/* ============================================================
   LUME · LED MIRRORS — lume.co.in
   Design system: dark editorial, matching the print catalogue.
   Accent = the product itself: a cool-white LED glow.
   No gold in UI. Serif display / sans body / mono labels.
   ============================================================ */

:root {
  --ink-0: #0b0d0f;        /* page background */
  --ink-1: #101317;        /* raised panels */
  --ink-2: #161a1f;        /* cards */
  --ink-3: #1f242b;        /* borders, hairlines */
  --paper: #eef1f4;        /* primary text */
  --paper-dim: #9aa3ad;    /* secondary text */
  --paper-faint: #5b636d;  /* labels, footers */
  --led: #dfe9f5;          /* the LED white — accent */
  --led-glow: rgba(205, 225, 250, 0.28);
  --led-glow-soft: rgba(205, 225, 250, 0.10);
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
  --max: 1180px;
  --radius: 6px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  background: var(--ink-0);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
button { font: inherit; cursor: pointer; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- Typography ---------- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.12; letter-spacing: 0.005em; }
h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); }
h2 { font-size: clamp(2rem, 4.2vw, 3rem); }
h3 { font-size: 1.35rem; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--paper-faint);
  display: block;
  margin-bottom: 18px;
}
.eyebrow--lit { color: var(--led); text-shadow: 0 0 18px var(--led-glow); }

.lede { color: var(--paper-dim); font-size: 1.06rem; max-width: 56ch; }

.mono-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-dim);
  border: 1px solid var(--ink-3);
  padding: 5px 10px;
  border-radius: 3px;
  display: inline-block;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 60;
  background: rgba(11, 13, 15, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--ink-3);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.nav-logo {
  font-family: var(--font-mono); font-weight: 700; letter-spacing: 0.5em;
  font-size: 1.05rem; text-decoration: none; color: var(--paper);
  text-shadow: 0 0 24px var(--led-glow);
}
.nav-logo small { display: block; font-size: 0.55rem; letter-spacing: 0.32em; color: var(--paper-faint); font-weight: 400; margin-top: 1px; }
.nav-links { display: flex; gap: 30px; align-items: center; list-style: none; }
.nav-links a {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.18em;
  text-transform: uppercase; text-decoration: none; color: var(--paper-dim);
  transition: color 0.2s, text-shadow 0.2s;
  padding: 6px 2px;
}
.nav-links a:hover, .nav-links a:focus-visible, .nav-links a[aria-current="page"] {
  color: var(--led); text-shadow: 0 0 16px var(--led-glow);
}
.nav-cart-btn {
  position: relative; background: none; border: 1px solid var(--ink-3);
  color: var(--paper); border-radius: var(--radius);
  padding: 8px 16px; font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 0.14em; text-transform: uppercase;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.nav-cart-btn:hover, .nav-cart-btn:focus-visible { border-color: var(--led); box-shadow: 0 0 20px var(--led-glow-soft); }
.cart-count {
  position: absolute; top: -8px; right: -8px;
  background: var(--led); color: var(--ink-0);
  font-size: 0.65rem; font-weight: 700;
  min-width: 18px; height: 18px; border-radius: 9px;
  display: none; align-items: center; justify-content: center;
  padding: 0 4px; box-shadow: 0 0 14px var(--led-glow);
}
.cart-count.show { display: inline-flex; }
.nav-burger { display: none; background: none; border: 1px solid var(--ink-3); border-radius: var(--radius); color: var(--paper); width: 40px; height: 40px; font-size: 1.1rem; }

@media (max-width: 840px) {
  .nav-links {
    display: none; position: absolute; top: 66px; left: 0; right: 0;
    background: var(--ink-1); border-bottom: 1px solid var(--ink-3);
    flex-direction: column; padding: 22px; gap: 20px;
  }
  .nav-links.open { display: flex; }
  .nav-burger { display: block; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; text-decoration: none; text-align: center;
  font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.16em;
  text-transform: uppercase; border-radius: var(--radius);
  padding: 14px 28px; transition: all 0.22s;
}
.btn-lit {
  background: var(--led); color: var(--ink-0); border: 1px solid var(--led);
  box-shadow: 0 0 28px var(--led-glow);
}
.btn-lit:hover, .btn-lit:focus-visible { box-shadow: 0 0 44px var(--led-glow); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--paper); border: 1px solid var(--ink-3); }
.btn-ghost:hover, .btn-ghost:focus-visible { border-color: var(--led); box-shadow: 0 0 18px var(--led-glow-soft); }
.btn-wide { width: 100%; }

