/* ══════════════════════════════════════════════════════════════════
   hush One — soft-UI system
   One global light: top-left. Everything raised casts a dark shadow
   bottom-right and a light edge top-left; everything pressed inverts.
   ══════════════════════════════════════════════════════════════════ */

@font-face {
  font-family: "Nunito";
  src: url("../fonts/nunito-var.woff2") format("woff2");
  font-weight: 100 1000;
  font-style: normal;
  font-display: swap;
}

/* ── Theme pours ─────────────────────────────────────────────────── */
:root,
:root[data-theme="bone"] {
  --slab:      #e6e1d7;
  --slab-hi:   #f4f0e8;
  --slab-lo:   #d5cfc2;
  --sh-dark:   rgba(148, 138, 118, 0.55);
  --sh-light:  rgba(255, 255, 255, 0.92);
  --ink:       #43403a;
  --ink-soft:  #5f5a51;
  --ink-faint: #68635a;
  --glow:      #ef9a52;
  --glow-deep: #d97f36;
  --focus:     #b3641f;
  --warm-wash: rgba(255, 178, 102, 0.16);
  --cool-wash: rgba(150, 180, 230, 0.14);
}
:root[data-theme="slate"] {
  --slab:      #dde2e8;
  --slab-hi:   #eef2f6;
  --slab-lo:   #ccd2da;
  --sh-dark:   rgba(128, 138, 152, 0.5);
  --sh-light:  rgba(255, 255, 255, 0.9);
  --ink:       #39404a;
  --ink-soft:  #525a66;
  --ink-faint: #5c646f;
  --glow:      #f2a05c;
  --glow-deep: #d5813a;
  --focus:     #a85f1e;
  --warm-wash: rgba(255, 178, 102, 0.15);
  --cool-wash: rgba(130, 165, 220, 0.16);
}
:root[data-theme="sage"] {
  --slab:      #dfe6dc;
  --slab-hi:   #f0f5ee;
  --slab-lo:   #ced7c9;
  --sh-dark:   rgba(130, 142, 124, 0.5);
  --sh-light:  rgba(255, 255, 255, 0.9);
  --ink:       #3c453d;
  --ink-soft:  #545e55;
  --ink-faint: #5e6860;
  --glow:      #f0a054;
  --glow-deep: #d3813a;
  --focus:     #a85f1e;
  --warm-wash: rgba(255, 178, 102, 0.15);
  --cool-wash: rgba(140, 175, 215, 0.14);
}
:root[data-theme="blush"] {
  --slab:      #ece0db;
  --slab-hi:   #f8efea;
  --slab-lo:   #dbcfc8;
  --sh-dark:   rgba(152, 128, 118, 0.5);
  --sh-light:  rgba(255, 255, 255, 0.9);
  --ink:       #4a3f3b;
  --ink-soft:  #625550;
  --ink-faint: #6b5f5a;
  --glow:      #ef9250;
  --glow-deep: #d3742f;
  --focus:     #a85a1c;
  --warm-wash: rgba(255, 168, 96, 0.16);
  --cool-wash: rgba(150, 175, 225, 0.13);
}

:root {
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --spring-soft: cubic-bezier(0.3, 1.3, 0.5, 1);
  --ease-out: cubic-bezier(0.22, 0.9, 0.36, 1);
  --warmth: 0.6;            /* set from JS: light-warmth slider 0..1 */
  --radius-lg: 34px;
  --radius-md: 22px;
  --radius-sm: 14px;
}

