/* ============================================================
   TNBDA Custom Stylesheet — Bootstrap 5.3 override layer
   Developer tip: All brand tokens are defined as CSS variables
   at :root so you can change the palette in one place.
   ============================================================ */

/* ── Brand Tokens ─────────────────────────────────────────── */
:root {
  --tnbda-green:       #2d5016;
  --tnbda-green-mid:   #4a7c23;
  --tnbda-green-light: #7ab648;
  --tnbda-orange:      #e8a76b;
  --tnbda-orange-dark: #c97d3a;
  --tnbda-cream:       #faf7f0;
  --tnbda-text:        #1a2e0a;
  --tnbda-muted:       #5a6e4a;
  --bs-primary:        var(--tnbda-green);
  --bs-primary-rgb:    45, 80, 22;
}

/* ── Dark mode overrides ──────────────────────────────────── */
[data-bs-theme="dark"] {
  --tnbda-cream:  #1a2410;
  --tnbda-text:   #e8f0d8;
  --tnbda-muted:  #9ab880;
  --bs-body-bg:   #141f0c;
  --bs-body-color:#e8f0d8;
}

/* ── Typography ───────────────────────────────────────────── */
body {
  font-family: 'Montserrat', sans-serif;
  background-color: var(--tnbda-cream);
  color: var(--tnbda-text);
  font-size: 1rem;
  line-height: 1.7;
}

h1, h2, h3, h4, h5, h6,
.display-1, .display-2, .display-3, .display-4 {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
}

/* ── Navbar ───────────────────────────────────────────────── */
.navbar-tnbda {
  background-color: var(--tnbda-green) !important;
}
.navbar-tnbda .navbar-brand,
.navbar-tnbda .nav-link {
  color: #fff !important;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.navbar-tnbda .nav-link:hover,
.navbar-tnbda .nav-link.active {
  color: var(--tnbda-orange) !important;
}
.navbar-tnbda .navbar-toggler {
  border-color: rgba(255,255,255,0.4);
}
.navbar-tnbda .navbar-toggler-icon {
  filter: invert(1);
}
.navbar-logo {
  height: 48px;
  width: 48px;
  object-fit: contain;
  border-radius: 50%;
}

/* ── Hero Section ─────────────────────────────────────────── */
.hero-section {
  position: relative;
  min-height: 520px;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(45,80,22,0.82) 0%, rgba(45,80,22,0.55) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
}

/* ── Section Headings ─────────────────────────────────────── */
.section-title {
  color: var(--tnbda-green);
  font-size: 2rem;
  position: relative;
  display: inline-block;
  margin-bottom: 0.5rem;
}
.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--tnbda-orange);
  border-radius: 2px;
  margin-top: 8px;
}
[data-bs-theme="dark"] .section-title {
  color: var(--tnbda-green-light);
}

/* ── Cards ────────────────────────────────────────────────── */
.card-tnbda {
  border: none;
  border-radius: 12px;
  box-shadow: 0 4px 18px rgba(45,80,22,0.10);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  background-color: #fff;
}
.card-tnbda:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 32px rgba(45,80,22,0.18);
}
[data-bs-theme="dark"] .card-tnbda {
  background-color: #1e2e12;
}
.card-tnbda .card-header {
  background-color: var(--tnbda-green);
  color: #fff;
  border-radius: 12px 12px 0 0 !important;
  font-family: 'Playfair Display', serif;
  font-size: 1.05rem;
}

/* ── Comparison Table ─────────────────────────────────────── */
.table-comparison thead {
  background-color: var(--tnbda-green);
  color: #fff;
}
.table-comparison tbody tr:nth-child(even) {
  background-color: rgba(122,182,72,0.08);
}
.table-comparison td, .table-comparison th {
  vertical-align: middle;
  font-size: 0.9rem;
}
.badge-bio {
  background-color: var(--tnbda-green);
  color: #fff;
}
.badge-org {
  background-color: var(--tnbda-green-mid);
  color: #fff;
}
.badge-inorg {
  background-color: #c0392b;
  color: #fff;
}

/* ── Preparation Cards ────────────────────────────────────── */
.prep-badge {
  display: inline-block;
  background: var(--tnbda-orange);
  color: var(--tnbda-green);
  font-weight: 800;
  font-size: 1.1rem;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 8px;
}

/* ── Timeline (Calendar page) ─────────────────────────────── */
.timeline {
  position: relative;
  padding-left: 2.5rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0.75rem;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--tnbda-green), var(--tnbda-orange));
  border-radius: 2px;
}
.timeline-item {
  position: relative;
  margin-bottom: 1.5rem;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.4rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--tnbda-orange);
  border: 3px solid var(--tnbda-green);
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn-tnbda {
  background-color: var(--tnbda-green);
  color: #fff;
  border: none;
  font-weight: 600;
  border-radius: 8px;
  padding: 0.55rem 1.4rem;
  transition: background 0.2s ease, transform 0.15s ease;
}
.btn-tnbda:hover {
  background-color: var(--tnbda-green-mid);
  color: #fff;
  transform: translateY(-1px);
}
.btn-tnbda-outline {
  border: 2px solid var(--tnbda-green);
  color: var(--tnbda-green);
  background: transparent;
  font-weight: 600;
  border-radius: 8px;
  padding: 0.5rem 1.3rem;
  transition: all 0.2s ease;
}
.btn-tnbda-outline:hover {
  background-color: var(--tnbda-green);
  color: #fff;
}

/* ── Footer ───────────────────────────────────────────────── */
.footer-tnbda {
  background-color: var(--tnbda-green);
  color: rgba(255,255,255,0.9);
}
.footer-tnbda a {
  color: var(--tnbda-orange);
  text-decoration: none;
}
.footer-tnbda a:hover {
  color: #fff;
  text-decoration: underline;
}
.footer-tnbda .footer-heading {
  color: var(--tnbda-orange);
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

/* ── Utility Helpers ──────────────────────────────────────── */
.text-tnbda-green  { color: var(--tnbda-green) !important; }
.text-tnbda-orange { color: var(--tnbda-orange) !important; }
.bg-tnbda-green    { background-color: var(--tnbda-green) !important; }
.bg-tnbda-cream    { background-color: var(--tnbda-cream) !important; }
.border-tnbda      { border-color: var(--tnbda-green) !important; }
.divider-orange {
  border: none;
  height: 3px;
  background: linear-gradient(90deg, var(--tnbda-orange), transparent);
  margin: 1.5rem 0;
}

/* ── Theme Switcher Button ────────────────────────────────── */
#themeSwitcher {
  background: transparent;
  border: 1.5px solid rgba(255,255,255,0.5);
  color: #fff;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s;
}
#themeSwitcher:hover {
  background: rgba(255,255,255,0.15);
}

/* ── Responsive image helpers ─────────────────────────────── */
.img-panel {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 10px;
}
@media (max-width: 576px) {
  .hero-section { min-height: 360px; }
  .section-title { font-size: 1.5rem; }
}