/* ═══════════════════════════════════════════════════════
   CREATAI  —  Premium Digital Platform
   Main Stylesheet  |  RTL Persian  |  Dark Luxury Theme
   ═══════════════════════════════════════════════════════ */

/* ── Fonts (self-hosted — no external CDN, works on Iran national internet) ── */
@font-face { font-family:'Vazirmatn'; font-style:normal; font-weight:300; font-display:swap;
  src:url('/static/fonts/vazirmatn/Vazirmatn-Light.woff2') format('woff2'); }
@font-face { font-family:'Vazirmatn'; font-style:normal; font-weight:400; font-display:swap;
  src:url('/static/fonts/vazirmatn/Vazirmatn-Regular.woff2') format('woff2'); }
@font-face { font-family:'Vazirmatn'; font-style:normal; font-weight:500; font-display:swap;
  src:url('/static/fonts/vazirmatn/Vazirmatn-Medium.woff2') format('woff2'); }
@font-face { font-family:'Vazirmatn'; font-style:normal; font-weight:700; font-display:swap;
  src:url('/static/fonts/vazirmatn/Vazirmatn-Bold.woff2') format('woff2'); }
@font-face { font-family:'Vazirmatn'; font-style:normal; font-weight:900; font-display:swap;
  src:url('/static/fonts/vazirmatn/Vazirmatn-Black.woff2') format('woff2'); }

/* ── Design Tokens ───────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg-0:   #04040d;
  --bg-1:   #07071a;
  --bg-2:   #0c0c22;
  --bg-3:   #111130;
  --bg-4:   #18183a;

  /* Gold system */
  --gold-dim:    #6b5320;
  --gold:        #c9a84c;
  --gold-light:  #dfc060;
  --gold-bright: #f2cc6b;
  --gold-glow:        rgba(201,168,76,.12);
  --gold-glow-strong: rgba(201,168,76,.25);

  /* Accent */
  --rose:        #e8547a;
  --rose-glow:   rgba(232,84,122,.12);
  --purple:      #9580ff;
  --purple-glow: rgba(149,128,255,.12);
  --teal:        #4ecdc4;

  /* Text */
  --t1: #ffffff;
  --t2: #f0ecff;
  --t3: #c8c3e0;
  --t4: #9b95b5;
  --t5: #5e587a;

  /* Borders */
  --b1: rgba(255,255,255,.05);
  --b2: rgba(255,255,255,.10);
  --b-gold: rgba(201,168,76,.22);

  /* Glass */
  --glass:       rgba(255,255,255,.03);
  --glass-hover: rgba(255,255,255,.06);

  /* Shadows */
  --sh-sm:   0 4px 20px rgba(0,0,0,.35);
  --sh-md:   0 8px 40px rgba(0,0,0,.55);
  --sh-gold: 0 0 40px rgba(201,168,76,.14);

  /* Radius */
  --r-xs: 6px;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;

  /* Font */
  --font: 'Vazirmatn', Tahoma, Arial, sans-serif;

  /* Transitions */
  --t-fast: .15s ease;
  --t-med:  .30s ease;
  --t-slow: .50s ease;

  /* Max width */
  --max-w: 1260px;
}

/* ── Reset ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  font-family: var(--font);
  background: var(--bg-1);
  color: var(--t2);
  direction: rtl;
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul  { list-style: none; }
button { font-family: var(--font); }

/* ── Scrollbar ───────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-1); }
::-webkit-scrollbar-thumb { background: var(--gold-dim); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* ── Selection ───────────────────────────────────────── */
::selection { background: var(--gold-glow-strong); color: var(--gold-bright); }

/* ── Container ───────────────────────────────────────── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 2rem; }

/* ── Gold Gradient Text ──────────────────────────────── */
.text-gold {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-bright) 50%, var(--gold) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3.5s linear infinite;
}
@keyframes shimmer { to { background-position: 200% center; } }

/* ── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .75rem 1.8rem;
  border-radius: var(--r-md);
  border: none;
  font-family: var(--font);
  font-size: .9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--t-med);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  letter-spacing: .01em;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.08);
  opacity: 0;
  transition: opacity var(--t-fast);
}
.btn:hover::after { opacity: 1; }