:focus-visible { outline: 2px solid var(--led); outline-offset: 3px; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--ink-3); }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; padding: 84px 0 90px; }
.hero-copy h1 em { font-style: italic; color: var(--led); text-shadow: 0 0 40px var(--led-glow); }
.hero-copy .lede { margin: 26px 0 36px; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-visual { position: relative; }
.hero-visual img {
  border-radius: 10px; width: 100%;
  box-shadow: 0 0 90px var(--led-glow-soft), 0 30px 70px rgba(0,0,0,0.5);
}
.hero-visual::after {
  content: ''; position: absolute; inset: -40px;
  background: radial-gradient(ellipse at center, var(--led-glow-soft), transparent 65%);
  pointer-events: none; z-index: -1;
}
.hero-meta { display: flex; gap: 26px; margin-top: 40px; flex-wrap: wrap; }
.hero-meta div { border-left: 1px solid var(--ink-3); padding-left: 16px; }
.hero-meta strong { font-family: var(--font-display); font-size: 1.5rem; display: block; }
.hero-meta span { font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--paper-faint); }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; padding: 56px 0 60px; }
  .hero-visual { order: -1; max-width: 460px; }
}

/* ---------- Sections ---------- */
.section { padding: 96px 0; border-bottom: 1px solid var(--ink-3); }
.section-head { margin-bottom: 52px; display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; flex-wrap: wrap; }

/* ---------- Two tracks ---------- */
.tracks { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.track {
  background: var(--ink-1); border: 1px solid var(--ink-3); border-radius: 10px;
  overflow: hidden; display: flex; flex-direction: column;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.track:hover { border-color: #2c333c; box-shadow: 0 0 40px var(--led-glow-soft); }
.track img { height: 300px; width: 100%; object-fit: cover; }
.track-body { padding: 30px; display: flex; flex-direction: column; gap: 14px; flex: 1; }
.track-body h3 { font-size: 1.7rem; }
.track-body p { color: var(--paper-dim); font-size: 0.95rem; flex: 1; }
.track-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.track-body .btn { align-self: flex-start; margin-top: 6px; }
@media (max-width: 800px) { .tracks { grid-template-columns: 1fr; } }

/* ---------- Features ---------- */
.light-trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 20px; }
.light-swatch { border: 1px solid var(--ink-3); border-radius: 8px; overflow: hidden; background: var(--ink-1); }
.light-swatch .chip { height: 96px; }
.chip-cool { background: linear-gradient(135deg, #dde8f7, #c9d9ef); box-shadow: inset 0 0 40px rgba(190, 215, 250, 0.6); }
.chip-natural { background: linear-gradient(135deg, #f3f0e8, #e9e4d6); }
.chip-warm { background: linear-gradient(135deg, #f5e5c4, #eed5a5); }
.light-swatch figcaption { padding: 14px 16px; }
.light-swatch strong { display: block; font-size: 0.92rem; }
.light-swatch span { font-family: var(--font-mono); font-size: 0.68rem; color: var(--paper-faint); letter-spacing: 0.12em; }
.touch-note { color: var(--paper-dim); font-size: 0.92rem; max-width: 66ch; }
.touch-note b { color: var(--paper); }

.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--ink-3); border: 1px solid var(--ink-3); border-radius: 10px; overflow: hidden; margin-top: 44px; }
.feature { background: var(--ink-1); padding: 30px 26px 26px; display: flex; flex-direction: column; min-height: 200px; }
.feature .fnum { font-family: var(--font-mono); font-size: 0.7rem; color: var(--paper-faint); letter-spacing: 0.2em; margin-bottom: 14px; }
.feature h3 { font-family: var(--font-body); font-weight: 600; font-size: 1.02rem; margin-bottom: 8px; }
.feature p { color: var(--paper-dim); font-size: 0.88rem; flex: 1; }
.feature .fmeta { font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--paper-faint); border-top: 1px solid var(--ink-3); padding-top: 12px; margin-top: 16px; }
@media (max-width: 800px) { .features-grid, .light-trio { grid-template-columns: 1fr; } }

/* ---------- Gallery ---------- */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 36px; }
.filter-bar button {
  background: none; border: 1px solid var(--ink-3); color: var(--paper-dim);
  border-radius: 999px; padding: 8px 18px;
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase;
  transition: all 0.2s;
}
.filter-bar button:hover { border-color: var(--paper-dim); color: var(--paper); }
.filter-bar button.active { border-color: var(--led); color: var(--led); box-shadow: 0 0 16px var(--led-glow-soft); }

