/* ========================================================================
   Endiorbot — Landing styles
   Aesthetic: editorial dark + terminal accents, warm amber accent
   ======================================================================== */

:root {
  /* Default theme: warm-amber on near-black */
  --bg: #0b0b0c;
  --bg-1: #111113;
  --bg-2: #161618;
  --bg-3: #1d1d20;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --ink: #f4f1ea;
  --ink-2: #b9b4a8;
  --ink-3: #7a766c;
  --accent: #f5a524;          /* warm amber */
  --accent-2: #ffc36b;
  --accent-soft: rgba(245, 165, 36, 0.12);
  --term: #6ee787;            /* terminal green */
  --term-soft: rgba(110, 231, 135, 0.12);
  --danger: #ff6b6b;
  --violet: #b59cff;

  --font-sans: "Inter Tight", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-display: "Fraunces", "Inter Tight", Georgia, serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", "Cascadia Code", ui-monospace, monospace;

  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 22px;

  --pad-x: clamp(20px, 4vw, 56px);
}

/* Theme: terminal green on black */
[data-theme="terminal"] {
  --bg: #050606;
  --bg-1: #0b0d0c;
  --bg-2: #11140f;
  --bg-3: #181c14;
  --ink: #e8efe2;
  --ink-2: #9cb09a;
  --ink-3: #5e7060;
  --accent: #6ee787;
  --accent-2: #a3f5b4;
  --accent-soft: rgba(110, 231, 135, 0.12);
  --term: #6ee787;
}

/* Theme: paper (light, warm) */
[data-theme="paper"] {
  --bg: #f4efe6;
  --bg-1: #ebe5d8;
  --bg-2: #e2dac9;
  --bg-3: #d4cab6;
  --line: rgba(0, 0, 0, 0.10);
  --line-2: rgba(0, 0, 0, 0.18);
  --ink: #1a1814;
  --ink-2: #4a4639;
  --ink-3: #807a68;
  --accent: #c4541a;
  --accent-2: #e0712f;
  --accent-soft: rgba(196, 84, 26, 0.10);
  --term: #2e7d3a;
}

/* Theme: cool blue OSS-classic */
[data-theme="cobalt"] {
  --bg: #07090f;
  --bg-1: #0d1119;
  --bg-2: #131826;
  --bg-3: #1b2236;
  --ink: #eaf0fa;
  --ink-2: #a9b6cc;
  --ink-3: #6e7a91;
  --accent: #6ea8ff;
  --accent-2: #9cc1ff;
  --accent-soft: rgba(110, 168, 255, 0.12);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
hr { border: 0; border-top: 1px solid var(--line); margin: 0; }

/* ---- Layout ---- */
.shell { width: 100%; max-width: 1280px; margin: 0 auto; padding-left: var(--pad-x); padding-right: var(--pad-x); }
.row { display: flex; align-items: center; }
.col { display: flex; flex-direction: column; }
.gap-1 { gap: 4px; }  .gap-2 { gap: 8px; } .gap-3 { gap: 12px; } .gap-4 { gap: 16px; } .gap-6 { gap: 24px; } .gap-8 { gap: 32px; }
.mono { font-family: var(--font-mono); font-feature-settings: "ss02"; }
.muted { color: var(--ink-2); }
.dim { color: var(--ink-3); }

/* ---- Type ---- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.eyebrow .dot {
  display: inline-block;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  margin-right: 8px; vertical-align: middle;
  box-shadow: 0 0 0 4px var(--accent-soft);
}

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; letter-spacing: -0.02em; line-height: 1.05; margin: 0; }
.display {
  font-size: clamp(54px, 8vw, 124px);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 0.96;
}
.display em { font-style: italic; font-weight: 300; color: var(--accent); }
h2.section-h { font-size: clamp(34px, 4.4vw, 60px); letter-spacing: -0.025em; }
h2.section-h em { font-style: italic; color: var(--accent); font-weight: 400; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 18px; border-radius: 999px;
  font-size: 14px; font-weight: 500; letter-spacing: -0.01em;
  border: 1px solid transparent;
  transition: transform 0.12s ease, background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #1a1306; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-2); }
.btn-ghost { color: var(--ink); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--ink-2); background: var(--bg-1); }
.btn-link { color: var(--ink-2); padding: 8px 0; gap: 6px; }
.btn-link:hover { color: var(--ink); }
.btn .arr { transition: transform 0.18s ease; }
.btn:hover .arr { transform: translateX(3px); }

