/* ============================================================
   DAFA Glass — Design System
   Premium dark-mode glassmorphism CSS foundation
   ============================================================ */

/* ----- Custom Properties ----- */
:root {
  /* Backgrounds */
  --bg-primary: #0f0f23;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #16213e;
  --bg-input: #1e293b;

  /* Accents */
  --accent-teal: #00d4aa;
  --accent-cyan: #06b6d4;
  --accent-purple: #6366f1;
  --accent-violet: #8b5cf6;
  --amber: #f59e0b;
  --red: #ef4444;
  --green: #22c55e;

  /* Text */
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Borders & Glass */
  --border-color: rgba(255, 255, 255, 0.08);
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-bg-strong: rgba(255, 255, 255, 0.08);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow-teal: 0 0 20px rgba(0, 212, 170, 0.15);
  --shadow-glow-purple: 0 0 20px rgba(99, 102, 241, 0.15);

  /* Layout */
  --sidebar-width: 260px;
  --header-height: 64px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ----- Global Reset Tweaks ----- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ----- Custom Scrollbar ----- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--text-muted) var(--bg-tertiary);
}

/* ============================================================
   GLASSMORPHISM CARDS
   ============================================================ */
.glass-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: 24px;
  transition: all var(--transition-base);
}

.glass-card-hover {
  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: 24px;
  transition: all var(--transition-base);
  cursor: pointer;
}

.glass-card-hover:hover {
  transform: scale(1.02);
  border-color: rgba(0, 212, 170, 0.25);
  box-shadow: var(--shadow-glow-teal);
  background: var(--glass-bg-strong);
}

.glass-card-strong {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

/* ============================================================
   GRADIENT TEXT
   ============================================================ */
.gradient-text {
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.gradient-text-purple {
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-violet));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.gradient-text-warm {
  background: linear-gradient(135deg, var(--amber), #f97316);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: linear-gradient(180deg, rgba(15, 15, 35, 0.95), rgba(26, 26, 46, 0.98));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--border-color);
  z-index: 40;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base);
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-brand {
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-brand-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.sidebar-brand-text h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.2;
  margin: 0;
}

.sidebar-brand-text p {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin: 2px 0 0 0;
}

.sidebar-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
  margin: 0 16px;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-base);
  border-left: 3px solid transparent;
  position: relative;
}

.sidebar-link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity var(--transition-base);
}

.sidebar-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.sidebar-link:hover svg {
  opacity: 1;
}

.sidebar-link.active {
  color: var(--accent-teal);
  background: rgba(0, 212, 170, 0.08);
  border-left-color: var(--accent-teal);
}

.sidebar-link.active svg {
  opacity: 1;
  color: var(--accent-teal);
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
}

.sidebar-footer p {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

/* ============================================================
   MAIN CONTENT AREA
   ============================================================ */
.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left var(--transition-base);
}

.top-header {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  background: rgba(15, 15, 35, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.top-header h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

.content-wrapper {
  padding: 28px 32px;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  line-height: 1.5;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-cyan));
  color: #0f0f23;
}

.btn-primary:hover {
  box-shadow: 0 0 24px rgba(0, 212, 170, 0.3);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: var(--glass-bg-strong);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--red);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.25);
  box-shadow: 0 0 16px rgba(239, 68, 68, 0.15);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.btn-icon {
  padding: 8px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-icon:hover {
  color: var(--text-primary);
  background: var(--glass-bg);
  border-color: var(--glass-border);
}

.btn-pulse:hover {
  animation: btnPulse 1.5s ease-in-out infinite;
}

@keyframes btnPulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(0, 212, 170, 0.4);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(0, 212, 170, 0);
  }
}

/* ============================================================
   STATUS BADGES
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 9999px;
  line-height: 1.6;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.badge-draft {
  background: rgba(100, 116, 139, 0.2);
  color: #94a3b8;
  border: 1px solid rgba(100, 116, 139, 0.25);
}

