/* IPMG project site. Self-hosted, no external fonts or assets. */

:root {
  --bg: #f9f9f7;
  --bg-alt: #f2f1ed;
  --surface: #ffffff;
  --text: #0b0b0b;
  --text-2: #52514e;
  --muted: #76756f;
  --border: rgba(11, 11, 11, 0.10);
  --border-strong: rgba(11, 11, 11, 0.20);
  --accent: #2a78d6;
  --accent-strong: #1f63b8;
  --accent-ink: #ffffff;
  --active: #0a8f0a;
  --critical: #c93434;
  --warning: #a86d00;
  --info: #2a78d6;
  --shadow: 0 1px 2px rgba(11, 11, 11, 0.04), 0 12px 32px rgba(11, 11, 11, 0.07);
  --term-bg: #0e1014;
  --term-bar: #171a20;
  --term-text: #e7e7e4;
  --term-dim: #8a8d94;
  --term-green: #43d073;
  --term-yellow: #f3b93a;
  --term-accent: #62a6f5;
  --radius: 14px;
  --wrap: 1160px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0c0c0d;
    --bg-alt: #121214;
    --surface: #18181a;
    --text: #f5f5f3;
    --text-2: #c3c2b7;
    --muted: #8f8e87;
    --border: rgba(255, 255, 255, 0.09);
    --border-strong: rgba(255, 255, 255, 0.18);
    --accent: #4a93ea;
    --accent-strong: #6aa8f0;
    --active: #43d073;
    --critical: #f06a6a;
    --warning: #f3b93a;
    --info: #62a6f5;
    --shadow: 0 1px 0 rgba(255, 255, 255, 0.03), 0 16px 40px rgba(0, 0, 0, 0.45);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0c0c0d;
  --bg-alt: #121214;
  --surface: #18181a;
  --text: #f5f5f3;
  --text-2: #c3c2b7;
  --muted: #8f8e87;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.18);
  --accent: #4a93ea;
  --accent-strong: #6aa8f0;
  --active: #43d073;
  --critical: #f06a6a;
  --warning: #f3b93a;
  --info: #62a6f5;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.03), 0 16px 40px rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}

/* ------------------------------------------------------------ base */

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent-strong); }
code, pre { font-family: var(--mono); }
:not(pre) > code {
  padding: 0.1em 0.38em;
  border-radius: 6px;
  background: color-mix(in srgb, var(--text) 7%, transparent);
  font-size: 0.88em;
  overflow-wrap: anywhere;
}
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }
button, input { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding-inline: 24px; }
.sr-only { position: absolute; 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; padding: 8px 12px; border-radius: 8px; background: var(--accent); color: var(--accent-ink); }
.skip-link:focus { top: 12px; color: var(--accent-ink); }
.muted { color: var(--muted); }

/* --------------------------------------------------------- buttons */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { color: var(--text); border-color: var(--text-2); transform: translateY(-1px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); box-shadow: 0 6px 20px color-mix(in srgb, var(--accent) 32%, transparent); }
.btn.primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); color: var(--accent-ink); }

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-2);
  cursor: pointer;
}
.icon-btn:hover { color: var(--text); border-color: var(--border-strong); }

.copy-btn {
  flex-shrink: 0;
  padding: 5px 10px;
  border-radius: 7px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text-2);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
}
.copy-btn:hover { color: var(--text); }
.copy-btn[data-state="copied"] { color: var(--active); border-color: color-mix(in srgb, var(--active) 50%, transparent); }
.copy-btn[data-state="failed"] { color: var(--critical); }

