/* ══════════════════════════════════════════════════════════
   EduGames — Dark Theme Design System
   "Egyptian Scholar's Studio — Night Mode"
   ══════════════════════════════════════════════════════════ */

/* ── TOKENS ─────────────────────────────────────────────────── */
:root {
  --bg:        #0e1621;
  --bg2:       #111927;
  --card:      #1a2332;
  --card2:     #1e2a3d;
  --border:    rgba(255,255,255,.08);
  --border2:   rgba(255,255,255,.13);

  --text:      #ffffff;
  --text2:     #8892a4;
  --text3:     #5a6478;

  --cyan:      #00d4ff;
  --cyan2:     #00aacc;
  --cyan-glow: rgba(0,212,255,.18);
  --purple:    #6c63ff;
  --purple2:   #4f46e5;
  --orange:    #ff8c00;
  --orange2:   #e07800;
  --red:       #ff4757;
  --green:     #2ed573;
  --gold:      #ffd32a;

  --grad-btn:  linear-gradient(135deg, #00d4ff 0%, #6c63ff 100%);
  --grad-card: linear-gradient(135deg, #1a2332 0%, #1e2a3d 100%);
  --grad-hero: linear-gradient(135deg, #1a2332 0%, #141e2e 100%);

  --topbar-h:  64px;
  --bnav-h:    76px;

  --r-s: 12px;
  --r-m: 18px;
  --r-l: 24px;
  --r-xl:32px;

  --sh: 0 8px 32px rgba(0,0,0,.4);
  --sh-cyan: 0 0 24px rgba(0,212,255,.2);
  --sh-glow: 0 4px 20px rgba(0,212,255,.15);

  --ease: cubic-bezier(.2,.8,.2,1);
  --fast: 150ms var(--ease);
  --med:  280ms var(--ease);
  --slow: 480ms var(--ease);

  --font-d: "Marhey","Cairo",sans-serif;
  --font-b: "Cairo","Tajawal",sans-serif;
}
html[data-lang=en],html[data-lang=fr],html[data-lang=de] {
  --font-d: "Fraunces","Georgia",serif;
  --font-b: "Manrope",system-ui,sans-serif;
}

*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html,body { height:100%; overflow:hidden; }
body {
  font-family: var(--font-b);
  font-size: 15px;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
button { font:inherit; cursor:pointer; border:none; background:none; }
img    { display:block; max-width:100%; }
input,select,textarea { font:inherit; }

/* ══ AUTH SHELL ═══════════════════════════════════════════════ */
.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--bg);
}
.auth-bg-mesh {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 80% 20%, rgba(0,212,255,.07) 0%, transparent 70%),
    radial-gradient(ellipse 400px 600px at 20% 80%, rgba(108,99,255,.08) 0%, transparent 70%);
  pointer-events: none;
}
.auth-wrap {
  position: relative; z-index: 1;
  width: min(420px, calc(100vw - 32px));
  animation: slide-up var(--slow) both;
}
.auth-brand {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 24px; padding: 0 4px;
}
.auth-logo-ring {
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(0,212,255,.08);
  border: 1px solid rgba(0,212,255,.2);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.auth-brand-name { font-family:var(--font-d); font-size:22px; font-weight:700; color:var(--text); }
.auth-brand-sub  { font-size:13px; color:var(--text2); }

.auth-card {
  background: var(--card);
  border: 1px solid var(--border2);
  border-radius: var(--r-xl);
  padding: 32px 28px;
  box-shadow: var(--sh);
  position: relative; overflow: hidden;
}
.auth-card::before {
  content: "";
  position: absolute; top:0; inset-inline-start:0;
  width: 100%; height: 2px;
  background: var(--grad-btn);
}
.auth-illust  { font-size:48px; text-align:center; margin-bottom:12px; animation:float 3s ease-in-out infinite; }
.auth-title   { font-family:var(--font-d); font-size:26px; font-weight:700; margin-bottom:4px; color:var(--text); }
.auth-sub     { font-size:14px; color:var(--text2); margin-bottom:22px; line-height:1.5; }
.auth-divider {
  display:flex; align-items:center; gap:12px;
  font-size:12px; color:var(--text3); margin:14px 0;
}
.auth-divider::before,.auth-divider::after {
  content:""; flex:1; height:1px;
  background: var(--border2);
}
.auth-links { display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px; margin-top:14px; font-size:13px; }
.auth-link  { color:var(--cyan); font-weight:600; cursor:pointer; }
.auth-link:hover { color:var(--purple); }

/* Auth fields */
.field { display:flex; flex-direction:column; gap:5px; margin-bottom:12px; }
.field-label { font-size:12px; font-weight:700; color:var(--text2); letter-spacing:.04em; }
.field-input {
  padding:12px 14px;
  border: 1.5px solid var(--border2);
  border-radius: var(--r-s);
  background: var(--bg2);
  color: var(--text);
  font:inherit; font-size:15px;
  transition: border-color var(--fast), box-shadow var(--fast);
  outline: none; width:100%;
}
.field-input:focus { border-color:var(--cyan); box-shadow:0 0 0 3px var(--cyan-glow); }
.field-input::placeholder { color:var(--text3); }

