/* ═══════════════════════════════════════
   CSS Design System — 暗色主题 + 玻璃拟态
   ═══════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap');

/* ─── Design Tokens ─── */
:root {
  /* 颜色系统 */
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.8);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-hover: rgba(255, 255, 255, 0.06);
  --bg-input: rgba(255, 255, 255, 0.05);

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-medium: rgba(255, 255, 255, 0.1);
  --border-accent: rgba(74, 158, 255, 0.3);

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #4A9EFF;

  --accent-blue: #4A9EFF;
  --accent-blue-dim: rgba(74, 158, 255, 0.15);
  --accent-green: #10b981;
  --accent-green-dim: rgba(16, 185, 129, 0.15);
  --accent-red: #ef4444;
  --accent-red-dim: rgba(239, 68, 68, 0.15);
  --accent-orange: #f59e0b;
  --accent-orange-dim: rgba(245, 158, 11, 0.15);
  --accent-purple: #8b5cf6;

  /* 阴影 */
  --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-blue: 0 0 20px rgba(74, 158, 255, 0.15);
  --shadow-glow-green: 0 0 20px rgba(16, 185, 129, 0.15);

  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* 排版 */
  --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;

  /* 动画 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* 背景装饰 */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(74, 158, 255, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(139, 92, 246, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(16, 185, 129, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ─── Layout ─── */
.app-container {
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

/* ─── Header ─── */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 28px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  margin-bottom: 24px;
  backdrop-filter: blur(20px);
}

.app-title {
  display: flex;
  align-items: center;
  gap: 14px;
}

.app-title .icon {
  font-size: 1.8rem;
  filter: drop-shadow(0 0 8px rgba(74, 158, 255, 0.4));
}

.app-title h1 {
  font-size: 1.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.app-title .subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-top: 2px;
}

.header-actions {
  display: flex;
  gap: 10px;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  background: var(--bg-glass);
  color: var(--text-secondary);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  background: var(--bg-glass-hover);
  color: var(--text-primary);
  border-color: var(--border-accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow-blue);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), #3b82f6);
  border-color: transparent;
  color: white;
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow-blue);
  border-color: transparent;
  filter: brightness(1.1);
}

.btn-danger {
  color: var(--accent-red);
  border-color: rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
  background: var(--accent-red-dim);
  border-color: var(--accent-red);
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.15);
}

.btn-success {
  background: linear-gradient(135deg, var(--accent-green), #059669);
  border-color: transparent;
  color: white;
}

.btn-success:hover {
  box-shadow: var(--shadow-glow-green);
  filter: brightness(1.1);
}

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

.btn-icon {
  padding: 8px;
  border-radius: var(--radius-sm);
  min-width: 36px;
  justify-content: center;
}

/* ─── Controls Bar ─── */
.controls-bar {
  display: flex;
  gap: 16px;
  align-items: stretch;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.control-group {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.control-group.month-selector {
  flex: 0 0 auto;
}

.control-group.kol-selector {
  flex: 1 1 auto;
}

.control-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.month-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.month-nav .btn-icon {
  font-size: 1rem;
  padding: 6px 12px;
}

.month-display {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  min-width: 120px;
  text-align: center;
}

.kol-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.kol-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  border: 1px solid var(--border-medium);
  background: var(--bg-glass);
  color: var(--text-secondary);
  user-select: none;
}

.kol-chip:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-accent);
}

.kol-chip.active {
  border-color: var(--chip-color, var(--accent-blue));
  background: var(--chip-bg, var(--accent-blue-dim));
  color: var(--text-primary);
  box-shadow: 0 0 12px var(--chip-glow, rgba(74, 158, 255, 0.15));
}

.kol-chip .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--chip-color, var(--accent-blue));
}

/* ─── Chart Container ─── */
.chart-container {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 28px;
  margin-bottom: 24px;
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.chart-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
  opacity: 0.3;
}

.chart-wrapper {
  position: relative;
  height: 420px;
  width: 100%;
}

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

/* ─── Tooltip / Popover ─── */
.opinion-popover {
  position: fixed;
  z-index: 1000;
  min-width: 320px;
  max-width: 420px;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 0;
  backdrop-filter: blur(24px);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transform: translateY(8px) scale(0.96);
  transition: all var(--duration-normal) var(--ease-spring);
  pointer-events: none;
}

.opinion-popover.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.popover-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.popover-date {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.popover-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.2rem;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast);
  line-height: 1;
}

.popover-close:hover {
  color: var(--text-primary);
  background: var(--bg-glass-hover);
}

.popover-body {
  padding: 16px 20px;
  max-height: 360px;
  overflow-y: auto;
}

.popover-body::-webkit-scrollbar {
  width: 4px;
}

.popover-body::-webkit-scrollbar-track {
  background: transparent;
}

.popover-body::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: 2px;
}

.opinion-card {
  padding: 14px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  transition: all var(--duration-fast);
}

.opinion-card:last-child {
  margin-bottom: 0;
}

.opinion-card:hover {
  border-color: var(--border-accent);
  background: var(--bg-glass-hover);
}

.opinion-kol-info {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.opinion-kol-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}

.opinion-kol-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.opinion-value {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 100px;
  margin-left: auto;
}

.opinion-value.positive {
  background: var(--accent-green-dim);
  color: var(--accent-green);
}

