/* ==========================================================================
   EduXperti Design System v3.0 — PREMIUM
   Typography-led, text-only (no icons), rich visual polish.
   Royal blue #155EEF + Navy + White. Smooth restrained motion.
   ========================================================================== */

:root {
  --primary: #FF6500;
  --primary-hover: #E55A00;
  --primary-dark: #CC5200;
  --primary-soft: #FFF3EB;
  --primary-ring: rgba(255, 101, 0, .28);
  --navy: #07183F;
  --navy-deep: #07183F;
  --navy-soft: #E8EEF9;
  --white: #FFFFFF;
  --surface: #F6F8FC;
  --surface-2: #EEF2F9;
  --text: #101828;
  --text-muted: #475467;
  --text-light: #667085;
  --border: #E4E7EC;
  --border-strong: #D0D5DD;
  --success: #12B76A;
  --success-soft: #E6F9EF;
  --warning: #F79009;
  --warning-soft: #FFF4E5;
  --danger: #D92D20;
  --danger-soft: #FDECEA;
  --gold: #F5B700;
  --gold-soft: #FFF8E1;
  --gold-deep: #8A6100;

  --font-head: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --s1: 4px; --s2: 8px; --s3: 12px; --s4: 16px; --s5: 24px; --s6: 32px;
  --s7: 48px; --s8: 64px; --s9: 96px;

  --r-sm: 8px; --r-card: 16px; --r-input: 12px; --r-pill: 999px; --r-modal: 20px;

  --shadow-sm: 0 2px 8px rgba(18, 52, 107, .06);
  --shadow: 0 8px 24px rgba(18, 52, 107, .08);
  --shadow-lg: 0 16px 40px rgba(18, 52, 107, .12);
  --shadow-hover: 0 14px 32px rgba(18, 52, 107, .14);

  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --ease-enter: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-exit: cubic-bezier(0.4, 0, 1, 1);
  --duration-quick: 150ms;
  --duration-standard: 220ms;
  --duration-panel: 300ms;
  --duration-page: 280ms;
}

[data-theme="dark"] {
  --primary: #4C8DFF;
  --primary-hover: #6FA3FF;
  --primary-soft: rgba(76, 141, 255, .14);
  --primary-ring: rgba(76, 141, 255, .35);
  --navy: #D6DEEF;
  --navy-deep: #0A1F44;
  --navy-soft: rgba(76, 141, 255, .1);
  --white: #132E5E;
  --surface: #0A1F44;
  --surface-2: #10294F;
  --text: #F2F4F7;
  --text-muted: #C5CEE0;
  --text-light: #98A2B8;
  --border: rgba(255, 255, 255, .12);
  --border-strong: rgba(255, 255, 255, .2);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);
  --shadow: 0 8px 24px rgba(0, 0, 0, .35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, .45);
  --shadow-hover: 0 14px 32px rgba(0, 0, 0, .5);
}

/* ============ BASE ============ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
html, body { overflow-x: clip; }
@supports not (overflow: clip) { html, body { overflow-x: hidden; } }
body {
  margin: 0; font-family: var(--font-body); font-size: 16px; line-height: 1.6;
  color: var(--text); background: var(--surface);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  transition: background-color var(--duration-standard) var(--ease-standard),
              color var(--duration-standard) var(--ease-standard);
}
h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.2; letter-spacing: -0.02em; color: var(--navy); margin: 0 0 var(--s3); }
[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3, [data-theme="dark"] h4 { color: var(--text); }
h1 { font-size: 30px; font-weight: 800; }
h2 { font-size: 25px; font-weight: 700; }
h3 { font-size: 20px; font-weight: 700; }
h4 { font-size: 17px; font-weight: 600; }
.hero-h { font-size: 34px; font-weight: 800; line-height: 1.12; letter-spacing: -0.03em; }
.stat-big { font-size: 36px; font-weight: 800; font-family: var(--font-head); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; line-height: 1.1; }
p { margin: 0 0 var(--s4); max-width: 68ch; }
a { color: var(--primary); text-decoration: none; transition: color var(--duration-quick); }
a:hover { color: var(--primary-hover); }
img { max-width: 100%; height: auto; display: block; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; font-size: 16px; color: var(--text); }
::selection { background: var(--primary-soft); }

@media (min-width: 768px) {
  h1 { font-size: 38px; } h2 { font-size: 30px; } h3 { font-size: 22px; }
  .hero-h { font-size: 44px; } .stat-big { font-size: 42px; }
}
@media (min-width: 1024px) {
  h1 { font-size: 46px; } h2 { font-size: 36px; } h3 { font-size: 23px; }
  .hero-h { font-size: 56px; } .stat-big { font-size: 48px; }
  body { font-size: 17px; }
}

:focus-visible { outline: 3px solid var(--primary-ring); outline-offset: 2px; border-radius: 6px; }
.skip-link { position: absolute; left: -9999px; top: 0; z-index: 9999; background: var(--navy-deep); color: #fff; padding: var(--s3) var(--s4); border-radius: 0 0 var(--r-input) 0; font-weight: 600; }
.skip-link:focus { left: 0; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding-left: var(--s4); padding-right: var(--s4); }
@media (min-width: 768px) { .container { padding-left: var(--s5); padding-right: var(--s5); } }
.container-app { max-width: 1320px; }
.section { padding: var(--s7) 0; }
@media (min-width: 768px) { .section { padding: 72px 0; } }
@media (min-width: 1024px) { .section { padding: var(--s9) 0; } }
.section-intro { max-width: 62ch; color: var(--text-muted); font-size: 17px; margin: 0 0 var(--s6); }
.num { font-variant-numeric: tabular-nums; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s2);
  min-height: 48px; padding: var(--s3) var(--s5);
  border-radius: var(--r-pill); border: 1.5px solid transparent;
  font-weight: 600; font-size: 16px; line-height: 1.4; letter-spacing: -0.01em;
  transition: transform var(--duration-quick) var(--ease-standard),
              box-shadow var(--duration-standard) var(--ease-standard),
              background-color var(--duration-quick) var(--ease-standard),
              border-color var(--duration-quick) var(--ease-standard);
  text-decoration: none; white-space: nowrap; user-select: none;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.btn-primary {
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: #fff; box-shadow: 0 4px 14px rgba(21, 94, 239, .28);
}
.btn-primary:hover { color: #fff; box-shadow: 0 8px 22px rgba(21, 94, 239, .36); }
.btn-outline { background: var(--white); color: var(--primary); border-color: var(--border-strong); box-shadow: var(--shadow-sm); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary-hover); background: var(--primary-soft); }
.btn-ghost { background: transparent; color: var(--navy); }
[data-theme="dark"] .btn-ghost { color: var(--text); }
.btn-ghost:hover { background: var(--primary-soft); color: var(--primary); }
/* Navbar buttons: smooth hover, no bubble/jarring active state */
.nav-actions .btn,
.nav-actions .theme-toggle-text {
  transition: background-color .18s ease, color .18s ease, box-shadow .18s ease;
  -webkit-tap-highlight-color: transparent;
}
.nav-actions .btn:hover,
.nav-actions .theme-toggle-text:hover {
  background: var(--primary-soft);
  color: var(--primary);
  transform: none;
  box-shadow: none;
}
.nav-actions .btn:active,
.nav-actions .theme-toggle-text:active {
  transform: none;
  background: var(--primary-soft);
  box-shadow: inset 0 0 0 1px rgba(21,94,239,.15);
}
.nav-actions .btn:focus-visible,
.nav-actions .theme-toggle-text:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.theme-toggle-text {
  border: 1.5px solid var(--border-strong);
  background: var(--white);
  color: var(--navy);
  border-radius: var(--r-pill);
  padding: 8px 18px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}
.theme-toggle-text:hover { border-color: var(--primary); }
[data-theme="dark"] .theme-toggle-text { background: #13233D; color: #E2E8F0; border-color: #1E3A5F; }
.btn-danger { background: var(--danger); color: #fff; box-shadow: 0 4px 14px rgba(217, 45, 32, .25); }
.btn-gold { background: linear-gradient(180deg, #FFC933 0%, var(--gold) 100%); color: #3d2c00; font-weight: 700; box-shadow: 0 4px 14px rgba(245, 183, 0, .3); }
.btn-sm { min-height: 40px; padding: var(--s2) var(--s4); font-size: 14px; }
.btn-lg { min-height: 56px; padding: var(--s4) var(--s6); font-size: 17px; }
.btn-block { width: 100%; }

/* ============ FORMS ============ */
.field { margin-bottom: var(--s4); }
.field label { display: block; font-weight: 600; font-size: 15px; margin-bottom: var(--s2); color: var(--navy); letter-spacing: -0.01em; }
[data-theme="dark"] .field label { color: var(--text); }
.input, .select, .textarea {
  width: 100%; min-height: 52px; padding: var(--s3) var(--s4);
  border: 1.5px solid var(--border); border-radius: var(--r-input);
  background: var(--white); color: var(--text);
  transition: border-color var(--duration-quick) var(--ease-standard),
              box-shadow var(--duration-quick) var(--ease-standard);
  box-shadow: inset 0 1px 3px rgba(18, 52, 107, .04);
}
.input:hover, .select:hover, .textarea:hover { border-color: var(--border-strong); }
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-ring), inset 0 1px 3px rgba(18, 52, 107, .04);
}
.input-error { border-color: var(--danger) !important; }
.input-error:focus { box-shadow: 0 0 0 4px rgba(217, 45, 32, .15) !important; }
.field .hint { font-size: 13px; color: var(--text-muted); margin-top: 6px; }
.field .error-text { font-size: 13px; color: var(--danger); margin-top: 6px; font-weight: 600; }
.textarea { min-height: 120px; resize: vertical; }
.check, .radio { display: flex; align-items: flex-start; gap: var(--s3); cursor: pointer; min-height: 44px; font-size: 15px; }
.check input, .radio input { width: 22px; height: 22px; accent-color: var(--primary); margin-top: 2px; flex-shrink: 0; cursor: pointer; }