/* Auth buttons */
.btn-auth-primary {
  width:100%; padding:13px;
  border-radius: 999px;
  background: var(--grad-btn);
  color: white; font:inherit; font-weight:700; font-size:15px;
  cursor:pointer; border:none;
  transition: transform var(--fast), box-shadow var(--fast), opacity var(--fast);
  margin-bottom: 4px;
}
.btn-auth-primary:hover { transform:translateY(-1px); box-shadow:var(--sh-glow); }
.btn-auth-primary:active { transform:scale(.98); }
.btn-auth-primary:disabled { opacity:.5; cursor:not-allowed; }
.btn-google {
  width:100%; padding:12px;
  border-radius:999px;
  background:var(--card2);
  border:1px solid var(--border2);
  color:var(--text); font:inherit; font-size:14px; font-weight:600;
  cursor:pointer; display:flex; align-items:center; justify-content:center; gap:10px;
  margin-bottom:14px;
  transition:background var(--fast);
}
.btn-google:hover { background:rgba(255,255,255,.05); }
.field-err { color:var(--red); font-size:13px; min-height:16px; margin-bottom:4px; }

/* ══ APP SHELL ════════════════════════════════════════════════ */
.app-shell {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background: var(--bg);
}

/* ── TOP BAR ─────────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 18px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  position: relative; z-index: 20;
}
.topbar-left  { display:flex; align-items:center; gap:10px; }
.topbar-right { display:flex; align-items:center; gap:8px; }

.tb-avatar-btn {
  width: 40px; height: 40px; border-radius:50%;
  padding:0; overflow:hidden;
  border: 2px solid var(--cyan);
  flex-shrink:0;
  transition: box-shadow var(--fast);
}
.tb-avatar-btn:hover { box-shadow: var(--sh-cyan); }
.tb-avatar {
  width:100%; height:100%; object-fit:cover;
  background: var(--card2);
}
.tb-icon-btn {
  width:38px; height:38px; border-radius:50%;
  background: var(--card);
  border: 1px solid var(--border2);
  display:flex; align-items:center; justify-content:center;
  font-size:17px; position:relative;
  transition: background var(--fast);
}
.tb-icon-btn:hover { background:var(--card2); }
.tb-bell { font-size:16px; }
.tb-badge {
  position:absolute; top:-2px; inset-inline-end:-2px;
  min-width:18px; height:18px; padding:0 4px;
  border-radius:999px;
  background:var(--red); color:white;
  font-size:10px; font-weight:700;
  display:flex; align-items:center; justify-content:center;
  border:2px solid var(--bg);
}
.tb-flag { font-size:18px; }
.topbar-title {
  font-family: var(--font-d);
  font-size: 18px; font-weight: 700;
  color: var(--text);
  letter-spacing:.01em;
}

/* ── SCREEN AREA ─────────────────────────────────────────────── */
.screen-area {
  flex:1; overflow-y:auto;
  padding: 18px 16px calc(var(--bnav-h) + 18px);
  scroll-behavior: smooth;
}

/* ── BOTTOM NAV ──────────────────────────────────────────────── */
.bottom-nav {
  height: var(--bnav-h);
  display: grid;
  grid-template-columns: repeat(5,1fr);
  background: var(--card);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  position:relative; z-index:20;
}
.bnav-item {
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:4px; padding:8px 4px 10px;
  color: var(--text3);
  font-size:10px; font-weight:600;
  transition: color var(--fast), transform var(--fast);
}
.bnav-item small { font:inherit; font-size:10px; }
.bnav-ico { width:20px; height:20px; stroke:currentColor; }
.bnav-item.active { color:var(--cyan); }
.bnav-item:active:not(.bnav-create) { transform:scale(.88); }

.bnav-create {
  color: var(--text2);
  position:relative;
}
.bnav-plus-ring {
  width:50px; height:50px; border-radius:50%;
  background: var(--orange);
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 4px 20px rgba(255,140,0,.4);
  margin-bottom:2px;
  transition: transform var(--fast), box-shadow var(--fast);
}
.bnav-create:active .bnav-plus-ring {
  transform: scale(.9);
  box-shadow: 0 2px 10px rgba(255,140,0,.3);
}
.bnav-create small { color:var(--text2); font-size:10px; }

/* ══ UNIVERSAL COMPONENTS ═════════════════════════════════════ */

/* Screen animation */
.screen { animation: slide-up var(--med) both; }

/* Cards */
.dk-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  overflow:hidden;
}
.dk-card-sm { border-radius: var(--r-m); }

/* Section header */
.sec-head {
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom:12px;
}
.sec-title {
  font-family: var(--font-d);
  font-size:16px; font-weight:700; color:var(--text);
  display:flex; align-items:center; gap:8px;
}
.sec-title::before {
  content:""; width:4px; height:18px;
  background: var(--cyan);
  border-radius:4px; display:inline-block;
}
.sec-action { font-size:12px; font-weight:600; color:var(--cyan); cursor:pointer; }
.sec-action:hover { color:var(--purple); }

