:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-2: #f1f3f9;
  --border: #e3e6ee;
  --text: #1b2333;
  --muted: #5b6478;
  --primary: #0f6cbd; /* Microsoft 365 Blue */
  --primary-600: #0b5fa6;
  --primary-50: #e6f0fa;
  --teal: #0f766e;
  --green: #107c41;
  --purple: #5c2d91;
  --amber: #b45309;
  --rose: #be185d;
  --shadow: 0 1px 0 rgba(15, 108, 189, 0.06), 0 12px 28px -16px rgba(15, 23, 42, 0.18);
  --radius: 12px;
  --radius-sm: 8px;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-sans: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 20px; }
@media (min-width: 1024px) { .container { padding: 0 32px; } }

.skip-link { position: absolute; left: -1000px; top: 0; }
.skip-link:focus { left: 12px; top: 12px; background: #fff; padding: 8px 12px; border-radius: 6px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 30; background: rgba(255,255,255,0.85); backdrop-filter: saturate(140%) blur(8px); border-bottom: 1px solid var(--border); }
.header-row { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 12px; color: inherit; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 36px; height: 36px; display: grid; place-items: center; background: #ffffff; border: 1px solid var(--border); border-radius: 8px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-title { font-family: var(--font-display); font-weight: 600; font-size: 15px; }
.brand-sub { font-family: var(--font-mono); font-size: 11px; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; }
.site-nav { display: flex; gap: 18px; font-size: 14px; }
.site-nav a { color: var(--muted); }
.site-nav a:hover { color: var(--text); }
.site-nav .ext { color: var(--text); }

/* Hero */
.hero { background: linear-gradient(180deg, #ffffff 0%, var(--bg) 100%); border-bottom: 1px solid var(--border); }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 28px; padding: 56px 0 40px; align-items: end; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 1.4fr 1fr; gap: 48px; padding: 80px 0 56px; } }
.eyebrow { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
h1 { font-family: var(--font-display); font-weight: 600; font-size: clamp(32px, 4.4vw, 50px); line-height: 1.05; letter-spacing: -0.01em; margin: 12px 0 0; }
h1 .accent { color: var(--primary); }
.lead { color: var(--muted); margin-top: 18px; max-width: 60ch; }
.cta-row { margin-top: 24px; display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 8px; border: 1px solid transparent; font-weight: 600; font-size: 14px; cursor: pointer; transition: transform 160ms cubic-bezier(0.23, 1, 0.32, 1), background 160ms ease-out, border-color 160ms ease-out, color 160ms ease-out; background: transparent; }
.btn:active { transform: scale(0.97); }
.btn.primary { background: var(--primary); color: white; }
.btn.primary:hover { background: var(--primary-600); }
.btn.ghost { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn.ghost:hover { border-color: var(--primary); color: var(--primary); }
.link { background: transparent; border: 0; color: var(--primary); cursor: pointer; font: inherit; padding: 0; }
.link:hover { text-decoration: underline; }

.hero-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.card-eyebrow { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.16em; color: var(--muted); }
.search-row { margin-top: 12px; position: relative; }
.search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--muted); }
#search { width: 100%; padding: 12px 12px 12px 34px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface-2); font: inherit; color: var(--text); }
#search:focus { outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px var(--primary-50); }
.quick-stats { margin-top: 16px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; text-align: center; }
.stat { font-family: var(--font-display); font-weight: 600; font-size: 22px; }
.stat-label { font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.14em; color: var(--muted); }

/* Library */
.library { padding: 48px 0 64px; }
.library-grid { display: grid; grid-template-columns: 1fr; gap: 28px; }
@media (min-width: 960px) { .library-grid { grid-template-columns: 260px 1fr; gap: 40px; } }
.filter-eyebrow { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.16em; color: var(--muted); margin-bottom: 10px; }
.categories { display: flex; flex-direction: column; gap: 6px; }
.cat-btn { text-align: left; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; font: inherit; display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.cat-btn:hover { border-color: var(--primary); }
.cat-btn.active { background: var(--primary); border-color: var(--primary); color: white; }
.cat-btn .count { font-family: var(--font-mono); font-size: 10px; opacity: 0.85; }

.result-head { display: flex; align-items: end; justify-content: space-between; margin-bottom: 16px; }
.result-head h2 { font-family: var(--font-display); font-size: 22px; margin: 4px 0 0; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 12px; cursor: pointer; transition: transform 200ms cubic-bezier(0.23, 1, 0.32, 1), border-color 200ms ease-out, box-shadow 200ms ease-out; text-align: left; }
.card:hover { transform: translateY(-2px); border-color: var(--primary); box-shadow: 0 1px 0 rgba(15,108,189,0.10), 0 18px 40px -20px rgba(15,108,189,0.35); }
.card-head { display: flex; gap: 12px; align-items: flex-start; }
.card-icon { width: 48px; height: 48px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface-2); display: block; }
.card-id { font-family: var(--font-mono); font-size: 11px; color: var(--muted); letter-spacing: 0.06em; }
.card-title { font-family: var(--font-display); font-weight: 600; font-size: 16px; line-height: 1.25; margin: 2px 0 0; }
.card-desc { font-size: 14px; color: var(--muted); }
.card-foot { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.02em; color: var(--primary); background: var(--primary-50); border: 1px solid #c7dbef; }

