/* Quartz Optics — TRIAL-LENS RIM STACK / REFRACTION DESK
   LEFT stacked trial-lens rims with diopter marks as nav
   (not Radio circular dial dock, not Cedar LEFT thermometer,
   not Copper LEFT valves, not Alpine cairn, not Lex spine,
   not Nocturne sleeves, not Seafood portholes, not Orbit RIGHT sats,
   not Loom cones, not Petal BOTTOM stems, not Tide TOP stubs) */
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&family=Outfit:wght@400;500;600;700;800&family=Instrument+Serif:ital@0;1&display=swap");

:root {
  --slate: #0f1724;
  --ice: #eef4f8;
  --plate: #ffffff;
  --quartz: #0d9488;
  --lens: #38bdf8;
  --diopter: #f59e0b;
  --violet: #7c3aed;
  --mute: #64748b;
  --rail: 120px;
  --wrap: min(1080px, calc(100% - 2.2rem));
  --font: "Outfit", system-ui, sans-serif;
  --display: "Instrument Serif", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100dvh;
  font: 16px/1.55 var(--font);
  color: var(--slate);
  background:
    radial-gradient(720px 400px at 88% 8%, rgba(56,189,248,0.14), transparent 55%),
    radial-gradient(640px 380px at 20% 85%, rgba(13,148,136,0.1), transparent 50%),
    linear-gradient(180deg, #e4eef5 0%, var(--ice) 45%, #dde8f0 100%);
  overflow-x: hidden;
  padding-left: var(--rail);
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
  background-image:
    radial-gradient(circle at 30% 20%, rgba(56,189,248,0.08) 0 40px, transparent 70px),
    repeating-linear-gradient(0deg, transparent 0 32px, rgba(15,23,36,0.03) 32px 33px);
}
a { color: inherit; }
img, svg { max-width: 100%; display: block; }
h1, h2, h3 {
  font-family: var(--display);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.02em;
  margin: 0 0 0.55rem;
  text-wrap: balance;
  color: var(--slate);
}
h1 { font-size: clamp(2.5rem, 5.6vw, 4.2rem); }
h2 { font-size: clamp(1.65rem, 2.9vw, 2.5rem); }
h3 { font-size: clamp(1.15rem, 1.6vw, 1.4rem); }
h1 em { font-style: italic; color: var(--quartz); }
h1 span { color: var(--lens); }

.back-st {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  right: max(10px, env(safe-area-inset-right));
  z-index: 160;
  padding: 0.42rem 0.7rem;
  font: 700 11px/1 var(--mono);
  background: var(--slate);
  color: var(--ice);
  border: 0;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.seal {
  position: fixed;
  bottom: max(16px, env(safe-area-inset-bottom));
  right: max(14px, env(safe-area-inset-right));
  z-index: 160;
  width: 66px; height: 66px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-decoration: none;
  background:
    radial-gradient(circle at 35% 30%, rgba(255,255,255,0.7), transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(56,189,248,0.35), transparent 55%),
    linear-gradient(145deg, #ccfbf1, var(--quartz));
  color: var(--slate);
  border: 2px solid rgba(56,189,248,0.65);
  font: 700 0.5rem/1.05 var(--mono);
  text-align: center;
  box-shadow:
    3px 3px 0 rgba(15,23,36,0.12),
    inset 0 0 0 6px rgba(255,255,255,0.25),
    0 0 16px rgba(13,148,136,0.3);
}
.seal b { display: block; font-size: 0.95rem; color: var(--slate); }