/* Chips */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: var(--r-pill);
  font-size: 13px; font-weight: 700; letter-spacing: .02em; line-height: 1.4;
  background: var(--primary-soft); color: var(--primary);
  border: 1px solid rgba(21, 94, 239, .18);
  transition: transform var(--duration-quick);
}
.chip-success { background: var(--success-soft); color: #0A7A44; border-color: rgba(18, 183, 106, .25); }
.chip-warning { background: var(--warning-soft); color: #B54708; border-color: rgba(247, 144, 9, .25); }
.chip-danger { background: var(--danger-soft); color: var(--danger); border-color: rgba(217, 45, 32, .25); }
.chip-gold { background: var(--gold-soft); color: var(--gold-deep); border-color: rgba(245, 183, 0, .35); }
.chip-neutral { background: var(--surface-2); color: var(--text-muted); border-color: var(--border); }

/* ============ CARDS ============ */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-sm);
  padding: var(--s5);
  transition: transform var(--duration-standard) var(--ease-standard),
              box-shadow var(--duration-standard) var(--ease-standard),
              border-color var(--duration-quick) var(--ease-standard);
}
.card-hover:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: var(--border-strong); }
@media (hover: none) { .card-hover:hover { transform: none; } }
.card-title { font-size: 19px; font-weight: 700; margin-bottom: var(--s2); letter-spacing: -0.015em; }
.card-text { color: var(--text-muted); font-size: 15px; margin-bottom: var(--s4); }
.card-accent { border-top: 3px solid var(--primary); }
.card-gold { border-top: 3px solid var(--gold); }

.stat-card { position: relative; overflow: hidden; }
.stat-card::after { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--primary), var(--primary-hover)); opacity: 0; transition: opacity var(--duration-standard); }
.stat-card:hover::after { opacity: 1; }
.stat-card .stat-value { font-size: 34px; font-weight: 800; font-family: var(--font-head); color: var(--navy); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; line-height: 1.1; }
[data-theme="dark"] .stat-card .stat-value { color: var(--text); }
.stat-card .stat-label { font-size: 14px; color: var(--text-muted); font-weight: 500; margin-top: 4px; }
.stat-card .stat-sub { font-size: 13px; color: var(--text-light); margin-top: 2px; }

.grid { display: grid; gap: var(--s4); }
.grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid { gap: var(--s5); }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ============ NAVBAR ============ */
.site-nav {
  position: sticky; top: 12px; z-index: 100;
  margin: 0 auto; max-width: 1200px;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(20px) saturate(1.4); -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border: 1px solid rgba(228, 231, 236, .8); border-radius: var(--r-pill);
  box-shadow: 0 8px 32px rgba(18, 52, 107, .1);
  transition: box-shadow var(--duration-standard);
}
[data-theme="dark"] .site-nav { background: rgba(19, 46, 94, .92); border-color: rgba(255,255,255,.1); }
.site-nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; padding: 0 var(--s5); gap: var(--s4); }
.brand-text { font-family: var(--font-head); font-weight: 800; font-size: 22px; color: var(--navy); letter-spacing: -0.03em; text-decoration: none; }
.brand-text em { font-style: normal; color: var(--primary); }
[data-theme="dark"] .brand-text { color: var(--text); }
.nav-links { display: none; align-items: center; gap: 4px; }
.nav-links a { padding: 10px 18px; border-radius: var(--r-pill); color: var(--navy); font-weight: 600; font-size: 15px; transition: all var(--duration-quick); }
[data-theme="dark"] .nav-links a { color: var(--text); }
.nav-links a:hover { background: var(--primary-soft); color: var(--primary); }
.nav-links a.active { background: var(--primary); color: #fff; box-shadow: 0 2px 8px rgba(21,94,239,.3); }
@media (min-width: 900px) { .nav-links { display: flex; } }
.nav-actions { display: flex; align-items: center; gap: var(--s2); margin-left: auto; }
.hamburger { display: inline-flex; }
@media (min-width: 900px) { .hamburger { display: none; } }
@media (max-width: 899px) {
  .nav-actions .btn:not(.hamburger) { display: none; }
  .site-nav { margin: 0 var(--s3); }
  .site-nav-inner { padding: 0 var(--s4); height: 60px; }
}
.theme-toggle-text {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--r-pill);
  padding: 10px 18px; font-size: 14px; font-weight: 600; color: var(--text-muted);
  min-height: 44px; cursor: pointer; transition: all var(--duration-quick); white-space: nowrap;
}
.theme-toggle-text:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }

/* Drawer */
.drawer-backdrop { position: fixed; inset: 0; background: rgba(10, 31, 68, .5); backdrop-filter: blur(4px); opacity: 0; pointer-events: none; transition: opacity var(--duration-standard) var(--ease-standard); z-index: 198; }
.drawer-backdrop.open { opacity: 1; pointer-events: auto; }
.drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(360px, 90vw); background: var(--white); z-index: 199; transform: translateX(105%); transition: transform var(--duration-panel) var(--ease-enter); padding: var(--s5); overflow-y: auto; box-shadow: -16px 0 48px rgba(10,31,68,.18); padding-top: calc(var(--s5) + env(safe-area-inset-top)); border-radius: 20px 0 0 20px; }
.drawer.open { transform: translateX(0); }
.drawer nav { display: flex; flex-direction: column; gap: 4px; margin: var(--s5) 0; }
.drawer nav a { font-size: 18px; font-weight: 600; padding: 14px var(--s4); border-radius: var(--r-input); color: var(--text); transition: all var(--duration-quick); }
.drawer nav a:hover, .drawer nav a.active { background: var(--primary-soft); color: var(--primary); }

/* ============ APP SHELL ============ */
.app-portal-layout { display: flex; min-height: 100dvh; }
.app-sidebar {
  width: 264px; flex-shrink: 0; background: linear-gradient(180deg, var(--navy-deep) 0%, #0D2450 100%);
  color: #fff; position: sticky; top: 0; height: 100dvh; overflow-y: auto;
  padding: var(--s5) var(--s4); display: none;
  border-right: 1px solid rgba(255,255,255,.06);
}
@media (min-width: 1024px) { .app-sidebar { display: block; } }
.app-sidebar .side-label { font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.4); padding: var(--s4) var(--s4) var(--s2); }
.app-sidebar nav a {
  display: flex; align-items: center; gap: var(--s3); padding: 12px var(--s4);
  border-radius: var(--r-input); color: rgba(255,255,255,.72);
  font-weight: 500; font-size: 15px; margin-bottom: 2px;
  transition: all var(--duration-quick) var(--ease-standard); text-decoration: none;
  border: 1px solid transparent;
}
.app-sidebar nav a:hover { background: rgba(255,255,255,.07); color: #fff; transform: translateX(2px); }
.app-sidebar nav a.active { background: var(--primary); color: #fff; font-weight: 600; box-shadow: 0 4px 14px rgba(21,94,239,.4); }
.app-content-wrapper { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.app-topbar {
  display: flex; align-items: center; justify-content: space-between; gap: var(--s3);
  padding: var(--s4) var(--s5); background: var(--white);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50;
  box-shadow: 0 2px 12px rgba(18,52,107,.04);
}
.app-topbar .nav-actions { flex-wrap: wrap; }
.app-main { flex: 1; min-width: 0; padding: var(--s5) var(--s5) 100px; }
@media (min-width: 1024px) { .app-main { padding: var(--s6) var(--s6) var(--s6); } }

/* Bottom tabbar */
.tabbar {
  position: fixed; left: 12px; right: 12px; bottom: calc(12px + env(safe-area-inset-bottom)); z-index: 100;
  display: flex; background: rgba(255,255,255,.96); backdrop-filter: blur(20px);
  border: 1px solid var(--border); border-radius: 20px;
  box-shadow: 0 12px 40px rgba(18,52,107,.16); padding: 8px;
}
[data-theme="dark"] .tabbar { background: rgba(19,46,94,.96); }
@media (min-width: 1024px) { .tabbar { display: none; } }
.tabbar a {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 10px 4px; min-height: 56px; border-radius: 14px;
  color: var(--text-muted); font-size: 12px; font-weight: 700; letter-spacing: .02em;
  transition: all var(--duration-quick); text-decoration: none;
}
.tabbar a.active { color: var(--primary); background: var(--primary-soft); }

/* ============ HERO ============ */
.hero { position: relative; overflow: hidden; padding: var(--s8) 0; }
@media (min-width: 1024px) { .hero { padding: 96px 0; } }
.hero-grid { display: grid; gap: var(--s6); align-items: center; }
@media (min-width: 1024px) { .hero-grid { grid-template-columns: 1.1fr .9fr; gap: var(--s8); } }
.hero-eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--primary);
  background: var(--primary-soft); border: 1px solid rgba(21,94,239,.18);
  padding: 8px 16px; border-radius: var(--r-pill); margin-bottom: var(--s4);
}
.hero h1 { margin-bottom: var(--s4); }
.hero-sub { font-size: 18px; color: var(--text-muted); max-width: 54ch; margin-bottom: var(--s5); }
.hero-ctas { display: flex; flex-wrap: wrap; gap: var(--s3); margin-bottom: var(--s5); }
@media (max-width: 767px) { .hero-ctas .btn { flex: 1 1 100%; } }
.hero-trust { display: flex; flex-wrap: wrap; gap: var(--s4); font-size: 14px; color: var(--text-muted); }
.hero-trust strong { color: var(--navy); font-variant-numeric: tabular-nums; }
.hero-visual {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--r-modal);
  padding: var(--s6); box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
}
.hero-visual::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--primary), #7BA7FF); }