/* ---- Pill / chip ---- */
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--line-2);
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.04em;
  color: var(--ink-2);
  background: var(--bg-1);
}
.pill .live { width: 6px; height: 6px; border-radius: 50%; background: var(--term); box-shadow: 0 0 0 4px var(--term-soft); animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .6; transform: scale(0.85); }
}

/* ---- Nav ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { color: var(--ink-2); font-size: 14px; }
.nav-links a:hover { color: var(--ink); }
.nav-actions { display: flex; align-items: center; gap: 10px; }

.brandmark { display: flex; align-items: center; gap: 10px; }
.brand-glyph {
  width: 28px; height: 28px;
  display: grid; place-items: center;
  position: relative;
}
.brand-name { font-family: var(--font-display); font-size: 19px; font-weight: 500; letter-spacing: -0.015em; }
.brand-name .dot-orbit { color: var(--accent); }

/* Lang toggle */
.lang {
  display: inline-flex; border: 1px solid var(--line-2); border-radius: 999px;
  padding: 3px; font-family: var(--font-mono); font-size: 11px;
}
.lang button { padding: 4px 10px; border-radius: 999px; color: var(--ink-3); letter-spacing: 0.05em; }
.lang button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }

/* ---- Hero ---- */
.hero { position: relative; padding-top: clamp(60px, 8vw, 110px); padding-bottom: clamp(60px, 8vw, 110px); overflow: hidden; }
.hero-grid {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(36px, 5vw, 80px);
  align-items: end;
}
.hero-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
.hero h1 { margin-bottom: 28px; }
.hero-sub {
  font-size: clamp(16px, 1.4vw, 19px);
  color: var(--ink-2);
  max-width: 52ch;
  margin-bottom: 36px;
  text-wrap: pretty;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

/* Install bar */
.install {
  display: flex; align-items: center; gap: 12px;
  background: var(--bg-1);
  border: 1px solid var(--line-2);
  border-radius: 12px;
  padding: 6px 6px 6px 14px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--ink);
  max-width: 100%;
}
.install .prompt { color: var(--accent); user-select: none; }
.install .cmd { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.install button.copy {
  font-family: var(--font-mono);
  font-size: 11.5px; letter-spacing: 0.06em;
  padding: 8px 12px; border-radius: 8px;
  background: var(--bg-3); color: var(--ink-2);
  border: 1px solid var(--line);
}
.install button.copy:hover { color: var(--ink); border-color: var(--line-2); }
.install button.copy.copied { color: var(--term); border-color: var(--term); }

/* Hero stats strip */
.hero-strip {
  margin-top: 64px;
  display: grid; grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.hero-strip > div {
  padding: 22px 24px;
  border-right: 1px solid var(--line);
}
.hero-strip > div:last-child { border-right: 0; }
.hero-strip .num {
  font-family: var(--font-display);
  font-size: clamp(32px, 3.6vw, 48px);
  font-weight: 400; letter-spacing: -0.02em;
}
.hero-strip .num .accent { color: var(--accent); }
.hero-strip .lbl {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-3); margin-top: 6px;
}

/* Hero atmosphere */
.hero::before {
  content: "";
  position: absolute; inset: -60% -20% auto auto;
  width: 80vw; height: 80vw;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 55%);
  pointer-events: none;
  filter: blur(20px);
}

/* ---- Terminal ---- */
.terminal {
  background: var(--bg-1);
  border: 1px solid var(--line-2);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.02) inset;
  font-family: var(--font-mono); font-size: 13px; line-height: 1.7;
}
.terminal-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
}
.terminal-bar .dots { display: flex; gap: 6px; }
.terminal-bar .dots span { width: 11px; height: 11px; border-radius: 50%; background: var(--bg-3); }
.terminal-bar .dots span:nth-child(1) { background: #ff5f57; }
.terminal-bar .dots span:nth-child(2) { background: #febc2e; }
.terminal-bar .dots span:nth-child(3) { background: #28c840; }
.terminal-bar .title { flex: 1; text-align: center; color: var(--ink-3); font-size: 11.5px; letter-spacing: 0.05em; }
.terminal-body { padding: 18px 22px; min-height: 380px; }
.terminal-body .line { display: block; min-height: 1.7em; }
.terminal-body .prompt { color: var(--accent); }
.terminal-body .at-agent { color: var(--violet); }
.terminal-body .ok { color: var(--term); }
.terminal-body .comment { color: var(--ink-3); }
.terminal-body .arrow { color: var(--ink-3); }
.terminal-body .keyw { color: var(--accent-2); }
.terminal-body .caret {
  display: inline-block; width: 8px; height: 16px;
  background: var(--ink); vertical-align: -3px;
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---- Generic section ---- */
section { padding: clamp(80px, 9vw, 130px) 0; }
.section-head { margin-bottom: clamp(36px, 4vw, 64px); display: flex; flex-direction: column; gap: 16px; max-width: 880px; }
.section-head .lede { font-size: clamp(16px, 1.3vw, 18px); color: var(--ink-2); max-width: 56ch; text-wrap: pretty; }

