/* ============================================================
   MCM ROBOTICS v2 — Design System
   "Engineering luxury" — void black, electric cobalt, signal cyan
   ============================================================ */

/* ---------- tokens ---------- */
:root {
  --void: #06070b;
  --void-2: #0a0c12;
  --panel: #0e1118;
  --panel-2: #131722;
  --line: rgba(148, 163, 198, 0.10);
  --line-2: rgba(148, 163, 198, 0.18);

  --ink: #f2f5fb;
  --ink-2: #b9c2d8;
  --mute: #7d879e;
  --faint: #525b70;

  --cobalt: #2563eb;
  --cobalt-2: #3b82f6;
  --cyan: #22d3ee;
  --signal: #38bdf8;
  --good: #34d399;
  --warn: #fbbf24;

  --grad-hero: linear-gradient(135deg, #60a5fa 0%, #22d3ee 50%, #818cf8 100%);
  --grad-btn: linear-gradient(135deg, #2563eb, #1d4ed8);
  --glow-cobalt: 0 0 40px rgba(37, 99, 235, 0.35);

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-text: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;

  --container: 1280px;
  --nav-h: 76px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-snap: cubic-bezier(0.83, 0, 0.17, 1);
}

/* ---------- base ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
html.lenis { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto; }

body {
  background: var(--void);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
}

/* subtle engineering grid on the void */
body::before {
  content: "";
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(148,163,198,0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,163,198,0.022) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
  z-index: 0;
}

::selection { background: rgba(34, 211, 238, 0.28); color: #fff; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--void); }
::-webkit-scrollbar-thumb { background: #1d2330; border-radius: 6px; border: 2px solid var(--void); }
::-webkit-scrollbar-thumb:hover { background: #2a3245; }

img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, select, textarea { font: inherit; }

main { position: relative; z-index: 1; }

/* ---------- typography ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 0.96;
  text-wrap: balance;
}
.display-xl { font-size: clamp(3.2rem, 9.5vw, 8.2rem); }
.display-lg { font-size: clamp(2.6rem, 6.5vw, 5.2rem); }
.display-md { font-size: clamp(2rem, 4.5vw, 3.4rem); }
.display-sm { font-size: clamp(1.5rem, 3vw, 2.2rem); }

.grad-text {
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--signal);
}
.eyebrow::before {
  content: "";
  width: 28px; height: 1px;
  background: linear-gradient(90deg, var(--signal), transparent);
}

.lead { font-size: clamp(1.05rem, 1.6vw, 1.3rem); color: var(--ink-2); line-height: 1.7; max-width: 62ch; }
.body-mute { color: var(--mute); }

.mono { font-family: var(--font-mono); }
.mono-stat {
  font-family: var(--font-mono);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

/* ---------- layout ---------- */
.container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
.container-wide { width: min(1520px, calc(100% - 40px)); margin-inline: auto; }

.section { padding-block: clamp(80px, 12vh, 150px); position: relative; }
.section-tight { padding-block: clamp(56px, 8vh, 100px); }

.stack-sm > * + * { margin-top: 12px; }
.stack-md > * + * { margin-top: 24px; }
.stack-lg > * + * { margin-top: 44px; }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 90;
  display: flex; align-items: center;
  transition: background 0.4s var(--ease-out), border 0.4s, backdrop-filter 0.4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(8, 9, 14, 0.78);
  backdrop-filter: blur(20px) saturate(1.4);
  border-bottom-color: var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.nav-logo img { height: 34px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 6px; list-style: none; }
.nav-links a {
  position: relative;
  padding: 9px 16px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-2);
  border-radius: 99px;
  transition: color 0.25s, background 0.25s;
}
.nav-links a:hover { color: var(--ink); background: rgba(148,163,198,0.07); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: "";
  position: absolute; left: 16px; right: 16px; bottom: 3px;
  height: 2px; border-radius: 2px;
  background: var(--grad-hero);
}
.nav-actions { display: flex; align-items: center; gap: 14px; }

