/*
 * Log Commander – product site. One stylesheet for all pages, no web fonts, no external requests.
 * Colours are the app's own tokens (src/styles.css): the page reads like the log it is about –
 * every section is an entry with a line number and a level, the bar at the right edge is an
 * overview ruler of the page.
 */

/* ───────────── Tokens ───────────── */
:root {
  color-scheme: dark;
  --bg: #0f1216;
  --bg-app: #14171c;
  --panel: #1b1f26;
  --raised: #252a33;
  --hover: #2b313c;
  --border: #2e343f;
  --text: #e3e7ec;
  --dim: #98a2b0;
  --faint: #5d6675;
  --accent: #5aa2f7;
  --accent-ink: #0d1117;

  --trace: #8b95a3;
  --debug: #6cc4d8;
  --info: #4cc38a;
  --warn: #f0a94b;
  --error: #ff6b6b;
  --fatal: #e879f9;
  --warn-bg: #2a2217;
  --error-bg: #2c1719;
  --fatal-bg: #b3261e;
  --num: #b9a3f0;
  --str: #9ccc8a;
  --url: #7fb4f5;
  --hit-bg: #e8b100;
  --hit-ink: #14171c;
  --win-shadow: 0 50px 100px -30px rgb(0 0 0 / 75%), 0 20px 40px -20px rgb(0 0 0 / 60%);
  --glow: rgb(90 162 247 / 14%);

  --mono: ui-monospace, 'SF Mono', SFMono-Regular, 'JetBrains Mono', Menlo, Consolas, 'DejaVu Sans Mono', monospace;
  --sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --gutter: clamp(16px, 4vw, 48px);
  --max: 1240px;
  --nav-h: 60px;
}
@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #f4f5f7;
    --bg-app: #fbfbfc;
    --panel: #f1f2f4;
    --raised: #ffffff;
    --hover: #e4e6ea;
    --border: #d3d7dd;
    --text: #1a222b;
    --dim: #55606e;
    --faint: #8c95a1;
    --accent: #1a66d6;
    --accent-ink: #ffffff;
    --trace: #5f6b7a;
    --debug: #0b6e8c;
    --info: #0f7a4a;
    --warn: #8a5300;
    --error: #c21d1d;
    --fatal: #a21caf;
    --warn-bg: #fdf3e1;
    --error-bg: #fdecec;
    --num: #6236b5;
    --str: #2c6e1d;
    --url: #1a5fc4;
    --hit-bg: #ffe28a;
    --hit-ink: #3d2f00;
    --win-shadow: 0 50px 90px -40px rgb(20 30 50 / 35%), 0 16px 30px -18px rgb(20 30 50 / 25%);
    --glow: rgb(26 102 214 / 10%);
  }
}

/* ───────────── Base ───────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 24px); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  counter-reset: entry;
}
img, svg, canvas { display: block; max-width: 100%; }
img { height: auto; }
a { color: var(--accent); text-underline-offset: 0.18em; }
p { margin: 0 0 1em; text-wrap: pretty; }
h1, h2, h3 { margin: 0; line-height: 1.08; letter-spacing: -0.03em; font-weight: 680; text-wrap: balance; }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.wrap { width: min(100% - 2 * var(--gutter), var(--max)); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--accent); color: var(--accent-ink); padding: 8px 12px; border-radius: 6px; }
.skip:focus { left: 8px; }
code, kbd, .mono { font-family: var(--mono); }
code { font-size: 0.88em; background: var(--raised); border: 1px solid var(--border); border-radius: 4px; padding: 0.08em 0.36em; }
kbd {
  display: inline-block; font: 600 0.78em/1 var(--mono); padding: 0.36em 0.5em 0.3em; white-space: nowrap;
  color: var(--text); background: var(--raised); border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 5px;
}

/* the page's backdrop: a faint grid of log rows */
body::before {
  content: ''; position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.5;
  background: repeating-linear-gradient(to bottom, transparent 0 23px, color-mix(in srgb, var(--border) 28%, transparent) 23px 24px);
  mask-image: radial-gradient(120% 70% at 50% 0%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(120% 70% at 50% 0%, #000 0%, transparent 75%);
}

/* ───────────── Type ───────────── */
.eyebrow {
  display: flex; align-items: center; gap: 10px; margin: 0 0 20px;
  font: 500 13px/1 var(--mono); color: var(--dim); letter-spacing: 0.02em;
}
.eyebrow::before { counter-increment: entry; content: counter(entry, decimal-leading-zero); color: var(--faint); min-width: 2ch; }
.lv { font: 700 12px/1 var(--mono); padding: 5px 7px 4px; border-radius: 4px; border: 1px solid currentColor; letter-spacing: 0.04em; }
.lv-trace { color: var(--trace); } .lv-debug { color: var(--debug); } .lv-info { color: var(--info); }
.lv-warn { color: var(--warn); } .lv-error { color: var(--error); } .lv-fatal { color: var(--fatal); }
.h1 { font-size: clamp(44px, 8.2vw, 116px); line-height: 0.94; letter-spacing: -0.05em; }
.h2 { font-size: clamp(34px, 5.2vw, 68px); }
.h3 { font-size: clamp(22px, 2.4vw, 30px); letter-spacing: -0.02em; }
.lead { font-size: clamp(18px, 1.7vw, 22px); line-height: 1.5; color: var(--dim); max-width: 46ch; margin: 22px 0 0; }
.lead b, .lead strong { color: var(--text); font-weight: 600; }
.accent { color: var(--accent); }
.c-info { color: var(--info); } .c-warn { color: var(--warn); } .c-error { color: var(--error); } .c-fatal { color: var(--fatal); } .c-debug { color: var(--debug); }

/* ───────────── Motion ───────────── */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); transition-delay: calc(var(--d, 0) * 80ms); }
.js .reveal.in { opacity: 1; transform: none; }
.js .split .w { display: inline-block; overflow: clip; vertical-align: bottom; padding-bottom: 0.12em; margin-bottom: -0.12em; }
.js .split .w > span { display: inline-block; transform: translateY(105%); transition: transform 0.9s var(--ease); transition-delay: calc(var(--i) * 45ms); }
.js .split.in .w > span { transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal, .js .split .w > span { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}

/* ───────────── Buttons ───────────── */
.btn {
  display: inline-flex; align-items: center; gap: 10px; height: 50px; padding: 0 22px; border-radius: 10px;
  font: 650 16px/1 var(--sans); text-decoration: none; white-space: nowrap;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), background 0.2s, border-color 0.2s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(1px) scale(0.985); }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 10px 30px -10px var(--accent); }
.btn-ghost { color: var(--text); border: 1px solid var(--border); background: color-mix(in srgb, var(--panel) 70%, transparent); }
.btn-ghost:hover { border-color: var(--dim); }
.btn svg { width: 18px; height: 18px; }
.btn-sm { height: 36px; padding: 0 14px; font-size: 14px; border-radius: 8px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.note { margin: 18px 0 0; font: 400 13px/1.5 var(--mono); color: var(--faint); }
.more { display: inline-flex; align-items: center; gap: 8px; margin-top: 22px; font: 600 15px/1 var(--mono); text-decoration: none; }
.more::after { content: '→'; transition: transform 0.3s var(--ease); }
.more:hover::after { transform: translateX(5px); }

/* ───────────── Nav ───────────── */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; transition: background 0.3s, box-shadow 0.3s; }
.nav.scrolled { background: color-mix(in srgb, var(--bg) 80%, transparent); backdrop-filter: saturate(1.5) blur(16px); -webkit-backdrop-filter: saturate(1.5) blur(16px); box-shadow: 0 1px 0 var(--border); }
.nav-in { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font: 680 17px/1 var(--sans); letter-spacing: -0.02em; white-space: nowrap; }
.brand img { width: 30px; height: 30px; }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a:not(.btn) { color: var(--dim); text-decoration: none; font-size: 15px; padding: 8px 11px; border-radius: 8px; transition: color 0.2s, background 0.2s; }
.nav-links a:not(.btn):hover, .nav-links a[aria-current] { color: var(--text); background: color-mix(in srgb, var(--hover) 70%, transparent); }
.nav-links .btn { margin-left: 8px; }
@media (max-width: 820px) {
  .nav-in { flex-wrap: nowrap; }
  .nav-links { overflow-x: auto; scrollbar-width: none; }
  .nav-links a:not(.btn) { padding: 8px 8px; font-size: 14px; }
  .nav-links .gh { display: none; }
  .brand span { display: none; }
}
.nav-links a { white-space: nowrap; }
@media (max-width: 480px) {
  .nav-links a[href='keyboard.html'] { display: none; }
  .nav-in { gap: 8px; }
  .nav-links a:not(.btn) { padding: 8px 6px; font-size: 13.5px; }
  .nav-links .btn { margin-left: 4px; padding: 0 10px; font-size: 13px; }
}

