/* ===========================================================
   Preek AI — preekai.com
   Warmth in a cold world
   =========================================================== */

:root {
  /* warm tone palette */
  --bg: #F6F1E9;
  --bg-soft: #EFE8DB;
  --bg-card: #FBF7F0;
  --ink: #1C1814;
  --ink-2: #443B30;
  --ink-3: #6A5E4F;
  --ink-4: #A39581;
  --line: #E2D8C5;
  --line-soft: #ECE3D2;

  /* accents — same chroma family */
  --terracotta: oklch(0.62 0.10 45);
  --terracotta-soft: oklch(0.78 0.06 45);
  --sage: oklch(0.68 0.06 130);
  --sage-soft: oklch(0.84 0.04 130);
  --warm-glow: oklch(0.92 0.05 70);
  --terracotta-deep: oklch(0.5 0.10 40);

  /* type — warm, humanist pairing for KO/EN/JA */
  --serif: "Newsreader", "Gowun Batang", "Shippori Mincho", ui-serif, Georgia, serif;
  --sans: "Manrope", "Pretendard", "Pretendard Variable", "Zen Maru Gothic", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --sans-jp: "Zen Maru Gothic", "Manrope", "Pretendard", system-ui, sans-serif;
  --serif-jp: "Shippori Mincho", "Newsreader", ui-serif, serif;
  --sans-ko: "Pretendard", "Pretendard Variable", "Manrope", system-ui, sans-serif;
  --serif-ko: "Gowun Batang", "Newsreader", ui-serif, serif;

  /* motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-inout: cubic-bezier(0.4, 0, 0.2, 1);
  --t-micro: 180ms;
  --t-std: 360ms;
  --t-hero: 720ms;

  /* layout */
  --max: 1200px;
  --gutter: clamp(20px, 4vw, 56px);
  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 28px;
}

/* === side rail — editorial mono markers (desktop only) === */
.rail {
  position: fixed;
  top: 50%; transform: translateY(-50%);
  z-index: 3;
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.18em;
  color: color-mix(in oklab, var(--ink) 35%, transparent);
  text-transform: uppercase;
  pointer-events: none;
}
.rail.left  { left: 16px; writing-mode: vertical-rl; transform: translateY(-50%) rotate(180deg); }
.rail.right { right: 16px; writing-mode: vertical-rl; }
.rail span::before { content: "/ "; opacity: 0.5; }
@media (max-width: 1100px) { .rail { display: none; } }

/* === reset === */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  font-feature-settings: "kern", "liga", "ss01";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
:focus-visible { outline: 2px solid var(--terracotta); outline-offset: 3px; border-radius: 4px; }

/* loading fade-in */
body { opacity: 0; transition: opacity 400ms var(--ease-out); }
body.loaded { opacity: 1; }

/* lang switcher reveal */
.lang-content { display: none; }
.lang-content.active { display: block; }

/* per-language type system — Korean uses Pretendard + Gowun Batang display,
   Japanese uses Zen Maru Gothic + Shippori Mincho display,
   English uses Manrope + Newsreader display */
.lang-content[data-lang="ko"] { font-family: var(--sans-ko); }
.lang-content[data-lang="ko"] h1,
.lang-content[data-lang="ko"] h2,
.lang-content[data-lang="ko"] h3,
.lang-content[data-lang="ko"] h4,
.lang-content[data-lang="ko"] .closing-line,
.lang-content[data-lang="ko"] .manifesto-quote,
.lang-content[data-lang="ko"] .mini-card h4,
.lang-content[data-lang="ko"] .mini-card .price { font-family: var(--serif-ko); letter-spacing: -0.025em; }

.lang-content[data-lang="ja"] { font-family: var(--sans-jp); }
.lang-content[data-lang="ja"] h1,
.lang-content[data-lang="ja"] h2,
.lang-content[data-lang="ja"] h3,
.lang-content[data-lang="ja"] h4,
.lang-content[data-lang="ja"] .closing-line,
.lang-content[data-lang="ja"] .manifesto-quote,
.lang-content[data-lang="ja"] .mini-card h4,
.lang-content[data-lang="ja"] .mini-card .price { font-family: var(--serif-jp); letter-spacing: -0.02em; }

.lang-content[data-lang="ja"] em,
.lang-content[data-lang="ko"] em { font-style: normal; font-weight: 500; }

