/* =================================================================
   corporatetrainer.com — shared design system
   ================================================================= */

/* ---------- 1. Tokens ---------- */
:root {
  --navy: #0F172A;
  --navy-soft: #1E293B;
  --off-white: #F5F4EE;
  --warm-paper: #FAFAF7;
  --burnt-orange: #B45309;
  --burnt-orange-hover: #9A4408;
  --terracotta: #92400E;
  --sage: #5A7A60;
  --sage-deep: #46624C;
  --sage-soft: #EAEFE9;
  --text-primary: #1C1917;
  --text-muted: #57534E;
  --rule: #D6D3D1;
  --rule-soft: #E7E5E4;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-ui: 'Geist Mono', 'IBM Plex Mono', monospace;

  --content-max: 1200px;
  --content-narrow: 760px;
  --content-prose: 680px;
}

/* ---------- 2. Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.65;
  color: var(--text-primary);
  background: var(--off-white);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--terracotta); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--burnt-orange); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0;
  text-wrap: balance;
}
h1 { font-size: clamp(2.25rem, 4.5vw, 3.5rem); font-weight: 500; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.875rem, 3vw, 2.625rem); margin-bottom: 1.25rem; }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); margin-bottom: 1rem; }
h4 { font-size: 1.125rem; }

p { margin: 0 0 1.25rem; max-width: var(--content-prose); text-wrap: pretty; }
p:last-child { margin-bottom: 0; }

ul { margin: 0 0 1.5rem; padding: 0; list-style: none; }
li { margin-bottom: 0.875rem; padding-left: 1.5rem; position: relative; text-wrap: pretty; max-width: var(--content-prose); }
li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.7em;
  width: 8px; height: 8px;
  background: var(--terracotta);
}

/* ---------- 3. Eyebrow label ---------- */
.eyebrow {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-bottom: 1rem;
  display: block;
}

/* ---------- 4. Header / nav ---------- */
.site-header {
  padding: 1.5rem 2rem;
  background: var(--off-white);
  border-bottom: 1px solid var(--rule-soft);
}
.nav-wrap {
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--navy);
  letter-spacing: -0.01em;
}
.nav-links {
  display: flex;
  gap: 1.75rem;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 0.9375rem;
  letter-spacing: 0;
  text-transform: none;
  font-weight: 500;
}
.nav-links a { color: var(--navy); }
.nav-links a:hover, .nav-links a.active { color: var(--terracotta); }

/* ---------- 5. Buttons / CTAs ---------- */
.btn {
  display: inline-block;
  padding: 1rem 1.75rem;
  background: var(--burnt-orange);
  color: var(--off-white);
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: background 0.2s, transform 0.2s;
}
.btn:hover {
  background: var(--burnt-orange-hover);
  color: var(--off-white);
  transform: translateY(-1px);
}

/* ---------- 6. Layout containers ---------- */
.container { max-width: var(--content-max); margin: 0 auto; padding: 0 2rem; }
.container-narrow { max-width: var(--content-narrow); margin: 0 auto; padding: 0 2rem; }
section { padding: 5rem 0; }
section.tight { padding: 3rem 0; }

/* ---------- 7. Footer ---------- */
.site-footer {
  background: var(--navy);
  color: var(--off-white);
  padding: 3rem 2rem 2rem;
  font-family: var(--font-ui);
  font-size: 0.875rem;
}
.site-footer a { color: var(--off-white); }
.footer-wrap {
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 2rem;
}
.footer-meta {
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  opacity: 0.7;
  margin-top: 2rem;
  width: 100%;
}

@media (max-width: 720px) {
  section { padding: 3.5rem 0; }
  .nav-links { display: none; }
}