.btn-primary {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
  color: #08060f;
  box-shadow: 0 4px 24px var(--gold-glow-strong);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px var(--gold-glow-strong); }

.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 1.5px solid var(--b-gold);
}
.btn-outline:hover { background: var(--gold-glow); transform: translateY(-2px); }

.btn-ghost {
  background: var(--glass);
  color: var(--t3);
  border: 1px solid var(--b1);
}
.btn-ghost:hover { background: var(--glass-hover); border-color: var(--b-gold); color: var(--gold); }

.btn-rose {
  background: linear-gradient(135deg, var(--rose) 0%, #f06090 100%);
  color: #fff;
  box-shadow: 0 4px 24px var(--rose-glow);
}

.btn-lg { padding: 1rem 2.4rem; font-size: 1rem; border-radius: var(--r-lg); }
.btn-sm { padding: .45rem 1.1rem; font-size: .78rem; }
.btn-full { width: 100%; }

/* ── Section Label ───────────────────────────────────── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .38rem 1rem;
  background: var(--gold-glow);
  border: 1px solid var(--b-gold);
  border-radius: 999px;
  font-size: .76rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 1rem;
  letter-spacing: .02em;
}

.section-title {
  font-size: clamp(1.55rem, 3.5vw, 2.4rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--t1);
  margin-bottom: .9rem;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--t4);
  max-width: 560px;
  line-height: 1.85;
}

/* ── Glass Card ──────────────────────────────────────── */
.glass-card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--b1);
  border-radius: var(--r-lg);
  transition: all var(--t-med);
}
.glass-card:hover {
  background: var(--glass-hover);
  border-color: var(--b-gold);
  box-shadow: var(--sh-gold);
  transform: translateY(-4px);
}

/* ═══════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════ */
.site-header {
  position: fixed;
  top: 0; right: 0; left: 0;
  z-index: 1000;
  padding: 1.3rem 0;
  transition: background .4s ease, padding .4s ease, border-color .4s ease;
  border-bottom: 1px solid transparent;
}
.skip-link {
  position: fixed;
  top: .75rem;
  right: .75rem;
  z-index: 100000;
  transform: translateY(-180%);
  padding: .65rem 1rem;
  border-radius: .65rem;
  background: #fff;
  color: #111;
  font-weight: 800;
}
.skip-link:focus { transform: translateY(0); }
.site-header.scrolled {
  background: rgba(7,7,26,.90);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--b1);
  padding: .85rem 0;
  box-shadow: 0 4px 32px rgba(0,0,0,.45);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Logo */
.site-logo { display: flex; align-items: center; gap: .6rem; flex-shrink: 0; }
.logo-mark {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-bright) 100%);
  border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-style: normal;
  box-shadow: 0 4px 16px var(--gold-glow-strong);
  flex-shrink: 0;
}
.logo-text {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--t1);
}
.logo-text em {
  font-style: normal;
  background: linear-gradient(135deg, var(--gold), var(--gold-bright));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Nav */
.site-nav { display: flex; align-items: center; gap: .2rem; }
.nav-link {
  padding: .5rem .9rem;
  border-radius: var(--r-sm);
  font-size: .86rem;
  font-weight: 500;
  color: var(--t4);
  transition: all var(--t-fast);
}
.nav-link:hover { color: var(--t1); background: var(--glass-hover); }
.nav-link.active { color: var(--gold); background: var(--gold-glow); }

/* Header actions */
.header-actions { display: flex; align-items: center; gap: .6rem; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: .5rem;
  border-radius: var(--r-sm);
  border: none;
  background: transparent;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--t3);
  border-radius: 1px;
  transition: all var(--t-med);
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav overlay */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(4,4,13,.97);
  backdrop-filter: blur(20px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  animation: fadeIn .25s ease;
}
.mobile-nav.open { display: flex; }
.mobile-nav-link {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--t3);
  padding: .7rem 2rem;
  border-radius: var(--r-md);
  transition: all var(--t-fast);
  width: 100%;
  max-width: 280px;
  text-align: center;
}
.mobile-nav-link:hover { color: var(--gold); background: var(--gold-glow); }
.mobile-nav-close {
  position: absolute;
  top: 1.5rem;
  left: 1.5rem;
  background: var(--glass);
  border: 1px solid var(--b1);
  color: var(--t3);
  border-radius: 50%;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
}