.cart-btn {
  position: relative;
  display: inline-flex; align-items: center; gap: 9px;
  padding: 10px 18px;
  border: 1px solid var(--line-2);
  border-radius: 99px;
  font-size: 0.9rem; font-weight: 600;
  color: var(--ink);
  background: rgba(148,163,198,0.05);
  transition: border-color 0.25s, background 0.25s, transform 0.2s;
}
.cart-btn:hover { border-color: rgba(56,189,248,0.5); background: rgba(56,189,248,0.08); }
.cart-count {
  display: inline-grid; place-items: center;
  min-width: 21px; height: 21px;
  padding-inline: 5px;
  background: var(--grad-btn);
  border-radius: 99px;
  font-family: var(--font-mono);
  font-size: 0.7rem; font-weight: 700;
  color: #fff;
  box-shadow: 0 0 14px rgba(37,99,235,0.5);
}

.nav-burger { display: none; flex-direction: column; gap: 5px; padding: 10px; }
.nav-burger span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: 0.3s; }

/* ---------- buttons ---------- */
.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 16px 34px;
  border-radius: 14px;
  font-family: var(--font-display);
  font-size: 0.98rem; font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform 0.25s var(--ease-out), box-shadow 0.3s, background 0.3s, border-color 0.3s;
  will-change: transform;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn svg { width: 18px; height: 18px; flex: none; }

.btn-primary {
  background: var(--grad-btn);
  color: #fff;
  box-shadow: 0 8px 28px rgba(37,99,235,0.32), inset 0 1px 0 rgba(255,255,255,0.16);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(37,99,235,0.48), inset 0 1px 0 rgba(255,255,255,0.16); }

.btn-ghost {
  border: 1px solid var(--line-2);
  color: var(--ink);
  background: rgba(148,163,198,0.05);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { border-color: rgba(56,189,248,0.5); background: rgba(56,189,248,0.07); transform: translateY(-2px); }

.btn-cyan {
  background: linear-gradient(135deg, #0891b2, #06b6d4);
  color: #021019;
  font-weight: 700;
  box-shadow: 0 8px 28px rgba(34,211,238,0.3);
}
.btn-cyan:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(34,211,238,0.45); }

.btn-sm { padding: 11px 22px; border-radius: 11px; font-size: 0.88rem; }
.btn-lg { padding: 19px 44px; font-size: 1.08rem; border-radius: 16px; }
.btn[disabled] { opacity: 0.45; pointer-events: none; }

/* ---------- cards ---------- */
.glass {
  background: linear-gradient(160deg, rgba(19,23,34,0.85), rgba(12,14,20,0.92));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  backdrop-filter: blur(14px);
}

.card-hover {
  transition: transform 0.45s var(--ease-out), border-color 0.35s, box-shadow 0.45s;
}
.card-hover:hover {
  transform: translateY(-6px);
  border-color: rgba(56,189,248,0.32);
  box-shadow: 0 24px 70px rgba(2,6,18,0.7), 0 0 0 1px rgba(56,189,248,0.12), var(--glow-cobalt);
}

.tilt { transform-style: preserve-3d; will-change: transform; }
.tilt-inner { transform: translateZ(34px); }

/* family showcase card */
.family-card {
  position: relative;
  display: block;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  isolation: isolate;
}
.family-card .fc-media { position: absolute; inset: 0; z-index: -1; }
.family-card .fc-media video,
.family-card .fc-media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 1.1s var(--ease-out), opacity 0.5s;
  opacity: 0.55;
}
.family-card:hover .fc-media video,
.family-card:hover .fc-media img { transform: scale(1.05); opacity: 0.75; }
.family-card .fc-scrim {
  position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(180deg, rgba(6,7,11,0.1) 0%, rgba(6,7,11,0.55) 55%, rgba(6,7,11,0.96) 100%);
}
.family-card .fc-body { position: relative; z-index: 1; padding: clamp(24px, 3.4vw, 44px); display: flex; flex-direction: column; justify-content: flex-end; min-height: 480px; }
.family-card .fc-tag {
  position: absolute; top: 24px; left: 24px;
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--signal);
  padding: 7px 14px;
  border: 1px solid rgba(56,189,248,0.3);
  border-radius: 99px;
  background: rgba(6,7,11,0.55);
  backdrop-filter: blur(8px);
}
.family-card .fc-arrow {
  position: absolute; top: 22px; right: 22px;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  background: rgba(6,7,11,0.5);
  backdrop-filter: blur(8px);
  transition: background 0.3s, border-color 0.3s, transform 0.45s var(--ease-out);
}
.family-card:hover .fc-arrow { background: var(--cobalt); border-color: var(--cobalt); transform: rotate(45deg); }
.family-card .fc-arrow svg { width: 18px; height: 18px; }