/* ---------------------------------------------------------- topbar */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}
.topbar.scrolled {
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom-color: var(--border);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
}
.topbar-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--accent); font-weight: 750; font-size: 18px; text-decoration: none; }
.brand:hover { color: var(--accent); }
.brand.small { font-size: 15px; gap: 8px; }
.brand .muted { font-weight: 500; font-size: 13px; margin-left: 6px; }
.topnav { display: flex; gap: 4px; margin-right: auto; }
.topnav a { padding: 7px 11px; border-radius: 8px; color: var(--text-2); font-size: 14.5px; font-weight: 500; text-decoration: none; }
.topnav a:hover { color: var(--text); background: color-mix(in srgb, var(--text) 5%, transparent); }
.topnav a.active { color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.topbar-actions { display: flex; align-items: center; gap: 8px; }
.gh-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 36px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}
.gh-link:hover { color: var(--text); border-color: var(--border-strong); }
.gh-stars { padding-left: 8px; margin-left: 2px; border-left: 1px solid var(--border); color: var(--text-2); font-variant-numeric: tabular-nums; }
.gh-stars::before { content: "★ "; color: var(--warning); }

/* ------------------------------------------------------------ hero */

.hero { position: relative; overflow: hidden; padding: 56px 0 72px; }
.hero-bg {
  position: absolute;
  inset: -20% -10% auto;
  height: 900px;
  pointer-events: none;
  background:
    radial-gradient(600px 380px at 78% 30%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%),
    repeating-radial-gradient(circle at 78% 34%, transparent 0 58px, color-mix(in srgb, var(--accent) 9%, transparent) 58px 59px);
  mask-image: radial-gradient(700px 520px at 76% 32%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(700px 520px at 76% 32%, #000 30%, transparent 75%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(38px, 5.2vw, 62px); letter-spacing: -0.045em; line-height: 1.03; margin: 18px 0 20px; }
.accent-text {
  background: linear-gradient(95deg, var(--accent), color-mix(in srgb, var(--accent) 45%, var(--active)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede { max-width: 560px; color: var(--text-2); font-size: 18px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.cta-row.center { justify-content: center; }

.release-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 5px 13px 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  color: var(--text-2);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
}
.release-pill:hover { color: var(--text); }
.live-dot { position: relative; width: 8px; height: 8px; border-radius: 50%; background: var(--active); }
.live-dot::after { content: ""; position: absolute; inset: 0; border-radius: 50%; background: var(--active); animation: ping 1.8s cubic-bezier(0, 0, 0.2, 1) infinite; }
@keyframes ping { 75%, 100% { transform: scale(2.6); opacity: 0; } }

.copy-line {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: 100%;
  margin-top: 22px;
  padding: 7px 7px 7px 14px;
  border-radius: 11px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.copy-line code { font-size: 14.5px; overflow-x: auto; white-space: nowrap; }
.copy-line .prompt { color: var(--muted); font-family: var(--mono); }

.hero-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 22px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: 14px; }
.hero-meta li::before { content: "✓"; margin-right: 6px; color: var(--active); font-weight: 700; }

/* -------------------------------------------------------- terminal */

.terminal, .browser {
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--term-bar) 60%, var(--border-strong));
  background: var(--term-bg);
  box-shadow: 0 30px 80px -20px rgba(8, 20, 40, 0.45), var(--shadow);
  overflow: hidden;
}
.terminal-bar, .browser-bar { display: flex; align-items: center; gap: 7px; height: 38px; padding: 0 14px; background: var(--term-bar); color: var(--term-dim); }
.light { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.light + .light { background: #febc2e; }
.light + .light + .light { background: #28c840; }
.terminal-bar p, .browser-bar p { flex: 1; text-align: center; font-size: 12.5px; margin-right: 38px; }
.replay { display: grid; place-items: center; width: 26px; height: 26px; margin-left: -26px; border: 0; border-radius: 6px; background: transparent; color: var(--term-dim); cursor: pointer; }
.replay:hover { color: var(--term-text); background: rgba(255, 255, 255, 0.06); }
.terminal-body {
  min-height: 430px;
  padding: 16px 18px 20px;
  color: var(--term-text);
  font: 12.6px/1.62 var(--mono);
  white-space: pre;
  overflow-x: auto;
}
.terminal-body > div { min-height: 1.62em; } /* keep blank lines */
.t-dim { color: var(--term-dim); }
.t-green { color: var(--term-green); }
.t-yellow { color: var(--term-yellow); }
.t-accent { color: var(--term-accent); }
.t-bold { font-weight: 700; }
.t-cursor { display: inline-block; width: 0.6em; height: 1.15em; margin-bottom: -0.2em; background: var(--term-text); animation: blink 1.05s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ----------------------------------------------------------- stats */

