/* Athena Butler Showcase — design variables are site-specific, not the AI Factory palette. */
:root {
  --bg: #07111f;
  --bg-deep: #040a13;
  --surface: #0c1a2c;
  --surface-2: #10233a;
  --line: rgba(148, 190, 222, 0.18);
  --text: #eef6ff;
  --muted: #a6b8ca;
  --cyan: #63d6e9;
  --blue: #5b8ff9;
  --gold: #f2c879;
  --green: #5ed0a4;
  --violet: #a995ff;
  --slate: #8ea5bb;
  --paused: #99a1ad;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  --radius: 18px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 5%, rgba(91,143,249,.15), transparent 32rem),
    radial-gradient(circle at 85% 22%, rgba(99,214,233,.08), transparent 28rem),
    var(--bg);
  font-family: Inter, "Noto Sans TC", "Microsoft JhengHei", system-ui, -apple-system, sans-serif;
  line-height: 1.65;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.wrap { width: min(calc(100% - 36px), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 999; background: white; color: #111; padding: 8px 12px; border-radius: 8px; }
.skip-link:focus { top: 12px; }

.audience-bar { background: #02060c; border-bottom: 1px solid var(--line); }
.audience-inner { min-height: 48px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.audience-inner > span { color: var(--muted); font-size: 12px; letter-spacing: .08em; }
.audience-tabs { display: inline-flex; gap: 4px; padding: 4px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,.025); }
.audience-tabs a { min-height: 32px; display: inline-flex; align-items: center; padding: 0 13px; border-radius: 8px; color: var(--muted); font-size: 12px; font-weight: 700; text-decoration: none; }
.audience-tabs a:hover { color: var(--text); }
.audience-tabs a.active { color: #06101c; background: linear-gradient(135deg, var(--cyan), var(--gold)); }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(4,10,19,.76); backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; }
.brand-mark, .athena-icon {
  display: block; width: 38px; height: 38px; border-radius: 12px;
  object-fit: cover; border: 1px solid rgba(231,190,106,.48);
  background: var(--surface-2); box-shadow: 0 0 26px rgba(231,190,106,.18);
}
.athena-icon { width: 42px; height: 42px; }
.brand span:last-child { display: grid; line-height: 1.1; }
.brand strong { font-size: 15px; letter-spacing: .06em; }
.brand small { color: var(--muted); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; margin-top: 4px; }
nav { display: flex; gap: 22px; }
nav a { color: var(--muted); font-size: 14px; text-decoration: none; }
nav a:hover, nav a:focus-visible { color: var(--text); }

.hero { position: relative; overflow: hidden; padding: 108px 0 90px; border-bottom: 1px solid var(--line); }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .35;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 52px 52px; mask-image: linear-gradient(to bottom, black, transparent 90%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); align-items: center; gap: 72px; }
.hero-grid > *, .summary-grid > * { min-width: 0; }
.eyebrow { color: var(--cyan); font-size: 12px; font-weight: 750; letter-spacing: .17em; text-transform: uppercase; margin: 0 0 16px; }
.live-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--green); margin-right: 9px; box-shadow: 0 0 0 6px rgba(94,208,164,.10); }
h1 { max-width: 760px; margin: 0; font-size: clamp(42px, 6vw, 76px); line-height: 1.08; letter-spacing: -.045em; }
h1 span { color: transparent; background: linear-gradient(90deg, var(--cyan), #b4c9ff, var(--gold)); background-clip: text; -webkit-background-clip: text; }
.hero-copy { color: var(--muted); max-width: 680px; overflow-wrap: anywhere; font-size: clamp(17px, 2vw, 20px); margin: 28px 0 0; }
.hero-copy strong { color: var(--text); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 19px; border-radius: 12px; font-size: 14px; font-weight: 700; text-decoration: none; }
.button.primary { color: #06111d; background: linear-gradient(135deg, var(--cyan), #a6dbea); }
.button.secondary { color: var(--text); border: 1px solid var(--line); background: rgba(12,26,44,.62); }
.button:hover { transform: translateY(-1px); }
.hero-panel { padding: 26px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(145deg, rgba(16,35,58,.85), rgba(7,17,31,.82)); box-shadow: var(--shadow); }
.panel-kicker { margin: 0 0 18px; color: var(--muted); font: 700 10px/1.2 ui-monospace, Consolas, monospace; letter-spacing: .17em; }
.summary-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.summary-item { min-height: 100px; padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: rgba(4,10,19,.42); }
.summary-item b { display: block; font-size: 30px; line-height: 1; margin-bottom: 9px; }
.summary-item span { color: var(--muted); overflow-wrap: anywhere; font-size: 12px; }
.review-date { color: var(--muted); font-size: 12px; margin: 18px 0 0; }

