:root {
  --black: #0f1a0f;
  --white: #ffffff;
  --off-white: #f8f6f3;
  --cream: #faf8f5;
  --green-darkest: #1a3a1a;
  --green-dark: #1e4d2b;
  --green: #2d7a3a;
  --green-mid: #3a9e4a;
  --green-light: #5cb86a;
  --green-pale: #e8f5e2;
  --green-glow: rgba(45,122,58,0.15);
  --gold: #d4a017;
  --gold-warm: #e8b830;
  --gold-light: #f5e6b8;
  --gold-pale: #fdf6e3;
  --gray-50: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-500: #737373;
  --gray-600: #525252;
  --gray-700: #404040;
  --gray-800: #262626;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
  --shadow-green: 0 4px 24px rgba(30,77,43,0.20);
  --shadow-gold: 0 4px 24px rgba(212,160,23,0.20);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --max-width: 1140px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--green-pale); color: var(--green-dark); }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ===== NAV ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}
.nav.scrolled {
  border-bottom-color: rgba(0,0,0,0.06);
  box-shadow: 0 1px 12px rgba(0,0,0,0.04);
}
.nav-inner {
  max-width: var(--max-width); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 24px; height: 64px;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--black);
}
.nav-logo-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--green-dark), var(--green));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow-green);
}
.nav-logo-text {
  font-family: 'Fraunces', serif;
  font-weight: 800; font-size: 18px;
  letter-spacing: -0.5px;
}
.nav-links { display: flex; gap: 8px; list-style: none; }
.nav-links a {
  text-decoration: none; color: var(--gray-600);
  font-size: 14px; font-weight: 500;
  padding: 6px 14px; border-radius: 100px;
  transition: var(--transition);
}
.nav-links a:hover { color: var(--green-dark); background: var(--green-pale); }
.nav-cta {
  background: var(--green-dark) !important;
  color: var(--white) !important;
  padding: 7px 18px !important;
  font-weight: 600 !important;
  box-shadow: var(--shadow-green);
}
.nav-cta:hover { background: var(--green) !important; transform: translateY(-1px); }
.mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.mobile-toggle span { display: block; width: 22px; height: 2px; background: var(--gray-800); margin: 5px 0; border-radius: 2px; transition: var(--transition); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 100px 24px 80px;
  background: linear-gradient(160deg, #0a1f0d 0%, #132d18 30%, #1a4025 60%, #1e4d2b 100%);
  color: var(--white);
  position: relative; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; overflow: hidden;
}
.hero-bg::before {
  content: '';
  position: absolute; top: -50%; right: -20%;
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(92,184,106,0.15) 0%, transparent 70%);
  animation: heroGlow 8s ease-in-out infinite;
}
.hero-bg::after {
  content: '';
  position: absolute; bottom: -30%; left: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(212,160,23,0.08) 0%, transparent 70%);
  animation: heroGlow 10s ease-in-out infinite reverse;
}
@keyframes heroGlow {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -20px) scale(1.1); }
}
.hero-particles {
  position: absolute; inset: 0;
  background-image:
    radial-gradient(1px 1px at 10% 20%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 30% 60%, rgba(255,255,255,0.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 50% 30%, rgba(255,255,255,0.25) 0%, transparent 100%),
    radial-gradient(1px 1px at 70% 70%, rgba(255,255,255,0.15) 0%, transparent 100%),
    radial-gradient(1px 1px at 90% 40%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 20% 80%, rgba(92,184,106,0.3) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 80% 20%, rgba(212,160,23,0.2) 0%, transparent 100%);
  animation: twinkle 4s ease-in-out infinite alternate;
}
@keyframes twinkle { 0% { opacity: 0.6; } 100% { opacity: 1; } }

.hero-inner {
  max-width: var(--max-width); margin: 0 auto;
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center;
}
.hero-text h1 {
  font-family: 'Fraunces', serif;
  font-size: clamp(40px, 5.5vw, 64px);
  font-weight: 800; line-height: 1.05;
  margin-bottom: 24px;
  letter-spacing: -1.5px;
}
.hero-text h1 .highlight {
  background: linear-gradient(135deg, var(--gold-warm), var(--gold-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-text p {
  font-size: 18px; line-height: 1.8;
  opacity: 0.85; margin-bottom: 36px;
  max-width: 480px;
}
.hero-buttons { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 100px;
  font-weight: 600; font-size: 15px;
  text-decoration: none; transition: var(--transition);
  border: none; cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-warm));
  color: var(--black);
  box-shadow: var(--shadow-gold);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 28px rgba(212,160,23,0.30); }
.btn-outline {
  background: rgba(255,255,255,0.08);
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(4px);
}
.btn-outline:hover { background: rgba(255,255,255,0.14); border-color: rgba(255,255,255,0.4); }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 6px 14px; border-radius: 100px;
  font-size: 13px; font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
  letter-spacing: 0.3px;
}
.hero-badge-dot { width: 6px; height: 6px; background: var(--green-light); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

.hero-visual {
  display: flex; justify-content: center; align-items: center;
  position: relative;
}
.hero-panda {
  width: 280px; height: 280px;
  background: rgba(255,255,255,0.05);
  border: 2px solid rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 140px;
  animation: float 6s ease-in-out infinite;
  position: relative;
}
.hero-panda::after {
  content: ''; position: absolute; inset: -20px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.05);
  animation: float 6s ease-in-out infinite reverse;
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }

.hero-stats {
  display: flex; gap: 32px; margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.hero-stat { text-align: left; }
.hero-stat-number {
  font-family: 'Fraunces', serif;
  font-size: 28px; font-weight: 800;
  color: var(--gold-warm);
}
.hero-stat-label { font-size: 13px; opacity: 0.6; margin-top: 2px; }

/* ===== SECTIONS ===== */
section { padding: 100px 24px; }
.section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 2px;
  color: var(--green); margin-bottom: 14px;
}
.section-label::before {
  content: ''; width: 20px; height: 2px; background: var(--green);
  border-radius: 2px;
}
.section-title {
  font-family: 'Fraunces', serif;
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800; color: var(--black);
  margin-bottom: 16px; letter-spacing: -0.5px;
  line-height: 1.15;
}
.section-desc {
  font-size: 17px; color: var(--gray-500);
  max-width: 520px; line-height: 1.7;
}
.section-header { margin-bottom: 56px; }
.section-header.center { text-align: center; }
.section-header.center .section-desc { margin: 0 auto; }

/* ===== MISSION ===== */
.mission {
  background: var(--off-white);
  position: relative;
}
.mission::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gray-200), transparent);
}
.mission-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 72px;
  align-items: center;
}
.mission-text p { font-size: 17px; color: var(--gray-600); margin-bottom: 20px; line-height: 1.85; }
.mission-text p:first-of-type::first-letter {
  font-family: 'Fraunces', serif;
  font-size: 48px; font-weight: 800;
  float: left; line-height: 1;
  margin-right: 8px; margin-top: 4px;
  color: var(--green-dark);
}
.mission-values { display: flex; flex-direction: column; gap: 14px; }
.mission-value {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--white);
  padding: 22px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.mission-value:hover {
  border-color: var(--green-pale);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}
.mission-value-icon {
  width: 46px; height: 46px; min-width: 46px;
  background: linear-gradient(135deg, var(--green-pale), #f0faf0);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
}
.mission-value h3 { font-size: 16px; font-weight: 700; margin-bottom: 4px; color: var(--gray-800); }
.mission-value p { font-size: 14px; color: var(--gray-500); margin: 0; line-height: 1.6; }

/* ===== EVENTS ===== */
.events {
  background: var(--white);
  position: relative;
}
.events-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.event-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.event-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--green), var(--green-mid));
  opacity: 0; transition: var(--transition);
}
.event-card:hover::before { opacity: 1; }
.event-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: transparent;
}
.event-card-date {
  display: inline-flex; flex-direction: column; align-items: center;
  background: var(--green-dark); color: var(--white);
  padding: 8px 14px; border-radius: var(--radius-sm);
  font-weight: 700; line-height: 1.2;
  min-width: 60px;
}
.event-card-date .month { font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; opacity: 0.7; }
.event-card-date .day { font-size: 22px; }
.event-card-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 10px; gap: 12px; }
.event-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; color: var(--gray-800); line-height: 1.3; }
.event-card-meta { font-size: 13px; color: var(--gray-400); margin-bottom: 12px; display: flex; align-items: center; gap: 6px; }
.event-card-desc { font-size: 14px; color: var(--gray-600); line-height: 1.65; }
.event-card-tag {
  display: inline-block; margin-top: 14px;
  padding: 4px 12px; border-radius: 100px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.3px;
  text-transform: uppercase;
  background: var(--green-pale); color: var(--green-dark);
}
.event-card-tag.gold { background: var(--gold-pale); color: #8a6d00; }
.event-card-tag.dark { background: var(--gray-800); color: var(--white); }

/* ===== LEADERSHIP ===== */
.leadership {
  background: var(--off-white);
  position: relative;
}
.leadership::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gray-200), transparent);
}
.leaders-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.leader-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  position: relative;
}
.leader-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--green-pale);
}
.leader-avatar {
  width: 76px; height: 76px; margin: 0 auto 18px;
  background: linear-gradient(135deg, var(--green-dark), var(--green));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; font-weight: 800;
  color: var(--white);
  font-family: 'Fraunces', serif;
  box-shadow: var(--shadow-green);
  letter-spacing: 1px;
}
.leader-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 2px; color: var(--gray-800); }
.leader-card .role { font-size: 13px; color: var(--green); font-weight: 600; margin-bottom: 10px; letter-spacing: 0.3px; }
.leader-card .bio { font-size: 13px; color: var(--gray-500); line-height: 1.6; }

