:root {
  --bg: #0b0f17;
  --bg-2: #111827;
  --card: #141b2b;
  --border: #23304a;
  --text: #e6ebf5;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-2: #a78bfa;
  --accent-3: #34d399;
  --radius: 14px;
  --maxw: 1160px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* Background grid */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1;
  background-image:
    linear-gradient(rgba(56,189,248,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56,189,248,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at top, #000 30%, transparent 75%);
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,15,23,.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--text); font-size: 1.05rem; white-space: nowrap; letter-spacing: -.01em; }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; font-family: var(--mono); font-size: .8rem; color: #0b0f17; font-weight: 800;
}
.nav-links { display: flex; gap: 26px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--muted); font-size: .95rem; font-weight: 500; }
.nav-links a:hover, .nav-links a.active { color: var(--text); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 1px solid var(--border); color: var(--text); border-radius: 8px; padding: 6px 10px; font-size: 1.1rem; cursor: pointer; }

/* Hero */
.hero { padding: 90px 0 70px; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: .8rem; color: var(--accent);
  border: 1px solid var(--border); background: var(--bg-2);
  padding: 6px 14px; border-radius: 999px;
}
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-3); box-shadow: 0 0 10px var(--accent-3); }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); line-height: 1.1; margin: 22px 0 18px; letter-spacing: -.02em; }
.grad { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { color: var(--muted); font-size: 1.15rem; max-width: 680px; margin: 0 auto 32px; }
.cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 10px; font-weight: 600; font-size: .95rem;
  border: 1px solid var(--border); color: var(--text); background: var(--bg-2);
}
.btn:hover { text-decoration: none; border-color: var(--accent); }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #0b0f17; border: none; }
.btn.primary:hover { filter: brightness(1.1); }

.terminal {
  max-width: 720px; margin: 56px auto 0; text-align: left;
  background: #070a10; border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(56,189,248,.08);
  overflow: hidden;
}
.terminal-bar { display: flex; gap: 7px; padding: 12px 14px; border-bottom: 1px solid var(--border); background: var(--bg-2); }
.terminal-bar i { width: 11px; height: 11px; border-radius: 50%; background: #334155; display: block; }
.terminal pre { margin: 0; padding: 20px; font-family: var(--mono); font-size: .88rem; color: #cbd5e1; white-space: pre-wrap; min-height: 150px; }
.terminal .p { color: var(--accent-3); }
.terminal .c { color: var(--accent-2); }
.cursor { display: inline-block; width: 8px; height: 1em; background: var(--accent); vertical-align: text-bottom; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* Sections */
section { padding: 70px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 30px; flex-wrap: wrap; }
.section-head h2 { margin: 0; font-size: 1.9rem; letter-spacing: -.01em; }
.section-head p { margin: 6px 0 0; color: var(--muted); }
.kicker { font-family: var(--mono); color: var(--accent); font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; }

/* Filters */
.filters { display: flex; gap: 8px; flex-wrap: wrap; }
.filter {
  background: var(--bg-2); border: 1px solid var(--border); color: var(--muted);
  padding: 6px 14px; border-radius: 999px; font-size: .85rem; cursor: pointer; font-family: inherit;
}
.filter.active, .filter:hover { color: var(--text); border-color: var(--accent); }

/* Cards */
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; display: flex; flex-direction: column; gap: 12px;
  transition: transform .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-3px); border-color: #3b4f75; }
.card h3 { margin: 0; font-size: 1.15rem; line-height: 1.35; }
.card h3 a { color: var(--text); }
.card p { margin: 0; color: var(--muted); font-size: .95rem; }
.meta { display: flex; gap: 10px; align-items: center; font-size: .8rem; color: var(--muted); font-family: var(--mono); }
.tag { padding: 3px 10px; border-radius: 999px; font-size: .72rem; font-weight: 600; font-family: var(--mono); border: 1px solid; }
.tag.m365 { color: var(--accent); border-color: rgba(56,189,248,.4); background: rgba(56,189,248,.08); }
.tag.github { color: var(--accent-2); border-color: rgba(167,139,250,.4); background: rgba(167,139,250,.08); }
.tag.windows { color: var(--accent-3); border-color: rgba(52,211,153,.4); background: rgba(52,211,153,.08); }
.tag.studio { color: #fbbf24; border-color: rgba(251,191,36,.4); background: rgba(251,191,36,.08); }
.card .more { margin-top: auto; font-weight: 600; font-size: .9rem; }