.price-chip {
  display: inline-flex; align-items: baseline; gap: 7px;
  font-family: var(--font-mono);
}
.price-chip .from { font-size: 0.72rem; color: var(--mute); text-transform: uppercase; letter-spacing: 0.18em; white-space: nowrap; }
.price-chip .amt { font-size: 1.25rem; font-weight: 700; color: var(--ink); }

/* ---------- variant selector ---------- */
.variant-rail { display: grid; gap: 14px; }
.variant-pill {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  width: 100%;
  text-align: left;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(19,23,34,0.55);
  transition: border-color 0.3s, background 0.3s, transform 0.3s var(--ease-out);
}
.variant-pill:hover { border-color: var(--line-2); transform: translateX(4px); }
.variant-pill.on {
  border-color: rgba(56,189,248,0.55);
  background: linear-gradient(135deg, rgba(37,99,235,0.16), rgba(34,211,238,0.07));
  box-shadow: inset 0 0 0 1px rgba(56,189,248,0.2), 0 8px 30px rgba(37,99,235,0.18);
}
.variant-pill .vp-name { font-family: var(--font-display); font-weight: 600; font-size: 1.02rem; }
.variant-pill .vp-sub { font-size: 0.82rem; color: var(--mute); margin-top: 2px; }
.variant-pill .vp-price { font-family: var(--font-mono); font-weight: 700; font-size: 1.02rem; white-space: nowrap; }
.variant-pill.on .vp-price { color: var(--signal); }

/* ---------- spec tables ---------- */
.spec-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.spec-cell { background: var(--panel); padding: 18px 20px; }
.spec-cell .k { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--mute); margin-bottom: 6px; }
.spec-cell .v { font-size: 0.95rem; font-weight: 500; color: var(--ink); line-height: 1.45; }

/* ---------- stats ---------- */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1px; background: var(--line); border-block: 1px solid var(--line); }
.stat-cell { background: var(--void); padding: 38px 28px; text-align: center; }
.stat-cell .n { font-family: var(--font-mono); font-size: clamp(2rem, 3.6vw, 3rem); font-weight: 700; letter-spacing: -0.03em; color: var(--ink); }
.stat-cell .n em { font-style: normal; color: var(--signal); }
.stat-cell .l { font-size: 0.8rem; color: var(--mute); text-transform: uppercase; letter-spacing: 0.2em; margin-top: 8px; }

/* ---------- marquee ---------- */
.marquee { overflow: hidden; white-space: nowrap; border-block: 1px solid var(--line); padding-block: 18px; user-select: none; }
.marquee-track { display: inline-flex; gap: 64px; animation: marquee 38s linear infinite; will-change: transform; }
.marquee-item { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; color: var(--faint); display: inline-flex; align-items: center; gap: 64px; }
.marquee-item::after { content: "//"; color: rgba(56,189,248,0.4); font-family: var(--font-mono); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- cart drawer ---------- */
.drawer-veil {
  position: fixed; inset: 0; z-index: 98;
  background: rgba(3,4,8,0.66);
  backdrop-filter: blur(6px);
}
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 99;
  width: min(460px, 100vw);
  display: flex; flex-direction: column;
  background: linear-gradient(190deg, #10131c, #0a0c12);
  border-left: 1px solid var(--line-2);
  box-shadow: -40px 0 120px rgba(0,0,0,0.6);
}
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 24px 28px; border-bottom: 1px solid var(--line); }
.drawer-head h3 { font-family: var(--font-display); font-size: 1.25rem; }
.drawer-body { flex: 1; overflow-y: auto; padding: 20px 28px; }
.drawer-foot { padding: 22px 28px; border-top: 1px solid var(--line); background: rgba(6,7,11,0.5); }