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: -8px;
}
.stat { padding: 22px 24px; border-left: 1px solid var(--border); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat strong { display: block; font-size: clamp(28px, 3.4vw, 40px); font-weight: 750; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.stat span { color: var(--muted); font-size: 14px; }

/* -------------------------------------------------------- sections */

.section { padding: 96px 0; scroll-margin-top: 64px; }
.section.alt { background: var(--bg-alt); border-block: 1px solid var(--border); }
.section-head { max-width: 640px; }
.section-head.center { margin: 0 auto; text-align: center; }
.section-head h2 { font-size: clamp(28px, 3.4vw, 42px); letter-spacing: -0.035em; margin: 10px 0 14px; }
.section-head > p:not(.kicker) { color: var(--text-2); font-size: 17px; }
.section-head .note { margin-top: 16px; font-size: 15px; color: var(--muted); }
.kicker { color: var(--accent); font-size: 12.5px; font-weight: 750; letter-spacing: 0.1em; text-transform: uppercase; }

/* -------------------------------------------------------- features */

.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 44px; }
.feature {
  position: relative;
  padding: 26px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.feature:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 35%, var(--border)); box-shadow: var(--shadow); }
.feature h3 { font-size: 17px; margin: 18px 0 8px; }
.feature p { color: var(--text-2); font-size: 15px; }
.icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 11px; background: color-mix(in srgb, var(--accent) 11%, transparent); color: var(--accent); }
.icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* --------------------------------------------------------- install */

.install-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 56px; align-items: start; }
.tabs { border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); box-shadow: var(--shadow); overflow: hidden; }
.tab-list { display: flex; gap: 2px; padding: 6px; border-bottom: 1px solid var(--border); overflow-x: auto; scrollbar-width: none; }
.tab-list::-webkit-scrollbar { display: none; }
.tab-list [role="tab"] { flex-shrink: 0; padding: 8px 14px; border: 0; border-radius: 8px; background: transparent; color: var(--text-2); font-size: 14.5px; font-weight: 600; cursor: pointer; }
.tab-list [role="tab"]:hover { color: var(--text); }
.tab-list [role="tab"][aria-selected="true"] { background: color-mix(in srgb, var(--accent) 11%, transparent); color: var(--accent); }
.tab-panel { padding: 20px; }
.tab-panel > p { margin-top: 14px; color: var(--text-2); font-size: 15px; }
/* The copy button sits beside the scrolling <pre>, never on top of it. */
.code-block { display: flex; align-items: flex-start; gap: 8px; border-radius: 10px; background: var(--term-bg); }
.code-block pre { flex: 1; min-width: 0; margin: 0; padding: 16px; color: var(--term-text); font-size: 13.5px; line-height: 1.7; overflow-x: auto; scrollbar-width: thin; }
.code-block .copy-btn { margin: 10px 10px 0 0; background: var(--term-bar); border-color: rgba(255, 255, 255, 0.14); color: var(--term-dim); }
.code-block .copy-btn:hover { color: var(--term-text); }
.code-block.compact { margin-top: 24px; }
.command .tok-cmd, .command .tok-flag { white-space: nowrap; } /* never split "--stream" */
.verify { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 14px 20px; border-top: 1px solid var(--border); color: var(--muted); font-size: 14.5px; }
.version-chip { margin-left: auto; padding: 2px 9px; border-radius: 999px; background: color-mix(in srgb, var(--active) 13%, transparent); color: var(--active); font-size: 12.5px; font-weight: 650; }

/* --------------------------------------------------------- builder */

.builder { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; margin-top: 44px; align-items: start; }
.builder-form { display: grid; gap: 14px; }
fieldset { margin: 0; padding: 18px 20px 20px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); min-width: 0; }
legend { float: left; width: 100%; margin-bottom: 12px; padding: 0; font-size: 13px; font-weight: 700; color: var(--muted); letter-spacing: 0.04em; text-transform: uppercase; }
legend + * { clear: both; }