/* Feature tiles */
.tiles { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.tile { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.tile .icon { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; font-family: var(--mono); font-weight: 700; margin-bottom: 14px; background: var(--bg-2); border: 1px solid var(--border); color: var(--accent); }
.tile h3 { margin: 0 0 8px; font-size: 1.05rem; }
.tile p { margin: 0; color: var(--muted); font-size: .93rem; }

/* Prompt library */
.prompts { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); }
.prompt { background: #070a10; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.prompt-head { display: flex; justify-content: space-between; align-items: center; padding: 10px 16px; border-bottom: 1px solid var(--border); background: var(--bg-2); font-size: .85rem; color: var(--muted); }
.copy { background: none; border: 1px solid var(--border); color: var(--muted); border-radius: 6px; padding: 3px 10px; cursor: pointer; font-size: .78rem; font-family: var(--mono); }
.copy:hover { color: var(--text); border-color: var(--accent); }
.prompt pre { margin: 0; padding: 16px; font-family: var(--mono); font-size: .85rem; color: #cbd5e1; white-space: pre-wrap; }

/* Timeline */
.timeline { border-left: 2px solid var(--border); margin-left: 8px; padding-left: 28px; }
.tl-item { position: relative; padding-bottom: 28px; }
.tl-item::before { content: ""; position: absolute; left: -36px; top: 6px; width: 14px; height: 14px; border-radius: 50%; background: var(--bg); border: 2px solid var(--accent); }
.tl-item .when { font-family: var(--mono); font-size: .8rem; color: var(--accent); }
.tl-item h3 { margin: 4px 0 6px; font-size: 1.05rem; }
.tl-item p { margin: 0; color: var(--muted); }

/* Article */
.article { max-width: 760px; margin: 0 auto; padding: 60px 20px; }
.article h1 { font-size: clamp(1.9rem, 4vw, 2.7rem); line-height: 1.15; letter-spacing: -.02em; margin: 14px 0; }
.article h2 { margin-top: 2.2em; font-size: 1.4rem; }
.article p, .article li { color: #cbd5e1; font-size: 1.05rem; }
.article code { font-family: var(--mono); background: var(--bg-2); border: 1px solid var(--border); padding: 1px 6px; border-radius: 5px; font-size: .9em; }
.callout { background: var(--card); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 10px; padding: 16px 20px; margin: 24px 0; color: var(--muted); }

.tile-link { display: block; color: inherit; transition: transform .2s ease, border-color .2s ease; }
.tile-link:hover { text-decoration: none; transform: translateY(-3px); border-color: #3b4f75; }
.tile-link .go { display: inline-block; margin-top: 12px; color: var(--accent); font-weight: 600; font-size: .9rem; }
.card .links { display: flex; gap: 16px; align-items: center; margin-top: auto; font-size: .9rem; }
.card .links .more { margin-top: 0; }
.card .soon { color: var(--muted); font-weight: 600; }
a.ext::after { content: " \2197"; font-size: .85em; }
.tl-item a { font-size: .9rem; }

/* Article extras */
.article ol li, .article ul li { margin-bottom: 8px; }
.article pre.example { font-family: var(--mono); font-size: .88rem; background: #070a10; border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; white-space: pre-wrap; color: #cbd5e1; }
.article .label { font-family: var(--mono); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: -6px; }
.article .label.bad { color: #f87171; }
.article .label.good { color: var(--accent-3); }
.sources { margin-top: 40px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 24px; }
.sources h2 { margin: 0 0 10px; font-size: 1.1rem; }
.sources ul { margin: 0; padding-left: 18px; }
.sources li { font-size: .95rem; }
.guide-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: 40px; flex-wrap: wrap; }

/* Resources strip */
.resources { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.resource { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; color: var(--text); }
.resource:hover { text-decoration: none; border-color: var(--accent); }
.resource strong { display: block; margin-bottom: 4px; }
.resource span { color: var(--muted); font-size: .88rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 40px 0; margin-top: 40px; color: var(--muted); font-size: .88rem; }
.footer-grid { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: flex; gap: 20px; flex-wrap: wrap; }
.footer-grid a { color: var(--muted); }
.disclaimer { margin-top: 24px; font-size: .8rem; color: #64748b; }

/* Responsive */
@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: var(--bg); border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; padding: 14px 20px; }
  .grid, .prompts { grid-template-columns: 1fr; }
  .hero { padding: 60px 0 40px; }
}