/* ============================================================
   AXIS One — fictional flagship launch page (portfolio demo)
   Vanilla CSS. Scroll progress arrives as --p (0→1) per section,
   set by app.js via rAF. Defaults are chosen so that with no JS
   (or reduced motion) every section renders in its final,
   fully-readable state.
   ============================================================ */

/* ---------- tokens ---------- */
:root {
  --ink: #f4f6fa;
  --ink-dim: #a7adba;
  --ink-faint: #6b7280;
  --bg: #050507;
  --bg-raise: #0b0c10;
  --hairline: rgba(255, 255, 255, 0.08);
  --accent-grad: linear-gradient(100deg, #dfe7f2 0%, #8fa3c2 45%, #eef2f9 100%);
  --accent: #9db4d8;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", monospace;
  --pw: min(300px, 60vw);
  --ease-out: cubic-bezier(0.22, 0.7, 0.25, 1);
}

/* colorway custom properties — registered so they cross-fade */
@property --mc1 { syntax: "<color>"; inherits: true; initial-value: #e8edf4; }
@property --mc2 { syntax: "<color>"; inherits: true; initial-value: #4c5563; }
@property --mc3 { syntax: "<color>"; inherits: true; initial-value: #a9b4c4; }
@property --bc1 { syntax: "<color>"; inherits: true; initial-value: #3a4150; }
@property --bc2 { syntax: "<color>"; inherits: true; initial-value: #22262e; }
@property --isl { syntax: "<color>"; inherits: true; initial-value: #1a1e26; }
@property --lgc { syntax: "<color>"; inherits: true; initial-value: #c8d2e0; }

body[data-tone="titanium"] {
  --mc1: #e8edf4; --mc2: #4c5563; --mc3: #a9b4c4;
  --bc1: #3a4150; --bc2: #22262e; --isl: #1a1e26; --lgc: #c8d2e0;
}
body[data-tone="midnight"] {
  --mc1: #4a505c; --mc2: #101218; --mc3: #2b303a;
  --bc1: #171a21; --bc2: #0a0b0f; --isl: #05060a; --lgc: #5d6675;
}
body[data-tone="bone"] {
  --mc1: #f6f2e8; --mc2: #a49c8a; --mc3: #d8d1c1;
  --bc1: #ddd6c8; --bc2: #b9b1a0; --isl: #8f8877; --lgc: #4a463c;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
html, body { overflow-x: clip; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: --mc1 0.6s, --mc2 0.6s, --mc3 0.6s, --bc1 0.6s, --bc2 0.6s, --isl 0.6s, --lgc 0.6s;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute; left: 1rem; top: -3rem; z-index: 100;
  background: var(--ink); color: var(--bg);
  padding: 0.5rem 1rem; border-radius: 999px;
  font-weight: 600; text-decoration: none;
  transition: top 0.2s;
}
.skip-link:focus { top: 1rem; }

/* ---------- shared type ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.1rem;
}
.metal-text {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.chapter-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 8.5vw, 3rem);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin-bottom: 1.4rem;
}
.chapter-lede {
  color: var(--ink-dim);
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  max-width: 34em;
  margin-bottom: 2.2rem;
}
.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  text-decoration: none;
  border-radius: 999px;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s, background-color 0.25s;
}
.btn-primary {
  background: var(--ink);
  color: var(--bg);
  padding: 0.9rem 2.2rem;
  font-size: 1rem;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(180, 200, 235, 0.25); }
.btn-small {
  border: 1px solid var(--hairline);
  color: var(--ink);
  padding: 0.45rem 1.2rem;
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.04);
}
.btn-small:hover { background: rgba(255, 255, 255, 0.12); }
.btn-large { padding: 1.1rem 3rem; font-size: 1.1rem; }