.section-divider { border-top: 1px solid var(--line); }

/* ---- Channels ---- */
.channels-row {
  display: grid; grid-template-columns: repeat(5, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-1);
}
.channel-cell {
  padding: 28px 24px;
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 14px;
  min-height: 180px;
  transition: background 0.2s;
}
.channel-cell:last-child { border-right: 0; }
.channel-cell:hover { background: var(--bg-2); }
.channel-cell .ico { width: 28px; height: 28px; color: var(--accent); }
.channel-cell .name { font-family: var(--font-display); font-size: 22px; letter-spacing: -0.02em; }
.channel-cell .desc { color: var(--ink-2); font-size: 13.5px; }
.channel-cell code { font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-3); margin-top: auto; }

/* ---- Agents ---- */
.agents-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.agent-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 18px 18px 16px;
  background: var(--bg-1);
  transition: border-color 0.18s, transform 0.18s;
  display: flex; flex-direction: column; gap: 8px;
  min-height: 132px;
}
.agent-card:hover { border-color: var(--line-2); transform: translateY(-2px); }
.agent-card.tier-1 { box-shadow: inset 3px 0 0 var(--accent); }
.agent-card.tier-2 { box-shadow: inset 3px 0 0 var(--violet); }
.agent-card.tier-3 { box-shadow: inset 3px 0 0 var(--ink-3); }
.agent-card .at { font-family: var(--font-mono); font-size: 14px; color: var(--ink); }
.agent-card .at::before { content: "@"; color: var(--accent); }
.agent-card .role { font-size: 11.5px; color: var(--ink-3); font-family: var(--font-mono); letter-spacing: 0.05em; text-transform: uppercase; }
.agent-card .use { font-size: 13px; color: var(--ink-2); margin-top: auto; }
.agent-card .tier {
  position: absolute; top: 14px; right: 14px;
  font-family: var(--font-mono); font-size: 10px;
  color: var(--ink-3); letter-spacing: 0.05em;
}
.agents-legend { display: flex; flex-wrap: wrap; gap: 18px; margin-bottom: 28px; font-family: var(--font-mono); font-size: 12px; color: var(--ink-2); }
.agents-legend span { display: inline-flex; align-items: center; gap: 8px; }
.agents-legend i { width: 10px; height: 10px; border-radius: 2px; display: inline-block; }
.agents-legend .l1 { background: var(--accent); }
.agents-legend .l2 { background: var(--violet); }
.agents-legend .l3 { background: var(--ink-3); }

/* ---- Architecture ---- */
.arch-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-1);
  overflow: hidden;
}
.arch-svg-wrap { padding: 36px clamp(20px, 3vw, 48px); position: relative; }
.arch-legend {
  border-top: 1px solid var(--line);
  padding: 16px clamp(20px, 3vw, 36px);
  display: flex; flex-wrap: wrap; gap: 24px;
  font-family: var(--font-mono); font-size: 12px; color: var(--ink-2);
  background: var(--bg-2);
}
.arch-legend strong { color: var(--ink); font-weight: 500; }

/* ---- Multi-model ---- */
.mm-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: stretch;
}
.mm-card {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 28px;
  display: flex; flex-direction: column; gap: 18px;
}
.mm-card h3 { font-size: 26px; }
.mm-card .label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; color: var(--ink-3); text-transform: uppercase; }
.mm-providers { display: flex; flex-wrap: wrap; gap: 8px; }
.mm-prov {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 999px;
  border: 1px solid var(--line-2);
  font-family: var(--font-mono); font-size: 12px;
  background: var(--bg-2);
}
.mm-prov i { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.mm-prov.alt i { background: var(--violet); }
.mm-prov.alt2 i { background: var(--term); }
.mm-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-top: 1px dashed var(--line); }
.mm-row:first-of-type { border-top: 0; }
.mm-row .who { font-family: var(--font-mono); font-size: 12.5px; color: var(--ink); width: 100px; flex-shrink: 0; }
.mm-row .what { font-size: 13.5px; color: var(--ink-2); flex: 1; }
.mm-row .ms { font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); }