.cart-line { display: flex; gap: 16px; padding-block: 16px; border-bottom: 1px solid var(--line); }
.cart-line img { width: 72px; height: 72px; object-fit: cover; border-radius: 12px; border: 1px solid var(--line); }
.cart-line .cl-name { font-weight: 600; font-size: 0.93rem; line-height: 1.35; }
.cart-line .cl-variant { font-family: var(--font-mono); font-size: 0.72rem; color: var(--signal); margin-top: 2px; }
.cart-line .cl-price { font-family: var(--font-mono); font-size: 0.9rem; font-weight: 700; margin-top: 6px; }

.qty-step { display: inline-flex; align-items: center; border: 1px solid var(--line-2); border-radius: 9px; overflow: hidden; }
.qty-step button { width: 30px; height: 30px; display: grid; place-items: center; color: var(--mute); transition: 0.2s; font-size: 1rem; }
.qty-step button:hover { color: var(--ink); background: rgba(148,163,198,0.1); }
.qty-step span { min-width: 34px; text-align: center; font-family: var(--font-mono); font-size: 0.85rem; font-weight: 600; }

.sum-row { display: flex; justify-content: space-between; font-size: 0.9rem; padding-block: 5px; color: var(--ink-2); }
.sum-row.total { font-size: 1.05rem; font-weight: 700; color: var(--ink); border-top: 1px solid var(--line-2); margin-top: 8px; padding-top: 13px; }
.sum-row .mono-stat { color: var(--ink); }

/* ---------- forms ---------- */
.field { display: grid; gap: 7px; }
.field label { font-size: 0.8rem; font-weight: 600; color: var(--ink-2); letter-spacing: 0.04em; }
.field label .req { color: var(--cyan); }
.input {
  width: 100%;
  padding: 14px 17px;
  background: rgba(10,12,18,0.7);
  border: 1px solid var(--line-2);
  border-radius: 12px;
  color: var(--ink);
  font-size: 0.95rem;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.input::placeholder { color: var(--faint); }
.input:focus { outline: none; border-color: rgba(56,189,248,0.6); box-shadow: 0 0 0 4px rgba(56,189,248,0.12); }
textarea.input { resize: vertical; min-height: 96px; }

/* ---------- alerts / toast ---------- */
.alert { padding: 14px 18px; border-radius: 12px; font-size: 0.9rem; border: 1px solid; }
.alert-error { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.3); color: #fca5a5; }
.alert-ok { background: rgba(52,211,153,0.08); border-color: rgba(52,211,153,0.3); color: #6ee7b7; }

.toast-zone { position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%); z-index: 120; display: grid; gap: 10px; }
.toast {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 22px;
  background: rgba(16,19,28,0.92);
  border: 1px solid rgba(56,189,248,0.35);
  border-radius: 14px;
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 50px rgba(0,0,0,0.55), 0 0 30px rgba(37,99,235,0.18);
  font-size: 0.9rem; font-weight: 500;
  animation: toast-in 0.45s var(--ease-out);
}
.toast svg { width: 18px; height: 18px; color: var(--good); flex: none; }
@keyframes toast-in { from { opacity: 0; transform: translateY(16px) scale(0.96); } }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); background: linear-gradient(180deg, transparent, rgba(10,12,18,0.8)); padding: 70px 0 36px; margin-top: 40px; position: relative; z-index: 1; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 48px; margin-bottom: 52px; }
.footer h5, .footer .foot-label { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--mute); margin-bottom: 18px; }
.footer-links { list-style: none; display: grid; gap: 10px; }
.footer-links a { color: var(--ink-2); font-size: 0.92rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--signal); }
.footer-base { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-top: 26px; border-top: 1px solid var(--line); font-size: 0.8rem; color: var(--faint); flex-wrap: wrap; }

/* ---------- hero stage (cinematic fleet showcase) ---------- */
.hero-stage { position: relative; min-height: 100svh; display: flex; align-items: center; overflow: hidden; background: var(--void); }
.hero-canvas { position: absolute; inset: 0; z-index: 0; }
.hero-canvas canvas { display: block; width: 100%; height: 100%; }