.segmented { display: grid; grid-template-columns: 1fr 1fr; padding: 4px; border-radius: 10px; background: color-mix(in srgb, var(--text) 6%, transparent); }
.segmented label { position: relative; }
.segmented input { position: absolute; opacity: 0; }
.segmented span { display: block; padding: 8px 10px; border-radius: 7px; text-align: center; font-size: 14.5px; font-weight: 600; color: var(--text-2); cursor: pointer; }
.segmented input:checked + span { background: var(--surface); color: var(--text); box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12); }
.segmented input:focus-visible + span { outline: 2px solid var(--accent); }

.field { display: grid; gap: 6px; margin-top: 14px; font-size: 13.5px; color: var(--text-2); font-weight: 600; }
.field input {
  width: 100%;
  padding: 9px 11px;
  border-radius: 9px;
  border: 1px solid var(--border-strong);
  background: var(--bg);
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
}
.field input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent); }
.field input:disabled { opacity: 0.45; }
.numbers { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.numbers .field { margin-top: 0; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
fieldset > .chips:first-of-type { margin-top: 0; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-2);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.chip:hover { color: var(--text); border-color: var(--text-2); }
button.chip { font-family: var(--mono); font-weight: 500; }
.filter .chip { font-family: var(--font); font-weight: 600; }
.chip.check { position: relative; }
.chip.check input { position: absolute; opacity: 0; }
.chip.check:has(input:checked) { background: color-mix(in srgb, var(--accent) 12%, transparent); border-color: var(--accent); color: var(--accent); }
.chip.check:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }
.chip.check span::before { content: "+ "; }
.chip.check input:checked + span::before { content: "✓ "; }

.toggles { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.toggle { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border); cursor: pointer; }
.toggle:has(input:checked) { border-color: color-mix(in srgb, var(--accent) 55%, transparent); background: color-mix(in srgb, var(--accent) 6%, transparent); }
.toggle input { appearance: none; flex-shrink: 0; position: relative; width: 34px; height: 20px; margin: 0; border-radius: 999px; background: color-mix(in srgb, var(--text) 18%, transparent); cursor: pointer; transition: background-color 0.15s ease; }
.toggle input::after { content: ""; position: absolute; top: 3px; left: 3px; width: 14px; height: 14px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25); transition: transform 0.15s ease; }
.toggle input:checked { background: var(--accent); }
.toggle input:checked::after { transform: translateX(14px); }
.toggle span { display: grid; font-size: 14.5px; font-weight: 600; line-height: 1.3; }
.toggle small { color: var(--muted); font-size: 12.5px; font-weight: 500; }

.builder-output { position: sticky; top: 84px; }
.output-card { border-radius: var(--radius); background: var(--term-bg); color: var(--term-text); box-shadow: 0 30px 80px -24px rgba(8, 20, 40, 0.45); overflow: hidden; }
.output-head { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; background: var(--term-bar); color: var(--term-dim); font-size: 13px; font-weight: 600; }
.output-head .copy-btn { background: transparent; border-color: rgba(255, 255, 255, 0.16); color: var(--term-dim); }
.output-head .copy-btn:hover { color: var(--term-text); }
.command { margin: 0; padding: 20px 18px; font-size: 15px; line-height: 1.65; white-space: pre-wrap; word-break: break-word; }
.command::before { content: "$ "; color: var(--term-dim); }
.tok-cmd { color: var(--term-green); font-weight: 700; }
.tok-flag { color: var(--term-accent); }
.tok-val { color: var(--term-yellow); }
.explain { display: grid; gap: 10px; margin: 0; padding: 0 18px 20px; list-style: none; }
.explain li { display: grid; grid-template-columns: minmax(96px, auto) 1fr; gap: 12px; padding-top: 10px; border-top: 1px solid rgba(255, 255, 255, 0.07); font-size: 14px; color: #bdbdb7; }
.explain code { color: var(--term-accent); font-size: 13px; }
.explain li.enter { animation: slide-in 0.25s ease; }
.explain li.warn { color: #f5d27f; }
.explain li.warn code { color: var(--term-yellow); }

