/* CrackAnyExam.in — Shared Theme System */
/* Admin selects palette + layout via /admin/settings.html */
/* User toggles dark/light via nav button */
html,body{max-width:100vw;overflow-x:hidden}

/* ═══════════════════════════════════════════
   COLOR PALETTES (admin-switchable)
   ═══════════════════════════════════════════ */

/* Default: Indigo */
[data-palette="indigo"],:root{
  --accent:#6366f1;--accent-hover:#4f46e5;--accent-light:rgba(99,102,241,.1);
  --purple:#a78bfa;--green:#22c55e;--red:#f87171;--yellow:#fbbf24;
}
/* Ocean Blue */
[data-palette="ocean"]{
  --accent:#0ea5e9;--accent-hover:#0284c7;--accent-light:rgba(14,165,233,.1);
  --purple:#38bdf8;--green:#10b981;--red:#fb7185;--yellow:#f59e0b;
}
/* Emerald */
[data-palette="emerald"]{
  --accent:#10b981;--accent-hover:#059669;--accent-light:rgba(16,185,129,.1);
  --purple:#34d399;--green:#22c55e;--red:#f87171;--yellow:#fbbf24;
}
/* Rose */
[data-palette="rose"]{
  --accent:#f43f5e;--accent-hover:#e11d48;--accent-light:rgba(244,63,94,.1);
  --purple:#fb7185;--green:#22c55e;--red:#f87171;--yellow:#fbbf24;
}
/* Amber */
[data-palette="amber"]{
  --accent:#f59e0b;--accent-hover:#d97706;--accent-light:rgba(245,158,11,.1);
  --purple:#fbbf24;--green:#22c55e;--red:#f87171;--yellow:#fbbf24;
}

/* ═══════════════════════════════════════════
   DARK / LIGHT MODE
   ═══════════════════════════════════════════ */

/* Dark (default) */
:root,.dark{
  --bg:#0f172a;--bg-secondary:#1e293b;--card:#1e293b;
  --text:#f1f5f9;--dim:#94a3b8;--border:#334155;
  --nav-bg:rgba(30,41,59,.95);--shadow:0 4px 20px rgba(0,0,0,.3);
}
/* Light */
.light{
  --bg:#f8fafc;--bg-secondary:#ffffff;--card:#ffffff;
  --text:#1e293b;--dim:#64748b;--border:#e2e8f0;
  --nav-bg:rgba(255,255,255,.95);--shadow:0 2px 8px rgba(0,0,0,.06);
}

/* ═══════════════════════════════════════════
   LAYOUT MODES (admin-switchable)
   ═══════════════════════════════════════════ */

/* Grid (default) — card-based, compact */
.layout-grid{--content-max:1200px;--card-radius:12px;--spacing:1rem}
/* Minimal (Notion-like) — spacious, content-focused */
.layout-minimal{--content-max:900px;--card-radius:8px;--spacing:1.5rem}
.layout-minimal .card{border:none;background:transparent;padding:0 0 1.5rem;border-bottom:1px solid var(--border);border-radius:0}
.layout-minimal .exam-grid{grid-template-columns:1fr;gap:0}
.layout-minimal .exam-mini{border-radius:0;border:none;border-bottom:1px solid var(--border);padding:1rem 0}

/* ═══════════════════════════════════════════
   BASE RESET & TYPOGRAPHY
   ═══════════════════════════════════════════ */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.6;
  transition:background .3s,color .3s;
}
a{color:var(--accent);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent-hover)}

/* ═══════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:var(--nav-bg);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  padding:0 2rem;height:52px;display:flex;align-items:center;justify-content:space-between;
}
.nav-logo{
  font-size:1.1rem;font-weight:800;
  background:linear-gradient(135deg,var(--accent),var(--purple));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.nav-links{display:flex;gap:1.5rem;align-items:center}
.nav-links a{color:var(--dim);font-size:.82rem;font-weight:500}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{color:var(--accent)}

/* Buttons */
.btn{padding:.45rem 1rem;border-radius:8px;font-size:.8rem;font-weight:600;border:none;cursor:pointer;transition:all .2s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover)}
.btn-outline{border:1px solid var(--border);color:var(--dim);background:none}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-green{background:var(--green);color:#fff}
.btn-login{background:var(--accent);color:#fff;padding:.4rem .9rem;border-radius:8px;font-size:.78rem;font-weight:600;text-decoration:none}

