:root{--bg-primary: #f8fafc;--bg-surface: #ffffff;--bg-surface-elevated: #ffffff;--bg-surface-card: #f1f5f9;--bg-surface-glass: #ffffff;--border-subtle: #e2e8f0;--border-default: #cbd5e1;--border-strong: #94a3b8;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #64748b;--text-inverse: #ffffff;--color-brand: #0284c7;--color-heart-rate: #e11d48;--color-spo2: #0284c7;--color-temp: #d97706;--color-resp: #059669;--color-success: #059669;--color-warning: #d97706;--color-danger: #dc2626;--color-info: #4f46e5;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--radius-sm: .25rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-xl: .5rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 1px 3px 0 rgba(0, 0, 0, .08), 0 1px 2px -1px rgba(0, 0, 0, .08);--shadow-lg: 0 4px 6px -1px rgba(0, 0, 0, .07)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh;display:flex;flex-direction:column}.app-container{display:flex;flex-direction:column;min-height:100vh;background-color:var(--bg-primary)}.app-header{height:3.5rem;border-bottom:1px solid var(--border-subtle);background:var(--bg-surface);padding:0 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