/* Big gradient button */
.btn-grad {
  width:100%; padding:16px 20px;
  border-radius:var(--r-l);
  background: var(--grad-btn);
  color:white; font:inherit; font-weight:700; font-size:17px;
  cursor:pointer; border:none;
  display:flex; align-items:center; justify-content:center; gap:8px;
  transition:transform var(--fast), box-shadow var(--fast);
  box-shadow: 0 4px 24px rgba(0,212,255,.25);
}
.btn-grad:hover { transform:translateY(-2px); box-shadow:0 8px 32px rgba(0,212,255,.35); }
.btn-grad:active { transform:scale(.98); }

/* Secondary button */
.btn-dk {
  padding:14px 16px;
  border-radius:var(--r-m);
  background:var(--card2);
  border:1px solid var(--border2);
  color:var(--text); font:inherit; font-weight:700; font-size:14px;
  cursor:pointer;
  display:flex; align-items:center; justify-content:center; gap:8px;
  transition:all var(--fast);
}
.btn-dk:hover { background:rgba(255,255,255,.05); border-color:var(--cyan); }
.btn-dk:active { transform:scale(.97); }

/* Ghost button */
.btn-ghost-dk {
  padding:11px 20px;
  border-radius:999px;
  border:1px solid var(--border2);
  background:transparent; color:var(--text2);
  font:inherit; font-weight:600; font-size:14px; cursor:pointer;
  transition:all var(--fast);
}
.btn-ghost-dk:hover { border-color:var(--cyan); color:var(--cyan); }

/* Loader */
.loader {
  width:32px; height:32px; border-radius:50%;
  border:3px solid var(--border2); border-top-color:var(--cyan);
  animation:spin .8s linear infinite; margin:40px auto;
}

/* Empty state */
.empty-state {
  padding:48px 24px; text-align:center;
  border:1.5px dashed var(--border2);
  border-radius:var(--r-l); color:var(--text2);
  font-size:14px; line-height:1.6;
  display:flex; flex-direction:column; align-items:center; gap:12px;
}
.empty-icon { font-size:44px; }

/* Badge */
.badge-dk {
  display:inline-flex; align-items:center; gap:5px;
  padding:4px 12px; border-radius:999px;
  font-size:12px; font-weight:700;
}
.badge-cyan  { background:rgba(0,212,255,.12); color:var(--cyan); border:1px solid rgba(0,212,255,.25); }
.badge-gold  { background:rgba(255,211,42,.1);  color:var(--gold); border:1px solid rgba(255,211,42,.25); }
.badge-red   { background:rgba(255,71,87,.12);  color:var(--red);  border:1px solid rgba(255,71,87,.25); }
.badge-green { background:rgba(46,213,115,.12); color:var(--green);border:1px solid rgba(46,213,115,.25); }

/* Divider */
.divider { height:1px; background:var(--border); margin:16px 0; }

/* Back button */
.back-btn {
  display:inline-flex; align-items:center; gap:6px;
  font-size:14px; font-weight:600; color:var(--text2);
  cursor:pointer; padding:6px 0; background:none; border:none;
  margin-bottom:8px;
}
.back-btn:hover { color:var(--cyan); }

/* Screen header */
.screen-header { margin-bottom:20px; }
.screen-kicker { font-size:12px; font-weight:700; letter-spacing:.1em; color:var(--cyan); text-transform:uppercase; display:block; margin-bottom:4px; }
.screen-title  { font-family:var(--font-d); font-size:clamp(24px,4vw,34px); font-weight:700; color:var(--text); margin-bottom:6px; }
.screen-sub    { font-size:14px; color:var(--text2); line-height:1.6; }

/* Toast */
.toast {
  position:fixed; bottom:calc(var(--bnav-h) + 16px); left:50%;
  transform:translateX(-50%); z-index:300;
  padding:12px 22px; background:var(--card2);
  border:1px solid var(--border2);
  color:var(--text); border-radius:999px;
  font-size:14px; font-weight:600;
  box-shadow:var(--sh); white-space:nowrap;
  animation:slide-up var(--med) both;
}

/* Overlays */
.scrim { position:fixed; inset:0; z-index:80; background:rgba(5,10,18,.6); backdrop-filter:blur(3px); }
.popover {
  position:fixed; inset-block-start:50%; inset-inline-start:50%;
  transform:translate(-50%,-50%); z-index:90;
  width:min(400px,calc(100vw - 32px));
  background:var(--card2); border:1px solid var(--border2);
  border-radius:var(--r-l); padding:24px;
  box-shadow:var(--sh); animation:pop-in var(--med) both;
}
html[dir=rtl] .popover { transform:translate(50%,-50%); }
.popover-close { position:absolute; top:12px; inset-inline-end:14px; font-size:18px; color:var(--text2); width:28px; height:28px; display:flex; align-items:center; justify-content:center; }
.popover h4 { font-family:var(--font-d); font-size:19px; margin:0 0 8px; color:var(--text); }
.popover p  { margin:0; color:var(--text2); font-size:14px; line-height:1.65; }
.lang-panel {
  position:fixed; top:calc(var(--topbar-h) + 8px); inset-inline-start:18px;
  z-index:90; background:var(--card2); border:1px solid var(--border2);
  border-radius:var(--r-m); padding:6px; box-shadow:var(--sh);
  display:flex; flex-direction:column; gap:2px; min-width:155px;
  animation:pop-in var(--fast) both;
}
.lang-opt { padding:10px 14px; border-radius:var(--r-s); text-align:start; font:inherit; font-size:14px; color:var(--text); transition:background var(--fast); }
.lang-opt:hover  { background:rgba(255,255,255,.05); }
.lang-opt.active { background:rgba(0,212,255,.12); color:var(--cyan); }