/* ═══════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════ */
.site-footer {
  background: var(--bg-0);
  border-top: 1px solid var(--b1);
  padding: 5rem 0 2.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-brand-desc {
  font-size: .85rem;
  color: var(--t4);
  line-height: 1.9;
  margin-top: 1rem;
  max-width: 270px;
}
.footer-col h4 {
  font-size: .82rem;
  font-weight: 700;
  color: var(--t2);
  margin-bottom: 1.2rem;
  padding-bottom: .6rem;
  border-bottom: 1px solid var(--b1);
}
.footer-col li { margin-bottom: .55rem; }
.footer-col a { font-size: .82rem; color: var(--t4); transition: color var(--t-fast); }
.footer-col a:hover { color: var(--gold); }
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .82rem;
  color: var(--t4);
  margin-bottom: .55rem;
}
.footer-contact-item span { font-size: 1rem; }

.footer-bottom {
  border-top: 1px solid var(--b1);
  padding-top: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-bottom p { font-size: .78rem; color: var(--t5); }
.footer-badges { display: flex; align-items: center; gap: .8rem; }
.footer-badge {
  width: 56px; height: 56px;
  background: var(--bg-2);
  border: 1px solid var(--b1);
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: .6rem;
  color: var(--t5);
  text-align: center;
  line-height: 1.3;
}

/* ═══════════════════════════════════════════════════════
   SCROLL ANIMATIONS
   ═══════════════════════════════════════════════════════ */
.anim-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s ease, transform .65s ease;
}
.anim-up.in-view { opacity: 1; transform: translateY(0); }

.anim-fade { opacity: 0; transition: opacity .65s ease; }
.anim-fade.in-view { opacity: 1; }

/* Staggered children */
.stagger > * {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .5s ease, transform .5s ease;
}
.stagger.in-view > *:nth-child(1) { opacity:1; transform:none; transition-delay:.04s; }
.stagger.in-view > *:nth-child(2) { opacity:1; transform:none; transition-delay:.10s; }
.stagger.in-view > *:nth-child(3) { opacity:1; transform:none; transition-delay:.16s; }
.stagger.in-view > *:nth-child(4) { opacity:1; transform:none; transition-delay:.22s; }
.stagger.in-view > *:nth-child(5) { opacity:1; transform:none; transition-delay:.28s; }
.stagger.in-view > *:nth-child(6) { opacity:1; transform:none; transition-delay:.34s; }
.stagger.in-view > *:nth-child(7) { opacity:1; transform:none; transition-delay:.40s; }

/* ── Toast ───────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  align-items: center;
  pointer-events: none;
}
.toast {
  padding: .7rem 1.6rem;
  border-radius: var(--r-md);
  font-size: .84rem;
  font-weight: 600;
  white-space: nowrap;
  backdrop-filter: blur(20px);
  border: 1px solid var(--b1);
  animation: toastIn .3s ease forwards;
  pointer-events: auto;
}
.toast-success { background: rgba(46,213,115,.14); color: #2ed573; border-color: rgba(46,213,115,.2); }
.toast-error   { background: rgba(232,84,122,.14);  color: var(--rose); border-color: var(--rose-glow); }
.toast-info    { background: var(--gold-glow);       color: var(--gold); border-color: var(--b-gold); }
@keyframes toastIn { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:none; } }

/* ── Loader ──────────────────────────────────────────── */
#page-loader {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: var(--bg-0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity .5s ease;
}
#page-loader.hidden { opacity: 0; pointer-events: none; }
.loader-ring {
  width: 48px; height: 48px;
  border: 3px solid var(--b2);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ── Misc ────────────────────────────────────────────── */
.divider-gold {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--b-gold), transparent);
}