/* === ambient background === */
.ambient {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 0;
  overflow: hidden;
}
.ambient::before, .ambient::after {
  content: ""; position: absolute;
  width: 60vw; height: 60vw; max-width: 800px; max-height: 800px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  will-change: transform;
}
.ambient::before {
  background: radial-gradient(circle, oklch(0.85 0.08 55 / 0.7), transparent 70%);
  top: -20%; left: -10%;
  animation: drift1 28s ease-in-out infinite alternate;
}
.ambient::after {
  background: radial-gradient(circle, oklch(0.86 0.05 130 / 0.55), transparent 70%);
  bottom: -25%; right: -15%;
  animation: drift2 22s ease-in-out infinite alternate;
}
@keyframes drift1 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(8vw, 6vh) scale(1.08); }
}
@keyframes drift2 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-6vw, -4vh) scale(1.12); }
}

/* grain */
.grain {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 1;
  opacity: 0.12; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.1  0 0 0 0 0.08  0 0 0 0 0.05  0 0 0 0.6 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

main, header, footer { position: relative; z-index: 2; }

/* === header === */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--line) 60%, transparent);
}
.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px var(--gutter);
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--serif);
  font-size: 22px; letter-spacing: -0.01em;
}
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: url("assets/icon.png") center/cover no-repeat,
              linear-gradient(135deg, #ffb89a, #ffd9a8);
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--ink) 8%, transparent),
              0 6px 14px -6px color-mix(in oklab, var(--terracotta) 50%, transparent);
  animation: breathe 6s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.06); }
}

/* lang switcher */
.lang-switcher {
  position: relative;
  display: inline-flex;
  background: color-mix(in oklab, var(--bg-card) 80%, transparent);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
}
.lang-switcher .lang-pill {
  position: absolute; top: 4px; left: 4px;
  height: calc(100% - 8px);
  background: var(--ink);
  border-radius: 999px;
  z-index: 0;
  transition: transform 360ms var(--ease-out), width 360ms var(--ease-out);
  will-change: transform, width;
}
.lang-btn {
  position: relative; z-index: 1;
  padding: 7px 14px;
  font-size: 13px; letter-spacing: 0.01em;
  color: var(--ink-3);
  border-radius: 999px;
  transition: color 200ms var(--ease-inout);
  white-space: nowrap;
}
.lang-btn[aria-pressed="true"] { color: var(--bg); }

/* === hero === */
.hero {
  padding: clamp(80px, 14vh, 180px) var(--gutter) clamp(100px, 16vh, 180px);
  max-width: var(--max);
  margin: 0 auto;
  position: relative;
}
.hero::before {
  content: "";
  position: absolute; left: var(--gutter); right: var(--gutter);
  bottom: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--line) 20%, var(--line) 80%, transparent);
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-family: var(--mono);
  margin-bottom: 28px;
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--terracotta);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--terracotta) 22%, transparent);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px color-mix(in oklab, var(--terracotta) 22%, transparent); }
  50%      { box-shadow: 0 0 0 8px color-mix(in oklab, var(--terracotta) 6%, transparent); }
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(36px, 6.4vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.028em;
  margin: 0 0 28px;
  text-wrap: balance;
}
.hero h1 .nbr { display: block; white-space: nowrap; }
.hero h1 .strike { position: relative; display: inline-block; }
.hero h1 .strike::after {
  content: ""; position: absolute;
  left: -2%; right: -2%; top: 54%; height: 3px;
  background: var(--terracotta); opacity: 0.85;
  transform-origin: left;
  transform: scaleX(0);
  animation: strike 1100ms 700ms var(--ease-out) forwards;
  border-radius: 2px;
}
@keyframes strike { to { transform: scaleX(1); } }
h1 em, h2 em, h3 em, h4 em,
.closing-line em,
.manifesto-quote em {
  font-family: inherit;
  font-style: normal;
  color: var(--terracotta);
}
.hero .lede {
  max-width: 560px;
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--ink-2);
  line-height: 1.55;
  margin: 0 0 40px;
  text-wrap: pretty;
}

