/* AURION landing — design tokens v2 "deep ocean futurist" (ADR-031),
   self-contained, zero dependencies. Public marketing site. */
:root {
  --bg: #070a12;
  --surface: #0d1320;
  --surface-2: #141c2e;
  --border: #1d2638;
  --text: #e6ebf5;
  --dim: #8c98ad;
  --primary: #22d3ee;
  --secondary: #8b5cf6;
  --ok: #34d399;
  --grad: linear-gradient(135deg, #22d3ee 0%, #5b8cff 55%, #8b5cf6 100%);
  --maxw: 1080px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color: var(--text);
  line-height: 1.6;
  background:
    radial-gradient(1200px 560px at 80% -12%, rgba(139, 92, 246, 0.16), transparent 62%),
    radial-gradient(1000px 500px at -8% 6%, rgba(34, 211, 238, 0.12), transparent 60%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }

/* Header */
header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(7, 10, 18, 0.7);
  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: 0.6rem; font-weight: 750; letter-spacing: 0.14em; font-size: 1.05rem; }
.brand::before { content: ''; width: 13px; height: 13px; border-radius: 4px; background: var(--grad); box-shadow: 0 0 16px rgba(34, 211, 238, 0.5); }
.nav-links { display: flex; gap: 1.5rem; align-items: center; }
.nav-links a { color: var(--dim); font-size: 0.92rem; font-weight: 500; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
@media (max-width: 720px) { .nav-links a:not(.btn) { display: none; } }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--grad); color: #051018; font-weight: 650;
  padding: 0.7rem 1.3rem; border-radius: 10px; border: none; cursor: pointer;
  font-size: 0.95rem; transition: filter 130ms ease, box-shadow 130ms ease;
}
.btn:hover { filter: brightness(1.1); box-shadow: 0 0 22px rgba(34, 211, 238, 0.4); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn.ghost:hover { border-color: var(--primary); box-shadow: none; }

/* Hero */
.hero { padding: 5.5rem 0 4rem; text-align: center; }
.tag {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.8rem; color: var(--primary); font-weight: 600;
  border: 1px solid rgba(34, 211, 238, 0.35); border-radius: 999px;
  padding: 0.3rem 0.9rem; margin-bottom: 1.5rem; background: rgba(34, 211, 238, 0.06);
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.3rem); font-weight: 750; letter-spacing: -0.02em; line-height: 1.1; }
.hero h1 .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: clamp(1.05rem, 2.2vw, 1.3rem); color: var(--dim); max-width: 640px; margin: 1.3rem auto 2rem; }
.hero .cta-row { display: flex; gap: 0.9rem; justify-content: center; flex-wrap: wrap; }
.hero .trust { margin-top: 2.5rem; color: var(--dim); font-size: 0.85rem; display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; }
.hero .trust span { display: inline-flex; align-items: center; gap: 0.4rem; }
.hero .trust .dot { width: 6px; height: 6px; border-radius: 999px; background: var(--ok); box-shadow: 0 0 8px var(--ok); }

/* Sections */
section { padding: 4rem 0; }
.section-title { text-align: center; font-size: clamp(1.6rem, 3.5vw, 2.2rem); font-weight: 700; letter-spacing: -0.015em; margin-bottom: 0.8rem; }
.section-sub { text-align: center; color: var(--dim); max-width: 600px; margin: 0 auto 3rem; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.2rem; }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 1.6rem; }
.step .n { width: 34px; height: 34px; border-radius: 10px; background: var(--surface-2); display: grid; place-items: center; font-weight: 700; color: var(--primary); margin-bottom: 1rem; border: 1px solid var(--border); }
.step h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.step p { color: var(--dim); font-size: 0.95rem; }

/* Features */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.2rem; }
.feat { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 1.5rem; }
.feat .ico { font-size: 1.5rem; margin-bottom: 0.8rem; }
.feat h3 { font-size: 1.08rem; margin-bottom: 0.4rem; }
.feat p { color: var(--dim); font-size: 0.93rem; }

/* CTA band */
.cta-band { background: linear-gradient(180deg, rgba(34, 211, 238, 0.06), transparent), var(--surface); border: 1px solid var(--border); border-radius: 22px; padding: 3rem 2rem; text-align: center; }
.cta-band h2 { font-size: clamp(1.5rem, 3.5vw, 2.1rem); font-weight: 700; margin-bottom: 0.7rem; }
.cta-band p { color: var(--dim); max-width: 520px; margin: 0 auto 1.8rem; }

/* Footer */
footer { border-top: 1px solid var(--border); padding: 2.5rem 0; color: var(--dim); font-size: 0.88rem; margin-top: 3rem; }
.foot { display: flex; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; align-items: center; }
.foot-links { display: flex; gap: 1.2rem; flex-wrap: wrap; }
.foot-links a { color: var(--dim); }
.foot-links a:hover { color: var(--text); }

/* Cookie banner */
.cookie {
  position: fixed; bottom: 1rem; left: 1rem; right: 1rem; max-width: 560px; margin: 0 auto;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 14px;
  padding: 1rem 1.2rem; z-index: 100; box-shadow: 0 16px 40px rgba(2, 6, 16, 0.6);
  display: flex; gap: 1rem; align-items: center; flex-wrap: wrap;
}
.cookie p { font-size: 0.85rem; color: var(--dim); flex: 1; min-width: 200px; }
.cookie .btn { padding: 0.5rem 1rem; font-size: 0.85rem; }
.cookie.hidden { display: none; }

/* Legal pages */
.legal { padding: 3rem 0; max-width: 800px; }
.legal h1 { font-size: 1.9rem; margin-bottom: 0.5rem; }
.legal .updated { color: var(--dim); font-size: 0.85rem; margin-bottom: 2rem; }
.legal h2 { font-size: 1.25rem; margin: 2rem 0 0.7rem; }
.legal p, .legal li { color: #c4ccdb; margin-bottom: 0.8rem; }
.legal ul { padding-left: 1.4rem; }
.legal .placeholder { background: rgba(251, 191, 36, 0.12); border: 1px dashed rgba(251, 191, 36, 0.5); color: #fbbf24; padding: 0.1rem 0.4rem; border-radius: 4px; font-size: 0.9em; }