/* DiffScope landing page
   Brand: primary blue #0EA5E9 / deep #0369A1, accent orange #F97316 / amber #FBBF24.
   Text colours are stepped per theme so every text/background pair meets WCAG AA. */

:root {
  --bg: #070b14;
  --bg-2: #0a101c;
  --surface: #0e1522;
  --surface-2: #141d2d;
  --border: rgba(148, 180, 230, 0.10);
  --border-strong: rgba(148, 180, 230, 0.18);
  --text: #eef2f8;
  --text-2: #b6c0d2;
  --muted: #8b95a8;
  --accent: #38bdf8;          /* sky, 9.2:1 on --bg */
  --accent-2: #fb923c;        /* orange, 8.7:1 on --bg */
  --accent-ink: #04121f;      /* text on --accent fills */
  --accent-soft: rgba(56, 189, 248, 0.12);
  --accent-2-soft: rgba(249, 115, 22, 0.13);
  --brand-blue: #38bdf8;
  --brand-orange: #fb923c;
  --green: #3fb950;
  --red: #f8665c;
  --amber: #fbbf24;
  --grad-blue: linear-gradient(100deg, #7dd3fc 0%, #38bdf8 45%, #0ea5e9 100%);
  --grad-orange: linear-gradient(100deg, #fb923c 0%, #f97316 50%, #fbbf24 100%);
  --grad-line: linear-gradient(90deg, transparent, #0ea5e9 25%, #f97316 75%, transparent);
  --btn-grad: linear-gradient(180deg, #fb923c 0%, #f97316 100%);
  --btn-ink: #1a0b02;         /* 6.8:1 or better on the orange button */
  --btn-ring: rgba(194, 65, 12, 0.55);
  --code-bg: #0a0f1a;
  --shadow-lg: 0 40px 120px -30px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(148, 180, 230, 0.08);
  --glow: rgba(14, 165, 233, 0.30);
  --glow-2: rgba(249, 115, 22, 0.20);
  --btn-glow: rgba(249, 115, 22, 0.40);
  --grid-line: rgba(148, 180, 230, 0.05);
  --nav-bg: rgba(7, 11, 20, 0.72);
  --radius: 14px;
  --radius-lg: 20px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #ffffff;
  --bg-2: #f5f8fc;
  --surface: #ffffff;
  --surface-2: #eff4fa;
  --border: rgba(15, 40, 80, 0.10);
  --border-strong: rgba(15, 40, 80, 0.17);
  --text: #0b1324;
  --text-2: #39445a;
  --muted: #5a6478;
  --accent: #0369a1;          /* 5.9:1 on white */
  --accent-2: #c2410c;        /* 5.2:1 on white */
  --accent-ink: #ffffff;
  --accent-soft: rgba(14, 165, 233, 0.10);
  --accent-2-soft: rgba(249, 115, 22, 0.10);
  --brand-blue: #0369a1;
  --brand-orange: #c2410c;
  --green: #1a7f37;
  --red: #cf222e;
  --amber: #9a6700;
  --grad-blue: linear-gradient(100deg, #0284c7 0%, #0369a1 100%);
  --grad-orange: linear-gradient(100deg, #ea580c 0%, #e2690a 55%, #d97706 100%);
  --btn-ring: rgba(194, 65, 12, 0.45);
  --code-bg: #0b1220;
  --shadow-lg: 0 40px 100px -30px rgba(3, 40, 80, 0.32), 0 0 0 1px rgba(15, 40, 80, 0.09);
  --glow: rgba(14, 165, 233, 0.20);
  --glow-2: rgba(249, 115, 22, 0.14);
  --btn-glow: rgba(249, 115, 22, 0.35);
  --grid-line: rgba(15, 40, 80, 0.05);
  --nav-bg: rgba(255, 255, 255, 0.78);
  color-scheme: light;
}