/* ───────────── Page ruler (right edge) ───────────── */
.pruler { position: fixed; top: var(--nav-h); right: 0; bottom: 0; width: 14px; z-index: 40; background: color-mix(in srgb, var(--panel) 80%, transparent); border-left: 1px solid var(--border); }
.pruler i { position: absolute; top: 0; height: var(--h, 40px); left: 0; right: 0; background: color-mix(in srgb, var(--dim) 28%, transparent); border-block: 1px solid var(--dim); transform: translateY(var(--y, 0)); will-change: transform; }
.pruler a { position: absolute; left: 2px; width: 6px; height: 12px; border-radius: 1px; background: var(--c, var(--info)); }
.pruler a[data-lv='warn'] { left: auto; right: 2px; --c: var(--warn); }
.pruler a[data-lv='error'] { --c: var(--error); }
.pruler a[data-lv='fatal'] { --c: var(--fatal); }
.pruler a[data-lv='debug'] { --c: var(--debug); }
.pruler a:hover { width: 10px; }
@media (max-width: 900px), (pointer: coarse) { .pruler { display: none; } }

/* ───────────── Sections ───────────── */
main { display: block; }
.sec { padding: clamp(72px, 11vw, 150px) 0; position: relative; }
.sec-tight { padding: clamp(48px, 7vw, 90px) 0; }
.sec-line { border-top: 1px solid var(--border); }
.center { text-align: center; }
.center .eyebrow { justify-content: center; }
.center .lead { margin-inline: auto; }

/* ───────────── Window frame ───────────── */
.win { margin: 0; border-radius: 12px; background: var(--bg-app); border: 1px solid var(--border); box-shadow: var(--win-shadow); overflow: hidden; }
.win-bar { display: flex; align-items: center; gap: 7px; height: 34px; padding: 0 13px; background: var(--panel); border-bottom: 1px solid var(--border); font: 500 12px/1 var(--mono); color: var(--dim); }
.win-bar i { width: 11px; height: 11px; border-radius: 50%; background: var(--border); }
.win-bar span { margin-inline: auto; transform: translateX(-27px); }
.win img { width: 100%; cursor: zoom-in; }
.win figcaption { padding: 10px 14px; font: 400 13px/1.45 var(--mono); color: var(--dim); border-top: 1px solid var(--border); background: var(--panel); }

/* ───────────── Hero ───────────── */
.hero { padding: calc(var(--nav-h) + clamp(36px, 5.5vw, 70px)) 0 0; position: relative; }
.hero::before {
  content: ''; position: absolute; inset: 0 0 auto; height: 900px; pointer-events: none; z-index: -1;
  background:
    radial-gradient(50% 45% at 78% 18%, color-mix(in srgb, var(--accent) 20%, transparent), transparent 70%),
    radial-gradient(40% 40% at 12% 8%, color-mix(in srgb, var(--info) 12%, transparent), transparent 70%);
}
.hero .lead { max-width: 52ch; }
.hero-stage { margin-top: clamp(36px, 4.5vw, 60px); perspective: 1800px; }
.hero-stage .win { transform-origin: 50% 0; transform: rotateX(calc(var(--tilt, 0) * 9deg)) scale(calc(1 - var(--tilt, 0) * 0.05)); will-change: transform; }
.demo-hint { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin: 16px 2px 0; font: 400 13px/1.5 var(--mono); color: var(--faint); }
.demo-hint b { color: var(--dim); font-weight: 500; }
.sub-hero { padding: calc(var(--nav-h) + clamp(48px, 8vw, 100px)) 0 clamp(36px, 5vw, 60px); position: relative; }
.sub-hero::before { content: ''; position: absolute; inset: 0 0 auto; height: 620px; pointer-events: none; z-index: -1; background: radial-gradient(50% 55% at 80% 0%, color-mix(in srgb, var(--hue, var(--accent)) 18%, transparent), transparent 70%); }
.sub-hero .h1 { font-size: clamp(40px, 6.6vw, 92px); }

