/* Sample Files by Technology Channel
   Brand: monochrome (black, white, grays), Poppins for headings, Inter for body.
   No accent colors, gradients or drop shadows. White space is a feature. */

:root {
  --c-black: #000000;
  --c-ink: #1a1a1a;
  --c-700: #404040;
  --c-500: #808080;
  --c-300: #b3b3b3;
  --c-200: #e5e5e5;
  --c-100: #f5f5f5;
  --c-white: #ffffff;

  --bg: var(--c-white);
  --bg-soft: var(--c-100);
  --bg-raised: var(--c-white);
  --fg: var(--c-ink);
  --fg-strong: var(--c-black);
  --fg-muted: var(--c-700);
  --fg-subtle: var(--c-500);
  --line: var(--c-200);
  --line-strong: var(--c-300);
  --btn-bg: var(--c-black);
  --btn-fg: var(--c-white);
  --btn-hover: var(--c-700);
  --check-a: var(--c-white);
  --check-b: var(--c-200);

  --font-display: "Poppins", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "Cascadia Code", Consolas, "Liberation Mono", monospace;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --container: 1180px;
  --gutter: clamp(16px, 4vw, 32px);
  --header-h: 64px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: var(--c-black);
    --bg-soft: var(--c-ink);
    --bg-raised: var(--c-ink);
    --fg: var(--c-100);
    --fg-strong: var(--c-white);
    --fg-muted: var(--c-300);
    --fg-subtle: var(--c-500);
    --line: #2b2b2b;
    --line-strong: var(--c-700);
    --btn-bg: var(--c-white);
    --btn-fg: var(--c-black);
    --btn-hover: var(--c-200);
    --check-a: var(--c-ink);
    --check-b: #2b2b2b;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: var(--c-black);
  --bg-soft: var(--c-ink);
  --bg-raised: var(--c-ink);
  --fg: var(--c-100);
  --fg-strong: var(--c-white);
  --fg-muted: var(--c-300);
  --fg-subtle: var(--c-500);
  --line: #2b2b2b;
  --line-strong: var(--c-700);
  --btn-bg: var(--c-white);
  --btn-fg: var(--c-black);
  --btn-hover: var(--c-200);
  --check-a: var(--c-ink);
  --check-b: #2b2b2b;
  color-scheme: dark;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 400 16px/1.6 var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--fg-strong); }
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--fg-strong); margin: 0; line-height: 1.15; letter-spacing: -0.01em; }
h1 { font-weight: 700; }
h2 { font-weight: 600; font-size: clamp(1.5rem, 2.6vw, 2rem); }
h3 { font-weight: 600; font-size: 1.125rem; }
p { margin: 0; }
code, kbd, pre { font-family: var(--font-mono); font-size: .875em; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--fg-strong); outline-offset: 3px; border-radius: 6px; }
::selection { background: var(--fg-strong); color: var(--bg); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 16px; top: -48px; z-index: 100; background: var(--btn-bg); color: var(--btn-fg); padding: 10px 16px; border-radius: var(--radius-sm); text-decoration: none; transition: top .2s; }
.skip-link:focus { top: 12px; }
.icon { width: 20px; height: 20px; flex: none; }
.icon-sm { width: 16px; height: 16px; }
.muted { color: var(--fg-muted); }
.mono { font-family: var(--font-mono); }

