/* ===========================================
   BP-3D01 — 3D Product Showcase (FORMA ONE)
   style.css
   =========================================== */

/* ─── TOKENS ─── */
:root {
  --bg:          #0a0a0b;
  --bg-2:        #111114;
  --bg-card:     #16161a;
  --bg-glass:    rgba(22, 22, 26, 0.7);
  --border:      rgba(255,255,255,0.08);
  --border-light:rgba(255,255,255,0.13);
  --accent:      #e8ff5a;
  --accent-dim:  rgba(232,255,90,0.15);
  --accent-2:    #7b61ff;
  --white:       #f4f4f5;
  --text:        rgba(244,244,245,0.78);
  --text-muted:  rgba(244,244,245,0.42);
  --radius:      10px;
  --radius-lg:   18px;
  --radius-xl:   28px;
  --nav-h:       72px;
  --transition:  0.32s cubic-bezier(0.4,0,0.2,1);
}

/* ─── RESET ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Space Grotesk', sans-serif;
  background: var(--bg);
  color: var(--white);
  overflow-x: hidden;
  cursor: none;
}
a { color: inherit; text-decoration: none; }
button { background: none; border: none; cursor: none; }
input, select, textarea { font-family: inherit; }
canvas { display: block; }
canvas.no-webgl { display: none; }       /* WebGL unavailable — the page still reads fine without the 3D */

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg-2); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 2px; }

/* ─── CURSOR ─── */
.cursor {
  position: fixed;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: opacity 0.2s, width 0.2s, height 0.2s;
  mix-blend-mode: difference;
}
.cursor-ring {
  position: fixed;
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1.5px solid rgba(232,255,90,0.5);
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: all 0.12s ease;
}
body.cursor-hover .cursor      { width: 14px; height: 14px; }
body.cursor-hover .cursor-ring { width: 52px; height: 52px; border-color: var(--accent); }
body.cursor-drag  .cursor-ring { border-color: var(--accent-2); }

/* ─── SCROLL BAR ─── */
.scroll-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  background: var(--accent);
  z-index: 1000;
  width: 0%;
  transition: width 0.1s linear;
}

/* ─── TYPOGRAPHY ─── */
.section__tag {
  display: inline-block;
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.1rem;
}
.section__heading {
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--white);
}
.section__heading em { font-style: italic; font-weight: 300; color: var(--text); }
.section-head { text-align: center; margin-bottom: 4rem; }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Space Mono', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  padding: 0.9rem 2rem;
  border-radius: 100px;
  font-weight: 700;
  transition: var(--transition);
  cursor: none;
  white-space: nowrap;
}
.btn--primary {
  background: var(--accent);
  color: #000;
}
.btn--primary:hover { background: #fff; transform: translateY(-2px); box-shadow: 0 8px 30px rgba(232,255,90,0.3); }
.btn--ghost {
  background: transparent;
  color: var(--white);
  border: 1.5px solid var(--border-light);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}
.btn--outline:hover { background: var(--accent); color: #000; }
.btn--nav {
  display: inline-flex;
  align-items: center;
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  padding: 0.6rem 1.4rem;
  border-radius: 100px;
  background: var(--accent);
  color: #000;
  font-weight: 700;
  transition: var(--transition);
  cursor: none;
}
.btn--nav:hover { background: #fff; }
.btn--lg { padding: 1.1rem 2.6rem; font-size: 0.88rem; }
.btn--full { width: 100%; justify-content: center; }

/* ─── NAV ─── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  z-index: 900;
  transition: background 0.4s, backdrop-filter 0.4s;
}
.nav.scrolled {
  background: rgba(10,10,11,0.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}
.nav__logo {
  display: flex;
  align-items: baseline;
  gap: 0.1rem;
}
.nav__logo-mark {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  font-family: 'Space Mono', monospace;
}
.nav__logo-text {
  font-family: 'Space Mono', monospace;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--white);
}
.nav__links {
  display: flex;
  gap: 2.5rem;
}
.nav__link {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  transition: color 0.2s;
  font-family: 'Space Mono', monospace;
}
.nav__link:hover { color: var(--accent); }

/* ─── CONTAINER ─── */
.container { width: 90%; max-width: 1280px; margin: 0 auto; }
.section { padding: 8rem 0; }

/* ─── SCROLL REVEAL CLASSES ─── */
.reveal-fade  { opacity: 0; }
.reveal-up    { opacity: 0; transform: translateY(50px); }
.reveal-left  { opacity: 0; transform: translateX(-50px); }
.reveal-right { opacity: 0; transform: translateX(50px); }