/* ── Base ────────────────────────────────────────────────────────── */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Nunito", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(120% 90% at 18% 0%, var(--slab-hi) 0%, transparent 55%),
    radial-gradient(140% 110% at 88% 100%, var(--slab-lo) 0%, transparent 60%),
    var(--slab);
  background-attachment: fixed;
  min-height: 100vh;
  transition: background-color 0.6s var(--ease-out);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* warmth wash — a barely-there veil that tracks the warmth slider */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(160deg,
    color-mix(in srgb, var(--warm-wash) calc(var(--warmth) * 100%), transparent),
    color-mix(in srgb, var(--cool-wash) calc((1 - var(--warmth)) * 100%), transparent));
  opacity: 0.9;
  z-index: 0;
  transition: background 0.4s var(--ease-out);
}

main, .site-head, .site-foot { position: relative; z-index: 1; }

::selection { background: var(--glow); color: #fff; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 8px;
}

h1, h2, h3 { margin: 0; letter-spacing: 0.01em; }
p { margin: 0; }

/* ── Shared shadow recipes ───────────────────────────────────────── */
.raise {
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    9px 9px 18px var(--sh-dark),
    -9px -9px 18px var(--sh-light),
    inset 1px 1px 1px rgba(255, 255, 255, 0.55),
    inset -1px -1px 2px rgba(0, 0, 0, 0.04);
}
.inset {
  background: linear-gradient(145deg, var(--slab-lo), var(--slab-hi));
  box-shadow:
    inset 7px 7px 14px var(--sh-dark),
    inset -7px -7px 14px var(--sh-light);
}

/* ── Header ──────────────────────────────────────────────────────── */
.site-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px max(clamp(18px, 4vw, 40px), calc((100vw - 1180px) / 2 + clamp(18px, 4vw, 40px))) 14px;
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--slab) 84%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(1.05);
  backdrop-filter: blur(14px) saturate(1.05);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--sh-dark) 35%, transparent);
}

section[id] { scroll-margin-top: 96px; }

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  text-decoration: none;
  padding: 10px 18px;
  border-radius: 999px;
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    7px 7px 16px var(--sh-dark),
    -7px -7px 16px var(--sh-light),
    inset 1px 1px 1px rgba(255, 255, 255, 0.55);
}
.wordmark-one { color: var(--ink-soft); font-weight: 600; margin-left: 2px; }
.wordmark-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--glow);
  box-shadow: 0 0 10px var(--glow), inset -1px -1px 2px rgba(0,0,0,0.2);
  animation: breathe 4s ease-in-out infinite;
}

.site-nav {
  display: flex;
  gap: 8px;
  padding: 8px;
  border-radius: 999px;
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    7px 7px 16px var(--sh-dark),
    -7px -7px 16px var(--sh-light);
  overflow-x: auto;
  scrollbar-width: none;
}
.site-nav::-webkit-scrollbar { display: none; }

.nav-pill {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 18px;
  border-radius: 999px;
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  transition: color 0.25s var(--ease-out), box-shadow 0.25s var(--spring), transform 0.25s var(--spring);
}
.nav-pill:hover { color: var(--ink); transform: translateY(-1px); }
.nav-pill.is-active {
  color: var(--ink);
  background: linear-gradient(145deg, var(--slab-lo), var(--slab-hi));
  box-shadow:
    inset 5px 5px 10px var(--sh-dark),
    inset -5px -5px 10px var(--sh-light);
  transform: none;
}
.nav-pill--cta.is-active, .nav-pill--cta:hover { color: var(--glow-deep); }

/* ── Sections ────────────────────────────────────────────────────── */
.slab-section {
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(48px, 9vh, 96px) clamp(18px, 4vw, 40px) 8px;
}
.slab-section--hero { padding-top: clamp(28px, 5vh, 56px); }

.eyebrow {
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(1.9rem, 4.2vw, 2.9rem);
  font-weight: 800;
  margin-bottom: 14px;
}
.section-sub {
  color: var(--ink-soft);
  font-size: 1.06rem;
  line-height: 1.65;
  max-width: 56ch;
  margin-bottom: 38px;
}

.hero-copy { max-width: 720px; margin-bottom: 44px; }
.hero-title {
  font-size: clamp(2.3rem, 5.6vw, 3.9rem);
  font-weight: 800;
  line-height: 1.08;
  margin-bottom: 18px;
}
.hero-sub { color: var(--ink-soft); font-size: 1.1rem; line-height: 1.65; max-width: 54ch; }

