/* public/css/style.css - X-QLTV Design System */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap');

:root {
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Color Palette - Vibrant Indigo / Violet / Emerald */
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: rgba(79, 70, 229, 0.08);
  --primary-glow: rgba(79, 70, 229, 0.25);
  
  --secondary: #06b6d4;
  --accent: #8b5cf6;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  /* Surfaces & Backgrounds */
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-surface-subtle: #f1f5f9;
  --border-color: #e2e8f0;
  --border-focus: #818cf8;

  /* Typography */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;

  /* Shadows & Glass */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.4);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --sidebar-width: 260px;
  --header-height: 72px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg-body: #0b0f19;
  --bg-surface: #131b2e;
  --bg-surface-elevated: #1a233d;
  --bg-surface-subtle: #1e293b;
  --border-color: #243049;
  --border-focus: #6366f1;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
  --glass-bg: rgba(19, 27, 46, 0.85);
  --glass-border: rgba(255, 255, 255, 0.08);
  --primary-light: rgba(99, 102, 241, 0.15);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--primary-hover);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}
::-webkit-scrollbar-track {
  background: var(--bg-body);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* App Container Layout */
#app {
  display: flex;
  min-height: 100vh;
  position: relative;
}

/* Top Navigation Bar */
.top-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  z-index: 100;
  transition: var(--transition);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--primary);
  letter-spacing: -0.02em;
  cursor: pointer;
}

.brand-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.35rem;
  box-shadow: 0 4px 12px var(--primary-glow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-item {
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  background: transparent;
}

.nav-item:hover, .nav-item.active {
  color: var(--primary);
  background: var(--primary-light);
}

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

/* Sidebar Layout for Portal Mode */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-surface);
  border-right: 1px solid var(--border-color);
  position: fixed;
  top: var(--header-height);
  bottom: 0;
  left: 0;
  overflow-y: auto;
  padding: 1.25rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  z-index: 90;
  transition: var(--transition);
}

.sidebar-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 0.75rem 0.75rem 0.25rem;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
}

.sidebar-item i {
  font-size: 1.15rem;
  width: 22px;
  text-align: center;
}

.sidebar-item:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.sidebar-item.active {
  color: var(--text-inverse);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 4px 12px var(--primary-glow);
}

.sidebar-item .badge {
  margin-left: auto;
}

/* Main Content Area */
.main-wrapper {
  flex: 1;
  margin-top: var(--header-height);
  padding: 1.75rem;
  min-height: calc(100vh - var(--header-height));
  transition: var(--transition);
}

.with-sidebar {
  margin-left: var(--sidebar-width);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.badge-primary { background: var(--primary-light); color: var(--primary); }
.badge-success { background: rgba(16, 185, 129, 0.12); color: var(--success); }
.badge-warning { background: rgba(245, 158, 11, 0.12); color: var(--warning); }
.badge-danger { background: rgba(239, 68, 68, 0.12); color: var(--danger); }
.badge-info { background: rgba(59, 130, 246, 0.12); color: var(--info); }
.badge-neutral { background: var(--bg-surface-subtle); color: var(--text-secondary); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #6366f1);
  color: #fff;
  box-shadow: 0 2px 6px var(--primary-glow);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-hover), #4f46e5);
  box-shadow: 0 4px 12px var(--primary-glow);
  color: #fff;
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-surface-subtle);
  color: var(--text-primary);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background: var(--border-color);
}

.btn-success {
  background: var(--success);
  color: #fff;
}
.btn-success:hover {
  background: #059669;
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover {
  background: #dc2626;
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  border-radius: 6px;
}

.btn-lg {
  padding: 0.85rem 1.6rem;
  font-size: 1rem;
  border-radius: var(--radius-md);
}

.btn-icon {
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Cards & Panels */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-md);
}

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

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Metric / Stat Card */
.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}
.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.form-control {
  width: 100%;
  padding: 0.6rem 0.9rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  transition: var(--transition);
}
.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-light);
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.table th {
  background: var(--bg-surface-subtle);
  padding: 0.75rem 1rem;
  font-weight: 700;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  vertical-align: middle;
}

.table tbody tr:hover {
  background: var(--primary-light);
}

/* Book Grid & Cards */
.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
}

.book-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

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

.book-cover-wrap {
  width: 100%;
  height: 260px;
  background: var(--bg-surface-subtle);
  position: relative;
  overflow: hidden;
}

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

.book-card:hover .book-cover {
  transform: scale(1.05);
}

.book-type-badge {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  backdrop-filter: blur(8px);
}

.book-info {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.book-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 0.35rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.book-author {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.book-meta-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--border-color);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Modals & Dialogs */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

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

.modal-content {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 650px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: translateY(20px) scale(0.98);
  transition: var(--transition);
}

.modal-overlay.active .modal-content {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-surface-subtle);
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 2000;
}

.toast {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1.2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.88rem;
  font-weight: 600;
  animation: slideIn 0.3s ease forwards;
  min-width: 280px;
}

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

/* Responsive adjustments */
@media (max-width: 992px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .with-sidebar {
    margin-left: 0;
  }
}