/* Logo swaps with the theme: the mark is only ever pure black or pure white */
.logo-dark { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .logo-light { display: none; }
  :root:not([data-theme="light"]) .logo-dark { display: block; }
}
:root[data-theme="dark"] .logo-light { display: none; }
:root[data-theme="dark"] .logo-dark { display: block; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 42px; padding: 0 18px; border-radius: 10px;
  font: 600 14px/1 var(--font-body); letter-spacing: .005em;
  text-decoration: none; white-space: nowrap; cursor: pointer;
  border: 1px solid transparent; background: transparent; color: var(--fg-strong);
  transition: background-color .15s var(--ease), border-color .15s var(--ease), color .15s var(--ease), transform .15s var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--btn-bg); color: var(--btn-fg); }
.btn-primary:hover { background: var(--btn-hover); color: var(--btn-fg); }
.btn-secondary { border-color: var(--line-strong); }
.btn-secondary:hover { border-color: var(--fg-strong); }
.btn-ghost:hover { background: var(--bg-soft); }
.btn-sm { height: 34px; padding: 0 12px; font-size: 13px; border-radius: 8px; }
.btn-lg { height: 52px; padding: 0 24px; font-size: 15px; border-radius: 12px; }
.btn-icon { width: 42px; padding: 0; }
.btn-icon.btn-sm { width: 34px; }
.btn[aria-busy="true"] { opacity: .7; pointer-events: none; }
.btn .count { font-weight: 500; opacity: .7; font-size: 12px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: saturate(1.2) blur(12px);
  -webkit-backdrop-filter: saturate(1.2) blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 16px; height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--fg-strong); margin-right: auto; }
.brand img { width: 30px; height: 30px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font: 700 17px/1.1 var(--font-display); letter-spacing: -0.01em; }
.brand-by { font: 500 11px/1.2 var(--font-body); color: var(--fg-muted); letter-spacing: .01em; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
  display: inline-flex; align-items: center; gap: 6px; height: 38px; padding: 0 12px;
  border-radius: 8px; font: 500 14px/1 var(--font-body); color: var(--fg); text-decoration: none;
  background: none; border: 0; cursor: pointer;
}
.nav-link:hover, .nav-link[aria-expanded="true"] { background: var(--bg-soft); color: var(--fg-strong); }
.nav-link[aria-current="page"] { color: var(--fg-strong); font-weight: 600; }
.search-trigger {
  display: inline-flex; align-items: center; gap: 10px; height: 38px; padding: 0 10px 0 12px; min-width: 220px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--fg-muted);
  font: 400 14px/1 var(--font-body); cursor: pointer; transition: border-color .15s;
}
.search-trigger:hover { border-color: var(--line-strong); }
.search-trigger kbd, .kbd {
  margin-left: auto; font: 500 11px/1 var(--font-mono); padding: 4px 6px; border-radius: 6px;
  border: 1px solid var(--line); color: var(--fg-muted); background: var(--bg-soft);
}
.header-actions { display: flex; align-items: center; gap: 6px; }
.menu-toggle { display: none; }

/* Mega menu */
.mega {
  position: absolute; left: 0; right: 0; top: 100%;
  background: var(--bg); border-bottom: 1px solid var(--line);
  padding: 28px 0 32px; display: none;
}
.mega.open { display: block; animation: fadeIn .18s var(--ease); }
.mega-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 24px; }
.mega h4 { font: 600 12px/1 var(--font-body); text-transform: uppercase; letter-spacing: .08em; color: var(--fg-muted); margin-bottom: 12px; }
.mega ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.mega a { display: flex; align-items: baseline; gap: 8px; padding: 6px 8px; margin: 0 -8px; border-radius: 8px; text-decoration: none; font-size: 14px; }
.mega a:hover { background: var(--bg-soft); }
.mega a b { font: 600 13px/1 var(--font-display); color: var(--fg-strong); min-width: 38px; }
.mega a span { color: var(--fg-muted); font-size: 13px; }
.mega-foot { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; gap: 24px; flex-wrap: wrap; font-size: 14px; }
.mega-foot a { margin: 0; padding: 0; display: inline-flex; gap: 6px; align-items: center; font-weight: 500; }
.mega-foot a:hover { background: none; text-decoration: underline; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

/* ---------- Sections ---------- */
main { display: block; }
.section { padding: clamp(56px, 8vw, 96px) 0; }
.section + .section { padding-top: 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-head p { color: var(--fg-muted); max-width: 560px; margin-top: 8px; }
.eyebrow { font: 600 12px/1 var(--font-body); text-transform: uppercase; letter-spacing: .1em; color: var(--fg-muted); margin-bottom: 14px; display: block; }
.divider { border: 0; border-top: 1px solid var(--line); margin: 0; }

