:root {
  --primary: #7C3AED;
  --secondary: #EC4899;
  --accent: #F59E0B;
  --text: #1F2937;
  --bg: #FFFFFF;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans TC', system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
}

.font-display {
  font-family: 'Outfit', 'Noto Sans TC', sans-serif;
}

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

.hero-slide {
  opacity: 0;
  transition: opacity 1s ease-in-out;
}
.hero-slide.active { opacity: 1; }

.glass-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(124, 58, 237, 0.1);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(124, 58, 237, 0.3);
}

.btn-outline {
  border: 2px solid var(--primary);
  color: var(--primary);
  transition: all 0.2s;
}
.btn-outline:hover {
  background: var(--primary);
  color: white;
}

.venue-card:hover .venue-img { transform: scale(1.05); }
.venue-img { transition: transform 0.5s ease; }

.facility-icon {
  background: linear-gradient(135deg, rgba(124,58,237,0.1), rgba(236,72,153,0.1));
}

.review-card {
  border-left: 4px solid var(--primary);
}

.faq-item[open] summary { color: var(--primary); }
.faq-item summary { cursor: pointer; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }

.lightbox {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.lightbox.open {
  opacity: 1;
  visibility: visible;
}

.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 50;
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0%, 100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5); }
  50% { box-shadow: 0 0 0 12px rgba(37, 211, 102, 0); }
}

.nav-scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.section-pattern {
  background-image: radial-gradient(circle at 20% 50%, rgba(124,58,237,0.05) 0%, transparent 50%),
                    radial-gradient(circle at 80% 20%, rgba(236,72,153,0.05) 0%, transparent 50%);
}

.nav-dropdown-menu {
  z-index: 50;
}

.nav-dropdown-btn:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.filter-btn {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 9999px;
  border: 1px solid #e5e7eb;
  background: #fff;
  color: #4b5563;
  transition: all 0.2s;
  cursor: pointer;
}
.filter-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.filter-btn-active {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-color: transparent;
  color: #fff;
}
.filter-btn-active:hover {
  color: #fff;
  opacity: 0.92;
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 9999px;
  border: 1px solid #4b5563;
  color: #d1d5db;
  transition: color 0.2s, border-color 0.2s, background-color 0.2s;
}
.social-icon:hover {
  color: #fff;
  border-color: #fff;
  background-color: rgba(255, 255, 255, 0.08);
}
.social-icon--light {
  border-color: rgba(124, 58, 237, 0.35);
  color: var(--primary);
}
.social-icon--light:hover {
  color: #fff;
  border-color: var(--primary);
  background-color: var(--primary);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-slide, .venue-img, .btn-primary { transition: none; }
}