/* ---------- header ---------- */
.site-head {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1.2rem, 4vw, 3rem);
  background: rgba(5, 5, 7, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--hairline);
}
.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.06em;
  text-decoration: none;
}
.brand-dot { color: var(--accent); }
.head-nav { display: none; gap: clamp(1rem, 3vw, 2.2rem); }
.head-nav a {
  font-size: 0.85rem;
  color: var(--ink-dim);
  text-decoration: none;
  transition: color 0.2s;
}
.head-nav a:hover { color: var(--ink); }

/* ============================================================
   THE PHONE (pure CSS)
   ============================================================ */
.phone-slot {
  width: var(--pw);
  height: calc(var(--pw) * 2.06);
  perspective: 1600px;
  position: relative;
}
.phone3d {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  will-change: transform;
}
.face {
  position: absolute;
  inset: 0;
  border-radius: calc(var(--pw) * 0.155);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

/* metallic rim on both faces */
.face-front, .face-back {
  background: linear-gradient(155deg, var(--mc1) 0%, var(--mc3) 16%, var(--mc2) 48%, var(--mc3) 80%, var(--mc1) 100%);
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.65);
}
.face-front { transform: translateZ(7px); }
.face-back  { transform: rotateY(180deg) translateZ(7px); }
.face-edge {
  background: linear-gradient(90deg, var(--mc2), var(--mc3), var(--mc2));
  transform: translateZ(0) scale(0.995);
  backface-visibility: visible;
}

/* front: bezel + screen */
.face-front::before {
  content: "";
  position: absolute;
  inset: calc(var(--pw) * 0.012);
  border-radius: calc(var(--pw) * 0.145);
  background: #07080b;
}
.screen {
  position: absolute;
  inset: calc(var(--pw) * 0.032);
  border-radius: calc(var(--pw) * 0.125);
  overflow: hidden;
  background: #000;
}
.wall-fallback {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 20% 10%, #3c58a8 0%, transparent 55%),
    radial-gradient(110% 90% at 85% 30%, #8a4fb0 0%, transparent 55%),
    radial-gradient(130% 100% at 50% 100%, #1c2d5e 0%, #07080f 70%);
}
.wallpaper {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.screen::after { /* glass sheen */
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(255, 255, 255, 0.14) 0%, transparent 28%);
  pointer-events: none;
}
.screen-ui {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 18%;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.5);
}
.lock-clock {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: calc(var(--pw) * 0.155);
  line-height: 1;
  letter-spacing: -0.02em;
}
.lock-date {
  font-size: calc(var(--pw) * 0.038);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(244, 246, 250, 0.85);
  margin-top: 0.6em;
}
.punch {
  position: absolute;
  top: calc(var(--pw) * 0.045);
  left: 50%;
  translate: -50% 0;
  width: calc(var(--pw) * 0.055);
  height: calc(var(--pw) * 0.055);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #1b1e26 0%, #000 65%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

/* back: colorway panel + camera island */
.back-panel {
  position: absolute;
  inset: calc(var(--pw) * 0.012);
  border-radius: calc(var(--pw) * 0.145);
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.1) 0%, transparent 30%),
    linear-gradient(160deg, var(--bc1) 0%, var(--bc2) 55%, var(--bc1) 100%);
  overflow: hidden;
}
.cam-island {
  position: absolute;
  top: calc(var(--pw) * 0.055);
  left: calc(var(--pw) * 0.055);
  width: calc(var(--pw) * 0.42);
  height: calc(var(--pw) * 0.55);
  border-radius: calc(var(--pw) * 0.11);
  background: linear-gradient(150deg, color-mix(in srgb, var(--isl) 70%, #fff 8%), var(--isl));
  box-shadow:
    inset 0 1px 1px rgba(255, 255, 255, 0.18),
    0 10px 26px rgba(0, 0, 0, 0.45);
  display: grid;
  grid-template-columns: 1fr 1fr;
  place-items: center;
  padding: calc(var(--pw) * 0.03);
}
.lens {
  width: calc(var(--pw) * 0.145);
  height: calc(var(--pw) * 0.145);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, #05070d 0%, #05070d 52%, #2e3644 60%, #10131a 78%, #3a4250 92%, #171b23 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1), 0 4px 10px rgba(0, 0, 0, 0.5);
  position: relative;
}
.lens i {
  position: absolute;
  top: 22%;
  left: 24%;
  width: 22%;
  height: 22%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(150, 190, 255, 0.75), rgba(150, 190, 255, 0));
}
.lens-c { grid-column: 1 / -1; }
.flash {
  position: absolute;
  right: calc(var(--pw) * 0.052);
  top: calc(var(--pw) * 0.062);
  width: calc(var(--pw) * 0.055);
  height: calc(var(--pw) * 0.055);
  border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, #fdf7dd, #b9a86a 70%);
  box-shadow: 0 0 8px rgba(253, 247, 221, 0.35);
}
.back-logo {
  position: absolute;
  left: 50%;
  top: 58%;
  translate: -50% -50%;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: calc(var(--pw) * 0.075);
  letter-spacing: 0.42em;
  padding-left: 0.42em; /* optically recenter tracked text */
  color: var(--lgc);
  opacity: 0.85;
}

