:root {
  --bg: #15161a;
  --surface: #1c1e24;
  --surface-2: #24272e;
  --line: #2f323a;
  --text: #f3eee6;
  --muted: #a8a39a;
  --tan: #d08a4a;
  --accent: #f29a56;
  --on-accent: #15161a;
  --radius: 18px;
  --max: 1120px;
  --font: 'Inter', system-ui, sans-serif;
  --display: 'Bricolage Grotesque', 'Inter', system-ui, sans-serif;
  --pixel: 'Pixelify Sans', ui-monospace, monospace;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6efe4;
    --surface: #fffaf2;
    --surface-2: #efe4d3;
    --line: #e1d4c0;
    --text: #1a1b20;
    --muted: #5d574e;
    --tan: #a3601f;
    --accent: #a85a12;
    --on-accent: #fff;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .lab-card, .pyxel-roam { transition: none; }
  .btn:hover, .lab-card:hover { transform: none; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.65 var(--font);
  -webkit-font-smoothing: antialiased;
  padding-bottom: 150px; /* room for Pyxel's strip */
}
a { color: inherit; }
img, canvas { display: block; max-width: 100%; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 600 24px/1 var(--pixel); letter-spacing: .5px; }
.logo svg { width: 26px; height: 26px; }
.nav { display: flex; gap: 26px; font-size: 15px; }
.nav a { text-decoration: none; color: var(--muted); }
.nav a:hover { color: var(--text); }
@media (max-width: 760px) { .nav { display: none; } }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 44px; padding: 12px 20px; border-radius: 999px;
  font: 600 15px/1 var(--font); text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: transform .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-ghost { border-color: var(--line); color: var(--text); background: transparent; }
.btn-ghost:hover { background: var(--surface-2); }
.btn-sm { padding: 9px 16px; font-size: 14px; }

/* ---------- hero ---------- */
.hero { padding: 72px 0 56px; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: 1fr; gap: 40px; } }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 14px/1 var(--pixel); color: var(--tan);
  border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px; background: var(--surface);
}
.eyebrow .dot { width: 8px; height: 8px; background: var(--accent); border-radius: 2px; }

h1, h2, h3 { font-family: var(--display); line-height: 1.08; letter-spacing: -0.02em; margin: 0; }
h1 { font-size: clamp(40px, 6vw, 68px); font-weight: 700; margin: 22px 0 20px; }
h1 em { font-style: normal; color: var(--accent); }
h2 { font-size: clamp(30px, 4vw, 44px); font-weight: 700; }
h3 { font-size: 21px; font-weight: 650; }

.lede { font-size: 19px; color: var(--muted); max-width: 34em; margin: 0 0 30px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

.portrait {
  margin: 0; background: var(--surface); border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 6px); padding: 14px;
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .55);
}
.portrait canvas {
  width: 100%; aspect-ratio: 1;
  image-rendering: pixelated; cursor: pointer;
}
.portrait figcaption { display: flex; justify-content: space-between; gap: 12px; padding: 12px 6px 2px; font: 500 14px/1.3 var(--pixel); color: var(--muted); }
.portrait figcaption b { color: var(--tan); font-weight: 600; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 44px; }
.stat { border-top: 2px solid var(--line); padding-top: 12px; }
.stat strong { display: block; font: 700 24px/1.1 var(--display); }
.stat span { font-size: 14px; color: var(--muted); }
@media (max-width: 560px) { .stats { grid-template-columns: 1fr; } }

/* ---------- sections ---------- */
section { padding: 72px 0; }
.section-head { display: flex; flex-direction: column; gap: 12px; max-width: 40em; margin-bottom: 40px; }
.kicker { font: 500 15px/1 var(--pixel); color: var(--accent); text-transform: uppercase; letter-spacing: 1px; }
.section-head p { color: var(--muted); margin: 0; font-size: 18px; }

.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-2, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; display: flex; flex-direction: column; gap: 12px;
}
.card p { margin: 0; color: var(--muted); font-size: 16px; }
.card ul { margin: 4px 0 0; padding-left: 18px; color: var(--muted); font-size: 15px; }
.icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: var(--surface-2); color: var(--tan); font: 600 20px/1 var(--pixel);
}
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 6px; }
.tag { font: 500 13px/1 var(--pixel); color: var(--text); background: var(--surface-2); padding: 7px 10px; border-radius: 8px; }

.step .num { font: 600 34px/1 var(--pixel); color: var(--accent); }

.lab-card { text-decoration: none; transition: border-color .15s ease, transform .15s ease; }
.lab-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.lab-card .go { color: var(--accent); font-weight: 600; font-size: 15px; margin-top: auto; }

.faq { display: grid; gap: 12px; max-width: 820px; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px 22px; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 17px; }
.faq details p { color: var(--muted); margin: 12px 0 0; }

.contact {
  text-align: center; background: var(--surface); border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 10px); padding: 64px 24px;
}
.contact p { color: var(--muted); max-width: 34em; margin: 16px auto 28px; font-size: 18px; }
.contact .mail { display: block; margin-top: 18px; font: 500 15px/1 var(--pixel); color: var(--muted); }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 28px 0; color: var(--muted); font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.site-footer nav { display: flex; gap: 20px; }

/* ---------- Pyxel ---------- */
.pyxel-roam {
  position: fixed; left: 0; bottom: 0; width: 100vw; z-index: 30;
  pointer-events: none; color: var(--text); opacity: 0; transition: opacity .4s ease;
}
.pyxel-roam.on { opacity: 1; }
.pyxel-toggle {
  position: fixed; right: 16px; bottom: 16px; z-index: 31;
  min-height: 44px;
  font: 500 13px/1 var(--pixel); color: var(--text);
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 9px 14px; cursor: pointer;
}
.pyxel-toggle:hover { border-color: var(--tan); }

/* ---------- legal pages ---------- */
.legal { max-width: 760px; padding: 56px 20px; margin: 0 auto; }
.legal h1 { font-size: clamp(34px, 5vw, 48px); }
.legal h2 { font-size: 22px; margin: 34px 0 8px; }
.legal p, .legal li { color: var(--muted); }
.legal a { color: var(--accent); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }