:root,[data-theme=light]{--bg: #f7f8fa;--card: #ffffff;--border: #e4e7eb;--border-hover: #d1d5db;--fg: #0f172a;--fg-muted: #64748b;--label-fg: #334155;--nav-fg: #334155;--primary: #0f172a;--primary-hover: #1f2937;--primary-fg: #ffffff;--accent: #2563eb;--accent-hover: #1d4ed8;--danger: #dc2626;--danger-hover: #b91c1c;--success: #16a34a;--tag-bg: #eef2ff;--tag-fg: #4338ca;--hover-bg: #f1f5f9;--table-head: #f8fafc;--row-today: #fffbeb;--row-today-hover: #fef3c7;--info-bg: #eff6ff;--info-border: #bfdbfe;--info-fg: #1e3a8a;--error-bg: #fef2f2;--error-border: #fecaca;--warn-bg: #fef3c7;--warn-fg: #92400e;--focus-ring: rgba(37, 99, 235, .18);--shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);--shadow-md: 0 4px 12px rgba(15, 23, 42, .08);--radius: 10px;--radius-sm: 6px;--select-chevron: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 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10px;font-size:14px}.card{padding:14px}}