/* No JS: follow the OS preference */
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg: #ffffff; --bg-2: #f5f8fc; --surface: #ffffff; --surface-2: #eff4fa;
    --border: rgba(15, 40, 80, 0.10); --border-strong: rgba(15, 40, 80, 0.17);
    --text: #0b1324; --text-2: #39445a; --muted: #5a6478;
    --accent: #0369a1; --accent-2: #c2410c; --accent-ink: #ffffff;
    --accent-soft: rgba(14, 165, 233, 0.10); --accent-2-soft: rgba(249, 115, 22, 0.10);
    --brand-blue: #0369a1; --brand-orange: #c2410c;
    --green: #1a7f37; --red: #cf222e; --amber: #9a6700;
    --grad-blue: linear-gradient(100deg, #0284c7 0%, #0369a1 100%);
    --grad-orange: linear-gradient(100deg, #ea580c 0%, #e2690a 55%, #d97706 100%);
    --btn-ring: rgba(194, 65, 12, 0.45); --code-bg: #0b1220;
    --shadow-lg: 0 40px 100px -30px rgba(3, 40, 80, 0.32), 0 0 0 1px rgba(15, 40, 80, 0.09);
    --glow: rgba(14, 165, 233, 0.20); --glow-2: rgba(249, 115, 22, 0.14); --btn-glow: rgba(249, 115, 22, 0.35);
    --grid-line: rgba(15, 40, 80, 0.05); --nav-bg: rgba(255, 255, 255, 0.78);
    color-scheme: light;
  }
  :root:not([data-theme]) .shot-dark { display: none; }
  :root:not([data-theme]) .shot-light { display: block; }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "calt" 0;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
code, pre { font-family: var(--mono); }
:not(pre) > code {
  font-size: 0.86em;
  padding: 0.12em 0.4em;
  border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  white-space: nowrap;
}
strong { color: var(--text); font-weight: 600; }
h1, h2, h3 { margin: 0; letter-spacing: -0.02em; line-height: 1.15; text-wrap: balance; }
.section-sub, .lead { text-wrap: pretty; }
p { margin: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.ico {
  width: 18px; height: 18px; flex: none;
  fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}
.ico .fill, symbol .fill { fill: currentColor; stroke: none; }

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--accent); color: var(--accent-ink); padding: 10px 16px; border-radius: 10px; font-weight: 600;
}
.skip-link:focus { top: 12px; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 900px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font: inherit; font-weight: 600; font-size: 15px; line-height: 1;
  padding: 12px 18px; border-radius: 11px; border: 1px solid transparent;
  cursor: pointer; text-decoration: none !important; white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}
.btn-primary {
  color: var(--btn-ink);
  background: var(--btn-grad);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.35) inset, 0 8px 24px -8px var(--btn-glow), 0 0 0 1px var(--btn-ring);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 1px 0 rgba(255, 255, 255, 0.35) inset, 0 14px 34px -10px var(--btn-glow), 0 0 0 1px var(--btn-ring); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  color: var(--text);
  background: var(--surface);
  border-color: var(--border-strong);
}
.btn-ghost:hover { background: var(--surface-2); }
.btn-ghost .ico { transition: transform 0.2s ease; }
.btn-ghost:hover .ico { transform: translateX(3px); }
.btn-sm { padding: 9px 14px; font-size: 14px; border-radius: 10px; gap: 8px; }
.btn-sm .ico { width: 16px; height: 16px; }
.btn-lg { padding: 15px 24px; font-size: 16px; border-radius: 13px; }

.icon-btn {
  display: inline-grid; place-items: center;
  width: 38px; height: 38px; border-radius: 10px;
  background: transparent; color: var(--text-2);
  border: 1px solid var(--border); cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
}
.icon-btn:hover { background: var(--surface-2); color: var(--text); }

/* theme toggle icon */
.theme-toggle .ico-moon { display: none; }
:root[data-theme="light"] .theme-toggle .ico-sun { display: none; }
:root[data-theme="light"] .theme-toggle .ico-moon { display: block; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--nav-bg);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.nav.scrolled { border-bottom-color: var(--border); }
.nav-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--text); font-weight: 700; font-size: 16px; letter-spacing: -0.01em;
  text-decoration: none !important;
}
.brand img { width: auto; height: 26px; }
.brand-word { font-weight: 800; letter-spacing: -0.02em; }
.brand-word .b-diff { color: var(--brand-blue); }
.brand-word .b-scope { color: var(--brand-orange); }
.nav-links { display: flex; gap: 4px; margin-left: 12px; }
.nav-links a {
  color: var(--text-2); font-size: 14px; font-weight: 500;
  padding: 8px 12px; border-radius: 8px; text-decoration: none;
  transition: color 0.15s, background-color 0.15s;
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.menu-toggle { display: none; }