/* ── The instrument panel ────────────────────────────────────────── */
.panel {
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3.4vw, 42px);
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    16px 16px 36px var(--sh-dark),
    -14px -14px 32px var(--sh-light),
    inset 2px 2px 2px rgba(255, 255, 255, 0.6),
    inset -2px -2px 3px rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.5s var(--ease-out), filter 0.5s var(--ease-out);
}
.panel[data-power="off"] { filter: saturate(0.82) brightness(0.97); }

.panel-strip {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: clamp(20px, 3vw, 34px);
}
.standby-light {
  flex: 0 0 auto;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ffd9ae, var(--glow) 55%, var(--glow-deep));
  box-shadow:
    0 0 14px 2px var(--glow),
    inset -2px -2px 3px rgba(120, 50, 0, 0.35),
    inset 2px 2px 3px rgba(255, 255, 255, 0.6);
  animation: breathe 3.6s ease-in-out infinite;
}
.panel[data-power="off"] .standby-light {
  background: radial-gradient(circle at 35% 30%, #e8dccf, #cbbfa9 60%, #b3a48b);
  box-shadow:
    0 0 6px 1px rgba(180, 160, 130, 0.5),
    inset -2px -2px 3px rgba(90, 70, 50, 0.3),
    inset 2px 2px 3px rgba(255, 255, 255, 0.5);
  animation: breathe-slow 6.5s ease-in-out infinite;
}
.panel[data-night="on"] .standby-light { animation-duration: 6s; }

/* night mode: the whole slab lowers its voice */
body.night::before { opacity: 0.45; }
body.night .panel {
  filter: brightness(0.94) saturate(0.85);
}
body.night .dial-pointer::before {
  box-shadow:
    0 0 5px var(--glow),
    inset 1px 1px 2px rgba(255, 255, 255, 0.55),
    inset -1px -2px 3px rgba(120, 50, 0, 0.4);
}
body.night .slider-fill { box-shadow: none; }

@keyframes breathe {
  0%, 100% { box-shadow: 0 0 8px 1px var(--glow), inset -2px -2px 3px rgba(120,50,0,0.35), inset 2px 2px 3px rgba(255,255,255,0.6); }
  50%      { box-shadow: 0 0 20px 5px var(--glow), inset -2px -2px 3px rgba(120,50,0,0.35), inset 2px 2px 3px rgba(255,255,255,0.6); }
}
@keyframes breathe-slow {
  0%, 100% { opacity: 0.55; }
  50%      { opacity: 1; }
}

.panel-readout { display: flex; flex-direction: column; gap: 2px; }
.readout-label {
  font-size: 0.78rem; font-weight: 800; letter-spacing: 0.26em; text-transform: uppercase;
  color: var(--ink);
}
.readout-state { font-size: 0.92rem; color: var(--ink-soft); font-weight: 600; }
.panel-brand {
  margin-left: auto;
  font-weight: 800; letter-spacing: 0.18em; color: var(--ink-faint);
  font-size: 0.95rem; text-transform: uppercase;
}
.panel-brand span { font-weight: 600; font-size: 0.75rem; }

.panel-grid {
  display: grid;
  grid-template-columns: minmax(300px, 400px) 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}

/* ── Dial ────────────────────────────────────────────────────────── */
.dial-well { display: flex; flex-direction: column; align-items: center; gap: 18px; }

.dial-ring {
  position: absolute;
  top: 0;
  left: 50%;
  width: var(--dial-size, 300px);
  height: var(--dial-size, 300px);
  transform: translateX(-50%);
  border-radius: 50%;
  pointer-events: none;
}
.dial-tick {
  position: absolute;
  left: 50%; top: 50%;
  width: 3px; height: 12px;
  margin: -6px -1.5px;
  border-radius: 2px;
  background: var(--ink-faint);
  opacity: 0.55;
  transform: rotate(var(--a)) translateY(calc(var(--dial-size, 300px) / -2 - 12px));
}
.dial-tick--major { width: 4px; height: 18px; margin: -9px -2px; opacity: 0.8; }

