/* ============================================================
   base.css — design tokens, reset, primitives, shared chrome
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,400;1,9..144,600&family=Hanken+Grotesk:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Colors — warm paper, deep ink, single accent */
  --paper:        oklch(98% 0.008 75);
  --paper-deep:   oklch(95.5% 0.012 75);
  --ink:          oklch(20% 0.015 50);
  --ink-strong:   oklch(15% 0.02 50);
  --ink-muted:    oklch(46% 0.012 55);
  --ink-faint:    oklch(62% 0.01 55);
  --rule:         oklch(88% 0.012 60);
  --rule-soft:    oklch(93% 0.01 60);
  --accent:       oklch(48% 0.16 30);
  --accent-deep:  oklch(38% 0.16 28);
  --status-dot:   oklch(58% 0.18 145);

  /* Typography */
  --font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --font-body:    'Hanken Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Layout */
  --container:    72rem;
  --measure:      38rem;
  --gutter:       clamp(1.25rem, 4vw, 3rem);
  --section-pad:  clamp(4rem, 9vw, 8rem);
}

* { box-sizing: border-box; }

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  font-weight: 400;
  font-feature-settings: 'ss01', 'cv01';
}

/* Subtle paper texture — almost imperceptible noise via SVG */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.025;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' seed='3'/></filter><rect width='200' height='200' filter='url(%23n)'/></svg>");
}

/* ── Container ─────────────────────────────────────────── */

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ── Typography ─────────────────────────────────────────── */

.display {
  font-family: var(--font-display);
  font-weight: 500;
  font-style: normal;
  font-size: clamp(2.75rem, 7.5vw, 6rem);
  line-height: 0.98;
  letter-spacing: -0.025em;
  color: var(--ink-strong);
  font-variation-settings: 'opsz' 144;
}

.display em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

h2.section-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 2rem 0;
  color: var(--ink-strong);
  font-variation-settings: 'opsz' 96;
  max-width: 28ch;
}

h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.375rem;
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin: 0 0 0.5rem 0;
  color: var(--ink-strong);
  font-variation-settings: 'opsz' 24;
}

p { margin: 0 0 1rem 0; max-width: var(--measure); }
p:last-child { margin-bottom: 0; }

a {
  color: var(--ink-strong);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: var(--rule);
  transition: text-decoration-color 0.2s, color 0.2s;
}
a:hover {
  text-decoration-color: var(--accent);
  color: var(--accent);
}

/* ── Mono label primitives — eyebrows, numeric prefixes ── */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 0 0 1.5rem 0;
  display: inline-flex;
  align-items: baseline;
  gap: 0.875rem;
}
.eyebrow .num { color: var(--accent); }
.eyebrow .bar {
  display: inline-block;
  width: 2rem;
  height: 1px;
  background: var(--rule);
  transform: translateY(-3px);
}

/* ── Generic section ────────────────────────────────────── */

section.block {
  padding-block: var(--section-pad);
  border-top: 1px solid var(--rule);
}

/* ── Buttons ────────────────────────────────────────────── */

.btn {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 0.875rem 1.5rem;
  border-radius: 1px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
  border: 1px solid transparent;
}
.btn--primary {
  background: var(--ink-strong);
  color: var(--paper);
  border-color: var(--ink-strong);
}
.btn--primary:hover {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  color: var(--paper);
}
.btn--ghost {
  background: transparent;
  color: var(--ink-strong);
  border-color: var(--rule);
}
.btn--ghost:hover {
  border-color: var(--ink-strong);
  color: var(--ink-strong);
  background: var(--paper-deep);
}

/* ── Back link (reused on company + post pages) ─────────── */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  text-decoration: none;
  margin-top: 3rem;
}
.back-link:hover { color: var(--accent); }

/* ── Entrance animations — keep restrained ───────────── */

.fade-up {
  animation: fadeUp 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) backwards;
}
.fade-up.d1 { animation-delay: 0.05s; }
.fade-up.d2 { animation-delay: 0.15s; }
.fade-up.d3 { animation-delay: 0.25s; }
.fade-up.d4 { animation-delay: 0.35s; }
.fade-up.d5 { animation-delay: 0.45s; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}