/* ---------- hero ---------- */
.hero { position: relative; padding: 88px 0 40px; overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(60% 50% at 50% 0%, var(--glow) 0%, transparent 70%),
    radial-gradient(30% 30% at 85% 20%, var(--glow-2) 0%, transparent 70%),
    linear-gradient(var(--grid-line) 1px, transparent 1px) 0 0 / 56px 56px,
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px) 0 0 / 56px 56px;
  -webkit-mask-image: radial-gradient(80% 60% at 50% 20%, #000 30%, transparent 85%);
  mask-image: radial-gradient(80% 60% at 50% 20%, #000 30%, transparent 85%);
  opacity: 0.9;
}
.hero-inner { text-align: center; display: flex; flex-direction: column; align-items: center; }
.pill {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 14px 6px 10px; border-radius: 999px;
  font-size: 13px; font-weight: 500; color: var(--text-2);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  border: 1px solid var(--border-strong);
}
.pill-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent-2) 22%, transparent);
}
.hero h1 {
  margin-top: 26px;
  font-size: clamp(34px, 7vw, 76px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.02;
}
.grad, .grad-blue {
  background: var(--grad-blue);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.grad-orange {
  background: var(--grad-orange);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.lead {
  margin-top: 22px; max-width: 640px;
  font-size: clamp(17px, 2vw, 20px); color: var(--text-2); line-height: 1.55;
}
.hero-cta { margin-top: 34px; display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.hero-meta {
  margin-top: 18px; display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
  gap: 4px 10px; font-size: 13.5px; color: var(--muted);
}
.hero-meta .sep { opacity: 0.6; }
.dl-count { display: inline-flex; gap: 10px; align-items: center; }
.dl-count[hidden] { display: none; }
.dl-count strong { color: var(--text-2); font-variant-numeric: tabular-nums; }

.hero-shot { position: relative; margin-top: 64px; width: 100%; max-width: 1180px; }
.hero-glow {
  position: absolute; inset: 8% 6% -4%; z-index: -1;
  background: radial-gradient(50% 50% at 50% 50%, var(--glow), transparent 70%),
              radial-gradient(40% 40% at 80% 70%, var(--glow-2), transparent 70%);
  filter: blur(40px);
}
.float-chip {
  position: absolute; display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px; border-radius: 12px;
  font-size: 13px; font-weight: 600; color: var(--text);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 20px 40px -16px rgba(0, 0, 0, 0.5);
}
.float-chip .mono { font-family: var(--mono); color: var(--green); }
.chip-a { left: -28px; top: 26%; }
.chip-b { right: -28px; bottom: 18%; }
.dot { width: 8px; height: 8px; border-radius: 50%; }
.dot-green { background: var(--green); box-shadow: 0 0 10px var(--green); }

/* ---------- window frame ---------- */
.window {
  margin: 0; border-radius: 14px; overflow: hidden;
  background: #1b1d23;
  box-shadow: var(--shadow-lg);
  position: relative;
}
:root[data-theme="light"] .window { background: #f3f4f6; }
.window::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.07);
}
.window-bar {
  display: flex; align-items: center; gap: 10px;
  height: 36px; padding: 0 14px;
  background: #15171c; border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: #9aa1b2; font-size: 12px;
}
:root[data-theme="light"] .window-bar { background: #e9ebef; border-bottom-color: rgba(15, 23, 42, 0.08); color: #4b5466; }
.window-bar img { width: auto; height: 13px; }
.window-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; text-align: left; }
.window-ctrls { display: inline-flex; gap: 18px; margin-left: auto; padding-left: 12px; }
.window-ctrls i { display: block; width: 10px; height: 10px; position: relative; }
.window-ctrls i:nth-child(1)::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; border-top: 1.4px solid currentColor; }
.window-ctrls i:nth-child(2) { border: 1.4px solid currentColor; border-radius: 1px; }
.window-ctrls i:nth-child(3)::before, .window-ctrls i:nth-child(3)::after {
  content: ""; position: absolute; left: 50%; top: -2px; height: 14px; border-left: 1.4px solid currentColor;
}
.window-ctrls i:nth-child(3)::before { transform: rotate(45deg); }
.window-ctrls i:nth-child(3)::after { transform: rotate(-45deg); }
.window-sm .window-bar { height: 30px; }
.window-sm .window-title { text-align: center; padding-right: 60px; }
.window-sm .window-ctrls { order: 2; margin-left: 0; }