/* ===== NO standard header — LEFT TRIAL-LENS RIM STACK ===== */
.lenses {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 150;
  width: var(--rail);
  display: flex;
  flex-direction: column;
  background:
    linear-gradient(90deg, #0b1220 0%, #111827 100%);
  border-right: 3px solid var(--quartz);
  box-shadow: 14px 0 32px rgba(15,23,36,0.28);
  padding-top: env(safe-area-inset-top);
  overflow: hidden;
}
.lenses::before {
  /* vertical spindle / rod */
  content: "";
  position: absolute;
  left: 50%;
  top: 10%; bottom: 8%;
  width: 6px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, #64748b, #334155 40%, #94a3b8 70%, #475569);
  border-radius: 3px;
  box-shadow: inset 1px 0 0 rgba(255,255,255,0.25), 0 0 0 1px rgba(0,0,0,0.35);
  pointer-events: none;
  z-index: 0;
}
.lenses::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 5%;
  width: 28px; height: 10px;
  transform: translateX(-50%);
  background: #475569;
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(148,163,184,0.4);
  pointer-events: none;
  z-index: 0;
}
.lenses__cap {
  position: relative;
  z-index: 1;
  margin: 12px 10px 6px;
  padding: 0.65rem 0.3rem;
  text-align: center;
  text-decoration: none;
  color: var(--ice);
  background: rgba(13,148,136,0.15);
  border: 1px solid rgba(56,189,248,0.4);
}
.lenses__cap strong {
  display: block;
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 0.95;
}
.lenses__cap small {
  display: block;
  margin-top: 0.25rem;
  font: 600 0.48rem/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(238,244,248,0.55);
}
.lenses__dpt {
  position: relative;
  z-index: 1;
  margin: 0 10px 0.45rem;
  padding: 0.4rem 0.25rem;
  text-align: center;
  font-family: var(--mono);
  border: 1px solid rgba(245,158,11,0.45);
  background: rgba(245,158,11,0.1);
  color: var(--ice);
}
.lenses__dpt b {
  display: block;
  font-size: 0.95rem;
  color: var(--diopter);
  line-height: 1;
}
.lenses__dpt span {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.48rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(238,244,248,0.5);
}
.lens-toggle {
  display: none;
  position: relative;
  z-index: 1;
  margin: 0.35rem auto;
  width: 42px; height: 36px;
  background: transparent;
  border: 1px solid rgba(56,189,248,0.45);
  color: var(--ice);
  cursor: pointer;
  place-items: center;
  gap: 4px;
  flex-direction: column;
  padding: 0;
}
.lens-toggle i {
  display: block;
  width: 16px; height: 1.5px;
  background: currentColor;
}
.lenses__rims {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.25rem 0.45rem 1rem;
  overflow-y: auto;
  flex: 1;
  scrollbar-width: thin;
  align-items: center;
}
.lenses__rims a {
  position: relative;
  display: grid;
  place-items: center;
  width: 78px;
  height: 54px;
  text-decoration: none;
  font: 700 0.5rem/1 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--slate);
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(255,255,255,0.55), transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(56,189,248,0.25), transparent 55%),
    linear-gradient(145deg, #e0f2fe, #99f6e4 50%, #5eead4);
  border: 3px solid #94a3b8;
  box-shadow:
    inset 0 0 0 5px rgba(255,255,255,0.35),
    inset 0 0 0 7px rgba(15,23,36,0.08),
    0 3px 0 rgba(0,0,0,0.25),
    0 0 10px rgba(13,148,136,0.2);
  transition: transform 0.12s, box-shadow 0.12s;
}
.lenses__rims a::before {
  content: attr(data-dpt);
  position: absolute;
  left: -2px;
  top: 50%;
  transform: translateY(-50%);
  font: 700 0.42rem/1 var(--mono);
  color: var(--diopter);
  letter-spacing: 0;
  background: rgba(15,23,36,0.85);
  padding: 0.15rem 0.2rem;
  border-radius: 2px;
}
.lenses__rims a:nth-child(3n) {
  background:
    radial-gradient(circle at 35% 30%, rgba(255,255,255,0.5), transparent 40%),
    linear-gradient(145deg, #ddd6fe, #a78bfa 55%, #7c3aed);
  color: #fff;
  border-color: #a78bfa;
}
.lenses__rims a:nth-child(3n+1) {
  background:
    radial-gradient(circle at 35% 30%, rgba(255,255,255,0.55), transparent 40%),
    linear-gradient(145deg, #fef3c7, #fbbf24 55%, #d97706);
  border-color: #f59e0b;
}
.lenses__rims a:nth-child(5n) {
  width: 68px;
  height: 48px;
}
.lenses__rims a[aria-current="page"],
.lenses__rims a:hover {
  transform: scale(1.08) translateX(4px);
  box-shadow:
    inset 0 0 0 5px rgba(255,255,255,0.4),
    0 4px 0 rgba(0,0,0,0.25),
    0 0 0 3px rgba(13,148,136,0.5),
    0 0 16px rgba(56,189,248,0.4);
}

