/* ── Theme: Nexus (default) — футуризм + кофейное свечение ── */
[data-theme="nexus"],
:root {
  --bg: #050302;
  --bg-warm: #0A0705;
  --bg-card: rgba(16, 11, 8, 0.72);
  --bg-card-solid: #100B08;
  --text: #F4EBE0;
  --text-muted: #9A8878;
  --text-light: #6B5C50;
  --accent: #FF9F43;
  --accent-hover: #FFB86A;
  --accent-soft: rgba(255, 159, 67, 0.14);
  --accent-glow: rgba(255, 159, 67, 0.45);
  --coffee: #6F4E37;
  --coffee-deep: #3D2314;
  --coffee-neon: #C67C4E;
  --border: rgba(198, 124, 78, 0.16);
  --border-strong: rgba(255, 159, 67, 0.32);
  --shadow-sm: 0 2px 16px rgba(0, 0, 0, 0.45);
  --shadow-md: 0 8px 40px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 24px 80px rgba(0, 0, 0, 0.65);
  --header-bg: rgba(5, 3, 2, 0.82);
  --header-text: #F4EBE0;
  --header-text-muted: #9A8878;
  --marquee-bg: #3D2314;
  --marquee-text: #F4EBE0;
  --hero-glow:
    radial-gradient(ellipse 70% 45% at 50% 0%, rgba(198, 124, 78, 0.2) 0%, transparent 55%),
    radial-gradient(ellipse 45% 35% at 90% 55%, rgba(255, 159, 67, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse 40% 30% at 8% 75%, rgba(111, 78, 55, 0.14) 0%, transparent 48%);
  --btn-primary-bg: linear-gradient(135deg, #FF9F43 0%, #C67C4E 55%, #8B5A2B 100%);
  --btn-primary-text: #0A0604;
  --btn-primary-hover: linear-gradient(135deg, #FFB86A 0%, #D4925E 55%, #A06838 100%);
  --progress-complete: linear-gradient(90deg, #C67C4E, #FF9F43);
  --logo-mark-bg: linear-gradient(135deg, #FF9F43, #C67C4E);
  --logo-mark-text: #0A0604;
  --studio-dark: #050302;
  --studio-mid: #0C0806;
  --font-tech: 'Syne', 'Outfit', system-ui, sans-serif;
  --glass-bg: rgba(16, 11, 8, 0.55);
  --glass-border: rgba(198, 124, 78, 0.22);
}

/* ── Theme: Lumina — белая шапка → тёмный низ ── */
[data-theme="lumina"] {
  --bg: #0A0908;
  --bg-warm: #14110E;
  --bg-card: #1A1612;
  --text: #F2EBE3;
  --text-muted: #8E8680;
  --text-light: #5C5650;
  --accent: #FF5722;
  --accent-hover: #E64A19;
  --accent-soft: rgba(255, 87, 34, 0.14);
  --coffee: #2A1F1A;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.55);
  --header-bg: rgba(255, 255, 255, 0.94);
  --header-text: #1A1410;
  --header-text-muted: #6B635A;
  --marquee-bg: #FF5722;
  --marquee-text: #0A0908;
  --hero-glow: radial-gradient(ellipse at 20% 20%, rgba(255, 87, 34, 0.08) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 30%, rgba(196, 30, 58, 0.06) 0%, transparent 45%);
  --btn-primary-bg: #FF5722;
  --btn-primary-text: #FFFFFF;
  --btn-primary-hover: #E64A19;
  --progress-complete: #FF5722;
  --logo-mark-bg: #FF5722;
  --logo-mark-text: #FFFFFF;
  --studio-dark: #060504;
  --studio-mid: #0e0c0a;
  --page-gradient: linear-gradient(
    180deg,
    #FFFFFF 0%,
    #FFFFFF 12%,
    #FDFBF8 22%,
    #F7F2EB 32%,
    #EDE4D8 42%,
    #D4C8B8 52%,
    #A89888 62%,
    #6E5F52 72%,
    #3D332C 82%,
    #1A1612 92%,
    #0A0908 100%
  );
}