/* Theme Toggle */
.theme-toggle{
  background:none;border:1px solid var(--border);border-radius:8px;
  padding:.3rem .5rem;cursor:pointer;font-size:.85rem;color:var(--dim);
}

/* User Badge */
.user-badge{
  display:flex;align-items:center;gap:.5rem;
  background:var(--bg);padding:.3rem .7rem;border-radius:20px;border:1px solid var(--border);
}
.user-avatar{
  width:26px;height:26px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--purple));
  display:flex;align-items:center;justify-content:center;
  font-size:.7rem;font-weight:700;color:#fff;
}
.user-name{font-size:.78rem;font-weight:600}
.plan-badge{
  font-size:.6rem;padding:.2rem .5rem;border-radius:10px;
  background:linear-gradient(135deg,var(--accent),var(--purple));color:#fff;font-weight:700;
}

/* ═══════════════════════════════════════════
   CARDS & CONTAINERS
   ═══════════════════════════════════════════ */
.container{max-width:var(--content-max,1200px);margin:0 auto;padding:60px 1.5rem 2rem}
.card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--card-radius,12px);padding:1.2rem;margin-bottom:var(--spacing,1rem);
  transition:all .2s;
}
.card:hover{border-color:var(--accent)}
.card h3{font-size:.9rem;margin-bottom:.6rem;color:var(--purple)}
.card p,.card li{font-size:.85rem;color:var(--dim);line-height:1.7}

/* ═══════════════════════════════════════════
   EXAM GRID
   ═══════════════════════════════════════════ */
.exam-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
  gap:.8rem;max-width:var(--content-max,1200px);margin:0 auto;padding:0 1.5rem;
}
.exam-mini{
  background:var(--card);border:1px solid var(--border);border-radius:10px;
  padding:.8rem 1rem;display:flex;align-items:center;gap:.8rem;
  text-decoration:none;color:inherit;transition:all .2s;
}
.exam-mini:hover{border-color:var(--accent);transform:translateY(-1px)}
.exam-mini .icon{font-size:1.3rem}
.exam-mini .info h4{font-size:.82rem;font-weight:600;margin-bottom:.15rem}
.exam-mini .info p{font-size:.65rem;color:var(--dim)}
.exam-mini .qs{font-size:.6rem;color:var(--accent);font-weight:700;white-space:nowrap;margin-left:auto}
.exam-mini.soon{opacity:.4;pointer-events:none}

/* ═══════════════════════════════════════════
   TABS
   ═══════════════════════════════════════════ */
.tabs{display:flex;gap:.3rem;flex-wrap:wrap;border-bottom:2px solid var(--border);padding-bottom:0}
.tab-btn{
  padding:.6rem 1rem;border:none;background:none;color:var(--dim);
  font-weight:600;font-size:.8rem;cursor:pointer;
  border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .2s;
}
.tab-btn:hover{color:var(--text)}
.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent)}

/* Category Filter Tabs */
.cat-tabs{display:flex;justify-content:center;gap:.5rem;flex-wrap:wrap;padding:0 1rem;margin-bottom:2rem}
.cat-tab{
  padding:.4rem .8rem;border-radius:20px;font-size:.75rem;font-weight:600;
  border:1px solid var(--border);background:none;color:var(--dim);cursor:pointer;
}
.cat-tab.active,.cat-tab:hover{background:var(--accent);color:#fff;border-color:var(--accent)}

/* ═══════════════════════════════════════════
   MCQ COMPONENTS
   ═══════════════════════════════════════════ */
.mcq-topics{display:flex;gap:.4rem;flex-wrap:wrap;margin-bottom:1.5rem}
.mcq-topic-btn{
  padding:.4rem .8rem;border-radius:16px;font-size:.75rem;font-weight:600;
  border:1px solid var(--border);background:none;color:var(--dim);cursor:pointer;
}
.mcq-topic-btn:hover,.mcq-topic-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}

.q-card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:1rem;margin-bottom:.8rem}
.q-num{font-size:.65rem;color:var(--accent);font-weight:700;margin-bottom:.4rem}
.q-text{font-size:.88rem;line-height:1.5;margin-bottom:.8rem}
.opt{
  padding:.5rem .8rem;border:1px solid var(--border);border-radius:6px;
  margin-bottom:.4rem;cursor:pointer;font-size:.82rem;transition:all .15s;
}
.opt:hover{border-color:var(--accent);background:var(--accent-light)}
.opt.correct{border-color:var(--green);background:rgba(34,197,94,.12);color:var(--green)}
.opt.wrong{border-color:var(--red);background:rgba(248,113,113,.12);color:var(--red)}