.dial {
  --dial-angle: 0deg;
  position: relative;
  width: var(--dial-size, 300px);
  height: var(--dial-size, 300px);
  border-radius: 50%;
  cursor: grab;
  touch-action: none;
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    12px 12px 26px var(--sh-dark),
    -12px -12px 26px var(--sh-light),
    inset 2px 2px 3px rgba(255, 255, 255, 0.65),
    inset -3px -3px 5px rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.3s var(--spring);
  overflow: hidden; /* rotating pointer's bbox must not widen the page */
  user-select: none;
  -webkit-user-select: none;
}
.dial:hover {
  box-shadow:
    14px 14px 30px var(--sh-dark),
    -14px -14px 30px var(--sh-light),
    inset 2px 2px 3px rgba(255, 255, 255, 0.7),
    inset -3px -3px 5px rgba(0, 0, 0, 0.05);
}
.dial.is-grabbed {
  cursor: grabbing;
  box-shadow:
    7px 7px 16px var(--sh-dark),
    -7px -7px 16px var(--sh-light),
    inset 3px 3px 6px rgba(0, 0, 0, 0.06),
    inset -2px -2px 4px rgba(255, 255, 255, 0.5);
}
.dial-face { position: absolute; inset: 0; }

.dial-pointer {
  position: absolute;
  inset: 0;
  transform: rotate(var(--dial-angle));
  will-change: transform;
}
.dial-pointer::before {
  content: "";
  position: absolute;
  left: 50%; top: 7%;
  width: 14px; height: 30px;
  margin-left: -7px;
  border-radius: 8px;
  background: linear-gradient(180deg, var(--glow), var(--glow-deep));
  box-shadow:
    0 0 12px var(--glow),
    inset 1px 1px 2px rgba(255, 255, 255, 0.55),
    inset -1px -2px 3px rgba(120, 50, 0, 0.4);
}

.dial-hub {
  position: absolute;
  inset: 19%;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  background: linear-gradient(145deg, var(--slab-lo), var(--slab-hi));
  box-shadow:
    inset 8px 8px 16px var(--sh-dark),
    inset -8px -8px 16px var(--sh-light);
}
.dial-value {
  font-size: clamp(2rem, calc(var(--dial-size, 300px) * 0.14), 3.2rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  transition: transform 0.18s var(--spring);
}
.dial-value.tick { transform: scale(1.06); }
.dial-unit {
  font-size: 0.78rem; font-weight: 800; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--ink-soft);
}
.dial-caption { font-size: 0.9rem; color: var(--ink-soft); font-weight: 600; margin-top: 8px; }

.dial-well { position: relative; }

/* panel off: dial sinks */
.panel[data-power="off"] .dial {
  box-shadow:
    inset 8px 8px 16px var(--sh-dark),
    inset -8px -8px 16px var(--sh-light);
  cursor: not-allowed;
}
.panel[data-power="off"] .dial-pointer::before { background: var(--slab-lo); box-shadow: none; }

/* ── Toggles ─────────────────────────────────────────────────────── */
.toggle-row {
  display: flex;
  gap: clamp(12px, 2vw, 24px);
  flex-wrap: wrap;
}
.toggle {
  flex: 1 1 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 18px 14px 16px;
  border: none;
  border-radius: var(--radius-md);
  font: inherit;
  color: var(--ink);
  cursor: pointer;
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    7px 7px 15px var(--sh-dark),
    -7px -7px 15px var(--sh-light),
    inset 1px 1px 1px rgba(255, 255, 255, 0.5);
  transition: box-shadow 0.22s var(--spring), transform 0.22s var(--spring);
}
.toggle:hover { transform: translateY(-2px); }
.toggle:active { transform: translateY(1px); }