.hero-slides { position: absolute; inset: 0; z-index: 0; }
.hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.1s var(--ease-out); }
.hero-slide.live { opacity: 1; }
.hero-slide video {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
  transform: scale(1.04);
  transition: transform 8s linear;
}
.hero-slide.live video { transform: scale(1.0); }

.hero-vignette {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(6,7,11,0.88) 0%, rgba(6,7,11,0.55) 38%, rgba(6,7,11,0.12) 70%),
    radial-gradient(ellipse 80% 60% at 50% 115%, rgba(37,99,235,0.18), transparent 60%),
    linear-gradient(180deg, rgba(6,7,11,0.55) 0%, transparent 26%, transparent 60%, var(--void) 100%);
}
.hero-content { position: relative; z-index: 2; width: 100%; }

/* cycling robot name */
.hero-name { position: relative; min-height: 1.05em; }
.hero-name .hn {
  position: absolute; inset: 0;
  opacity: 0; transform: translateY(26px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
  pointer-events: none;
  white-space: nowrap;
}
.hero-name .hn.live { opacity: 1; transform: none; pointer-events: auto; position: relative; }

.hero-meta { min-height: 64px; }
.hero-meta .hm { display: none; }
.hero-meta .hm.live { display: block; animation: hm-in 0.7s var(--ease-out); }
@keyframes hm-in { from { opacity: 0; transform: translateY(14px); } }

/* slide rail */
.slide-rail { display: flex; gap: 26px; align-items: center; }
.slide-tab {
  display: grid; gap: 8px;
  text-align: left;
  min-width: 96px;
  padding-top: 4px;
  opacity: 0.45;
  transition: opacity 0.3s;
}
.slide-tab:hover { opacity: 0.8; }
.slide-tab.live { opacity: 1; }
.slide-tab .st-idx { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.3em; color: var(--signal); }
.slide-tab .st-name { font-family: var(--font-display); font-size: 0.95rem; font-weight: 600; color: var(--ink); white-space: nowrap; }
.slide-tab .st-bar { height: 2px; background: rgba(148,163,198,0.18); border-radius: 2px; overflow: hidden; }
.slide-tab .st-bar i { display: block; height: 100%; width: 0; background: var(--grad-hero); border-radius: 2px; }
.slide-tab.live .st-bar i { animation: st-fill var(--slide-ms, 7000ms) linear forwards; }
@keyframes st-fill { to { width: 100%; } }

.scroll-cue {
  position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%); z-index: 2;
  display: grid; justify-items: center; gap: 9px;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.4em; text-transform: uppercase; color: var(--mute);
}
.scroll-cue .line { width: 1px; height: 44px; background: linear-gradient(180deg, var(--signal), transparent); animation: cue 2.1s var(--ease-out) infinite; transform-origin: top; }
@keyframes cue { 0% { transform: scaleY(0); opacity: 0; } 35% { transform: scaleY(1); opacity: 1; } 100% { transform: scaleY(1) translateY(18px); opacity: 0; } }

/* ---------- reveal (GSAP hooks; visible by default if JS fails) ---------- */
[data-reveal] { will-change: transform, opacity; }
.gsap-ready [data-reveal] { opacity: 0; transform: translateY(36px); }
.gsap-ready [data-reveal="left"] { transform: translateX(-44px); }
.gsap-ready [data-reveal="right"] { transform: translateX(44px); }
.gsap-ready [data-reveal="scale"] { transform: scale(0.93); }

/* ---------- video panel ---------- */
.video-panel { position: relative; border-radius: var(--r-xl); overflow: hidden; border: 1px solid var(--line-2); box-shadow: 0 40px 120px rgba(2,4,12,0.8); }
.video-panel video { width: 100%; height: 100%; object-fit: cover; }
.video-panel .vp-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(6,7,11,0.82)); pointer-events: none; }
.video-panel .vp-label { position: absolute; left: 26px; bottom: 22px; }

/* ---------- breadcrumb ---------- */
.crumbs { display: flex; align-items: center; gap: 10px; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--faint); }
.crumbs a { color: var(--mute); transition: color 0.2s; }
.crumbs a:hover { color: var(--signal); }
.crumbs .sep { color: var(--faint); }