/* ───────────── Live demo ───────────── */
.demo { font: 400 13px/24px var(--mono); color: var(--text); background: var(--bg-app); user-select: none; -webkit-user-select: none; }
.demo-tabs { display: flex; align-items: stretch; height: 34px; background: var(--panel); border-bottom: 1px solid var(--border); color: var(--dim); font-family: var(--sans); font-size: 13px; }
.demo-tabs .dots { display: flex; align-items: center; gap: 7px; padding: 0 14px 0 13px; }
.demo-tabs .dots i { width: 11px; height: 11px; border-radius: 50%; background: var(--border); }
.demo-tabs span.tab { display: flex; align-items: center; gap: 8px; padding: 0 16px; border-right: 1px solid var(--border); }
.demo-tabs span.tab.on { background: var(--bg-app); color: var(--text); box-shadow: inset 0 2px 0 var(--accent); }
.demo-tabs .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--error); opacity: 0; transition: opacity 0.3s; }
.demo-tabs .dot.on { opacity: 1; }
.demo-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 9px 12px; border-bottom: 1px solid var(--border); background: var(--panel); }
.demo button, .demo input { font: inherit; color: inherit; }
.dbtn { height: 28px; padding: 0 11px; border-radius: 6px; border: 1px solid var(--border); background: var(--raised); cursor: pointer; font-family: var(--sans) !important; line-height: 1 !important; transition: background 0.15s, border-color 0.15s; }
.dbtn:hover { background: var(--hover); }
.dbtn[aria-pressed='true'] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.demo .chip.lv-trace { color: var(--trace); } .demo .chip.lv-debug { color: var(--debug); } .demo .chip.lv-info { color: var(--info); }
.demo .chip.lv-warn { color: var(--warn); } .demo .chip.lv-error { color: var(--error); } .demo .chip.lv-fatal { color: var(--fatal); }
.chip { height: 28px; padding: 0 9px; border-radius: 6px; border: 1px solid currentColor; background: transparent; cursor: pointer; line-height: 1 !important; font-size: 12px !important; display: inline-flex; align-items: center; gap: 8px; transition: opacity 0.2s, transform 0.2s var(--ease), background 0.2s; }
.chip b { font-weight: 500; font-variant-numeric: tabular-nums; min-width: 2ch; text-align: right; }
.chip[aria-pressed='false'] { opacity: 0.38; border-style: dashed; }
.chip:hover { background: color-mix(in srgb, currentColor 12%, transparent); }
.chip.bump { animation: bump 0.35s var(--ease); }
@keyframes bump { 30% { transform: scale(1.09); background: color-mix(in srgb, currentColor 22%, transparent); } }
.demo-search { flex: 1 1 180px; min-width: 120px; height: 28px; padding: 0 10px; border-radius: 6px; border: 1px solid var(--border); background: var(--bg-app); user-select: text; -webkit-user-select: text; }
.demo-search::placeholder { color: var(--faint); }
.demo-tl { width: 100%; height: 56px; border-bottom: 1px solid var(--border); background: var(--bg-app); }
.demo-body { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) 14px; height: 384px; }
.demo-rows { display: flex; flex-direction: column; justify-content: flex-end; overflow: hidden; contain: strict; }
.row { display: grid; grid-template-columns: 10ch 13ch 6ch 17ch 27ch minmax(0, 1fr); column-gap: 14px; height: 24px; flex: none; padding-right: 10px; white-space: nowrap; border-left: 3px solid transparent; overflow: hidden; }
.row > * { overflow: hidden; text-overflow: ellipsis; }
.row .ln { text-align: right; color: var(--faint); }
.row .tm { color: var(--trace); }
.row .lvl { font-weight: 700; }
.row .st { grid-column: 2 / -1; padding-left: 4ch; }
.row .st.head { padding-left: 0; }
.row.new { animation: rowin 0.22s var(--ease) both; }
@keyframes rowin { from { height: 0; opacity: 0; } }
.row.l-trace { color: var(--trace); }
.row.l-debug { color: var(--debug); }
.row.l-info { border-left-color: color-mix(in srgb, var(--info) 60%, transparent); }
.row.l-info .lvl { color: var(--info); }
.row.l-warn { color: var(--warn); background: var(--warn-bg); border-left-color: var(--warn); }
.row.l-error { color: var(--error); background: var(--error-bg); border-left-color: var(--error); }
.row.l-fatal { color: #fff; background: var(--fatal-bg); border-left-color: #ff8a80; font-weight: 700; }
.row.l-fatal .ln { color: var(--faint); background: var(--bg-app); font-weight: 400; }
.row .n { color: var(--num); }
.row.l-fatal .n, .row.l-fatal .tm { color: inherit; }
.row mark { background: var(--hit-bg); color: var(--hit-ink); border-radius: 2px; }
.demo-empty { position: absolute; inset: 0 14px 0 0; display: none; place-items: center; color: var(--faint); font-family: var(--sans); }
.demo-empty.on { display: grid; }
.demo-ruler { width: 14px; height: 100%; border-left: 1px solid var(--border); background: var(--panel); }
.demo-status { display: flex; align-items: center; gap: 18px; height: 30px; padding: 0 12px; border-top: 1px solid var(--border); background: var(--panel); color: var(--dim); font-family: var(--sans); font-size: 12.5px; white-space: nowrap; overflow: hidden; }
.demo-status .live { color: var(--text); display: inline-flex; align-items: center; gap: 7px; }
.demo-status .live::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--info); animation: pulse 2s infinite; }
.demo-status .live.frozen::before { background: var(--warn); animation: none; }
.demo-status .sp { margin-left: auto; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--info) 60%, transparent); } 70%, 100% { box-shadow: 0 0 0 8px transparent; } }
@media (max-width: 980px) { .row { grid-template-columns: 10ch 13ch 6ch 27ch minmax(0, 1fr); } .row .th { display: none; } }
@media (max-width: 720px) {
  .demo { font-size: 11.5px; }
  .row { grid-template-columns: 13ch 6ch minmax(0, 1fr); column-gap: 10px; padding-left: 8px; }
  .row .ln, .row .lg { display: none; }
  .row .st { grid-column: 1 / -1; padding-left: 2ch; }
  .demo-tabs span.tab:not(.on) { display: none; }
}