/* ============ SECTIONS ============ */
.section-head { margin-bottom: var(--s6); }
.section-head h2 { margin-bottom: var(--s3); }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--primary); margin-bottom: var(--s3); display: block; }
.feature-grid { display: grid; gap: var(--s4); }
@media (min-width: 768px) { .feature-grid { grid-template-columns: repeat(2, 1fr); gap: var(--s5); } }
@media (min-width: 1024px) { .feature-grid { grid-template-columns: repeat(3, 1fr); } }
.feature-card { display: flex; flex-direction: column; }
.feature-card .f-cat { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--primary); margin-bottom: var(--s2); }
.feature-card h3 { margin-bottom: var(--s2); }
.feature-card p { color: var(--text-muted); font-size: 15px; flex: 1; }
.feature-card .f-link { font-weight: 700; font-size: 15px; margin-top: var(--s3); display: inline-block; }
.step-num { font-family: var(--font-head); font-weight: 800; font-size: 14px; color: var(--primary); letter-spacing: .08em; margin-bottom: var(--s2); display: block; }
.hr-soft { border: none; border-top: 1px solid var(--border); margin: var(--s6) 0; }

/* ============ QUIZ ============ */
.quiz-topbar {
  position: sticky; top: 0; z-index: 60; background: var(--white);
  border-bottom: 1px solid var(--border); padding: var(--s3) var(--s4);
  display: flex; align-items: center; gap: var(--s4); flex-wrap: wrap;
  box-shadow: 0 2px 12px rgba(18,52,107,.06);
}
.quiz-timer { font-variant-numeric: tabular-nums; font-weight: 700; font-size: 18px; padding: 8px 16px; background: var(--surface-2); border-radius: var(--r-pill); border: 1px solid var(--border); }
.quiz-timer.warn { background: var(--warning-soft); color: #B54708; border-color: var(--warning); }
.quiz-timer.danger { background: var(--danger-soft); color: var(--danger); border-color: var(--danger); }
.opt-card {
  display: flex; gap: var(--s4); align-items: flex-start; width: 100%;
  padding: var(--s4) var(--s5); border: 2px solid var(--border); border-radius: var(--r-card);
  background: var(--white); text-align: left; font-size: 16px; line-height: 1.5;
  transition: all var(--duration-quick) var(--ease-standard);
  min-height: 68px; cursor: pointer; color: var(--text);
  box-shadow: var(--shadow-sm);
}
.opt-card:hover { border-color: var(--primary); transform: translateY(-1px); box-shadow: var(--shadow); }
.opt-card.selected { border-color: var(--primary); background: var(--primary-soft); box-shadow: 0 0 0 4px var(--primary-ring); }
.opt-card.correct { border-color: var(--success); background: var(--success-soft); }
.opt-card.wrong { border-color: var(--danger); background: var(--danger-soft); }
.opt-key {
  flex-shrink: 0; width: 36px; height: 36px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface-2); font-weight: 800; font-size: 15px; color: var(--text-muted);
  font-family: var(--font-head); transition: all var(--duration-quick);
}
.opt-card.selected .opt-key { background: var(--primary); color: #fff; }
.opt-card.correct .opt-key { background: var(--success); color: #fff; }
.opt-card.wrong .opt-key { background: var(--danger); color: #fff; }
.opt-status { font-size: 13px; font-weight: 700; margin-top: 4px; }
.opt-card.correct .opt-status { color: var(--success); }
.opt-card.wrong .opt-status { color: var(--danger); }

/* ============ TABLES ============ */
.data-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 15px; background: var(--white); border: 1px solid var(--border); border-radius: var(--r-card); overflow: hidden; box-shadow: var(--shadow-sm); }
.data-table th { text-align: left; padding: 14px var(--s4); color: var(--text-muted); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; border-bottom: 2px solid var(--border); background: var(--surface); white-space: nowrap; }
.data-table td { padding: 14px var(--s4); border-bottom: 1px solid var(--border); vertical-align: middle; }
.data-table tbody tr { transition: background var(--duration-quick); }
.data-table tbody tr:hover { background: var(--primary-soft); }
.data-table tbody tr:last-child td { border-bottom: none; }
@media (max-width: 767px) {
  .data-table { background: transparent; border: none; box-shadow: none; }
  .data-table thead { display: none; }
  .data-table, .data-table tbody, .data-table tr, .data-table td { display: block; width: 100%; }
  .data-table tr { background: var(--white); border: 1px solid var(--border); border-radius: var(--r-card); margin-bottom: var(--s3); padding: var(--s4); box-shadow: var(--shadow-sm); }
  .data-table td { border: none; padding: 6px 0; display: flex; justify-content: space-between; gap: var(--s3); align-items: center; }
  .data-table td::before { content: attr(data-label); font-weight: 700; color: var(--text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
}

/* ============ FEEDBACK ============ */
.toast-wrap { position: fixed; z-index: 9999; top: var(--s4); right: var(--s4); display: flex; flex-direction: column; gap: var(--s2); }
@media (max-width: 767px) { .toast-wrap { left: var(--s4); right: var(--s4); align-items: stretch; } }
.toast {
  background: var(--navy-deep); color: #fff; padding: 14px 20px;
  border-radius: var(--r-input); box-shadow: var(--shadow-lg);
  font-size: 14px; font-weight: 500; display: flex; align-items: center; gap: var(--s3);
  animation: toast-in var(--duration-standard) var(--ease-enter);
  border-left: 4px solid var(--primary);
}
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
@keyframes toast-in { from { opacity: 0; transform: translateY(-12px) scale(.98); } }

.modal-backdrop { position: fixed; inset: 0; background: rgba(10,31,68,.55); backdrop-filter: blur(6px); z-index: 200; display: flex; align-items: flex-end; justify-content: center; opacity: 0; pointer-events: none; transition: opacity var(--duration-standard) var(--ease-standard); }
.modal-backdrop.open { opacity: 1; pointer-events: auto; }
.modal { background: var(--white); border-radius: 24px 24px 0 0; width: 100%; max-height: 92dvh; overflow-y: auto; padding: var(--s6); transform: translateY(32px) scale(.98); transition: transform var(--duration-panel) var(--ease-enter); padding-bottom: calc(var(--s6) + env(safe-area-inset-bottom)); box-shadow: 0 -12px 48px rgba(10,31,68,.2); }
.modal-backdrop.open .modal { transform: translateY(0) scale(1); }
@media (min-width: 768px) { .modal-backdrop { align-items: center; padding: var(--s5); } .modal { border-radius: var(--r-modal); max-width: 580px; } }

.skeleton { background: linear-gradient(90deg, var(--surface-2) 25%, var(--border) 50%, var(--surface-2) 75%); background-size: 200% 100%; animation: sk 1.4s infinite var(--ease-standard); border-radius: var(--r-input); }
@keyframes sk { to { background-position: -200% 0; } }
.empty-state { text-align: center; padding: var(--s8) var(--s4); }
.empty-state h3 { margin-bottom: var(--s2); }
.empty-state p { color: var(--text-muted); max-width: 44ch; margin: 0 auto var(--s4); }

.progress { height: 10px; background: var(--surface-2); border-radius: var(--r-pill); overflow: hidden; border: 1px solid var(--border); }
.progress > span { display: block; height: 100%; background: linear-gradient(90deg, var(--primary), var(--primary-hover)); border-radius: var(--r-pill); transition: width var(--duration-panel) var(--ease-standard); }

/* Tabs */
.tabs { display: flex; gap: 4px; overflow-x: auto; border-bottom: 2px solid var(--border); -webkit-overflow-scrolling: touch; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs a, .tabs button { padding: 14px 20px; font-weight: 600; font-size: 15px; color: var(--text-muted); border: none; background: none; white-space: nowrap; cursor: pointer; position: relative; transition: color var(--duration-quick); }
.tabs a:hover, .tabs button:hover { color: var(--primary); }
.tabs a.active, .tabs button.active { color: var(--primary); }
.tabs a.active::after, .tabs button.active::after { content: ''; position: absolute; bottom: -2px; left: 12px; right: 12px; height: 3px; background: var(--primary); border-radius: 3px 3px 0 0; }

/* Accordion */
.accordion-item { border: 1px solid var(--border); border-radius: var(--r-card); margin-bottom: var(--s3); background: var(--white); overflow: hidden; transition: box-shadow var(--duration-standard), border-color var(--duration-quick); }
.accordion-item:hover { border-color: var(--border-strong); }
.accordion-item.open { box-shadow: var(--shadow); border-color: var(--primary); }
.accordion-head { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: var(--s3); padding: 18px var(--s5); font-weight: 700; font-size: 16px; background: none; border: none; text-align: left; color: var(--text); min-height: 60px; cursor: pointer; font-family: var(--font-head); letter-spacing: -0.01em; }
.accordion-head .acc-toggle { font-size: 13px; font-weight: 700; color: var(--primary); background: var(--primary-soft); padding: 6px 14px; border-radius: var(--r-pill); flex-shrink: 0; }
.accordion-body { padding: 0 var(--s5) var(--s5); display: none; color: var(--text-muted); }
.accordion-item.open .accordion-body { display: block; animation: fade-in var(--duration-standard) var(--ease-enter); }
@keyframes fade-in { from { opacity: 0; transform: translateY(-4px); } }

/* ============ FOOTER ============ */
.site-footer { background: linear-gradient(180deg, var(--navy-deep) 0%, #071633 100%); color: #fff; margin-top: var(--s9); position: relative; overflow: hidden; }
.site-footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,.2), transparent); }
.site-footer a { color: rgba(255,255,255,.72); transition: color var(--duration-quick); }
.site-footer a:hover { color: #fff; }
.footer-promo { background: linear-gradient(135deg, #8A6100 0%, #B57E00 50%, #8A6100 100%); border-radius: var(--r-card); padding: var(--s5) var(--s6); display: flex; flex-wrap: wrap; align-items: center; gap: var(--s4); justify-content: space-between; margin: var(--s7) 0 var(--s6); box-shadow: 0 12px 32px rgba(0,0,0,.25); border: 1px solid rgba(255,255,255,.12); }
.footer-grid { display: grid; gap: var(--s6); padding: 0 0 var(--s6); grid-template-columns: 1fr; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr; } }
.footer-grid h4 { color: #fff; font-size: 14px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: var(--s4); }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; font-size: 15px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: var(--s5) 0; display: flex; flex-wrap: wrap; gap: var(--s3); justify-content: space-between; font-size: 14px; color: rgba(255,255,255,.55); }

