:42px;height:26px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  transition:background .25s cubic-bezier(.34,1.56,.64,1),transform .25s cubic-bezier(.34,1.56,.64,1);
}
.bn-svg{width:22px;height:22px;transition:stroke .2s ease,stroke-width .2s ease}
.bn-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;transition:color .2s ease}
.bn-item.active{color:#7c3aed}
.bn-item.active .bn-icon-wrap{background:var(--grad-brand-soft);transform:scale(1.05)}
.bn-item.active .bn-svg{stroke-width:2.15}
.bn-item:active .bn-icon-wrap{transform:scale(.88)}

@media (max-width:1024px){
  .bottom-nav{display:flex}
  body.has-bottom-nav{padding-bottom:calc(66px + env(safe-area-inset-bottom)) !important}
  #toast-stack{bottom:calc(80px + env(safe-area-inset-bottom)) !important;left:12px;right:12px;max-width:none}

  /* Compact the top bar so the app reads "native": bottom tabs carry the
     primary navigation, so the header just needs branding + quick actions. */
  .navbar{padding:9px 0;padding-top:max(9px, env(safe-area-inset-top))}
  .navbar-inner{padding:8px 14px;border-radius:16px}
  .brand{font-size:15px;gap:7px}
  .brand img{height:24px}
  .brand .tag{display:none}
}

/* ---------- Install-app toast ---------- */
.install-toast{
  position:fixed;left:12px;right:12px;bottom:calc(78px + env(safe-area-inset-bottom));z-index:160;
  display:flex;align-items:center;gap:10px;
  background:var(--surface-strong);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--border-soft);border-radius:16px;padding:12px;box-shadow:var(--shadow);
  animation:toastin .2s ease;
}
.install-toast-icon{font-size:20px;flex-shrink:0}
.install-toast-text{flex:1;font-size:12.5px;font-weight:600;color:var(--text)}
.install-toast-btn{background:var(--grad-cta);color:#fff;border:none;padding:8px 14px;border-radius:10px;font-weight:700;font-size:12px;cursor:pointer;flex-shrink:0}
.install-toast-close{background:none;border:none;color:var(--text-faint);font-size:14px;cursor:pointer;padding:4px;flex-shrink:0}
@media (min-width:1025px){
  .install-toast{left:auto;right:20px;bottom:20px;max-width:340px}
}

/* ===========================================================
   Native-app top title bar — centered "Aven AI", zero buttons.
   Replaces the old navbar/top-bar chrome on mobile/tablet, since
   every action now lives in the bottom tabs or the Profile sheet.
=========================================================== */
.app-topbar{
  display:none;position:sticky;top:0;z-index:140;
  align-items:center;justify-content:center;
  height:44px;padding-top:env(safe-area-inset-top);
  background:var(--surface-strong);
  backdrop-filter:blur(22px) saturate(180%);
  -webkit-backdrop-filter:blur(22px) saturate(180%);
  border-bottom:1px solid var(--border-soft);
}
.app-topbar-title{font-family:var(--font-display);font-weight:800;font-size:15px;letter-spacing:.01em;color:var(--text)}

@media (max-width:1024px){
  .app-topbar{display:flex}
  .navbar,.top-bar{display:none !important}
}

