/* It's 404, yo! — marketing site
   Built on the IAMJARL design tokens. Dark-first (brand default), light via prefers-color-scheme. */

:root {
  /* Color (dark = default) */
  --primary: #D0FF00;
  --on-primary: #000000;
  --bg: #000000;
  --surface: rgba(255, 255, 255, 0.03);
  --card: rgba(255, 255, 255, 0.05);
  --text: #FFFFFF;
  --text-2: rgba(255, 255, 255, 0.75);
  --text-3: rgba(255, 255, 255, 0.60);
  --border: rgba(255, 255, 255, 0.12);
  --warning: #FF6B35;
  --success: #4CAF50;

  /* Tokens */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --sp-sm: 8px;
  --sp-md: 12px;
  --sp-lg: 16px;
  --sp-xl: 20px;
  --sp-2xl: 24px;
  --sp-3xl: 32px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
  --maxw: 1080px;
}

@media (prefers-color-scheme: light) {
  :root {
    --primary: #A435D2;
    --on-primary: #FFFFFF;
    --bg: #FFFFFF;
    --surface: rgba(0, 0, 0, 0.02);
    --card: rgba(0, 0, 0, 0.04);
    --text: #000000;
    --text-2: rgba(0, 0, 0, 0.70);
    --text-3: rgba(0, 0, 0, 0.55);
    --border: rgba(0, 0, 0, 0.12);
    --warning: #C2410C;
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--sp-2xl); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: var(--sp-sm);
  padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 16px;
  text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, opacity .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }

/* Nav */
.nav { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  border-bottom: 1px solid var(--border); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.nav-links { display: flex; gap: var(--sp-2xl); font-size: 15px; color: var(--text-2); }
.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--text); }

/* Hero */
.hero { text-align: center; padding: clamp(48px, 9vw, 110px) 0 var(--sp-3xl); }
.eyebrow { display: inline-block; font-family: var(--mono); font-size: 13px;
  color: var(--primary); letter-spacing: .04em; margin-bottom: var(--sp-lg); }
.hero h1 { font-size: clamp(40px, 8vw, 76px); line-height: 1.02; letter-spacing: -0.02em; }
.hero .lede { font-size: clamp(18px, 2.6vw, 22px); color: var(--text-2);
  max-width: 640px; margin: var(--sp-2xl) auto 0; }
.cta-row { display: flex; gap: var(--sp-md); justify-content: center; flex-wrap: wrap; margin-top: var(--sp-3xl); }
.note { color: var(--text-3); font-size: 13px; margin-top: var(--sp-md); }

/* Shot */
.shot { margin-top: clamp(32px, 6vw, 64px); }
.shot img { width: 100%; height: auto; display: block; border-radius: var(--radius-lg);
  border: 1px solid var(--border); box-shadow: 0 24px 80px rgba(0,0,0,.5); }

/* Sections */
section { padding: clamp(48px, 8vw, 96px) 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto var(--sp-3xl); }
.section-head h2 { font-size: clamp(28px, 4.5vw, 40px); letter-spacing: -0.01em; }
.section-head p { color: var(--text-2); margin-top: var(--sp-md); font-size: 18px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-2xl); }
.step .num { font-family: var(--mono); color: var(--primary); font-size: 14px; }
.step h3 { margin: var(--sp-sm) 0; font-size: 20px; }
.step p { color: var(--text-2); }

/* Feature grid */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-lg); }
.card { background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: var(--sp-2xl); }
.card h3 { font-size: 18px; margin-bottom: var(--sp-sm); }
.card p { color: var(--text-2); font-size: 15px; }
.card .ic { font-size: 22px; }

/* Spec table */
.spec { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.spec table { width: 100%; border-collapse: collapse; font-size: 15px; }
.spec td { padding: 14px var(--sp-2xl); border-bottom: 1px solid var(--border); }
.spec tr:last-child td { border-bottom: none; }
.spec td:first-child { color: var(--text-2); width: 38%; }
.spec code { font-family: var(--mono); color: var(--primary); }

/* FAQ */
.faq { max-width: 760px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--border); padding: var(--sp-lg) 0; }
.faq summary { font-weight: 600; cursor: pointer; list-style: none; font-size: 17px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--text-3); }
.faq details[open] summary::after { content: "–"; }
.faq p { color: var(--text-2); margin-top: var(--sp-md); }

/* Footer */
footer { border-top: 1px solid var(--border); padding: var(--sp-3xl) 0; color: var(--text-3); font-size: 14px; }
.footer-grid { display: flex; justify-content: space-between; align-items: center; gap: var(--sp-2xl); flex-wrap: wrap; }
.footer-links { display: flex; gap: var(--sp-2xl); flex-wrap: wrap; }
.footer-links a { text-decoration: none; color: var(--text-2); }
.footer-links a:hover { color: var(--text); }
.footer-badge img { height: 28px; display: block; }
.trademark { margin-top: var(--sp-lg); font-size: 12px; color: var(--text-3); max-width: 720px; }

@media (max-width: 720px) {
  .steps, .grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}