.toggle-track {
  position: relative;
  width: 74px; height: 40px;
  border-radius: 999px;
  background: linear-gradient(145deg, var(--slab-lo), var(--slab-hi));
  box-shadow:
    inset 5px 5px 10px var(--sh-dark),
    inset -5px -5px 10px var(--sh-light);
  transition: box-shadow 0.25s var(--ease-out);
}
.toggle-nub {
  position: absolute;
  top: 5px; left: 5px;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    3px 3px 6px var(--sh-dark),
    -2px -2px 5px var(--sh-light),
    inset 1px 1px 1px rgba(255, 255, 255, 0.6);
  transition: left 0.28s var(--spring), background 0.28s var(--ease-out), box-shadow 0.28s var(--ease-out);
}
.toggle[aria-checked="true"] .toggle-nub {
  left: 39px;
  background: radial-gradient(circle at 35% 30%, #ffd9ae, var(--glow) 60%, var(--glow-deep));
  box-shadow:
    0 0 12px 1px var(--glow),
    3px 3px 6px var(--sh-dark),
    inset 1px 1px 2px rgba(255, 255, 255, 0.55);
}
.toggle[aria-checked="true"] .toggle-track {
  box-shadow:
    inset 5px 5px 10px var(--sh-dark),
    inset -5px -5px 10px var(--sh-light),
    inset 0 0 18px color-mix(in srgb, var(--glow) 26%, transparent);
}
.toggle-label {
  font-size: 0.8rem; font-weight: 800;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink-soft);
}
.toggle[aria-checked="true"] .toggle-label { color: var(--ink); }

.toggle.is-disabled {
  cursor: not-allowed;
  transform: none;
  box-shadow:
    inset 5px 5px 10px var(--sh-dark),
    inset -5px -5px 10px var(--sh-light);
  opacity: 0.6;
}

/* ── Sliders ─────────────────────────────────────────────────────── */
.slider-stack { display: flex; flex-direction: column; gap: 22px; margin-top: 26px; }

.soft-slider { position: relative; transition: opacity 0.3s var(--ease-out); }
.soft-slider-head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 10px;
}
.soft-slider-head label {
  font-size: 0.8rem; font-weight: 800;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink-soft);
}
.soft-slider-head output {
  font-weight: 800; font-variant-numeric: tabular-nums; color: var(--ink);
  font-size: 1rem;
}

.slider-track {
  position: relative;
  height: 34px;
  border-radius: 999px;
  background: linear-gradient(145deg, var(--slab-lo), var(--slab-hi));
  box-shadow:
    inset 6px 6px 12px var(--sh-dark),
    inset -6px -6px 12px var(--sh-light);
  pointer-events: none;
}
.slider-fill {
  position: absolute;
  left: 8px; top: 50%;
  height: 6px;
  width: calc((100% - 16px) * var(--p, 0.5));
  transform: translateY(-50%);
  border-radius: 3px;
  background: linear-gradient(90deg, var(--glow), var(--glow-deep));
  box-shadow: 0 0 8px color-mix(in srgb, var(--glow) 60%, transparent);
}
.slider-thumb {
  position: absolute;
  top: 50%;
  left: calc(8px + (100% - 16px) * var(--p, 0.5));
  width: 30px; height: 30px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    4px 4px 8px var(--sh-dark),
    -3px -3px 7px var(--sh-light),
    inset 1px 1px 1px rgba(255, 255, 255, 0.65);
  transition: box-shadow 0.2s var(--spring), scale 0.2s var(--spring);
}
.soft-slider.is-dragging .slider-thumb,
.sr-range:focus-visible + .slider-track .slider-thumb {
  scale: 1.12;
  box-shadow:
    6px 6px 12px var(--sh-dark),
    -4px -4px 10px var(--sh-light),
    inset 1px 1px 1px rgba(255, 255, 255, 0.7),
    0 0 0 4px color-mix(in srgb, var(--glow) 22%, transparent);
}
/* real, accessible range input stretched over the visual track */
.sr-range {
  -webkit-appearance: none;
  appearance: none;
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 46px;
  width: 100%;
  margin: 0;
  background: transparent;
  cursor: pointer;
}
.sr-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 44px; height: 44px;
  background: transparent;
  cursor: pointer;
}
.sr-range::-moz-range-thumb {
  width: 44px; height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
}
.sr-range::-moz-range-track { background: transparent; }

