/* ============================================================
   Site Kitchen LP — 温かいモノクロ × エディトリアル
   ============================================================ */

:root {
  --bg: #fbfbfa;
  --bg-tint: #f7f6f3;
  --surface: #ffffff;
  --ink: #111111;
  --ink-soft: #2f3437;
  --muted: #787774;
  --line: #eaeaea;
  --line-strong: #d8d6d1;

  --pale-red-bg: #fdebec;
  --pale-red-tx: #9f2f2d;
  --pale-blue-bg: #e1f3fe;
  --pale-blue-tx: #1f6c9f;
  --pale-green-bg: #edf3ec;
  --pale-green-tx: #346538;
  --pale-yellow-bg: #fbf3db;
  --pale-yellow-tx: #956400;

  --font-sans: 'Zen Kaku Gothic New', 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-serif: 'Shippori Mincho', 'Hiragino Mincho ProN', serif;
  --font-serif-latin: 'Instrument Serif', 'Shippori Mincho', serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  --max: 1120px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--ink-soft);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ページ全体に敷く、ノイズ入りの淡いグラデーション */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E"),
    radial-gradient(75% 55% at 12% -5%, rgba(210, 200, 182, 0.28), transparent 60%),
    radial-gradient(60% 45% at 95% 30%, rgba(196, 205, 214, 0.22), transparent 65%),
    radial-gradient(70% 50% at 40% 110%, rgba(214, 204, 190, 0.24), transparent 65%);
}

::selection { background: var(--ink); color: var(--bg); }

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
em { font-family: var(--font-serif-latin); font-style: italic; }
strong { font-weight: 700; color: var(--ink); }
code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-tint);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.05em 0.35em;
}

/* ---------- reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 600ms var(--ease-out),
    transform 600ms var(--ease-out);
  transition-delay: calc(var(--index, 0) * 80ms);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(251, 251, 250, 0.82);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 300ms;
}
.site-header.is-scrolled { border-bottom-color: var(--line); }

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 14px;
  height: 14px;
  border: 1.5px solid var(--ink);
  display: inline-block;
  position: relative;
}
.logo-mark::after {
  content: '';
  position: absolute;
  inset: 2.5px;
  background: var(--ink);
}
.logo-type {
  font-family: var(--font-serif-latin);
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.header-nav {
  display: flex;
  gap: 24px;
  margin-left: auto;
  font-size: 0.85rem;
  font-weight: 500;
}
.header-nav a { color: var(--muted); transition: color 200ms; }
.header-nav a:hover { color: var(--ink); }

/* ---------- buttons / tags ---------- */
.btn {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 12px 26px;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: background 200ms, border-color 200ms, transform 100ms;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #333; }
.btn-ghost { border-color: var(--line-strong); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-sm { padding: 8px 18px; font-size: 0.8rem; }

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero::before {
  /* ごく薄い環境光。無地のまま白飛びしないための一枚 */
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 50% at 70% 35%, rgba(120, 110, 90, 0.05), transparent 70%);
  pointer-events: none;
}
.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.hero::after {
  /* 見出し側の可読性を守る白スクリム（canvasの上・コンテンツの下） */
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--bg) 6%, rgba(251, 251, 250, 0.75) 32%, transparent 50%);
  pointer-events: none;
}
@media (max-width: 900px) {
  /* 狭い画面では3D線画を背景として弱める（本文の可読性を優先） */
  .hero-canvas { opacity: 0.4; }
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 140px 24px 96px;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 28px;
}
.hero-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.05rem, 5.8vw, 4.75rem);
  line-height: 1.22;
  letter-spacing: 0.01em;
  color: var(--ink);
  margin-bottom: 20px;
}
.hero-tagline {
  font-size: 1.35rem;
  color: var(--muted);
  margin-bottom: 28px;
}
.hero-lead {
  max-width: 34em;
  font-size: 1rem;
  color: var(--ink-soft);
  margin-bottom: 40px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 56px; }