/* ============ CHATBOT ============ */
.chat-fab {
  position: fixed; right: 20px; bottom: calc(88px + env(safe-area-inset-bottom)); z-index: 150;
  min-width: 64px; height: 56px; padding: 0 20px; border-radius: var(--r-pill);
  background: linear-gradient(180deg, var(--primary), var(--primary-hover)); color: #fff; border: none;
  box-shadow: 0 8px 24px rgba(21,94,239,.4); display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 15px; gap: var(--s2);
  transition: transform var(--duration-quick), box-shadow var(--duration-standard);
}
.chat-fab:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(21,94,239,.5); }
@media (min-width: 1024px) { .chat-fab { bottom: calc(var(--s5) + env(safe-area-inset-bottom)); } }
.chat-panel { position: fixed; z-index: 151; background: var(--white); inset: 0; display: none; flex-direction: column; }
.chat-panel.open { display: flex; animation: fade-in var(--duration-standard) var(--ease-enter); }
@media (min-width: 768px) { .chat-panel { inset: auto; right: 20px; bottom: calc(88px + 20px); width: 384px; height: 600px; max-height: calc(100dvh - 120px); border-radius: var(--r-modal); box-shadow: var(--shadow-lg); border: 1px solid var(--border); overflow: hidden; } }

/* ============ MOTION ============ */
@view-transition { navigation: auto; }
::view-transition-old(root) { animation: vt-out var(--duration-page) var(--ease-standard); }
::view-transition-new(root) { animation: vt-in var(--duration-page) var(--ease-enter); }
@keyframes vt-out { to { opacity: 0; } }
@keyframes vt-in { from { opacity: 0; transform: translateY(8px); } }

@media (prefers-reduced-motion: no-preference) {
  .fade-up { opacity: 0; transform: translateY(20px); transition: opacity 500ms var(--ease-enter), transform 500ms var(--ease-enter); }
  .fade-up.in { opacity: 1; transform: none; }
  .stagger > * { opacity: 0; transform: translateY(16px); transition: opacity 400ms var(--ease-enter), transform 400ms var(--ease-enter); }
  .stagger.in > *:nth-child(1) { transition-delay: 0ms; }
  .stagger.in > *:nth-child(2) { transition-delay: 60ms; }
  .stagger.in > *:nth-child(3) { transition-delay: 120ms; }
  .stagger.in > *:nth-child(4) { transition-delay: 180ms; }
  .stagger.in > *:nth-child(5) { transition-delay: 240ms; }
  .stagger.in > *:nth-child(6) { transition-delay: 300ms; }
  .stagger.in > * { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .fade-up, .stagger > * { opacity: 1 !important; transform: none !important; }
  ::view-transition-old(root), ::view-transition-new(root) { animation: none; }
}

/* ============ AUTH ============ */
.auth-page-body { min-height: 100dvh; display: flex; align-items: center; justify-content: center; padding: var(--s4); background: linear-gradient(135deg, var(--surface) 0%, var(--primary-soft) 100%); }
main.auth-page-body .auth-master-card { display: grid; grid-template-columns: 1fr; width: 100%; max-width: 980px; background: var(--white); border: 1px solid var(--border); border-radius: 24px; overflow: hidden; box-shadow: var(--shadow-lg); }
@media (min-width: 900px) { main.auth-page-body .auth-master-card { grid-template-columns: 1.05fr .95fr; } }
main.auth-page-body .auth-master-card .form-column { padding: var(--s6); }
@media (min-width: 900px) { main.auth-page-body .auth-master-card .form-column { padding: var(--s8); } }
main.auth-page-body .auth-master-card .badge-sub span { font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--primary); background: var(--primary-soft); padding: 8px 16px; border-radius: var(--r-pill); display: inline-block; }
main.auth-page-body .auth-master-card .login-heading { font-size: 32px; margin: var(--s4) 0 var(--s2); }
main.auth-page-body .auth-master-card .login-subtext { color: var(--text-muted); margin-bottom: var(--s5); font-size: 16px; }
main.auth-page-body .auth-master-card .wide-field-wrapper { margin-bottom: var(--s4); }
main.auth-page-body .auth-master-card .wide-field-wrapper input { width: 100%; min-height: 54px; padding: 14px 18px; border: 1.5px solid var(--border); border-radius: var(--r-input); font-size: 16px; background: var(--surface); transition: all var(--duration-quick); }
main.auth-page-body .auth-master-card .wide-field-wrapper input:focus { outline: none; border-color: var(--primary); background: var(--white); box-shadow: 0 0 0 4px var(--primary-ring); }
main.auth-page-body .auth-master-card .btn-login-submit { width: 100%; min-height: 54px; background: linear-gradient(180deg, var(--primary), var(--primary-hover)); color: #fff; border: none; border-radius: var(--r-pill); font-size: 16px; font-weight: 700; cursor: pointer; box-shadow: 0 6px 20px rgba(21,94,239,.3); transition: all var(--duration-quick); }
main.auth-page-body .auth-master-card .btn-login-submit:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(21,94,239,.4); }
main.auth-page-body .auth-master-card .btn-google-login-action { width: 100%; min-height: 54px; display: flex; align-items: center; justify-content: center; gap: var(--s3); background: var(--white); border: 1.5px solid var(--border); border-radius: var(--r-pill); font-size: 16px; font-weight: 600; cursor: pointer; transition: all var(--duration-quick); }
main.auth-page-body .auth-master-card .btn-google-login-action:hover { border-color: var(--primary); box-shadow: var(--shadow); }

/* ============ NO-ICON RULES ============ */
.no-icons svg:not(.icon-sun):not(.icon-moon) { display: none !important; }
.status-text { font-weight: 700; font-size: 14px; }
.status-active { color: var(--success); }
.status-pending { color: #B54708; }
.status-failed, .status-inactive { color: var(--danger); }
.btn-close-text { background: var(--surface-2); border: 1px solid var(--border); font-size: 14px; font-weight: 700; color: var(--text); padding: 10px 20px; min-height: 44px; cursor: pointer; border-radius: var(--r-pill); transition: all var(--duration-quick); }
.btn-close-text:hover { border-color: var(--primary); color: var(--primary); }

/* ============ UTILITIES ============ */
.text-center { text-align: center; }
.mt-2 { margin-top: var(--s2); } .mt-3 { margin-top: var(--s3); } .mt-4 { margin-top: var(--s4); } .mt-5 { margin-top: var(--s5); } .mt-6 { margin-top: var(--s6); }
.mb-2 { margin-bottom: var(--s2); } .mb-3 { margin-bottom: var(--s3); } .mb-4 { margin-bottom: var(--s4); } .mb-5 { margin-bottom: var(--s5); } .mb-6 { margin-bottom: var(--s6); }
.flex { display: flex; } .items-center { align-items: center; } .justify-between { justify-content: space-between; }
.gap-2 { gap: var(--s2); } .gap-3 { gap: var(--s3); } .gap-4 { gap: var(--s4); }

/* ============ COUNTDOWN TIMER ============ */
.countdown-wrap, [class*="countdown"] {
  display: flex; flex-wrap: wrap; gap: var(--s3); align-items: center;
}
.countdown-unit, [class*="cd-"] {
  display: inline-flex; flex-direction: column; align-items: center;
  background: var(--white); border: 1px solid var(--border); border-radius: var(--r-card);
  padding: var(--s4) var(--s5); min-width: 88px; box-shadow: var(--shadow-sm);
}
.countdown-unit .num, [class*="cd-"] .num {
  font-size: 28px; font-weight: 800; font-family: var(--font-head);
  color: var(--primary); font-variant-numeric: tabular-nums; line-height: 1;
}
.countdown-unit .lbl, [class*="cd-"] .lbl {
  font-size: 12px; font-weight: 600; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: .06em; margin-top: 4px;
}

/* Spin & Win pill: avoid overlapping hero content on mobile */
@media (max-width: 640px) {
  #floatingSpinTab { bottom: 24px !important; right: 12px !important; padding: 10px 16px !important; font-size: 13px !important; }
}

/* ==========================================================================
   STUDENT PAGES — Premium polish layer (blue base + orange accents)
   Colorful card hovers, micro-animations, consistent theme site-wide.
   ========================================================================== */
:root {
  --accent-orange: #EA580C;
  --accent-orange-deep: #C2410C;
  --accent-orange-soft: #FFF3EA;
  --accent-teal: #0E9F8A;
  --accent-teal-soft: #E6F7F4;
  --accent-purple: #7C3AED;
  --accent-purple-soft: #F1EAFE;
  --accent-blue-soft: #EEF4FF;
}

/* ---- Colorful card hover system ---- */
.pcard {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--r-card);
  padding: var(--s5); box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
  transition: transform var(--duration-standard) var(--ease-enter),
              box-shadow var(--duration-standard) var(--ease-enter),
              border-color var(--duration-quick);
  --acc: var(--primary); --acc-soft: var(--accent-blue-soft);
}
.pcard::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--acc); transform: scaleX(0); transform-origin: left;
  transition: transform var(--duration-standard) var(--ease-enter);
}
.pcard:hover {
  transform: translateY(-4px); box-shadow: 0 16px 40px rgba(18,52,107,.14), 0 0 0 1px var(--acc);
  border-color: transparent;
}
.pcard:hover::before { transform: scaleX(1); }
.pcard.acc-orange { --acc: var(--accent-orange); --acc-soft: var(--accent-orange-soft); }
.pcard.acc-teal   { --acc: var(--accent-teal);   --acc-soft: var(--accent-teal-soft); }
.pcard.acc-purple { --acc: var(--accent-purple); --acc-soft: var(--accent-purple-soft); }
.pcard.acc-blue   { --acc: var(--primary);       --acc-soft: var(--accent-blue-soft); }
.pcard .pcard-badge {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .05em;
  text-transform: uppercase; color: var(--acc); background: var(--acc-soft);
  padding: 6px 12px; border-radius: 999px; margin-bottom: var(--s3);
  transition: background var(--duration-quick), color var(--duration-quick);
}
.pcard:hover .pcard-badge { background: var(--acc); color: #fff; }