/* ── Theme: Noir — тёмный премиум ── */
[data-theme="noir"] {
  --bg: #0A0908;
  --bg-warm: #110F0D;
  --bg-card: #161412;
  --text: #F2EBE3;
  --text-muted: #8E8680;
  --text-light: #5C5650;
  --accent: #FF5722;
  --accent-hover: #E64A19;
  --accent-soft: rgba(255, 87, 34, 0.12);
  --coffee: #2A1F1A;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.13);
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.45);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.65);
  --header-bg: rgba(10, 9, 8, 0.92);
  --marquee-bg: #FF5722;
  --marquee-text: #0A0908;
  --pack-bg: #110F0D;
  --pack-text: #F2EBE3;
  --hero-glow: radial-gradient(ellipse at 30% 40%, rgba(255, 87, 34, 0.1) 0%, transparent 55%),
              radial-gradient(ellipse at 70% 60%, rgba(196, 30, 58, 0.08) 0%, transparent 50%);
  --btn-primary-bg: #FF5722;
  --btn-primary-text: #0A0908;
  --btn-primary-hover: #E64A19;
  --progress-complete: #FF5722;
  --logo-mark-bg: #FF5722;
  --logo-mark-text: #0A0908;
  --studio-dark: #060504;
  --studio-mid: #0e0c0a;
}

/* ── Theme: Cream — светлый ── */
[data-theme="cream"] {
  --bg: #F7F4EF;
  --bg-warm: #EDE8DF;
  --bg-card: #FFFFFF;
  --text: #1A1410;
  --text-muted: #6B635A;
  --text-light: #9A9288;
  --accent: #D84315;
  --accent-hover: #BF360C;
  --accent-soft: rgba(216, 67, 21, 0.08);
  --coffee: #3E2723;
  --border: rgba(26, 20, 16, 0.08);
  --border-strong: rgba(26, 20, 16, 0.15);
  --shadow-sm: 0 2px 8px rgba(26, 20, 16, 0.06);
  --shadow-md: 0 8px 32px rgba(26, 20, 16, 0.08);
  --shadow-lg: 0 24px 64px rgba(26, 20, 16, 0.12);
  --header-bg: rgba(247, 244, 239, 0.92);
  --marquee-bg: #1A1410;
  --marquee-text: #F7F4EF;
  --pack-bg: #1A1410;
  --pack-text: #F7F4EF;
  --hero-glow: radial-gradient(ellipse at 60% 40%, rgba(216, 67, 21, 0.06) 0%, transparent 60%);
  --btn-primary-bg: #1A1410;
  --btn-primary-text: #F7F4EF;
  --btn-primary-hover: #D84315;
  --progress-complete: #1A1410;
  --logo-mark-bg: #1A1410;
  --logo-mark-text: #F7F4EF;
  --studio-dark: #0c0a09;
  --studio-mid: #141110;
}

/* ── Theme: Midnight — тёмный, энергичный ── */
[data-theme="midnight"] {
  --bg: #0B0F14;
  --bg-warm: #121820;
  --bg-card: #161D27;
  --text: #E8EDF4;
  --text-muted: #8B9BB4;
  --text-light: #5A6A82;
  --accent: #00E5FF;
  --accent-hover: #00B8D4;
  --accent-soft: rgba(0, 229, 255, 0.1);
  --coffee: #1A2332;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.14);
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.6);
  --header-bg: rgba(11, 15, 20, 0.9);
  --marquee-bg: #00E5FF;
  --marquee-text: #0B0F14;
  --pack-bg: #121820;
  --pack-text: #E8EDF4;
  --hero-glow: radial-gradient(ellipse at 50% 30%, rgba(0, 229, 255, 0.12) 0%, transparent 55%),
              radial-gradient(ellipse at 80% 70%, rgba(108, 92, 231, 0.08) 0%, transparent 50%);
  --btn-primary-bg: #00E5FF;
  --btn-primary-text: #0B0F14;
  --btn-primary-hover: #00B8D4;
  --progress-complete: #00E5FF;
  --logo-mark-bg: #00E5FF;
  --logo-mark-text: #0B0F14;
}

