/* ============================================================
   AI FACTORY PORTFOLIO — PLATFORM DESIGN SYSTEM (landing)
   Shares the visual language of the site platforms; evolves
   independently. sites/alyth/ is frozen and self-contained.
   ============================================================ */

:root {
  --bg: #07090d; --bg-raise: #0c1016; --panel: #11161d; --panel-2: #161c25;
  --border: #1e2733; --border-hi: #2c3947;
  --text: #e8eef4; --muted: #93a1b0; --faint: #5c6a78;
  --green: #76b900; --cyan: #38bdf8; --teal: #2dd4bf; --amber: #fbbf24;
  --orange: #f97316; --violet: #a78bfa; --red: #f8636f; --blue: #60a5fa;
  --font: "Inter", -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
  --rad: 12px; --maxw: 1480px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: var(--font); font-size: 15px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
::selection { background: rgba(118,185,0,.35); }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
.mono { font-family: var(--mono); }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 28px 24px 90px; }

/* nav */
.nav { position: sticky; top: 0; z-index: 300; background: rgba(7,9,13,.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.nav-inner { max-width: var(--maxw); margin: 0 auto; display: flex; align-items: center; gap: 22px; padding: 0 24px; height: 58px; }
.nav-brand { display: flex; align-items: baseline; gap: 10px; font-weight: 800; letter-spacing: .06em; font-size: 15px; color: var(--text); white-space: nowrap; }
.nav-brand:hover { text-decoration: none; }
.nav-brand .dot { color: var(--green); }
.nav-brand small { font-weight: 600; font-size: 10px; letter-spacing: .18em; color: var(--faint); text-transform: uppercase; }
.nav-right { margin-left: auto; display: flex; gap: 16px; align-items: center; font-size: 13px; color: var(--muted); }
.nav-right .badge { border-color: rgba(118,185,0,.4); color: var(--green); }

/* hero */
.hero {
  margin-top: 30px; padding: 48px 44px;
  background:
    radial-gradient(1300px 520px at 88% -10%, rgba(118,185,0,.12), transparent 60%),
    radial-gradient(900px 460px at 2% 112%, rgba(56,189,248,.10), transparent 60%),
    linear-gradient(180deg, #0d1219 0%, #090c11 100%);
  border: 1px solid var(--border); border-radius: 18px;
}
.hero .tag { font-family: var(--mono); font-size: 11px; letter-spacing: .26em; color: var(--green); text-transform: uppercase; }
.hero h1 { font-size: 48px; font-weight: 850; letter-spacing: -.03em; line-height: 1.04; margin: 16px 0 6px; }
.hero h1 em { font-style: normal; color: var(--green); }
.hero .sub { color: var(--muted); font-size: 16.5px; max-width: 900px; margin-top: 12px; }

/* kpis */
.kpis { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; margin-top: 26px; }
@media (max-width: 1100px) { .kpis { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px)  { .kpis { grid-template-columns: repeat(2, 1fr); } }
.kpi { background: linear-gradient(180deg, var(--panel), var(--bg-raise)); border: 1px solid var(--border); border-radius: var(--rad); padding: 15px 17px 13px; position: relative; overflow: hidden; }
.kpi::after { content: ""; position: absolute; inset: 0 0 auto 0; height: 2px; background: var(--k, var(--green)); opacity: .85; }
.kpi .l { font-size: 10.5px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; color: var(--muted); }
.kpi .v { font-family: var(--mono); font-size: 27px; font-weight: 700; letter-spacing: -.02em; margin-top: 5px; }
.kpi .v small { font-size: 13px; color: var(--muted); margin-left: 4px; }
.kpi .n { font-size: 11.5px; color: var(--faint); margin-top: 3px; }

/* sections */
.section { margin-top: 52px; }
.section > h2 { font-size: 22px; font-weight: 750; display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.section > h2 .tick { width: 22px; height: 3px; background: var(--green); border-radius: 2px; }
.section > .lede { color: var(--muted); max-width: 940px; margin-bottom: 20px; }

