/* Standard Design System & Typography */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
  --bg-dark: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-primary: #6366f1;
  --accent-hover: #4f46e5;
  --accent-glow: rgba(99, 102, 241, 0.35);
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --border-color: rgba(255, 255, 255, 0.1);
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(255, 255, 255, 0.08);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  background-image: 
    radial-gradient(at 10% 10%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
    radial-gradient(at 90% 90%, rgba(16, 185, 129, 0.1) 0px, transparent 50%);
  background-attachment: fixed;
}

/* Header & Navigation Bar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 2rem;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent-primary), #a855f7);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 0 15px var(--accent-glow);
}

.nav-links {
  display: flex;
  gap: 0.75rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.nav-link.active {
  background: var(--accent-primary);
  box-shadow: 0 4px 14px var(--accent-glow);
}

/* Layout Container */
.container {
  max-width: 1280px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.page-header {
  margin-bottom: 2rem;
}

.page-title {
  font-size: 1.85rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-desc {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Glassmorphism Cards */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.form-input {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.form-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.drop-zone {
  border: 2px dashed rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  background: rgba(15, 23, 42, 0.4);
  transition: var(--transition);
  position: relative;
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.08);
}

.drop-zone-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  color: var(--accent-primary);
}

.drop-zone-title {
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}

.drop-zone-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.file-input-hidden {
  display: none;
}

.file-selected-info {
  display: none;
  margin-top: 1rem;
  padding: 0.75rem;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-sm);
  color: #6ee7b7;
  font-size: 0.9rem;
  font-weight: 500;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: var(--danger-color);
  color: white;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  border-radius: 6px;
}

/* Progress Bar */
.progress-container {
  display: none;
  margin-top: 1rem;
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-primary), var(--success-color));
  transition: width 0.2s ease;
}

.progress-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.4rem;
  display: flex;
  justify-content: space-between;
}

/* Data Table Styles */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.925rem;
}

.custom-table th {
  background: rgba(15, 23, 42, 0.8);
  padding: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.custom-table td {
  padding: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  vertical-align: middle;
}

.custom-table tbody tr {
  transition: var(--transition);
}

.custom-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

/* Media Previews & Badges */
.media-preview-box {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
}

.media-preview-box img, .media-preview-box video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.6rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-image {
  background: rgba(16, 185, 129, 0.2);
  color: #6ee7b7;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-video {
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

/* User Download Gallery Layout */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.search-box {
  position: relative;
  flex: 1;
  max-width: 400px;
}

.search-box input {
  padding-left: 2.5rem;
}

.search-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
}

.filter-tabs {
  display: flex;
  gap: 0.5rem;
  background: rgba(15, 23, 42, 0.6);
  padding: 0.3rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.filter-btn {
  padding: 0.4rem 1rem;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  border: none;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn.active {
  background: var(--accent-primary);
  color: white;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

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

.gallery-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.4);
  border-color: rgba(99, 102, 241, 0.3);
}

.gallery-media {
  height: 180px;
  background: #000;
  position: relative;
  overflow: hidden;
}

.gallery-media img, .gallery-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.gallery-card:hover .play-overlay {
  opacity: 1;
}

.play-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
  box-shadow: 0 0 15px var(--accent-glow);
}

.gallery-content {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.gallery-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gallery-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.gallery-actions {
  margin-top: auto;
  display: flex;
  gap: 0.5rem;
}

.gallery-actions .btn {
  flex: 1;
}

/* Lightbox Modal */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-content {
  max-width: 900px;
  width: 100%;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.modal-header {
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}

.modal-body {
  max-height: 75vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
}

.modal-body img, .modal-body video {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 25px rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  animation: slideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast-success { border-left: 4px solid var(--success-color); }
.toast-error { border-left: 4px solid var(--danger-color); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-secondary);
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

@media (max-width: 768px) {
  .navbar {
    padding: 1rem;
    flex-direction: column;
    gap: 1rem;
  }
  .container {
    padding: 0 1rem;
  }
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .search-box {
    max-width: 100%;
  }
}