/* 対応環境ストリップ */
.hero-stack { max-width: 560px; }
.hero-stack-caption {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.hero-stack-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
}
.hero-stack-list li {
  padding: 14px 16px 4px 0;
  border-right: 1px solid var(--line);
}
.hero-stack-list li:last-child { border-right: none; }
.hero-stack-list li + li { padding-left: 16px; }
.hero-stack-list strong {
  display: block;
  font-family: var(--font-serif-latin);
  font-weight: 400;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  color: var(--ink);
  white-space: nowrap;
}
.hero-stack-list span {
  display: block;
  font-size: 0.7rem;
  color: var(--muted);
  margin-top: 3px;
}
.hero-scrollhint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero-scrollhint::after {
  content: '';
  display: block;
  width: 1px;
  height: 28px;
  background: var(--line-strong);
  margin: 10px auto 0;
}

/* ---------- sections ---------- */
.section { padding: 128px 0; }
.section-tinted {
  /* 半透明にして body のノイズグラデーションを透かす */
  background: rgba(247, 246, 243, 0.6);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-inner { max-width: var(--max); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

.section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 56px;
}
.section-no {
  font-family: var(--font-serif-latin);
  font-size: 1.5rem;
  color: var(--ink);
}
.section-en {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}
.section-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 56px;
}

/* ---------- philosophy ---------- */
#philosophy { position: relative; overflow: hidden; }
#philosophy::before {
  /* 細い斜線のハッチング。右上から雲のように薄れていく */
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(115deg, var(--line-strong) 0 1px, transparent 1px 13px);
  -webkit-mask-image: radial-gradient(58% 70% at 84% 12%, rgba(0, 0, 0, 0.75), transparent 72%);
  mask-image: radial-gradient(58% 70% at 84% 12%, rgba(0, 0, 0, 0.75), transparent 72%);
  pointer-events: none;
}
#philosophy::after {
  /* 左下にもう一群、うんと薄く */
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(115deg, var(--line) 0 1px, transparent 1px 9px);
  -webkit-mask-image: radial-gradient(40% 45% at 6% 96%, rgba(0, 0, 0, 0.6), transparent 70%);
  mask-image: radial-gradient(40% 45% at 6% 96%, rgba(0, 0, 0, 0.6), transparent 70%);
  pointer-events: none;
}
.pull-quote {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(1.7rem, 4vw, 2.9rem);
  line-height: 1.55;
  color: var(--ink);
  margin-bottom: 72px;
}
.philosophy-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 4fr);
  gap: 72px;
}
.philosophy-lead { font-size: 1.05rem; line-height: 2; }
.term {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--pale-yellow-bg);
  color: var(--pale-yellow-tx);
  border-radius: 4px;
  padding: 0.1em 0.4em;
}
.philosophy-points li {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.philosophy-points li:first-child { border-top: 1px solid var(--line); }
.philosophy-points h3 { font-size: 1rem; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.philosophy-points p { font-size: 0.9rem; color: var(--muted); }

/* ---------- features bento（リキッドグラス） ---------- */
.section-glass {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  /* 中央にも淡い色だまりを敷き、どの位置でもガラスが色を拾えるようにする */
  background:
    radial-gradient(44% 38% at 58% 48%, rgba(214, 186, 132, 0.2), transparent 72%),
    radial-gradient(36% 32% at 22% 78%, rgba(150, 186, 214, 0.18), transparent 70%);
}
.section-glass::before,
.section-glass::after {
  /* ガラス越しに見える色面。ゆっくり漂う */
  content: '';
  position: absolute;
  width: 780px;
  height: 780px;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.section-glass::before {
  top: -180px;
  left: -140px;
  background:
    radial-gradient(closest-side, rgba(146, 196, 233, 0.65), transparent 70%),
    radial-gradient(closest-side at 70% 80%, rgba(232, 200, 130, 0.55), transparent 70%);
  animation: blob-drift 26s ease-in-out infinite alternate;
}
.section-glass::after {
  bottom: -220px;
  right: -160px;
  background:
    radial-gradient(closest-side, rgba(228, 168, 172, 0.6), transparent 70%),
    radial-gradient(closest-side at 30% 20%, rgba(164, 196, 168, 0.6), transparent 70%);
  animation: blob-drift 32s ease-in-out infinite alternate-reverse;
}
.section-glass .section-inner { z-index: 1; }
@keyframes blob-drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(120px, 60px, 0) scale(1.15); }
}
@media (prefers-reduced-motion: reduce) {
  .section-glass::before, .section-glass::after { animation: none; }
}

