:root {
  --teal: #0F766E;
  --teal-dark: #0B5C55;
  --amber: #F59E0B;
  --bg: #FAFAF9;
  --text: #171717;
  --text-muted: #57534E;
  --border: #E7E5E4;
  --card-bg: #FFFFFF;
  --font-head: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.3rem; }

p { margin: 0 0 1em; }

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand-mark { font-size: 1.3rem; }

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 24px;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
}

.main-nav a[aria-current="page"] {
  color: var(--teal);
}

.nav-toggle {
  display: none;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  background: transparent;
  font: inherit;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}

/* Hero */
.hero {
  padding: 80px 0 60px;
  text-align: left;
}

.hero-lede {
  max-width: 640px;
  font-size: 1.15rem;
  color: var(--text-muted);
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
}

.btn-primary {
  background: var(--teal);
  color: #fff;
}
.btn-primary:hover { background: var(--teal-dark); text-decoration: none; }

.btn-secondary {
  background: transparent;
  color: var(--teal);
  border: 1.5px solid var(--teal);
}
.btn-secondary:hover { background: rgba(15,118,110,0.08); text-decoration: none; }

/* Sections */
.section { padding: 48px 0; }

.three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.three-col .col h3 { color: var(--teal); }

.stats-strip {
  background: var(--teal);
  color: #fff;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-num {
  display: block;
  font-family: var(--font-head);
  font-size: 2.2rem;
  font-weight: 700;
}
.stat-label {
  display: block;
  font-size: 0.9rem;
  opacity: 0.85;
}

.cta-final {
  text-align: center;
  background: var(--amber);
  border-radius: 16px;
  max-width: 1080px;
  padding: 56px 32px;
}
.cta-final h2 { color: var(--text); }
.cta-final .btn-primary { background: var(--text); }
.cta-final .btn-primary:hover { background: #000; }

/* Generic page */
.page { padding: 56px 0 80px; }
.page-header { margin-bottom: 32px; border-bottom: 1px solid var(--border); padding-bottom: 24px; }
.page-subtitle { color: var(--text-muted); font-size: 1.1rem; }
.page-body h2 { color: var(--teal); margin-top: 1.6em; }
.page-body h3 { margin-top: 1.2em; }
.page-body ul, .page-body ol { padding-left: 1.4em; }
.page-body blockquote {
  border-left: 3px solid var(--amber);
  margin: 1.5em 0;
  padding: 0.2em 1.2em;
  color: var(--text-muted);
  font-style: italic;
}

/* Card grid (Projects list) */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 32px;
}
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  color: var(--text);
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover {
  text-decoration: none;
  border-color: var(--teal);
  transform: translateY(-2px);
}
.card h3 { color: var(--teal); margin-bottom: 8px; }
.card p { color: var(--text-muted); font-size: 0.95rem; }
.card-link { font-weight: 600; font-size: 0.9rem; color: var(--amber); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  margin-top: 40px;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.footer-col { display: flex; align-items: center; gap: 8px; }
.footer-links { gap: 20px; }
.footer-note { width: 100%; text-align: center; order: 3; }

@media (min-width: 640px) {
  .footer-note { width: auto; text-align: left; order: 0; }
}

@media (max-width: 800px) {
  .three-col { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .main-nav { position: relative; }
  .nav-toggle { display: block; }
  .main-nav ul { display: none; }
  .main-nav ul.is-open {
    display: flex;
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    width: min(280px, calc(100vw - 48px));
    padding: 16px;
    flex-direction: column;
    gap: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--card-bg);
    box-shadow: 0 12px 30px rgba(23, 23, 23, 0.12);
  }
}