.cta-row {
  display: flex; gap: 12px;
  flex-wrap: wrap; align-items: center;
}

/* store badges */
.badge {
  position: relative;
  display: inline-flex; align-items: center; gap: 12px;
  background: var(--ink);
  color: var(--bg);
  padding: 12px 22px 12px 18px;
  border-radius: 14px;
  font-size: 14px;
  transition: transform var(--t-std) var(--ease-out),
              box-shadow var(--t-std) var(--ease-out);
  box-shadow: 0 2px 0 0 color-mix(in oklab, var(--ink) 90%, transparent),
              0 16px 30px -16px color-mix(in oklab, var(--ink) 40%, transparent);
  will-change: transform;
}
.badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 0 0 color-mix(in oklab, var(--ink) 90%, transparent),
              0 24px 40px -16px color-mix(in oklab, var(--ink) 50%, transparent);
}
.badge:active {
  transform: translateY(1px) scale(0.98);
  box-shadow: 0 1px 0 0 color-mix(in oklab, var(--ink) 90%, transparent),
              0 8px 16px -10px color-mix(in oklab, var(--ink) 40%, transparent);
  transition: transform 90ms var(--ease-out), box-shadow 90ms var(--ease-out);
}
.badge.magnetic { transition: transform 240ms var(--ease-out), box-shadow var(--t-std) var(--ease-out); }
.badge svg { width: 22px; height: 22px; flex: none; }
.badge .badge-small { font-size: 10px; opacity: 0.7; letter-spacing: 0.06em; }
.badge .badge-big { font-size: 15px; font-weight: 500; letter-spacing: -0.005em; line-height: 1.1; }
.badge-text { display: flex; flex-direction: column; line-height: 1.1; }

/* hero card / device placeholder */
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(40px, 6vw, 72px);
  align-items: center;
}
@media (min-width: 980px) {
  .hero-grid { grid-template-columns: 1.1fr 0.9fr; }
}
.hero-visual {
  position: relative;
  aspect-ratio: 4 / 5;
  max-width: 480px;
  margin: 0 auto;
  border-radius: 36px;
  overflow: hidden;
  background:
    radial-gradient(120% 100% at 30% 0%, oklch(0.96 0.04 70) 0%, transparent 50%),
    linear-gradient(180deg, oklch(0.94 0.04 60) 0%, oklch(0.86 0.07 45) 100%);
  box-shadow:
    0 1px 0 color-mix(in oklab, var(--bg) 80%, transparent) inset,
    0 60px 100px -40px color-mix(in oklab, var(--terracotta-deep) 38%, transparent);
}
.hero-visual .annotation {
  position: absolute;
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
  background: color-mix(in oklab, var(--bg-card) 92%, transparent);
  padding: 6px 10px; border-radius: 999px;
  border: 1px solid var(--line-soft);
  white-space: nowrap;
  z-index: 2;
  display: inline-flex; align-items: center; gap: 8px;
  animation: anFloat 4.6s ease-in-out infinite alternate;
}
.hero-visual .annotation::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--terracotta);
}
.hero-visual .annotation.a1 { top: 9%; right: -10px; animation-delay: 0s; }
.hero-visual .annotation.a2 { bottom: 18%; left: -12px; animation-delay: -1.6s; }
.hero-visual .annotation.a3 { bottom: 6%; right: 8%; animation-delay: -3.2s; }
@keyframes anFloat {
  from { transform: translateY(-3px); }
  to   { transform: translateY(3px); }
}
.hero-visual::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(135deg,
      transparent 0 14px,
      color-mix(in oklab, var(--ink) 4%, transparent) 14px 15px);
}
.hero-visual .placeholder-tag {
  position: absolute;
  top: 16px; left: 16px;
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.05em;
  color: var(--ink-3);
  background: color-mix(in oklab, var(--bg-card) 92%, transparent);
  padding: 6px 10px; border-radius: 6px;
  border: 1px solid var(--line-soft);
}