/* Fullscreen engine */
.fullscreen-engine {
  position:fixed; inset:0; z-index:200;
  background:var(--bg);
  display:flex; flex-direction:column; overflow:hidden;
}
.engine-topbar {
  height:52px; background:var(--card);
  border-bottom:1px solid var(--border);
  display:flex; align-items:center; gap:14px; padding:0 18px; flex-shrink:0;
}
.engine-body   { flex:1; overflow-y:auto; padding:20px 16px; }
.engine-back   { display:flex; align-items:center; gap:6px; font-size:14px; font-weight:700; color:var(--text2); cursor:pointer; }
.engine-back:hover { color:var(--cyan); }
.engine-title  { font-family:var(--font-d); font-size:15px; font-weight:700; color:var(--text); flex:1; text-align:center; }
.engine-prog-wrap { width:80px; height:6px; background:var(--border2); border-radius:999px; overflow:hidden; }
.engine-prog-fill { height:100%; background:var(--grad-btn); border-radius:999px; transition:width var(--med); }

/* ══ HOME SCREEN ══════════════════════════════════════════════ */

/* Hero user card */
.hero-card {
  background: var(--grad-hero);
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  padding: 20px 18px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px;
  position: relative; overflow:hidden;
  margin-bottom: 14px;
}
.hero-card::before {
  content:""; position:absolute; top:0; inset-inline-start:0;
  width:100%; height:2px; background:var(--grad-btn);
}
.hero-card-text { flex:1; }
.hero-greeting  { font-size:13px; color:var(--text2); margin-bottom:4px; }
.hero-name      { font-family:var(--font-d); font-size:26px; font-weight:700; color:var(--text); line-height:1.1; margin-bottom:4px; }
.hero-meta      { font-size:13px; color:var(--text2); margin-bottom:10px; }
.hero-badge     {
  display:inline-flex; align-items:center; gap:6px;
  padding:5px 14px; border-radius:999px;
  background:rgba(0,212,255,.08); border:1px solid rgba(0,212,255,.2);
  color:var(--cyan); font-size:12.5px; font-weight:700;
}
.hero-avatar-wrap { flex-shrink:0; }
.hero-avatar {
  width:64px; height:64px; border-radius:50%;
  border:2.5px solid var(--cyan);
  object-fit:cover; background:var(--card2);
  box-shadow:var(--sh-cyan);
}

/* Motivational tip */
.tip-card {
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-m);
  padding:14px 18px;
  font-size:15px; font-weight:600; color:var(--text);
  margin-bottom:14px;
  display:flex; align-items:center; gap:10px;
}
.tip-card .tip-icon { font-size:20px; flex-shrink:0; }

/* Stats 2×2 grid */
.stats-grid-2x2 {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
  margin-bottom:20px;
}
.stat-dk {
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-m);
  padding:16px 14px;
  display:flex; align-items:center; justify-content:space-between;
}
.stat-dk-left  { display:flex; flex-direction:column; gap:4px; }
.stat-dk-num   {
  font-family:var(--font-d); font-size:28px; font-weight:700;
  color:var(--cyan); line-height:1;
}
.stat-dk-num.white { color:var(--text); }
.stat-dk-label { font-size:12px; color:var(--text2); }
.stat-dk-icon  { font-size:28px; opacity:.9; }

/* Section label with left bar */
.sec-label {
  display:flex; align-items:center; gap:10px;
  font-family:var(--font-d); font-size:16px; font-weight:700; color:var(--text);
  margin-bottom:12px;
}
.sec-label::before {
  content:""; width:4px; height:20px; border-radius:4px;
  background:var(--cyan); flex-shrink:0;
}

/* Action buttons row */
.action-row {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
  margin-top:10px;
}

/* ══ CREATE WIZARD ════════════════════════════════════════════ */
.wiz-progress {
  display:flex; align-items:center; gap:6px; margin-bottom:18px;
}
.wiz-step {
  flex:1; height:3px; border-radius:999px;
  background:var(--border2);
  transition:background var(--med);
}
.wiz-step.done { background:var(--cyan); }
.wiz-step.active { background:var(--purple); }

.dk-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(150px,1fr)); gap:10px; }
.dk-grid-lg { grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); }