/* ── Form Inputs ─────────────────────────────────────── */
.form-group { margin-bottom: 1.2rem; }
.form-group label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--t3);
  margin-bottom: .45rem;
}
.form-control {
  width: 100%;
  background: var(--bg-3);
  border: 1.5px solid var(--b1);
  border-radius: var(--r-sm);
  padding: .75rem 1rem;
  color: var(--t1);
  font-family: var(--font);
  font-size: .9rem;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  outline: none;
  direction: rtl;
}
.form-control:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-glow);
}
.form-control::placeholder { color: var(--t5); }
.form-error { font-size: .76rem; color: var(--rose); margin-top: .3rem; }

/* ═══════════════════════════════════════════════════════
   LIGHT THEME  —  [data-theme="light"]
   سفید پریمیوم + سورمه‌ای — برعکس تم تیره
   ═══════════════════════════════════════════════════════ */
[data-theme="light"] {
  /* Backgrounds — pure white → soft blue-white */
  --bg-0:   #edf2f8;
  --bg-1:   #ffffff;
  --bg-2:   #f5f8fc;
  --bg-3:   #eaf1f9;
  --bg-4:   #dce8f4;

  /* Gold — deeper on white for proper contrast */
  --gold-dim:    #7a5c18;
  --gold:        #a87820;
  --gold-light:  #c49030;
  --gold-bright: #d9a840;
  --gold-glow:        rgba(168,120,32,.12);
  --gold-glow-strong: rgba(168,120,32,.28);

  /* Text — سورمه‌ای (deep navy) hierarchy */
  --t1: #0b1a3f;
  --t2: #172a5c;
  --t3: #2c4278;
  --t4: #5e7299;
  --t5: #96aac4;

  /* Borders — subtle navy */
  --b1: rgba(11,26,63,.08);
  --b2: rgba(11,26,63,.15);
  --b-gold: rgba(168,120,32,.32);

  /* Glass — frosted white on light bg */
  --glass:       rgba(255,255,255,.72);
  --glass-hover: rgba(255,255,255,.96);

  /* Shadows — soft navy depth */
  --sh-sm:   0 4px 20px rgba(11,26,63,.07);
  --sh-md:   0 8px 40px rgba(11,26,63,.11);
  --sh-gold: 0 0 40px rgba(168,120,32,.12);
}

[data-theme="light"] body { background: var(--bg-1); color: var(--t2); }

[data-theme="light"] .site-header.scrolled {
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--b1);
  box-shadow: 0 4px 32px rgba(11,26,63,.08);
}

[data-theme="light"] .mobile-nav {
  background: rgba(255,255,255,.98);
}
[data-theme="light"] .mobile-nav-close {
  background: var(--bg-3);
  border-color: var(--b1);
  color: var(--t3);
}
[data-theme="light"] .mobile-nav-link { color: var(--t2); }

[data-theme="light"] ::-webkit-scrollbar-track { background: var(--bg-3); }
[data-theme="light"] ::-webkit-scrollbar-thumb { background: rgba(11,26,63,.18); }
[data-theme="light"] ::-webkit-scrollbar-thumb:hover { background: var(--gold); }

[data-theme="light"] #page-loader { background: var(--bg-1); }

[data-theme="light"] .form-control {
  background: var(--bg-2);
  color: var(--t1);
  border-color: var(--b1);
}
[data-theme="light"] .form-control::placeholder { color: var(--t5); }

[data-theme="light"] .user-dropdown {
  background: #ffffff;
  border: 1px solid var(--b1);
  box-shadow: 0 8px 32px rgba(11,26,63,.12);
}
[data-theme="light"] .user-dd-item:hover { background: var(--bg-3); }

/* ─── Hero section overrides ────────────────────────────── */
[data-theme="light"] .hero {
  background: linear-gradient(145deg, #eef4fc 0%, #ffffff 45%, #fdf9f0 100%);
}
[data-theme="light"] .hero-overlay {
  background:
    radial-gradient(ellipse 85% 75% at 50% 15%, rgba(238,246,255,.96) 0%, transparent 72%),
    radial-gradient(ellipse 50% 40% at 85% 65%, rgba(168,120,32,.05) 0%, transparent 60%),
    radial-gradient(ellipse 55% 45% at 15% 75%, rgba(11,26,63,.04)  0%, transparent 60%);
}
[data-theme="light"] .hero-grid {
  background-image: radial-gradient(rgba(11,26,63,.055) 1px, transparent 1px);
}
[data-theme="light"] .blob-1 { opacity: .08; }
[data-theme="light"] .blob-2 { opacity: .06; }
[data-theme="light"] .blob-3 { opacity: .05; }