.shot { position: relative; aspect-ratio: 1783 / 1080; background: inherit; }
.shot picture, .shot img { width: 100%; height: 100%; }
.shot img { object-fit: cover; object-position: top left; }
.shot-light { display: none; }
:root[data-theme="light"] .shot-dark { display: none; }
:root[data-theme="light"] .shot-light { display: block; }
.shot-crop { aspect-ratio: 1783 / 1080; }

/* ---------- stats ---------- */
.stats { padding: 40px 0 24px; }
.stats-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 0;
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--surface) 60%, transparent);
  overflow: hidden;
}
.stat { padding: 26px 20px; text-align: center; border-left: 1px solid var(--border); }
.stat:first-child { border-left: 0; }
.stat strong {
  display: block; font-size: 30px; font-weight: 700; letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.stat span { display: block; margin-top: 4px; color: var(--muted); font-size: 14px; }

/* ---------- sections ---------- */
.section { padding: 88px 0; position: relative; }
.section-tight { padding: 56px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.section h2 { font-size: clamp(30px, 4.4vw, 48px); font-weight: 700; letter-spacing: -0.035em; }
.section-sub { margin-top: 16px; font-size: 18px; color: var(--text-2); }

/* ---------- showcase tabs ---------- */
.showcase {
  border: 1px solid var(--border); border-radius: 24px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface) 80%, transparent), var(--bg-2));
  padding: 14px;
}
.tabs {
  display: flex; gap: 4px; padding: 4px; margin: 0 auto 14px; width: max-content; max-width: 100%;
  background: var(--bg); border: 1px solid var(--border); border-radius: 13px;
  overflow-x: auto; scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  display: inline-flex; align-items: center; gap: 8px;
  font: inherit; font-size: 14px; font-weight: 600; color: var(--muted);
  padding: 9px 16px; border-radius: 9px; border: 0; background: transparent; cursor: pointer;
  white-space: nowrap; transition: color 0.15s, background-color 0.15s;
}
.tab .ico { width: 16px; height: 16px; }
.tab:hover { color: var(--text); }
.tab[aria-selected="true"] {
  color: var(--text); background: var(--surface-2);
  box-shadow: 0 0 0 1px var(--border-strong), 0 4px 12px -4px rgba(0, 0, 0, 0.3);
}
.tab[aria-selected="true"] .ico { color: var(--accent); }
.panel { display: grid; gap: 32px; padding: 22px 18px 18px; }
.panel-copy { display: grid; grid-template-columns: 1fr 1.25fr; gap: 0 56px; align-items: start; padding: 0 14px; }
.panel-copy h3 { grid-column: 1; }
.panel-copy > p { grid-column: 1; }
.panel-copy .checks { grid-column: 2; grid-row: 1 / span 2; margin-top: 4px; grid-template-columns: 1fr 1fr; gap: 14px 28px; }
.panel[hidden] { display: none; }
.panel:focus-visible { outline-offset: -2px; border-radius: 16px; }
.panel.is-entering .window, .panel.is-entering .panel-copy { animation: fadeUp 0.45s ease both; }
.panel.is-entering .panel-copy { animation-delay: 0.04s; }
.panel-copy h3 { font-size: 26px; font-weight: 700; letter-spacing: -0.025em; }
.panel-copy > p { margin-top: 12px; color: var(--text-2); font-size: 16px; }

.checks { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 12px; }
.checks li { position: relative; padding-left: 30px; color: var(--text-2); font-size: 15px; line-height: 1.5; }
.checks li::before {
  content: ""; position: absolute; left: 0; top: 2px; width: 20px; height: 20px; border-radius: 6px;
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
}
.checks li::after {
  content: ""; position: absolute; left: 7px; top: 6px; width: 5px; height: 9px;
  border: solid var(--accent); border-width: 0 2px 2px 0; transform: rotate(45deg);
}