/* ── Theme: Citrus — яркий, летний ── */
[data-theme="citrus"] {
  --bg: #FFFBF5;
  --bg-warm: #FFF3E0;
  --bg-card: #FFFFFF;
  --text: #1A1208;
  --text-muted: #7A6550;
  --text-light: #B09880;
  --accent: #FF6D00;
  --accent-hover: #E65100;
  --accent-soft: rgba(255, 109, 0, 0.1);
  --coffee: #4E342E;
  --border: rgba(255, 109, 0, 0.12);
  --border-strong: rgba(255, 109, 0, 0.22);
  --shadow-sm: 0 2px 8px rgba(255, 109, 0, 0.08);
  --shadow-md: 0 8px 32px rgba(255, 109, 0, 0.12);
  --shadow-lg: 0 20px 48px rgba(255, 109, 0, 0.15);
  --header-bg: rgba(255, 251, 245, 0.94);
  --marquee-bg: #FF6D00;
  --marquee-text: #FFFFFF;
  --pack-bg: #FF6D00;
  --pack-text: #FFFFFF;
  --hero-glow: radial-gradient(ellipse at 30% 50%, rgba(255, 109, 0, 0.1) 0%, transparent 55%),
              radial-gradient(ellipse at 70% 30%, rgba(255, 193, 7, 0.12) 0%, transparent 50%);
  --btn-primary-bg: #FF6D00;
  --btn-primary-text: #FFFFFF;
  --btn-primary-hover: #E65100;
  --progress-complete: #FF6D00;
  --logo-mark-bg: #FF6D00;
  --logo-mark-text: #FFFFFF;
}

/* ── Theme: Espresso — премиальный, кофейный ── */
[data-theme="espresso"] {
  --bg: #1C1410;
  --bg-warm: #261C16;
  --bg-card: #2A2018;
  --text: #F5EDE4;
  --text-muted: #A89080;
  --text-light: #706050;
  --accent: #C9A84C;
  --accent-hover: #B8943F;
  --accent-soft: rgba(201, 168, 76, 0.12);
  --coffee: #0E0A08;
  --border: rgba(201, 168, 76, 0.12);
  --border-strong: rgba(201, 168, 76, 0.22);
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.7);
  --header-bg: rgba(28, 20, 16, 0.92);
  --marquee-bg: #C9A84C;
  --marquee-text: #1C1410;
  --pack-bg: #261C16;
  --pack-text: #F5EDE4;
  --hero-glow: radial-gradient(ellipse at 50% 40%, rgba(201, 168, 76, 0.1) 0%, transparent 55%);
  --btn-primary-bg: #C9A84C;
  --btn-primary-text: #1C1410;
  --btn-primary-hover: #B8943F;
  --progress-complete: #C9A84C;
  --logo-mark-bg: #C9A84C;
  --logo-mark-text: #1C1410;
}

/* ── Theme: Arctic — холодный, освежающий ── */
[data-theme="arctic"] {
  --bg: #EEF6FA;
  --bg-warm: #E0EEF5;
  --bg-card: #FFFFFF;
  --text: #0D2137;
  --text-muted: #4A6880;
  --text-light: #7A98B0;
  --accent: #0097A7;
  --accent-hover: #00838F;
  --accent-soft: rgba(0, 151, 167, 0.1);
  --coffee: #1A3A4A;
  --border: rgba(13, 33, 55, 0.08);
  --border-strong: rgba(13, 33, 55, 0.16);
  --shadow-sm: 0 2px 8px rgba(13, 33, 55, 0.06);
  --shadow-md: 0 8px 32px rgba(13, 33, 55, 0.1);
  --shadow-lg: 0 24px 64px rgba(13, 33, 55, 0.14);
  --header-bg: rgba(238, 246, 250, 0.92);
  --marquee-bg: #0097A7;
  --marquee-text: #FFFFFF;
  --pack-bg: #0D2137;
  --pack-text: #EEF6FA;
  --hero-glow: radial-gradient(ellipse at 40% 30%, rgba(0, 151, 167, 0.12) 0%, transparent 55%),
              radial-gradient(ellipse at 70% 70%, rgba(100, 200, 255, 0.1) 0%, transparent 50%);
  --btn-primary-bg: #0097A7;
  --btn-primary-text: #FFFFFF;
  --btn-primary-hover: #00838F;
  --progress-complete: #0097A7;
  --logo-mark-bg: #0097A7;
  --logo-mark-text: #FFFFFF;
}

/* ── Theme-specific decorations ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background: var(--hero-glow);
  pointer-events: none;
  transition: background 0.5s;
}

