/* ============================================
   SG Finance Calculator - Main Stylesheet
   ============================================ */

/* CSS Custom Properties */
:root {
  /* Light Theme */
  --bg-primary: #f5f7fa;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-input: #f0f2f5;
  --bg-nav: rgba(255, 255, 255, 0.95);
  --bg-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --bg-accent: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-muted: #8888a0;
  --text-on-accent: #ffffff;
  --border-color: #e2e8f0;
  --border-input: #d1d5db;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
  --accent: #667eea;
  --accent-hover: #5a6fd6;
  --accent-light: rgba(102, 126, 234, 0.1);
  --success: #22c55e;
  --success-light: rgba(34, 197, 94, 0.1);
  --warning: #f59e0b;
  --warning-light: rgba(245, 158, 11, 0.1);
  --danger: #ef4444;
  --danger-light: rgba(239, 68, 68, 0.1);
  --info: #3b82f6;
  --info-light: rgba(59, 130, 246, 0.1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

[data-theme="dark"] {
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-card: #1e1e35;
  --bg-input: #252540;
  --bg-nav: rgba(15, 15, 26, 0.95);
  --bg-hero: linear-gradient(135deg, #4a3f8a 0%, #5c2d82 100%);
  --text-primary: #e8e8f0;
  --text-secondary: #b0b0c8;
  --text-muted: #6a6a88;
  --border-color: #2a2a45;
  --border-input: #3a3a55;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.2);
  --accent-light: rgba(102, 126, 234, 0.15);
  --success-light: rgba(34, 197, 94, 0.15);
  --warning-light: rgba(245, 158, 11, 0.15);
  --danger-light: rgba(239, 68, 68, 0.15);
  --info-light: rgba(59, 130, 246, 0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  transition: background 0.3s ease, color 0.3s ease;
}

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

a:hover {
  color: var(--accent-hover);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-nav);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text-primary);
}

.nav-brand svg {
  width: 28px;
  height: 28px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--accent-light);
  color: var(--accent);
}

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

/* Theme Toggle */
.theme-toggle {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.theme-toggle:hover {
  background: var(--accent-light);
  color: var(--accent);
  border-color: var(--accent);
}

/* Mobile Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* Dropdown for nav */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  background: none;
  border: none;
  font-family: inherit;
}

.nav-dropdown-btn:hover {
  background: var(--accent-light);
  color: var(--accent);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  min-width: 220px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: var(--transition);
  z-index: 100;
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.nav-dropdown-menu a:hover {
  background: var(--accent-light);
  color: var(--accent);
}

/* Main Content */
.main-content {
  padding-top: 64px;
  min-height: 100vh;
}

/* Hero Section */
.hero {
  background: var(--bg-hero);
  padding: 4rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.container-sm {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

/* Section Titles */
.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.card-grid-sm {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.card-link {
  display: block;
  color: inherit;
}

.card-link:hover {
  color: inherit;
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1rem;
  background: var(--accent-light);
  color: var(--accent);
}

.card-icon.green { background: var(--success-light); color: var(--success); }
.card-icon.orange { background: var(--warning-light); color: var(--warning); }
.card-icon.red { background: var(--danger-light); color: var(--danger); }
.card-icon.blue { background: var(--info-light); color: var(--info); }

.card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.card-arrow {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  color: var(--text-muted);
  transition: var(--transition);
  font-size: 1.1rem;
}

.card:hover .card-arrow {
  color: var(--accent);
  transform: translateX(3px);
}

/* Featured Section */
.featured {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.featured-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

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

.featured-icon {
  width: 56px;
  height: 56px;
  min-width: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  background: var(--bg-accent);
  color: #fff;
}

.featured-text h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.featured-text p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Calculator Page Layout */
.calc-page {
  padding-top: 64px;
  min-height: 100vh;
}

.calc-header {
  background: var(--bg-hero);
  padding: 2.5rem 2rem;
  text-align: center;
}

.calc-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
}

.calc-header p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
}

.calc-body {
  max-width: 900px;
  margin: -2rem auto 2rem;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.calc-form {
  padding: 2rem;
}

.calc-results {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 2rem;
}

/* Form Elements */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-group label .info-icon {
  cursor: help;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.form-group input,
.form-group select {
  padding: 10px 14px;
  border: 1px solid var(--border-input);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

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

.form-group .input-prefix {
  position: relative;
}

.form-group .input-prefix span {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

