:root{--bg-canvas: #f8fafc;--surface-card: #ffffff;--surface-hover: #f1f5f9;--border-subtle: #e2e8f0;--border-focus: #0b0d12;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--brand: #0b0d12;--brand-hover: #272a31;--brand-soft: #f1f5f9;--brand-on: #ffffff;--present-bg: #ecfdf5;--present-border: #a7f3d0;--present-text: #059669;--absent-bg: #fef2f2;--absent-border: #fecaca;--absent-text: #dc2626;--excused-bg: #eff6ff;--excused-border: #bfdbfe;--excused-text: #2563eb;--late-bg: #fffbeb;--late-border: #fde68a;--late-text: #d97706;--radius: 12px;--radius-sm: 8px;--shadow-card: 0 1px 2px rgba(15, 23, 42, .04), 0 8px 24px rgba(15, 23, 42, .04);--font-sans: "Plus Jakarta Sans", "Inter", "Segoe UI", Roboto, "Noto Sans", system-ui, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, 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