/* ---- Buttons: orange CTA + blue primary, press-scale + sheen ---- */
.btn-cta {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: linear-gradient(180deg, #F97316, var(--accent-orange) 60%, var(--accent-orange-deep));
  color: #fff; font-weight: 700; font-size: 15px; padding: 14px 28px; border: none;
  border-radius: var(--r-pill); cursor: pointer; position: relative; overflow: hidden;
  box-shadow: 0 8px 24px rgba(234,88,12,.35), inset 0 1px 0 rgba(255,255,255,.25);
  transition: transform var(--duration-quick) var(--ease-enter), box-shadow var(--duration-standard);
  min-height: 48px; text-decoration: none;
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(234,88,12,.45), inset 0 1px 0 rgba(255,255,255,.25); color: #fff; }
.btn-cta:active { transform: scale(.97); }
.btn-cta::after {
  content: ''; position: absolute; top: 0; left: -80%; width: 50%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.45), transparent);
  transform: skewX(-20deg); transition: left .6s var(--ease-standard);
}
.btn-cta:hover::after { left: 130%; }

/* ---- Micro-animations ---- */
@keyframes fadeUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
.anim-fade-up { animation: fadeUp var(--duration-panel) var(--ease-enter) both; }
.anim-d1 { animation-delay: 80ms; } .anim-d2 { animation-delay: 160ms; }
.anim-d3 { animation-delay: 240ms; } .anim-d4 { animation-delay: 320ms; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity var(--duration-panel) var(--ease-enter), transform var(--duration-panel) var(--ease-enter); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---- Section headers (consistent across student pages) ---- */
.page-hero {
  background: linear-gradient(135deg, var(--navy-deep), var(--navy) 60%, #1B4AA0);
  color: #fff; border-radius: var(--r-card); padding: var(--s7) var(--s6);
  margin-bottom: var(--s6); position: relative; overflow: hidden;
}
.page-hero::after {
  content: ''; position: absolute; right: -60px; top: -60px; width: 220px; height: 220px;
  border-radius: 50%; background: radial-gradient(circle, rgba(234,88,12,.35), transparent 70%);
}
.page-hero h1, .page-hero h2 { color: #fff; margin-bottom: var(--s2); }
.page-hero p { color: rgba(255,255,255,.82); margin: 0; }
.page-hero .hl { color: var(--accent-orange); }

/* ---- Stat cards ---- */
.stat-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--r-card);
  padding: var(--s5); box-shadow: var(--shadow-sm); position: relative;
  transition: transform var(--duration-standard) var(--ease-enter), box-shadow var(--duration-standard);
}
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.stat-card .stat-num {
  font-size: 32px; font-weight: 800; font-family: var(--font-head);
  color: var(--navy); letter-spacing: -0.02em; line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.stat-card .stat-lbl { font-size: 13px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; margin-top: 4px; }
.stat-card .stat-bar { height: 4px; border-radius: 999px; background: var(--surface-2); margin-top: var(--s3); overflow: hidden; }
.stat-card .stat-bar i { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--primary), var(--accent-orange)); transition: width 1s var(--ease-enter); }

/* ---- Quiz option cards ---- */
.opt-card {
  display: flex; align-items: center; gap: var(--s3); width: 100%; text-align: left;
  background: var(--white); border: 2px solid var(--border); border-radius: var(--r-card);
  padding: var(--s4) var(--s5); font-size: 15px; cursor: pointer; min-height: 56px;
  transition: border-color var(--duration-quick), transform var(--duration-quick) var(--ease-enter),
              box-shadow var(--duration-standard), background var(--duration-quick);
}
.opt-card:hover { border-color: var(--primary); transform: translateX(4px); box-shadow: var(--shadow); }
.opt-card:active { transform: scale(.99); }
.opt-card .opt-key {
  flex-shrink: 0; width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 14px; background: var(--surface-2); color: var(--text-muted);
  transition: background var(--duration-quick), color var(--duration-quick);
}
.opt-card:hover .opt-key { background: var(--primary); color: #fff; }
.opt-card.selected { border-color: var(--primary); background: var(--accent-blue-soft); }
.opt-card.selected .opt-key { background: var(--primary); color: #fff; }
.opt-card.correct { border-color: var(--success); background: var(--success-soft); }
.opt-card.correct .opt-key { background: var(--success); color: #fff; }
.opt-card.wrong { border-color: var(--danger); background: var(--danger-soft); }
.opt-card.wrong .opt-key { background: var(--danger); color: #fff; }

/* ---- Leaderboard rows ---- */
.lb-row {
  display: flex; align-items: center; gap: var(--s4); padding: var(--s4) var(--s5);
  background: var(--white); border: 1px solid var(--border); border-radius: var(--r-card);
  margin-bottom: var(--s3); transition: transform var(--duration-standard) var(--ease-enter), box-shadow var(--duration-standard);
}
.lb-row:hover { transform: translateX(6px); box-shadow: var(--shadow); }
.lb-rank {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 16px; background: var(--surface-2); color: var(--text-muted);
}
.lb-row.top1 .lb-rank { background: linear-gradient(135deg, #F5B700, #E09E00); color: #fff; box-shadow: 0 4px 14px rgba(245,183,0,.4); }
.lb-row.top2 .lb-rank { background: linear-gradient(135deg, #98A2B8, #667085); color: #fff; }
.lb-row.top3 .lb-rank { background: linear-gradient(135deg, #EA580C, #C2410C); color: #fff; }
.lb-row.me { border: 2px solid var(--primary); background: var(--accent-blue-soft); }

/* ---- Flashcard flip ---- */
.fc-scene { perspective: 1200px; }
.fc-card {
  position: relative; width: 100%; min-height: 280px; cursor: pointer;
  transform-style: preserve-3d; transition: transform .6s var(--ease-enter);
}
.fc-card.flipped { transform: rotateY(180deg); }
.fc-face {
  position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden;
  background: var(--white); border: 1px solid var(--border); border-radius: var(--r-card);
  padding: var(--s6); display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; box-shadow: var(--shadow);
}
.fc-face.fc-back { transform: rotateY(180deg); background: linear-gradient(135deg, var(--navy-deep), var(--navy)); color: #fff; }
.fc-face.fc-back h3, .fc-face.fc-back p { color: #fff; }

/* ---- Progress bars ---- */
.pbar { height: 8px; border-radius: 999px; background: var(--surface-2); overflow: hidden; }
.pbar > i { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--primary), var(--accent-orange)); transition: width .8s var(--ease-enter); }

/* ---- Mobile: 44px targets, no overflow ---- */
@media (max-width: 640px) {
  .page-hero { padding: var(--s6) var(--s4); }
  .btn-cta { width: 100%; }
  .stat-card .stat-num { font-size: 26px; }
  .opt-card { min-height: 60px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---- Enhance existing .card-hover with premium colorful treatment ---- */
.card-hover {
  position: relative; overflow: hidden;
  transition: transform var(--duration-standard) var(--ease-enter),
              box-shadow var(--duration-standard) var(--ease-enter),
              border-color var(--duration-quick);
}
.card-hover::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--primary); transform: scaleX(0); transform-origin: left;
  transition: transform var(--duration-standard) var(--ease-enter);
}
.card-hover:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-hover);
  border-color: rgba(21,94,239,.3);
}
.card-hover:hover::before { transform: scaleX(1); }
/* Colorful accent cycling for card grids */
.grid > .card-hover:nth-child(4n+2)::before { background: var(--accent-orange); }
.grid > .card-hover:nth-child(4n+3)::before { background: var(--accent-teal); }
.grid > .card-hover:nth-child(4n+4)::before { background: var(--accent-purple); }
.grid > .card-hover:nth-child(4n+2):hover { border-color: rgba(234,88,12,.3); }
.grid > .card-hover:nth-child(4n+3):hover { border-color: rgba(14,159,138,.3); }
.grid > .card-hover:nth-child(4n+4):hover { border-color: rgba(124,58,237,.3); }

/* ---- Buttons: press-scale micro-animation ---- */
.btn { transition: transform var(--duration-quick) var(--ease-enter), box-shadow var(--duration-standard), background var(--duration-quick), border-color var(--duration-quick), color var(--duration-quick); }
.btn:active { transform: scale(.97); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(21,94,239,.35); }

/* ---- Table row hover lift ---- */
.data-table tbody tr { transition: background var(--duration-quick), transform var(--duration-quick); }
.data-table tbody tr:hover { transform: translateX(3px); }

/* ---- Tab sliding underline ---- */
.tabs a, .tabs button { position: relative; }
.tabs a::after, .tabs button::after {
  content: ''; position: absolute; bottom: -2px; left: 20px; right: 20px; height: 3px;
  background: var(--accent-orange); border-radius: 999px;
  transform: scaleX(0); transition: transform var(--duration-standard) var(--ease-enter);
}
.tabs a.active::after, .tabs button.active::after { transform: scaleX(1); }
.tabs a.active, .tabs button.active { color: var(--primary); }

/* Dashboard/app content: breathing room from sidebar */
.app-content-wrapper > main { padding-left: var(--s6); padding-right: var(--s6); }
@media (max-width: 1023px) {
  .app-content-wrapper > main { padding-left: var(--s4); padding-right: var(--s4); }
}