/* ───────────── Marquee ───────────── */
.marquee { overflow: hidden; border-block: 1px solid var(--border); padding: 18px 0; mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee ul { display: flex; gap: 0; margin: 0; padding: 0; list-style: none; width: max-content; animation: marquee 48s linear infinite; }
.marquee:hover ul { animation-play-state: paused; }
.marquee li { font: 500 15px/1 var(--mono); color: var(--dim); white-space: nowrap; padding: 0 22px; display: flex; align-items: center; gap: 44px; }
.marquee li::after { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--faint); margin-right: -22px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ───────────── Stats ───────────── */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; margin-top: 56px; }
.stat { background: var(--bg); padding: clamp(20px, 3vw, 36px); }
.stat b { display: block; font: 680 clamp(38px, 5.4vw, 76px) / 1 var(--sans); letter-spacing: -0.05em; font-variant-numeric: tabular-nums; }
.stat b small { font-size: 0.42em; font-weight: 600; letter-spacing: -0.01em; margin-left: 0.12em; color: var(--dim); }
.stat span { display: block; margin-top: 12px; font: 400 13px/1.45 var(--mono); color: var(--dim); }
@media (max-width: 860px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ───────────── Story (pinned screenshot, scrolling steps) ───────────── */
.story { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 8fr); gap: clamp(28px, 5vw, 80px); align-items: start; margin-top: 40px; }
.story-pin { position: sticky; top: calc(var(--nav-h) + 6vh); order: 2; height: calc(88vh - var(--nav-h)); display: grid; align-content: center; }
.story-pin .win { position: relative; }
.story-pin .stack { position: relative; aspect-ratio: 1600 / 877; }
.story-pin .stack img { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; transform: scale(1.03); transition: opacity 0.6s var(--ease), transform 1.2s var(--ease); }
.story-pin .stack img.on { opacity: 1; transform: none; }
.story-count { position: absolute; right: 14px; top: 9px; font: 500 12px/1 var(--mono); color: var(--dim); }
.step { min-height: 72vh; display: flex; flex-direction: column; justify-content: center; padding: 24px 0; opacity: 0.32; transition: opacity 0.5s; }
.step.on { opacity: 1; }
.step h3 { font-size: clamp(26px, 3vw, 40px); margin-bottom: 14px; }
.step p { color: var(--dim); max-width: 44ch; }
.step .keys { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.step .win { display: none; margin-top: 20px; }
@media (max-width: 900px) {
  .story { display: block; }
  .story-pin { display: none; }
  .step { min-height: 0; opacity: 1; padding: 34px 0; }
  .step .win { display: block; }
}

