/* ========================================
   Dive Colorado — Hike & Swim Guide
   Built by Tank on the Nebuchadnezzar
   ======================================== */

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

:root {
  --bg: #0a0e1a;
  --bg-card: #121828;
  --bg-card-hover: #1a2138;
  --bg-overlay: rgba(10, 14, 26, 0.85);
  --text: #e8edf5;
  --text-muted: #8892a8;
  --text-dim: #5a6478;
  --accent: #06b6d4;
  --accent-glow: rgba(6, 182, 212, 0.4);
  --accent-warm: #f59e0b;
  --green: #22c55e;
  --blue: #3b82f6;
  --purple: #8b5cf6;
  --red: #ef4444;
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(6, 182, 212, 0.3);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.5);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/BEAR_LAKE%2C_ROCKY_MOUNTAIN_NATIONAL_PARK%2C_COLORADO.jpg/1920px-BEAR_LAKE%2C_ROCKY_MOUNTAIN_NATIONAL_PARK%2C_COLORADO.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.4) saturate(1.2);
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, 
    rgba(10, 14, 26, 0.3) 0%,
    rgba(10, 14, 26, 0.5) 50%,
    rgba(10, 14, 26, 1) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 2rem;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(6, 182, 212, 0.15);
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.5px;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(10px);
}

.hero h1 {
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

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

.hero-stat-num {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
}

.hero-stat-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

/* ---- Filter Bar ---- */
.filter-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-overlay);
  backdrop-filter: blur(20px);
  border-bottom: var(--border);
  padding: 1rem 0;
}

.filter-bar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 16px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.filter-btn:hover {
  border-color: var(--border-hover);
  color: var(--text);
}

.filter-btn.active {
  background: var(--accent);
  color: #0a0e1a;
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.sort-select {
  margin-left: auto;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
}

/* ---- Main Content ---- */
.main-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

/* ---- Location Cards ---- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.location-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.location-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.location-card:hover .card-image img {
  transform: scale(1.05);
}

.card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(18, 24, 40, 0.8) 100%);
}

.card-type-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  backdrop-filter: blur(10px);
}

.card-featured-star {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  font-size: 1.1rem;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
}

.card-body {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.card-area {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}

.card-stats {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.card-stat {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.card-stat svg {
  width: 14px;
  height: 14px;
  opacity: 0.7;
}

.card-description {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 1rem;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.card-swim-quality {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 500;
}

.card-swim-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.card-arrow {
  color: var(--text-dim);
  transition: var(--transition);
}

.location-card:hover .card-arrow {
  color: var(--accent);
  transform: translateX(4px);
}

/* ---- Detail Modal ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  width: 90%;
  max-width: 700px;
  max-height: 90vh;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  z-index: 201;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal.active {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

.modal-image {
  height: 250px;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.modal-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(18, 24, 40, 1) 100%);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 10;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  border: none;
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.8);
  transform: rotate(90deg);
}

.modal-content {
  overflow-y: auto;
  padding: 1.5rem 2rem 2rem;
}

.modal-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
}

.modal-area {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.modal-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.modal-tag {
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 500;
}

.modal-section {
  margin-bottom: 1.5rem;
}

.modal-section h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}

.modal-section p {
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.6;
}

.modal-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.modal-info-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
}

.modal-info-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  margin-bottom: 2px;
}

.modal-info-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}

.modal-tips {
  list-style: none;
}

.modal-tips li {
  padding: 6px 0 6px 24px;
  position: relative;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.modal-tips li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.modal-facilities {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.modal-facility {
  padding: 4px 10px;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: var(--accent);
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.modal-btn {
  flex: 1;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.modal-btn-primary {
  background: var(--accent);
  color: #0a0e1a;
}

.modal-btn-primary:hover {
  box-shadow: 0 0 24px var(--accent-glow);
}

.modal-btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--text);
}

.modal-btn-secondary:hover {
  border-color: var(--border-hover);
}

/* ---- Footer ---- */
.footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-dim);
  font-size: 0.82rem;
  border-top: var(--border);
}

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

/* ---- No Results ---- */
.no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
}

/* ---- Responsive ---- */
@media (max-width: 640px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
  
  .filter-bar-inner {
    padding: 0 1rem;
  }
  
  .sort-select {
    margin-left: 0;
    width: 100%;
  }
  
  .main-content {
    padding: 2rem 1rem 3rem;
  }
  
  .modal {
    width: 95%;
    max-height: 92vh;
  }
  
  .modal-content {
    padding: 1.25rem;
  }
  
  .hero-stats {
    gap: 1rem;
  }
}