/* Admin panel premium polish */
.admin-card { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: var(--s5); box-shadow: 0 1px 3px rgba(16,24,40,.06); transition: box-shadow var(--duration-standard) var(--ease-standard), transform var(--duration-standard) var(--ease-standard); }
.admin-card:hover { box-shadow: 0 8px 24px rgba(16,24,40,.1); transform: translateY(-2px); }
.admin-stat { font-family: var(--font-head); font-size: 32px; font-weight: 800; color: var(--navy); }
.admin-stat-label { font-size: 13px; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }
.data-table { width: 100%; border-collapse: separate; border-spacing: 0; background: #fff; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.data-table th { background: var(--soft-blue); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--navy); font-weight: 700; padding: var(--s3) var(--s4); text-align: left; border-bottom: 2px solid var(--border); }
.data-table td { padding: var(--s3) var(--s4); border-bottom: 1px solid var(--border); font-size: 14px; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--soft-blue); }

/* === SITE-WIDE ANIMATION CONSISTENCY (Phase 5) === */
/* All interactive elements get buttery 200ms transitions */
a, button, .btn, input, select, textarea {
  transition: color var(--duration-fast) var(--ease-standard),
              background-color var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard),
              box-shadow var(--duration-standard) var(--ease-standard),
              transform var(--duration-standard) var(--ease-standard);
}
.btn:active { transform: scale(.98); }
.card, .stat-card, .admin-card { transition: transform var(--duration-standard) var(--ease-standard), box-shadow var(--duration-standard) var(--ease-standard); }
/* Smooth page transitions */
main { animation: pageFadeIn var(--duration-standard) var(--ease-standard); }
@keyframes pageFadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  main { animation: none; }
}

/* === Mobile Enhancements (2026-11-01) === */
@media (max-width: 768px) {
  /* Sidebar as overlay drawer */
  .navy-portal-sidebar { position: fixed; top: 0; left: 0; bottom: 0; width: 280px; z-index: 1000; transform: translateX(-100%); transition: transform .3s ease; box-shadow: 4px 0 24px rgba(0,0,0,.15); }
  body.sidebar-open .navy-portal-sidebar, .navy-portal-sidebar.is-open { transform: translateX(0); }
  .sidebar-mobile-close-wrap { display: block !important; }
  .sidebar-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 999; opacity: 0; pointer-events: none; transition: opacity .3s; }
  body.sidebar-open .sidebar-backdrop { opacity: 1; pointer-events: auto; }
  
  /* Dashboard mobile */
  .dash-wrap { padding: 0 12px 20px; }
  .dash-landing-hero { padding: 24px 20px; border-radius: 18px; }
  .dash-landing-hero h1 { font-size: 24px; }
  .dash-shortcuts { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .shortcut-card { padding: 16px 10px; }
  .sc-icon { width: 40px; height: 40px; font-size: 18px; }
  
  /* Cards stack */
  .card { border-radius: 14px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr !important; }
  
  /* Typography */
  h1 { font-size: 26px; }
  h2 { font-size: 22px; }
  
  /* Touch targets */
  .btn, button, a.btn { min-height: 44px; }
  .sidebar-nav-item { padding: 14px 20px; font-size: 15px; }
}

@media (max-width: 480px) {
  .dash-meta-row { gap: 8px; }
  .dash-pill { padding: 6px 12px; font-size: 12px; }
  .dash-cta-btn { padding: 12px 24px; font-size: 14px; }
}


/* ============ CHAT WIDGET ============ */
/* Ask EduXperti floating button hidden per user request */
.site-chat-launch { display:none !important; }
.site-chat-launch{position:fixed;right:20px;bottom:22px;z-index:60;display:inline-flex;align-items:center;gap:8px;border-radius:999px!important;min-height:48px;padding:12px 22px;font-weight:600;box-shadow:0 8px 24px rgba(21,94,239,.3);border:none;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}.site-chat-launch:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(21,94,239,.4)}.site-chat{position:fixed;right:20px;bottom:84px;width:min(380px,calc(100vw - 32px));height:min(540px,calc(100dvh - 120px));z-index:61;border:1px solid #E2E8F0;border-radius:16px;background:#fff;box-shadow:0 24px 64px rgba(10,31,68,.22);color:#0F172A;display:flex;flex-direction:column;overflow:hidden}.site-chat[hidden]{display:none}.site-chat-head{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid #E2E8F0;background:#F8FAFC;flex-shrink:0}.site-chat-head img{width:32px;height:32px;border-radius:8px;object-fit:cover}.site-chat-head strong{font-size:14px;font-weight:700;flex:1;color:#0F172A}.site-chat-head .btn{padding:6px 12px;font-size:12px;border-radius:8px;background:#EEF4FF!important;color:#155EEF!important;box-shadow:none;border:none;cursor:pointer;min-height:32px}.site-chat-head .btn-close-text{padding:6px 12px;font-size:12px;border-radius:8px;background:#F1F5F9;border:none;color:#475569;cursor:pointer;font-weight:600}.site-chat-head .btn-close-text:hover{background:#E2E8F0}.site-chat-log{flex:1;overflow-y:auto;padding:16px;overscroll-behavior:contain;min-height:0}.site-chat-message{font-size:14px;line-height:1.6;margin:0 0 12px;overflow-wrap:anywhere;background:#F1F5F9;padding:10px 14px;border-radius:12px;max-width:85%}.site-chat-message[data-role=user]{background:#155EEF;color:#fff;margin-left:auto}.site-chat-message a{color:#155EEF;text-decoration:underline}.site-chat-form{padding:12px 14px;border-top:1px solid #E2E8F0;background:#fff;flex-shrink:0}.site-chat-form textarea{width:100%;resize:none;min-height:56px;max-height:110px;padding:10px 12px;font-size:14px;border:1.5px solid #E2E8F0;border-radius:10px;font-family:inherit;box-sizing:border-box}.site-chat-form textarea:focus{outline:none;border-color:#155EEF}.site-chat-actions{display:flex;justify-content:space-between;align-items:center;margin-top:10px}.site-chat-actions small{font-size:11px;color:#94A3B8}.site-chat-actions .btn{padding:10px 24px;border-radius:999px;font-size:14px;font-weight:600;background:#155EEF!important;color:#fff;border:none;cursor:pointer;box-shadow:0 4px 12px rgba(21,94,239,.3)}.site-chat-actions .btn:hover{background:#0F47C9!important}.site-chat-error{color:#DC2626;font-size:12px;margin:8px 0}.site-chat-wait{color:#94A3B8;font-size:12px}.pp-fab{left:16px!important;right:auto!important;max-width:calc(100vw - 155px)}
@media(max-width:600px){.site-chat-launch{right:16px;bottom:16px;font-size:12px;padding:10px}.site-chat{right:16px;bottom:76px}.exam-countdown{padding:16px}.countdown-digits b{font-size:24px}}





/* ============ ALERTS / FLASH MESSAGES ============ */
.alert { padding:14px 18px; border-radius:12px; font-size:14px; font-weight:500; margin:16px auto; max-width:600px; display:flex; align-items:center; gap:10px; animation:slideDown .3s ease; }
@keyframes slideDown { from { opacity:0; transform:translateY(-10px); } to { opacity:1; transform:translateY(0); } }
.alert-warn { background:#FFFBEB; border:1.5px solid #FCD34D; color:#92400E; }
.alert-err { background:#FEF2F2; border:1.5px solid #FCA5A5; color:#991B1B; }
.alert-ok { background:#F0FDF4; border:1.5px solid #86EFAC; color:#166534; }
.alert-info { background:#EFF6FF; border:1.5px solid #93C5FD; color:#1E40AF; }
[data-theme="dark"] .alert-warn { background:#451A03; border-color:#92400E; color:#FCD34D; }
[data-theme="dark"] .alert-err { background:#450A0A; border-color:#991B1B; color:#FCA5A5; }
[data-theme="dark"] .alert-ok { background:#052E16; border-color:#166534; color:#86EFAC; }
[data-theme="dark"] .alert-info { background:#172554; border-color:#1E40AF; color:#93C5FD; }
/* Auth page alerts - positioned properly within the form card */
.auth-page .alert { margin:0 0 20px; max-width:100%; }

/* ============ UNIVERSITY CARDS ============ */
.uni-grid { display:grid; gap:16px; grid-template-columns:1fr; margin-top:20px; }
@media(min-width:640px){ .uni-grid{ grid-template-columns:1fr 1fr; } }
@media(min-width:1024px){ .uni-grid{ grid-template-columns:1fr 1fr; } }
.uni-card { display:flex; flex-direction:column; background:#fff; border:1.5px solid #E2E8F0; border-radius:18px; padding:24px; text-decoration:none; transition:all .25s ease; position:relative; }
.uni-card:hover { border-color:#155EEF; transform:translateY(-3px); box-shadow:0 16px 36px -10px rgba(21,94,239,.18); }
.uni-card-logo { width:64px; height:64px; border-radius:14px; overflow:hidden; margin-bottom:16px; background:#EFF6FF; display:flex; align-items:center; justify-content:center; font-weight:800; font-size:20px; color:#155EEF; }
.uni-card-logo img { width:100%; height:100%; object-fit:cover; }
.uni-card h3 { font-size:18px; font-weight:700; color:#0A1F44; margin:0 0 6px; }
.uni-city { font-size:13px; color:#64748B; margin:0 0 16px; display:flex; align-items:center; gap:6px; }
.uni-card-foot { display:flex; gap:12px; margin-bottom:16px; }
.uni-card-foot span { font-size:12.5px; font-weight:500; color:#475569; background:#F1F5F9; padding:7px 14px; border-radius:999px; display:inline-flex; align-items:center; gap:6px; }
.uni-go { align-self:flex-start; font-size:13.5px; font-weight:600; color:#fff; background:#155EEF; padding:10px 22px; border-radius:10px; transition:background .2s; }
.uni-card:hover .uni-go { background:#0B3AA8; }
[data-theme="dark"] .uni-card { background:#0F1D33; border-color:#1E3A5F; }
[data-theme="dark"] .uni-card h3 { color:#F1F5F9; }
[data-theme="dark"] .uni-city { color:#94A3B8; }
[data-theme="dark"] .uni-card-foot span { background:#13233D; color:#CBD5E1; }