/* ---------- bento ---------- */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card {
  position: relative; padding: 28px; border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  border: 1px solid var(--border);
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.card::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), var(--accent-soft), transparent 60%);
  transition: opacity 0.3s ease;
}
.card:hover { border-color: var(--border-strong); }
.card:hover::before { opacity: 1; }
.card-wide { grid-column: span 2; }
.card-icon {
  width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center;
  color: var(--accent); background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  margin-bottom: 20px;
}
.card-icon .ico { width: 20px; height: 20px; }
.card h3 { font-size: 18px; font-weight: 650; letter-spacing: -0.015em; }
.card p { margin-top: 8px; color: var(--text-2); font-size: 15px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.chips span {
  font-size: 13px; font-weight: 500; padding: 6px 12px; border-radius: 999px;
  color: var(--text-2); background: var(--surface-2); border: 1px solid var(--border-strong);
}
.chips span::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--green); margin-right: 8px; vertical-align: 2px; }
.kbd-list { display: grid; gap: 8px; margin-top: 18px; font-size: 13.5px; color: var(--muted); }
kbd {
  display: inline-block; min-width: 22px; padding: 2px 6px; margin: 0 1px; text-align: center;
  font-family: var(--mono); font-size: 12px; line-height: 1.4; color: var(--text);
  background: var(--surface-2); border: 1px solid var(--border-strong); border-bottom-width: 2px; border-radius: 6px;
}
.syntax-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.syntax-chips code {
  font-size: 13px !important; padding: 6px 10px !important; border-radius: 8px !important;
  color: var(--accent) !important; background: var(--accent-soft) !important;
  border-color: color-mix(in srgb, var(--accent) 22%, transparent) !important;
}

/* ---------- split layout ---------- */
.split { display: grid; grid-template-columns: 1fr 1.15fr; gap: 64px; align-items: center; }
.split-copy h2 { font-size: clamp(30px, 4vw, 44px); }
.split-copy .checks { margin-top: 28px; }
.split-code { display: grid; gap: 16px; min-width: 0; }
.split-rev .split-copy { order: 2; }
.split-rev .split-code { order: 1; }

/* ---------- code blocks ---------- */
.code {
  border-radius: 13px; overflow: hidden;
  background: var(--code-bg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 50px -24px rgba(0, 0, 0, 0.6);
  min-width: 0;
}
.code-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 8px 8px 8px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(255, 255, 255, 0.025);
  font-size: 12.5px; color: #8e96a8; font-weight: 500;
}
.code pre {
  margin: 0; padding: 16px 18px; overflow-x: auto;
  font-size: 13.5px; line-height: 1.7; color: #dfe4ee;
  tab-size: 4;
  white-space: pre-wrap; overflow-wrap: anywhere;
  scrollbar-width: thin; scrollbar-color: rgba(255,255,255,.18) transparent;
}
.code pre.wrap { white-space: pre-wrap; word-break: break-all; }
.code pre code { font-family: var(--mono); background: none; border: 0; padding: 0; color: inherit; white-space: inherit; font-size: inherit; }
.code .c { color: #7f8aa0; }
.code-tall pre { font-size: 13px; }
.copy {
  display: inline-flex; align-items: center; gap: 6px;
  font: inherit; font-size: 12.5px; font-weight: 600; color: #c4cad6;
  background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 5px 10px; border-radius: 8px; cursor: pointer;
  transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}
.copy .ico { width: 14px; height: 14px; }
.copy:hover { background: rgba(255, 255, 255, 0.1); color: #fff; }
.copy.copied { color: #56d364; border-color: rgba(86, 211, 100, 0.4); background: rgba(86, 211, 100, 0.1); }