.soft-slider.is-disabled { opacity: 0.45; }
.soft-slider.is-disabled .sr-range { pointer-events: none; cursor: not-allowed; }
.soft-slider.is-disabled .slider-fill { background: var(--slab-lo); box-shadow: none; }

/* ── Presets ─────────────────────────────────────────────────────── */
.preset-block { margin-top: 30px; }
.preset-title {
  font-size: 0.8rem; font-weight: 800;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 14px;
}
.preset-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(10px, 1.6vw, 18px);
}
.preset {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 18px 8px 14px;
  border: none;
  border-radius: var(--radius-md);
  font: inherit;
  cursor: pointer;
  color: var(--ink);
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    7px 7px 14px var(--sh-dark),
    -7px -7px 14px var(--sh-light),
    inset 1px 1px 1px rgba(255, 255, 255, 0.5);
  transition: box-shadow 0.22s var(--spring), transform 0.22s var(--spring), color 0.22s;
}
.preset:hover { transform: translateY(-3px); }
.preset:active { transform: translateY(1px) scale(0.98); }
.preset-glyph {
  font-size: 1.5rem;
  line-height: 1;
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--slab-lo), var(--slab-hi));
  box-shadow:
    inset 4px 4px 8px var(--sh-dark),
    inset -4px -4px 8px var(--sh-light);
  transition: box-shadow 0.25s var(--ease-out), color 0.25s;
}
.preset-name { font-size: 0.82rem; font-weight: 800; letter-spacing: 0.12em; color: var(--ink-soft); }
.preset[aria-checked="true"] {
  background: linear-gradient(145deg, var(--slab-lo), var(--slab-hi));
  box-shadow:
    inset 6px 6px 12px var(--sh-dark),
    inset -6px -6px 12px var(--sh-light);
  transform: none;
}
.preset[aria-checked="true"] .preset-glyph {
  color: var(--glow-deep);
  box-shadow:
    inset 4px 4px 8px var(--sh-dark),
    inset -4px -4px 8px var(--sh-light),
    inset 0 0 16px color-mix(in srgb, var(--glow) 30%, transparent);
  text-shadow: 0 0 10px var(--glow);
}
.preset[aria-checked="true"] .preset-name { color: var(--ink); }
.preset.is-disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
  box-shadow:
    inset 5px 5px 10px var(--sh-dark),
    inset -5px -5px 10px var(--sh-light);
}
.preset-hint { margin-top: 14px; font-size: 0.88rem; color: var(--ink-soft); font-weight: 600; }

/* ── Feature cards ───────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: clamp(18px, 2.6vw, 30px);
}
.card {
  padding: 30px 26px 28px;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    10px 10px 22px var(--sh-dark),
    -10px -10px 22px var(--sh-light),
    inset 1px 1px 1px rgba(255, 255, 255, 0.5);
  transition: transform 0.3s var(--spring), box-shadow 0.3s var(--spring);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow:
    14px 14px 30px var(--sh-dark),
    -14px -14px 30px var(--sh-light),
    inset 1px 1px 1px rgba(255, 255, 255, 0.55);
}
.card-icon {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  font-size: 1.6rem;
  border-radius: 50%;
  margin-bottom: 20px;
  color: var(--glow-deep);
  background: linear-gradient(145deg, var(--slab-lo), var(--slab-hi));
  box-shadow:
    inset 5px 5px 10px var(--sh-dark),
    inset -5px -5px 10px var(--sh-light);
}
.card h3 { font-size: 1.18rem; font-weight: 800; margin-bottom: 10px; }
.card p { color: var(--ink-soft); line-height: 1.6; font-size: 0.98rem; }