.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.g-card {
  background: var(--ink-2); border: 1px solid var(--ink-3); border-radius: 10px;
  overflow: hidden; display: flex; flex-direction: column;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}
.g-card:hover { border-color: #2e3640; box-shadow: 0 0 34px var(--led-glow-soft); transform: translateY(-3px); }
.g-card img { aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }
.g-card-body { padding: 16px 18px 18px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.g-card-body .name { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--paper-dim); }
.g-card-body button {
  background: none; border: 1px solid var(--ink-3); color: var(--paper);
  border-radius: var(--radius); padding: 8px 14px;
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase;
  white-space: nowrap; transition: all 0.2s;
}
.g-card-body button:hover, .g-card-body button:focus-visible { border-color: var(--led); color: var(--led); box-shadow: 0 0 14px var(--led-glow-soft); }
@media (max-width: 900px) { .gallery { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .gallery { grid-template-columns: 1fr; } }

/* Collection preview strip on home */
.preview-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.preview-card { position: relative; border-radius: 10px; overflow: hidden; border: 1px solid var(--ink-3); text-decoration: none; }
.preview-card img { aspect-ratio: 3 / 4; object-fit: cover; width: 100%; transition: transform 0.4s; }
.preview-card:hover img { transform: scale(1.04); }
.preview-card .pc-label {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 40px 16px 14px;
  background: linear-gradient(transparent, rgba(8, 10, 12, 0.92));
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--paper);
}
@media (max-width: 800px) { .preview-strip { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Custom / steps ---------- */
.steps { display: grid; gap: 14px; }
.step { display: flex; gap: 18px; background: var(--ink-1); border: 1px solid var(--ink-3); border-radius: 10px; padding: 22px 24px; }
.step .snum { font-family: var(--font-mono); color: var(--led); font-size: 0.8rem; text-shadow: 0 0 14px var(--led-glow); }
.step strong { display: block; margin-bottom: 4px; }
.step p { color: var(--paper-dim); font-size: 0.9rem; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split img { border-radius: 10px; box-shadow: 0 0 60px var(--led-glow-soft); }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }

/* ---------- Trade stats ---------- */
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--ink-3); border: 1px solid var(--ink-3); border-radius: 10px; overflow: hidden; }
.stat { background: var(--ink-1); padding: 26px 22px; }
.stat strong { font-family: var(--font-display); font-size: 2rem; display: block; }
.stat span { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--paper-faint); }
@media (max-width: 700px) { .stat-row { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Forms ---------- */
.form-grid { display: grid; gap: 18px; }
.field label { display: block; font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--paper-dim); margin-bottom: 8px; }
.field input, .field select, .field textarea {
  width: 100%; background: var(--ink-0); border: 1px solid var(--ink-3);
  color: var(--paper); border-radius: var(--radius); padding: 12px 14px;
  font: inherit; font-size: 0.95rem; transition: border-color 0.2s, box-shadow 0.2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--led); box-shadow: 0 0 16px var(--led-glow-soft);
}
.field textarea { resize: vertical; min-height: 96px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 600px) { .field-row { grid-template-columns: 1fr; } }
.field-hint { font-size: 0.78rem; color: var(--paper-faint); margin-top: 6px; }

.check-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.check {
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--ink-3); border-radius: var(--radius);
  padding: 11px 14px; cursor: pointer; user-select: none;
  font-size: 0.88rem; color: var(--paper-dim); transition: all 0.2s;
}
.check:hover { border-color: #333b45; }
.check input { accent-color: #c9d9ef; width: 15px; height: 15px; }
.check:has(input:checked) { border-color: var(--led); color: var(--paper); box-shadow: 0 0 14px var(--led-glow-soft); }

/* radio pills for light colour */
.pill-group { display: flex; gap: 10px; flex-wrap: wrap; }
.pill { position: relative; }
.pill input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.pill span {
  display: inline-block; border: 1px solid var(--ink-3); border-radius: 999px;
  padding: 8px 18px; font-size: 0.84rem; color: var(--paper-dim); transition: all 0.2s;
}
.pill input:checked + span { border-color: var(--led); color: var(--paper); box-shadow: 0 0 14px var(--led-glow-soft); }
.pill input:focus-visible + span { outline: 2px solid var(--led); outline-offset: 2px; }