.badge-pending {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.badge-approved {
  background: rgba(34, 197, 94, 0.15);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.badge-published {
  background: rgba(6, 182, 212, 0.15);
  color: #22d3ee;
  border: 1px solid rgba(6, 182, 212, 0.25);
}

.badge-failed {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

/* ============================================================
   FORM INPUTS
   ============================================================ */
.form-input {
  width: 100%;
  padding: 10px 14px;
  font-size: 0.875rem;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  outline: none;
  transition: all var(--transition-base);
  font-family: inherit;
}

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

.form-input:focus {
  border-color: var(--accent-teal);
  box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

.form-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

select.form-input {
  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 8.5L1 3.5h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.form-group {
  margin-bottom: 20px;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================================
   CHARACTER COUNTER
   ============================================================ */
.char-counter {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: right;
  margin-top: 4px;
  transition: color var(--transition-fast);
}

.char-counter.warning {
  color: var(--amber);
  font-weight: 600;
}

.char-counter.danger {
  color: var(--red);
  font-weight: 700;
}

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-content {
  background: var(--bg-secondary);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.3s ease;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-header h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ============================================================
   TOAST NOTIFICATIONS
   ============================================================ */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--bg-secondary);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  animation: toastSlideIn 0.4s ease, toastFadeOut 0.4s ease 4.6s forwards;
  pointer-events: auto;
  min-width: 280px;
  max-width: 420px;
  font-size: 0.875rem;
}

.toast-success {
  border-left: 3px solid var(--green);
}

.toast-error {
  border-left: 3px solid var(--red);
}

.toast-warning {
  border-left: 3px solid var(--amber);
}

.toast-info {
  border-left: 3px solid var(--accent-cyan);
}

.toast-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.toast-message {
  flex: 1;
  color: var(--text-primary);
}

.toast-close {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
  transition: color var(--transition-fast);
}

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

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes toastFadeOut {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(40px);
  }
}

/* ============================================================
   SKELETON LOADING
   ============================================================ */
.skeleton {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.04) 25%,
    rgba(255, 255, 255, 0.08) 50%,
    rgba(255, 255, 255, 0.04) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite ease-in-out;
  border-radius: var(--radius-sm);
}

.skeleton-text {
  height: 14px;
  margin-bottom: 8px;
  border-radius: 4px;
}

.skeleton-text:last-child {
  width: 60%;
}

.skeleton-circle {
  border-radius: 50%;
}

.skeleton-card {
  height: 120px;
  border-radius: var(--radius-lg);
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ============================================================
   FADE-IN ANIMATIONS
   ============================================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.fade-in {
  animation: fadeIn 0.5s ease forwards;
}

.fade-in-up {
  animation: fadeInUp 0.5s ease forwards;
}

.fade-in-down {
  animation: fadeInDown 0.4s ease forwards;
}

.fade-in-scale {
  animation: fadeInScale 0.4s ease forwards;
}

/* Stagger children */
.stagger-children > *:nth-child(1) { animation-delay: 0.05s; }
.stagger-children > *:nth-child(2) { animation-delay: 0.10s; }
.stagger-children > *:nth-child(3) { animation-delay: 0.15s; }
.stagger-children > *:nth-child(4) { animation-delay: 0.20s; }
.stagger-children > *:nth-child(5) { animation-delay: 0.25s; }
.stagger-children > *:nth-child(6) { animation-delay: 0.30s; }
.stagger-children > *:nth-child(7) { animation-delay: 0.35s; }
.stagger-children > *:nth-child(8) { animation-delay: 0.40s; }

/* ============================================================
   LOADING SPINNER
   ============================================================ */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-teal);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

.spinner-sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

.spinner-lg {
  width: 40px;
  height: 40px;
  border-width: 4px;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Centered spinner container */
.spinner-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
}

/* ============================================================
   COUNTER / NUMBER ANIMATION
   ============================================================ */
.count-up {
  display: inline-block;
  font-variant-numeric: tabular-nums;
  transition: all 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ============================================================
   DRAG & DROP ZONE
   ============================================================ */
.drop-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  text-align: center;
  color: var(--text-muted);
  transition: all var(--transition-base);
  cursor: pointer;
  background: transparent;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--accent-teal);
  background: rgba(0, 212, 170, 0.04);
  color: var(--text-secondary);
}