/* ---------- Hero (home) ---------- */
.hero { padding: clamp(56px, 9vw, 112px) 0 clamp(40px, 6vw, 72px); }
.hero h1 { font-size: clamp(2.6rem, 5.6vw, 4.6rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.02; max-width: 12ch; }
.hero .lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--fg-muted); max-width: 620px; margin-top: 22px; }
.hero-search { position: relative; max-width: 640px; margin-top: 36px; }
.hero-search input {
  width: 100%; height: 60px; padding: 0 108px 0 54px; border-radius: 14px;
  border: 1px solid var(--line-strong); background: var(--bg); color: var(--fg-strong);
  font: 400 17px/1 var(--font-body); transition: border-color .15s;
}
.hero-search input::placeholder { color: var(--fg-subtle); }
.hero-search input:focus { outline: none; border-color: var(--fg-strong); box-shadow: 0 0 0 1px var(--fg-strong); }
.hero-search .icon { position: absolute; left: 20px; top: 20px; color: var(--fg-muted); }
.hero-search .kbd { position: absolute; right: 16px; top: 19px; }
.quick { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 18px; }
.quick-label { font-size: 13px; color: var(--fg-muted); margin-right: 4px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; height: 32px; padding: 0 12px;
  border-radius: 999px; border: 1px solid var(--line); background: var(--bg);
  font: 500 13px/1 var(--font-body); color: var(--fg); text-decoration: none; transition: border-color .15s, background-color .15s;
}
a.chip:hover { border-color: var(--fg-strong); color: var(--fg-strong); }
.chip b { font-family: var(--font-display); font-weight: 600; }
.stats { display: flex; flex-wrap: wrap; gap: 0; margin-top: clamp(40px, 6vw, 64px); border-top: 1px solid var(--line); }
.stat { flex: 1 1 160px; padding: 20px 24px 0 0; }
.stat + .stat { padding-left: 24px; border-left: 1px solid var(--line); }
.stat strong { display: block; font: 700 clamp(1.5rem, 3vw, 2rem)/1.1 var(--font-display); color: var(--fg-strong); letter-spacing: -0.02em; }
.stat span { font-size: 14px; color: var(--fg-muted); }

/* ---------- Hero grid + popular downloads ---------- */
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.quickbox { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--bg); padding: 8px; }
.quickbox-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 14px 14px 10px; }
.quickbox-head h2 { font-size: 1.05rem; }
.quickbox-head span { font-size: 12.5px; color: var(--fg-muted); }
.quickbox ul { list-style: none; margin: 0; padding: 0; }
.qrow { display: grid; grid-template-columns: 36px minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 10px 10px 10px 12px; border-radius: 12px; }
.qrow + .qrow { border-top: 1px solid var(--line); }
.qrow:hover { background: var(--bg-soft); }
.qrow:hover + .qrow { border-top-color: transparent; }
.qrow .ftype { width: 32px; height: 38px; font-size: 8.5px; padding-bottom: 6px; border-radius: 4px 10px 4px 4px; }
.qrow .btn { min-width: 34px; padding: 0 9px; gap: 4px; }
.pop-meta { min-width: 0; flex: 1; }
.pop-meta a { text-decoration: none; }
.pop-meta strong { display: block; font: 600 15px/1.3 var(--font-display); color: var(--fg-strong); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pop-meta span { font-size: 13px; color: var(--fg-muted); }

