/**
 * Scentence Lab - Admin Panel Design System
 * Matches Main Website: Deep Navy (#0c1427 / #14213d), Cyan Glow (#29abe2), Silver (#e2e8f0)
 * Fonts: Sora (Headings/Brand) & Manrope (Body/UI)
 */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=Sora:wght@500;600;700&display=swap');

:root {
  --bg-main: #0c1427;
  --bg-sidebar: #070d1a;
  --bg-card: #14213d;
  --bg-card-hover: #192a4e;
  --bg-input: #0f182e;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(41, 171, 226, 0.55);
  
  --primary: #29abe2;
  --primary-hover: #0284c7;
  --primary-light: rgba(41, 171, 226, 0.12);
  --primary-glow: 0 4px 20px rgba(41, 171, 226, 0.35);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --text-silver: #e2e8f0;
  
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.15);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.15);
  --info: #38bdf8;
  --info-bg: rgba(56, 189, 248, 0.15);
  
  --font-display: 'Sora', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
}

/* App Container */
.app-container {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 270px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 40;
  transition: var(--transition);
}

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

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  width: 100%;
}

.brand-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 8px rgba(41, 171, 226, 0.25));
  transition: transform 0.25s ease;
}

.brand-link:hover .brand-logo {
  transform: scale(1.06);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  line-height: 1.2;
}

.text-silver {
  color: var(--text-silver);
}

.text-primary {
  color: var(--primary);
}

.brand-tag {
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-left: 0.35rem;
  font-weight: 500;
}

.brand-sub {
  font-size: 0.7rem;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-top: 0.15rem;
}

.sidebar-nav {
  padding: 1.25rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-link:hover {
  background: var(--bg-card);
  color: var(--text-main);
  transform: translateX(3px);
}

.nav-link.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  border-left: 3px solid var(--primary);
}

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

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-badge {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.admin-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(41, 171, 226, 0.2), #14213d);
  border: 1px solid rgba(41, 171, 226, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--primary);
}

.admin-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}

/* Main Content Area */
.main-wrapper {
  flex: 1;
  margin-left: 270px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Top Navigation Bar */
.topbar {
  height: 64px;
  border-bottom: 1px solid var(--border-color);
  background: rgba(12, 20, 39, 0.85);
  backdrop-filter: blur(14px);
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
}

.topbar-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Content Container */
.content {
  padding: 2rem;
  flex: 1;
}

/* Metrics Cards Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.stat-card:hover {
  border-color: rgba(41, 171, 226, 0.4);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -8px rgba(0, 0, 0, 0.6), 0 0 15px rgba(41, 171, 226, 0.15);
}

.stat-info h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-main);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(41, 171, 226, 0.2);
}

/* Card Component */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 1.75rem;
}

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

.card-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-body {
  padding: 1.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
  font-family: inherit;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: #0c1427;
  font-weight: 600;
}

.btn-primary:hover {
  background: var(--primary-hover);
  color: #ffffff;
  box-shadow: 0 4px 18px rgba(41, 171, 226, 0.45);
}

.btn-outline {
  background: transparent;
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-outline:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.3);
  color: #f87171;
}

.btn-danger:hover {
  background: #ef4444;
  color: #ffffff;
}

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.8rem;
}

/* Tables */
.table-responsive {
  overflow-x: auto;
}

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

.table th {
  padding: 0.85rem 1rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.15);
  font-weight: 600;
}

.table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.875rem;
}

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

.table tbody tr:hover {
  background: var(--bg-card-hover);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
}

.badge-gold, .badge-cyan, .badge-primary {
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(41, 171, 226, 0.3);
}

.badge-success {
  background: var(--success-bg);
  color: var(--success);
}

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

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.form-label span.required {
  color: var(--danger);
}

.form-help {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 0.3rem;
}

.form-control {
  width: 100%;
  padding: 0.7rem 0.9rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 0.9rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(41, 171, 226, 0.18);
}

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

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

.gallery-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}

.gallery-card:hover {
  border-color: rgba(41, 171, 226, 0.4);
  transform: translateY(-3px);
  box-shadow: 0 14px 30px -8px rgba(0, 0, 0, 0.6), 0 0 15px rgba(41, 171, 226, 0.12);
}

.gallery-thumb-wrap {
  width: 100%;
  height: 200px;
  background: #000;
  overflow: hidden;
  position: relative;
}

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

.gallery-card:hover .gallery-thumb {
  transform: scale(1.04);
}

.gallery-card-body {
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.75rem;
}

.gallery-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gallery-meta {
  font-size: 0.75rem;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
}