/* static back view (camera / colors sections) */
.phone-slot[data-face="back"] .phone3d { transform: rotateY(180deg); }

/* ============================================================
   ACT I — hero + titanium rotation (one pinned stage)
   ============================================================ */
.act-one {
  --p: 0;
  height: 300vh;
  position: relative;
}
.stage {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: clip;
  display: grid;
  place-items: center;
}
.hero-copy {
  position: absolute;
  top: clamp(5rem, 13vh, 9rem);
  left: 50%;
  translate: -50% 0;
  width: min(90vw, 760px);
  text-align: center;
  z-index: 3;
  opacity: min(1, max(0, calc(1 - var(--p) * 2.6)));
  transform: translateY(calc(var(--p) * -70px));
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.8rem, 8.5vw, 5.9rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
}
.hero-sub {
  color: var(--ink-dim);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  margin-top: 1.2rem;
}
.hero-cta {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.4rem;
  flex-wrap: wrap;
}
.price-tag {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--ink-dim);
}

.hero-phone {
  position: absolute;
  left: 50%;
  bottom: -14vh;
  translate: -50% 0;
  z-index: 2;
  --pw: min(220px, 56vw, 24vh);
  transform: translateY(calc(var(--p) * -24vh)) scale(calc(1 + var(--p) * 0.08));
  animation: hero-rise 1.3s var(--ease-out) both, hero-float 7s ease-in-out 1.5s infinite;
}
.hero-phone .phone3d {
  transform: rotateY(calc(var(--p) * 195deg)) rotateX(calc(var(--p) * -6deg));
}
@keyframes hero-rise {
  from { opacity: 0; margin-bottom: -9vh; }
  to   { opacity: 1; margin-bottom: 0; }
}
@keyframes hero-float {
  0%, 100% { rotate: 0deg; translate: -50% 0; }
  50%      { rotate: 0.6deg; translate: -50% -1.4vh; }
}

.forge-copy {
  position: absolute;
  left: 50%;
  top: auto;
  bottom: 8vh;
  translate: -50% 0;
  width: min(88vw, 420px);
  text-align: center;
  max-width: 420px;
  z-index: 3;
  opacity: min(1, max(0, calc((var(--p) - 0.58) * 3.2)));
  transform: translateY(calc((1 - min(1, max(0, calc((var(--p) - 0.58) * 3.2)))) * 40px));
}
.forge-copy .chapter-lede { margin-inline: auto; }
.scroll-hint {
  position: absolute;
  bottom: 1.4rem;
  left: 50%;
  translate: -50% 0;
  z-index: 4;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--ink-faint);
  opacity: min(1, max(0, calc(1 - var(--p) * 5)));
  animation: hint-bob 2.4s ease-in-out infinite;
}
@keyframes hint-bob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(6px); }
}

