/* ====================================================================
   THƯ VIỆN SỐ BẢO TỒN TRÒ CHƠI DÂN GIAN TÂY BẮC - DESIGN SYSTEM
   Modern Northwest Heritage Aesthetic (Indigo, Brocade Red, Warm Gold)
   ==================================================================== */

:root {
  --bg-dark: #0b1326;
  --bg-card: rgba(18, 28, 51, 0.75);
  --bg-card-hover: rgba(26, 40, 71, 0.9);
  --primary-red: #d34e36;
  --primary-red-hover: #b83d27;
  --indigo-blue: #1d3557;
  --warm-gold: #e4a848;
  --emerald-green: #2a9d8f;
  --text-main: #f8f9fa;
  --text-muted: #94a3b8;
  --border-glass: rgba(255, 255, 255, 0.12);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
}

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

body {
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(at 0% 0%, rgba(211, 78, 54, 0.15) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(29, 53, 87, 0.3) 0px, transparent 50%),
    radial-gradient(at 50% 100%, rgba(228, 168, 72, 0.1) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.6;
  min-height: 100vh;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary-red);
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 19, 38, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  padding: 1rem 0;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary-red), var(--warm-gold));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: bold;
  box-shadow: 0 4px 15px rgba(211, 78, 54, 0.4);
}

.logo-text h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(90deg, #fff, var(--warm-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text p {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.25s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-red), #b83d27);
  color: #fff;
  box-shadow: 0 4px 14px rgba(211, 78, 54, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(211, 78, 54, 0.5);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border-color: var(--border-glass);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
}

/* Hero Section */
.hero {
  padding: 4rem 0 3rem;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(228, 168, 72, 0.12);
  border: 1px solid rgba(228, 168, 72, 0.3);
  border-radius: 30px;
  color: var(--warm-gold);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero h2 {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.25rem;
  background: linear-gradient(180deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  max-width: 680px;
  margin: 0 auto 2.5rem;
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Stats Counter */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  max-width: 800px;
  margin: 0 auto 3rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(12px);
  padding: 1.25rem;
  border-radius: 16px;
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--warm-gold);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Search and Filter Section */
.controls-section {
  margin-bottom: 2.5rem;
}

.search-box {
  position: relative;
  max-width: 600px;
  margin: 0 auto 1.5rem;
}

.search-box input {
  width: 100%;
  padding: 1rem 1.25rem 1rem 3rem;
  background: rgba(18, 28, 51, 0.8);
  border: 1px solid var(--border-glass);
  border-radius: 14px;
  color: #fff;
  font-size: 1rem;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-red);
  box-shadow: 0 0 20px rgba(211, 78, 54, 0.25);
}

.search-icon {
  position: absolute;
  left: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
}

.pill {
  padding: 0.5rem 1.1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.pill:hover, .pill.active {
  background: var(--primary-red);
  color: #fff;
  border-color: var(--primary-red);
  box-shadow: 0 4px 12px rgba(211, 78, 54, 0.3);
}

/* Games Grid */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.75rem;
  margin-bottom: 4rem;
}

/* Game Card */
.game-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  overflow: hidden;
  backdrop-filter: blur(12px);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  box-shadow: var(--glass-shadow);
}

.game-card:hover {
  transform: translateY(-6px);
  background: var(--bg-card-hover);
  border-color: rgba(228, 168, 72, 0.4);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.card-image-wrapper {
  position: relative;
  width: 100%;
  height: 210px;
  overflow: hidden;
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.game-card:hover .card-image {
  transform: scale(1.06);
}

.card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.3rem 0.8rem;
  background: rgba(11, 19, 38, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-glass);
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--warm-gold);
}

.category-tag {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.3rem 0.8rem;
  background: var(--primary-red);
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
}

.card-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: #fff;
}

.card-description {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.location-info {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 20, 0.85);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: #111b33;
  border: 1px solid var(--border-glass);
  border-radius: 24px;
  width: 100%;
  max-width: 850px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  position: relative;
  transform: scale(0.95);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: background 0.2s;
}

.modal-close:hover {
  background: var(--primary-red);
}

.modal-header-img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.modal-body {
  padding: 2rem;
}

.modal-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
}

.badge-group {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

/* Tabs inside Detail Modal */
.tab-buttons {
  display: flex;
  border-bottom: 1px solid var(--border-glass);
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.tab-btn {
  padding: 0.75rem 0;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn.active {
  color: var(--warm-gold);
  border-bottom-color: var(--warm-gold);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

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

.section-block h4 {
  font-size: 1.1rem;
  color: var(--warm-gold);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-block p {
  color: #cbd5e1;
  font-size: 0.98rem;
  white-space: pre-line;
}

