/* Jigsaw Downloader Website - Modern Glassmorphism & Responsive Design System */

:root {
  --bg-dark: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.7);
  --bg-card-hover: rgba(51, 65, 85, 0.8);
  --border-color: rgba(255, 255, 255, 0.1);
  --border-color-active: rgba(99, 102, 241, 0.5);
  
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.35);
  --secondary: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;
  --accent-amber: #f59e0b;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --shadow-main: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px var(--primary-glow);
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.15) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
  overflow-x: hidden;
}

/* Header & Navigation */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 24px;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo {
  height: 42px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.5));
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 700;
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

.brand-tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
  opacity: 0.95;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-danger {
  background: rgba(244, 63, 94, 0.15);
  color: #fda4af;
  border-color: rgba(244, 63, 94, 0.3);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(244, 63, 94, 0.25);
  border-color: rgba(244, 63, 94, 0.5);
  color: white;
}

.btn-emerald {
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
  border-color: rgba(16, 185, 129, 0.3);
}

.btn-emerald:hover:not(:disabled) {
  background: rgba(16, 185, 129, 0.25);
  border-color: rgba(16, 185, 129, 0.5);
  color: white;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Layout Main Content */
.main-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
  width: 100%;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Search Bar Container */
.search-section {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-main);
}

.search-form {
  display: flex;
  gap: 12px;
  width: 100%;
}

.provider-toggle {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  align-items: center;
}

.provider-toggle .provider-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-right: 2px;
}

.provider-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-fast);
}

.provider-btn:hover {
  color: var(--text-main);
  border-color: var(--border-color-active);
}

.provider-btn.active {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-color: transparent;
  box-shadow: 0 0 12px var(--primary-glow);
}


.input-group {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 16px;
  color: var(--text-muted);
  width: 20px;
  height: 20px;
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 14px 44px 14px 48px;
  font-size: 1rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  outline: none;
  transition: var(--transition-fast);
}

.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
  background: rgba(15, 23, 42, 0.8);
}

.clear-search-btn {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
}

.clear-search-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.1);
}

.search-input:not(:placeholder-shown) ~ .clear-search-btn {
  display: flex;
}

/* Controls Bar above results */
.controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 16px 20px;
  border-radius: var(--radius-lg);
}

.results-stats {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.stat-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.stat-badge strong {
  color: var(--text-main);
}

.stat-badge.hidden-badge {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.3);
  color: #fcd34d;
}

.bulk-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* Grid Layout */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  width: 100%;
}

.grid-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-fast);
  cursor: pointer;
  user-select: none;
}

.grid-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-color-active);
  box-shadow: 0 12px 24px -6px rgba(0, 0, 0, 0.6);
}

.grid-card.selected {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary), 0 8px 20px rgba(99, 102, 241, 0.3);
}

.card-img-wrapper {
  position: relative;
  width: 100%;
  height: 180px;
  background: rgba(0, 0, 0, 0.3);
  overflow: hidden;
}

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

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

.checkbox-overlay {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 10;
}

.custom-checkbox {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: rgba(15, 23, 42, 0.8);
  border: 2px solid var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  cursor: pointer;
}

.grid-card.selected .custom-checkbox {
  background: var(--primary);
  border-color: var(--primary);
}

.custom-checkbox svg {
  width: 16px;
  height: 16px;
  color: white;
  opacity: 0;
  transform: scale(0.5);
  transition: var(--transition-fast);
}

.grid-card.selected .custom-checkbox svg {
  opacity: 1;
  transform: scale(1);
}

.card-content {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: rgba(15, 23, 42, 0.4);
  flex: 1;
}

.card-tags {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: auto;
}

.card-id {
  font-family: monospace;
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Pagination Section */
.pagination-container {
  display: flex;
  justify-content: center;
  padding: 16px 0 32px;
}

.btn-fetch-more {
  padding: 12px 32px;
  font-size: 1rem;
  box-shadow: var(--shadow-glow);
}

/* Collections Drawer / Panel */
.collections-panel {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-main);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.panel-title {
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.collections-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.collection-card {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--transition-fast);
}

.collection-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

.collection-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.collection-name {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-main);
}

.collection-date {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.collection-thumbnails {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 0;
  scrollbar-width: thin;
}

.collection-thumb {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  flex-shrink: 0;
}

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.empty-state svg {
  width: 48px;
  height: 48px;
  color: var(--text-dim);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: rgba(30, 41, 59, 0.95);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  color: var(--text-main);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 360px;
}

.toast-success {
  border-left: 4px solid var(--accent-emerald);
}

.toast-info {
  border-left: 4px solid var(--primary);
}

.toast-warning {
  border-left: 4px solid var(--accent-amber);
}

.toast-danger {
  border-left: 4px solid var(--accent-rose);
}

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

/* Hidden elements */
.hidden {
  display: none !important;
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease-out;
}

.modal-content {
  background: #1e293b;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-width: 500px;
  width: 100%;
  box-shadow: var(--shadow-main);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Mobile responsiveness adjustments */
@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    align-items: stretch;
  }
  
  .top-actions {
    justify-content: space-between;
    width: 100%;
  }

  .search-form {
    flex-direction: column;
  }

  .controls-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .bulk-actions {
    justify-content: space-between;
  }

  .results-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
  }

  .card-img-wrapper {
    height: 130px;
  }
}