/* Bands */
.band { background: var(--surface); border-top: 1px solid var(--border); padding: 56px 0; }
.band.alt { background: linear-gradient(180deg, #ffffff 0%, #f4f6fb 100%); }
.two-col { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 960px) { .two-col { grid-template-columns: 1.1fr 1fr; gap: 56px; } }
.band h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(24px, 2.4vw, 32px); margin: 12px 0 12px; line-height: 1.2; }
.checklist { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.checklist ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.checklist li { padding: 10px 12px; background: white; border: 1px solid var(--border); border-radius: 10px; }

.m-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin-top: 20px; }
.m-card { background: white; border: 1px solid var(--border); border-radius: 12px; padding: 14px; }
.m-card p { color: var(--muted); margin: 8px 0 0; font-size: 14px; }
.m-pill { display: inline-flex; padding: 4px 10px; border-radius: 999px; font-family: var(--font-mono); font-size: 11px; color: white; }
.m-pill.teal { background: var(--teal); }
.m-pill.blue { background: var(--primary); }
.m-pill.purple { background: var(--purple); }
.m-pill.green { background: var(--green); }
.m-pill.amber { background: var(--amber); }
.m-pill.rose { background: var(--rose); }

/* Footer */
.site-footer { background: #0e1a33; color: #cbd5e1; padding: 36px 0 28px; margin-top: 24px; }
.site-footer .brand-title { color: white; }
.site-footer a { color: #93c5fd; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 720px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1.2fr; gap: 40px; } }
.site-footer ul { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 4px; }
.site-footer .muted { color: #9aa5b4; }
.site-footer .small { font-size: 13px; }
.site-footer .xsmall { font-size: 11.5px; color: #7c8aa0; }

/* Utilities */
.muted { color: var(--muted); }
.mono { font-family: var(--font-mono); }
.small { font-size: 13px; }
.xsmall { font-size: 11.5px; }

/* Detail dialog */
.detail { border: 0; border-radius: 18px; padding: 0; max-width: 920px; width: calc(100% - 32px); background: var(--surface); color: var(--text); box-shadow: 0 30px 60px -20px rgba(15,23,42,0.4); }
.detail::backdrop { background: rgba(11, 18, 32, 0.55); }
.detail[open] { animation: fadeIn 200ms cubic-bezier(0.23, 1, 0.32, 1); }
@keyframes fadeIn { from { opacity: 0; transform: scale(0.97); } to { opacity: 1; transform: scale(1); } }
.detail-inner { padding: 24px; max-height: 84vh; overflow: auto; }
.detail-head { display: flex; gap: 16px; align-items: flex-start; justify-content: space-between; }
.detail-id { display: flex; gap: 14px; }
.detail-id img { width: 64px; height: 64px; border-radius: 12px; border: 1px solid var(--border); background: var(--surface-2); }
.detail-id h2 { margin: 4px 0 4px; font-family: var(--font-display); font-size: 22px; }
.detail-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 12px 0; border-top: 1px dashed var(--border); border-bottom: 1px dashed var(--border); margin: 16px 0; }
.detail-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.tabs { margin-top: 18px; }
.tab-buttons { display: flex; gap: 4px; border-bottom: 1px solid var(--border); }
.tab { background: transparent; border: 0; padding: 10px 12px; font: inherit; color: var(--muted); cursor: pointer; border-bottom: 2px solid transparent; }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-panel { padding: 14px 2px; }
.prompt { white-space: pre-wrap; font-family: var(--font-mono); font-size: 13px; line-height: 1.55; background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px; padding: 16px; max-height: 50vh; overflow: auto; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}


/* --- Langdock import section additions --- */
.detail-meta { grid-template-columns: 1fr 1fr 1fr; }
.detail-meta .emoji { font-size: 24px; line-height: 1; }
.steps { display: grid; grid-template-columns: 1fr; gap: 18px; margin-top: 18px; }
@media (min-width: 860px) { .steps { grid-template-columns: repeat(3, 1fr); gap: 22px; } }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; position: relative; box-shadow: var(--shadow); }
.step h3 { font-family: var(--font-display); font-size: 18px; margin: 8px 0 6px; }
.step-num { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 999px; background: var(--primary-50); color: var(--primary-600); font-family: var(--font-mono); font-size: 13px; font-weight: 600; }
.kbd { font-family: var(--font-mono); background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 1px 6px; font-size: 12px; }
.btn.mini { padding: 6px 10px; font-size: 13px; border-radius: 8px; margin-right: 8px; margin-bottom: 6px; display: inline-block; }
.prompt.small { font-size: 12px; padding: 12px; max-height: 220px; }