/* ---------- quick start ---------- */
.steps {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: stretch;
}
.step {
  position: relative; padding: 28px; border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  border: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 14px; min-width: 0;
}
.step > p { color: var(--text-2); font-size: 15px; }
.step :not(pre) > code, .qs-config :not(pre) > code { white-space: normal; overflow-wrap: anywhere; }
.step .btn, .step .mini-menu { align-self: flex-start; margin-top: auto; }
.step-num {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  font-weight: 700; font-size: 15px; color: var(--btn-ink);
  background: var(--btn-grad);
  box-shadow: 0 6px 18px -6px var(--btn-glow), 0 0 0 1px var(--btn-ring);
}
.step h3 { font-size: 19px; font-weight: 650; }
.step .code pre { font-size: 12.5px; }
.note { font-size: 14px; color: var(--muted); }
.qs-config {
  margin-top: 16px; padding: 28px; border-radius: var(--radius-lg);
  border: 1px solid var(--border); background: var(--bg-2);
}
.qs-config-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 24px; margin-bottom: 18px; }
.qs-config-head h3 { font-size: 17px; font-weight: 650; }
.qs-config-head p { color: var(--muted); font-size: 14px; }
.qs-codes { display: grid; grid-template-columns: 1fr 1.35fr; gap: 16px; align-items: start; }
.qs-codes pre { font-size: 12.5px; }
.mini-menu {
  display: inline-flex; align-items: center; gap: 8px; align-self: flex-start;
  padding: 8px 12px; border-radius: 10px; font-size: 13px; font-weight: 500;
  background: var(--surface-2); border: 1px solid var(--border-strong); color: var(--text-2);
}
.mm-arrow { color: var(--muted); }
.mm-hi { background: var(--accent); color: var(--accent-ink); padding: 2px 10px; border-radius: 6px; }

/* ---------- exit codes ---------- */
.exit-codes { margin: 28px 0 20px; display: grid; gap: 12px; }
.exit-codes div { display: flex; align-items: center; gap: 14px; }
.exit-codes dt { margin: 0; }
.exit-codes dd { margin: 0; color: var(--text-2); font-size: 15px; }
.code-pill {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
  font-family: var(--mono); font-weight: 600; font-size: 15px;
}
.code-pill.ok { color: var(--green); background: color-mix(in srgb, var(--green) 14%, transparent); border: 1px solid color-mix(in srgb, var(--green) 35%, transparent); }
.code-pill.warn { color: var(--amber); background: color-mix(in srgb, var(--amber) 14%, transparent); border: 1px solid color-mix(in srgb, var(--amber) 35%, transparent); }
.code-pill.err { color: var(--red); background: color-mix(in srgb, var(--red) 12%, transparent); border: 1px solid color-mix(in srgb, var(--red) 35%, transparent); }

/* ---------- quality ---------- */
.quality { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.q-card {
  padding: 32px 28px; border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background:
    radial-gradient(120% 80% at 0% 0%, var(--accent-soft), transparent 60%),
    var(--surface);
}
.q-num {
  font-size: 48px; font-weight: 800; letter-spacing: -0.04em; line-height: 1;
  background: var(--grad-blue); -webkit-background-clip: text; background-clip: text; color: transparent;
  font-variant-numeric: tabular-nums;
}
.q-card h3 { margin-top: 18px; font-size: 18px; font-weight: 650; }
.q-card p { margin-top: 8px; color: var(--text-2); font-size: 15px; }

/* ---------- comparison table ---------- */
.table-wrap {
  border: 1px solid var(--border); border-radius: var(--radius-lg); overflow-x: auto;
  background: var(--surface);
}
.cmp { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 560px; }
.cmp th, .cmp td { padding: 15px 20px; text-align: left; border-top: 1px solid var(--border); }
.cmp thead th {
  border-top: 0; font-size: 14px; font-weight: 600; color: var(--muted); background: var(--bg-2);
}
.cmp tbody th { font-weight: 500; color: var(--text); }
.cmp td { color: var(--muted); width: 24%; }
.cmp .us { text-align: center; background: color-mix(in srgb, var(--accent) 6%, transparent); }
.cmp thead .us { color: var(--accent); }
.cmp tbody tr:hover th, .cmp tbody tr:hover td { background-color: color-mix(in srgb, var(--accent) 4%, transparent); }
.yes {
  display: inline-grid; place-items: center; width: 24px; height: 24px; border-radius: 50%;
  background: color-mix(in srgb, var(--green) 16%, transparent);
  vertical-align: middle; position: relative;
}
.yes::after {
  content: ""; width: 5px; height: 10px; margin-top: -2px;
  border: solid var(--green); border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.tag { white-space: nowrap;
  display: inline-block; font-size: 12.5px; font-weight: 600; padding: 3px 10px; border-radius: 999px;
  color: var(--text-2); background: var(--surface-2); border: 1px solid var(--border-strong);
}

