:root {
  --taxai-bg: #f6f8fb;
  --taxai-surface: #ffffff;
  --taxai-surface-soft: #f8fafc;
  --taxai-text: #0f172a;
  --taxai-muted: #64748b;
  --taxai-border: rgba(15,23,42,.10);
  --taxai-primary: #2563eb;
  --taxai-primary-soft: rgba(37,99,235,.10);
  --taxai-success: #059669;
  --taxai-warning: #d97706;
  --taxai-danger: #dc2626;
  --taxai-radius: 18px;
  --taxai-shadow: 0 18px 45px rgba(15,23,42,.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --taxai-bg: #020617;
    --taxai-surface: #0f172a;
    --taxai-surface-soft: #111827;
    --taxai-text: #e5e7eb;
    --taxai-muted: #94a3b8;
    --taxai-border: rgba(255,255,255,.12);
    --taxai-primary-soft: rgba(96,165,250,.18);
    --taxai-shadow: 0 18px 45px rgba(0,0,0,.35);
  }
}

body {
  background: var(--taxai-bg);
  color: var(--taxai-text);
}

.taxai-page,
.taxai-ds-page {
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px;
}

.taxai-page-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 22px;
}

.taxai-page-title {
  font-size: clamp(24px, 2vw, 34px);
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--taxai-text);
  margin: 0;
}

.taxai-page-subtitle {
  margin-top: 8px;
  color: var(--taxai-muted);
  line-height: 1.7;
}

.taxai-grid,
.taxai-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.taxai-card,
.taxai-kpi-card,
.taxai-panel,
.taxai-dashboard-card {
  background: var(--taxai-surface);
  border: 1px solid var(--taxai-border);
  border-radius: var(--taxai-radius);
  box-shadow: var(--taxai-shadow);
  padding: 20px;
  color: var(--taxai-text);
}

.taxai-kpi-label {
  color: var(--taxai-muted);
  font-size: 13px;
  font-weight: 700;
}

.taxai-kpi-value {
  margin-top: 8px;
  font-size: clamp(24px, 2.4vw, 36px);
  font-weight: 900;
  letter-spacing: -.04em;
}

.taxai-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--taxai-border);
  border-radius: var(--taxai-radius);
  background: var(--taxai-surface);
  box-shadow: var(--taxai-shadow);
}

.taxai-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.taxai-table th,
.taxai-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--taxai-border);
  text-align: left;
  vertical-align: middle;
}

.taxai-table th {
  background: var(--taxai-surface-soft);
  color: var(--taxai-muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .04em;
}

.taxai-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.taxai-form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.taxai-label {
  font-size: 13px;
  font-weight: 800;
  color: var(--taxai-text);
}

.taxai-input,
.taxai-select,
.taxai-textarea,
input.taxai-input,
select.taxai-select,
textarea.taxai-textarea {
  width: 100%;
  border: 1px solid var(--taxai-border);
  border-radius: 14px;
  padding: 11px 13px;
  background: var(--taxai-surface);
  color: var(--taxai-text);
  outline: none;
}

.taxai-input:focus,
.taxai-select:focus,
.taxai-textarea:focus {
  border-color: var(--taxai-primary);
  box-shadow: 0 0 0 4px var(--taxai-primary-soft);
}

.taxai-btn,
.taxai-btn-primary,
.taxai-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 800;
  text-decoration: none;
  border: 1px solid var(--taxai-border);
  cursor: pointer;
}

.taxai-btn-primary {
  background: var(--taxai-primary);
  color: #fff;
  border-color: var(--taxai-primary);
}

.taxai-btn-secondary {
  background: var(--taxai-surface);
  color: var(--taxai-text);
}

.taxai-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 800;
  background: var(--taxai-primary-soft);
  color: var(--taxai-primary);
}

.taxai-icon {
  width: 1.1em;
  height: 1.1em;
  display: inline-block;
  flex: 0 0 auto;
}

@media (max-width: 768px) {
  .taxai-page,
  .taxai-ds-page {
    padding: 16px;
  }

  .taxai-page-header {
    flex-direction: column;
  }

  .taxai-card,
  .taxai-kpi-card,
  .taxai-panel,
  .taxai-dashboard-card {
    padding: 16px;
  }
}