.bento {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.card {
  background: rgba(255, 255, 255, 0.42);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  backdrop-filter: blur(20px) saturate(1.3);
  border: 1px solid rgba(255, 255, 255, 0.7);
  outline: 1px solid rgba(17, 17, 17, 0.05);
  border-radius: 16px;
  padding: 32px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.85),
    0 8px 28px rgba(47, 52, 55, 0.05);
  transition: box-shadow 200ms, transform 200ms, background 200ms;
}
.card:hover {
  background: rgba(255, 255, 255, 0.62);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 14px 36px rgba(47, 52, 55, 0.08);
  transform: translateY(-2px);
}
.card-wide { grid-column: span 2; }
.card-full { grid-column: 1 / -1; }
.card-icon {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  outline: 1px solid rgba(17, 17, 17, 0.06);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--ink);
}
.card-icon svg { width: 20px; height: 20px; }
.card h3 { font-size: 1.05rem; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.card p { font-size: 0.9rem; color: var(--muted); }

/* ---------- workflow ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 48px;
  margin-bottom: 88px;
}
.step { border-top: 1px solid var(--ink); padding-top: 22px; }
.step-no {
  font-family: var(--font-serif-latin);
  font-size: 2rem;
  color: var(--ink);
  display: block;
  margin-bottom: 14px;
}
.step h3 { font-size: 1.05rem; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.step p { font-size: 0.9rem; color: var(--muted); }

/* ---------- editor mockup ---------- */
.editor-mock {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
}
.mock-chrome {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.mock-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--line-strong); }
.mock-title {
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
}
.mock-body {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) 220px;
  min-height: 380px;
}
.mock-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.mock-layers {
  border-right: 1px solid var(--line);
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-soft);
}
.mock-layers li { padding: 5px 0; }
.mock-layers ul ul { padding-left: 16px; }
.mock-selected-row {
  background: var(--bg-tint);
  outline: 1px solid var(--line-strong);
  border-radius: 4px;
  padding-left: 6px !important;
}
.mock-canvas {
  padding: 28px;
  background:
    linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 100% 28px,
    var(--bg-tint);
  display: flex;
  align-items: center;
}
.mock-page {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  width: 100%;
  padding: 16px;
  display: grid;
  gap: 12px;
}
.mock-bar { height: 14px; border: 1px solid var(--line); border-radius: 3px; }
.mock-block {
  position: relative;
  height: 110px;
  border: 1px solid var(--line);
  border-radius: 3px;
}
.mock-block-selected { outline: 1.5px solid var(--ink); outline-offset: 2px; }
.mock-block-selected::before,
.mock-block-selected::after {
  content: '';
  position: absolute;
  width: 6px;
  height: 6px;
  background: var(--surface);
  border: 1.5px solid var(--ink);
}
.mock-block-selected::before { top: -5px; left: -5px; }
.mock-block-selected::after { bottom: -5px; right: -5px; }
.mock-selection-label {
  position: absolute;
  top: -26px;
  left: -2px;
  background: var(--ink);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  padding: 3px 8px;
  border-radius: 3px;
  white-space: nowrap;
}
.mock-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.mock-cols div { height: 56px; border: 1px solid var(--line); border-radius: 3px; }
.mock-props {
  border-left: 1px solid var(--line);
  padding: 18px;
  font-size: 0.78rem;
}
.mock-prop {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}
.mock-value {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink);
  background: var(--bg-tint);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 2px 8px;
}
.mock-swatch { width: 16px; height: 16px; border-radius: 4px; background: var(--ink); }
.mock-prop-bp .mock-value { background: var(--pale-blue-bg); color: var(--pale-blue-tx); border-color: transparent; }