/* Media Players */
.video-container {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 14px;
  overflow: hidden;
  margin-top: 1rem;
  background: #000;
}

.video-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.audio-player-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  padding: 1.25rem;
  border-radius: 14px;
  margin-top: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Form Styles */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(18, 28, 51, 0.9);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  color: #fff;
  font-size: 0.95rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--warm-gold);
}

textarea.form-control {
  min-height: 110px;
  resize: vertical;
}

/* Footer */
footer {
  background: rgba(5, 10, 20, 0.95);
  border-top: 1px solid var(--border-glass);
  padding: 3rem 0 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h2 { font-size: 2.1rem; }
  .modal-body { padding: 1.25rem; }
  .modal-title-row { flex-direction: column; }
}

/* ====================================================================
   INTERACTIVE NORTHWEST MAP STYLES
   ==================================================================== */
.map-section {
  margin: 2rem 0 3.5rem;
}

.map-layout {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 2rem;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 24px;
  padding: 2rem;
  backdrop-filter: blur(16px);
  box-shadow: var(--glass-shadow);
}

@media (max-width: 920px) {
  .map-layout { grid-template-columns: 1fr; }
}

.svg-map-wrapper {
  position: relative;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #f4edd9;
  border-radius: 16px;
  padding: 1.25rem;
  border: 3px solid #c5b597;
  box-shadow: inset 0 0 20px rgba(0,0,0,0.15);
}

svg.northwest-map {
  width: 100%;
  height: auto;
  max-height: 480px;
  filter: drop-shadow(0 8px 16px rgba(0,0,0,0.3));
}

.province-path {
  stroke: #1a1a1a;
  stroke-width: 2.2;
  stroke-linejoin: round;
  stroke-linecap: round;
  cursor: pointer;
  transition: all 0.3s ease;
  opacity: 0.88;
}

.province-path.lai-chau { fill: #eaa58c; }
.province-path.lao-cai { fill: #7b78ac; }
.province-path.dien-bien { fill: #9ec885; }
.province-path.son-la { fill: #e7b86c; }

.province-path:hover,
.province-path.active {
  opacity: 1;
  stroke: #d32f2f;
  stroke-width: 4;
  filter: drop-shadow(0 0 20px rgba(211, 47, 47, 0.9));
}

.province-path.lai-chau.active { fill: #ff9d7b; }
.province-path.lao-cai.active { fill: #928ef5; }
.province-path.dien-bien.active { fill: #b1eb90; }
.province-path.son-la.active { fill: #ffd077; }

.province-label {
  font-size: 16px;
  font-weight: 800;
  fill: #111111;
  pointer-events: none;
  text-anchor: middle;
  letter-spacing: 0.5px;
  font-family: var(--font-family);
}

.province-path.active + g .province-label,
.province-group:hover .province-label {
  fill: #d32f2f;
  font-size: 18px;
}

.info-panel {
  padding: 0.5rem;
}

.province-badge {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  background: rgba(228, 168, 72, 0.15);
  border: 1px solid var(--warm-gold);
  border-radius: 20px;
  color: var(--warm-gold);
  font-size: 0.85rem;
  font-weight: 700;
}

.panel-header-badges {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.game-count-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.95rem;
  background: linear-gradient(135deg, #d34e36 0%, #e4a848 100%);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 20px;
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.3px;
  box-shadow: 0 4px 16px rgba(211, 78, 54, 0.5);
  transition: all 0.3s ease;
  animation: pulseBadge 2.5s infinite alternate;
}

@keyframes pulseBadge {
  0% {
    transform: scale(1);
    box-shadow: 0 4px 16px rgba(211, 78, 54, 0.5);
  }
  100% {
    transform: scale(1.05);
    box-shadow: 0 6px 22px rgba(228, 168, 72, 0.75);
  }
}

.info-panel h2 {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  color: #fff;
  margin-bottom: 0.5rem;
}

.info-panel p.ethnics {
  font-size: 1rem;
  color: var(--emerald-green);
  font-weight: 600;
  margin-bottom: 1rem;
}

.info-panel p.desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.games-list-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--warm-gold);
  margin-bottom: 0.75rem;
  font-weight: 700;
}

.game-item-card {
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  margin-bottom: 0.6rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.game-name {
  font-weight: 700;
  color: #fff;
  font-size: 0.95rem;
}

.game-tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  background: var(--primary-red);
  border-radius: 6px;
  color: #fff;
}

.province-buttons {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.p-btn {
  padding: 0.6rem 1.1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  color: var(--text-muted);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.25s;
}

.p-btn:hover, .p-btn.active {
  background: var(--primary-red);
  color: #fff;
  border-color: var(--primary-red);
  box-shadow: 0 4px 14px rgba(211, 78, 54, 0.4);
}