.shell { position: relative; z-index: 1; }
.wrap { width: var(--wrap); margin-inline: auto; }
.ribbon {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 1rem 0 0.2rem;
}
.ribbon span {
  font: 600 0.62rem/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.42rem 0.55rem;
  border: 1px dashed rgba(15,23,36,0.25);
  background: rgba(255,255,255,0.65);
  color: var(--mute);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font: 600 0.68rem/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--quartz);
  margin-bottom: 0.65rem;
}
.eyebrow::before {
  content: "";
  width: 18px; height: 18px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, #fff, transparent 40%),
    linear-gradient(145deg, #99f6e4, var(--quartz));
  border: 2px solid #94a3b8;
  box-shadow: inset 0 0 0 3px rgba(255,255,255,0.35);
}
.lead { font-size: 1.05rem; max-width: 58ch; color: #334155; }
.muted { color: var(--mute); }
.note {
  margin: 0.9rem 0 1.1rem;
  padding: 0.85rem 1rem;
  background: rgba(13,148,136,0.08);
  border-left: 3px solid var(--quartz);
  color: #1e293b;
  font-size: 0.95rem;
}
.section { padding: 2.1rem 0 0.4rem; }
.actions { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-top: 1.1rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.72rem 1.05rem;
  border: 1.5px solid var(--slate);
  background: transparent;
  color: var(--slate);
  font: 700 0.75rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 2px 2px 0 rgba(15,23,36,0.1);
  transition: transform 0.12s, box-shadow 0.12s, background 0.12s;
}
.btn:hover { transform: translate(-1px, -1px); box-shadow: 3px 3px 0 rgba(15,23,36,0.16); }
.btn-quartz { background: var(--quartz); border-color: #0f766e; color: #fff; }
.btn-lens { background: var(--lens); border-color: #0284c7; color: var(--slate); }
.btn-dpt { background: var(--diopter); border-color: #d97706; color: var(--slate); }
.btn-ghost { background: rgba(255,255,255,0.8); }

/* Refraction desk hero */
.refract {
  display: grid;
  grid-template-columns: 1.3fr 0.95fr;
  gap: 1.1rem;
  padding: 1.15rem 0 0.4rem;
  align-items: start;
}
.refract__desk {
  position: relative;
  background: var(--plate);
  border: 1.5px solid var(--slate);
  padding: 1.4rem 1.3rem 1.25rem;
  overflow: hidden;
  min-height: 360px;
  box-shadow: 8px 10px 0 rgba(15,23,36,0.08);
}
.refract__desk::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 75% 25%, rgba(56,189,248,0.12), transparent 40%),
    radial-gradient(circle at 20% 80%, rgba(13,148,136,0.1), transparent 45%),
    repeating-linear-gradient(90deg, transparent 0 40px, rgba(15,23,36,0.03) 40px 41px);
}
.refract__desk::after {
  content: "OD · OS · PD · dpt";
  position: absolute;
  top: 16px; right: 18px;
  font: 600 0.58rem/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
}
.refract__desk > * { position: relative; z-index: 1; }

.meters {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.55rem;
  margin: 1.15rem 0 0.2rem;
}
.meters article {
  border: 1px solid rgba(15,23,36,0.12);
  background: rgba(238,244,248,0.8);
  padding: 0.65rem 0.7rem;
  position: relative;
}
.meters article::before {
  content: "";
  position: absolute;
  top: 8px; right: 8px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #fff, var(--lens));
  border: 1.5px solid #94a3b8;
  box-shadow: inset 0 0 0 2px rgba(255,255,255,0.4);
}
.meters b {
  display: block;
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--slate);
}
.meters span {
  display: block;
  margin-top: 0.2rem;
  font: 500 0.62rem/1.2 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}