/* ---------- Format tiles ---------- */
.cat { margin-top: 48px; }
.cat:first-of-type { margin-top: 0; }
.cat-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 16px; }
.cat-head h3 { font-size: 1.25rem; }
.cat-head p { color: var(--fg-muted); font-size: 14px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.tile {
  position: relative; display: flex; flex-direction: column; gap: 18px; padding: 20px;
  border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--bg);
  text-decoration: none; color: var(--fg); min-height: 168px;
  transition: border-color .15s var(--ease), background-color .15s var(--ease);
}
.tile:hover { border-color: var(--fg-strong); color: var(--fg); }
.tile:hover .tile-arrow { transform: translateX(3px); opacity: 1; }
.tile-ext { font: 700 2rem/1 var(--font-display); color: var(--fg-strong); letter-spacing: -0.02em; }
.tile-name { font-weight: 600; font-size: 15px; color: var(--fg-strong); }
.tile-meta { font-size: 13px; color: var(--fg-muted); margin-top: 2px; }
.tile-foot { margin-top: auto; display: flex; align-items: end; justify-content: space-between; gap: 8px; }
.tile-arrow { opacity: .5; transition: transform .2s var(--ease), opacity .2s; }
.tile-badge { position: absolute; top: 18px; right: 18px; font: 600 11px/1 var(--font-body); padding: 5px 8px; border-radius: 999px; background: var(--btn-bg); color: var(--btn-fg); letter-spacing: .02em; }
.tile[hidden] { display: none; }
.no-results { padding: 40px 0; color: var(--fg-muted); display: none; }
.no-results.show { display: block; }

/* ---------- Features ---------- */
.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
.feature { padding: 28px 28px 0 0; }
.feature + .feature { padding-left: 28px; border-left: 1px solid var(--line); }
.feature .icon { width: 24px; height: 24px; color: var(--fg-strong); margin-bottom: 18px; }
.feature h3 { margin-bottom: 8px; }
.feature p { color: var(--fg-muted); font-size: 15px; }

/* ---------- Banner ---------- */
.banner {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; align-items: center;
  padding: clamp(28px, 5vw, 56px); border-radius: var(--radius-lg);
  background: var(--btn-bg); color: var(--btn-fg);
}
.banner h2 { color: var(--btn-fg); font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; letter-spacing: -0.02em; }
.banner p { opacity: .75; margin-top: 12px; max-width: 520px; }
.banner .btn-primary { background: var(--bg); color: var(--fg-strong); }
.banner .btn-primary:hover { background: var(--bg-soft); }
.banner .btn-secondary { border-color: color-mix(in srgb, var(--btn-fg) 35%, transparent); color: var(--btn-fg); }
.banner .btn-secondary:hover { border-color: var(--btn-fg); }
.banner-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.banner code { background: color-mix(in srgb, var(--btn-fg) 12%, transparent); padding: 2px 6px; border-radius: 6px; }

/* ---------- Format page ---------- */
.crumbs { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: 13px; color: var(--fg-muted); padding-top: 28px; }
.crumbs a { text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.crumbs span[aria-hidden] { color: var(--fg-subtle); }
.page-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 32px; align-items: end; padding: 28px 0 36px; border-bottom: 1px solid var(--line); }
.page-head h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; letter-spacing: -0.03em; }
.page-head .lead { color: var(--fg-muted); font-size: 1.1rem; max-width: 640px; margin-top: 14px; }
.ext-badge { display: inline-flex; align-items: center; justify-content: center; height: 30px; padding: 0 10px; border-radius: 8px; background: var(--btn-bg); color: var(--btn-fg); font: 700 13px/1 var(--font-display); letter-spacing: .04em; margin-bottom: 18px; }
.facts-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.head-actions { display: flex; flex-direction: column; gap: 10px; align-items: stretch; min-width: 240px; }
.head-actions small { color: var(--fg-muted); font-size: 12px; text-align: center; }

.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 0 18px; flex-wrap: wrap; }
.toolbar h2 { font-size: 1.25rem; }
.toolbar .muted { font-size: 14px; }
.filter { position: relative; }
.filter input {
  height: 38px; width: 240px; padding: 0 12px 0 36px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--bg); color: var(--fg-strong); font: 400 14px/1 var(--font-body);
}
.filter input:focus { outline: none; border-color: var(--fg-strong); }
.filter .icon { position: absolute; left: 11px; top: 10px; width: 18px; height: 18px; color: var(--fg-muted); }

