/* ─── Base & Design Tokens ─────────────────────────────── */
:root {
  --clr-forest:     #1B5E20;
  --clr-forest-mid: #2E7D32;
  --clr-forest-lt:  #E8F5E9;
  --clr-earth:      #8D6E63;
  --clr-sand:       #F5EFE6;
  --clr-terracotta: #C1440E;
  --clr-saffron:    #E65100;
  --clr-cream:      #FAF7F2;
  --clr-warm:       #EFEBE9;
  --ease-out-expo:  cubic-bezier(0.19, 1, 0.22, 1);
}

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

html { font-size: 16px; }

body {
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
  background-color: var(--clr-cream);
  color: #1C1C1C;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
}

/* ─── Scroll-reveal base ───────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.72s var(--ease-out-expo), transform 0.72s var(--ease-out-expo);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-28px);
  transition: opacity 0.72s var(--ease-out-expo), transform 0.72s var(--ease-out-expo);
}
.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(28px);
  transition: opacity 0.72s var(--ease-out-expo), transform 0.72s var(--ease-out-expo);
}
.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* stagger delays */
.delay-100 { transition-delay: 0.10s; }
.delay-200 { transition-delay: 0.20s; }
.delay-300 { transition-delay: 0.30s; }
.delay-400 { transition-delay: 0.40s; }
.delay-500 { transition-delay: 0.50s; }
.delay-600 { transition-delay: 0.60s; }

/* ─── Navbar ───────────────────────────────────────────── */
#navbar {
  transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.3s ease;
}
#navbar.scrolled {
  background: rgba(250, 247, 242, 0.96) !important;
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 24px rgba(27, 94, 32, 0.08);
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
}

/* ─── Hero ─────────────────────────────────────────────── */
.hero-bg {
  background: url('images/hero-glass-bg.png') center/cover no-repeat fixed;
  position: relative;
  overflow: hidden;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13, 46, 16, 0.5) 0%, rgba(27, 94, 32, 0.3) 50%, rgba(0, 0, 0, 0.6) 100%);
  backdrop-filter: blur(6px);
  z-index: 0;
}

.hero-overlay {
  background: radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-text-line {
  opacity: 0;
  transform: translateY(30px);
  animation: heroReveal 0.9s var(--ease-out-expo) forwards;
}
@keyframes heroReveal {
  to { opacity: 1; transform: translateY(0); }
}

/* ─── Section Labels ───────────────────────────────────── */
.section-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--clr-terracotta);
}

/* ─── Decorative rule ──────────────────────────────────── */
.hr-leaf {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.hr-leaf::before, .hr-leaf::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(27,94,32,0.25), transparent);
}

/* ─── Metric Cards ─────────────────────────────────────── */
.metric-card {
  background: white;
  border-radius: 1.25rem;
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: 0 4px 20px rgba(27,94,32,0.07);
  border: 1px solid rgba(27,94,32,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.metric-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(27,94,32,0.12);
}
.metric-number {
  font-family: 'Inter', sans-serif;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700;
  color: var(--clr-forest);
  line-height: 1;
}

/* ─── Program Cards ────────────────────────────────────── */
.program-card {
  background: white;
  border-radius: 1.5rem;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.06);
  transition: transform 0.36s var(--ease-out-expo), box-shadow 0.36s ease;
}
.program-card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: 0 20px 56px rgba(27,94,32,0.14);
}
.program-icon-wrap {
  width: 3.5rem; height: 3.5rem;
  border-radius: 0.875rem;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem;
  transition: transform 0.3s ease;
}
.program-card:hover .program-icon-wrap { transform: scale(1.08) rotate(-2deg); }

/* ─── Gallery ──────────────────────────────────────────── */
.gallery-item {
  overflow: hidden;
  border-radius: 1rem;
  cursor: pointer;
}
.gallery-item img {
  transition: transform 0.5s var(--ease-out-expo), filter 0.4s ease;
  width: 100%; height: 100%; object-fit: cover;
}
.gallery-item:hover img {
  transform: scale(1.08);
  filter: brightness(0.88);
}
.gallery-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(27,94,32,0.7) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.36s ease;
  display: flex; align-items: flex-end;
  padding: 1.25rem;
}
.gallery-item:hover .gallery-overlay { opacity: 1; }

/* ─── Flow Steps ───────────────────────────────────────── */
.flow-step {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.5s ease, transform 0.5s var(--ease-out-expo);
}
.flow-step.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ─── Testimonial Slider ───────────────────────────────── */
.testimonial-track {
  transition: transform 0.56s var(--ease-out-expo);
}

/* ─── Lightbox ─────────────────────────────────────────── */
#lightbox {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
#lightbox.open {
  opacity: 1;
  pointer-events: all;
}
#lightbox img {
  max-width: 92vw;
  max-height: 80vh;
  border-radius: 0.75rem;
  box-shadow: 0 32px 80px rgba(0,0,0,0.5);
}

/* ─── Mobile menu ──────────────────────────────────────── */
#mobile-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-out-expo), opacity 0.3s ease;
  opacity: 0;
}
#mobile-menu.open {
  max-height: 28rem;
  opacity: 1;
}

/* ─── Credibility Badges ───────────────────────────────── */
.cred-badge {
  background: white;
  border: 1.5px solid rgba(27,94,32,0.14);
  border-radius: 1rem;
  padding: 1.25rem 1.5rem;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.cred-badge:hover {
  border-color: var(--clr-forest);
  box-shadow: 0 6px 24px rgba(27,94,32,0.10);
}

/* ─── CTA Section ──────────────────────────────────────── */
.cta-section {
  background: linear-gradient(135deg, #0d2e10 0%, #1B5E20 55%, #2d4a1e 100%);
  position: relative;
  overflow: hidden;
}
.cta-section::after {
  content: '';
  position: absolute;
  right: -8%;
  top: -20%;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: rgba(193,68,14,0.12);
  pointer-events: none;
}

/* ─── Scrollbar ────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-cream); }
::-webkit-scrollbar-thumb { background: rgba(27,94,32,0.35); border-radius: 3px; }

/* ─── Btn Styles ───────────────────────────────────────── */
.btn-primary {
  background: var(--clr-terracotta);
  color: white;
  border-radius: 0.5rem;
  padding: 0.8rem 1.8rem;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
  display: inline-flex; align-items: center; gap: 0.4rem;
}
.btn-primary:hover {
  background: #a13a0b;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(193,68,14,0.3);
}
.btn-outline {
  border: 1.5px solid rgba(255,255,255,0.7);
  color: white;
  border-radius: 0.5rem;
  padding: 0.8rem 1.8rem;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: background 0.25s, border-color 0.25s, transform 0.2s;
  display: inline-flex; align-items: center; gap: 0.4rem;
}
.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: white;
  transform: translateY(-2px);
}

/* ─── Section headings ─────────────────────────────────── */
.section-title {
  font-family: 'Inter', sans-serif;
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  font-weight: 600;
  line-height: 1.2;
  color: #111;
}

/* ─── Approach flow arrow ──────────────────────────────── */
.flow-arrow {
  color: var(--clr-terracotta);
  font-size: 1.4rem;
}

/* ─── Quote marks ──────────────────────────────────────── */
.quote-mark {
  font-family: 'Inter', sans-serif;
  font-size: 6rem;
  line-height: 0.6;
  color: rgba(27,94,32,0.12);
  user-select: none;
}

/* ─── Footer ───────────────────────────────────────────── */
footer a { transition: color 0.2s; }
footer a:hover { color: #81C784; }