.tray-stack { display: grid; gap: 0.65rem; }
.blank {
  background: var(--plate);
  border: 1.5px solid var(--quartz);
  padding: 0.85rem 0.95rem;
  position: relative;
  box-shadow: 4px 4px 0 rgba(13,148,136,0.12);
  background-image: linear-gradient(120deg, rgba(56,189,248,0.08), transparent 40%);
}
.blank::before {
  content: "";
  position: absolute;
  left: 12px; top: 16px;
  width: 26px; height: 26px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(255,255,255,0.7), transparent 40%),
    linear-gradient(145deg, #99f6e4, var(--quartz));
  border: 2px solid #94a3b8;
  box-shadow: inset 0 0 0 4px rgba(255,255,255,0.3);
}
.blank--hot {
  border-color: var(--lens);
  background: #f0f9ff;
}
.blank__meta {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  font: 600 0.62rem/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 0.35rem 2.6rem;
}
.blank h3 { margin: 0 0 0 2.6rem; font-size: 1.15rem; }
.blank p { margin: 0.2rem 0 0 2.6rem; color: var(--mute); font-size: 0.9rem; font-family: var(--font); }
.blank .price {
  margin: 0.45rem 0 0 2.6rem;
  font: 700 1.05rem/1 var(--mono);
  color: var(--quartz);
}

.tiers, .split-3 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.7rem;
  margin-top: 1rem;
}
.split-3 { grid-template-columns: repeat(3, 1fr); }
.tier {
  background: var(--plate);
  border: 1px solid rgba(15,23,36,0.12);
  padding: 0.95rem 0.9rem;
  box-shadow: 3px 3px 0 rgba(15,23,36,0.05);
}
.tier .n {
  font: 700 0.7rem/1 var(--mono);
  letter-spacing: 0.12em;
  color: var(--quartz);
  margin-bottom: 0.45rem;
}
.tier h3 { margin-bottom: 0.25rem; }
.tier p { margin: 0; font-size: 0.9rem; font-family: var(--font); }

.board {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 1rem;
  margin-top: 0.85rem;
}
.tray { display: grid; gap: 0.5rem; }
.tray-row {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.7rem 0.8rem;
  background: var(--plate);
  border: 1px solid rgba(15,23,36,0.1);
}
.tray-row .code {
  font: 700 0.65rem/1 var(--mono);
  letter-spacing: 0.04em;
  color: var(--slate);
  background: radial-gradient(circle at 35% 30%, #fff, #99f6e4 60%, var(--quartz));
  padding: 0.55rem 0.1rem;
  text-align: center;
  border-radius: 50%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 2px solid #94a3b8;
}
.tray-row h3 { margin: 0; font-size: 1.05rem; }
.tray-row p { margin: 0.15rem 0 0; font-size: 0.85rem; color: var(--mute); font-family: var(--font); }
.tray-row .price {
  font: 700 0.9rem/1 var(--mono);
  color: var(--quartz);
  white-space: nowrap;
}

.panel {
  background: var(--plate);
  border: 1px solid rgba(15,23,36,0.12);
  padding: 1rem 1.05rem;
  margin-bottom: 0.7rem;
}
.panel.dark {
  background: var(--slate);
  color: var(--ice);
  border-color: var(--slate);
}
.panel.dark .kv span { color: rgba(238,244,248,0.75); }
.panel h3 { margin-bottom: 0.7rem; }
.panel.dark h3 { color: var(--ice); }
.kv {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 0.5rem;
  padding: 0.45rem 0;
  border-bottom: 1px dashed rgba(15,23,36,0.12);
  font-size: 0.92rem;
}
.panel.dark .kv { border-bottom-color: rgba(238,244,248,0.12); }
.kv:last-child { border-bottom: 0; }
.kv b {
  font: 700 0.68rem/1.4 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--quartz);
}
.panel.dark .kv b { color: var(--lens); }