/* map + featured layout */
.map-grid { display: grid; grid-template-columns: 460px 1fr; gap: 22px; align-items: stretch; }
@media (max-width: 1000px) { .map-grid { grid-template-columns: 1fr; } }
.map-card { background: #05070a; border: 1px solid var(--border); border-radius: var(--rad); padding: 18px; position: relative; }
.map-card svg { width: 100%; height: auto; display: block; }
.gb-land { fill: #0d1a10; stroke: #1e3a24; stroke-width: 1.6; }
.pin { cursor: pointer; }
.pin circle { fill: var(--green); stroke: #0a0f04; stroke-width: 2; }
.pin .halo { fill: none; stroke: var(--green); stroke-width: 1.4; opacity: .6; animation: halo 2.4s ease-out infinite; }
@keyframes halo { 0% { r: 7; opacity: .7; } 100% { r: 20; opacity: 0; } }
.pin text { font: 700 13px var(--font); fill: var(--text); }
.map-note { font-size: 11.5px; color: var(--faint); margin-top: 10px; }

/* cards */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
@media (max-width: 1150px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px)  { .cards { grid-template-columns: 1fr; } }
.site-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 20px; display: flex; flex-direction: column; gap: 10px; color: var(--text);
  transition: border-color .15s, transform .15s; position: relative; overflow: hidden;
}
a.site-card:hover { text-decoration: none; border-color: var(--green); transform: translateY(-3px); }
.site-card.stub { opacity: .72; }
.site-card .top { display: flex; align-items: center; gap: 10px; }
.site-card h3 { font-size: 19px; font-weight: 800; letter-spacing: -.01em; }
.site-card .loc { font-size: 12px; color: var(--faint); margin-top: -6px; }
.site-card p { font-size: 13px; color: var(--muted); flex: 1; }
.site-card .stats { display: flex; gap: 14px; border-top: 1px solid var(--border); padding-top: 12px; }
.site-card .stats div { flex: 1; }
.site-card .stats .sv { font-family: var(--mono); font-size: 17px; font-weight: 700; }
.site-card .stats .sl { font-size: 9.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--faint); font-weight: 700; }
.site-card .cta { font-size: 12.5px; font-weight: 750; color: var(--green); }
.site-card.featured { grid-column: span 2; border-color: rgba(118,185,0,.45); background: linear-gradient(180deg, rgba(118,185,0,.05), var(--panel) 55%); }
@media (max-width: 620px) { .site-card.featured { grid-column: span 1; } }

.badge { display: inline-block; font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--border-hi); color: var(--muted); }
.badge.green { color: var(--green); border-color: rgba(118,185,0,.4); background: rgba(118,185,0,.08); }
.badge.amber { color: var(--amber); border-color: rgba(251,191,36,.4); background: rgba(251,191,36,.08); }
.badge.dim { color: var(--faint); }

/* compare table */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--rad); }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 860px; }
.tbl thead th { text-align: left; font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); background: var(--bg-raise); padding: 10px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.tbl tbody td { padding: 10px 14px; border-bottom: 1px solid var(--border); }
.tbl tbody tr:last-child td { border-bottom: 0; }
.tbl tbody tr:hover { background: rgba(255,255,255,.02); }
.tbl .num { font-family: var(--mono); font-size: 12.5px; white-space: nowrap; }
.tbl .dim { color: var(--faint); }

.note { border-left: 3px solid var(--amber); background: rgba(251,191,36,.06); border-radius: 0 8px 8px 0; padding: 13px 16px; font-size: 13.5px; color: var(--muted); }
.note b { color: var(--text); }

.foot { border-top: 1px solid var(--border); margin-top: 70px; padding: 26px 24px 40px; color: var(--faint); font-size: 12px; }
.foot .wrapf { max-width: var(--maxw); margin: 0 auto; display: flex; gap: 20px; flex-wrap: wrap; justify-content: space-between; }