/* ───────────── Bento ───────────── */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; margin-top: 56px; }
.card { position: relative; grid-column: span 2; padding: 26px; border-radius: 14px; background: var(--panel); border: 1px solid var(--border); overflow: hidden; isolation: isolate; }
.card::before { content: ''; position: absolute; inset: 0; z-index: -1; opacity: 0; transition: opacity 0.4s; background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 50%), var(--glow), transparent 70%); }
.card:hover::before { opacity: 1; }
.card.w3 { grid-column: span 3; }
.card.w4 { grid-column: span 4; }
.card.tall { grid-row: span 2; }
.card h3 { font-size: 20px; letter-spacing: -0.02em; margin-bottom: 10px; }
.card p { color: var(--dim); font-size: 15.5px; line-height: 1.55; margin: 0; }
.card .glyph { font: 600 13px/1 var(--mono); color: var(--accent); margin-bottom: 18px; display: block; }
.card .win { margin: 22px -27px -27px 0; border-radius: 10px 0 0 0; border-right: 0; border-bottom: 0; box-shadow: none; }
@media (max-width: 900px) { .bento { grid-template-columns: 1fr 1fr; } .card, .card.w3, .card.w4 { grid-column: span 1; } .card.w4 { grid-column: span 2; } }
@media (max-width: 600px) { .bento { grid-template-columns: 1fr; } .card, .card.w3, .card.w4 { grid-column: span 1; } }

/* ───────────── Flow diagram ───────────── */
.flow { margin-top: 56px; }
.flow svg { width: 100%; height: auto; overflow: visible; }
.flow .node rect { fill: var(--panel); stroke: var(--border); }
.flow .node text { fill: var(--text); font: 600 15px var(--sans); }
.flow .node text.sub { fill: var(--dim); font: 400 12px var(--mono); }
.flow .wire { fill: none; stroke: var(--border); stroke-width: 1.5; }
.flow .pulse { fill: none; stroke: var(--c, var(--accent)); stroke-width: 2.5; stroke-linecap: round; stroke-dasharray: 26 400; animation: flow 3.2s linear infinite; animation-delay: var(--dl, 0s); }
@keyframes flow { from { stroke-dashoffset: 426; } to { stroke-dashoffset: 0; } }
.flow .app rect { fill: var(--bg-app); stroke: var(--accent); }
.flow .bar { animation: barin 1.6s ease-in-out infinite alternate; transform-origin: 0 50%; transform-box: fill-box; animation-delay: var(--dl, 0s); }
@keyframes barin { from { transform: scaleX(0.55); } to { transform: scaleX(1); } }
.flow-list { display: none; margin: 32px 0 0; padding: 0; list-style: none; gap: 10px; }
.flow-list li { padding: 14px 16px; border: 1px solid var(--border); border-left: 3px solid var(--c); border-radius: 8px; background: var(--panel); }
.flow-list span { display: block; font: 400 12px/1.4 var(--mono); color: var(--dim); }
@media (max-width: 760px) { .flow svg { display: none; } .flow-list { display: grid; } }