/* ============ PAPERS LIST ============ */
.papers-card { background:#fff; border:1.5px solid #E2E8F0; border-radius:20px; padding:28px; margin-top:24px; }
.papers-head { display:flex; align-items:center; gap:14px; margin-bottom:20px; }
.papers-head h3 { font-size:20px; font-weight:700; color:#0A1F44; margin:0; }
.papers-head .meta { font-size:13px; color:#64748B; margin:4px 0 0; }
.papers-list { display:grid; gap:12px; }
@media(min-width:768px){ .papers-list{ grid-template-columns:1fr 1fr; } }
.paper-item { display:flex; align-items:center; gap:14px; padding:16px; background:#F8FAFC; border:1.5px solid #E2E8F0; border-radius:14px; text-decoration:none; transition:all .2s ease; }
.paper-item:hover { border-color:#155EEF; background:#EFF6FF; transform:translateY(-2px); box-shadow:0 8px 20px -6px rgba(21,94,239,.15); }
.paper-item .paper-year { width:56px; height:56px; border-radius:12px; background:linear-gradient(135deg,#155EEF,#0B3AA8); color:#fff; font-weight:800; font-size:14px; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.paper-item img { width:56px; height:56px; border-radius:12px; object-fit:cover; flex-shrink:0; }
.paper-item .grow { flex:1; min-width:0; }
.paper-item .grow b { display:block; font-size:14.5px; font-weight:600; color:#0A1F44; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.paper-item .grow small { font-size:12.5px; color:#64748B; display:flex; align-items:center; gap:4px; margin-top:4px; }
.paper-item .paper-act { color:#94A3B8; flex-shrink:0; }
.paper-item:hover .paper-act { color:#155EEF; }
.paper-item.locked { opacity:.75; }
[data-theme="dark"] .papers-card { background:#0F1D33; border-color:#1E3A5F; }
[data-theme="dark"] .papers-head h3 { color:#F1F5F9; }
[data-theme="dark"] .papers-head .meta { color:#94A3B8; }
[data-theme="dark"] .paper-item { background:#13233D; border-color:#1E3A5F; }
[data-theme="dark"] .paper-item:hover { background:#1A2F4D; border-color:#155EEF; }
[data-theme="dark"] .paper-item .grow b { color:#F1F5F9; }
[data-theme="dark"] .paper-item .grow small { color:#94A3B8; }

/* ================= PREMIUM FOOTER ================= */
.site-footer { position:relative; background:linear-gradient(180deg,#0B1F4B 0%,#07142F 100%); color:#fff; overflow:hidden; margin-top:0; }
.foot-top-line { height:3px; background:linear-gradient(90deg,#155EEF 0%,#EA580C 50%,#155EEF 100%); }
.foot-glow { position:absolute; width:480px; height:480px; border-radius:50%; background:radial-gradient(circle,rgba(21,94,239,.14) 0%,transparent 70%); top:-160px; right:-120px; pointer-events:none; }
.foot-wrap { max-width:1200px; margin:0 auto; padding:56px 24px 0; position:relative; z-index:1; }
/* Main grid */
.foot-grid { display:grid; gap:40px; grid-template-columns:1fr; padding-bottom:40px; }
@media(min-width:768px){ .foot-grid{ grid-template-columns:1fr 1fr; } .foot-brand{ grid-column:1/-1; } }
@media(min-width:1024px){ .foot-grid{ grid-template-columns:4fr 2fr 2fr 3fr; gap:48px; } .foot-brand{ grid-column:auto; } }
/* Brand */
.foot-logo { max-height:56px; width:auto; }
.foot-desc { font-size:13.5px; line-height:1.7; color:rgba(255,255,255,.7); max-width:320px; margin:16px 0 20px; }
.foot-social { display:flex; gap:10px; flex-wrap:wrap; }
.foot-soc-btn { width:40px; height:40px; border-radius:50%; display:inline-flex; align-items:center; justify-content:center; background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.12); color:rgba(255,255,255,.85); transition:all .25s ease; }
.foot-soc-btn:hover { background:rgba(21,94,239,.35); border-color:rgba(21,94,239,.6); color:#fff; box-shadow:0 0 18px rgba(21,94,239,.45); transform:translateY(-2px); }
.foot-soc-btn:focus-visible { outline:2px solid #EA580C; outline-offset:2px; }
/* Column headings */
.foot-head { font-size:12px; text-transform:uppercase; letter-spacing:.08em; font-weight:700; color:#fff; margin:0 0 4px; padding-bottom:10px; position:relative; }
.foot-head::after { content:""; position:absolute; left:0; bottom:0; width:24px; height:2px; background:#EA580C; border-radius:2px; }
/* Links */
.foot-list { list-style:none; margin:14px 0 0; padding:0; }
.foot-list li { margin:0; }
.foot-list a { display:inline-block; font-size:13.5px; color:rgba(255,255,255,.68); text-decoration:none; padding:5px 0; transition:color .2s ease, transform .2s ease; }
.foot-list a:hover { color:#fff; transform:translateX(4px); }
.foot-list a:focus-visible { outline:2px solid #EA580C; outline-offset:2px; border-radius:4px; }
/* Support rows */
.foot-support { list-style:none; margin:14px 0 0; padding:0; display:flex; flex-direction:column; gap:12px; }
.foot-support li { display:flex; align-items:center; gap:10px; font-size:13px; color:rgba(255,255,255,.68); }
.foot-support svg { flex-shrink:0; color:rgba(255,255,255,.5); }
.foot-support a { color:rgba(255,255,255,.68); text-decoration:none; transition:color .2s; }
.foot-support a:hover { color:#fff; }
/* Trust strip */
.foot-trust { border-top:1px solid rgba(255,255,255,.08); padding:24px 0; display:flex; flex-direction:column; gap:14px; }
@media(min-width:768px){ .foot-trust{ flex-direction:row; align-items:center; justify-content:space-between; } }
.foot-trust-label { font-size:12px; text-transform:uppercase; letter-spacing:.08em; color:rgba(255,255,255,.45); font-weight:600; }
.foot-badges { display:flex; gap:8px; flex-wrap:wrap; }
.foot-badge { display:inline-flex; align-items:center; gap:8px; font-size:12px; font-weight:500; color:rgba(255,255,255,.85); background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.12); padding:8px 16px; border-radius:999px; }
/* Bottom bar */
.foot-bottom { border-top:1px solid rgba(255,255,255,.1); padding:20px 0 28px; display:flex; flex-wrap:wrap; align-items:center; gap:12px 24px; font-size:12px; color:rgba(255,255,255,.5); }
.foot-made { margin-left:auto; }
.foot-legal { display:flex; gap:16px; }
.foot-legal a { color:rgba(255,255,255,.5); text-decoration:none; transition:color .2s; }
.foot-legal a:hover { color:#fff; }
.foot-top { margin-left:auto; width:40px; height:40px; border-radius:50%; background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.12); color:#fff; cursor:pointer; display:inline-flex; align-items:center; justify-content:center; transition:all .25s; }
.foot-top:hover { background:#EA580C; border-color:#EA580C; transform:translateY(-2px); }
/* Mobile accordion */
.foot-acc-btn { display:none; }
@media(max-width:767px){
  .foot-wrap { padding:40px 24px 0; }
  .foot-grid { gap:0; padding-bottom:24px; }
  .foot-brand { padding-bottom:28px; }
  .foot-col { border-top:1px solid rgba(255,255,255,.08); }
  .foot-acc-btn { display:flex; width:100%; align-items:center; justify-content:space-between; background:none; border:none; padding:16px 0; cursor:pointer; min-height:44px; }
  .foot-acc-btn .foot-head { margin:0; padding:0; }
  .foot-acc-btn .foot-head::after { display:none; }
  .foot-acc-btn svg { transition:transform .3s ease; color:rgba(255,255,255,.6); }
  .foot-col.open .foot-acc-btn svg { transform:rotate(180deg); }
  .foot-acc-panel { max-height:0; overflow:hidden; transition:max-height .35s ease; }
  .foot-col.open .foot-acc-panel { max-height:400px; }
  .foot-bottom { justify-content:center; text-align:center; padding-bottom:100px; }
  .foot-made { margin-left:0; }
  .foot-top { position:fixed; bottom:84px; right:20px; z-index:55; background:#0B1F4B; box-shadow:0 8px 24px rgba(0,0,0,.3); }
}
/* Spin button spacing */
#floatingSpinTab { bottom:20px !important; right:20px !important; z-index:60 !important; }

/* ============ THEME TOGGLE ICON ============ */
.theme-toggle-icon { width:44px !important; height:44px !important; min-width:44px; border-radius:50% !important; display:inline-flex !important; align-items:center; justify-content:center; background:rgba(21,94,239,.08); border:1.5px solid rgba(21,94,239,.15); color:#155EEF; cursor:pointer; transition:all .25s ease; padding:0 !important; }
.theme-toggle-icon:hover { background:rgba(21,94,239,.15); transform:rotate(15deg); }
.theme-toggle-icon .icon-moon { display:none; }
.theme-toggle-icon .icon-sun { display:block; }
[data-theme="dark"] .theme-toggle-icon { background:rgba(255,255,255,.08); border-color:rgba(255,255,255,.15); color:#FCD34D; }
[data-theme="dark"] .theme-toggle-icon .icon-moon { display:block; }
[data-theme="dark"] .theme-toggle-icon .icon-sun { display:none; }
/* ============ LOGO RESPONSIVE ============ */
.site-logo img, .brand img, .nav-logo img { max-height:40px; width:auto; max-width:180px; object-fit:contain; }
@media(max-width:768px){ .site-logo img, .brand img, .nav-logo img { max-height:32px; max-width:140px; } }