/* ─── Category cards overrides ──────────────────────────── */
[data-theme="light"] .cat-card:hover {
  box-shadow: 0 16px 48px rgba(11,26,63,.12);
}
[data-theme="light"] .cat-card:hover .cat-icon {
  background: rgba(11,26,63,.06);
}

/* ─── Theme Toggle Button ───────────────────────────────── */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px 4px 6px;
  background: linear-gradient(150deg, #0e0e26 0%, #07071a 100%);
  border: 1.5px solid rgba(201,168,76,.28);
  border-radius: 999px;
  cursor: pointer;
  transition: all .4s ease;
  box-shadow:
    0 5px 16px rgba(0,0,0,.55),
    0 1px 3px rgba(0,0,0,.4),
    inset 0 1px 0 rgba(255,255,255,.05),
    inset 0 -2px 4px rgba(0,0,0,.35);
  flex-shrink: 0;
  user-select: none;
  position: relative;
}
.theme-toggle:active { transform: scale(.96); }

.tt-track {
  width: 40px;
  height: 22px;
  background: linear-gradient(145deg, #040410, #08081c);
  border-radius: 999px;
  position: relative;
  flex-shrink: 0;
  box-shadow: inset 0 2px 6px rgba(0,0,0,.75), inset 0 -1px 2px rgba(255,255,255,.04);
  transition: background .4s ease, box-shadow .4s ease;
}
.tt-knob {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(145deg, #f2cc6b, #c9a84c);
  box-shadow:
    0 2px 7px rgba(201,168,76,.65),
    0 1px 3px rgba(0,0,0,.45),
    inset 0 1px 1px rgba(255,255,255,.45);
  transition: right .4s cubic-bezier(.34,1.56,.64,1),
              left  .4s cubic-bezier(.34,1.56,.64,1),
              background .4s ease, box-shadow .4s ease;
}
.tt-icon {
  font-size: 14px;
  line-height: 1;
  pointer-events: none;
  transition: opacity .3s ease, transform .3s ease;
  display: block;
}
.tt-moon { opacity: 1;   transform: scale(1); }
.tt-sun  { opacity: .28; transform: scale(.8); }

/* Light mode state */
[data-theme="light"] .theme-toggle {
  background: linear-gradient(150deg, #dce8ff 0%, #c8dcf5 100%);
  border-color: rgba(100,150,230,.40);
  box-shadow:
    0 5px 16px rgba(80,120,220,.18),
    0 1px 3px rgba(0,0,0,.08),
    inset 0 1px 0 rgba(255,255,255,.90),
    inset 0 -1px 2px rgba(0,0,0,.04);
}
[data-theme="light"] .tt-track {
  background: linear-gradient(145deg, #b8ccee, #ccddf8);
  box-shadow: inset 0 2px 5px rgba(80,120,220,.22), inset 0 -1px 2px rgba(255,255,255,.55);
}
[data-theme="light"] .tt-knob {
  right: auto;
  left: 3px;
  background: linear-gradient(145deg, #fff9c0, #ffd000);
  box-shadow:
    0 2px 10px rgba(255,200,0,.75),
    0 1px 3px rgba(0,0,0,.18),
    inset 0 1px 1px rgba(255,255,255,.9);
}
[data-theme="light"] .tt-moon { opacity: .25; transform: scale(.8); }
[data-theme="light"] .tt-sun  { opacity: 1;   transform: scale(1); }

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 768px) {
  .site-nav { display: none; }
  .header-actions .btn-ghost { display: none; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .footer-brand-desc { max-width: 100%; }
  .container { padding: 0 1.2rem; }
}
@media (max-width: 480px) {
  .btn-lg { padding: .85rem 1.6rem; font-size: .92rem; }
  .header-inner { gap: .65rem; }
  .header-actions { gap: .35rem; }
  .theme-toggle { padding: 4px; }
  .theme-toggle .tt-icon { display: none; }
}