/* =============================================
   GPH2026 — UI Components
   ============================================= */

/* ============ Navbar ============ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-navbar);
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 0 var(--space-lg);
  height: 70px;
  display: flex;
  align-items: center;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(10, 14, 26, 0.95);
  box-shadow: var(--shadow-md);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: 0.7rem;
  color: var(--neon-cyan);
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
  text-decoration: none;
}

.navbar-brand:hover {
  color: var(--neon-cyan);
}

.navbar-brand .brand-icon {
  font-size: 1.5rem;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  list-style: none;
}

.navbar-links a {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
  position: relative;
}

.navbar-links a:hover,
.navbar-links a.active {
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.08);
}

.navbar-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

/* Mobile hamburger */
.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.navbar-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--neon-cyan);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

@media (max-width: 768px) {
  .navbar-toggle { display: flex; }

  .navbar-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-xs);
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition-normal);
    pointer-events: none;
  }

  .navbar-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .navbar-links a {
    width: 100%;
    padding: var(--space-md);
  }
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::before {
  opacity: 1;
}

.btn-primary {
  background: var(--gradient-button);
  color: #0a0e1a;
  font-weight: 700;
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.4), 0 8px 25px rgba(0, 0, 0, 0.3);
  color: #0a0e1a;
}

.btn-secondary {
  background: transparent;
  color: var(--neon-cyan);
  border: 1px solid var(--neon-cyan);
}

.btn-secondary:hover {
  background: rgba(0, 240, 255, 0.1);
  box-shadow: var(--shadow-glow);
  color: var(--neon-cyan);
}

.btn-danger {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: white;
}

.btn-danger:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
  background: rgba(255,255,255,0.05);
}

.btn-sm {
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

.btn-icon {
  padding: 0.5rem;
  border-radius: var(--radius-md);
}

/* ============ Cards ============ */
.card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

.card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid var(--border-color);
}

.card-body {
  padding: var(--space-lg);
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-heading);
}

.card-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.card-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Stat cards */
.stat-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

.stat-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.stat-card .stat-icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.stat-card .stat-value {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1;
}

.stat-card .stat-label {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: var(--space-xs);
}

/* ============ Forms ============ */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

.form-error {
  font-size: 0.8rem;
  color: #ef4444;
  margin-top: var(--space-xs);
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--neon-cyan);
  flex-shrink: 0;
  margin-top: 3px;
}

.form-checkbox label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  cursor: pointer;
  line-height: 1.4;
}

/* ============ Badge ============ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-cyan    { background: rgba(0, 240, 255, 0.15); color: var(--neon-cyan); }
.badge-purple  { background: rgba(168, 85, 247, 0.15); color: var(--neon-purple); }
.badge-green   { background: rgba(34, 197, 94, 0.15); color: #22c55e; }
.badge-red     { background: rgba(239, 68, 68, 0.15); color: #ef4444; }
.badge-orange  { background: rgba(249, 115, 22, 0.15); color: var(--neon-orange); }
.badge-yellow  { background: rgba(234, 179, 8, 0.15); color: var(--neon-yellow); }

/* ============ Alert / Flash ============ */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid;
  margin-bottom: var(--space-lg);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.alert-success {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.3);
  color: #22c55e;
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

.alert-warning {
  background: rgba(234, 179, 8, 0.1);
  border-color: rgba(234, 179, 8, 0.3);
  color: #eab308;
}

.alert-info {
  background: rgba(0, 240, 255, 0.1);
  border-color: rgba(0, 240, 255, 0.3);
  color: var(--neon-cyan);
}

/* ============ Table ============ */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th {
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.table td {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-primary);
}

.table tr:last-child td {
  border-bottom: none;
}

.table tr:hover td {
  background: rgba(0, 240, 255, 0.03);
}

/* ============ Pagination ============ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  margin-top: var(--space-xl);
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 var(--space-sm);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.pagination a:hover {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.08);
}