.menu-head {
  display: grid;
  grid-template-columns: 1fr minmax(200px, 280px);
  gap: 1rem;
  align-items: end;
  margin-bottom: 0.9rem;
}
.menu-head input[type="search"] {
  width: 100%;
  padding: 0.8rem 0.9rem;
  border: 1.5px solid var(--slate);
  background: var(--plate);
  font: 500 0.9rem/1.2 var(--font);
  color: var(--slate);
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.9rem;
}
.chip {
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--slate);
  background: var(--plate);
  font: 700 0.65rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--slate);
}
.chip.on { background: var(--quartz); color: #fff; border-color: #0f766e; }

.menu-sheet { display: grid; gap: 0.55rem; }
.lens-card {
  display: grid;
  grid-template-columns: 58px 1.2fr 1.4fr auto auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem 0.85rem;
  background: var(--plate);
  border: 1px solid rgba(15,23,36,0.12);
  box-shadow: 2px 2px 0 rgba(15,23,36,0.05);
}
.lens-card .code {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(255,255,255,0.7), transparent 40%),
    linear-gradient(145deg, #99f6e4, var(--quartz));
  color: var(--slate);
  font: 700 0.52rem/1 var(--mono);
  border: 2px solid #94a3b8;
  box-shadow: inset 0 0 0 4px rgba(255,255,255,0.3);
}
.lens-card .cat {
  font: 600 0.62rem/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--quartz);
  margin-bottom: 0.2rem;
}
.lens-card h3 { margin: 0.1rem 0 0; font-size: 1.1rem; }
.lens-card .blurb { margin: 0; font-size: 0.88rem; font-family: var(--font); }
.lens-card .price {
  font: 700 1rem/1 var(--mono);
  color: var(--slate);
  white-space: nowrap;
}

.form {
  display: grid;
  gap: 0.7rem;
  background: var(--plate);
  border: 1.5px solid var(--slate);
  padding: 1.1rem;
  box-shadow: 4px 4px 0 rgba(15,23,36,0.07);
}
.form label {
  display: grid;
  gap: 0.35rem;
  font: 600 0.72rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}
.form input, .form select, .form textarea {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border: 1px solid rgba(15,23,36,0.2);
  background: #fff;
  font: 500 0.95rem/1.3 var(--font);
  color: var(--slate);
  text-transform: none;
  letter-spacing: 0;
}
.form textarea { min-height: 110px; resize: vertical; }

.faq details {
  background: var(--plate);
  border: 1px solid rgba(15,23,36,0.12);
  padding: 0.85rem 1rem;
  margin-bottom: 0.5rem;
}
.faq summary {
  cursor: pointer;
  font-family: var(--display);
  font-size: 1.15rem;
  color: var(--slate);
}
.faq p { margin: 0.55rem 0 0; font-family: var(--font); }

.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.7rem;
  margin-top: 1rem;
}
.person {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 0.8rem;
  align-items: center;
  padding: 0.85rem;
  background: var(--plate);
  border: 1px solid rgba(15,23,36,0.12);
}
.avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(255,255,255,0.55), transparent 45%),
    linear-gradient(145deg, var(--lens), var(--quartz));
  border: 2px solid #94a3b8;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  margin-top: 1rem;
}
.g {
  min-height: 140px;
  display: grid;
  place-items: end start;
  padding: 0.85rem;
  font: 700 0.7rem/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ice);
  background:
    linear-gradient(180deg, transparent 35%, rgba(15,23,36,0.85)),
    radial-gradient(circle at 40% 30%, rgba(56,189,248,0.45), transparent 45%),
    linear-gradient(135deg, #134e4a, var(--slate) 55%, #0e7490);
  border: 1px solid rgba(15,23,36,0.25);
}
.g:nth-child(2n) {
  background:
    linear-gradient(180deg, transparent 35%, rgba(15,23,36,0.85)),
    radial-gradient(circle at 60% 40%, rgba(124,58,237,0.35), transparent 50%),
    linear-gradient(160deg, #1e1b4b, var(--slate));
}
.g:nth-child(3n) {
  background:
    linear-gradient(180deg, transparent 35%, rgba(15,23,36,0.85)),
    radial-gradient(circle at 50% 25%, rgba(245,158,11,0.4), transparent 42%),
    linear-gradient(120deg, var(--slate), #115e59);
}

