/* Sunblocker — design system */

:root {
  /* warm-glass palette (default) */
  --bg: #faf7f1;
  --bg-2: #f3ede0;
  --ink: #13141a;
  --ink-soft: #4a4d57;
  --ink-mute: #8a8a8f;
  --hairline: #e6dec9;
  --hairline-strong: #d6cdb6;
  --card: #ffffff;
  --glass: #2c3138;
  --sun: #f4a93a;
  --sun-deep: #d4861a;
  --tint: #3d5d7a;
  --shade: rgba(20, 20, 28, 0.06);
  --shade-2: rgba(20, 20, 28, 0.12);

  /* type */
  --display: 'Bricolage Grotesque', 'Times New Roman', serif;
  --sans: 'IBM Plex Sans', -apple-system, system-ui, sans-serif;
  --mono: 'IBM Plex Mono', 'SF Mono', Consolas, monospace;

  /* radii / elevation */
  --r-sm: 8px;
  --r: 14px;
  --r-lg: 22px;
  --r-xl: 32px;
  --shadow-sm: 0 1px 2px rgba(20,20,28,0.04), 0 2px 6px rgba(20,20,28,0.04);
  --shadow: 0 2px 4px rgba(20,20,28,0.05), 0 14px 36px rgba(20,20,28,0.08);
  --shadow-lg: 0 30px 80px rgba(20,20,28,0.18);
}

[data-palette="cool"] {
  --bg: #f4f6f9;
  --bg-2: #e7ecf2;
  --ink: #0e1320;
  --ink-soft: #3b4358;
  --hairline: #dde3ec;
  --hairline-strong: #c8d2df;
  --glass: #1a2230;
  --sun: #5a8fc7;
  --sun-deep: #2a5fa0;
  --tint: #2a3a55;
  --shade: rgba(14, 19, 32, 0.06);
}

[data-palette="terracotta"] {
  --bg: #f7f0e6;
  --bg-2: #efe2cd;
  --ink: #1c1610;
  --ink-soft: #4d3f30;
  --hairline: #e7d8bf;
  --hairline-strong: #d4c0a0;
  --glass: #3a2a1e;
  --sun: #d76b3b;
  --sun-deep: #a04a22;
  --tint: #6e3d29;
}

[data-theme="dark"] {
  --bg: #0e1014;
  --bg-2: #15181f;
  --ink: #f5f1e6;
  --ink-soft: #b3afa4;
  --ink-mute: #6c6a64;
  --hairline: #232730;
  --hairline-strong: #2e333d;
  --card: #181b22;
  --glass: #0a0c10;
  --sun: #f4a93a;
  --sun-deep: #f0c46a;
  --tint: #6f8aa6;
  --shade: rgba(255, 248, 232, 0.04);
  --shade-2: rgba(255, 248, 232, 0.10);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow: 0 2px 4px rgba(0,0,0,0.3), 0 18px 50px rgba(0,0,0,0.5);
  --shadow-lg: 0 40px 100px rgba(0,0,0,0.7);
}

/* base */
* { box-sizing: border-box; }
html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body { overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
img { max-width: 100%; display: block; }
::selection { background: var(--sun); color: var(--ink); }

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.02;
  margin: 0;
  text-wrap: balance;
}

.mono { font-family: var(--mono); font-feature-settings: "ss01"; }
.tabular { font-variant-numeric: tabular-nums; }

/* layout */
.wrap {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 16px;
}
@media (min-width: 480px) { .wrap { padding: 0 22px; } }
@media (min-width: 880px) { .wrap { padding: 0 40px; } }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  width: 18px; height: 1px;
  background: currentColor;
  opacity: 0.6;
}

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 14px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 500;
  font-size: 15px;
  letter-spacing: -0.005em;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--ink);
  color: var(--bg);
}
.btn-primary:hover { background: #000; }
[data-theme="dark"] .btn-primary { background: var(--sun); color: #15110a; }
[data-theme="dark"] .btn-primary:hover { background: var(--sun-deep); }
.btn-ghost {
  background: transparent;
  border-color: var(--hairline-strong);
}
.btn-ghost:hover { border-color: var(--ink); }
.btn-sun {
  background: var(--sun);
  color: #15110a;
}
.btn-sun:hover { background: var(--sun-deep); }

/* cards */
.card {
  background: var(--card);
  border-radius: var(--r-lg);
  border: 1px solid var(--hairline);
  box-shadow: var(--shadow-sm);
}

/* divider */
.hr {
  height: 1px;
  background: var(--hairline);
  border: 0;
}

/* section spacing */
.section {
  padding: 96px 0;
  position: relative;
}
@media (max-width: 880px) {
  .section { padding: 64px 0; }
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
@media (min-width: 880px) {
  .section-head { margin-bottom: 56px; }
}
.section-head h2 {
  font-size: clamp(36px, 5vw, 64px);
  max-width: 18ch;
}
.section-head p {
  max-width: 42ch;
  color: var(--ink-soft);
  font-size: 17px;
  margin: 0;
}

/* utilities */
.row { display: flex; gap: 16px; align-items: center; }
.stack { display: flex; flex-direction: column; }

/* grain noise overlay (subtle) */
.grain {
  position: fixed; inset: 0; pointer-events: none; opacity: 0.04;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  z-index: 9999;
  mix-blend-mode: multiply;
}
[data-theme="dark"] .grain { mix-blend-mode: screen; opacity: 0.06; }

/* sun rays — decorative */
.rays {
  position: absolute; inset: 0; pointer-events: none; overflow: hidden;
}
.rays::before {
  content: "";
  position: absolute;
  top: -10%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle at center, color-mix(in srgb, var(--sun) 35%, transparent), transparent 60%);
  filter: blur(40px);
}