.pagination .active {
  background: var(--gradient-primary);
  color: var(--bg-primary);
  border-color: transparent;
  font-weight: 700;
}

/* ============ Modal ============ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

/* Native <dialog> element – centre on screen with dark backdrop */
dialog.modal {
  position: fixed;
  inset: 0;
  margin: auto;
  padding: 0;
  border: none;
  border-radius: var(--radius-xl);
  background: var(--bg-secondary);
  box-shadow: 0 25px 60px rgba(0,0,0,0.6);
  max-width: 560px;
  width: calc(100% - 2rem);
  max-height: 90vh;
  overflow-y: auto;
  z-index: 1000;
}
dialog.modal::backdrop {
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
}
.modal-box {
  padding: 2rem;
}
.modal-box h3 {
  margin-top: 0;
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
  color: var(--text-primary);
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}
.modal-box .form-group {
  margin-bottom: 1.25rem;
}
.modal-action {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.modal-header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  margin-bottom: 0;
}

.modal-body {
  padding: var(--space-lg);
}

.modal-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: var(--space-sm);
  justify-content: flex-end;
}

/* ============ Progress Bar ============ */
.progress {
  width: 100%;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  transition: width var(--transition-slow);
  position: relative;
}

.progress-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  animation: shimmer 2s infinite;
}

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

/* ============ Language Switcher ============ */
.lang-switcher {
  display: flex;
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.lang-switcher a {
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.lang-switcher a:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.lang-switcher a.active {
  background: var(--gradient-primary);
  color: var(--bg-primary);
}

/* ============ Hero Section ============ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--gradient-hero);
  overflow: hidden;
  padding: 80px var(--space-lg) var(--space-2xl);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.5rem 1.25rem;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: var(--radius-full);
  color: var(--neon-cyan);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: var(--space-xl);
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 2rem;
  line-height: 1.8;
  margin-bottom: var(--space-lg);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .hero h1 { font-size: 1.1rem; line-height: 2; }
  .hero-desc { font-size: 1rem; }
}

/* ============ Countdown ============ */
.countdown {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin: var(--space-2xl) 0;
}

.countdown-item {
  text-align: center;
  padding: var(--space-lg);
  min-width: 100px;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.countdown-value {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--neon-cyan);
  text-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
  line-height: 1;
}

.countdown-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: var(--space-sm);
}

@media (max-width: 480px) {
  .countdown-item { min-width: 70px; padding: var(--space-md); }
  .countdown-value { font-size: 1.75rem; }
}

/* ============ Carousel ============ */
.carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xl);
}

.carousel-track {
  display: flex;
  transition: transform 0.5s ease;
}

.carousel-slide {
  min-width: 100%;
  position: relative;
}

.carousel-slide img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.carousel-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-xl);
  background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
}

.carousel-overlay h3 {
  font-size: 1.25rem;
  color: white;
  margin-bottom: var(--space-sm);
}

.carousel-overlay p {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--border-color);
  color: white;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition-fast);
  z-index: 5;
}

.carousel-btn:hover {
  background: rgba(0, 240, 255, 0.2);
  border-color: var(--neon-cyan);
}

.carousel-btn.prev { left: var(--space-md); }
.carousel-btn.next { right: var(--space-md); }

.carousel-dots {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-sm);
  z-index: 5;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.carousel-dot.active {
  background: var(--neon-cyan);
  width: 24px;
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
}

/* ============ Timeline ============ */
.timeline {
  position: relative;
  padding: var(--space-lg) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--neon-cyan), var(--neon-purple), transparent);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  margin-bottom: var(--space-2xl);
  position: relative;
}

.timeline-item:nth-child(odd) {
  flex-direction: row;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-content {
  width: 45%;
  padding: var(--space-lg);
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