/* ===== GET INVOLVED ===== */
.involve {
  background: var(--white);
}
.involve-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.involve-card {
  background: var(--off-white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}
.involve-card:hover {
  background: var(--white);
  box-shadow: var(--shadow-md);
  border-color: var(--green-pale);
  transform: translateY(-2px);
}
.involve-icon { font-size: 40px; margin-bottom: 14px; display: block; }
.involve-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--gray-800); }
.involve-card p { font-size: 14px; color: var(--gray-500); line-height: 1.65; }
.involve-card strong { color: var(--green-dark); }

/* ===== CTA BANNER ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--green-darkest) 0%, var(--green-dark) 50%, var(--green) 100%);
  color: var(--white);
  text-align: center;
  padding: 80px 24px;
  position: relative; overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    radial-gradient(1px 1px at 15% 25%, rgba(255,255,255,0.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 55% 65%, rgba(255,255,255,0.15) 0%, transparent 100%),
    radial-gradient(1px 1px at 85% 35%, rgba(255,255,255,0.2) 0%, transparent 100%);
}
.cta-banner h2 {
  font-family: 'Fraunces', serif;
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 800; margin-bottom: 12px;
  position: relative;
}
.cta-banner p {
  font-size: 17px; opacity: 0.85; margin-bottom: 28px;
  position: relative;
}
.cta-banner .btn-primary {
  position: relative;
  font-size: 16px; padding: 16px 36px;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--black); color: rgba(255,255,255,0.6);
  padding: 56px 24px 32px;
}
.footer-inner {
  max-width: var(--max-width); margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px;
}
.footer-brand h3 {
  font-family: 'Fraunces', serif;
  font-size: 20px; color: var(--white);
  margin-bottom: 12px; font-weight: 700;
}
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 300px; }
.footer-col h4 {
  font-size: 11px; font-weight: 700; color: rgba(255,255,255,0.4);
  text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 16px;
}
.footer-col a {
  display: block; color: rgba(255,255,255,0.5); text-decoration: none;
  font-size: 14px; padding: 5px 0; transition: color 0.2s;
}
.footer-col a:hover { color: var(--gold-light); }
.footer-bottom {
  max-width: var(--max-width); margin: 36px auto 0;
  padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.06);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-text p { margin: 0 auto 36px; }
  .hero-buttons { justify-content: center; }
  .hero-visual { display: none; }
  .hero-stats { justify-content: center; }
  .mission-grid { grid-template-columns: 1fr; gap: 48px; }
  .events-grid, .leaders-grid, .involve-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--white); padding: 12px 20px;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
    gap: 4px;
  }
  .nav-links.open a { padding: 10px 14px; border-radius: var(--radius-sm); }
  .mobile-toggle { display: block; }
  section { padding: 64px 20px; }
  .events-grid, .leaders-grid, .involve-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 16px; align-items: center; }
  .footer-inner { grid-template-columns: 1fr; }
}

/* ===== ANNOUNCEMENT BAR ===== */
.announcement-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  background: linear-gradient(90deg, #1a3a1a, #2d7a3a);
  color: var(--white);
  font-size: 14px;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), top 0.3s;
}
.announcement-bar.hidden { transform: translateY(-100%); }
.announcement-inner {
  max-width: var(--max-width); margin: 0 auto;
  display: flex; align-items: center; gap: 12px;
  padding: 10px 24px; height: 44px;
}
.announcement-icon { font-size: 20px; }
.announcement-text { flex: 1; line-height: 1.3; }
.announcement-text strong { font-weight: 700; }
.announcement-link {
  color: var(--gold-light);
  font-weight: 600; font-size: 13px;
  text-decoration: none; white-space: nowrap;
  padding: 4px 14px; border-radius: 100px;
  background: rgba(255,255,255,0.12);
  transition: var(--transition);
}
.announcement-link:hover { background: rgba(255,255,255,0.22); }
.announcement-close {
  background: none; border: none; color: rgba(255,255,255,0.5);
  cursor: pointer; font-size: 16px; padding: 4px 6px;
  border-radius: 4px; transition: var(--transition);
  line-height: 1;
}
.announcement-close:hover { color: var(--white); background: rgba(255,255,255,0.1); }
body.announcement-dismissed .nav { top: 0 !important; }

/* ===== ANIMATIONS ===== */
.fade-up {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up:nth-child(2) { transition-delay: 0.08s; }
.fade-up:nth-child(3) { transition-delay: 0.16s; }
.fade-up:nth-child(4) { transition-delay: 0.24s; }
.fade-up:nth-child(5) { transition-delay: 0.32s; }
.fade-up:nth-child(6) { transition-delay: 0.40s; }