.dk-game-card {
  background:var(--card);
  border:1.5px solid var(--border);
  border-radius:var(--r-m);
  padding:18px 14px;
  cursor:pointer; text-align:start;
  display:flex; flex-direction:column; gap:8px;
  position:relative; overflow:hidden;
  transition:border-color var(--fast), transform var(--fast), box-shadow var(--fast);
}
.dk-game-card:hover {
  border-color:var(--cyan);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(0,212,255,.1);
}
.dk-game-card:active { transform:scale(.97); }
.dk-card-icon {
  width:48px; height:48px; border-radius:var(--r-s);
  background:rgba(0,212,255,.1); border:1px solid rgba(0,212,255,.15);
  display:flex; align-items:center; justify-content:center;
  font-size:24px;
}
.dk-card-title { font-family:var(--font-d); font-size:15px; font-weight:700; color:var(--text); }
.dk-card-desc  { font-size:12.5px; color:var(--text2); line-height:1.45; }
.dk-info-btn {
  position:absolute; top:10px; inset-inline-end:10px;
  width:22px; height:22px; border-radius:50%;
  border:1px solid var(--border2); color:var(--text2);
  font-style:italic; font-weight:700; font-size:11px;
  display:flex; align-items:center; justify-content:center;
  z-index:2; transition:background var(--fast), color var(--fast);
}
.dk-info-btn:hover { background:var(--cyan); color:var(--bg); border-color:var(--cyan); }

/* Category tabs */
.cat-tabs {
  display:flex; gap:6px; margin-bottom:16px; overflow-x:auto;
  scrollbar-width:none; padding-bottom:2px;
}
.cat-tabs::-webkit-scrollbar { display:none; }
.cat-tab {
  padding:7px 16px; border-radius:999px; white-space:nowrap;
  border:1px solid var(--border2); background:transparent;
  font:inherit; font-size:13px; font-weight:600; color:var(--text2);
  transition:all var(--fast); flex-shrink:0;
}
.cat-tab.active { background:rgba(0,212,255,.12); color:var(--cyan); border-color:rgba(0,212,255,.3); }

/* Lesson row */
.lesson-row {
  display:grid; grid-template-columns:auto 1fr auto;
  align-items:center; gap:12px;
  padding:13px 16px;
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r-m);
  cursor:pointer;
  transition:border-color var(--fast), background var(--fast);
  margin-bottom:8px;
}
.lesson-row:hover { border-color:var(--cyan); background:var(--card2); }

/* Ready card */
.ready-card {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r-l); padding:28px 22px;
  display:flex; flex-direction:column; gap:14px;
  max-width:480px; margin:0 auto;
}
.ready-icon { font-size:56px; text-align:center; animation:float 3s ease-in-out infinite; }
.ready-row  { display:flex; justify-content:space-between; align-items:center; font-size:14px; }
.ready-lbl  { color:var(--text2); }
.ready-val  { font-weight:700; color:var(--text); }

/* ══ RESULT ═══════════════════════════════════════════════════ */
.result-card {
  max-width:440px; margin:20px auto;
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r-xl); padding:32px 24px;
  text-align:center; animation:slide-up var(--med) both;
}
.result-icon  { font-size:60px; display:block; margin-bottom:6px; animation:float 2s ease-in-out infinite; }
.result-title { font-family:var(--font-d); font-size:26px; font-weight:700; margin-bottom:18px; color:var(--text); }
.result-stats { display:grid; grid-template-columns:repeat(4,1fr); gap:8px; margin-bottom:22px; }
@media(max-width:400px) { .result-stats { grid-template-columns:repeat(2,1fr); } }
.r-stat       { background:var(--bg2); border-radius:var(--r-s); padding:10px 6px; }
.r-stat-n     { display:block; font-family:var(--font-d); font-size:22px; font-weight:700; color:var(--cyan); }
.r-stat-l     { display:block; font-size:11px; color:var(--text2); margin-top:2px; }
.result-btns  { display:flex; gap:8px; flex-wrap:wrap; justify-content:center; }

/* ══ BANK ═════════════════════════════════════════════════════ */
.search-bar {
  width:100%; padding:12px 16px;
  background:var(--card); border:1px solid var(--border2);
  border-radius:var(--r-m); color:var(--text); font:inherit; font-size:14px;
  outline:none; transition:border-color var(--fast);
}
.search-bar:focus { border-color:var(--cyan); }
.search-bar::placeholder { color:var(--text3); }

.session-row-dk {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r-m); padding:14px 16px;
  display:grid; grid-template-columns:auto 1fr auto;
  align-items:center; gap:12px;
  transition:border-color var(--fast), background var(--fast);
}
.session-row-dk:hover { border-color:rgba(0,212,255,.25); background:var(--card2); }
.sr-icon  { font-size:26px; }
.sr-title { font-weight:700; font-size:14px; color:var(--text); }
.sr-meta  { font-size:12px; color:var(--text2); margin-top:2px; }
.sr-score { font-family:var(--font-d); font-size:22px; font-weight:700; color:var(--cyan); }
.sr-score.low { color:var(--red); }