/* ═══════════════════════════════════════════
   STATS & GAMIFICATION
   ═══════════════════════════════════════════ */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-bottom:2rem}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1rem;text-align:center}
.stat-val{font-size:1.5rem;font-weight:800;color:var(--accent)}
.stat-lbl{font-size:.68rem;color:var(--dim);text-transform:uppercase;letter-spacing:.5px}

.game-row{display:flex;gap:1rem;margin-bottom:2rem}
.game-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1rem;flex:1;text-align:center}
.game-icon{font-size:1.5rem;margin-bottom:.4rem}
.game-val{font-size:1.2rem;font-weight:800}
.game-label{font-size:.68rem;color:var(--dim)}

/* ═══════════════════════════════════════════
   COUNTDOWN & TIMERS
   ═══════════════════════════════════════════ */
.countdown-banner{
  background:linear-gradient(135deg,rgba(251,191,36,.08),rgba(248,113,113,.08));
  border:1px solid rgba(251,191,36,.25);border-radius:12px;
  padding:1rem 1.5rem;margin-bottom:1.5rem;
  display:flex;align-items:center;justify-content:space-between;
}
.countdown-timer{display:flex;gap:.4rem}
.countdown-unit{text-align:center;background:var(--card);border-radius:8px;padding:.35rem .5rem;min-width:42px}
.countdown-unit .num{font-size:1rem;font-weight:800;color:var(--yellow)}
.countdown-unit .lbl{font-size:.5rem;color:var(--dim);text-transform:uppercase}

.practice-timer{
  display:flex;justify-content:space-between;align-items:center;
  background:var(--card);border:1px solid var(--border);border-radius:10px;
  padding:.8rem 1.2rem;margin-bottom:1.2rem;
}
.timer-display{font-size:1.3rem;font-weight:800;color:var(--yellow);font-variant-numeric:tabular-nums}

/* ═══════════════════════════════════════════
   PRICING
   ═══════════════════════════════════════════ */
.pricing-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:.8rem}
.price-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:1.2rem;text-align:center}
.price-card.featured{border-color:var(--accent);background:linear-gradient(135deg,var(--accent-light),rgba(139,92,246,.05))}
.price-name{font-size:.85rem;font-weight:700;margin-bottom:.4rem}
.price-amt{font-size:1.8rem;font-weight:800;color:var(--accent)}
.price-per{font-size:.65rem;color:var(--dim)}
.price-features{list-style:none;margin:.8rem 0;text-align:left}
.price-features li{font-size:.75rem;color:var(--dim);padding:.25rem 0 .25rem 1rem;position:relative}
.price-features li::before{content:"✓";position:absolute;left:0;color:var(--green)}

/* ═══════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════ */
.footer{max-width:var(--content-max,1200px);margin:3rem auto 0;padding:1.5rem;border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;font-size:.75rem}
.footer-col h4{font-weight:700;color:var(--text);margin-bottom:.5rem;font-size:.75rem}
.footer-col a{display:block;color:var(--dim);margin-bottom:.3rem;text-decoration:none}
.footer-col a:hover{color:var(--accent)}
.footer-copy{text-align:center;color:var(--dim);font-size:.65rem;margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--border)}

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */
@media(max-width:768px){
  .nav{padding:0 .8rem;height:48px}
  .nav-logo{font-size:.9rem}
  .nav-links{gap:.5rem}
  .nav-links>a{display:none}
  .nav-links>a[href*="login"]{display:inline-block;font-size:.72rem;color:var(--accent)!important}
  .nav-links .theme-toggle{display:inline-block;font-size:.8rem;padding:.2rem .3rem}
  .nav-links .btn-login{display:inline-block;padding:.3rem .5rem;font-size:.68rem}
  .nav-links .user-menu{display:flex}
  .nav-links .plan-badge{font-size:.55rem;padding:.15rem .3rem}
  .nav-links select{display:none}
  .user-name{display:none}
  .user-caret{display:none}
  .user-avatar{width:28px;height:28px;font-size:.7rem}
  .sidebar{display:none}
  .page-layout{flex-direction:column}
  .content-area{padding:1rem!important}
  .exam-grid{grid-template-columns:1fr;padding:0 .8rem}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .game-row{flex-wrap:wrap}
  .game-card{flex:1 1 45%}
  .pricing-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .countdown-banner{flex-direction:column;gap:.8rem;text-align:center}
  .practice-timer{flex-direction:column;gap:.5rem;text-align:center}
  .mcq-topics{gap:.3rem}
  .mcq-topic-btn{padding:.3rem .5rem;font-size:.65rem}
  .overview-grid{grid-template-columns:1fr}
  .q-card{padding:.8rem}
  .q-text{font-size:.82rem}
  .opt{font-size:.78rem;padding:.4rem .6rem}
}
@media(max-width:480px){
  .container{padding:52px .8rem 1.5rem}
  .footer-grid{grid-template-columns:1fr}
  body{overflow-x:hidden}
}