/* ─── HERO ─── */
.hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  overflow: hidden;
  display: flex;
  align-items: center;
}
.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  touch-action: pan-y;          /* horizontal drags rotate the model, vertical drags still scroll */
  opacity: 0;
  transition: opacity 0.9s ease;
}
.hero__canvas.is-ready { opacity: 1; }
.hero__content {
  position: relative;
  z-index: 10;
  padding: 0 8%;
  max-width: 600px;
}
.hero__eyebrow {
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.2rem;
  opacity: 0;
}
.hero__title {
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.4rem;
  opacity: 0;
}
.hero__title em { font-style: italic; font-weight: 300; color: var(--accent); }
.hero__sub {
  font-size: 1rem;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  opacity: 0;
  max-width: 460px;
}
.hero__cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
}

/* Floating spec badges */
.hero__badge {
  position: absolute;
  z-index: 11;
  background: var(--bg-glass);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 1rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  opacity: 0;
}
.hero__badge--1 { left: 41%; top: 28%; }
.hero__badge--2 { left: 57%; bottom: 16%; }
.hero__badge--3 { right: 5%;  top: 33%; }
.hero__badge-val {
  font-family: 'Space Mono', monospace;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.hero__badge-label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Drag hint */
.drag-hint {
  position: absolute;
  bottom: 7rem;
  right: 8%;
  z-index: 11;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  opacity: 0;
}
.drag-hint__icon {
  font-size: 1.1rem;
  animation: spin 3s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Scroll cue */
.hero__scroll-cue {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 11;
  opacity: 0;
}
.hero__scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: lineDown 1.8s ease-in-out infinite;
}
@keyframes lineDown {
  0%,100% { transform: scaleY(0); transform-origin: top; opacity: 0; }
  50% { transform: scaleY(1); opacity: 1; }
}
.hero__scroll-txt {
  font-family: 'Space Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ─── MARQUEE STRIP ─── */
.marquee-strip {
  background: var(--accent);
  overflow: hidden;
  padding: 0.8rem 0;
}
.marquee-strip__track {
  display: flex;
  gap: 3rem;
  white-space: nowrap;
  animation: marquee 20s linear infinite;
}
.marquee-strip__track span {
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #000;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ─── FEATURES ─── */
.features { background: var(--bg); }
.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5px;
  background: var(--border);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.feature-card {
  background: var(--bg);
  padding: 2.5rem 2rem;
  transition: background var(--transition);
}
.feature-card:hover { background: var(--bg-card); }
.feature-card__icon-wrap {
  margin-bottom: 1.5rem;
}
.feature-card__icon {
  width: 44px; height: 44px;
  color: var(--accent);
}
.feature-card__title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.7rem;
  color: var(--white);
}
.feature-card__body {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ─── MATERIALS ─── */
.materials { background: var(--bg-2); }
.materials__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}
.materials__visual {
  position: relative;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.materials__canvas {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-xl);
}
.materials__ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--border);
  pointer-events: none;
}
.materials__ring--1 {
  width: 85%; height: 85%;
  animation: pulse-ring 4s ease-in-out infinite;
}
.materials__ring--2 {
  width: 110%; height: 110%;
  animation: pulse-ring 4s ease-in-out infinite 2s;
}
@keyframes pulse-ring {
  0%,100% { opacity: 0.2; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(1.02); }
}
.materials__text { }
.materials__body {
  color: var(--text);
  line-height: 1.8;
  margin-top: 1.2rem;
  margin-bottom: 2.5rem;
  font-size: 0.95rem;
}
.materials__list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.material-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.material-item__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 0.35rem;
}
.material-item strong {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.1rem;
}
.material-item span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ─── SPECS ─── */
.specs .section-head { margin-bottom: 3.5rem; }
.specs__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.specs__col:first-child { border-right: 1px solid var(--border); }
.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 2rem;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}
.spec-row:last-child { border-bottom: none; }
.spec-row:hover { background: var(--bg-card); }
.spec-row__label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}
.spec-row__val {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--white);
}

/* ─── VARIANTS ─── */
.variants__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.variant-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
.variant-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}
.variant-card__swatch {
  height: 160px;
  background: var(--swatch);
  position: relative;
}
.variant-card__swatch::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.06) 0%, transparent 60%);
}
.variant-card__info {
  padding: 1.5rem;
}
.variant-card__name {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.variant-card__sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.variant-card__link {
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  transition: letter-spacing 0.2s;
}
.variant-card__link:hover { letter-spacing: 0.15em; }