/* Copy URL Component */
.copy-url-box {
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.5rem;
  gap: 0.5rem;
}

.copy-url-input {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-family: monospace;
  width: 100%;
  outline: none;
  cursor: text;
}

.copy-btn {
  background: var(--primary);
  color: #0c1427;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap;
  transition: var(--transition);
}

.copy-btn:hover {
  background: var(--primary-hover);
  color: #ffffff;
  box-shadow: 0 2px 10px rgba(41, 171, 226, 0.4);
}

.copy-btn.copied {
  background: var(--success) !important;
  color: #fff !important;
}

/* Upload Dropzone */
.dropzone {
  border: 2px dashed rgba(41, 171, 226, 0.3);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: rgba(41, 171, 226, 0.03);
  cursor: pointer;
  transition: var(--transition);
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary);
  background: rgba(41, 171, 226, 0.08);
}

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

.dropzone-text h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.dropzone-text p {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* Toast Container */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  background: #14213d;
  color: #f8fafc;
  border: 1px solid var(--border-color);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  animation: slideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  min-width: 260px;
}

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

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

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

/* Flash Alert */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
}

.alert-success {
  background: var(--success-bg);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #6ee7b7;
}

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

.alert-warning {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #fcd34d;
}

/* Preview Box with Close Button */
.preview-box {
  position: relative;
  display: inline-block;
  margin-top: 0.5rem;
}

.preview-close-btn {
  position: absolute;
  top: -10px;
  right: -10px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #ef4444;
  color: #ffffff;
  border: 2px solid var(--bg-card, #14213d);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  line-height: 1;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
  transition: var(--transition);
  z-index: 10;
}

.preview-close-btn:hover {
  background: #dc2626;
  transform: scale(1.15);
}

/* Mobile Toggle & Backdrop */
.topbar-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
}

.sidebar-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
  padding: 0;
}

.sidebar-toggle:hover {
  background: var(--bg-card-hover);
  color: var(--primary);
  border-color: rgba(41, 171, 226, 0.4);
}

.sidebar-close {
  display: none;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
  margin-left: auto;
  padding: 0;
}

.sidebar-close:hover {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.4);
}

/* Sidebar Backdrop */
.sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 8, 18, 0.75);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 45;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.sidebar-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

body.sidebar-open {
  overflow: hidden;
}

/* Responsive Breakpoints */
@media (max-width: 768px) {
  .sidebar-toggle {
    display: inline-flex;
  }

  .sidebar-close {
    display: inline-flex;
  }

  .sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: 280px;
    max-width: 85vw;
    z-index: 50;
    transform: translateX(-100%);
    box-shadow: none;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 10px 0 35px rgba(0, 0, 0, 0.8), 0 0 25px rgba(41, 171, 226, 0.15);
  }

  .main-wrapper {
    margin-left: 0;
    width: 100%;
    min-width: 0;
  }

  .topbar {
    padding: 0 1rem;
    height: 60px;
  }

  .topbar-title {
    font-size: 1.05rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .content {
    padding: 1.15rem 0.85rem;
  }

  /* Form & Grid Layouts on Tablets/Mobiles */
  div[style*="grid-template-columns: 1fr 1fr"],
  div[style*="grid-template-columns:1fr 1fr"] {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
    margin-bottom: 1.25rem;
  }

  .card-header {
    padding: 1rem;
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .card-body {
    padding: 1.15rem 1rem;
  }

  /* Scrollable Table */
  .table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .table {
    min-width: 600px;
  }

  /* Gallery Grid */
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.15rem;
  }

  /* Toast Notifications on Mobile */
  #toast-container {
    left: 16px;
    right: 16px;
    bottom: 16px;
    width: auto;
  }

  .toast {
    min-width: auto;
    width: 100%;
  }

  /* Dropzone on Mobile */
  .dropzone {
    padding: 1.75rem 1rem;
  }
}

@media (max-width: 540px) {
  .topbar {
    padding: 0 0.85rem;
  }

  .topbar-title {
    font-size: 0.95rem;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .gallery-thumb-wrap {
    height: 220px;
  }

  .card-header {
    flex-direction: column;
    align-items: stretch;
  }

  .card-header form {
    width: 100%;
  }

  .card-header form input {
    flex: 1;
    width: 100% !important;
  }

  .copy-url-box {
    flex-direction: column;
    align-items: stretch;
    gap: 0.4rem;
  }

  .copy-btn {
    width: 100%;
    justify-content: center;
    padding: 0.5rem;
  }
}