/* MCQ Difficulty badges */
.q-diff{font-size:.55rem;padding:.15rem .4rem;border-radius:4px;font-weight:700}
.q-diff.easy{background:rgba(34,197,94,.1);color:var(--green)}
.q-diff.medium{background:rgba(251,191,36,.1);color:var(--yellow)}
.q-diff.hard{background:rgba(248,113,113,.1);color:var(--red)}
.q-card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:1rem;margin-bottom:.8rem}
.q-num{font-size:.65rem;color:var(--accent);font-weight:700}
.q-text{font-size:.86rem;line-height:1.5;margin-bottom:.8rem}
.opt{padding:.5rem .8rem;border:1px solid var(--border);border-radius:6px;margin-bottom:.4rem;cursor:pointer;font-size:.82rem;transition:all .15s}
.opt:hover{border-color:var(--accent);background:rgba(99,102,241,.06)}
.opt.correct{border-color:var(--green);background:rgba(34,197,94,.1);color:var(--green)}
.opt.wrong{border-color:var(--red);background:rgba(248,113,113,.1);color:var(--red)}
.mcq-topics{margin-bottom:1rem}
.mcq-tree{border:1px solid var(--border);border-radius:10px;padding:.5rem;background:var(--card)}
.mcq-tree-item{color:var(--dim);transition:all .15s}
.mcq-tree-item:hover{background:rgba(99,102,241,.06);color:var(--text)}
.mcq-tree-item.active{background:rgba(99,102,241,.1);color:var(--accent);font-weight:600}
.mcq-tree-topic{margin-bottom:.2rem}
.mcq-topic-btn{padding:.4rem .7rem;border-radius:16px;font-size:.72rem;font-weight:600;border:1px solid var(--border);background:none;color:var(--dim);cursor:pointer;transition:all .15s}
.mcq-topic-btn:hover,.mcq-topic-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}

/* User menu dropdown */
.user-menu{position:relative;cursor:pointer}
.user-badge{display:flex;align-items:center;gap:.4rem}
.user-avatar{width:24px;height:24px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:.65rem;font-weight:800;color:#fff}
.user-name{font-size:.75rem;font-weight:600}
.user-caret{font-size:.6rem;color:var(--dim);margin-left:.2rem}
.user-dropdown{display:none;position:absolute;top:100%;right:0;margin-top:.5rem;background:var(--card);border:1px solid var(--border);border-radius:10px;min-width:160px;padding:.4rem 0;box-shadow:0 8px 24px rgba(0,0,0,.3);z-index:200}
.user-menu.open .user-dropdown{display:block}
.user-dropdown-item{display:block;padding:.5rem 1rem;font-size:.78rem;color:var(--text);text-decoration:none;transition:background .15s}
.user-dropdown-item:hover{background:rgba(99,102,241,.08);color:var(--accent)}

/* Animations */
@keyframes fadeInUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}
@keyframes streak-glow{0%,100%{box-shadow:0 0 0 rgba(99,102,241,0)}50%{box-shadow:0 0 12px rgba(99,102,241,.3)}}
.q-card{animation:fadeInUp .3s ease}
.game-row>div{animation:fadeInUp .4s ease backwards}
.game-row>div:nth-child(2){animation-delay:.1s}
.game-row>div:nth-child(3){animation-delay:.2s}
.stats-row>div{animation:fadeInUp .3s ease backwards}
.stats-row>div:nth-child(2){animation-delay:.05s}
.stats-row>div:nth-child(3){animation-delay:.1s}
.stats-row>div:nth-child(4){animation-delay:.15s}
.exam-card:hover,.exam-mini:hover{animation:pulse .3s ease}
.opt.correct{animation:pulse .3s ease}
.plan-badge{animation:streak-glow 2s infinite}

/* Version badge - now in footer, not fixed */
.version-badge{display:none}