/* File cards (visual formats) */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.card { display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: var(--bg); transition: border-color .15s; }
.card:hover { border-color: var(--line-strong); }
.card-media {
  position: relative; aspect-ratio: 16 / 10; background: var(--bg-soft); display: grid; place-items: center;
  border: 0; padding: 0; width: 100%; cursor: zoom-in; overflow: hidden;
}
.card-media img { width: 100%; height: 100%; object-fit: contain; transition: transform .4s var(--ease); }
.card-media:hover img { transform: scale(1.02); }
.card-media.alpha, .preview-stage.alpha {
  background-color: var(--check-a);
  background-image: conic-gradient(var(--check-b) 25%, transparent 0 50%, var(--check-b) 0 75%, transparent 0);
  background-size: 20px 20px;
}
.card-media .play {
  position: absolute; width: 56px; height: 56px; border-radius: 999px; display: grid; place-items: center;
  background: var(--c-black); color: var(--c-white); opacity: .88; transition: transform .2s var(--ease);
}
.card-media:hover .play { transform: scale(1.06); }
.card-media .dur { position: absolute; right: 10px; bottom: 10px; font: 600 12px/1 var(--font-body); padding: 5px 7px; border-radius: 6px; background: var(--c-black); color: var(--c-white); }
.card-media .noprev { font: 700 1.5rem/1 var(--font-display); color: var(--fg-subtle); }
.card-body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-title { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.card-title h3 { font-size: 1rem; }
.size { font: 600 13px/1 var(--font-body); color: var(--fg-strong); white-space: nowrap; }
.fname { font: 400 12.5px/1.3 var(--font-mono); color: var(--fg-muted); word-break: break-all; }
.desc { font-size: 14px; color: var(--fg-muted); }
.specs { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.specs li { font: 500 12px/1 var(--font-body); padding: 6px 8px; border-radius: 6px; background: var(--bg-soft); color: var(--fg); }
.card-actions { display: flex; gap: 8px; margin-top: auto; padding-top: 6px; }
.card-actions .btn-primary { flex: 1; }
.featured-flag { font: 600 11px/1 var(--font-body); padding: 4px 7px; border-radius: 999px; border: 1px solid var(--fg-strong); color: var(--fg-strong); margin-left: 8px; vertical-align: 2px; }

/* File rows (documents, data, audio, archives) */
.rows { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: var(--bg); }
.row { display: grid; grid-template-columns: 52px minmax(0, 1fr) auto; gap: 18px; align-items: center; padding: 18px 20px; }
.row + .row { border-top: 1px solid var(--line); }
.row:hover { background: color-mix(in srgb, var(--bg-soft) 55%, var(--bg)); }
.ftype {
  width: 44px; height: 52px; border-radius: 6px 14px 6px 6px; border: 1.5px solid var(--fg-strong);
  display: grid; place-items: end center; padding-bottom: 8px; font: 700 10px/1 var(--font-display); letter-spacing: .03em; color: var(--fg-strong); background: var(--bg);
}
.row-main { min-width: 0; display: grid; gap: 6px; }
.row-title { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; }
.row-title h3 { font-size: 1rem; }
.row-side { display: flex; align-items: center; gap: 8px; }
.row-side .size { min-width: 64px; text-align: right; margin-right: 6px; }
.row-extra { grid-column: 2 / -1; }
.pw { font: 500 13px/1.4 var(--font-body); }
.pw code { background: var(--bg-soft); padding: 2px 6px; border-radius: 5px; color: var(--fg-strong); }

/* Audio rows */
.wave { display: flex; align-items: center; gap: 2px; height: 36px; cursor: pointer; position: relative; flex: 1 1 auto; min-width: 0; max-width: 520px; }
.wave i { flex: 1; min-width: 1px; background: var(--line-strong); border-radius: 2px; transition: background-color .1s; }
.wave i.on { background: var(--fg-strong); }
.audio-ui { display: flex; align-items: center; gap: 14px; }
.audio-ui .time { font: 500 12px/1 var(--font-mono); color: var(--fg-muted); flex: none; white-space: nowrap; }
/* grid and flex children must be allowed to shrink below their content (code blocks, trees) */
.two-col > *, .gen > *, .hero-grid > *, .page-head > *, .row-extra { min-width: 0; }

