:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: rgba(30, 41, 59, 0.7);
  --bg-card-hover: #334155;
  --border-color: rgba(148, 163, 184, 0.15);
  --border-focus: #38bdf8;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-cyan: #06b6d4;
  --accent-blue: #3b82f6;
  --accent-indigo: #6366f1;
  --accent-purple: #a855f7;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  
  --badge-in-stock-bg: rgba(16, 185, 129, 0.15);
  --badge-in-stock-text: #34d399;
  --badge-in-stock-border: rgba(16, 185, 129, 0.3);

  --badge-import-bg: rgba(59, 130, 246, 0.15);
  --badge-import-text: #60a5fa;
  --badge-import-border: rgba(59, 130, 246, 0.3);

  --badge-discontinued-bg: rgba(244, 63, 94, 0.15);
  --badge-discontinued-text: #fb7185;
  --badge-discontinued-border: rgba(244, 63, 94, 0.3);

  --badge-unconfirmed-bg: rgba(148, 163, 184, 0.15);
  --badge-unconfirmed-text: #cbd5e1;
  --badge-unconfirmed-border: rgba(148, 163, 184, 0.3);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(56, 189, 248, 0.2);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: #f1f5f9;
  --border-color: rgba(203, 213, 225, 0.8);
  --border-focus: #0284c7;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 15px rgba(14, 165, 233, 0.15);
}

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

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

/* Header & Navbar */
.navbar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
}

.nav-container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
}

.brand-logo .brand-title {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-size: 0.72rem;
  font-weight: 800;
  background: linear-gradient(135deg, #f43f5e, #a855f7);
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff !important;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  box-shadow: 0 2px 8px rgba(244, 63, 94, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.35);
  display: inline-block;
  line-height: 1.2;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: white;
  border: none;
  box-shadow: 0 2px 8px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 4px 14px rgba(6, 182, 212, 0.45);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
}

/* Container */
.main-content {
  max-width: 1600px;
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* KPI Summary Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.kpi-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-focus);
}

.kpi-info h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.kpi-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.kpi-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent-cyan);
}

/* Filter & Control Bar */
.filter-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.filter-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.search-input-wrap {
  flex: 1;
  min-width: 260px;
  position: relative;
}

.search-input-wrap input {
  width: 100%;
  padding: 0.6rem 1rem 0.6rem 2.5rem;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  transition: border-color 0.2s;
}

.search-input-wrap input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

.search-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.filter-select {
  padding: 0.55rem 0.85rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  min-width: 140px;
}

.filter-select:focus {
  outline: none;
  border-color: var(--border-focus);
}

/* Scatter Plot Section */
.chart-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.chart-title {
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.chart-container {
  width: 100%;
  height: 400px;
  position: relative;
}

/* Table Section */
.table-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow-x: auto;
  box-shadow: var(--shadow-md);
}

.scores-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.scores-table th {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 700;
  padding: 0.75rem 0.85rem;
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
  user-select: none;
}

.scores-table th.sortable {
  cursor: pointer;
  transition: color 0.15s ease;
}

.scores-table th.sortable:hover {
  color: var(--accent-cyan);
}

.scores-table th.active-sort {
  color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
}

.scores-table td {
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

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

.speaker-title-cell {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.92rem;
}

.speaker-subinfo {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-top: 0.15rem;
}

/* Price & Score formatting */
.price-usd {
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.price-jpy {
  font-weight: 800;
  font-size: 0.95rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
}

.score-cell {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
}

.score-high {
  color: #34d399;
}
.score-mid {
  color: #60a5fa;
}
.score-low {
  color: #cbd5e1;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  border: 1px solid transparent;
  white-space: nowrap;
}

.badge-in-stock {
  background: var(--badge-in-stock-bg);
  color: var(--badge-in-stock-text);
  border-color: var(--badge-in-stock-border);
}

.badge-import {
  background: var(--badge-import-bg);
  color: var(--badge-import-text);
  border-color: var(--badge-import-border);
}

.badge-discontinued {
  background: var(--badge-discontinued-bg);
  color: var(--badge-discontinued-text);
  border-color: var(--badge-discontinued-border);
}

.badge-unconfirmed {
  background: var(--badge-unconfirmed-bg);
  color: var(--badge-unconfirmed-text);
  border-color: var(--badge-unconfirmed-border);
}

.cp-badge {
  font-family: var(--font-mono);
  font-weight: 800;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
}

.cp-positive {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.cp-negative {
  background: rgba(244, 63, 94, 0.15);
  color: #fb7185;
  border: 1px solid rgba(244, 63, 94, 0.3);
}

/* Pagination */
.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

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

.modal-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  width: 90%;
  max-width: 540px;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: transform 0.2s ease;
}

.modal-overlay.active .modal-box {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.9rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
}

/* Responsive */
@media (max-width: 768px) {
  .main-content {
    padding: 0.75rem;
  }
  .filter-row {
    flex-direction: column;
    align-items: stretch;
  }
  .chart-container {
    height: 300px;
  }
}