/* Multi-command builder: command picker, per-command panels, conditional fields. */
.segmented.commands { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.panel { display: grid; gap: 14px; min-width: 0; }
.span-2 { grid-column: 1 / -1; }
.spaced { margin-top: 14px; }
.field-hint { margin-left: 4px; color: var(--muted); font-size: 12px; font-weight: 500; }
.field-label { display: block; font-size: 13.5px; font-weight: 600; color: var(--text-2); }
.field-label + .chips { margin-top: 8px; }
.fieldset-note { margin-bottom: 12px; color: var(--muted); font-size: 14px; }
.numbers.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.subfields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
  padding: 14px;
  border-radius: 10px;
  border: 1px dashed color-mix(in srgb, var(--accent) 35%, var(--border));
  background: color-mix(in srgb, var(--accent) 4%, transparent);
}
.subfields .field, .advanced-grid .field { margin-top: 0; }
.advanced { border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); }
.advanced summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  list-style: none;
}
.advanced summary::-webkit-details-marker { display: none; }
.advanced summary::after { content: "+"; font-size: 18px; line-height: 1; }
.advanced[open] summary::after { content: "−"; }
.advanced-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; padding: 0 20px 20px; }

@media (max-width: 760px) {
  .segmented.commands { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px; }
  .subfields, .advanced-grid { grid-template-columns: minmax(0, 1fr); }
}
@keyframes slide-in { from { opacity: 0; transform: translateY(-4px); } }

/* --------------------------------------------------------- changes */

.changes-grid { display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: 56px; align-items: start; }
.changes-card { border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); box-shadow: var(--shadow); overflow: hidden; }
.filter { display: flex; flex-wrap: wrap; gap: 8px; padding: 14px 16px; border-bottom: 1px solid var(--border); }
.filter .chip span { color: var(--muted); font-variant-numeric: tabular-nums; }
.filter .chip[aria-pressed="true"] { background: var(--text); border-color: var(--text); color: var(--bg); }
.filter .chip[aria-pressed="true"] span { color: color-mix(in srgb, var(--bg) 70%, transparent); }
.change-list { margin: 0; padding: 0; list-style: none; }
.change-list li { display: grid; grid-template-columns: 76px 1fr; gap: 14px; align-items: start; padding: 13px 18px; border-top: 1px solid var(--border); }
.change-list li:first-child { border-top: 0; }
.change-list strong { font-size: 15px; }
.change-list p { color: var(--text-2); font-size: 14px; }
.sev { justify-self: start; margin-top: 2px; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.sev.critical { color: var(--critical); background: color-mix(in srgb, var(--critical) 13%, transparent); }
.sev.warning { color: var(--warning); background: color-mix(in srgb, var(--warning) 15%, transparent); }
.sev.info { color: var(--info); background: color-mix(in srgb, var(--info) 13%, transparent); }

/* ------------------------------------------------------- dashboard */

.browser { margin-top: 44px; border-color: var(--border-strong); }
.browser-bar .address { display: inline-flex; justify-content: center; align-items: center; gap: 8px; max-width: 420px; margin: 0 auto; padding: 3px 12px; border-radius: 7px; background: rgba(255, 255, 255, 0.06); font-family: var(--mono); font-size: 12px; }
.browser-bar .address span { padding: 0 6px; border-radius: 4px; background: color-mix(in srgb, var(--term-accent) 22%, transparent); color: var(--term-accent); font-family: var(--font); font-size: 11px; font-weight: 700; }
.browser iframe { display: block; width: 100%; height: 640px; border: 0; background: var(--bg); }