/* phone mock inside hero visual */
.phone {
  position: absolute;
  width: 62%;
  aspect-ratio: 9 / 19;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  background: var(--ink);
  border-radius: 38px;
  padding: 10px;
  box-shadow:
    0 30px 50px -20px color-mix(in oklab, var(--ink) 40%, transparent),
    0 1px 0 color-mix(in oklab, var(--bg) 30%, transparent) inset,
    0 0 0 1.5px color-mix(in oklab, var(--ink) 80%, transparent);
}
.phone-screen {
  width: 100%; height: 100%;
  border-radius: 28px;
  background: linear-gradient(180deg, #F2EBDF, #E8DEC8);
  position: relative;
  overflow: hidden;
  display: flex; flex-direction: column;
  padding: 28px 18px 18px;
  gap: 12px;
}
.call-row {
  display: flex; align-items: center; gap: 10px;
  background: color-mix(in oklab, #fff 80%, transparent);
  border-radius: 14px;
  padding: 10px 12px;
  font-size: 11px;
  border: 1px solid color-mix(in oklab, var(--ink) 6%, transparent);
}
.avatar {
  width: 28px; height: 28px; border-radius: 50%;
  background: linear-gradient(135deg, var(--terracotta-soft), var(--terracotta));
  flex: none;
}
.call-meta { display: flex; flex-direction: column; line-height: 1.2; }
.call-meta strong { font-size: 12px; font-weight: 600; }
.call-meta span { color: var(--ink-3); font-size: 10px; }
.waveform {
  display: flex; align-items: center; gap: 3px; height: 18px;
  margin-left: auto;
}
.waveform i {
  display: block;
  width: 2px; height: 30%;
  background: var(--terracotta);
  border-radius: 2px;
  animation: wave 1.4s ease-in-out infinite;
}
.waveform i:nth-child(2) { animation-delay: 0.1s; }
.waveform i:nth-child(3) { animation-delay: 0.2s; }
.waveform i:nth-child(4) { animation-delay: 0.3s; }
.waveform i:nth-child(5) { animation-delay: 0.4s; }
@keyframes wave {
  0%, 100% { height: 25%; }
  50%      { height: 95%; }
}

/* === manifesto strip === */
.manifesto {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--bg) 60%, transparent), transparent 30%, transparent 70%, color-mix(in oklab, var(--bg) 60%, transparent)),
    var(--bg-soft);
  padding: clamp(70px, 10vh, 120px) var(--gutter);
}
.manifesto-inner { max-width: var(--max); margin: 0 auto; }
.manifesto-quote {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(28px, 4.2vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.012em;
  color: var(--ink);
  text-wrap: balance;
  max-width: 22ch;
}
.manifesto-quote .mark { color: var(--terracotta); font-style: normal; margin-right: 0.1em; }
.manifesto-by {
  margin-top: 28px;
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.2em;
  color: var(--ink-3); text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 12px;
}
.manifesto-by::before { content: ""; width: 28px; height: 1px; background: var(--ink-3); }

/* === sections shared === */
section.section {
  padding: clamp(80px, 12vh, 140px) var(--gutter);
  max-width: var(--max);
  margin: 0 auto;
  position: relative;
}
.section-eyebrow {
  font-family: var(--mono);
  font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 18px;
}
.section h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(32px, 5vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.022em;
  margin: 0 0 24px;
  text-wrap: balance;
}
.section h2 em { font-style: normal; color: var(--terracotta); }
.section .section-lede {
  max-width: 620px;
  color: var(--ink-2);
  font-size: clamp(16px, 1.4vw, 19px);
  margin: 0 0 56px;
  text-wrap: pretty;
}

/* === why === */
.why .why-grid {
  display: grid; gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  margin-top: 48px;
}
.why-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  padding: 28px;
  border-radius: var(--radius);
  position: relative;
}
.why-card .glyph {
  font-family: var(--serif);
  font-size: 38px;
  color: var(--terracotta);
  line-height: 1;
  margin-bottom: 16px;
}
.why-card h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 400;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.why-card p { margin: 0; color: var(--ink-2); font-size: 15px; line-height: 1.55; }

/* === features (4 axes) === */
.features-grid {
  display: grid; gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-top: 56px;
}
@media (min-width: 980px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}
.feature {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 36px 32px 32px;
  overflow: hidden;
  transition:
    transform var(--t-std) var(--ease-out),
    box-shadow var(--t-std) var(--ease-out),
    border-color var(--t-std) var(--ease-out);
}
.feature:hover {
  transform: translateY(-4px);
  border-color: color-mix(in oklab, var(--terracotta) 30%, var(--line-soft));
  box-shadow: 0 30px 50px -30px color-mix(in oklab, var(--ink) 25%, transparent);
}
.feature .num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--ink-4);
  margin-bottom: 18px;
}
.feature h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(24px, 2.4vw, 30px);
  letter-spacing: -0.015em;
  margin: 0 0 12px;
}
.feature p {
  margin: 0 0 24px;
  color: var(--ink-2);
  font-size: 15.5px;
  line-height: 1.55;
}
.feature .feature-art {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-soft);
  border: 1px solid var(--line-soft);
}
.feature .icon-bubble {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 44px; height: 44px;
  border-radius: 14px;
  background: color-mix(in oklab, var(--terracotta) 14%, var(--bg-card));
  color: var(--terracotta);
  margin-bottom: 16px;
  transition: transform var(--t-std) var(--ease-out);
}
.feature:hover .icon-bubble { transform: translateY(-2px) scale(1.06); }
.feature .icon-bubble svg { width: 22px; height: 22px; }