/* ============================================================
   PINNED FEATURE CHAPTERS
   ============================================================ */
.chapter {
  --p: 1; /* no-JS / reduced-motion default: fully revealed */
  height: 240vh;
  position: relative;
}
.chapter-camera { height: 270vh; }
.pin {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: clip;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  align-content: center;
  gap: 1.6rem;
  text-align: left;
  max-width: 1240px;
  margin-inline: auto;
  padding: clamp(4.5rem, 10vh, 7rem) clamp(1.4rem, 5vw, 4rem);
  padding-block: 4rem 2.5rem;
}
.chapter-phone {
  display: grid;
  place-items: center;
  min-width: 0;
  order: -1;
}
.chapter-phone .phone-slot { --pw: min(170px, 42vw, 21vh); }

/* copy reveals in a stagger as --p climbs */
.chapter-copy > * { --d: 0; opacity: min(1, max(0, calc((var(--p) - var(--d)) * 4))); }
.chapter-copy > .eyebrow       { --d: 0.10; }
.chapter-copy > .chapter-title { --d: 0.16; }
.chapter-copy > .chapter-lede  { --d: 0.24; }
.chapter-copy > .stat-row      { --d: 0.32; }

.stat-row {
  list-style: none;
  display: flex;
  gap: clamp(1.4rem, 3.5vw, 3rem);
  flex-wrap: wrap;
}
.stat-step strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  letter-spacing: -0.02em;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-step span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* camera — zoom into the island (back face is mirrored, island sits top-right) */
.cam-zoom {
  transform:
    scale(calc(1 + var(--p) * 1.05))
    translate(calc(var(--p) * -11%), calc(var(--p) * 24%));
}

/* display — the screen wakes up and blooms */
.display-glow { transform: scale(calc(0.94 + var(--p) * 0.1)); }
.display-glow .screen { filter: brightness(calc(0.45 + var(--p) * 0.75)) saturate(calc(0.8 + var(--p) * 0.4)); }
.display-glow::after {
  content: "";
  position: absolute;
  inset: -22%;
  z-index: -1;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(96, 130, 200, 0.4), transparent 70%);
  opacity: var(--p);
}

/* battery — the charge card fills */
.charge-card {
  width: min(360px, 92vw);
  background: var(--bg-raise);
  border: 1px solid var(--hairline);
  border-radius: 24px;
  padding: 1.4rem;
}
.charge-pct {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.8rem;
  line-height: 1;
  letter-spacing: -0.03em;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.charge-pct em { font-style: normal; font-size: 0.45em; }
.charge-track {
  margin-top: 1.4rem;
  height: 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  overflow: hidden;
}
.charge-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #6f87ab, #dfe7f2);
  transform-origin: left center;
  transform: scaleX(var(--p));
}
.charge-note {
  margin-top: 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
}

/* chip — die + radiating traces */
.chip-diagram {
  position: relative;
  width: min(240px, 62vw);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}
.chip-die {
  width: 46%;
  aspect-ratio: 1;
  border-radius: 18px;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.12), transparent 40%),
    linear-gradient(160deg, #2c3340, #12151c);
  border: 1px solid rgba(190, 205, 230, 0.25);
  box-shadow:
    0 0 calc(var(--p) * 70px) rgba(120, 150, 210, calc(var(--p) * 0.35)),
    inset 0 0 24px rgba(0, 0, 0, 0.6);
  display: grid;
  place-content: center;
  text-align: center;
  transform: scale(calc(0.82 + var(--p) * 0.18));
}
.chip-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  line-height: 1;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.chip-sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.5em;
  padding-left: 0.5em;
  color: var(--ink-faint);
  margin-top: 0.4rem;
}
.trace {
  position: absolute;
  background: linear-gradient(to top, rgba(159, 180, 216, 0.9), rgba(159, 180, 216, 0.05));
  --tp: min(1, max(0, calc((var(--p) - var(--d)) / 0.55)));
}
.t-n, .t-s { width: 2px; height: 26%; }
.t-e, .t-w { height: 2px; width: 26%; background: linear-gradient(to right, rgba(159, 180, 216, 0.05), rgba(159, 180, 216, 0.9)); }
.t-n { bottom: 74%; transform-origin: bottom; transform: scaleY(var(--tp)); }
.t-s { top: 74%; transform-origin: top; transform: scaleY(var(--tp)); background: linear-gradient(to bottom, rgba(159, 180, 216, 0.9), rgba(159, 180, 216, 0.05)); }
.t-e { left: 74%; transform-origin: left; transform: scaleX(var(--tp)); background: linear-gradient(to right, rgba(159, 180, 216, 0.9), rgba(159, 180, 216, 0.05)); }
.t-w { right: 74%; transform-origin: right; transform: scaleX(var(--tp)); }
.traces span:nth-child(1)  { left: 34%; }
.traces span:nth-child(2)  { left: 50%; }
.traces span:nth-child(3)  { left: 66%; }
.traces span:nth-child(4)  { left: 34%; }
.traces span:nth-child(5)  { left: 50%; }
.traces span:nth-child(6)  { left: 66%; }
.traces span:nth-child(7)  { top: 34%; }
.traces span:nth-child(8)  { top: 50%; }
.traces span:nth-child(9)  { top: 66%; }
.traces span:nth-child(10) { top: 34%; }
.traces span:nth-child(11) { top: 50%; }
.traces span:nth-child(12) { top: 66%; }

/* ============================================================
   SPECS STRIP
   ============================================================ */
.specs {
  max-width: 1240px;
  margin-inline: auto;
  padding: clamp(4rem, 10vh, 8rem) clamp(1.4rem, 5vw, 4rem);
  border-top: 1px solid var(--hairline);
}
.spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  overflow: hidden;
}
.spec {
  padding: 1.4rem 1.6rem;
  border-bottom: 1px solid var(--hairline);
  border-right: 1px solid var(--hairline);
  background: rgba(255, 255, 255, 0.015);
}
.spec dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.35rem;
}
.spec dd { font-family: var(--font-mono); font-size: 0.95rem; color: var(--ink); }

/* ============================================================
   COLOR PICKER
   ============================================================ */
.colors {
  max-width: 1240px;
  margin-inline: auto;
  padding: clamp(4rem, 12vh, 9rem) clamp(1.4rem, 5vw, 4rem);
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
}
.colors-phone { display: grid; place-items: center; order: -1; }
.colors-phone .phone-slot { --pw: min(210px, 55vw); }
.swatch-row { display: flex; gap: 0.9rem; flex-wrap: wrap; }
.swatch {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font: 600 0.9rem var(--font-body);
  color: var(--ink-dim);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--hairline);
  border-radius: 999px;
  padding: 0.55rem 1.2rem 0.55rem 0.6rem;
  cursor: pointer;
  transition: border-color 0.25s, color 0.25s, background-color 0.25s;
}
.swatch:hover { color: var(--ink); background: rgba(255, 255, 255, 0.08); }
.swatch.is-active { border-color: var(--accent); color: var(--ink); }
.swatch-chip {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.35), inset 0 -2px 4px rgba(0, 0, 0, 0.4);
}
.chip-titanium { background: linear-gradient(150deg, #dfe6ef, #55606f); }
.chip-midnight { background: linear-gradient(150deg, #3c414c, #0b0c11); }
.chip-bone     { background: linear-gradient(150deg, #f4efe4, #a99f8c); }
.tone-name {
  margin-top: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

/* ============================================================
   GALLERY
   ============================================================ */
.gallery {
  max-width: 1240px;
  margin-inline: auto;
  padding: clamp(3rem, 8vh, 6rem) clamp(1.4rem, 5vw, 4rem);
  border-top: 1px solid var(--hairline);
}
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  grid-auto-rows: minmax(220px, 34vh);
  gap: clamp(0.8rem, 1.6vw, 1.4rem);
}
.shot {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  background:
    radial-gradient(120% 100% at 20% 0%, #1a2030 0%, transparent 60%),
    var(--bg-raise);
  border: 1px solid var(--hairline);
}
.shot-tall { grid-row: span 1; }
.shot img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
  transition: transform 0.7s var(--ease-out);
}
.shot:hover img { transform: scale(1.04); }
.shot figcaption {
  position: absolute;
  left: 1.2rem;
  bottom: 1rem;
  z-index: 2;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.8);
}
.shot::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 5, 7, 0.75) 0%, transparent 40%);
  pointer-events: none;
}