.opinion-value.negative {
  background: var(--accent-red-dim);
  color: var(--accent-red);
}

.opinion-value.neutral {
  background: var(--accent-orange-dim);
  color: var(--accent-orange);
}

.opinion-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  padding-left: 42px;
}

/* ─── Legend / Stats Bar ─── */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  backdrop-filter: blur(20px);
  transition: all var(--duration-normal) var(--ease-out);
}

.stat-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-blue);
}

.stat-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.stat-value.up { color: var(--accent-green); }
.stat-value.down { color: var(--accent-red); }
.stat-value.neutral { color: var(--accent-orange); }

/* ─── Admin Page ─── */
.admin-container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

/* Login Form */
.login-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80vh;
}

.login-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
}

.login-card h2 {
  text-align: center;
  margin-bottom: 8px;
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-card .login-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 32px;
}

/* Form Elements */
.form-group {
  margin-bottom: 18px;
}

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

.form-input {
  width: 100%;
  padding: 11px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  transition: all var(--duration-normal);
  outline: none;
}

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

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

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 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
}

select.form-input option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

textarea.form-input {
  resize: vertical;
  min-height: 60px;
}

.form-error {
  color: var(--accent-red);
  font-size: 0.82rem;
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ─── Tabs ─── */
.admin-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 4px;
  margin-bottom: 24px;
}

.admin-tab {
  flex: 1;
  padding: 12px 20px;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--duration-normal);
  text-align: center;
}

.admin-tab:hover {
  color: var(--text-secondary);
  background: var(--bg-glass-hover);
}

.admin-tab.active {
  background: var(--accent-blue-dim);
  color: var(--accent-blue);
  font-weight: 600;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: fadeIn var(--duration-normal) var(--ease-out);
}

/* ─── Data Table ─── */
.data-table-wrapper {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(20px);
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-subtle);
}

.table-header h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  padding: 12px 18px;
  text-align: left;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(0, 0, 0, 0.2);
}

.data-table td {
  padding: 12px 18px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

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

.data-table tr:hover td {
  background: var(--bg-glass-hover);
}

.data-table .actions {
  display: flex;
  gap: 6px;
}

/* ─── Prediction Editor ─── */
.prediction-controls {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.prediction-controls .form-group {
  margin-bottom: 0;
}

.prediction-grid {
  display: grid;
  grid-template-columns: 60px 120px 1fr;
  gap: 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.prediction-grid .grid-header {
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.3);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--border-subtle);
}

.prediction-grid .grid-cell {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
}

.prediction-grid .grid-cell.day-cell {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.9rem;
  justify-content: center;
  background: rgba(0, 0, 0, 0.1);
}

.prediction-grid .grid-cell input,
.prediction-grid .grid-cell textarea {
  width: 100%;
  padding: 6px 10px;
  background: var(--bg-input);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  transition: all var(--duration-fast);
  outline: none;
}

.prediction-grid .grid-cell input:focus,
.prediction-grid .grid-cell textarea:focus {
  border-color: var(--accent-blue);
  background: rgba(74, 158, 255, 0.05);
}

.prediction-grid .grid-cell textarea {
  resize: none;
  min-height: 32px;
  line-height: 1.4;
}

/* ─── Modal ─── */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal);
}

.modal-overlay.visible {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 32px;
  width: 90%;
  max-width: 480px;
  transform: scale(0.95) translateY(10px);
  transition: all var(--duration-normal) var(--ease-spring);
  box-shadow: var(--shadow-lg);
}

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

.modal-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 24px;
}

/* ─── Toast ─── */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 14px 20px;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--text-primary);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
  animation: slideInRight var(--duration-normal) var(--ease-spring);
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 360px;
}

.toast.success {
  border-color: rgba(16, 185, 129, 0.3);
}

.toast.error {
  border-color: rgba(239, 68, 68, 0.3);
}

.toast.fadeout {
  animation: slideOutRight var(--duration-normal) var(--ease-out) forwards;
}

/* ─── Empty State ─── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state .icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state p {
  font-size: 0.9rem;
  margin-bottom: 8px;
}

/* ─── Role Badge ─── */
.role-badge {
  display: inline-flex;
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.role-badge.admin {
  background: var(--accent-blue-dim);
  color: var(--accent-blue);
}

.role-badge.editor {
  background: var(--accent-green-dim);
  color: var(--accent-green);
}

/* ─── Color Picker ─── */
.color-input-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
}

.color-preview {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border-medium);
  cursor: pointer;
}

input[type="color"] {
  width: 0;
  height: 0;
  padding: 0;
  border: none;
  opacity: 0;
  position: absolute;
}

/* ─── Animations ─── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

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

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ─── Loading ─── */
.loading {
  display: flex;
  justify-content: center;
  padding: 40px;
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border-subtle);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

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

::-webkit-scrollbar-track {
  background: transparent;
}

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

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

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .app-container, .admin-container {
    padding: 16px;
  }

  .app-header {
    flex-direction: column;
    gap: 16px;
    padding: 16px 20px;
  }

  .controls-bar {
    flex-direction: column;
  }

  .chart-wrapper {
    height: 300px;
  }

  .stats-bar {
    grid-template-columns: 1fr 1fr;
  }

  .opinion-popover {
    min-width: 280px;
    max-width: 90vw;
  }

  .prediction-grid {
    grid-template-columns: 50px 90px 1fr;
  }
}