/* ---- Before/After ---- */
.ba-wrap {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden;
}
.ba-side { padding: clamp(28px, 3vw, 44px); display: flex; flex-direction: column; gap: 16px; min-height: 360px; }
.ba-before { background: var(--bg-1); border-right: 1px solid var(--line); }
.ba-after { background: linear-gradient(135deg, var(--bg-1), color-mix(in srgb, var(--accent-soft) 70%, var(--bg-1))); position: relative; }
.ba-side .clock { font-family: var(--font-display); font-size: clamp(48px, 6vw, 88px); letter-spacing: -0.03em; line-height: 1; }
.ba-after .clock { color: var(--accent); }
.ba-side .clock .unit { font-family: var(--font-mono); font-size: 0.28em; color: var(--ink-3); letter-spacing: 0.1em; vertical-align: 0.6em; margin-left: 4px; }
.ba-side ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.ba-side li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--ink-2); }
.ba-side li .mark { font-family: var(--font-mono); color: var(--ink-3); width: 16px; flex-shrink: 0; }
.ba-after li .mark { color: var(--accent); }

/* ---- SDLC ---- */
.sdlc-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: start; }
.pillars { display: flex; flex-wrap: wrap; gap: 8px; }
.pillars .p {
  padding: 9px 14px; border-radius: 999px;
  border: 1px dashed var(--line-2);
  font-family: var(--font-mono); font-size: 12px; color: var(--ink-2);
  background: var(--bg-1);
}
.pillars .p strong { color: var(--accent); font-weight: 500; }
.gates {
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: var(--bg-1); padding: 24px;
  display: flex; flex-direction: column; gap: 12px;
}
.gates h4 { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin: 0; font-weight: 500; }
.gate-row { display: flex; align-items: center; gap: 14px; padding: 12px 0; border-top: 1px dashed var(--line); }
.gate-row:first-of-type { border-top: 0; }
.gate-row .gid {
  width: 38px; height: 38px; border-radius: 8px;
  display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 13px;
  background: var(--bg-3); color: var(--accent); border: 1px solid var(--line);
  flex-shrink: 0;
}
.gate-row .gname { font-size: 14px; color: var(--ink); }
.gate-row .gdesc { font-size: 12.5px; color: var(--ink-3); }

/* ---- Quickstart ---- */
.qs-tabs { display: flex; gap: 4px; padding: 4px; background: var(--bg-1); border: 1px solid var(--line); border-radius: 10px; width: fit-content; margin-bottom: 20px; }
.qs-tabs button {
  padding: 8px 16px; border-radius: 7px;
  font-family: var(--font-mono); font-size: 12px;
  color: var(--ink-3); letter-spacing: 0.04em;
}
.qs-tabs button[aria-selected="true"] { background: var(--bg-3); color: var(--ink); }
.qs-block {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  font-family: var(--font-mono); font-size: 13.5px; line-height: 1.85;
  overflow-x: auto;
}
.qs-block .c { color: var(--ink-3); }
.qs-block .p { color: var(--accent); }
.qs-block .o { color: var(--term); }
.qs-block .k { color: var(--accent-2); }

/* ---- Roadmap / Sprint ---- */
.sprint-wrap { display: grid; grid-template-columns: 1.1fr 1fr; gap: 36px; }
.sprint-card {
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 28px; background: var(--bg-1);
  display: flex; flex-direction: column; gap: 14px;
}
.sprint-card .hd { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.sprint-card .num {
  font-family: var(--font-display); font-size: 56px; letter-spacing: -0.03em; line-height: 1;
}
.sprint-card .num em { color: var(--accent); font-style: normal; }
.sprint-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; }
.sprint-list li {
  display: flex; gap: 14px; padding: 12px 0;
  border-top: 1px dashed var(--line);
  font-size: 13.5px; color: var(--ink-2);
}
.sprint-list li:first-child { border-top: 0; }
.sprint-list li .tag { font-family: var(--font-mono); font-size: 10.5px; color: var(--accent); width: 54px; flex-shrink: 0; padding-top: 1px; letter-spacing: 0.04em; }
.sprint-list li strong { color: var(--ink); font-weight: 500; }

