/* Jensen Operations — v1.1 · Static card with subtle elevation
   Visual identity per consulting/BRAND.md (achromatic) with
   the hero content placed on an elevated white card. */

@font-face {
  font-family: 'IBM Plex Mono';
  src: url('/fonts/IBMPlexMono-Medium-2.3.woff2') format('woff2');
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('/fonts/InterVariable-4.1.woff2') format('woff2-variations');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;

  --bg: #FAFAF8;        /* page: barely-warm off-white */
  --card: #FFFFFF;      /* card: pure white */
  --ink: #0F0F0F;
  --ink-2: #444444;
  --ink-3: #757575;
  --rule: #E5E5E5;
  --card-border: #EBE9E4;

  --size-xs: 11px;
  --size-sm: 14px;
  --size-base: 16px;
  --size-md: 20px;
  --size-lg: 24px;
  --size-xl: 32px;
  --size-2xl: 48px;
  --size-3xl: 64px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;
  --space-9: 128px;

  --transition: 140ms ease;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html { font-size: var(--size-base); }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: var(--size-base);
  line-height: 1.5;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  transition: border-color var(--transition);
}

a:hover { border-bottom-color: var(--ink); }

a:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
  border-radius: 1px;
}

/* === Layout === */

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-hero {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(32px, 5vw, 64px) clamp(16px, 3vw, 32px);
}

/* === The card === */

.card {
  position: relative;
  width: 100%;
  max-width: 640px;
  background: var(--card);
  border: 1px solid var(--card-border);
  padding: clamp(40px, 5vw, 72px) clamp(28px, 4vw, 64px);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-shadow:
    0 1px 2px rgba(15, 15, 15, 0.03),
    0 4px 12px rgba(15, 15, 15, 0.05),
    0 16px 40px rgba(15, 15, 15, 0.04);
}

.wordmark {
  width: 100%;
  margin-bottom: var(--space-5);
}

.wordmark img {
  display: block;
  width: 100%;
  height: auto;
}

.tagline {
  font-size: var(--size-lg);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.4;
  color: var(--ink);
  max-width: 32rem;
}

/* === Footer === */

.page-footer {
  padding: var(--space-5) var(--space-4);
  font-size: var(--size-sm);
  color: var(--ink-3);
  text-align: center;
}

.page-footer a {
  color: var(--ink-3);
  border-bottom-color: transparent;
}

.page-footer a:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.page-footer .sep {
  display: inline-block;
  margin: 0 var(--space-2);
}

/* === Prose pages (privacy, terms) === */

.page-prose {
  flex: 1;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(48px, 6vw, 96px) clamp(20px, 4vw, 32px) var(--space-6);
}

.page-prose .doc-title {
  font-size: var(--size-xl);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: var(--space-2);
}

.page-prose .doc-meta {
  font-family: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: var(--size-xs);
  color: var(--ink-3);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}

.page-prose h2 {
  font-size: var(--size-md);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.page-prose p {
  margin-bottom: var(--space-3);
  color: var(--ink-2);
  line-height: 1.65;
}

.page-prose p:last-child { margin-bottom: 0; }

.page-nav {
  width: 100%;
  padding: var(--space-4);
  display: flex;
  justify-content: center;
  border-bottom: 1px solid var(--rule);
  background: var(--card);
}

.page-nav a {
  font-family: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  font-weight: 500;
  font-size: var(--size-sm);
  letter-spacing: -0.015em;
  color: var(--ink);
  border-bottom: none;
}

.page-nav a:hover { border-bottom: none; }

/* === Responsive === */

@media (max-width: 480px) {
  :root {
    --size-3xl: 40px;
    --size-2xl: 32px;
    --size-xl: 24px;
    --size-lg: 20px;
  }

  .page-hero {
    padding: 24px 16px;
  }

  .card {
    padding: 48px 24px 40px;
  }
}

/* === Print === */

@media print {
  body { color: #000; background: #fff; }
  .card { box-shadow: none; border: 1px solid #ccc; }
  a { color: #000; border-bottom: none; }
}