.form-group .input-prefix input {
  padding-left: 32px;
}

.form-group .input-suffix {
  position: relative;
}

.form-group .input-suffix span {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.form-group .input-suffix input {
  padding-right: 36px;
}

.form-group small {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.form-group .error-msg {
  color: var(--danger);
  font-size: 0.78rem;
  display: none;
}

.form-group.has-error input {
  border-color: var(--danger);
}

.form-group.has-error .error-msg {
  display: block;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  outline: none;
}

.btn-primary {
  background: var(--bg-accent);
  color: #fff;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background: var(--accent-light);
  color: var(--accent);
  border-color: var(--accent);
}

.btn-group {
  display: flex;
  gap: 12px;
  margin-top: 1.5rem;
}

/* Result Cards */
.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.result-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  transition: var(--transition);
}

.result-item:hover {
  border-color: var(--accent);
}

.result-item .result-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
}

.result-item .result-value {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent);
}

.result-item .result-value.green { color: var(--success); }
.result-item .result-value.red { color: var(--danger); }
.result-item .result-value.orange { color: var(--warning); }

.result-highlight {
  background: var(--accent-light);
  border-color: var(--accent);
}

.result-highlight .result-value {
  font-size: 1.6rem;
}

/* Formula Box */
.formula-box {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-top: 1.5rem;
}

.formula-box h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

.formula-box code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  background: var(--bg-card);
  padding: 2px 8px;
  border-radius: 4px;
}

.formula-box p {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  line-height: 1.5;
}

/* Chart Container */
.chart-container {
  margin-top: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 250px;
}

.chart-container canvas {
  max-width: 100%;
}

/* Progress Bars */
.progress-bar-container {
  margin-top: 0.5rem;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  margin-bottom: 4px;
}

.progress-label span:first-child {
  color: var(--text-secondary);
  font-weight: 500;
}

.progress-label span:last-child {
  color: var(--text-muted);
}

.progress-bar {
  height: 8px;
  background: var(--bg-input);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.progress-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--accent);
}

.progress-fill.green { background: var(--success); }
.progress-fill.orange { background: var(--warning); }
.progress-fill.red { background: var(--danger); }

/* Badge / Tag */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-info { background: var(--info-light); color: var(--info); }

/* Tooltip */
.tooltip {
  position: relative;
  display: inline-flex;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-primary);
  color: var(--bg-primary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  z-index: 10;
}

.tooltip:hover::after {
  opacity: 1;
}

/* Breakdown Table */
.breakdown-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.breakdown-table th,
.breakdown-table td {
  padding: 10px 14px;
  text-align: left;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border-color);
}

.breakdown-table th {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

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

.breakdown-table tr:hover td {
  background: var(--accent-light);
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 2rem;
  text-align: center;
  margin-top: 3rem;
}

.footer p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer a {
  color: var(--accent);
  font-weight: 500;
}

.footer a:hover {
  text-decoration: underline;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-input);
  padding: 4px;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  overflow-x: auto;
}

.tab-btn {
  padding: 8px 16px;
  border: none;
  background: transparent;
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.tab-btn.active {
  background: var(--bg-card);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.tab-btn:hover:not(.active) {
  color: var(--text-primary);
}

/* Alert / Info Box */
.info-box {
  display: flex;
  gap: 12px;
  background: var(--info-light);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}

.info-box-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.info-box p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Divider */
.divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 1.5rem 0;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-muted);
}

.empty-state svg {
  width: 64px;
  height: 64px;
  margin-bottom: 1rem;
  opacity: 0.5;
}

/* Responsive */
@media (max-width: 768px) {
  .navbar {
    padding: 0 1rem;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-nav);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 1rem;
    gap: 2px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: 1rem;
    background: transparent;
  }

  .hamburger {
    display: flex;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero {
    padding: 3rem 1.5rem;
  }

  .container, .container-sm {
    padding: 1.5rem;
  }

  .calc-body {
    padding: 0 1rem;
  }

  .calc-form, .calc-results {
    padding: 1.5rem;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .result-grid {
    grid-template-columns: 1fr 1fr;
  }

  .btn-group {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .featured {
    grid-template-columns: 1fr;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .result-grid {
    grid-template-columns: 1fr;
  }
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

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

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

.slide-up {
  animation: slideUp 0.5s ease forwards;
}

/* Pie chart legend */
.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
  justify-content: center;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

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

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

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

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