/* ZIP tree */
.tree-toggle { justify-self: start; }
.tree {
  margin-top: 10px; max-height: 360px; overflow: auto; padding: 14px 16px; border-radius: var(--radius);
  background: var(--bg-soft); font: 400 12.5px/1.75 var(--font-mono); color: var(--fg); white-space: pre;
}
.tree .d { font-weight: 700; color: var(--fg-strong); }
.tree .hint { color: var(--fg-muted); }

/* ---------- Generator ---------- */
.gen {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: clamp(24px, 4vw, 56px);
  padding: clamp(24px, 4vw, 44px); border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--bg-soft);
}
.gen h2 { font-size: clamp(1.4rem, 2.4vw, 1.8rem); }
.gen > div > p { color: var(--fg-muted); margin-top: 10px; }
.gen-form { display: grid; gap: 16px; align-content: start; }
.field { display: grid; gap: 6px; }
.field label, .field .label { font: 600 13px/1 var(--font-body); color: var(--fg-strong); }
.field-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.input, .select {
  height: 46px; padding: 0 14px; border-radius: 10px; border: 1px solid var(--line-strong);
  background: var(--bg); color: var(--fg-strong); font: 500 15px/1 var(--font-body); width: 100%;
}
.input:focus, .select:focus { outline: none; border-color: var(--fg-strong); box-shadow: 0 0 0 1px var(--fg-strong); }
.select { appearance: none; -webkit-appearance: none; padding-right: 36px; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' fill='none' stroke='%23808080' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; }
.seg { display: inline-flex; padding: 3px; border-radius: 10px; border: 1px solid var(--line-strong); background: var(--bg); height: 46px; }
.seg button { border: 0; background: none; padding: 0 14px; border-radius: 7px; font: 600 13px/1 var(--font-body); cursor: pointer; color: var(--fg-muted); }
.seg button[aria-pressed="true"] { background: var(--btn-bg); color: var(--btn-fg); }
.presets { display: flex; flex-wrap: wrap; gap: 6px; }
.presets button { cursor: pointer; }
.presets button.chip:hover { border-color: var(--fg-strong); }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--fg-muted); cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--fg-strong); margin: 2px 0 0; flex: none; }
.gen-note { font-size: 13px; color: var(--fg-muted); min-height: 1.4em; }
.gen-note.err { color: var(--fg-strong); font-weight: 600; }
.formats-pick { display: grid; grid-template-columns: repeat(auto-fill, minmax(78px, 1fr)); gap: 6px; }
.formats-pick button { height: 40px; border-radius: 9px; border: 1px solid var(--line-strong); background: var(--bg); font: 600 13px/1 var(--font-display); cursor: pointer; color: var(--fg-strong); }
.formats-pick button[aria-pressed="true"] { background: var(--btn-bg); color: var(--btn-fg); border-color: var(--btn-bg); }

/* ---------- Content blocks ---------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 5vw, 64px); }
.checklist { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 12px; }
.checklist li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; color: var(--fg); }
.checklist .icon { width: 18px; height: 18px; margin-top: 3px; color: var(--fg-strong); }
.facts { width: 100%; border-collapse: collapse; margin-top: 18px; font-size: 14px; }
.facts th, .facts td { text-align: left; padding: 12px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.facts th { width: 38%; font-weight: 500; color: var(--fg-muted); padding-right: 16px; }
.facts td { color: var(--fg-strong); font-weight: 500; }
.prose p { color: var(--fg-muted); margin-top: 14px; }
.prose p:first-of-type { margin-top: 18px; }

.code {
  position: relative; margin-top: 18px; border-radius: var(--radius); background: var(--c-black); color: var(--c-100);
  border: 1px solid var(--line);
}
.code-head { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px 10px 16px; border-bottom: 1px solid #2b2b2b; font: 500 12px/1 var(--font-body); color: var(--c-300); }
.code-head .btn { color: var(--c-white); border-color: #404040; }
.code-head .btn:hover { border-color: var(--c-white); }
.code pre { margin: 0; padding: 16px; overflow-x: auto; font-size: 13px; line-height: 1.7; }