/* ============================================================
   FINAL CTA + FOOTER
   ============================================================ */
.buy {
  text-align: center;
  padding: clamp(6rem, 18vh, 12rem) 1.4rem;
  border-top: 1px solid var(--hairline);
  background: radial-gradient(60% 50% at 50% 100%, rgba(90, 120, 180, 0.14) 0%, transparent 70%);
}
.buy-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.8rem, 8vw, 6rem);
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 1.6rem;
}
.buy-price { color: var(--ink-dim); margin-bottom: 2.4rem; }
.buy-price strong { color: var(--ink); font-size: 1.25em; }
.buy-fine { margin-top: 1.8rem; font-size: 0.82rem; color: var(--ink-faint); }

.site-foot {
  border-top: 1px solid var(--hairline);
  padding: 2.5rem clamp(1.4rem, 5vw, 4rem) 3rem;
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.85rem;
}
.foot-credit { margin-top: 0.5rem; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (min-width: 881px) {
  .head-nav { display: flex; }

  .pin {
    grid-template-columns: 1fr 1fr;
    align-content: normal;
    gap: clamp(1.5rem, 5vw, 5rem);
    text-align: unset;
  }
  .chapter-phone { order: 0; }
  .pin { padding-block: clamp(4.5rem, 10vh, 7rem); }
  .chapter-phone .phone-slot { --pw: min(260px, 52vw, 30vh); }
  .chapter-title { font-size: clamp(2.4rem, 6vw, 4.6rem); }
  .charge-card { width: min(420px, 86vw); padding: clamp(1.6rem, 3vw, 2.6rem); }
  .charge-pct { font-size: clamp(3.4rem, 7vw, 5.4rem); }
  .chip-diagram { width: min(340px, 70vw); }

  .hero-phone { --pw: min(300px, 56vw, 27vh); bottom: -18vh; transform: translateY(calc(var(--p) * -26vh)) scale(calc(1 + var(--p) * 0.08)); }
  .forge-copy {
    left: clamp(1.4rem, 7vw, 8rem);
    top: 50%;
    bottom: auto;
    translate: 0 -50%;
    width: auto;
    text-align: unset;
  }
  .forge-copy .chapter-lede { margin-inline: 0; }

  .colors { grid-template-columns: 1.1fr 1fr; }
  .colors-phone { order: 0; }
  .colors-phone .phone-slot { --pw: min(280px, 60vw); }

  .gallery-grid { grid-template-columns: 1.25fr 1fr; grid-auto-rows: minmax(220px, 38vh); }
  .shot-tall { grid-row: span 2; }
}

/* ============================================================
   REDUCED MOTION — everything unpins and stacks, fully readable
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }

  .act-one { --p: 0; height: auto; }
  .stage {
    position: static;
    height: auto;
    overflow: visible;
    display: block;
    padding: 7rem 1.4rem 4rem;
  }
  .hero-copy, .hero-phone, .forge-copy {
    position: static;
    translate: none;
    transform: none;
    opacity: 1;
    margin-inline: auto;
  }
  .hero-phone { margin-block: 3rem; }
  .hero-phone .phone3d { transform: none; }
  .forge-copy { max-width: 560px; text-align: center; }
  .forge-copy .chapter-lede { margin-inline: auto; }
  .scroll-hint { display: none; }

  .chapter { --p: 1; height: auto; }
  .pin { position: static; height: auto; overflow: visible; padding-block: 4rem; }
  .cam-zoom, .display-glow { transform: none; }
  .chapter-copy > * { opacity: 1; }
}