/* feature art — voice waves */
.art-voice {
  display: flex; align-items: end; justify-content: center;
  gap: 6px; padding: 22px;
  width: 100%; height: 100%;
  background: linear-gradient(135deg, oklch(0.94 0.03 50), oklch(0.88 0.05 45));
}
.art-voice b {
  display: block; flex: 1;
  background: var(--terracotta);
  border-radius: 4px;
  opacity: 0.85;
  height: 30%;
  animation: voice 2.4s ease-in-out infinite;
}
.art-voice b:nth-child(2) { animation-delay: .1s; }
.art-voice b:nth-child(3) { animation-delay: .2s; }
.art-voice b:nth-child(4) { animation-delay: .3s; }
.art-voice b:nth-child(5) { animation-delay: .4s; }
.art-voice b:nth-child(6) { animation-delay: .5s; }
.art-voice b:nth-child(7) { animation-delay: .6s; }
.art-voice b:nth-child(8) { animation-delay: .7s; }
.art-voice b:nth-child(9) { animation-delay: .8s; }
.art-voice b:nth-child(10){ animation-delay: .9s; }
@keyframes voice {
  0%, 100% { height: 25%; }
  50%      { height: 90%; }
}

/* feature art — clone */
.art-clone {
  width: 100%; height: 100%;
  display: grid; place-items: center;
  background: linear-gradient(135deg, oklch(0.94 0.03 130), oklch(0.86 0.05 120));
  position: relative;
}
.art-clone .ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid color-mix(in oklab, var(--ink) 14%, transparent);
  width: 60px; height: 60px;
}
.art-clone .ring.r2 { width: 110px; height: 110px; }
.art-clone .ring.r3 { width: 160px; height: 160px; opacity: 0.6; }
.art-clone .ring.r4 { width: 220px; height: 220px; opacity: 0.35; }
.art-clone .center {
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, var(--terracotta-soft), var(--terracotta));
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--ink) 8%, transparent);
  position: relative; z-index: 1;
}

/* feature art — meal */
.art-meal {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, oklch(0.94 0.04 80), oklch(0.86 0.06 65));
  display: grid; place-items: center;
  position: relative;
}
.art-meal .plate {
  width: 70%; aspect-ratio: 1; border-radius: 50%;
  background: color-mix(in oklab, #fff 86%, transparent);
  border: 1px solid color-mix(in oklab, var(--ink) 8%, transparent);
  position: relative;
  display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr;
  padding: 14%; gap: 6px;
  box-shadow: inset 0 0 0 6px color-mix(in oklab, var(--bg) 80%, transparent);
}
.art-meal .plate i {
  display: block; border-radius: 50%;
}
.art-meal .plate i:nth-child(1) { background: oklch(0.7 0.12 50); }
.art-meal .plate i:nth-child(2) { background: oklch(0.78 0.08 130); }
.art-meal .plate i:nth-child(3) { background: oklch(0.85 0.05 90); }
.art-meal .plate i:nth-child(4) { background: oklch(0.65 0.08 30); }

/* feature art — summary */
.art-summary {
  width: 100%; height: 100%; padding: 22px;
  background: linear-gradient(135deg, oklch(0.93 0.03 70), oklch(0.86 0.05 60));
  display: flex; flex-direction: column; gap: 8px;
  justify-content: center;
}
.art-summary .line {
  height: 8px; border-radius: 4px;
  background: color-mix(in oklab, #fff 70%, transparent);
}
.art-summary .line.short { width: 40%; }
.art-summary .line.med   { width: 70%; }
.art-summary .line.tag   {
  width: max-content; padding: 0 10px; height: 22px;
  display: inline-flex; align-items: center;
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.08em;
  background: color-mix(in oklab, var(--terracotta) 22%, #fff);
  color: var(--terracotta);
  border: 1px solid color-mix(in oklab, var(--terracotta) 35%, transparent);
  margin-bottom: 4px;
}