/* ---------- roadmap ---------- */
.roadmap {
  display: grid; grid-template-columns: 1fr 1.3fr; gap: 40px; align-items: center;
  padding: 44px; border-radius: 24px;
  border: 1px dashed var(--border-strong);
  background: var(--bg-2);
}
.roadmap h2 { font-size: clamp(26px, 3.4vw, 36px); }
.roadmap .section-sub { font-size: 16px; }
.roadmap-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.roadmap-list li {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 16px; border-radius: 999px; font-size: 14.5px; font-weight: 500;
  background: var(--surface); border: 1px solid var(--border-strong); color: var(--text-2);
}
.roadmap-list li::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  border: 1.5px solid var(--accent);
}

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--border); }
.faq details { border-bottom: 1px solid var(--border); }
.faq summary {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 22px 4px; cursor: pointer; list-style: none;
  font-size: 17px; font-weight: 600; color: var(--text);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .ico { color: var(--muted); transition: transform 0.25s ease; }
.faq details[open] summary .ico { transform: rotate(180deg); color: var(--accent); }
.faq summary:hover { color: var(--accent); }
.faq-body { padding: 0 4px 24px; display: grid; gap: 14px; color: var(--text-2); font-size: 15.5px; max-width: 760px; }
.faq-body .code pre { font-size: 13px; }

/* ---------- final CTA ---------- */
.final-cta { padding: 40px 0 120px; }
.cta-card {
  position: relative; overflow: hidden; text-align: center;
  padding: 80px 24px; border-radius: 28px;
  border: 1px solid var(--border-strong);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  display: flex; flex-direction: column; align-items: center;
}
.cta-glow {
  position: absolute; inset: auto -10% -60% -10%; height: 120%; pointer-events: none;
  background: radial-gradient(50% 50% at 50% 50%, var(--glow), transparent 70%),
              radial-gradient(30% 40% at 75% 40%, var(--glow-2), transparent 70%);
  filter: blur(30px);
}
.cta-card > *:not(.cta-glow) { position: relative; }
.cta-logo { width: auto; height: 96px; filter: drop-shadow(0 18px 36px var(--glow)); }
.cta-card h2 { margin-top: 28px; font-size: clamp(30px, 4.6vw, 52px); font-weight: 800; letter-spacing: -0.04em; }
.cta-card > p { margin-top: 14px; color: var(--text-2); font-size: 18px; }
.cta-card .btn { margin-top: 32px; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 56px 0 32px; background: var(--bg-2); }
.footer-inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer-brand p { margin-top: 12px; color: var(--muted); font-size: 14px; max-width: 320px; }
.footer-links { display: flex; gap: 64px; }
.footer-links h2 { font-size: 13px; font-weight: 600; color: var(--text); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 12px; }
.footer-links a { display: block; color: var(--muted); font-size: 14px; padding: 4px 0; }
.footer-links a:hover { color: var(--text); }
.footer-bottom {
  margin-top: 40px;
  padding-top: 24px;
  background: linear-gradient(var(--border), var(--border)) top center / calc(100% - 48px) 1px no-repeat;
  display: flex; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap;
  font-size: 13px; color: var(--muted);
}
.released[hidden] { display: none; }

/* ---------- reveal animation ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s cubic-bezier(.2,.7,.2,1), transform 0.7s cubic-bezier(.2,.7,.2,1); }
.js .reveal.in { opacity: 1; transform: none; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