/* ---------- stack ---------- */
.stack-rows { border-top: 1px solid var(--ink); }
.stack-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 5fr) minmax(0, 6fr);
  gap: 40px;
  padding: 48px 0;
  border-bottom: 1px solid var(--line);
  transition: background 200ms;
}
.stack-row:hover { background: rgba(255, 255, 255, 0.55); }
.stack-row-no {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  padding-top: 16px;
}
.stack-row-name {
  font-family: var(--font-serif-latin);
  font-weight: 400;
  font-size: clamp(2.2rem, 4.6vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.stack-row-body p { font-size: 0.92rem; color: var(--muted); }
.stack-row-lead {
  font-size: 1.05rem !important;
  font-weight: 700;
  color: var(--ink) !important;
  margin-bottom: 10px;
}
/* 書き戻し先の列挙。ピルにせず、モノスペースの索引表記で */
.stack-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  margin-top: 20px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
}
.stack-chips::before {
  content: '書き戻し先';
  letter-spacing: 0.14em;
  margin-right: 18px;
  color: var(--ink-soft);
}
.stack-chips li + li::before {
  content: '/';
  margin: 0 10px;
  color: var(--line-strong);
}

/* Tailwind あり / なし 比較バナー */
.tw-banner {
  position: relative;
  margin-top: 64px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.55);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  overflow: hidden;
}
.tw-side { padding: 40px 44px; }
.tw-side:first-child { border-right: 1px solid var(--line); }
.tw-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--ink);
}
.tw-side pre {
  margin-top: 18px;
  padding: 18px 20px;
  background: var(--bg-tint);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--ink-soft);
  overflow-x: auto;
}
.tw-side mark {
  background: transparent;
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--ink);
  text-underline-offset: 4px;
}
.tw-side p { margin-top: 16px; font-size: 0.85rem; color: var(--muted); }
.tw-or {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  font-family: var(--font-serif-latin);
  font-style: italic;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--bg);
}

/* ---------- CTA ---------- */
.section-cta { padding: 160px 0; text-align: center; position: relative; }
.section-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(50% 60% at 50% 20%, rgba(120, 110, 90, 0.05), transparent 70%);
  pointer-events: none;
}
.cta-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2rem, 5vw, 3.4rem);
  color: var(--ink);
  margin-bottom: 24px;
}
.cta-lead { color: var(--muted); margin-bottom: 48px; }
.terminal {
  max-width: 520px;
  margin: 0 auto 24px;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  overflow: hidden;
}
.terminal-chrome {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.terminal pre {
  padding: 22px 24px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 2;
  color: var(--ink);
  overflow-x: auto;
}
.t-prompt { color: var(--muted); user-select: none; }
.cta-note { font-size: 0.8rem; color: var(--muted); }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--bg); }
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px 24px;
  display: flex;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
}
.footer-tagline { color: var(--muted); font-size: 0.95rem; margin-top: 6px; }
.footer-nav { display: flex; gap: 20px; margin-left: auto; font-size: 0.82rem; }
.footer-nav a { color: var(--muted); }
.footer-nav a:hover { color: var(--ink); }
.footer-copy { width: 100%; font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .section { padding: 96px 0; }
  .philosophy-grid { grid-template-columns: 1fr; gap: 40px; }
  .bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card-wide { grid-column: span 2; }
  .steps { grid-template-columns: 1fr; gap: 32px; margin-bottom: 64px; }
  .stack-row { grid-template-columns: 56px minmax(0, 1fr); gap: 8px 20px; padding: 36px 0; }
  .stack-row-body { grid-column: 1 / -1; margin-top: 14px; }
  .tw-banner { grid-template-columns: 1fr; }
  .tw-side { padding: 32px 28px; }
  .tw-side:first-child { border-right: none; border-bottom: 1px solid var(--line); }
  .mock-props { display: none; }
  .mock-body { grid-template-columns: 150px minmax(0, 1fr); }
}

@media (max-width: 600px) {
  .header-nav { display: none; }
  .hero-inner { padding: 120px 20px 80px; }
  .hero-scrollhint { display: none; }
  .section-inner { padding: 0 20px; }
  .hero-stack-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-stack-list li { border-right: none; padding: 12px 0 8px; }
  .hero-stack-list li + li { padding-left: 0; }
  .hero-stack-list li:nth-child(odd) { border-right: 1px solid var(--line); padding-right: 14px; }
  .hero-stack-list li:nth-child(even) { padding-left: 14px; }
  .hero-stack-list li:nth-child(n + 3) { border-top: 1px solid var(--line); }
  .bento { grid-template-columns: 1fr; }
  .card-wide { grid-column: auto; }
  .mock-layers { display: none; }
  .mock-body { grid-template-columns: 1fr; min-height: 0; }
  .footer-nav { margin-left: 0; }
}