/* FAQ */
.faq { border-top: 1px solid var(--line); margin-top: 8px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 20px 0; font: 600 1.05rem/1.4 var(--font-display); color: var(--fg-strong);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .icon { transition: transform .2s var(--ease); }
.faq details[open] summary .icon { transform: rotate(45deg); }
.faq details p { padding: 0 0 22px; color: var(--fg-muted); max-width: 760px; }

/* Related */
.related { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.related .tile { min-height: 132px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); margin-top: clamp(56px, 8vw, 96px); padding: 56px 0 40px; }
.footer-top { display: grid; grid-template-columns: 1.3fr repeat(3, 1fr); gap: 32px; }
.footer-brand img { height: 40px; width: auto; }
.footer-brand p { color: var(--fg-muted); font-size: 14px; margin-top: 16px; max-width: 320px; }
.site-footer h4 { font: 600 12px/1 var(--font-body); letter-spacing: .08em; text-transform: uppercase; color: var(--fg-muted); margin-bottom: 14px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 14px; }
.site-footer ul a { text-decoration: none; color: var(--fg); }
.site-footer ul a:hover { text-decoration: underline; color: var(--fg-strong); }
.footer-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 13px; color: var(--fg-muted); }

/* ---------- Modal / preview / palette ---------- */
.overlay { position: fixed; inset: 0; z-index: 90; background: color-mix(in srgb, var(--c-black) 72%, transparent); display: none; }
.overlay.open { display: grid; place-items: center; animation: fade .15s ease; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
.modal {
  width: min(1100px, calc(100vw - 32px)); max-height: calc(100vh - 32px); display: flex; flex-direction: column;
  background: var(--bg); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line);
}
.modal-head { display: flex; align-items: center; gap: 12px; padding: 12px 12px 12px 20px; border-bottom: 1px solid var(--line); }
.modal-head .t { min-width: 0; flex: 1; }
.modal-head strong { font: 600 15px/1.3 var(--font-display); color: var(--fg-strong); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.modal-head span { font-size: 12.5px; color: var(--fg-muted); }
.preview-stage { flex: 1; min-height: 240px; display: grid; place-items: center; background: var(--bg-soft); overflow: auto; }
.preview-stage img, .preview-stage video { max-width: 100%; max-height: calc(100vh - 140px); object-fit: contain; }
.preview-stage iframe { width: 100%; height: calc(100vh - 140px); border: 0; background: #fff; }
.preview-stage pre { align-self: stretch; justify-self: stretch; margin: 0; padding: 20px; font-size: 12.5px; line-height: 1.65; white-space: pre-wrap; word-break: break-word; color: var(--fg); max-height: calc(100vh - 140px); overflow: auto; }
.preview-stage .note { padding: 40px; color: var(--fg-muted); text-align: center; }

.palette { width: min(640px, calc(100vw - 32px)); align-self: start; margin-top: 12vh; background: var(--bg); border-radius: var(--radius-lg); border: 1px solid var(--line); overflow: hidden; }
.palette-input { display: flex; align-items: center; gap: 12px; padding: 0 16px; border-bottom: 1px solid var(--line); }
.palette-input input { flex: 1; height: 58px; border: 0; outline: none; background: none; color: var(--fg-strong); font: 400 17px/1 var(--font-body); }
.palette-results { max-height: 52vh; overflow: auto; padding: 8px; list-style: none; margin: 0; }
.palette-results li a { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 10px; text-decoration: none; }
.palette-results li a[aria-selected="true"], .palette-results li a:hover { background: var(--bg-soft); }
.palette-results .k { font: 700 11px/1 var(--font-display); min-width: 44px; height: 26px; display: grid; place-items: center; border-radius: 6px; border: 1px solid var(--line-strong); color: var(--fg-strong); }
.palette-results .n { flex: 1; min-width: 0; }
.palette-results .n strong { display: block; font-size: 14px; color: var(--fg-strong); font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.palette-results .n span { font-size: 12.5px; color: var(--fg-muted); }
.palette-results .group { font: 600 11px/1 var(--font-body); text-transform: uppercase; letter-spacing: .08em; color: var(--fg-muted); padding: 12px 12px 6px; }
.palette-empty { padding: 28px; text-align: center; color: var(--fg-muted); font-size: 14px; }
.palette-foot { display: flex; gap: 16px; padding: 10px 16px; border-top: 1px solid var(--line); font-size: 12px; color: var(--fg-muted); }

