/* ========== BASE ========== */
html { background: var(--bg-primary); overflow-x: hidden; }
body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  font-feature-settings: "ss01", "cv11";
  overflow-x: hidden;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.025 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-size: 200px 200px;
}
img, svg { max-width: 100%; }

/* ========== TYPO ========== */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 400; letter-spacing: -0.02em; line-height: 1.05; }
h1 { font-size: clamp(var(--fs-h1-min), 7vw, var(--fs-h1-max)); }
h2 { font-size: clamp(var(--fs-h2-min), 5vw, var(--fs-h2-max)); line-height: 1.1; }
h3 { font-family: var(--font-body); font-weight: 600; font-size: var(--fs-h3); line-height: 1.3; letter-spacing: -0.01em; }
h4 { font-family: var(--font-body); font-weight: 600; font-size: 18px; line-height: 1.4; }

p { color: var(--text-primary); max-width: 68ch; }
p.lead { color: var(--text-secondary); font-size: 19px; line-height: 1.55; max-width: 60ch; }
p + p { margin-top: 1em; }

.caption {
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  font-weight: 400;
}
.section-num {
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  display: block;
  margin-bottom: 24px;
}

a { color: inherit; }
a.link { color: var(--text-primary); border-bottom: 1px solid var(--border-strong); transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease); }
a.link:hover { color: var(--accent); border-bottom-color: var(--accent); }

.mono { font-family: var(--font-mono); }
.serif { font-family: var(--font-display); }
.muted { color: var(--text-secondary); }
.dim { color: var(--text-tertiary); }
.accent { color: var(--accent); }

/* ========== LAYOUT ========== */
.container { max-width: var(--container-max); margin: 0 auto; padding-left: var(--container-pad); padding-right: var(--container-pad); }
.section { padding-block: var(--space-section); }
.section-sm { padding-block: var(--space-block); }
.divider { border-top: 1px solid var(--border); }
.eyebrow { display: flex; align-items: center; gap: 12px; margin-bottom: 32px; }
.eyebrow::before { content: ""; width: 24px; height: 1px; background: var(--accent); }

/* ========== GRID HELPERS ========== */
.grid { display: grid; gap: 32px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-7-5 { grid-template-columns: 7fr 5fr; }
.grid-4-8 { grid-template-columns: 4fr 8fr; }
.grid-8-4 { grid-template-columns: 8fr 4fr; }

@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4, .grid-7-5, .grid-4-8, .grid-8-4 { grid-template-columns: 1fr; }
}

/* ========== ANIMATIONS ========== */
.reveal { opacity: 0; transform: translateY(8px); transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
}