/* === scenario (sticky scroll) === */
.scenario { padding: 0; max-width: none; }
.scenario-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(80px, 12vh, 140px) var(--gutter) 0;
}
.scenario-stage {
  position: relative;
  margin-top: 40px;
}
.scenario-track {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(60px, 12vh, 120px);
}
@media (min-width: 980px) {
  .scenario-track {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
  }
}
.scenario-steps {
  display: flex; flex-direction: column;
  gap: clamp(80px, 14vh, 160px);
  padding-bottom: 30vh;
}
.scenario-step {
  padding: 8px 0;
}
.scenario-step .step-num {
  font-family: var(--mono);
  font-size: 12px; letter-spacing: 0.18em;
  color: var(--ink-4);
  margin-bottom: 18px;
  display: inline-flex; gap: 10px; align-items: center;
}
.scenario-step .step-num::before {
  content: ""; width: 18px; height: 1px; background: var(--ink-4);
}
.scenario-step h3 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(28px, 3.2vw, 40px);
  margin: 0 0 16px;
  letter-spacing: -0.018em;
  line-height: 1.1;
}
.scenario-step p {
  color: var(--ink-2); margin: 0; max-width: 460px;
  font-size: 16px; line-height: 1.6;
}
.scenario-visual {
  position: sticky; top: 18vh;
  height: 64vh;
  display: grid; place-items: center;
}
.scenario-frame {
  position: relative;
  width: 100%; max-width: 460px;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(180deg, oklch(0.94 0.04 60), oklch(0.88 0.05 50));
  border: 1px solid var(--line-soft);
  box-shadow: 0 60px 80px -50px color-mix(in oklab, var(--ink) 30%, transparent);
}
.scenario-slide {
  position: absolute; inset: 0;
  opacity: 0; transform: scale(0.98) translateY(8px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
  display: flex; align-items: center; justify-content: center;
  padding: 28px;
}
.scenario-slide.active { opacity: 1; transform: scale(1) translateY(0); }

.mini-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--line-soft);
  padding: 22px;
  width: 100%; max-width: 320px;
  box-shadow: 0 20px 40px -24px color-mix(in oklab, var(--ink) 30%, transparent);
}
.mini-card h4 {
  font-family: var(--serif); font-weight: 400;
  font-size: 20px; margin: 0 0 10px;
}
.mini-card p { margin: 0 0 10px; font-size: 13.5px; color: var(--ink-2); }
.mini-card .row {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; padding: 8px 0;
  border-top: 1px solid var(--line-soft);
}
.mini-card .row:first-of-type { border-top: 0; padding-top: 0; }
.mini-card .pill {
  display: inline-block; font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.08em;
  padding: 4px 8px; border-radius: 999px;
  background: color-mix(in oklab, var(--sage) 18%, var(--bg-card));
  color: oklch(0.45 0.06 130);
}
.mini-card .price {
  font-family: var(--serif); font-size: 30px; line-height: 1;
  color: var(--ink); margin-bottom: 12px;
}
.mini-card .pay-btn {
  display: block; text-align: center;
  background: var(--ink); color: var(--bg);
  padding: 10px; border-radius: 10px;
  font-size: 13px; margin-top: 12px;
}
.mini-card .ringing {
  display: flex; justify-content: center; padding: 20px 0;
}
.mini-card .ringing .pulse {
  width: 70px; height: 70px; border-radius: 50%;
  background: var(--terracotta);
  display: grid; place-items: center;
  color: white;
  position: relative;
  animation: ringpulse 1.6s ease-in-out infinite;
}
@keyframes ringpulse {
  0%,100% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--terracotta) 50%, transparent); }
  50%     { box-shadow: 0 0 0 18px color-mix(in oklab, var(--terracotta) 0%, transparent); }
}

/* === data safety === */
.safety {
  background: var(--bg-soft);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  max-width: none;
}
.safety-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(80px, 12vh, 140px) var(--gutter);
}
.safety-grid {
  display: grid; gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-top: 48px;
}
.safety-item {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 24px;
}
.safety-item .check {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: color-mix(in oklab, var(--sage) 24%, var(--bg-card));
  color: oklch(0.4 0.08 130);
  margin-bottom: 14px;
}
.safety-item .check svg { width: 16px; height: 16px; }
.safety-item h4 {
  font-family: var(--serif); font-weight: 400;
  font-size: 19px; margin: 0 0 8px;
}
.safety-item p { margin: 0; font-size: 14.5px; color: var(--ink-2); line-height: 1.5; }