/* ───────────── Chat mock ───────────── */
.duo { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
@media (max-width: 900px) { .duo { grid-template-columns: 1fr; } }
.chat { border-radius: 14px; background: var(--panel); border: 1px solid var(--border); padding: 22px; display: grid; gap: 12px; font-size: 15.5px; min-height: 380px; align-content: start; box-shadow: var(--win-shadow); }
.chat > * { margin: 0; }
.js .chat > * { opacity: 0; transform: translateY(10px); transition: opacity 0.5s var(--ease), transform 0.5s var(--ease); }
.js .chat > .on, .js .chat.static > * { opacity: 1; transform: none; }
.msg { padding: 12px 15px; border-radius: 12px; max-width: 92%; line-height: 1.5; }
.msg.you { justify-self: end; background: var(--accent); color: var(--accent-ink); border-bottom-right-radius: 4px; }
.msg.ai { background: var(--raised); border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.tool { font: 500 12.5px/1.4 var(--mono); color: var(--dim); display: flex; align-items: center; gap: 9px; padding-left: 4px; }
.tool::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--c, var(--info)); flex: none; }
.tool b { color: var(--text); font-weight: 600; }
.tool.view { --c: var(--warn); } .tool.ask { --c: var(--fatal); }
.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 48px; }
.tiers .card { grid-column: auto; border-top: 3px solid var(--c); }
.tiers code { display: inline-block; margin: 0 4px 6px 0; }
.tiers .list { margin-top: 16px; }
@media (max-width: 860px) { .tiers { grid-template-columns: 1fr; } }

/* ───────────── Scheme picker ───────────── */
.schemes { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 40px 0 28px; }
.swatch { display: inline-flex; align-items: center; gap: 9px; height: 36px; padding: 0 13px 0 7px; border-radius: 999px; border: 1px solid var(--border); background: var(--panel); color: var(--dim); font: 500 13.5px/1 var(--sans); cursor: pointer; transition: color 0.2s, border-color 0.2s, transform 0.3s var(--ease); }
.swatch i { width: 22px; height: 22px; border-radius: 50%; background: linear-gradient(135deg, var(--a) 0 50%, var(--b) 50%); box-shadow: inset 0 0 0 1px rgb(128 128 128 / 40%); }
.swatch:hover { transform: translateY(-2px); color: var(--text); }
.swatch[aria-pressed='true'] { color: var(--text); border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.scheme-stage { position: relative; max-width: 1080px; margin-inline: auto; }
.scheme-stage .stack { position: relative; aspect-ratio: 1600 / 877; background: var(--bg-app); }
.scheme-stage .stack img { position: absolute; inset: 0; width: 100%; height: 100%; transition: opacity 0.5s, clip-path 0.8s var(--ease); cursor: default; }
.scheme-stage .stack img.wipe { clip-path: inset(0 100% 0 0); }
.scheme-stage .stack img.wipe.on { clip-path: inset(0 0 0 0); }

/* ───────────── Feature rows (sub pages) ───────────── */
.subnav { position: sticky; top: var(--nav-h); z-index: 30; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-block: 1px solid var(--border); }
.subnav ul { display: flex; gap: 4px; margin: 0; padding: 8px 0; list-style: none; overflow-x: auto; scrollbar-width: none; }
.subnav a { display: block; padding: 7px 12px; border-radius: 7px; font: 500 13px/1 var(--mono); color: var(--dim); text-decoration: none; white-space: nowrap; }
.subnav a:hover, .subnav a.on { color: var(--text); background: var(--raised); }
.group-head { padding: clamp(56px, 8vw, 110px) 0 8px; }
.group-head .lead { max-width: 60ch; }
.feature { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(24px, 4.5vw, 70px); align-items: center; padding: clamp(34px, 5vw, 70px) 0; border-top: 1px solid var(--border); }
.feature:nth-of-type(even) { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.feature:nth-of-type(even) .text { order: 2; }
.feature h3 { font-size: clamp(24px, 2.6vw, 34px); margin-bottom: 12px; }
.feature .tagline { color: var(--text); font-weight: 600; font-size: 18px; margin-bottom: 12px; }
.feature p { color: var(--dim); max-width: 54ch; }
.feature .keys { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 14px; font: 400 13px/1 var(--mono); color: var(--faint); }
.feature ul { color: var(--dim); padding-left: 1.1em; margin: 0 0 1em; }
.feature li { margin-bottom: 0.35em; }
.shots { display: grid; gap: 14px; }
@media (max-width: 860px) { .feature, .feature:nth-of-type(even) { grid-template-columns: 1fr; } .feature:nth-of-type(even) .text { order: 0; } }
.minis { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; margin-top: 40px; }
.minis .card { grid-column: auto; }