/* ─── Timeline & Enhanced Gallery ────────────────────────── */
.timeline-container {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}
.timeline-line {
  position: absolute;
  left: 2.5rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, transparent, rgba(27,94,32,0.2) 5%, rgba(27,94,32,0.2) 95%, transparent);
}
.timeline-block {
  position: relative;
  margin-bottom: 5rem;
  padding-left: 5rem;
}
.timeline-year-marker {
  position: absolute;
  left: 0;
  top: 0;
  width: 5rem;
  text-align: center;
  z-index: 2;
}
.year-badge {
  display: inline-block;
  background: var(--clr-forest);
  color: white;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.35rem 0.6rem;
  border-radius: 99px;
  box-shadow: 0 4px 12px rgba(27,94,32,0.25);
  transform: rotate(-5deg);
}
.timeline-content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.year-nav-container {
  display: flex;
  overflow-x: auto;
  gap: 1rem;
  padding: 1rem 0;
  margin-bottom: 2rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.year-nav-container::-webkit-scrollbar {
  display: none;
}
.year-pill {
  white-space: nowrap;
  padding: 0.6rem 1.25rem;
  border-radius: 99px;
  background: white;
  border: 1px solid rgba(0,0,0,0.1);
  color: var(--clr-forest);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.3s ease;
}
.year-pill.active {
  background: var(--clr-forest);
  color: white;
  border-color: var(--clr-forest);
  box-shadow: 0 4px 12px rgba(27,94,32,0.2);
}
.year-content-slider {
  position: relative;
  min-height: 400px;
}
.year-slide {
  position: absolute;
  top: 0; left: 0; width: 100%;
  opacity: 0;
  visibility: hidden;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(20px);
}
.year-slide.active {
  position: relative;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.event-grid-slider {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}
@media (max-width: 640px) {
  .event-grid-slider {
    grid-template-columns: 1fr;
  }
}

.glass-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
}
.glass-card-dark {
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.year-indicator {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.event-featured-card {
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.event-featured-card:hover .glass-card-dark {
  background: rgba(0, 0, 0, 0.4);
  transform: translateY(-5px);
}
.glass-card-dark {
  transition: all 0.4s ease;
}

.event-slider-container {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  gap: 1.5rem;
  padding-bottom: 2rem;
}
.event-slide-item {
  scroll-snap-align: center;
  flex: 0 0 85%;
  max-width: 800px;
  position: relative;
}
@media (min-width: 768px) {
  .event-slide-item {
    flex: 0 0 70%;
  }
}
@media (min-width: 1024px) {
  .event-slide-item {
    flex: 0 0 60%;
  }
}
.event-slide-item .glass-card-dark {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem;
  margin: 1.5rem;
  border-radius: 1.5rem;
}

.event-card {
  background: white;
  border-radius: 1.25rem;
  padding: 1.5rem;
  border: 1px solid rgba(0,0,0,0.04);
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
  transition: all 0.35s var(--ease-out-expo);
  position: relative;
  overflow: hidden;
  height: 100%;
}
.event-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(27,94,32,0.08);
  border-color: rgba(27,94,32,0.15);
}
.event-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 4px;
  background: var(--card-accent, var(--clr-forest));
  opacity: 0.6;
}
.event-tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  margin-bottom: 0.75rem;
  background: var(--tag-bg, rgba(27,94,32,0.08));
  color: var(--tag-color, var(--clr-forest));
}
.event-card h4 {
  font-weight: 700;
  font-size: 1rem;
  color: #1a1a1a;
  line-height: 1.4;
  margin-bottom: 0.5rem;
}
.event-meta {
  font-size: 0.75rem;
  color: #777;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Category Accent Colors */
.cat-env { --card-accent: #2E7D32; --tag-bg: #E8F5E9; --tag-color: #1B5E20; }
.cat-skill { --card-accent: #C1440E; --tag-bg: #F9EDE4; --tag-color: #C1440E; }
.cat-culture { --card-accent: #5D4037; --tag-bg: #EFEBE9; --tag-color: #5D4037; }
.cat-edu { --card-accent: #1565C0; --tag-bg: #E3F2FD; --tag-color: #1565C0; }

/* ─── Responsive ───────────────────────────────────────── */
@media (max-width: 640px) {
  .metric-number { font-size: 2rem; }
  .hero-text-line { animation-duration: 0.7s; }
  .timeline-block { padding-left: 3.5rem; }
  .timeline-line { left: 1.25rem; }
  .timeline-year-marker { width: 2.5rem; }
  .year-badge { font-size: 0.6rem; padding: 0.25rem 0.45rem; }
}