[data-theme="nexus"] body {
  background: var(--bg);
}

[data-theme="nexus"] body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background:
    radial-gradient(ellipse 90% 55% at 50% -5%, rgba(198, 124, 78, 0.22) 0%, transparent 58%),
    radial-gradient(ellipse 55% 40% at 92% 45%, rgba(255, 159, 67, 0.1) 0%, transparent 52%),
    radial-gradient(ellipse 50% 38% at 5% 70%, rgba(111, 78, 55, 0.16) 0%, transparent 50%),
    linear-gradient(180deg, #0C0806 0%, #050302 35%, #080504 70%, #050302 100%);
}

[data-theme="lumina"] body {
  background: var(--bg);
}

[data-theme="lumina"] body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background: var(--page-gradient);
  pointer-events: none;
}

/* Nexus — стеклянная шапка */
[data-theme="nexus"] .header {
  background: var(--header-bg);
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(24px) saturate(1.4);
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.4), inset 0 -1px 0 rgba(255, 159, 67, 0.08);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

[data-theme="nexus"] .header.header--scrolled {
  background: rgba(5, 3, 2, 0.94);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.55), 0 0 40px rgba(255, 159, 67, 0.06);
}

[data-theme="nexus"] .logo__mark {
  box-shadow: 0 0 20px rgba(255, 159, 67, 0.45);
}

[data-theme="nexus"] .nav__link:hover {
  color: var(--accent);
  text-shadow: 0 0 16px var(--accent-glow);
}

[data-theme="nexus"] .cart-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
}

[data-theme="nexus"] .cart-btn:hover {
  border-color: var(--border-strong);
  box-shadow: 0 0 20px rgba(255, 159, 67, 0.2);
}

/* Nexus — hero */
[data-theme="nexus"] .hero {
  position: relative;
  isolation: isolate;
}

[data-theme="nexus"] .hero-banner {
  background: transparent;
}

[data-theme="nexus"] .hero-banner__eyebrow {
  font-family: var(--font-tech);
  letter-spacing: 0.22em;
  text-shadow: 0 0 24px var(--accent-glow);
}

[data-theme="nexus"] .hero-banner__brand {
  color: transparent;
  -webkit-text-stroke: 0;
  background: linear-gradient(135deg, #F4EBE0 0%, #C67C4E 45%, #FF9F43 100%);
  -webkit-background-clip: text;
  background-clip: text;
  filter: drop-shadow(0 0 30px rgba(255, 159, 67, 0.35));
}

[data-theme="nexus"] .hero-banner__type {
  color: var(--text);
  text-shadow: 0 0 40px rgba(198, 124, 78, 0.25);
}

[data-theme="nexus"] .hero-banner__tagline {
  font-family: var(--font-tech);
  letter-spacing: 0.28em;
  color: var(--text-muted);
}

[data-theme="nexus"] .hero-banner__img-wrap {
  filter:
    drop-shadow(0 28px 56px rgba(0, 0, 0, 0.45))
    drop-shadow(0 0 40px rgba(255, 159, 67, 0.12));
}

[data-theme="nexus"] .hero-banner__img {
  filter: none;
}

[data-theme="nexus"] .hero-banner__orb--1 { background: rgba(255, 159, 67, 0.28); }
[data-theme="nexus"] .hero-banner__orb--2 { background: rgba(198, 124, 78, 0.24); }
[data-theme="nexus"] .hero-banner__orb--3 { background: rgba(111, 78, 55, 0.22); }
[data-theme="nexus"] .hero-banner__orb--4 { background: rgba(255, 159, 67, 0.18); }
[data-theme="nexus"] .hero-banner__orb--5 { background: rgba(139, 90, 43, 0.2); }

[data-theme="nexus"] .hero-banner__shine {
  background: radial-gradient(ellipse, rgba(255, 159, 67, 0.15) 0%, transparent 65%);
}

[data-theme="nexus"] .hero__desc {
  color: var(--text-muted);
}

[data-theme="nexus"] .hero .btn--outline {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
}

[data-theme="nexus"] .hero .btn--outline:hover {
  border-color: var(--accent);
  box-shadow: 0 0 24px rgba(255, 159, 67, 0.25);
  color: var(--accent);
}

[data-theme="nexus"] .hero__cta {
  background: transparent;
}

/* Nexus — секции и карточки */
[data-theme="nexus"] .section-eyebrow,
[data-theme="nexus"] .hero-banner__eyebrow {
  font-family: var(--font-tech);
  letter-spacing: 0.18em;
  text-shadow: 0 0 20px var(--accent-glow);
}