/* Toasts */
.toasts { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 100; display: grid; gap: 8px; justify-items: center; pointer-events: none; }
.toast {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-radius: 12px;
  background: var(--btn-bg); color: var(--btn-fg); font: 500 14px/1.3 var(--font-body);
  animation: toastIn .25s var(--ease); max-width: calc(100vw - 32px);
}
.toast.out { animation: toastOut .2s ease forwards; }
@keyframes toastIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes toastOut { to { opacity: 0; transform: translateY(8px); } }

/* 404 */
.notfound { padding: 120px 0 60px; }
.notfound h1 { font-size: clamp(3rem, 9vw, 6rem); font-weight: 800; letter-spacing: -0.04em; }
.notfound p { color: var(--fg-muted); margin: 16px 0 28px; max-width: 520px; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .mega-grid { grid-template-columns: repeat(3, 1fr); }
  .features { grid-template-columns: 1fr 1fr; }
  .feature:nth-child(3) { padding-left: 0; border-left: 0; }
  .feature:nth-child(n+3) { margin-top: 28px; }
  .related { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .search-trigger { min-width: 0; width: 42px; padding: 0; justify-content: center; }
  .search-trigger .label, .search-trigger kbd { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .banner { grid-template-columns: 1fr; }
  .banner-actions { justify-content: flex-start; }
  .gen { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .page-head { grid-template-columns: 1fr; align-items: start; }
  .head-actions { flex-direction: row; flex-wrap: wrap; min-width: 0; }
  .head-actions small { text-align: left; width: 100%; }
}
@media (max-width: 760px) {
  :root { --header-h: 58px; }
  .nav { display: none; }
  .nav.open {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    position: absolute; top: 100%; left: 0; right: 0; background: var(--bg); border-bottom: 1px solid var(--line);
    padding: 8px var(--gutter) 16px; max-height: calc(100vh - var(--header-h)); overflow: auto;
  }
  .nav.open .nav-link { height: 48px; padding: 0 4px; font-size: 16px; justify-content: space-between; border-radius: 0; border-bottom: 1px solid var(--line); }
  .nav.open .nav-link:hover { background: none; }
  .menu-toggle { display: inline-flex; }
  .mega { position: static; padding: 8px 0 4px; border: 0; }
  .mega-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .mega-foot { display: none; }
  .brand-by { display: none; }
  .hero-search input { height: 54px; font-size: 16px; padding-right: 16px; }
  .hero-search .icon { top: 17px; }
  .hero-search .kbd { display: none; }
  .stat { flex-basis: 45%; padding: 16px 0 0 0 !important; border-left: 0 !important; }
  .features { grid-template-columns: 1fr; }
  .feature { padding: 24px 0 0 !important; border-left: 0 !important; margin-top: 0 !important; }
  .feature + .feature { border-top: 1px solid var(--line); margin-top: 24px !important; }
  .tiles { grid-template-columns: 1fr 1fr; }
  .tile { min-height: 148px; padding: 16px; }
  .tile-ext { font-size: 1.6rem; }
  .cards { grid-template-columns: 1fr; }
  .row { grid-template-columns: 44px minmax(0, 1fr); gap: 14px; padding: 16px; }
  .ftype { width: 38px; height: 46px; }
  .row-side { grid-column: 1 / -1; justify-content: flex-start; }
  .row-side .size { text-align: left; min-width: 0; margin-right: auto; }
  .row-extra { grid-column: 1 / -1; }
  .head-actions .btn { flex: 1 1 100%; }
  .filter input { width: 100%; }
  .filter { flex: 1 1 100%; }
  .related { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .section-head { flex-direction: column; align-items: start; }
}
@media (max-width: 380px) {
  .tiles, .related { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}
@media print {
  .site-header, .site-footer, .card-actions, .row-side .btn, .gen, .toasts { display: none !important; }
}