/* ============================================
   LAMSSI — Design System
   Dark ink + gold accent, instrument-grade
   Matches Lamssi/Efaino brand from pitch deck
   ============================================ */
:root {
  --ink-0: #050506;     /* deepest */
  --ink-1: #0E0F11;     /* page bg */
  --ink-2: #131418;     /* card */
  --ink-3: #1A1C21;     /* card hover */
  --line-1: #1F2228;
  --line-2: #2A2E36;
  --text-0: #FAFAFA;
  --text-1: #E6E7EA;
  --text-2: #BFC2C9;
  --text-3: #ACAFB8;
  --text-4: #8A8E97;
  --gold: #F0C020;
  --gold-soft: rgba(240,192,32,0.12);
  --gold-line: rgba(240,192,32,0.30);
  --green: #4ADE80;
  --red: #F87171;

  --f-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --f-serif: 'Instrument Serif', Georgia, serif;
  --f-mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;

  --max: 1440px;
  --gutter: clamp(20px, 4vw, 64px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--ink-1); color: var(--text-1); }
body {
  font-family: var(--f-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font: inherit; color: inherit; }

::selection { background: var(--gold); color: var(--ink-0); }
*:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
*:focus:not(:focus-visible) { outline: none; }

/* Typography */
h1, h2, h3, h4 {
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--text-0);
}
.display {
  font-size: clamp(34px, 5vw, 72px);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 0.96;
  color: #fff;
}
.h-lg { font-size: clamp(36px, 4.5vw, 64px); font-weight: 400; letter-spacing: -0.025em; line-height: 1.05; color: #fff; }
.h-md { font-size: clamp(28px, 3vw, 44px); font-weight: 400; letter-spacing: -0.02em; line-height: 1.1; color: #fff; }
.display em, .h-lg em, .h-md em {
  font-family: var(--f-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--gold);
}
.h-sm { font-size: 22px; font-weight: 500; letter-spacing: -0.01em; }
.body  { font-size: 16px; line-height: 1.6; color: var(--text-2); }
.body-lg { font-size: 19px; line-height: 1.55; color: var(--text-1); }
.micro {
  font-family: var(--f-mono);
  font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3); font-weight: 500;
}
.eyebrow {
  font-family: var(--f-mono);
  font-size: 12px; letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold); font-weight: 500;
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ''; width: 24px; height: 1px; background: var(--gold); }
.gold { color: var(--gold); }
.mono { font-family: var(--f-mono); }

/* Layout */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(48px, 6vw, 88px) 0; position: relative; }
.section + .section { border-top: 1px solid var(--line-1); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(14,15,17,0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-1);
}
.site-header .row {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; max-width: var(--max); margin: 0 auto;
  padding: 0 var(--gutter);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 22px; opacity: 0.95; }
.brand .build {
  font-family: var(--f-mono); font-size: 11px;
  letter-spacing: 0.08em; color: var(--text-4);
  padding-left: 10px; margin-left: 4px;
  border-left: 1px solid var(--line-2);
}
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 8px 14px;
  font-size: 14px;
  color: var(--text-2);
  position: relative;
  transition: color 0.15s;
}
.nav a:hover { color: var(--gold); }
.nav a.active { color: var(--text-0); }
.nav a.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: -2px;
  height: 1px; background: var(--gold);
}
.nav a.nav-cta {
  padding: 9px 16px;
  background: var(--gold); color: var(--ink-0);
  font-size: 13px; font-weight: 600;
  display: inline-flex; align-items: center; gap: 8px;
  border-radius: 2px;
}
.nav a.nav-cta:hover { background: #f5cd3d; color: #fff; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  font-size: 14px; font-weight: 500;
  border-radius: 2px;
  transition: all 0.15s;
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn-primary { background: var(--gold); color: var(--ink-0); font-weight: 600; }
.btn-primary:hover { background: #f5cd3d; }
.btn-ghost { color: var(--text-1); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--gold); background: var(--ink-2); color: var(--gold); }
.btn .arrow { transition: transform 0.15s; }
.btn:hover .arrow { transform: translateX(3px); }

