:root {
  --bg: #090d16;
  --bg-card: #111726;
  --bg-card-hover: #161e31;
  --border: #1e293b;
  --border-focus: #334155;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent: #10b981;
  --accent-soft: rgba(16, 185, 129, 0.12);
  --solar: #f59e0b;
  --solar-soft: rgba(245, 158, 11, 0.12);
  --blue: #38bdf8;
  --blue-soft: rgba(56, 189, 248, 0.12);
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Hiragino Sans', 'Noto Sans JP', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

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

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

.app-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Header */
.dashboard-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.75rem;
}

.header-main {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.system-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  background-color: var(--solar-soft);
  color: var(--solar);
  margin-bottom: 0.5rem;
}

.title-group h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.925rem;
  margin-top: 0.25rem;
}

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

/* Language Switcher */
.lang-switch-group {
  display: inline-flex;
  align-items: center;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.2rem 0.4rem;
  gap: 0.25rem;
}

.lang-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-main);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.55rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.lang-btn:hover {
  color: var(--text-main);
}

.lang-btn.active {
  background-color: var(--border-focus);
  color: #fff;
}

.lang-divider {
  color: var(--text-dim);
  font-size: 0.75rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-main);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent);
  color: #042f20;
}

.btn-primary:hover {
  background-color: #34d399;
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-main);
  border-color: var(--border);
}

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

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: var(--bg-card);
  color: var(--text-main);
}

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

.metric-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.metric-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.metric-value-group {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-top: 0.6rem;
  margin-bottom: 0.5rem;
}

.metric-value {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-main);
  letter-spacing: -0.03em;
  margin: 0.4rem 0 0.2rem 0;
}

.metric-sub {
  font-size: 0.825rem;
  color: var(--text-dim);
}

.progress-bar-container {
  width: 100%;
  height: 6px;
  background-color: var(--border);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 0.75rem;
}

.progress-bar-fill {
  height: 100%;
  background-color: var(--accent);
  border-radius: 99px;
  transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Charts Grid */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.chart-panel {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
}

.chart-panel.full-width {
  grid-column: 1 / -1;
}

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

.panel-header h2 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
}

.panel-subtitle {
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.chart-wrapper {
  position: relative;
  width: 100%;
  height: 280px;
}

.chart-panel.full-width .chart-wrapper {
  height: 320px;
}

/* Ledger Table */
.table-section {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
}

.table-container {
  overflow-x: auto;
  margin-top: 0.5rem;
}

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

.data-table th,
.data-table td {
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.775rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background-color: rgba(17, 23, 38, 0.6);
}

.data-table th:first-child,
.data-table td:first-child {
  text-align: left;
}

.data-table td {
  font-family: var(--font-mono);
  font-size: 0.825rem;
  color: var(--text-main);
}

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

.highlight-positive {
  color: var(--accent);
}

.month-cell {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.warning-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  cursor: help;
  position: relative;
}

.table-empty-message {
  text-align: center !important;
  color: var(--text-dim);
  padding: 2rem !important;
  font-style: italic;
}

.dashboard-footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  padding: 1rem 0;
}

.dashboard-footer code {
  font-family: var(--font-mono);
  background: var(--bg-card);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  border: 1px solid var(--border);
}

@media (max-width: 860px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }
}