/* ── GeoAI for Ecology — Custom Styles ────────────────────────── */
/* Deep forest palette with modern, clean lines                   */

:root {
  --forest-dark: #1a2f23;
  --forest-mid: #2d5a3f;
  --forest-light: #3e7a56;
  --canopy: #4a9e6b;
  --leaf-bright: #6bc48f;
  --mist: #e8efe6;
  --bark: #8b7355;
  --sky: #4a90a4;
  --text-primary: #1c2b22;
  --text-secondary: #4a5d50;
  --card-shadow: rgba(26, 47, 35, 0.08);
}

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

body {
  color: var(--text-primary);
  line-height: 1.7;
}

h1, h2, h3, h4 {
  color: var(--forest-dark);
  font-weight: 600;
}

/* ── Navbar tweaks ───────────────────────────────────────────── */

.navbar {
  border-bottom: 2px solid var(--canopy);
  backdrop-filter: blur(8px);
}

.navbar-brand {
  font-weight: 700 !important;
  letter-spacing: 0.01em;
}

/* ── Hero section ────────────────────────────────────────────── */

.hero-banner {
  background: linear-gradient(135deg, var(--forest-dark) 0%, var(--forest-mid) 50%, var(--forest-light) 100%);
  color: white;
  padding: 5rem 2rem;
  margin: -1rem -1rem 3rem -1rem;
  border-radius: 0 0 2rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-banner::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(106, 196, 143, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(74, 144, 164, 0.12) 0%, transparent 50%);
  pointer-events: none;
}

.hero-banner h1 {
  color: white;
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  position: relative;
}

.hero-banner .subtitle {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto 2rem auto;
  line-height: 1.6;
  position: relative;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 0.35rem 1rem;
  border-radius: 2rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 1.5rem;
  backdrop-filter: blur(4px);
  position: relative;
}

/* ── CTA buttons ─────────────────────────────────────────────── */

.cta-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

.cta-btn {
  display: inline-block;
  padding: 0.7rem 1.8rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  text-decoration: none;
}

.cta-primary {
  background: white;
  color: var(--forest-dark);
}

.cta-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

/* ── Section headings ────────────────────────────────────────── */

.section-heading {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-heading h2 {
  font-size: 1.9rem;
  margin-bottom: 0.5rem;
}

.section-heading p {
  color: var(--text-secondary);
  max-width: 550px;
  margin: 0 auto;
}

/* ── Project / Feature cards ─────────────────────────────────── */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.card-item {
  background: white;
  border: 1px solid #dde6dd;
  border-radius: 0.75rem;
  padding: 1.8rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px var(--card-shadow);
  border-color: var(--canopy);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 0.8rem;
  display: block;
}

.card-item h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--forest-dark);
}

.card-item p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 0;
}

.card-tag {
  display: inline-block;
  background: var(--mist);
  color: var(--forest-mid);
  padding: 0.2rem 0.65rem;
  border-radius: 1rem;
  font-size: 0.78rem;
  font-weight: 500;
  margin-top: 0.8rem;
  margin-right: 0.3rem;
}

/* ── Stats row ───────────────────────────────────────────────── */

.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1.5rem;
  margin: 2.5rem 0;
  text-align: center;
}

.stat-item {
  padding: 1.2rem;
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--forest-mid);
  line-height: 1;
  margin-bottom: 0.3rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ── Highlight box ───────────────────────────────────────────── */

.highlight-box {
  background: linear-gradient(135deg, var(--mist) 0%, #f0f5ee 100%);
  border-left: 4px solid var(--canopy);
  border-radius: 0 0.75rem 0.75rem 0;
  padding: 1.5rem 2rem;
  margin: 2rem 0;
}

.highlight-box h3 {
  color: var(--forest-mid);
  margin-bottom: 0.4rem;
}

/* ── Tab panel styling ───────────────────────────────────────── */

.nav-tabs .nav-link {
  color: var(--text-secondary);
  border: none;
  border-bottom: 2px solid transparent;
  font-weight: 500;
}

.nav-tabs .nav-link.active {
  color: var(--forest-mid);
  border-bottom-color: var(--canopy);
  background: transparent;
}

/* ── Profile card (About page) ───────────────────────────────── */

.profile-section {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
  flex-wrap: wrap;
  margin: 2rem 0;
}

.profile-photo {
  width: 200px;
  height: 200px;
  border-radius: 1rem;
  object-fit: cover;
  border: 3px solid var(--canopy);
}

.profile-info {
  flex: 1;
  min-width: 280px;
}

/* ── Responsive ──────────────────────────────────────────────── */

@media (max-width: 768px) {
  .hero-banner {
    padding: 3rem 1.5rem;
  }

  .hero-banner h1 {
    font-size: 2rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .profile-section {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* ── Page content width ──────────────────────────────────────── */

.content {
  max-width: 960px;
  margin: 0 auto;
}

/* ── Blog listing ────────────────────────────────────────────── */

.quarto-listing {
  margin-top: 1rem;
}

div.quarto-post {
  border-bottom: 1px solid #dde6dd;
  padding: 1.2rem 0;
}

div.quarto-post:hover {
  background: var(--mist);
  border-radius: 0.5rem;
  padding-left: 1rem;
  padding-right: 1rem;
}