/* ─── FINAL CTA ─── */
.cta-final {
  position: relative;
  padding: 9rem 0;
  text-align: center;
  overflow: hidden;
  background: var(--bg);
}
.cta-final__canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}
.cta-final__content { position: relative; z-index: 2; }
.cta-final__tag {
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
.cta-final__heading {
  font-size: clamp(2.2rem, 4.5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 3rem;
}
.cta-final__heading em { font-style: italic; font-weight: 300; color: var(--text); }
.cta-final__btns {
  display: flex;
  gap: 1.2rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ─── FOOTER ─── */
.footer { background: var(--bg-2); border-top: 1px solid var(--border); padding: 4rem 0 2rem; }
.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}
.footer__logo {
  display: flex;
  align-items: baseline;
  gap: 0.1rem;
  margin-bottom: 0.8rem;
}
.footer__tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
}
.footer__nav, .footer__contact {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.footer__link {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer__link:hover { color: var(--accent); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: 'Space Mono', monospace;
}

/* ═══════════════════════════════════════════
   VIEWER PAGE
   ═══════════════════════════════════════════ */

.viewer-page {
  overflow: hidden;
  height: 100dvh;
}

/* ── Viewer Nav ── */
.viewer-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  z-index: 900;
  background: rgba(10,10,11,0.85);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}
.viewer-nav__back {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Space Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  transition: color 0.2s;
}
.viewer-nav__back:hover { color: var(--accent); }
.viewer-nav__brand {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}
.viewer-nav__product {
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-left: 0.5rem;
}
.viewer-nav__actions { display: flex; gap: 0.5rem; }
.viewer-icon-btn {
  width: 36px; height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.viewer-icon-btn:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-dim); }

/* ── Viewer Layout ── */
.viewer-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  height: 100dvh;
  padding-top: var(--nav-h);
}
.viewer-stage {
  position: relative;
  background: var(--bg);
  overflow: hidden;
  touch-action: none;           /* drag = orbit, pinch = zoom */
}
#viewerCanvas {
  width: 100%; height: 100%;
}

/* Loader */
.viewer-loader {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  background: var(--bg);
  transition: opacity 0.5s;
  z-index: 10;
}
.viewer-loader.hidden { opacity: 0; pointer-events: none; }
.viewer-loader__text {
  font-family: 'Space Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

/* Hotspots */
.hotspot {
  position: absolute;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s;
}
.hotspot.visible { opacity: 1; }
.hotspot__dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(232,255,90,0.2);
  animation: hotspot-pulse 2s ease-in-out infinite;
  cursor: none;
}
@keyframes hotspot-pulse {
  0%,100% { box-shadow: 0 0 0 4px rgba(232,255,90,0.2); }
  50%      { box-shadow: 0 0 0 10px rgba(232,255,90,0.05); }
}
.hotspot__label {
  position: absolute;
  top: -6px;
  background: var(--bg-glass);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  padding: 0.6rem 0.9rem;
  font-size: 0.78rem;
  line-height: 1.4;
  white-space: nowrap;
  color: var(--white);
}
.hotspot__label em { font-style: normal; color: var(--text-muted); font-size: 0.7rem; display: block; }
.hotspot__label--right { left: 20px; }
.hotspot__label--left  { right: 20px; }
.hotspot__label--center { left: 50%; transform: translateX(-50%); top: -56px; }

/* Viewer hint */
.viewer-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  background: rgba(10,10,11,0.6);
  backdrop-filter: blur(8px);
  padding: 0.5rem 1rem;
  border-radius: 100px;
  border: 1px solid var(--border);
  transition: opacity 0.5s;
}
.viewer-hint.hidden { opacity: 0; }
.viewer-hint__icon { animation: spin 3s linear infinite; }

/* ── Side Panel ── */
.viewer-panel {
  background: var(--bg-2);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.viewer-panel__head { }
.viewer-panel__tag {
  font-family: 'Space Mono', monospace;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.4rem;
}
.viewer-panel__title {
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.4rem;
}
.viewer-panel__price {
  font-family: 'Space Mono', monospace;
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Viewer sections */
.viewer-section { }
.viewer-section__label {
  font-family: 'Space Mono', monospace;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
}