.drop-zone-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  opacity: 0.5;
  transition: opacity var(--transition-base);
}

.drop-zone:hover .drop-zone-icon,
.drop-zone.drag-over .drop-zone-icon {
  opacity: 0.8;
}

/* ============================================================
   TABS
   ============================================================ */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
  overflow-x: auto;
}

.tab {
  padding: 10px 20px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}

.tab:hover {
  color: var(--text-secondary);
}

.tab.active {
  color: var(--accent-teal);
  border-bottom-color: var(--accent-teal);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

/* ============================================================
   CHART CONTAINER
   ============================================================ */
.chart-container {
  position: relative;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 16 / 9;
}

.chart-container canvas {
  width: 100% !important;
  height: 100% !important;
}

.chart-container-square {
  aspect-ratio: 1 / 1;
  max-width: 320px;
}

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

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table thead th {
  background: rgba(255, 255, 255, 0.03);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.data-table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  vertical-align: middle;
}

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

.data-table tbody tr {
  transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* ============================================================
   STAT CARDS
   ============================================================ */
.stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-change {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 8px;
}

.stat-change.positive {
  color: var(--green);
}

.stat-change.negative {
  color: var(--red);
}

/* ============================================================
   PROGRESS BAR
   ============================================================ */
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--border-color);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent-teal), var(--accent-cyan));
  transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.progress-bar-fill.purple {
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-violet));
}

.progress-bar-fill.amber {
  background: linear-gradient(90deg, var(--amber), #f97316);
}

/* ============================================================
   MOBILE OVERLAY
   ============================================================ */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  z-index: 35;
  transition: opacity var(--transition-base);
}

.mobile-menu-btn {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 45;
  width: 40px;
  height: 40px;
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-menu-btn:hover {
  background: var(--glass-bg-strong);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .content-wrapper {
    padding: 20px 16px;
  }

  .top-header {
    padding: 0 16px 0 60px;
  }
}

@media (max-width: 768px) {
  .top-header h2 {
    font-size: 1rem;
  }

  .content-wrapper {
    padding: 16px 12px;
  }

  .glass-card,
  .glass-card-hover {
    padding: 16px;
    border-radius: var(--radius-md);
  }

  .modal-content {
    padding: 20px;
    margin: 8px;
  }

  .toast-container {
    left: 12px;
    right: 12px;
    bottom: 12px;
  }

  .toast {
    min-width: unset;
    max-width: 100%;
  }

  .stat-value {
    font-size: 1.5rem;
  }

  .chart-container {
    aspect-ratio: 4 / 3;
  }
}

@media (max-width: 480px) {
  .tabs {
    gap: 0;
  }

  .tab {
    padding: 8px 12px;
    font-size: 0.8rem;
  }
}

/* ============================================================
   UTILITIES
   ============================================================ */
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.no-select {
  user-select: none;
}

.cursor-grab {
  cursor: grab;
}

.cursor-grab:active {
  cursor: grabbing;
}

/* Visually hidden but accessible */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus ring for accessibility */
.focus-ring:focus-visible {
  outline: 2px solid var(--accent-teal);
  outline-offset: 2px;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  opacity: 0.3;
}

.empty-state h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 0.875rem;
  max-width: 360px;
  margin: 0 auto;
}

/* ----- Inline Images in Web Articles ----- */
.inline-img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  margin: 0;
  display: block;
}

.inline-img-wrapper {
  margin: 1.5rem 0;
  text-align: center;
}

.inline-img-wrapper figcaption {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: 0.5rem;
}

/* ----- AI Image Generation ----- */
.ai-gen-shimmer {
  background: linear-gradient(
    90deg,
    rgba(99, 102, 241, 0.05) 0%,
    rgba(99, 102, 241, 0.15) 50%,
    rgba(99, 102, 241, 0.05) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}