.timeline-content:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.timeline-dot {
  position: absolute;
  left: 50%;
  top: var(--space-lg);
  width: 40px;
  height: 40px;
  background: var(--bg-secondary);
  border: 2px solid var(--neon-cyan);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateX(-50%);
  font-size: 1.1rem;
  z-index: 2;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
}

.timeline-dot.passed {
  border-color: var(--neon-green);
  box-shadow: 0 0 15px rgba(34, 211, 238, 0.3);
}

.timeline-dot.active {
  border-color: var(--neon-orange);
  box-shadow: 0 0 15px rgba(249, 115, 22, 0.3);
  animation: pulse-glow 2s infinite;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--neon-cyan);
  margin-bottom: var(--space-sm);
}

.timeline-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

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

@media (max-width: 768px) {
  .timeline::before { left: 20px; }

  .timeline-item,
  .timeline-item:nth-child(even) {
    flex-direction: row;
    padding-left: 50px;
  }

  .timeline-content { width: 100%; }

  .timeline-dot {
    left: 20px;
  }
}

/* ============ Gallery Grid ============ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
  background: var(--bg-tertiary);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-normal);
  display: flex;
  align-items: flex-end;
  padding: var(--space-md);
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-item-overlay span {
  color: white;
  font-size: 0.85rem;
}

/* Album filter tabs */
.gallery-filters {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--space-xl);
}

.gallery-filters button {
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.gallery-filters button:hover,
.gallery-filters button.active {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.08);
}

/* ============ Lightbox ============ */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

.lightbox.open { display: flex; }

.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.lightbox-close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  background: none;
  border: none;
  color: white;
  font-size: 2rem;
  cursor: pointer;
}

/* ============ Footer ============ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-xl);
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  color: var(--neon-cyan);
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
  margin-bottom: var(--space-md);
}

.footer-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: var(--space-md);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

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

.footer-links a:hover {
  color: var(--neon-cyan);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: var(--space-lg);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
}

/* ============ Admin Layout ============ */
.admin-layout {
  display: flex;
  min-height: 100vh;
  padding-top: 70px;
}

.admin-sidebar {
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: var(--space-lg);
  position: fixed;
  top: 70px;
  bottom: 0;
  overflow-y: auto;
}

.admin-sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  font-size: 0.9rem;
  margin-bottom: var(--space-xs);
  text-decoration: none;
}

.admin-sidebar-link:hover,
.admin-sidebar-link.active {
  background: rgba(0, 240, 255, 0.08);
  color: var(--neon-cyan);
}

.admin-content {
  margin-left: 260px;
  flex: 1;
  padding: var(--space-xl);
  min-height: calc(100vh - 70px);
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.admin-header h1 {
  font-size: 1.5rem;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .admin-sidebar {
    display: none;
  }
  .admin-content {
    margin-left: 0;
  }
}

/* ============ Auth Pages ============ */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  background: var(--gradient-hero);
}

.auth-card {
  width: 100%;
  max-width: 480px;
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-neon);
}

.auth-logo {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.auth-logo .brand-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  display: block;
}

.auth-logo h2 {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-logo p {
  color: var(--text-muted);
  margin-top: var(--space-sm);
  font-size: 0.9rem;
}

/* ============ Registration Steps ============ */
.reg-steps {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  position: relative;
}

.reg-steps::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--border-color);
}

.reg-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
}

.reg-step-number {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: all var(--transition-normal);
}

.reg-step.active .reg-step-number {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
}

.reg-step.completed .reg-step-number {
  background: var(--gradient-primary);
  border-color: transparent;
  color: var(--bg-primary);
}

.reg-step-label {
  margin-top: var(--space-sm);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.reg-step.active .reg-step-label {
  color: var(--neon-cyan);
}

.reg-panel {
  display: none;
}

.reg-panel.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Background Music Toggle (Navbar) */
#bgm-toggle:hover {
    transform: scale(1.2);
}
#bgm-toggle.muted {
    opacity: 0.5;
}