.section { padding: 92px 0; border-bottom: 1px solid var(--line); }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading h2 { margin: 0 0 12px; font-size: clamp(31px, 4vw, 48px); line-height: 1.15; letter-spacing: -.035em; }
.section-heading > p:last-child, .split-heading > div > p:last-child { color: var(--muted); margin: 0; }
.split-heading { max-width: none; display: flex; align-items: end; justify-content: space-between; gap: 30px; }
.split-heading > div:first-child { max-width: 730px; }

.architecture { max-width: 890px; margin: 46px auto 0; padding: 28px; border-radius: 24px; border: 1px solid var(--line); background: rgba(4,10,19,.54); box-shadow: var(--shadow); }
.arch-layer { display: grid; grid-template-columns: 130px 1fr; align-items: center; gap: 16px; }
.arch-label { color: var(--muted); font: 700 10px/1.2 ui-monospace, Consolas, monospace; letter-spacing: .12em; text-transform: uppercase; }
.arch-node { min-height: 72px; display: flex; align-items: center; gap: 15px; padding: 14px 18px; border: 1px solid rgba(99,214,233,.28); border-radius: 15px; background: linear-gradient(135deg, rgba(99,214,233,.08), rgba(91,143,249,.05)); }
.arch-node strong, .arch-node small { display: block; }
.arch-node small { color: var(--muted); margin-top: 3px; }
.node-icon { display: grid; place-items: center; width: 38px; height: 38px; flex: 0 0 auto; border-radius: 11px; color: var(--cyan); background: rgba(99,214,233,.10); font-weight: 800; }
.arch-core .arch-node { border-color: rgba(242,200,121,.50); background: linear-gradient(135deg, rgba(242,200,121,.12), rgba(91,143,249,.10)); }
.arch-guard .arch-node { border-color: rgba(94,208,164,.34); }
.arch-arrow { width: calc(100% - 146px); margin-left: 146px; color: var(--slate); text-align: center; line-height: 30px; }
.cluster { flex-wrap: wrap; gap: 8px; }
.cluster span { padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; color: #d9e8f6; background: rgba(7,17,31,.65); font-size: 12px; }
.service-cluster span { border-color: rgba(169,149,255,.25); }
.tools-cluster span { border-color: rgba(91,143,249,.28); }

.filters { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.filter-button { min-height: 38px; border: 1px solid var(--line); border-radius: 999px; padding: 0 14px; color: var(--muted); background: rgba(12,26,44,.5); cursor: pointer; font: inherit; font-size: 13px; }
.filter-button:hover, .filter-button:focus-visible, .filter-button.active { color: var(--text); border-color: rgba(99,214,233,.55); background: rgba(99,214,233,.10); }
.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.module-card { position: relative; display: flex; flex-direction: column; min-height: 100%; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, rgba(16,35,58,.72), rgba(7,17,31,.78)); overflow: hidden; }
.module-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--status-color, var(--slate)); }
.card-top { display: flex; justify-content: space-between; gap: 14px; align-items: flex-start; }
.module-code { color: var(--muted); font: 700 10px/1.2 ui-monospace, Consolas, monospace; letter-spacing: .12em; text-transform: uppercase; }
.status-pill { display: inline-flex; align-items: center; gap: 7px; padding: 5px 9px; border: 1px solid color-mix(in srgb, var(--status-color) 45%, transparent); border-radius: 999px; color: var(--status-color); background: color-mix(in srgb, var(--status-color) 9%, transparent); font-size: 11px; white-space: nowrap; }
.status-pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.module-card h3 { margin: 17px 0 5px; font-size: 23px; letter-spacing: -.02em; }
.module-card .tagline { color: var(--muted); margin: 0 0 18px; }
.feature-list { margin: 0; padding: 0; list-style: none; }
.feature-list li { position: relative; padding-left: 17px; margin: 7px 0; color: #d8e5f0; font-size: 14px; }
.feature-list li::before { content: ""; position: absolute; left: 0; top: .72em; width: 6px; height: 1px; background: var(--status-color, var(--cyan)); }
.module-skills { margin: 18px 0 0; padding-top: 16px; border-top: 1px solid var(--line); }
.module-skills h4 { margin: 0 0 9px; color: var(--muted); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.skill-card { padding: 10px 12px; border: 1px solid rgba(99,214,233,.20); border-radius: 11px; background: rgba(4,10,19,.34); }
.skill-card + .skill-card { margin-top: 7px; }
.skill-card code, .tool-skill-card code { color: #dff8ff; font: 700 12px/1.3 ui-monospace, Consolas, monospace; overflow-wrap: anywhere; }
.skill-card p { color: var(--muted); margin: 5px 0 0; font-size: 12px; line-height: 1.5; }
.skill-empty { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.55; }
.milestone { margin: auto 0 0; padding-top: 18px; color: var(--muted); font-size: 13px; }
.milestone strong { color: var(--text); }
.status-live { --status-color: var(--green); }
.status-partial { --status-color: var(--cyan); }
.status-foundation { --status-color: var(--violet); }
.status-planned { --status-color: var(--gold); }
.status-paused { --status-color: var(--paused); }
.empty-state { color: var(--muted); text-align: center; padding: 50px; }