/* ---------- Modal (configurator) ---------- */
.modal-overlay {
  position: fixed; inset: 0; z-index: 90;
  background: rgba(5, 7, 9, 0.78);
  display: none; align-items: flex-start; justify-content: center;
  overflow-y: auto; padding: 40px 18px;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--ink-1); border: 1px solid var(--ink-3); border-radius: 12px;
  max-width: 720px; width: 100%;
  box-shadow: 0 0 80px rgba(0,0,0,0.6), 0 0 40px var(--led-glow-soft);
}
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 22px 26px; border-bottom: 1px solid var(--ink-3); }
.modal-head h3 { font-size: 1.4rem; }
.modal-close { background: none; border: 1px solid var(--ink-3); color: var(--paper); border-radius: 50%; width: 36px; height: 36px; font-size: 1rem; }
.modal-close:hover { border-color: var(--led); }
.modal-body { padding: 26px; display: grid; gap: 22px; }
.modal-body .config-preview { display: flex; gap: 18px; align-items: center; }
.modal-body .config-preview img { width: 110px; height: 130px; object-fit: cover; border-radius: 8px; border: 1px solid var(--ink-3); }
.modal-foot { padding: 20px 26px 26px; border-top: 1px solid var(--ink-3); }

.fieldset-label { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--paper-dim); margin-bottom: 10px; display: block; }
fieldset { border: none; }

/* ---------- Cart drawer ---------- */
.cart-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 95;
  width: min(440px, 100vw);
  background: var(--ink-1); border-left: 1px solid var(--ink-3);
  transform: translateX(100%); transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
  display: flex; flex-direction: column;
  box-shadow: -30px 0 80px rgba(0,0,0,0.5);
}
.cart-drawer.open { transform: translateX(0); }
.cart-head { display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; border-bottom: 1px solid var(--ink-3); }
.cart-head h3 { font-size: 1.3rem; }
.cart-items { flex: 1; overflow-y: auto; padding: 18px 24px; display: grid; gap: 14px; align-content: start; }
.cart-empty { color: var(--paper-faint); text-align: center; padding: 60px 20px; font-size: 0.92rem; }
.cart-item { display: flex; gap: 14px; border: 1px solid var(--ink-3); border-radius: 8px; padding: 14px; background: var(--ink-2); }
.cart-item img { width: 66px; height: 80px; object-fit: cover; border-radius: 5px; }
.cart-item .ci-body { flex: 1; min-width: 0; }
.cart-item .ci-name { font-size: 0.9rem; font-weight: 600; }
.cart-item .ci-spec { font-size: 0.75rem; color: var(--paper-faint); margin-top: 4px; line-height: 1.5; }
.cart-item .ci-remove { background: none; border: none; color: var(--paper-faint); font-size: 0.75rem; text-decoration: underline; padding: 0; margin-top: 8px; }
.cart-item .ci-remove:hover { color: var(--paper); }
.cart-foot { border-top: 1px solid var(--ink-3); padding: 20px 24px; display: grid; gap: 10px; }
.cart-note { font-size: 0.78rem; color: var(--paper-faint); text-align: center; }

/* ---------- Checkout ---------- */
.checkout-panel { max-width: 640px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--ink-1); border: 1px solid var(--led); color: var(--paper);
  padding: 13px 24px; border-radius: 999px; z-index: 120;
  font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.1em;
  opacity: 0; pointer-events: none; transition: all 0.3s;
  box-shadow: 0 0 30px var(--led-glow);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- FAQ ---------- */
.faq details { border: 1px solid var(--ink-3); border-radius: 8px; background: var(--ink-1); margin-bottom: 10px; }
.faq summary { padding: 18px 22px; cursor: pointer; font-weight: 600; font-size: 0.95rem; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-family: var(--font-mono); color: var(--paper-faint); font-size: 1.1rem; }
.faq details[open] summary::after { content: '−'; color: var(--led); }
.faq details p { padding: 0 22px 18px; color: var(--paper-dim); font-size: 0.9rem; }

/* ---------- Contact / footer ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.contact-block h4 { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--paper-faint); margin-bottom: 10px; font-weight: 500; }
.contact-block p, .contact-block a { font-size: 1.05rem; color: var(--paper); text-decoration: none; }
.contact-block a:hover { color: var(--led); }
.contact-block { margin-bottom: 30px; }
@media (max-width: 760px) { .contact-grid { grid-template-columns: 1fr; gap: 20px; } }

.footer { padding: 40px 0; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--paper-faint); }
.footer-inner a { color: var(--paper-faint); text-decoration: none; }
.footer-inner a:hover { color: var(--led); }

/* ---------- Placeholder badge (IP / warranty pending) ---------- */
.tbd {
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.1em;
  color: var(--paper-faint); border: 1px dashed var(--ink-3);
  padding: 2px 8px; border-radius: 3px;
}

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }