/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green: #16a34a;
  --green-light: #22c55e;
  --green-dark: #15803d;
  --green-bg: #f0fdf4;
  --blue: #2563eb;
  --red: #dc2626;
  --orange: #ea580c;
  --purple: #7c3aed;
  --teal: #0d9488;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --white: #ffffff;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -2px rgba(0,0,0,.1);
  --shadow-md: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -4px rgba(0,0,0,.1);
  --shadow-lg: 0 20px 25px -5px rgba(0,0,0,.1), 0 8px 10px -6px rgba(0,0,0,.1);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all .2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== NAVBAR ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-icon { font-size: 28px; }
.logo-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--green);
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.nav-link {
  text-decoration: none;
  color: var(--gray-600);
  font-weight: 500;
  font-size: 15px;
  padding: 8px 14px;
  border-radius: 8px;
  transition: var(--transition);
}
.nav-link:hover { color: var(--green); background: var(--green-bg); }

.nav-cta {
  background: var(--green);
  color: var(--white) !important;
  padding: 9px 20px;
  border-radius: 10px;
}
.nav-cta:hover { background: var(--green-dark) !important; color: var(--white) !important; }

.lang-switcher {
  display: flex;
  gap: 4px;
  background: var(--gray-100);
  padding: 4px;
  border-radius: 10px;
}

.lang-btn {
  background: none;
  border: none;
  padding: 5px 10px;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  color: var(--gray-500);
  transition: var(--transition);
}
.lang-btn.active {
  background: var(--white);
  color: var(--green);
  box-shadow: var(--shadow-sm);
}
.lang-btn:hover:not(.active) { color: var(--gray-700); }

.hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--gray-700);
  margin-left: auto;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 12px 24px 16px;
  border-top: 1px solid var(--gray-200);
  gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  text-decoration: none;
  color: var(--gray-700);
  font-weight: 500;
  padding: 10px 12px;
  border-radius: 8px;
  transition: var(--transition);
}
.mobile-menu a:hover { background: var(--green-bg); color: var(--green); }

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 40%, #bbf7d0 100%);
  padding: 80px 24px 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 60px;
  max-width: 1200px;
  margin: 0 auto;
  min-height: 85vh;
}

.hero-content { flex: 1; max-width: 580px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
  border: 1px solid var(--green-light);
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.hero-title {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--gray-900);
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.highlight {
  background: linear-gradient(135deg, var(--green), var(--green-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 18px;
  color: var(--gray-600);
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--green), var(--green-light));
  color: var(--white);
  border: none;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(22,163,74,.35);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(22,163,74,.4);
}

.btn-secondary {
  background: var(--white);
  color: var(--green);
  border: 2px solid var(--green);
  padding: 12px 28px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.btn-secondary:hover { background: var(--green-bg); transform: translateY(-2px); }

.btn-large { padding: 16px 36px; font-size: 18px; }
.btn-full { width: 100%; justify-content: center; }

.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; }
.stat-num { font-size: 24px; font-weight: 800; color: var(--green-dark); }
.stat-label { font-size: 13px; color: var(--gray-500); font-weight: 500; }

.hero-image {
  flex: 1;
  max-width: 400px;
  display: flex;
  justify-content: center;
}

.hero-card-float {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
}

.float-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-100);
  animation: floatUp 3s ease-in-out infinite;
}
.float-card span { font-size: 32px; }
.float-card strong { display: block; font-size: 15px; color: var(--gray-800); }
.float-card small { font-size: 12px; color: var(--gray-500); }

.card1 { animation-delay: 0s; }
.card2 { animation-delay: 1s; margin-left: 30px; }
.card3 { animation-delay: 2s; }

@keyframes floatUp {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ===== CATEGORIES ===== */
.categories {
  padding: 40px 0 20px;
  background: var(--white);
  border-bottom: 1px solid var(--gray-100);
}

.section-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.cat-grid {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.cat-btn {
  background: var(--gray-100);
  border: 2px solid transparent;
  color: var(--gray-600);
  padding: 9px 18px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.cat-btn:hover { background: var(--green-bg); color: var(--green); border-color: var(--green-light); }
.cat-btn.active { background: var(--green); color: var(--white); border-color: var(--green); }

/* ===== CAMPAIGNS ===== */
.campaigns { padding: 60px 0; background: var(--gray-50); }

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-box input {
  padding: 10px 16px 10px 40px;
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  font-size: 14px;
  width: 260px;
  transition: var(--transition);
  background: var(--white);
}
.search-box input:focus { outline: none; border-color: var(--green); }
.search-icon {
  position: absolute;
  left: 12px;
  font-size: 16px;
  pointer-events: none;
}

.campaigns-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

/* Campaign Card */
.campaign-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.campaign-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.card-image {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 64px;
  position: relative;
}

.card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(4px);
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-700);
}

.card-urgent {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--red);
  color: var(--white);
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.7} }

.card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }

.card-organizer {
  font-size: 12px;
  color: var(--gray-500);
  margin-bottom: 8px;
  font-weight: 500;
}

.card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 10px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-desc {
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 16px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.progress-section { margin-bottom: 16px; }

.progress-bar {
  height: 8px;
  background: var(--gray-200);
  border-radius: 100px;
  overflow: hidden;
  margin-bottom: 8px;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--green), var(--green-light));
  border-radius: 100px;
  transition: width .8s ease;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
}
.progress-raised { font-weight: 700; color: var(--green-dark); }
.progress-goal { color: var(--gray-500); }

.card-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--gray-500);
  margin-bottom: 16px;
}

.card-actions { display: flex; gap: 10px; }

.btn-donate {
  flex: 1;
  background: linear-gradient(135deg, var(--green), var(--green-light));
  color: var(--white);
  border: none;
  padding: 11px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.btn-donate:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(22,163,74,.3); }

.btn-share {
  background: var(--gray-100);
  border: none;
  padding: 11px 14px;
  border-radius: 10px;
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
}
.btn-share:hover { background: var(--gray-200); }

/* ===== HOW IT WORKS ===== */
.how-it-works { padding: 80px 0; background: var(--white); }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  margin-top: 16px;
}

.step {
  text-align: center;
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); background: var(--green-bg); }

.step-icon {
  font-size: 48px;
  margin-bottom: 16px;
  display: block;
}
.step h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--gray-900); }
.step p { font-size: 14px; color: var(--gray-500); line-height: 1.7; }

/* ===== CTA ===== */
.cta-section { padding: 80px 0; background: var(--gray-50); }

.cta-box {
  background: linear-gradient(135deg, var(--green-dark), var(--green));
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  text-align: center;
  color: var(--white);
  box-shadow: 0 20px 40px rgba(22,163,74,.3);
}
.cta-box h2 { font-size: 36px; font-weight: 800; margin-bottom: 16px; letter-spacing: -0.5px; }
.cta-box p { font-size: 18px; opacity: .85; margin-bottom: 32px; }
.cta-box .btn-primary {
  background: var(--white);
  color: var(--green-dark);
  box-shadow: 0 4px 14px rgba(0,0,0,.15);
}
.cta-box .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,.2); }

/* ===== FOOTER ===== */
.footer { background: var(--gray-900); color: var(--gray-300); padding: 60px 0 0; }

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand .logo-text { color: var(--green-light); }
.footer-brand p { margin-top: 12px; font-size: 14px; line-height: 1.7; color: var(--gray-400); }

.footer-links h4 { font-size: 14px; font-weight: 700; color: var(--white); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.5px; }
.footer-links a { display: block; color: var(--gray-400); text-decoration: none; font-size: 14px; margin-bottom: 10px; transition: var(--transition); }
.footer-links a:hover { color: var(--green-light); }

.footer-bottom {
  border-top: 1px solid var(--gray-700);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--gray-500);
}

.social-links { display: flex; gap: 12px; }
.social-links a { font-size: 20px; text-decoration: none; transition: var(--transition); }
.social-links a:hover { transform: scale(1.2); }

/* ===== MODAL ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.open { display: flex; }

.modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-lg);
  animation: slideUp .3s ease;
}
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--gray-100);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-close:hover { background: var(--gray-200); }

.modal h2 { font-size: 22px; font-weight: 800; margin-bottom: 24px; color: var(--gray-900); }

.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--gray-700); margin-bottom: 6px; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
  background: var(--white);
  color: var(--gray-800);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { outline: none; border-color: var(--green); }

.amount-presets {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 10px;
}
.preset-btn {
  background: var(--gray-100);
  border: 2px solid transparent;
  padding: 8px 4px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  color: var(--gray-700);
}
.preset-btn:hover, .preset-btn.selected { background: var(--green-bg); border-color: var(--green); color: var(--green); }

.payment-methods { margin-bottom: 20px; }
.payment-methods label:first-child { display: block; font-size: 14px; font-weight: 600; color: var(--gray-700); margin-bottom: 10px; }

.payment-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.payment-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 600;
  font-size: 14px;
}
.payment-option:has(input:checked) { border-color: var(--green); background: var(--green-bg); color: var(--green); }
.payment-option input { accent-color: var(--green); }

.donate-target-info {
  background: var(--green-bg);
  border: 1px solid var(--green-light);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 20px;
  font-size: 14px;
  color: var(--green-dark);
  font-weight: 600;
}

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--gray-900);
  color: var(--white);
  padding: 14px 22px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  transform: translateY(100px);
  opacity: 0;
  transition: all .3s ease;
  z-index: 2000;
  max-width: 320px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { background: var(--green); }
.toast.error { background: var(--red); }

/* ===== EMPTY STATE ===== */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-400);
}
.empty-state span { font-size: 48px; display: block; margin-bottom: 12px; }
.empty-state p { font-size: 16px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero { flex-direction: column; padding: 60px 24px 80px; min-height: auto; gap: 40px; }
  .hero-image { max-width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .hamburger { display: block; }
  .hero-title { font-size: 32px; }
  .hero-stats { gap: 20px; }
  .section-header { flex-direction: column; align-items: flex-start; }
  .search-box input { width: 100%; }
  .search-box { width: 100%; }
  .cta-box { padding: 40px 24px; }
  .cta-box h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .amount-presets { grid-template-columns: repeat(2, 1fr); }
  .modal { padding: 24px; }
  .float-card { padding: 14px 16px; }
  .card2 { margin-left: 0; }
}