.buyer {
  width: 100%;
  margin-top: 1.3rem;
  border-collapse: collapse;
  font-size: 0.86rem;
}
.buyer th, .buyer td {
  border: 1px solid rgba(15,23,36,0.14);
  padding: 0.75rem 0.9rem;
  text-align: left;
  background: rgba(255,255,255,0.9);
}
.buyer th {
  font: 700 0.68rem/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--quartz);
  background: rgba(13,148,136,0.1);
}

.footer {
  margin-top: 2.4rem;
  padding: 1.6rem 0 1.2rem;
  border-top: 1px solid rgba(15,23,36,0.12);
  background: rgba(15,23,36,0.04);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1.2rem;
}
.footer p { margin: 0.35rem 0 0; color: var(--mute); font-size: 0.92rem; font-family: var(--font); }
.footer a { text-decoration: underline; text-underline-offset: 2px; }

.toast {
  position: fixed;
  left: calc(50% + var(--rail) / 2);
  bottom: max(20px, env(safe-area-inset-bottom));
  transform: translateX(-50%) translateY(12px);
  z-index: 200;
  padding: 0.7rem 1rem;
  background: var(--slate);
  color: var(--ice);
  font: 600 0.78rem/1 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  border: 1px solid var(--quartz);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.reveal { opacity: 0; transform: translateY(12px); transition: opacity 0.45s, transform 0.45s; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 960px) {
  .refract, .board, .footer-grid { grid-template-columns: 1fr; }
  .tiers { grid-template-columns: repeat(2, 1fr); }
  .lens-card { grid-template-columns: 52px 1fr auto; }
  .lens-card .blurb { display: none; }
  .menu-head { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .lenses__dpt { display: none; }
}

@media (max-width: 720px) {
  :root { --rail: 0px; }
  body { padding-left: 0; padding-bottom: 72px; }
  .lenses {
    top: auto; left: 0; right: 0; bottom: 0;
    width: auto; height: 72px;
    flex-direction: row;
    align-items: center;
    border-right: 0;
    border-top: 3px solid var(--quartz);
    box-shadow: 0 -10px 28px rgba(15,23,36,0.28);
    padding: 0 env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  }
  .lenses::before, .lenses::after { display: none; }
  .lenses__cap {
    margin: 0.45rem 0.4rem 0.45rem 0.65rem;
    min-width: 78px;
    padding: 0.45rem 0.35rem;
  }
  .lenses__cap small { display: none; }
  .lenses__rims {
    display: none;
    position: absolute;
    left: 0; right: 0;
    bottom: 100%;
    flex-direction: column;
    align-items: stretch;
    background: #0b1220;
    border-top: 2px solid var(--quartz);
    max-height: 60vh;
    padding: 0.55rem;
  }
  .lenses__rims.is-open { display: flex; }
  .lenses__rims a {
    width: auto;
    height: auto;
    min-height: 48px;
    border-radius: 4px;
    place-items: center start;
    padding: 0.75rem 0.85rem;
    gap: 0.65rem;
  }
  .lenses__rims a::before {
    position: static;
    transform: none;
  }
  .lens-toggle {
    display: grid;
    margin: 0 0.85rem 0 auto;
    width: 46px; height: 40px;
  }
  .meters, .split-3, .team-grid { grid-template-columns: 1fr; }
  .tiers { grid-template-columns: 1fr 1fr; }
  .refract__desk::after { display: none; }
  .seal {
    width: 56px; height: 56px;
    bottom: calc(80px + env(safe-area-inset-bottom));
  }
  .lens-card { grid-template-columns: 48px 1fr; }
  .lens-card .price, .lens-card button { grid-column: 2; }
  .toast { left: 50%; }
  .back-st { right: auto; left: max(10px, env(safe-area-inset-left)); }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}