/* ===========================================================
   Profile bottom sheet — account info, dashboard, notifications,
   password, theme, logout. Identical on every page.
=========================================================== */
.profile-overlay{
  position:fixed;inset:0;z-index:200;
  background:rgba(10,8,20,.5);backdrop-filter:blur(2px);
  opacity:0;transition:opacity .25s ease;
  display:flex;align-items:flex-end;justify-content:center;
}
.profile-overlay.open{opacity:1}
.profile-sheet{
  width:100%;max-width:520px;max-height:82vh;overflow-y:auto;
  background:var(--surface-strong);
  border-radius:22px 22px 0 0;
  border:1px solid var(--border-soft);border-bottom:none;
  box-shadow:0 -20px 50px -20px rgba(0,0,0,.4);
  padding:10px 18px calc(18px + env(safe-area-inset-bottom));
  transform:translateY(100%);transition:transform .3s cubic-bezier(.32,.72,0,1);
}
.profile-overlay.open .profile-sheet{transform:translateY(0)}
.ps-handle{width:36px;height:4px;border-radius:999px;background:var(--border-soft);margin:0 auto 14px}
.ps-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.ps-avatar{
  width:48px;height:48px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--grad-cta);color:#fff;font-weight:800;font-size:16px;font-family:var(--font-display);
}
.ps-id{flex:1;min-width:0}
.ps-name{font-weight:800;font-family:var(--font-display);font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ps-role{font-size:12.5px;color:var(--text-faint);font-weight:600}
.ps-close{background:var(--surface-solid);border:1px solid var(--border-soft);border-radius:50%;width:34px;height:34px;flex-shrink:0;cursor:pointer;color:var(--text-dim);font-size:14px}
.ps-menu{display:flex;flex-direction:column;gap:4px;padding-top:8px;border-top:1px solid var(--border-soft)}
.ps-row{
  display:flex;align-items:center;gap:12px;width:100%;
  background:none;border:none;text-align:left;text-decoration:none;
  padding:13px 6px;border-radius:12px;cursor:pointer;
  font-weight:700;font-size:14.5px;color:var(--text);
  touch-action:manipulation;-webkit-tap-highlight-color:transparent;
}
.ps-row:active{background:var(--grad-brand-soft)}
.ps-row span:not(.ps-badge):not(.ps-switch){flex:1}
.ps-ic{width:19px;height:19px;flex-shrink:0;color:#7c3aed}
.ps-chev{width:16px;height:16px;flex-shrink:0;color:var(--text-faint)}
.ps-badge{background:var(--danger);color:#fff;font-size:11px;font-weight:800;padding:2px 7px;border-radius:999px;flex-shrink:0}
.ps-danger{color:var(--danger)}
.ps-danger .ps-ic{color:var(--danger)}
.ps-panel{padding:4px 6px 14px 37px}
.ps-panel input{margin-top:0}
.ps-switch{width:40px;height:24px;border-radius:999px;background:var(--border-soft);position:relative;flex-shrink:0;transition:background .2s ease}
.ps-switch-knob{position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.3);transition:transform .2s ease}
.ps-switch.on{background:var(--grad-cta)}
.ps-switch.on .ps-switch-knob{transform:translateX(16px)}
.ps-notif{padding:10px;border-radius:10px;margin-bottom:6px;background:var(--surface-solid);border:1px solid var(--border-soft);cursor:pointer}
.ps-notif.unread{border-color:#7c3aed}
.ps-notif-title{font-weight:700;font-size:13px}
.ps-notif-msg{font-size:12.5px;color:var(--text-dim);margin-top:2px}
.ps-notif-meta{font-size:11px;color:var(--text-faint);margin-top:4px}

/* ===========================================================
   Native-app boot polish
=========================================================== */
@keyframes avenFadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
body{animation:avenFadeIn .35s ease}

#avenSplash{
  position:fixed;inset:0;z-index:9999;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--bg);
  transition:opacity .35s ease,visibility .35s ease;
}
#avenSplash img{width:76px;height:76px;border-radius:22px;box-shadow:var(--shadow)}
#avenSplash .splash-name{font-family:var(--font-display);font-weight:800;font-size:17px;color:var(--text)}
#avenSplash .splash-dot{width:34px;height:3px;border-radius:999px;background:var(--border-soft);overflow:hidden;position:relative}
#avenSplash .splash-dot::after{content:'';position:absolute;inset:0;width:40%;background:var(--grad-cta);border-radius:999px;animation:splashSlide 1s ease-in-out infinite}
@keyframes splashSlide{0%{transform:translateX(-100%)}100%{transform:translateX(250%)}}
#avenSplash.hide{opacity:0;visibility:hidden;pointer-events:none}