/* Seren Signage — landing + legal pages. Self-contained, system fonts, one accent. */
:root {
  --paper: #f7f6f3;
  --surface: #ffffff;
  --ink: #1e2a38;
  --muted: #5c6672;
  --faint: #8a929c;
  --line: #e7e6e1;
  --accent: #e0654e;
  --accent-600: #d1543c;
  --slate: #1f2a37;
  --slate-700: #2b3a4d;
  --radius: 16px;
  --wrap: 1040px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

/* ---- Brand mark + nav ---- */
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.brand svg { display: block; border-radius: 9px; }
.brand .word { font-size: 18px; font-weight: 800; letter-spacing: -0.01em; }
.brand .word b { color: var(--accent); font-weight: 800; }

header.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(247, 246, 243, 0.85);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
header.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
header.nav nav { display: flex; align-items: center; gap: 18px; }
header.nav nav a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 600; }
header.nav nav a:hover { color: var(--ink); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 12px;
  font-weight: 700; font-size: 15px; text-decoration: none;
  border: 1px solid transparent; cursor: pointer; transition: all 0.15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-600); }
.btn-ghost { border-color: var(--line); background: var(--surface); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---- Hero ---- */
.hero { padding: 72px 0 40px; }
.hero .grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.eyebrow {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 16px;
}
.hero h1 {
  font-size: clamp(34px, 5vw, 52px); line-height: 1.06; letter-spacing: -0.02em;
  margin: 0 0 18px; text-wrap: balance;
}
.hero p.lead { font-size: 19px; color: var(--muted); margin: 0 0 28px; max-width: 34ch; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero .note { margin-top: 16px; font-size: 13px; color: var(--faint); }

/* Device visual */
.device {
  aspect-ratio: 16 / 10; width: 100%;
  border-radius: 18px; background: var(--slate);
  box-shadow: 0 30px 60px -30px rgba(31, 42, 55, 0.5);
  padding: 14px; position: relative; overflow: hidden;
}
.device .screen {
  position: absolute; inset: 14px; border-radius: 10px; overflow: hidden;
  background: linear-gradient(135deg, #33475d, #223140);
  display: grid; grid-template-columns: 1.6fr 1fr; grid-template-rows: 1fr auto; gap: 8px; padding: 10px;
}
.device .tile { border-radius: 7px; background: rgba(255, 255, 255, 0.08); }
.device .tile.main { grid-row: 1 / 3; background: linear-gradient(135deg, var(--accent), #c9492f); }
.device .tile.ticker { grid-column: 1 / 3; height: 26px; background: rgba(255, 255, 255, 0.14); }
.device .dot { position: absolute; right: 26px; top: 26px; width: 12px; height: 12px; border-radius: 50%; background: #fff; opacity: 0.9; }

/* ---- Sections ---- */
section.band { padding: 56px 0; border-top: 1px solid var(--line); }
h2.section { font-size: clamp(24px, 3vw, 32px); letter-spacing: -0.01em; margin: 0 0 8px; text-wrap: balance; }
p.sub { color: var(--muted); margin: 0 0 32px; font-size: 17px; max-width: 56ch; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.feature .ic {
  width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center;
  background: #fbe8e2; color: var(--accent); margin-bottom: 14px;
}
.feature h3 { margin: 0 0 6px; font-size: 17px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }

.audience { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  border: 1px solid var(--line); background: var(--surface); color: var(--muted);
  padding: 7px 14px; border-radius: 999px; font-size: 14px; font-weight: 600;
}

/* CTA band */
.cta-band { background: var(--slate); color: #fff; border-radius: 22px; padding: 44px; text-align: center; }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255, 255, 255, 0.7); margin: 6px 0 24px; }

/* ---- Footer ---- */
footer.site { border-top: 1px solid var(--line); padding: 32px 0; margin-top: 48px; }
footer.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer.site nav { display: flex; gap: 20px; }
footer.site a { color: var(--muted); text-decoration: none; font-size: 14px; }
footer.site a:hover { color: var(--ink); }
footer.site .copy { color: var(--faint); font-size: 13px; }

/* ---- Legal (terms/privacy) ---- */
.legal { padding: 48px 0 24px; }
.legal .doc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(24px, 5vw, 48px); }
.legal h1 { font-size: 32px; margin: 0 0 4px; letter-spacing: -0.01em; }
.legal .updated { color: var(--faint); font-size: 14px; margin: 0 0 24px; }
.legal .notice {
  background: #fff7e6; border: 1px solid #f2e2b8; color: #7a5b12;
  padding: 12px 16px; border-radius: 12px; font-size: 14px; margin: 0 0 28px;
}
.legal h2 { font-size: 19px; margin: 28px 0 8px; }
.legal p, .legal li { color: #2b3644; font-size: 15px; }
.legal a { color: var(--accent-600); }
.legal ul { padding-left: 20px; }

@media (max-width: 760px) {
  .hero { padding: 48px 0 24px; }
  .hero .grid { grid-template-columns: 1fr; gap: 32px; }
  .hero .device { order: -1; }
  .features { grid-template-columns: 1fr; }
  .cta-band { padding: 32px 20px; }
}