[data-theme="nexus"] .section-title {
  background: linear-gradient(135deg, #F4EBE0 0%, #D4A574 40%, #FF9F43 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 24px rgba(255, 159, 67, 0.15));
}

[data-theme="nexus"] .why,
[data-theme="nexus"] .flavors-preview,
[data-theme="nexus"] .catalog,
[data-theme="nexus"] .about,
[data-theme="nexus"] .contacts {
  background: transparent;
  position: relative;
}

[data-theme="nexus"] .why {
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(198, 124, 78, 0.08) 0%, transparent 55%);
}

[data-theme="nexus"] .why-card {
  border-color: rgba(198, 124, 78, 0.18);
}

[data-theme="nexus"] .why-card--hero {
  background: linear-gradient(135deg, rgba(16, 11, 8, 0.75) 0%, rgba(61, 35, 20, 0.35) 100%);
}

[data-theme="nexus"] .why-card:hover {
  box-shadow:
    var(--shadow-md),
    0 0 48px rgba(255, 159, 67, 0.15),
    inset 0 1px 0 rgba(255, 159, 67, 0.1);
}

[data-theme="nexus"] .flavor-pill,
[data-theme="nexus"] .flavor-card,
[data-theme="nexus"] .why-card,
[data-theme="nexus"] .box-builder,
[data-theme="nexus"] .stat {
  background: var(--glass-bg);
  backdrop-filter: blur(18px) saturate(1.3);
  border-color: var(--glass-border);
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 159, 67, 0.06);
}

[data-theme="nexus"] .flavor-pill:hover,
[data-theme="nexus"] .flavor-card:hover,
[data-theme="nexus"] .why-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md), 0 0 32px rgba(255, 159, 67, 0.12);
}

[data-theme="nexus"] .box-builder {
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
}

[data-theme="nexus"] .pack-box {
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.55),
    0 0 40px rgba(198, 124, 78, 0.12),
    inset 0 1px 0 rgba(255, 159, 67, 0.1);
}

[data-theme="nexus"] .pack-box--complete {
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.55),
    0 0 48px rgba(255, 159, 67, 0.28),
    inset 0 1px 0 rgba(255, 159, 67, 0.2);
}

[data-theme="nexus"] .marquee {
  background: linear-gradient(90deg, #2A1810, #6F4E37, #C67C4E, #6F4E37, #2A1810);
  background-size: 200% 100%;
  animation: nexus-marquee-bg 8s linear infinite;
}

@keyframes nexus-marquee-bg {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

[data-theme="nexus"] .footer {
  background: rgba(5, 3, 2, 0.9);
  border-top: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 rgba(255, 159, 67, 0.08);
}

[data-theme="nexus"] .btn--primary {
  background: var(--btn-primary-bg);
  box-shadow: 0 4px 24px rgba(255, 159, 67, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

[data-theme="nexus"] .btn--primary:hover:not(:disabled) {
  background: var(--btn-primary-hover);
  box-shadow: 0 8px 32px rgba(255, 159, 67, 0.45);
}

[data-theme="nexus"] .box-builder__progress-fill {
  background: linear-gradient(90deg, #6F4E37, #C67C4E, #FF9F43);
}

[data-theme="nexus"] .box-builder__progress-fill.complete {
  background: var(--progress-complete);
  box-shadow: 0 0 16px rgba(255, 159, 67, 0.5);
}

[data-theme="nexus"] .ambient-glow__blob--1 { background: rgba(255, 159, 67, 0.18); }
[data-theme="nexus"] .ambient-glow__blob--2 { background: rgba(198, 124, 78, 0.14); }
[data-theme="nexus"] .ambient-glow__blob--3 { background: rgba(111, 78, 55, 0.12); }

[data-theme="nexus"] .ambient-particles span {
  background: color-mix(in srgb, var(--coffee-neon) 40%, transparent);
  box-shadow: 0 0 6px rgba(255, 159, 67, 0.3);
}

/* Lumina — светлая шапка с плавным растворением */
[data-theme="lumina"] .header:not(.header--dark) {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.98) 0%,
    rgba(255, 255, 255, 0.96) 42%,
    rgba(255, 255, 255, 0.82) 72%,
    rgba(255, 255, 255, 0.45) 90%,
    rgba(255, 255, 255, 0) 100%
  );
  border-bottom-color: transparent;
  box-shadow: none;
}

[data-theme="lumina"] .header:not(.header--dark)::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 56px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.72) 0%, rgba(255, 255, 255, 0) 100%);
  pointer-events: none;
}

[data-theme="lumina"] .header {
  backdrop-filter: blur(20px) saturate(1.2);
  transition: background 0.55s ease, border-color 0.55s ease, box-shadow 0.55s ease, color 0.4s;
}

[data-theme="lumina"] .header.header--dark {
  background: rgba(10, 9, 8, 0.92);
  border-bottom-color: var(--border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

[data-theme="lumina"] .header:not(.header--dark) .logo {
  color: var(--header-text);
}

[data-theme="lumina"] .header:not(.header--dark) .logo__sub {
  color: var(--header-text-muted);
}

[data-theme="lumina"] .header:not(.header--dark) .nav__link {
  color: var(--header-text-muted);
}

[data-theme="lumina"] .header:not(.header--dark) .nav__link:hover {
  color: var(--accent);
}

[data-theme="lumina"] .header:not(.header--dark) .cart-btn {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(26, 20, 16, 0.12);
  color: var(--header-text);
}

[data-theme="lumina"] .header:not(.header--dark) .burger span {
  background: var(--header-text);
}

[data-theme="lumina"] .header.header--dark .logo {
  color: var(--text);
}

[data-theme="lumina"] .header.header--dark .logo__sub {
  color: var(--text-muted);
}

[data-theme="lumina"] .header.header--dark .nav__link {
  color: var(--text-muted);
}

[data-theme="lumina"] .header.header--dark .cart-btn {
  background: var(--bg-card);
  border-color: var(--border-strong);
  color: var(--text);
}

[data-theme="lumina"] .header.header--dark .burger span {
  background: var(--text);
}

/* Lumina — светлый hero */
[data-theme="lumina"] .hero {
  --hero-text: #1A1410;
  --hero-text-muted: #6B635A;
  position: relative;
  isolation: isolate;
}

[data-theme="lumina"] .hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.55) 0%,
    rgba(255, 255, 255, 0.18) 28%,
    transparent 48%,
    rgba(10, 9, 8, 0.35) 72%,
    rgba(10, 9, 8, 0.82) 100%
  );
}

[data-theme="lumina"] .hero-banner,
[data-theme="lumina"] .hero__cta {
  position: relative;
  z-index: 1;
}

[data-theme="lumina"] .hero-banner {
  background: transparent;
}

[data-theme="lumina"] .hero-banner__orb {
  opacity: 0.28;
  filter: blur(64px);
}

[data-theme="lumina"] .hero-banner__img-wrap {
  filter:
    drop-shadow(0 18px 36px rgba(26, 20, 16, 0.16))
    drop-shadow(0 6px 14px rgba(26, 20, 16, 0.1));
}

[data-theme="lumina"] .hero-banner__img {
  filter: none;
}

[data-theme="lumina"] .hero-banner__brand {
  -webkit-text-stroke: 1.5px var(--hero-text);
}

[data-theme="lumina"] .hero-banner__type {
  color: var(--hero-text);
}

[data-theme="lumina"] .hero-banner__tagline {
  color: var(--hero-text-muted);
}

[data-theme="lumina"] .hero-banner__shine {
  background: radial-gradient(ellipse, rgba(255, 87, 34, 0.08) 0%, transparent 68%);
}

[data-theme="lumina"] .hero__desc {
  color: rgba(242, 235, 227, 0.88);
}

[data-theme="lumina"] .hero .btn--outline {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
}

[data-theme="lumina"] .hero .btn--outline:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.45);
  color: #FFFFFF;
}

[data-theme="lumina"] .hero__cta {
  background: transparent;
}

[data-theme="lumina"] .hero::after {
  display: none;
}

[data-theme="lumina"] .why,
[data-theme="lumina"] .flavors-preview,
[data-theme="lumina"] .catalog,
[data-theme="lumina"] .about,
[data-theme="lumina"] .contacts,
[data-theme="lumina"] .footer {
  position: relative;
}