/* ══ WEAK / MASTERY ═══════════════════════════════════════════ */
.mastery-row-dk {
  display:grid; grid-template-columns:1fr 3fr 44px;
  align-items:center; gap:12px;
  padding:12px 0;
  border-bottom:1px solid var(--border);
}
.mastery-name-dk { font-size:14px; font-weight:600; color:var(--text); display:flex; align-items:center; gap:6px; }
.mastery-track-dk { height:10px; background:var(--bg2); border-radius:999px; overflow:hidden; }
.mastery-fill-dk  { height:100%; border-radius:999px; transition:width .9s var(--ease); }
.mastery-fill-dk.strong { background:var(--cyan); }
.mastery-fill-dk.medium { background:var(--gold); }
.mastery-fill-dk.weak   { background:var(--red); }
.mastery-pct-dk { font-family:var(--font-d); font-weight:700; font-size:15px; text-align:end; }
.mastery-pct-dk.strong { color:var(--cyan); }
.mastery-pct-dk.medium { color:var(--gold); }
.mastery-pct-dk.weak   { color:var(--red); }

.wp-card-dk {
  background:var(--card); border:1px solid var(--border);
  border-inline-start:3px solid var(--red);
  border-radius:var(--r-m); padding:14px 16px;
  display:grid; grid-template-columns:auto 1fr auto auto;
  align-items:center; gap:12px;
  margin-bottom:8px;
  transition:background var(--fast);
}
.wp-card-dk:hover { background:var(--card2); }

/* ══ PROFILE ══════════════════════════════════════════════════ */
.profile-hero-dk {
  background:var(--grad-hero);
  border:1px solid var(--border);
  border-radius:var(--r-l); padding:22px 18px;
  display:flex; gap:16px; align-items:center;
  position:relative; overflow:hidden; margin-bottom:16px;
}
.profile-hero-dk::before { content:""; position:absolute; top:0; inset-inline-start:0; width:100%; height:2px; background:var(--grad-btn); }
.profile-av-dk {
  width:72px; height:72px; border-radius:50%;
  border:2.5px solid var(--cyan);
  object-fit:cover; background:var(--card2);
  flex-shrink:0; box-shadow:var(--sh-cyan);
}
.profile-info-dk { flex:1; }
.profile-name-dk { font-family:var(--font-d); font-size:24px; font-weight:700; color:var(--text); }
.profile-meta-dk { font-size:13px; color:var(--text2); margin:3px 0 8px; display:flex; flex-wrap:wrap; gap:8px; }
.profile-av-edit {
  position:absolute; bottom:18px; inset-inline-end:18px;
  padding:6px 12px; border-radius:999px;
  background:rgba(0,212,255,.1); border:1px solid rgba(0,212,255,.25);
  color:var(--cyan); font:inherit; font-size:12px; font-weight:600; cursor:pointer;
}
.profile-stats-dk { display:grid; grid-template-columns:repeat(auto-fill,minmax(110px,1fr)); gap:10px; margin-bottom:18px; }
.ps-dk {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r-m); padding:14px 12px;
}
.ps-dk-icon  { font-size:18px; margin-bottom:6px; }
.ps-dk-val   { font-family:var(--font-d); font-size:24px; font-weight:700; color:var(--cyan); line-height:1; }
.ps-dk-val.white { color:var(--text); }
.ps-dk-lbl   { font-size:11px; color:var(--text2); margin-top:3px; }

.profile-tabs-dk { display:flex; gap:4px; margin-bottom:16px; background:var(--bg2); border-radius:999px; padding:4px; width:fit-content; }
.p-tab-dk { padding:8px 16px; border-radius:999px; font:inherit; font-size:13px; font-weight:700; color:var(--text2); transition:all var(--fast); }
.p-tab-dk.active { background:var(--card); color:var(--cyan); box-shadow:0 2px 8px rgba(0,0,0,.3); }

.history-row-dk {
  display:grid; grid-template-columns:auto 1fr auto;
  align-items:center; gap:12px;
  padding:13px 14px; background:var(--card);
  border:1px solid var(--border); border-radius:var(--r-m);
  margin-bottom:8px;
}

/* ══ ADMIN ════════════════════════════════════════════════════ */
.admin-grid-dk { display:grid; grid-template-columns:repeat(auto-fill,minmax(160px,1fr)); gap:10px; }
.admin-card-dk {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r-m); padding:20px 16px;
  cursor:pointer; text-align:start;
  transition:border-color var(--fast), transform var(--fast);
}
.admin-card-dk:hover { border-color:var(--cyan); transform:translateY(-2px); }
.admin-card-dk-icon  { font-size:28px; margin-bottom:10px; }
.admin-card-dk-title { font-weight:700; font-size:14px; color:var(--text); margin-bottom:4px; }
.admin-card-dk-desc  { font-size:12.5px; color:var(--text2); }

/* Coming soon */
.coming-soon { text-align:center; padding:60px 20px; display:flex; flex-direction:column; align-items:center; gap:14px; }
.coming-soon-icon { font-size:64px; animation:float 4s ease-in-out infinite; }
.coming-soon-title { font-family:var(--font-d); font-size:26px; font-weight:700; color:var(--text); }
.coming-soon-sub   { font-size:14px; color:var(--text2); max-width:38ch; line-height:1.6; }