/* ───────────── Tables, details, code blocks ───────────── */
.table-scroll { overflow-x: auto; margin-top: 28px; border: 1px solid var(--border); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 15.5px; }
th, td { text-align: left; padding: 11px 16px; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
th { font: 600 12px/1.2 var(--mono); color: var(--dim); text-transform: uppercase; letter-spacing: 0.08em; background: var(--panel); position: sticky; top: 0; }
td:first-child { white-space: nowrap; }
td.num { font-family: var(--mono); font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; color: var(--text); }
tbody tr { transition: background 0.15s; }
tbody tr:hover { background: color-mix(in srgb, var(--hover) 45%, transparent); }
tr[hidden] { display: none; }
.filter { width: 100%; max-width: 420px; height: 46px; margin-top: 28px; padding: 0 16px; border-radius: 10px; border: 1px solid var(--border); background: var(--panel); color: var(--text); font: 400 15px var(--mono); }
.filter::placeholder { color: var(--faint); }
details { border-bottom: 1px solid var(--border); padding: 16px 0; }
details:first-of-type { border-top: 1px solid var(--border); }
summary { cursor: pointer; font: 650 18px/1.35 var(--sans); letter-spacing: -0.01em; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; font: 400 22px/1 var(--mono); color: var(--dim); transition: transform 0.3s var(--ease); }
details[open] summary::after { transform: rotate(45deg); }
details > :not(summary) { color: var(--dim); max-width: 78ch; }
details > p:first-of-type, details > ul:first-of-type { margin-top: 12px; }
details ul { padding-left: 1.1em; }
details li { margin-bottom: 0.4em; }
.faq { max-width: 900px; margin-top: 36px; }
pre { margin: 20px 0 0; padding: 18px 20px; border-radius: 12px; background: var(--bg-app); border: 1px solid var(--border); overflow-x: auto; font: 400 13.5px/1.6 var(--mono); }
pre code { background: none; border: 0; padding: 0; font-size: inherit; }
pre .p { color: var(--info); user-select: none; }
pre .c { color: var(--faint); }

/* ───────────── Platforms, CTA, footer ───────────── */
.os { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 48px; }
.os .card { grid-column: auto; }
.os .card b { display: block; font: 500 13px/1.5 var(--mono); color: var(--dim); margin-top: 10px; }
@media (max-width: 760px) { .os { grid-template-columns: 1fr; } }
.cta { text-align: center; padding: clamp(90px, 14vw, 190px) 0; position: relative; overflow: clip; }
.cta::before { content: ''; position: absolute; inset: auto 0 0; height: 100%; z-index: -1; background: radial-gradient(50% 70% at 50% 100%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%); }
.cta .h2 { font-size: clamp(44px, 8vw, 110px); letter-spacing: -0.05em; }
.cta .actions { justify-content: center; }
.cta .prompt { font: 500 15px/1 var(--mono); color: var(--dim); margin-bottom: 26px; }
.cta .prompt::after { content: ''; display: inline-block; width: 0.6em; height: 1.1em; margin-left: 4px; vertical-align: -0.2em; background: var(--accent); animation: blink 1.06s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.pages { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 48px; }
.pages a { grid-column: auto; text-decoration: none; color: inherit; transition: transform 0.4s var(--ease), border-color 0.2s; }
.pages a:hover { transform: translateY(-4px); border-color: var(--dim); }
@media (max-width: 900px) { .pages { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .pages { grid-template-columns: 1fr; } }
footer { border-top: 1px solid var(--border); padding: 36px 0 48px; font-size: 14.5px; color: var(--dim); }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px 40px; }
footer ul { display: flex; flex-wrap: wrap; gap: 8px 24px; margin: 0; padding: 0; list-style: none; }
footer a { color: var(--dim); }
footer a:hover { color: var(--text); }
footer p { margin: 0; }

/* ───────────── Lightbox ───────────── */
.lightbox { border: 0; padding: 0; background: transparent; max-width: min(96vw, 1700px); max-height: 94vh; }
.lightbox::backdrop { background: rgb(5 7 10 / 86%); backdrop-filter: blur(6px); }
.lightbox img { max-height: 94vh; width: auto; border-radius: 10px; border: 1px solid var(--border); cursor: zoom-out; }