[data-theme="lumina"] .ambient-glow__blob {
  opacity: 0.22;
}

[data-theme="lumina"] .ambient-glow__blob--1 {
  background: rgba(255, 87, 34, 0.14);
}

[data-theme="lumina"] .ambient-glow__blob--2 {
  background: rgba(196, 30, 58, 0.1);
}

[data-theme="lumina"] .ambient-glow__blob--3 {
  background: rgba(255, 107, 0, 0.08);
}

[data-theme="noir"] .hero__orb { opacity: 0.75; }
[data-theme="noir"] .hero-banner {
  background:
    radial-gradient(ellipse 90% 70% at 50% 110%, rgba(255, 87, 34, 0.22) 0%, transparent 58%),
    radial-gradient(ellipse 55% 45% at 12% 35%, rgba(196, 30, 58, 0.16) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 88% 28%, rgba(255, 107, 0, 0.14) 0%, transparent 52%),
    linear-gradient(175deg, #110F0D 0%, #0A0908 100%);
}
[data-theme="noir"] .flavor-pill,
[data-theme="noir"] .flavor-card {
  background: var(--bg-card);
}
[data-theme="noir"] .box-builder {
  background: var(--bg-card);
  border-color: var(--border-strong);
}
[data-theme="noir"] .why-card {
  background: var(--bg-card);
}
[data-theme="noir"] .stat {
  background: var(--bg-warm);
}

[data-theme="midnight"] .hero__orb { opacity: 0.7; filter: blur(1px); }
[data-theme="midnight"] .marquee__track { animation-duration: 20s; }

[data-theme="citrus"] .hero__title em { color: var(--accent); }
[data-theme="citrus"] .feature { border-left: 3px solid var(--accent); }

[data-theme="espresso"] .hero__title {
  font-style: normal;
}
[data-theme="espresso"] .section-title {
  letter-spacing: 0.02em;
}

[data-theme="arctic"] .hero__bottle {
  filter: drop-shadow(0 24px 48px rgba(0, 151, 167, 0.2));
}
[data-theme="arctic"] .flavors-preview {
  background: linear-gradient(180deg, var(--bg-warm) 0%, var(--bg) 100%);
}

/* Theme-aware component overrides */
.header { background: var(--header-bg); }

[data-theme="nexus"] .cart-sidebar,
[data-theme="nexus"] .modal__content {
  background: rgba(10, 7, 5, 0.92);
  backdrop-filter: blur(24px);
  border-color: rgba(198, 124, 78, 0.2);
}

[data-theme="nexus"] .box-preset-btn.is-active {
  box-shadow: 0 0 20px rgba(255, 159, 67, 0.3);
}

.logo__mark {
  background: var(--logo-mark-bg);
  color: var(--logo-mark-text);
}

.btn--primary {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
}

.btn--primary:hover:not(:disabled) {
  background: var(--btn-primary-hover);
}

.box-builder__progress-fill.complete {
  background: var(--progress-complete);
}

.marquee {
  background: var(--marquee-bg);
  color: var(--marquee-text);
}

.stat__value { color: var(--accent); }

.cart-btn__count {
  background: var(--accent);
  color: var(--btn-primary-text);
}

.success-icon {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
}

/* ── Theme switcher UI ── */
.theme-switcher {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 150;
}

body.has-add-box-bar .theme-switcher {
  bottom: calc(92px + env(safe-area-inset-bottom, 0px));
}

.theme-switcher__toggle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1.5px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all 0.25s;
  font-size: 1.2rem;
}

.theme-switcher__toggle:hover {
  transform: scale(1.08);
  border-color: var(--accent);
}

.theme-switcher__panel {
  position: absolute;
  bottom: 60px;
  left: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-lg);
  min-width: 220px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.25s;
}

.theme-switcher.open .theme-switcher__panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.theme-switcher__title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-light);
  margin-bottom: 12px;
}

.theme-switcher__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.theme-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 8px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font);
}

.theme-option:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.theme-option.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.theme-option__swatch {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.3);
  box-shadow: var(--shadow-sm);
}

.theme-option__name {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
}

.theme-option.active .theme-option__name {
  color: var(--accent);
}

@media (max-width: 768px) {
  body.has-add-box-bar .theme-switcher {
    bottom: calc(96px + env(safe-area-inset-bottom, 0px));
    left: 16px;
  }
  .theme-switcher__panel {
    min-width: 200px;
  }
}