/* ENGINE components (MCQ / TF / Millionaire) */
.eng-shell { max-width:640px; margin:0 auto; display:flex; flex-direction:column; gap:16px; }
.mcq-stem  { font-family:var(--font-d); font-size:clamp(16px,2.5vw,21px); font-weight:600; line-height:1.55; padding:20px; background:var(--card); border:1px solid var(--border); border-radius:var(--r-m); color:var(--text); }
.mcq-options { display:grid; grid-template-columns:1fr 1fr; gap:8px; }
@media(max-width:480px){ .mcq-options { grid-template-columns:1fr; } }
.mcq-opt {
  display:flex; align-items:center; gap:10px;
  padding:13px 14px; border:1.5px solid var(--border2);
  border-radius:var(--r-s); background:var(--card); color:var(--text);
  font:inherit; font-size:14px; cursor:pointer; text-align:start;
  transition:all var(--fast);
}
.mcq-opt:hover:not(:disabled) { border-color:var(--cyan); background:var(--card2); }
.mcq-opt-letter { width:30px; height:30px; border-radius:50%; background:rgba(0,212,255,.1); color:var(--cyan); display:flex; align-items:center; justify-content:center; font-weight:700; font-size:12px; flex-shrink:0; }
.mcq-opt.correct { border-color:var(--cyan); background:rgba(0,212,255,.08); }
.mcq-opt.correct .mcq-opt-letter { background:var(--cyan); color:var(--bg); }
.mcq-opt.wrong   { border-color:var(--red);  background:rgba(255,71,87,.08); }
.mcq-opt.wrong .mcq-opt-letter  { background:var(--red);  color:white; }

.tf-card { padding:28px 20px; text-align:center; background:var(--card); border:1px solid var(--border); border-radius:var(--r-l); }
.tf-stem { font-family:var(--font-d); font-size:clamp(17px,3vw,24px); font-weight:600; line-height:1.5; color:var(--text); }
.tf-buttons { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-top:20px; }
.tf-btn { padding:20px 10px; border-radius:var(--r-m); font:inherit; font-size:17px; font-weight:700; cursor:pointer; display:flex; flex-direction:column; align-items:center; gap:8px; transition:all var(--fast); border:2px solid transparent; color:var(--text); }
.tf-icon { font-size:36px; }
.tf-false { background:rgba(255,71,87,.1);  border-color:rgba(255,71,87,.3); }
.tf-true  { background:rgba(0,212,255,.08); border-color:rgba(0,212,255,.2); }
.tf-btn:hover:not(:disabled) { transform:scale(1.04); }
.tf-btn.tf-correct { background:rgba(0,212,255,.2); border-color:var(--cyan); }
.tf-btn.tf-wrong   { background:rgba(255,71,87,.2);  border-color:var(--red); }
.tf-lives { font-size:18px; letter-spacing:-4px; }

.mil-shell { display:grid; grid-template-columns:1fr 130px; gap:14px; max-width:860px; margin:0 auto; }
@media(max-width:620px){ .mil-shell { grid-template-columns:1fr; } .mil-ladder { display:none; } }
.mil-ladder { display:flex; flex-direction:column; gap:2px; padding:8px; background:var(--card); border:1px solid var(--border); border-radius:var(--r-m); }
.ladder-item { padding:4px 8px; border-radius:6px; font-size:11px; font-weight:600; color:var(--text2); text-align:center; }
.ladder-item.current { background:var(--gold); color:var(--bg); }
.ladder-item.done    { background:rgba(0,212,255,.1); color:var(--cyan); }
.ladder-item.save    { border:1px dashed rgba(0,212,255,.3); color:var(--cyan); }
.mil-main { display:flex; flex-direction:column; gap:12px; }
.mil-topbar { display:flex; justify-content:space-between; align-items:center; }
.mil-prize-tag { font-family:var(--font-d); font-size:19px; font-weight:700; color:var(--gold); }
.mil-lifelines { display:flex; gap:8px; flex-wrap:wrap; }
.lf-btn { padding:7px 12px; border-radius:999px; border:1px solid rgba(0,212,255,.3); background:rgba(0,212,255,.08); color:var(--cyan); font:inherit; font-weight:700; font-size:12px; cursor:pointer; transition:all var(--fast); }
.lf-btn.used { opacity:.3; cursor:not-allowed; text-decoration:line-through; }
.lf-btn.walkaway { border-color:rgba(255,71,87,.3); background:rgba(255,71,87,.1); color:var(--red); margin-inline-start:auto; }
.mil-stem { font-family:var(--font-d); font-size:clamp(16px,2.5vw,20px); font-weight:600; line-height:1.5; padding:20px; background:linear-gradient(135deg,var(--card2),var(--bg2)); color:var(--text); border:1px solid var(--border); border-radius:var(--r-m); }
.mil-options { display:grid; grid-template-columns:1fr 1fr; gap:8px; }
@media(max-width:460px){ .mil-options { grid-template-columns:1fr; } }
.mil-opt { display:flex; align-items:center; gap:10px; padding:13px 14px; background:var(--card2); border:1.5px solid var(--border2); border-radius:var(--r-s); font:inherit; font-size:14px; cursor:pointer; text-align:start; color:var(--text); transition:all var(--fast); }
.mil-opt:hover:not(:disabled) { border-color:var(--gold); background:rgba(255,211,42,.05); }
.mil-opt-letter { font-family:var(--font-d); font-weight:700; font-size:15px; color:var(--gold); flex-shrink:0; }
.mil-opt.selecting { border-color:var(--gold); background:rgba(255,211,42,.1); animation:pulse .6s infinite; }
.mil-opt.mil-correct { background:rgba(0,212,255,.08); border-color:var(--cyan); color:var(--cyan); }
.mil-opt.mil-wrong   { background:rgba(255,71,87,.08); border-color:var(--red); color:var(--red); }
.mil-shell { position:relative; }
.mil-modal { position:absolute; inset:12px; z-index:10; background:var(--card2); border:1px solid var(--border2); border-radius:var(--r-m); padding:20px; box-shadow:var(--sh); animation:slide-up var(--fast) both; }