/* ============ PREMIUM EXAM CARDS (no icons) ============ */
.exam-stat-pill.domain-badge { background:#F1F5F9; border:1px solid #E2E8F0; color:#334155; font-size:12.5px; padding:8px 16px; border-radius:999px; letter-spacing:.01em; }
.exam-card-checklist { background:linear-gradient(180deg,#F8FAFC 0%,#FFFFFF 100%); border-radius:14px; }
.domain-card { position:relative; overflow:hidden; }
.domain-card::before { content:""; position:absolute; top:0; left:0; right:0; height:4px; background:linear-gradient(90deg,#155EEF,#EA580C); opacity:0; transition:opacity .3s; }
.domain-card:hover::before { opacity:1; }
.domain-card:hover { transform:translateY(-4px); box-shadow:0 24px 48px -12px rgba(10,31,68,.15); }

/* Hamburger button - three bars */
.hamburger-btn { display:none; background:none; border:none; cursor:pointer; padding:10px; flex-direction:column; gap:5px; align-items:center; justify-content:center; }
.hamburger-btn span { display:block; width:22px; height:2px; background:#12346B; border-radius:2px; transition:all .3s ease; }
[data-theme="dark"] .hamburger-btn span { background:#fff; }
@media(max-width:1024px){ .hamburger-btn { display:flex !important; } }

/* UNIFIED RX NAVBAR & HOMEPAGE STYLES */
.rx-topbar { background:linear-gradient(90deg,#FF6500,#F52235); color:#fff; font-size:12px; }
.rx-topbar-inner { max-width:1440px; margin:0 auto; padding:6px 24px; display:flex; justify-content:space-between; align-items:center; }
.rx-topbar-right { display:flex; align-items:center; gap:16px; }
.rx-contact { color:#fff; text-decoration:none; }
.rx-social a { color:#fff; text-decoration:none; margin-left:10px; }
.rx-navbar { background:#fff; border-bottom:1px solid #eee; position:sticky; top:0; z-index:100; }
.rx-navbar-inner { max-width:1440px; margin:0 auto; padding:12px 24px; display:flex; align-items:center; justify-content:space-between; }
.rx-logo { display:flex; align-items:center; text-decoration:none; font-size:24px; font-weight:800; color:#07183F; }
.rx-logo img { height:40px; margin-right:8px; }
.rx-logo b { color:#FF6500; }
.rx-nav-links { display:flex; gap:24px; }
.rx-nav-links a { text-decoration:none; color:#07183F; font-size:14px; font-weight:500; }
.rx-nav-links a.active { color:#FF6500; font-weight:700; }
.rx-nav-actions { display:flex; align-items:center; gap:12px; }
.rx-btn-login { border:1.5px solid #FF6500; color:#FF6500; padding:8px 20px; border-radius:999px; text-decoration:none; font-weight:600; font-size:14px; }
.rx-btn-signup { background:#FF6500; color:#fff; padding:8px 20px; border-radius:999px; text-decoration:none; font-weight:600; font-size:14px; }
.rx-hero { background:#fff; position:relative; overflow:hidden; }
.rx-hero-inner { max-width:1440px; margin:0 auto; padding:40px 24px; display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center; }
.rx-hero h1 { font-size:52px; line-height:1.15; margin:0 0 16px; font-weight:800; }
.rx-h-navy { color:#07183F; } .rx-h-orange { color:#FF6500; }
.rx-h-badge { background:linear-gradient(90deg,#FF6500,#F52235); color:#fff; padding:4px 20px; border-radius:12px; display:inline-block; }
.rx-hero h2 { font-size:20px; color:#07183F; margin:0 0 12px; }
.rx-hero p { color:#475569; margin:0 0 24px; }
.rx-hero-btns { display:flex; gap:12px; }
.rx-btn-primary { background:linear-gradient(90deg,#FF6500,#F52235); color:#fff; padding:14px 28px; border-radius:999px; text-decoration:none; font-weight:700; }
.rx-btn-secondary { background:#fff; border:2px solid #FF6500; color:#07183F; padding:12px 26px; border-radius:999px; text-decoration:none; font-weight:700; }
.rx-hero-visual { position:relative; }
.rx-hero-visual img { width:100%; border-radius:16px; }
.rx-hero-handwritten { position:absolute; top:30px; right:30px; font-family:cursive; font-size:28px; color:#07183F; text-align:right; line-height:1.3; }
.rx-section { max-width:1440px; margin:0 auto; padding:50px 24px; }
.rx-heading-wrap { display:flex; align-items:center; justify-content:center; gap:16px; }
.rx-heading-wrap h2 { font-size:30px; color:#07183F; margin:0; font-weight:800; }
.rx-line { height:2px; width:80px; background:#FF6500; }
.rx-subtitle { text-align:center; color:#64748B; margin:8px 0 32px; }
.rx-cards-4 { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.rx-card { background:#FFFBF7; border:1px solid #FED7AA; border-radius:18px; padding:28px 20px; text-align:center; }
.rx-card-icon { font-size:40px; margin-bottom:12px; }
.rx-card-icon.rx-ai { background:#EDE9FE; width:56px; height:56px; border-radius:16px; display:flex; align-items:center; justify-content:center; font-weight:800; font-size:20px; margin:0 auto 12px; }
.rx-card h3 { font-size:17px; color:#07183F; margin:0 0 8px; }
.rx-card p { font-size:13px; color:#64748B; margin:0 0 16px; }
.rx-btn-card { background:linear-gradient(90deg,#FF6500,#F52235); color:#fff; padding:10px 22px; border-radius:999px; text-decoration:none; font-weight:600; font-size:13px; display:inline-block; }
.rx-features-6 { display:grid; grid-template-columns:repeat(6,1fr); gap:16px; text-align:center; }
.rx-f-icon { width:52px; height:52px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:24px; margin:0 auto 10px; }
.rx-f-icon.orange { background:#FFEDD5; } .rx-f-icon.red { background:#FEE2E2; } .rx-f-icon.blue { background:#DBEAFE; }
.rx-f-icon.purple { background:#EDE9FE; } .rx-f-icon.green { background:#D1FAE5; } .rx-f-icon.pink { background:#FCE7F3; }
.rx-feature span { font-size:12px; color:#07183F; font-weight:500; }
.rx-promo-grid { display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.rx-promo { border-radius:20px; padding:36px; display:flex; justify-content:space-between; }
.rx-promo.dark { background:linear-gradient(135deg,#07183F,#1558B8); color:#fff; }
.rx-promo.light { background:linear-gradient(135deg,#FFEDD5,#FFF7ED); color:#07183F; }
.rx-promo h3 { font-size:26px; margin:0 0 8px; }
.rx-promo ul { list-style:none; padding:0; margin:16px 0; }
.rx-promo ul li { padding:5px 0; font-size:14px; }
.rx-promo ul li:before { content:"✓ "; color:#FBBF24; font-weight:800; }
.rx-promo ul.green li:before { color:#21AD48; }
.rx-promo-img { font-size:80px; }
.rx-plans { display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.rx-plan { border-radius:20px; padding:36px; position:relative; }
.rx-plan.free { background:#fff; border:1px solid #FED7AA; }
.rx-plan.premium { background:linear-gradient(135deg,#FF6500,#F52235); color:#fff; }
.rx-plan h3 { font-size:22px; margin:0 0 16px; }
.rx-plan ul { list-style:none; padding:0; margin:0 0 24px; }
.rx-plan ul li { padding:6px 0; font-size:14px; }
.rx-plan ul li:before { content:"✓ "; color:#21AD48; font-weight:800; }
.rx-plan.premium ul li:before { color:#fff; }
.rx-seal { position:absolute; top:24px; right:24px; background:#FBBF24; color:#07183F; border-radius:50%; width:90px; height:90px; display:flex; align-items:center; justify-content:center; font-weight:800; font-size:11px; text-align:center; }
.rx-btn-outline { border:2px solid #FF6500; color:#FF6500; padding:12px 28px; border-radius:999px; text-decoration:none; font-weight:700; display:inline-block; }
.rx-btn-white { background:#fff; color:#07183F; padding:12px 28px; border-radius:999px; text-decoration:none; font-weight:700; display:inline-block; }
.rx-testi-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.rx-testi { background:#fff; border:1px solid #DBEAFE; border-radius:16px; padding:24px; }
.rx-testi p { font-style:italic; color:#334155; font-size:14px; }
.rx-testi-meta strong { display:block; color:#07183F; } .rx-testi-meta span { font-size:12px; color:#64748B; }
.rx-stars { color:#FBBF24; margin-top:8px; }
.rx-cta { background:linear-gradient(90deg,#FF6500,#F52235,#FBBF24); margin:0 24px 40px; border-radius:20px; padding:36px 48px; display:flex; align-items:center; justify-content:space-between; color:#fff; max-width:1392px; margin-left:auto; margin-right:auto; }
.rx-cta h2 { margin:0 0 8px; font-size:28px; } .rx-cta h2 em { font-style:italic; }
.rx-cta-trophy { font-size:56px; }
.rx-btn-white-lg { background:#fff; color:#FF6500; padding:16px 36px; border-radius:999px; text-decoration:none; font-weight:800; white-space:nowrap; }
@media(max-width:1024px){ .rx-cards-4 { grid-template-columns:1fr 1fr; } .rx-features-6 { grid-template-columns:repeat(3,1fr); } }
@media(max-width:768px){
  .rx-hero-inner, .rx-promo-grid, .rx-plans { grid-template-columns:1fr; }
  .rx-nav-links { display:none; } .rx-hero h1 { font-size:36px; }
  .rx-testi-3 { grid-template-columns:1fr; } .rx-cta { flex-direction:column; text-align:center; gap:20px; }
}
.rx-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#FF6500,#F52235);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex-shrink:0;margin-bottom:12px;}