/* ── Colour variants ─────────────────────────────────────────────── */
.variant-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: clamp(16px, 2.4vw, 28px);
}
.variant {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 24px 14px 20px;
  border: none;
  border-radius: var(--radius-md);
  font: inherit;
  cursor: pointer;
  color: var(--ink);
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    8px 8px 18px var(--sh-dark),
    -8px -8px 18px var(--sh-light),
    inset 1px 1px 1px rgba(255, 255, 255, 0.5);
  transition: transform 0.25s var(--spring), box-shadow 0.25s var(--spring);
}
.variant:hover { transform: translateY(-4px); }
.variant-swatch {
  width: 72px; height: 72px;
  border-radius: 50%;
  box-shadow:
    5px 5px 10px rgba(0, 0, 0, 0.18),
    inset -4px -4px 8px rgba(0, 0, 0, 0.08),
    inset 4px 4px 8px rgba(255, 255, 255, 0.7);
}
.variant-swatch--bone  { background: linear-gradient(145deg, #f4f0e8, #d5cfc2); }
.variant-swatch--slate { background: linear-gradient(145deg, #eef2f6, #ccd2da); }
.variant-swatch--sage  { background: linear-gradient(145deg, #f0f5ee, #ced7c9); }
.variant-swatch--blush { background: linear-gradient(145deg, #f8efea, #dbcfc8); }
.variant-name { font-weight: 800; font-size: 1.05rem; }
.variant-note { font-size: 0.85rem; color: var(--ink-soft); font-weight: 600; }
.variant[aria-checked="true"] {
  background: linear-gradient(145deg, var(--slab-lo), var(--slab-hi));
  box-shadow:
    inset 6px 6px 13px var(--sh-dark),
    inset -6px -6px 13px var(--sh-light);
  transform: none;
}
.variant[aria-checked="true"] .variant-swatch {
  box-shadow:
    0 0 0 3px var(--glow),
    5px 5px 10px rgba(0, 0, 0, 0.18),
    inset -4px -4px 8px rgba(0, 0, 0, 0.08),
    inset 4px 4px 8px rgba(255, 255, 255, 0.7);
}

/* ── Spec sheet ──────────────────────────────────────────────────── */
.spec-sheet {
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 40px);
  background: linear-gradient(145deg, var(--slab-lo), var(--slab-hi));
  box-shadow:
    inset 9px 9px 20px var(--sh-dark),
    inset -9px -9px 20px var(--sh-light);
}
.spec-list { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 6px 40px; }
.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 18px;
  padding: 15px 6px;
  border-bottom: 1px solid color-mix(in srgb, var(--ink-faint) 18%, transparent);
}
.spec-row dt {
  font-size: 0.8rem; font-weight: 800;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-soft);
  white-space: nowrap;
}
.spec-row dd { margin: 0; text-align: right; font-weight: 600; color: var(--ink); }

/* ── Pre-order ───────────────────────────────────────────────────── */
.order-card {
  max-width: 780px;
  border-radius: var(--radius-lg);
  padding: clamp(24px, 3.4vw, 44px);
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    12px 12px 28px var(--sh-dark),
    -12px -12px 28px var(--sh-light),
    inset 1px 1px 1px rgba(255, 255, 255, 0.55);
}
.order-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 26px;
}
.field { display: flex; flex-direction: column; gap: 10px; }
.field > label, .field > #qty-label {
  font-size: 0.8rem; font-weight: 800;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink-soft);
}
.soft-input {
  font: inherit;
  font-weight: 600;
  color: var(--ink);
  padding: 15px 20px;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(145deg, var(--slab-lo), var(--slab-hi));
  box-shadow:
    inset 5px 5px 11px var(--sh-dark),
    inset -5px -5px 11px var(--sh-light);
}
.soft-input::placeholder { color: var(--ink-faint); }
.soft-input:focus { outline: none; }
.soft-input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}
.soft-select-wrap { position: relative; }
.soft-select { width: 100%; appearance: none; cursor: pointer; }
.soft-select-wrap::after {
  content: "▾";
  position: absolute;
  right: 18px; top: 50%;
  transform: translateY(-50%);
  color: var(--ink-soft);
  pointer-events: none;
}