/* ---------- accessory card ---------- */
.acc-card { display: flex; flex-direction: column; overflow: hidden; }
.acc-card .ac-media { aspect-ratio: 4/3; background: radial-gradient(circle at 50% 40%, rgba(37,99,235,0.12), transparent 70%), var(--panel-2); display: grid; place-items: center; border-bottom: 1px solid var(--line); overflow: hidden; }
.acc-card .ac-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s var(--ease-out); }
.acc-card:hover .ac-media img { transform: scale(1.06); }
.acc-card .ac-body { padding: 22px 24px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.acc-card .ac-name { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; line-height: 1.3; }
.acc-card .ac-desc { font-size: 0.85rem; color: var(--mute); line-height: 1.55; flex: 1; }
.acc-card .ac-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 6px; }

/* ---------- order summary ---------- */
.order-panel { position: sticky; top: calc(var(--nav-h) + 24px); }

/* ---------- badge — HUD corner-bracket frame, not a pill ---------- */
.chip {
  position: relative;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 9px 18px;
  font-family: var(--font-mono);
  font-size: 0.68rem; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink-2);
  background: linear-gradient(90deg, rgba(148,163,198,0.06), transparent 60%);
}
.chip::before, .chip::after {
  content: "";
  position: absolute; top: 0; bottom: 0;
  width: 9px;
  border: 1px solid var(--line-2);
  transition: border-color 0.3s;
}
.chip::before { left: 0; border-right: 0; }
.chip::after  { right: 0; border-left: 0; }
.chip .dot { width: 5px; height: 5px; background: var(--good); box-shadow: 0 0 9px var(--good); animation: dot-pulse 2.4s ease-in-out infinite; }
@keyframes dot-pulse { 50% { opacity: 0.45; } }
.chip-cyan { color: var(--cyan); background: linear-gradient(90deg, rgba(34,211,238,0.07), transparent 60%); }
.chip-cyan::before, .chip-cyan::after { border-color: rgba(34,211,238,0.45); }

/* ---------- step ribbon (how ordering works) ---------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; counter-reset: step; }
.step-card { position: relative; padding: 30px 26px 26px; counter-increment: step; }
.step-card::before {
  content: "0" counter(step);
  font-family: var(--font-mono);
  font-size: 3rem; font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(56,189,248,0.4);
  line-height: 1;
  display: block;
  margin-bottom: 16px;
}
.step-card h4, .step-card h3 { font-family: var(--font-display); font-size: 1.1rem; margin-bottom: 8px; }
.step-card p { font-size: 0.88rem; color: var(--mute); line-height: 1.6; }

/* ---------- pointer light — ambient glow that reveals the engineering grid ---------- */
#pointer-glow {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity 0.6s ease;
  background:
    radial-gradient(560px circle at var(--mx, 50%) var(--my, 40%),
      rgba(56, 189, 248, 0.055), transparent 62%),
    radial-gradient(220px circle at var(--mx, 50%) var(--my, 40%),
      rgba(37, 99, 235, 0.07), transparent 65%);
}
#pointer-glow.on { opacity: 1; }
/* brightened grid lines inside the light pool */
#pointer-glow::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(96, 165, 250, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96, 165, 250, 0.09) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(300px circle at var(--mx, 50%) var(--my, 40%), #000 0%, transparent 70%);
  mask-image: radial-gradient(300px circle at var(--mx, 50%) var(--my, 40%), #000 0%, transparent 70%);
}
@media (hover: none), (pointer: coarse), (prefers-reduced-motion: reduce) {
  #pointer-glow { display: none; }
}

/* magnetic buttons — transform applied by JS, eased release */
.btn.magnet-release { transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1); }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .family-card .fc-body { min-height: 380px; }

  /* hero breathing room below the fixed nav + no bottom collisions */
  .hero-stage { padding-top: calc(var(--nav-h) + 18px); }
  .hero-content { padding-block: 28px 96px; }
  .scroll-cue { display: none; }                /* collides with the slide rail on small screens */
  .slide-rail { gap: 16px; margin-top: 40px !important; overflow-x: auto; padding-bottom: 6px; scrollbar-width: none; }
  .slide-rail::-webkit-scrollbar { display: none; }
  .slide-tab { min-width: 72px; flex: none; }
}
@media (max-width: 640px) {
  .container { width: calc(100% - 32px); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .btn { padding: 14px 26px; }