/* Tag */
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 9px;
  font-family: var(--f-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  background: var(--ink-2); border: 1px solid var(--line-1);
  color: var(--text-3);
}
.tag.gold { background: var(--gold-soft); border-color: var(--gold-line); color: var(--gold); }
.tag.live::before {
  content: ""; width: 5px; height: 5px;
  background: var(--green); border-radius: 50%;
  box-shadow: 0 0 6px var(--green);
}

/* Card */
.card {
  background: var(--ink-2);
  border: 1px solid var(--line-1);
  border-radius: 4px;
  padding: 28px;
  position: relative;
  transition: all 0.15s;
}
.card:hover { background: var(--ink-3); border-color: var(--line-2); }
.card-no { font-family: var(--f-mono); font-size: 11px; color: var(--text-4); letter-spacing: 0.1em; }

/* Crosshairs */
.crosshair {
  position: absolute; width: 14px; height: 14px;
  pointer-events: none;
}
.crosshair::before, .crosshair::after { content: ''; position: absolute; background: var(--gold); }
.crosshair::before { left: 50%; top: 0; bottom: 0; width: 1px; transform: translateX(-50%); }
.crosshair::after { top: 50%; left: 0; right: 0; height: 1px; transform: translateY(-50%); }

/* Image placeholder */
.ph {
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,0.02) 0 1px, transparent 1px 8px),
    var(--ink-2);
  border: 1px solid var(--line-1);
  display: grid; place-items: center;
  font-family: var(--f-mono); font-size: 10px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-4);
  position: relative; overflow: hidden;
}
.ph::before, .ph::after {
  content: ""; position: absolute;
  width: 14px; height: 14px;
  border: 1px solid var(--gold); opacity: 0.5;
}
.ph::before { top: 8px; left: 8px; border-right: none; border-bottom: none; }
.ph::after { bottom: 8px; right: 8px; border-left: none; border-top: none; }
.ph span { background: rgba(14,15,17,0.7); padding: 4px 10px; }

/* Grid bg */
.grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 90%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 90%);
}

/* Section head */
.section-head {
  display: flex; justify-content: space-between; align-items: end;
  gap: 24px; margin-bottom: 40px; flex-wrap: wrap;
  padding-bottom: 20px; border-bottom: 1px solid var(--line-1);
}
.section-head h2 { max-width: 720px; }
.section-head .meta { font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.1em; color: var(--text-4); text-transform: uppercase; white-space: nowrap; }

/* Ticker */
.ticker {
  border-top: 1px solid var(--line-1);
  border-bottom: 1px solid var(--line-1);
  background: var(--ink-2);
  overflow: hidden; white-space: nowrap;
}
.ticker-track {
  display: inline-flex; gap: 56px; padding: 14px 0;
  animation: ticker 50s linear infinite;
  font-family: var(--f-mono); font-size: 12px;
  letter-spacing: 0.1em; color: var(--text-3);
  text-transform: uppercase;
}
.ticker-track span { display: inline-flex; align-items: center; gap: 12px; }
.ticker-track span::before { content: ""; width: 4px; height: 4px; background: var(--gold); border-radius: 50%; }
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* Footer */
.site-footer {
  background: var(--ink-0); color: var(--text-3);
  padding: 80px 0 28px;
  border-top: 1px solid var(--line-1);
}
.site-footer .grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 48px; }
.site-footer h5 { font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold); margin-bottom: 18px; font-weight: 500; }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 8px; font-size: 14px; }
.site-footer a:hover { color: var(--gold); }
.footer-btn { color: var(--text-3); }
.footer-btn:hover { color: var(--gold); }
.site-footer .legal {
  border-top: 1px solid var(--line-1); margin-top: 64px; padding-top: 24px;
  display: flex; justify-content: space-between;
  font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.08em; color: var(--text-4);
}
@media (max-width: 900px) {
  .site-footer .grid { grid-template-columns: 1fr 1fr; }
  .nav { display: none; }
}

/* Spec table */
.specs { width: 100%; border-collapse: collapse; }
.specs th, .specs td {
  padding: 14px 18px;
  text-align: left;
  font-size: 13px;
  border-bottom: 1px solid var(--line-1);
}
.specs th { font-family: var(--f-mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-4); font-weight: 500; }
.specs td.k { font-family: var(--f-mono); color: var(--text-3); width: 220px; }
.specs td.v { color: var(--text-0); font-weight: 500; }