.qty { display: flex; align-items: center; gap: 14px; }
.qty-btn {
  width: 52px; height: 52px;
  border: none;
  border-radius: 50%;
  font: inherit;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--ink);
  cursor: pointer;
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    6px 6px 12px var(--sh-dark),
    -6px -6px 12px var(--sh-light),
    inset 1px 1px 1px rgba(255, 255, 255, 0.5);
  transition: box-shadow 0.18s var(--spring), transform 0.18s var(--spring);
}
.qty-btn:hover { transform: translateY(-2px); }
.qty-btn:active {
  transform: translateY(1px);
  box-shadow:
    inset 4px 4px 9px var(--sh-dark),
    inset -4px -4px 9px var(--sh-light);
}
.qty-value {
  min-width: 2.2ch;
  text-align: center;
  font-size: 1.35rem; font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.form-note { color: #9c3a1e; font-weight: 700; margin-bottom: 16px; }

.order-submit {
  width: 100%;
  padding: 20px;
  border: none;
  border-radius: var(--radius-md);
  font: inherit;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--ink);
  cursor: pointer;
  background: linear-gradient(145deg, var(--slab-hi), var(--slab-lo));
  box-shadow:
    8px 8px 18px var(--sh-dark),
    -8px -8px 18px var(--sh-light),
    inset 1px 1px 1px rgba(255, 255, 255, 0.55);
  transition: box-shadow 0.22s var(--spring), transform 0.22s var(--spring), color 0.22s;
}
.order-submit:hover { transform: translateY(-2px); color: var(--glow-deep); }
.order-submit:active {
  transform: translateY(1px);
  box-shadow:
    inset 6px 6px 12px var(--sh-dark),
    inset -6px -6px 12px var(--sh-light);
}

.order-done {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 24px;
  padding: 20px 24px;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--slab-lo), var(--slab-hi));
  box-shadow:
    inset 6px 6px 13px var(--sh-dark),
    inset -6px -6px 13px var(--sh-light);
  color: var(--ink);
  line-height: 1.55;
}
.order-done-glyph {
  flex: 0 0 auto;
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 50%;
  font-size: 1.3rem;
  color: #fff;
  background: radial-gradient(circle at 35% 30%, #ffd9ae, var(--glow) 55%, var(--glow-deep));
  box-shadow: 0 0 14px var(--glow);
}

/* ── Footer ──────────────────────────────────────────────────────── */
.site-foot {
  max-width: 1180px;
  margin: 60px auto 0;
  padding: 30px clamp(18px, 4vw, 40px) 46px;
  color: var(--ink-soft);
  font-weight: 600;
}
.foot-fine { font-size: 0.86rem; margin-top: 6px; color: var(--ink-faint); }

/* ── Responsive: restack the slab, never shrink it ───────────────── */
@media (max-width: 940px) {
  .panel-grid { grid-template-columns: 1fr; }
  .dial-well { --dial-size: min(74vw, 320px); }
  .dial { --dial-size: min(74vw, 320px); }
  .spec-list { grid-template-columns: 1fr; }
}
@media (min-width: 941px) {
  .dial-well, .dial { --dial-size: clamp(260px, 30vw, 340px); }
}
@media (max-width: 720px) {
  .site-head {
    position: static;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
  }
  .wordmark { align-self: center; }
  .site-nav { justify-content: flex-start; }
  .order-grid { grid-template-columns: 1fr; }
  .preset-row { grid-template-columns: repeat(2, 1fr); }
  .toggle-row { flex-direction: column; }
  .toggle { flex-direction: row; justify-content: space-between; padding: 16px 20px; }
  .panel-strip { flex-wrap: wrap; }
  .panel-brand { width: 100%; margin-left: 0; }
}

/* ── Reduced motion ──────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}