/* NAV-FIX: always-visible back + working mobile menu */
.back-st{
  position:fixed!important;
  z-index:9999!important;
  display:inline-flex!important;
  align-items:center!important;
  justify-content:center!important;
  min-height:40px!important;
  padding:.45rem .75rem!important;
  background:#111!important;
  color:#f5f5f5!important;
  border:0!important;
  box-shadow:0 4px 14px rgba(0,0,0,.28)!important;
  text-decoration:none!important;
  text-transform:uppercase!important;
  font-weight:700!important;
  letter-spacing:.06em!important;
  opacity:1!important;
  visibility:visible!important;
  pointer-events:auto!important;
  transform:none!important;
  writing-mode:horizontal-tb!important;
  clip-path:none!important;
  mix-blend-mode:normal!important;
  right:auto!important;
  bottom:auto!important;
}
.back-st{top:max(10px,env(safe-area-inset-top))!important;left:max(10px,env(safe-area-inset-left))!important;border-radius:999px!important;}

/* LAYOUT-FIX: hero composition variant */
@media(min-width:901px){.refract{grid-template-columns:.85fr 1.15fr!important;} .refract>:first-child{order:2!important;} .refract>:last-child{order:1!important;}}

@media (max-width:820px){
  [class*="toggle"],.nav-toggle{
    display:inline-flex!important;align-items:center;justify-content:center;
    min-width:44px;min-height:44px;cursor:pointer;
    pointer-events:auto!important;visibility:visible!important;opacity:1!important;
    background:#111!important;color:#fff!important;
    border:1px solid rgba(255,255,255,.35)!important;
    z-index:10002!important;
  }
  [class*="toggle"] i,.nav-toggle i{background:#fff!important;display:block!important;}
  
  .lenses{
    top:auto!important;left:0!important;right:0!important;bottom:0!important;
    width:100%!important;height:auto!important;min-height:62px!important;
    max-height:none!important;flex-direction:row!important;align-items:center!important;
    overflow:visible!important;z-index:9000!important;
    padding-bottom:env(safe-area-inset-bottom)!important;
  }
  .lenses [class*="__rack"],.lenses [class*="__shelf"],.lenses [class*="__strand"],.lenses [class*="__frames"],.lenses [class*="__stones"],.lenses [class*="__wheels"],.lenses [class*="__links"],.lenses [class*="__flow"],.lenses [class*="__grid"],.lenses [class*="__route"],[class*="__steps"],[class*="__ports"],[class*="__nav"],[class*="__menu"],[class*="__list"],.lenses [class*="__beads"]{
    display:none!important;
    position:absolute!important;bottom:100%!important;top:auto!important;left:0!important;right:0!important;
    max-height:min(70dvh,520px)!important;overflow:auto!important;
    flex-direction:column!important;gap:.35rem!important;
    padding:.75rem!important;
    background:#141414!important;color:#f5f5f5!important;
    border-top:1px solid rgba(255,255,255,.12)!important;
    z-index:10001!important;
  }
  body{padding-left:0!important;padding-right:0!important;padding-bottom:max(76px,calc(64px + env(safe-area-inset-bottom)))!important;padding-top:0!important;}
  .seal{top:max(10px,env(safe-area-inset-top))!important;right:max(10px,env(safe-area-inset-right))!important;left:auto!important;bottom:auto!important;z-index:9001!important;}
  [class*="toggle"]{margin-left:auto!important;position:relative!important;transform:none!important;}

  [class*="__rack"].is-open,[class*="__shelf"].is-open,[class*="__strand"].is-open,[class*="__frames"].is-open,[class*="__stones"].is-open,[class*="__wheels"].is-open,[class*="__links"].is-open,[class*="__flow"].is-open,[class*="__grid"].is-open,[class*="__route"],[class*="__steps"],[class*="__ports"],[class*="__nav"],[class*="__menu"],[class*="__list"].is-open,[class*="__beads"].is-open,.is-open[class*="__"],.topnav__links.is-open,.mast__links.is-open{display:flex!important;}
  .back-st{top:max(10px,env(safe-area-inset-top))!important;left:max(10px,env(safe-area-inset-left))!important;transform:none!important;writing-mode:horizontal-tb!important;}
}