  /* compact the distributor chip so it never kisses the viewport edge */
  .chip { font-size: 0.56rem; letter-spacing: 0.14em; padding: 8px 12px; gap: 7px; }

  /* price + config chips: clean wrap, no overlap */
  .price-chip { flex-wrap: wrap; row-gap: 2px; }
  .price-chip .amt { font-size: 1.15rem !important; }
  .hero-meta .hm > div { row-gap: 10px !important; }
}

/* mobile nav sheet */
.mobile-sheet {
  position: fixed; inset: 0; z-index: 95;
  background: rgba(6,7,11,0.97);
  backdrop-filter: blur(20px);
  display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 8px;
}
.mobile-sheet a { font-family: var(--font-display); font-size: 2rem; font-weight: 600; padding: 12px 24px; color: var(--ink-2); transition: color 0.2s; }
.mobile-sheet a:hover { color: var(--signal); }

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .gsap-ready [data-reveal] { opacity: 1 !important; transform: none !important; }
}

/* ---------- comparison table (fit-in-view, no horizontal scroll) ---------- */
.cmp-table .cmp-add {
  display: inline-block;
  margin-top: 8px;
  padding: 5px 12px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  transition: border-color 0.25s, background 0.25s, color 0.25s;
  white-space: nowrap;
}
.cmp-table .cmp-add:hover { border-color: rgba(56,189,248,0.6); background: rgba(56,189,248,0.1); color: var(--ink); }
@media (max-width: 900px) {
  /* small screens: hide the label column header text crunch gracefully */
  .cmp-table .cmp-label { width: 26% !important; }
}

/* ---------- screen-reader-only (SEO entity leads inside display headings) ---------- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- FAQ items ---------- */
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary { user-select: none; transition: color 0.2s; }
.faq-item summary:hover { color: var(--signal); }
.faq-item .faq-mark { transition: transform 0.3s var(--ease-out); }
.faq-item[open] .faq-mark { transform: rotate(45deg); }
.faq-item[open] { border-color: rgba(56,189,248,0.25); }

/* ---------- article prose ---------- */
.prose { color: var(--ink-2); font-size: 1.04rem; line-height: 1.85; }
.prose > * + * { margin-top: 1.25em; }
.prose h2 { font-family: var(--font-display); font-weight: 700; font-size: 1.65rem; color: var(--ink); letter-spacing: -0.02em; line-height: 1.25; margin-top: 2em; }
.prose h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.25rem; color: var(--ink); margin-top: 1.7em; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose a { color: var(--signal); text-decoration: underline; text-decoration-color: rgba(56,189,248,0.35); text-underline-offset: 3px; transition: text-decoration-color 0.2s; }
.prose a:hover { text-decoration-color: var(--signal); }
.prose ul, .prose ol { padding-left: 1.4em; display: grid; gap: 0.55em; }
.prose li::marker { color: var(--signal); }
.prose blockquote { border-left: 2px solid var(--signal); padding: 0.35em 0 0.35em 1.3em; color: var(--ink); font-family: var(--font-display); font-size: 1.15rem; }
.prose img { border-radius: var(--r-md); border: 1px solid var(--line); }
.prose code { font-family: var(--font-mono); font-size: 0.88em; background: rgba(148,163,198,0.1); padding: 0.15em 0.45em; border-radius: 6px; color: var(--cyan); }
.prose pre { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-md); padding: 20px 24px; overflow-x: auto; }
.prose pre code { background: none; padding: 0; }
.prose table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.prose table th { text-align: left; color: var(--ink); border-bottom: 1px solid var(--line-2); padding: 10px 12px; font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.14em; }
.prose table td { border-bottom: 1px solid var(--line); padding: 10px 12px; }
.prose hr { border: 0; border-top: 1px solid var(--line); }

/* ---------- alpine cloak ---------- */
[x-cloak] { display: none !important; }