/* -------------------------------------------------------- releases */

.release-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 44px; }
.release { display: flex; flex-direction: column; gap: 12px; padding: 22px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); }
.release-top { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.release-top a { font-size: 19px; font-weight: 750; letter-spacing: -0.02em; text-decoration: none; color: var(--text); }
.release-top a:hover { color: var(--accent); }
.release-top time { color: var(--muted); font-size: 13px; white-space: nowrap; }
.release h4 { margin: 4px 0 0; color: var(--muted); font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.release ul { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.release li { color: var(--text-2); font-size: 14.5px; line-height: 1.5; }
.release li .scope { margin-right: 6px; padding: 1px 7px; border-radius: 6px; background: color-mix(in srgb, var(--accent) 11%, transparent); color: var(--accent); font-size: 12px; font-weight: 700; }
.release li a { margin-left: 4px; font-size: 13px; }
.release.latest { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); box-shadow: var(--shadow); }
.release.latest .release-top a::after { content: "Latest"; margin-left: 10px; padding: 2px 8px; border-radius: 999px; background: color-mix(in srgb, var(--active) 14%, transparent); color: var(--active); font-size: 11.5px; font-weight: 700; letter-spacing: 0; vertical-align: 3px; }
.release.skeleton span { display: block; height: 14px; border-radius: 6px; background: color-mix(in srgb, var(--text) 8%, transparent); animation: shimmer 1.4s ease-in-out infinite; }
.release.skeleton span:first-child { width: 40%; height: 20px; }
.release.skeleton span:nth-child(2) { width: 90%; }
.release.skeleton span:nth-child(3) { width: 70%; }
@keyframes shimmer { 50% { opacity: 0.45; } }
.release-error { grid-column: 1 / -1; padding: 22px; border-radius: var(--radius); border: 1px dashed var(--border-strong); color: var(--text-2); }
.more-link { margin-top: 20px; font-weight: 600; }

/* ------------------------------------------------------------- faq */

.faq-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 56px; align-items: start; }
.faq details { border-bottom: 1px solid var(--border); }
.faq details:first-child { border-top: 1px solid var(--border); }
.faq summary { display: flex; justify-content: space-between; gap: 16px; padding: 18px 2px; font-size: 16.5px; font-weight: 600; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; flex-shrink: 0; color: var(--muted); font-size: 22px; line-height: 1; transition: transform 0.2s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 2px 20px; color: var(--text-2); }

/* ------------------------------------------------------ final + foot */

.final-cta { padding-block: 96px 80px; text-align: center; }
.final-cta h2 { font-size: clamp(30px, 4vw, 48px); letter-spacing: -0.04em; }
.final-cta .copy-line { margin-top: 26px; }
.responsible { max-width: 520px; margin: 22px auto 0; color: var(--muted); font-size: 14px; }

.footer { border-top: 1px solid var(--border); padding-block: 28px; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.footer-links a { color: var(--text-2); font-size: 14px; text-decoration: none; }
.footer-links a:hover { color: var(--text); }

/* ---------------------------------------------------------- motion */

.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1); }
.js .reveal.in { opacity: 1; transform: none; }
.feature-grid .reveal:nth-child(3n + 2) { transition-delay: 0.06s; }
.feature-grid .reveal:nth-child(3n) { transition-delay: 0.12s; }

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

/* ------------------------------------------------------ responsive */

/* minmax(0, 1fr), not 1fr: a bare 1fr column grows to fit long unbreakable
   content (install commands, the terminal) and pushes the page sideways. */
@media (max-width: 1040px) {
  .topnav a:nth-child(n + 5) { display: none; }
  .hero-grid, .install-grid, .changes-grid, .faq-grid { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .builder { grid-template-columns: minmax(0, 1fr); }
  .builder-output { position: static; }
  .feature-grid, .release-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .wrap { padding-inline: 18px; }
  .topnav { display: none; }
  .topbar-inner { justify-content: space-between; }
  .hero { padding: 28px 0 48px; }
  .lede { font-size: 16.5px; }
  .terminal-body { min-height: 380px; font-size: 11px; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 16px; }
  .stat, .stat:first-child { padding: 16px 0; border-left: 0; border-top: 1px solid var(--border); }
  .section { padding: 64px 0; }
  .feature-grid, .release-grid, .toggles { grid-template-columns: minmax(0, 1fr); }
  .numbers { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .browser iframe { height: 520px; }
  .explain li { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .change-list li { grid-template-columns: 70px minmax(0, 1fr); padding-inline: 14px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 420px) {
  .gh-link span:not(.gh-stars) { display: none; }
  .copy-line { display: flex; }
  .copy-line code { min-width: 0; }
}