/* Shared engine header */
.eng-header  { display:flex; align-items:center; gap:10px; flex-wrap:wrap; font-weight:700; font-size:14px; }
.eng-counter { color:var(--text2); }
.eng-score   { color:var(--gold); font-family:var(--font-d); font-size:18px; }
.eng-streak  { background:rgba(255,71,87,.12); color:var(--red); padding:2px 10px; border-radius:999px; font-size:13px; }
.timer-wrap  { display:flex; align-items:center; gap:10px; }
.timer-bar   { flex:1; height:7px; background:var(--bg2); border-radius:999px; overflow:hidden; }
.timer-fill  { height:100%; background:var(--cyan); border-radius:999px; transition:width 1s linear,background .3s; }
.timer-label { font-family:var(--font-d); font-weight:700; font-size:18px; color:var(--text); min-width:28px; text-align:center; }
.exp-overlay { margin-top:10px; padding:16px 18px; border-radius:var(--r-m); animation:slide-up var(--fast) both; display:flex; flex-direction:column; gap:8px; }
.exp-overlay.exp-correct { background:rgba(0,212,255,.08); border:1px solid rgba(0,212,255,.2); }
.exp-overlay.exp-wrong   { background:rgba(255,71,87,.08);  border:1px solid rgba(255,71,87,.2); }
.exp-icon { font-size:26px; }
.exp-text { font-size:14px; color:var(--text2); line-height:1.6; }

/* Question gen */
.gen-box { max-width:620px; margin:0 auto; padding:24px; background:var(--card); border:1px solid var(--border); border-radius:var(--r-l); display:flex; flex-direction:column; gap:12px; }
.gen-title { font-family:var(--font-d); font-size:20px; font-weight:700; color:var(--text); }
.gen-sub { font-size:13.5px; color:var(--text2); line-height:1.6; }
.prompt-label { font-size:11px; font-weight:700; color:var(--text2); letter-spacing:.06em; text-transform:uppercase; }
.prompt-pre { background:var(--bg2); color:#8892a4; padding:13px 15px; border-radius:var(--r-s); font-family:"Courier New",monospace; font-size:12px; line-height:1.6; white-space:pre-wrap; word-break:break-all; max-height:180px; overflow-y:auto; margin:0; direction:ltr; text-align:left; }
.copy-btn { align-self:flex-start; padding:5px 12px; border-radius:999px; border:1px solid var(--border2); background:transparent; cursor:pointer; font:inherit; font-size:13px; color:var(--text2); transition:all var(--fast); }
.copy-btn:hover { border-color:var(--cyan); color:var(--cyan); }
.ai-textarea { width:100%; min-height:120px; padding:12px 14px; border-radius:var(--r-s); border:1px solid var(--border2); background:var(--bg2); font-family:"Courier New",monospace; font-size:12.5px; line-height:1.5; resize:vertical; color:var(--text); direction:ltr; text-align:left; outline:none; transition:border-color var(--fast); box-sizing:border-box; }
.ai-textarea:focus { border-color:var(--cyan); }

/* ══ AVATAR MODAL ═════════════════════════════════════════════ */
.av-modal { position:fixed; inset:0; z-index:120; display:flex; align-items:center; justify-content:center; }
.av-modal-box {
  background:var(--card2); border:1px solid var(--border2);
  border-radius:var(--r-l); padding:26px;
  width:min(400px,calc(100vw - 32px));
  box-shadow:var(--sh); animation:slide-up var(--med) both;
  display:flex; flex-direction:column; gap:12px;
}
.av-presets { display:flex; gap:10px; flex-wrap:wrap; }
.av-preset  { width:52px; height:52px; border-radius:50%; cursor:pointer; border:3px solid transparent; transition:border-color var(--fast); object-fit:cover; }
.av-preset.selected { border-color:var(--cyan); }
.av-modal-title { font-family:var(--font-d); font-size:20px; font-weight:700; color:var(--text); }

/* ══ KEYFRAMES ════════════════════════════════════════════════ */
@keyframes slide-up { from{opacity:0;transform:translateY(14px)} to{opacity:1;transform:translateY(0)} }
@keyframes pop-in   { from{opacity:0;transform:translate(-50%,-46%) scale(.94)} to{opacity:1;transform:translate(-50%,-50%) scale(1)} }
@keyframes float    { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }
@keyframes spin     { to{transform:rotate(360deg)} }
@keyframes pulse    { 0%,100%{opacity:1} 50%{opacity:.6} }
@keyframes bounce   { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-5px)} }