.timeline { display: flex; flex-direction: column; gap: 0; }
.timeline-item {
  display: grid; grid-template-columns: 80px 1fr; gap: 18px;
  padding: 16px 0; border-top: 1px solid var(--line);
}
.timeline-item:first-child { border-top: 0; }
.timeline-item .ver { font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-3); padding-top: 3px; letter-spacing: 0.04em; }
.timeline-item h4 { font-family: var(--font-sans); font-size: 15px; font-weight: 500; letter-spacing: -0.005em; color: var(--ink); margin: 0 0 4px; }
.timeline-item p { margin: 0; font-size: 13px; color: var(--ink-2); }
.timeline-item.now h4::after { content: "now"; font-family: var(--font-mono); font-size: 9px; padding: 2px 6px; border-radius: 999px; background: var(--accent); color: #1a1306; margin-left: 8px; vertical-align: 1px; letter-spacing: 0.05em; }

/* ---- OSS / Contributing ---- */
.oss-wrap {
  position: relative;
  border: 1px solid var(--line); border-radius: var(--radius-xl);
  padding: clamp(36px, 5vw, 64px);
  background:
    radial-gradient(circle at 80% 20%, var(--accent-soft) 0%, transparent 50%),
    var(--bg-1);
  overflow: hidden;
}
.oss-wrap h2 { max-width: 18ch; }
.oss-meta { display: flex; gap: 28px; flex-wrap: wrap; margin-top: 8px; font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-2); }
.oss-meta span { display: inline-flex; align-items: center; gap: 8px; }
.oss-meta strong { color: var(--ink); font-weight: 500; }

.oss-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.contrib-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 40px; }
.contrib-card {
  background: var(--bg-2); border: 1px solid var(--line);
  padding: 22px; border-radius: var(--radius-md);
  display: flex; flex-direction: column; gap: 8px;
}
.contrib-card .num { font-family: var(--font-mono); font-size: 11px; color: var(--accent); letter-spacing: 0.1em; }
.contrib-card h4 { font-family: var(--font-sans); font-size: 16px; font-weight: 500; margin: 0; color: var(--ink); }
.contrib-card p { font-size: 13px; color: var(--ink-2); margin: 0; }

/* ---- FAQ ---- */
.faq-wrap { display: flex; flex-direction: column; }
.faq-item {
  border-top: 1px solid var(--line);
  padding: 4px 0;
}
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; text-align: left;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 4px; gap: 24px;
  font-family: var(--font-display); font-size: clamp(18px, 1.7vw, 22px); letter-spacing: -0.015em;
  color: var(--ink); cursor: pointer;
}
.faq-q .marker { font-family: var(--font-mono); font-size: 18px; color: var(--accent); transition: transform 0.2s ease; }
.faq-item[data-open="true"] .marker { transform: rotate(45deg); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.3s ease;
  color: var(--ink-2);
  font-size: 14.5px; line-height: 1.65;
  padding: 0 4px;
}
.faq-item[data-open="true"] .faq-a { max-height: 400px; padding-bottom: 22px; }

/* ---- Footer ---- */
footer.foot { padding: 80px 0 48px; border-top: 1px solid var(--line); }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 36px; margin-bottom: 48px; }
.foot-col h5 { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); margin: 0 0 16px; font-weight: 500; }
.foot-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.foot-col a { font-size: 13.5px; color: var(--ink-2); }
.foot-col a:hover { color: var(--ink); }
.foot-tag { font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); margin-top: 16px; max-width: 36ch; }
.foot-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 28px; border-top: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.04em;
}

/* ---- Density / compact mode ---- */
[data-density="compact"] section { padding: clamp(56px, 6vw, 88px) 0; }
[data-density="compact"] .hero { padding-top: clamp(40px, 5vw, 80px); padding-bottom: clamp(40px, 5vw, 80px); }
[data-density="compact"] .display { font-size: clamp(44px, 6.5vw, 96px); }

/* ---- Responsive ---- */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-strip { grid-template-columns: repeat(5, 1fr); }
  .channels-row { grid-template-columns: repeat(5, minmax(160px, 1fr)); overflow-x: auto; }
  .agents-grid { grid-template-columns: repeat(3, 1fr); }
  .mm-grid, .sdlc-grid, .sprint-wrap { grid-template-columns: 1fr; }
  .ba-wrap { grid-template-columns: 1fr; }
  .ba-before { border-right: 0; border-bottom: 1px solid var(--line); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .contrib-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav-links { display: none; }
  .hero-strip { grid-template-columns: repeat(2, 1fr); }
  .hero-strip > div { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .agents-grid { grid-template-columns: repeat(2, 1fr); }
  .channels-row { grid-template-columns: repeat(5, minmax(140px, 1fr)); }
  .foot-grid { grid-template-columns: 1fr; }
}