/* Colour grid */
.colour-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
.colour-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.8rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: border-color 0.2s, background 0.2s;
  font-size: 0.8rem;
  color: var(--text);
  cursor: none;
}
.colour-btn:hover   { border-color: var(--border-light); background: var(--bg-card); }
.colour-btn.active  { border-color: var(--accent); background: var(--accent-dim); color: var(--white); }
.colour-btn__dot {
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.15);
  flex-shrink: 0;
}
.colour-btn__name { font-size: 0.78rem; }

/* View presets */
.view-presets {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.4rem;
}
.preset-btn {
  padding: 0.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-family: 'Space Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  transition: all 0.2s;
  cursor: none;
  text-align: center;
}
.preset-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }
.preset-btn.active { background: var(--accent); border-color: var(--accent); color: #000; }

/* Toggle switches */
.toggle-list { display: flex; flex-direction: column; gap: 0.7rem; }
.toggle-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: none;
}
.toggle-item__label { font-size: 0.82rem; color: var(--text); }
.toggle-switch { position: relative; display: inline-block; width: 36px; height: 20px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-switch__track {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 100px;
  transition: background 0.2s;
  cursor: none;
}
.toggle-switch__track::before {
  content: '';
  position: absolute;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--text-muted);
  left: 3px; top: 3px;
  transition: transform 0.2s, background 0.2s;
}
.toggle-switch input:checked + .toggle-switch__track { background: var(--accent-dim); border: 1px solid var(--accent); }
.toggle-switch input:checked + .toggle-switch__track::before { transform: translateX(16px); background: var(--accent); }

/* Zoom control */
.zoom-control {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.zoom-btn {
  width: 28px; height: 28px;
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 1.1rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
  cursor: none;
  font-family: 'Space Mono', monospace;
}
.zoom-btn:hover { border-color: var(--accent); color: var(--accent); }
.zoom-slider {
  flex: 1;
  appearance: none;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}
.zoom-slider::-webkit-slider-thumb {
  appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: none;
  border: 2px solid var(--bg-2);
}

/* Reset btn */
.reset-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  transition: all 0.2s;
  cursor: none;
}
.reset-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

/* Divider */
.viewer-divider { height: 1px; background: var(--border); }

/* Mini specs */
.mini-specs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}
.mini-spec {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.7rem 0.5rem;
  text-align: center;
}
.mini-spec__val {
  display: block;
  font-family: 'Space Mono', monospace;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.3rem;
}
.mini-spec__key {
  display: block;
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Panel CTA */
.viewer-panel__cta {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: auto;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--accent);
  color: #000;
  font-family: 'Space Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  padding: 0.7rem 1.5rem;
  border-radius: 100px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
  z-index: 9000;
  white-space: nowrap;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ─── RESPONSIVE ─── */
@media (max-width: 1100px) {
  .materials__inner { grid-template-columns: 1fr; gap: 3rem; }
  .variants__grid   { grid-template-columns: 1fr 1fr; }
  .specs__grid      { grid-template-columns: 1fr; }
  .specs__col:first-child { border-right: none; border-bottom: 1px solid var(--border); }
  .viewer-layout { grid-template-columns: 1fr; grid-template-rows: 1fr auto; }
  .viewer-panel { max-height: 45dvh; flex-direction: row; flex-wrap: wrap; }
  .viewer-layout { overflow-y: auto; }

  /* Stacked hero: the 3D model gets its own band at the top, copy sits underneath */
  .hero {
    height: auto;
    min-height: 100vh;
    min-height: 100svh;
    align-items: flex-start;
    padding: calc(var(--nav-h) + min(86vw, 52svh) + 1.8rem) 0 6.5rem;
  }
  .hero__content { padding: 0 6%; max-width: 100%; }
  .hero__badge  { display: none; }
  .drag-hint { top: calc(var(--nav-h) + min(86vw, 52svh) - 0.2rem); bottom: auto; left: 50%; right: auto; transform: translateX(-50%); }
}
@media (max-width: 768px) {
  .nav__links { display: none; }
  .features__grid { grid-template-columns: 1fr; }
  .variants__grid { grid-template-columns: 1fr; }
  .footer__inner  { grid-template-columns: 1fr; gap: 2rem; }
  .footer__bottom { flex-direction: column; gap: 0.5rem; }
  .viewer-nav__actions { display: none; }
  .mini-specs { grid-template-columns: repeat(2, 1fr); }
  .colour-grid { grid-template-columns: repeat(4, 1fr); }
  .view-presets { grid-template-columns: repeat(2, 1fr); }
}