.platform-section { background: rgba(4,10,19,.32); }
.governance-skills-section { background: linear-gradient(180deg, rgba(94,208,164,.035), rgba(4,10,19,.18)); }
.governance-skill-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.platform-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 13px; }
.platform-card { padding: 20px; border: 1px solid var(--line); border-radius: 16px; background: rgba(12,26,44,.62); }
.platform-icon { display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid rgba(99,214,233,.28); border-radius: 10px; color: var(--cyan); background: rgba(99,214,233,.08); font-weight: 800; }
.platform-card h3 { margin: 16px 0 8px; font-size: 17px; }
.platform-card p { margin: 0 0 14px; color: var(--muted); font-size: 13px; }
.platform-card .status-pill { margin-top: auto; }
.skill-library { margin-top: 62px; }
.subsection-heading { max-width: 700px; margin-bottom: 22px; }
.subsection-heading .eyebrow { margin-bottom: 9px; }
.subsection-heading h3 { margin: 0 0 8px; font-size: 26px; }
.subsection-heading p:last-child { color: var(--muted); margin: 0; }
.tool-skill-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; }
.tool-skill-card { min-width: 0; padding: 17px; border: 1px solid var(--line); border-radius: 14px; background: rgba(12,26,44,.48); }
.skill-card-top { display: flex; justify-content: space-between; gap: 8px; align-items: center; margin-bottom: 13px; }
.skill-group, .skill-type { color: var(--muted); font: 700 10px/1.2 ui-monospace, Consolas, monospace; letter-spacing: .08em; text-transform: uppercase; }
.skill-type { color: var(--cyan); }
.tool-skill-card p { color: var(--muted); margin: 8px 0 0; font-size: 12px; line-height: 1.55; }

.principles-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 13px; }
.principles-grid article { padding: 21px; border-top: 1px solid var(--line); }
.principles-grid span { color: var(--cyan); font: 700 11px/1 ui-monospace, Consolas, monospace; }
.principles-grid h3 { margin: 18px 0 8px; font-size: 17px; }
.principles-grid p { color: var(--muted); margin: 0; font-size: 13px; }

footer { padding: 34px 0; background: var(--bg-deep); }
.footer-wrap { display: flex; justify-content: space-between; gap: 30px; align-items: center; color: var(--muted); font-size: 12px; }
.footer-wrap div { display: grid; }
.footer-wrap strong { color: var(--text); font-size: 16px; }
.footer-wrap p { margin: 0; text-align: right; }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 45px; }
  .platform-grid, .tool-skill-grid, .principles-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .split-heading { align-items: flex-start; flex-direction: column; }
  .filters { justify-content: flex-start; }
}
@media (max-width: 640px) {
  .wrap { width: min(calc(100% - 26px), var(--max)); }
  .audience-inner { align-items: flex-start; flex-direction: column; gap: 7px; padding-block: 10px; }
  .audience-tabs { width: 100%; }
  .audience-tabs a { flex: 1; justify-content: center; }
  nav { display: none; }
  .hero { padding: 74px 0 60px; }
  h1 { font-size: 42px; }
  .hero-panel { padding: 17px; }
  .section { padding: 68px 0; }
  .card-grid, .platform-grid, .tool-skill-grid, .principles-grid { grid-template-columns: 1fr; }
  .architecture { padding: 18px 13px; }
  .arch-layer { grid-template-columns: 1fr; gap: 7px; }
  .arch-label { padding-left: 3px; }
  .arch-arrow { width: 100%; margin-left: 0; }
  .arch-node { padding: 13px; }
  .footer-wrap { align-items: flex-start; flex-direction: column; }
  .footer-wrap p { text-align: left; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}