:root {
  /* Color Palette - Wildlife Theme */
  --primary: #D4A574;
  --primary-dark: #B8956A;
  --secondary: #2B5F4C;
  --secondary-light: #3D7A64;
  --accent: #E8974F;
  --accent-light: #F4B76B;

  /* Dark Theme Colors */
  --bg-dark: #0F1419;
  --bg-card: #1A1F2E;
  --bg-card-hover: #242B3D;
  --bg-gradient-start: #0F1419;
  --bg-gradient-end: #1A2332;

  /* Text Colors */
  --text-primary: #FFFFFF;
  --text-secondary: #A0AEC0;
  --text-muted: #718096;

  /* Tier Colors */
  --tier-bronze: #CD7F32;
  --tier-silver: #C0C0C0;
  --tier-gold: #FFD700;
  --tier-diamond: #B9F2FF;

  /* Effects */
  --glow-primary: 0 0 20px rgba(212, 165, 116, 0.4);
  --glow-accent: 0 0 30px rgba(232, 151, 79, 0.3);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.4);

  /* Glass Effect */
  --glass-bg: rgba(26, 31, 46, 0.8);
  --glass-border: rgba(255, 255, 255, 0.1);

  /* Typography */
  --font-primary: 'Outfit', sans-serif;
  --font-display: 'Montserrat', sans-serif;

  /* Spacing */
  --section-padding: 10px 20px;
  --card-padding: 24px;
  --border-radius: 16px;
  --border-radius-lg: 24px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Reset & Base */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Background Pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(circle at 20% 80%, rgba(212, 165, 116, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(43, 95, 76, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(232, 151, 79, 0.03) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
  min-height: auto;
  padding-top: 60px;
  padding-bottom: 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--section-padding);
  position: relative;
}

.hero-logo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--primary);
  box-shadow: var(--glow-primary);
  animation: logoGlow 3s ease-in-out infinite;
  margin-bottom: 24px;
}

@keyframes logoGlow {

  0%,
  100% {
    box-shadow: var(--glow-primary);
  }

  50% {
    box-shadow: 0 0 40px rgba(212, 165, 116, 0.6);
  }
}

.hero-title {
  color: var(--text-primary);
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-title span {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-bottom: 40px;
  flex-wrap: wrap;
  justify-content: center;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-display);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--bg-dark);
  font-size: 1.1rem;
  font-weight: 600;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  box-shadow: var(--glow-accent);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 50px rgba(232, 151, 79, 0.5);
}

.cta-button svg {
  animation: bounce 2s infinite;
}

@keyframes bounce {

  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }

  40% {
    transform: translateY(5px);
  }

  60% {
    transform: translateY(3px);
  }
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {

  0%,
  100% {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
  }

  50% {
    transform: translateX(-50%) translateY(10px);
    opacity: 0.5;
  }
}

/* ==========================================
   DONATION SECTION
   ========================================== */
.donation-section {
  padding: 10px 20px 80px;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  animation: pulse 2s infinite;
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.1);
  }
}

.section-title {
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

.donation-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
}

.donation-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(212, 165, 116, 0.3);
}

.qr-section {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.qr-wrapper {
  background: white;
  padding: 8px;
  border-radius: var(--border-radius);
  margin-bottom: 16px;
  transition: transform var(--transition-normal);
  display: inline-block;
  overflow: hidden;
  max-width: 240px;
}

.qr-wrapper:hover {
  transform: scale(1.02);
}

.qr-image {
  display: block;
  width: 100%;
  height: auto;
}

.qr-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.bank-info {
  text-align: left;
}

.bank-info h3 {
  color: var(--accent);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--glass-border);
}

.info-row:last-of-type {
  border-bottom: none;
}

.info-label {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.info-value {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.copy-btn {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.copy-btn:hover {
  background: var(--primary);
  color: var(--bg-dark);
  border-color: var(--primary);
}

.copy-btn.copied {
  background: var(--secondary);
  border-color: var(--secondary);
  color: white;
}

.transfer-note {
  margin-top: 24px;
  padding: 16px;
  background: rgba(232, 151, 79, 0.1);
  border-radius: var(--border-radius);
  border-left: 4px solid var(--accent);
}

.transfer-note p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.transfer-note code {
  background: rgba(255, 255, 255, 0.1);
  padding: 4px 8px;
  border-radius: 4px;
  font-family: monospace;
  color: var(--accent);
}

/* ==========================================
   LEADERBOARD SECTION
   ========================================== */
.leaderboard-section {
  padding: var(--section-padding);
}

.leaderboard-container {
  max-width: 1000px;
  margin: 0 auto;
}

/* Progress Bar */
.progress-container {
  margin-bottom: 60px;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.progress-title {
  font-size: 1rem;
  color: var(--text-secondary);
}

.progress-amount {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.progress-bar {
  height: 16px;
  background: var(--bg-card);
  border-radius: 50px;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 50px;
  transition: width 1s ease;
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }

  100% {
    transform: translateX(100%);
  }
}

.progress-goal {
  text-align: right;
  margin-top: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Leaderboard Grid */
.leaderboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.leaderboard-column {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: var(--card-padding);
}

.column-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--glass-border);
}

.column-header h3 {
  font-size: 1.2rem;
}

.donor-list {
  list-style: none;
}

.donor-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  margin-bottom: 12px;
  background: var(--bg-card);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  animation: fadeInUp 0.5s ease forwards;
  opacity: 0;
}

.donor-item:nth-child(1) {
  animation-delay: 0.1s;
}

.donor-item:nth-child(2) {
  animation-delay: 0.2s;
}

.donor-item:nth-child(3) {
  animation-delay: 0.3s;
}

.donor-item:nth-child(4) {
  animation-delay: 0.4s;
}

.donor-item:nth-child(5) {
  animation-delay: 0.5s;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.donor-item:hover {
  background: var(--bg-card-hover);
  transform: translateX(5px);
}

.donor-rank {
  font-size: 1.5rem;
  width: 40px;
  text-align: center;
}

.donor-rank.gold {
  color: var(--tier-gold);
}

.donor-rank.silver {
  color: var(--tier-silver);
}

.donor-rank.bronze {
  color: var(--tier-bronze);
}

.donor-info {
  flex: 1;
}

.donor-name {
  font-weight: 600;
  margin-bottom: 4px;
}

.donor-badge {
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 50px;
  display: inline-block;
}

.badge-chick {
  background: rgba(255, 193, 7, 0.2);
  color: #FFC107;
}

.badge-fox {
  background: rgba(205, 127, 50, 0.2);
  color: var(--tier-bronze);
}

.badge-lion {
  background: rgba(192, 192, 192, 0.2);
  color: var(--tier-silver);
}

.badge-elephant {
  background: rgba(255, 215, 0, 0.2);
  color: var(--tier-gold);
}

.badge-eagle {
  background: rgba(185, 242, 255, 0.2);
  color: var(--tier-diamond);
}

.donor-amount {
  font-weight: 700;
  color: var(--accent);
}

.donor-time {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.donor-message {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 4px;
  font-style: italic;
}

/* Top 3 Special Styling */
.donor-item.top-1 {
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.1), rgba(255, 215, 0, 0.05));
  border: 1px solid rgba(255, 215, 0, 0.3);
}

.donor-item.top-2 {
  background: linear-gradient(135deg, rgba(192, 192, 192, 0.1), rgba(192, 192, 192, 0.05));
  border: 1px solid rgba(192, 192, 192, 0.3);
}

.donor-item.top-3 {
  background: linear-gradient(135deg, rgba(205, 127, 50, 0.1), rgba(205, 127, 50, 0.05));
  border: 1px solid rgba(205, 127, 50, 0.3);
}

/* Crown Animation */
.crown {
  animation: float 3s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-5px);
  }
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
  padding: 40px 20px;
  text-align: center;
  border-top: 1px solid var(--glass-border);
}

.footer-logo {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 20px;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--primary);
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-copyright span {
  color: var(--accent);
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */
@media (max-width: 768px) {
  :root {
    --section-padding: 60px 16px;
    --card-padding: 20px;
  }

  .donation-card {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .bank-info {
    text-align: center;
  }

  .info-row {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

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

  .hero-stats {
    gap: 24px;
  }

  .hero-logo {
    width: 140px;
    height: 140px;
  }

  .qr-wrapper {
    max-width: 200px;
  }
}

@media (max-width: 480px) {
  .cta-button {
    padding: 14px 30px;
    font-size: 1rem;
  }

  .donation-card {
    padding: 24px 16px;
  }

  .donor-item {
    padding: 12px;
    gap: 12px;
  }

  .donor-rank {
    font-size: 1.2rem;
    width: 32px;
  }
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */
.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}