/* === download === */
.download {
  text-align: center;
}
.download h2 { margin-left: auto; margin-right: auto; max-width: none; white-space: nowrap; }
@media (max-width: 720px) {
  .download h2 { white-space: normal; max-width: 18ch; }
}
.download .section-lede { margin-left: auto; margin-right: auto; }
.download .cta-row { justify-content: center; }

/* closing */
.closing {
  padding: clamp(120px, 20vh, 240px) var(--gutter);
  text-align: center;
  max-width: 980px; margin: 0 auto;
}
.closing .closing-line {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(36px, 6.4vw, 96px);
  line-height: 1.02;
  letter-spacing: -0.028em;
  color: var(--ink);
  text-wrap: balance;
  white-space: nowrap;
  margin: 0;
  opacity: 0;
  transform: translateY(14px);
  filter: blur(6px);
  transition: opacity 1200ms var(--ease-out), transform 1200ms var(--ease-out), filter 1200ms var(--ease-out), letter-spacing 1200ms var(--ease-out);
}
.closing .closing-line em { font-style: normal; color: var(--terracotta); }
.closing .closing-sub {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 36px 0 0;
  opacity: 0; transform: translateY(8px);
  transition: opacity 900ms 600ms var(--ease-out), transform 900ms 600ms var(--ease-out);
}
.closing.in .closing-line {
  opacity: 1; transform: translateY(0);
  filter: blur(0);
  letter-spacing: -0.02em;
}
.closing.in .closing-sub { opacity: 1; transform: translateY(0); }

/* === footer === */
footer.site-footer {
  background: var(--ink);
  color: color-mix(in oklab, var(--bg) 85%, transparent);
  padding: 56px var(--gutter) 32px;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
@media (min-width: 760px) {
  .footer-inner {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }
}
.footer-brand .brand { color: var(--bg); }
.footer-brand p {
  margin: 16px 0 0;
  color: color-mix(in oklab, var(--bg) 60%, transparent);
  font-size: 14px; max-width: 32ch; line-height: 1.5;
}
.footer-col h5 {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.18em;
  text-transform: uppercase;
  color: color-mix(in oklab, var(--bg) 50%, transparent);
  margin: 0 0 14px; font-weight: 500;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-col a {
  color: color-mix(in oklab, var(--bg) 80%, transparent);
  font-size: 14px;
  transition: color var(--t-micro) var(--ease-inout);
}
.footer-col a:hover { color: var(--bg); }
.footer-base {
  max-width: var(--max);
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid color-mix(in oklab, var(--bg) 12%, transparent);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 12px; font-family: var(--mono);
  color: color-mix(in oklab, var(--bg) 50%, transparent);
}

/* === reveal animation primitives === */
.reveal {
  opacity: 0;
  transform: translateY(20px) scale(0.98);
  transition: opacity var(--t-hero) var(--ease-out),
              transform var(--t-hero) var(--ease-out);
  will-change: transform, opacity;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* hero stagger */
.stagger > * { opacity: 0; transform: translateY(16px); }
body.loaded .stagger > * {
  animation: heroStagger 800ms var(--ease-out) forwards;
}
body.loaded .stagger > *:nth-child(1) { animation-delay:  60ms; }
body.loaded .stagger > *:nth-child(2) { animation-delay: 180ms; }
body.loaded .stagger > *:nth-child(3) { animation-delay: 300ms; }
body.loaded .stagger > *:nth-child(4) { animation-delay: 420ms; }
body.loaded .stagger > *:nth-child(5) { animation-delay: 540ms; }
@keyframes heroStagger {
  to { opacity: 1; transform: translateY(0); }
}

/* counter */
.counter { font-family: var(--serif); font-size: clamp(44px, 6vw, 72px); line-height: 1; letter-spacing: -0.02em; }

/* mobile tweaks */
@media (max-width: 640px) {
  .hero { padding-top: 40px; padding-bottom: 60px; }
  .lang-btn { padding: 6px 10px; font-size: 12px; }
  .badge { padding: 11px 16px; }
  .badge .badge-big { font-size: 14px; }
  .scenario-visual { height: 52vh; top: 20vh; }
  .features-grid { grid-template-columns: 1fr; }
}

/* === reduced motion killswitch === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  body { opacity: 1; }
  .reveal { opacity: 1; transform: none; }
  .stagger > * { opacity: 1; transform: none; }
  .ambient { display: none; }
}