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

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .chip-a { left: 12px; top: auto; bottom: -18px; }
  .chip-b { right: 12px; bottom: -18px; }
  .panel { gap: 28px; padding: 22px 12px 12px; }
  .panel-copy { grid-template-columns: 1fr; padding: 0 6px; }
  .panel-copy .checks { grid-column: 1; grid-row: auto; margin-top: 20px; }
  .qs-codes { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .nav-links {
    display: none; position: absolute; left: 0; right: 0; top: 64px;
    flex-direction: column; gap: 2px; margin: 0; padding: 10px 16px 16px;
    background: var(--bg); border-bottom: 1px solid var(--border);
    box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.5);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px; font-size: 16px; }
  .menu-toggle { display: inline-grid; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  .stat:nth-child(4) { border-left: 0; }
  .stat:nth-child(n+4) { border-top: 1px solid var(--border); }
  .bento { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .split-rev .split-copy, .split-rev .split-code { order: 0; }
  .quality { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .roadmap { grid-template-columns: 1fr; padding: 32px 24px; gap: 24px; }
  .section { padding: 88px 0; }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .nav-inner { gap: 12px; }
  .brand span { font-size: 15px; }
  .nav .btn-sm span { display: none; }
  .nav .btn-sm { padding: 9px 11px; }
  .hero { padding: 56px 0 24px; }
  .hero h1 { margin-top: 20px; }
  .hero-cta { width: 100%; }
  .hero-cta .btn { width: 100%; }
  .hero-shot { margin-top: 44px; }
  .hero-meta { gap: 4px 14px; }
  .hero-meta .sep { display: none; }
  .dl-count { gap: 14px; }
  .window-bar { height: 28px; font-size: 11px; padding: 0 10px; }
  .window-ctrls { gap: 12px; }
  .window-ctrls i { width: 8px; height: 8px; }
  .window-ctrls i:nth-child(3)::before, .window-ctrls i:nth-child(3)::after { height: 11px; top: -1.5px; }
  .float-chip { font-size: 11.5px; padding: 7px 10px; }
  .chip-a { display: none; }
  .chip-b { right: 50%; transform: translateX(50%); bottom: -20px; white-space: nowrap; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat { padding: 20px 12px; }
  .stat strong { font-size: 24px; }
  .stat:nth-child(n) { border-left: 1px solid var(--border); border-top: 1px solid var(--border); }
  .stat:nth-child(odd) { border-left: 0; }
  .stat:nth-child(-n+2) { border-top: 0; }
  .stat:last-child { grid-column: 1 / -1; border-left: 0; }
  .section { padding: 72px 0; }
  .section-tight { padding: 48px 0; }
  .section-head { margin-bottom: 36px; }
  .section-sub { font-size: 16px; }
  .showcase { padding: 8px; border-radius: 18px; }
  .tabs { width: 100%; }
  .tab { padding: 8px 12px; font-size: 13px; flex: 1 0 auto; justify-content: center; }
  .tab .ico { display: none; }
  .panel { padding: 18px 6px 6px; }
  .panel-copy { padding: 0; }
  .panel-copy .checks { grid-template-columns: 1fr; }
  .panel-copy h3 { font-size: 22px; }
  .bento { grid-template-columns: 1fr; }
  .card-wide { grid-column: auto; }
  .card { padding: 22px; }
  .steps { grid-template-columns: 1fr; }
  .qs-config { padding: 18px; }
  .step { padding: 22px; }
  .code pre { font-size: 12.5px; padding: 14px; }
  .cta-card { padding: 56px 20px; border-radius: 22px; }
  .footer-links { gap: 40px; }
  .faq summary { font-size: 16px; padding: 18px 2px; }
  .footer-bottom { background-size: calc(100% - 32px) 1px; }
  .cmp { min-width: 0; font-size: 14px; }
  .cmp th, .cmp td { padding: 12px 10px; }
  .cmp thead th { font-size: 12.5px; }
  .cmp td { width: auto; }
  .cmp td:last-child { font-size: 13px; }
}

/* ---------- brand accents ---------- */
.footer-brand .tagline {
  margin-top: 14px; font-size: 12px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--text-2);
}
.footer-brand .tagline + p { margin-top: 6px; }
.cta-card::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px; pointer-events: none;
  background: var(--grad-line);
}
.nav.scrolled::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; pointer-events: none;
  background: var(--grad-line); opacity: 0.55;
}
/* two-tone brand rhythm: every other feature icon / quality number in orange */
.bento .card:nth-child(even) .card-icon {
  color: var(--accent-2); background: var(--accent-2-soft);
  border-color: color-mix(in srgb, var(--accent-2) 28%, transparent);
}
.quality .q-card:nth-child(2) .q-num { background: var(--grad-orange); -webkit-background-clip: text; background-clip: text; }
.quality .q-card:nth-child(2) { background: radial-gradient(120% 80% at 0% 0%, var(--accent-2-soft), transparent 60%), var(--surface); }