:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-muted: #64748b;--color-error-bg: #fef2f2;--color-error-text: #b91c1c;--color-error-border: #fca5a5;--radius: .5rem;--shadow: 0 1px 3px rgba(0, 0, 0, .1), 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07), 0 2px 4px rgba(0, 0, 0, .06);--navbar-height: 4rem;--focus-ring: 0 0 0 3px rgba(37, 99, 235, .45)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background-color:var(--color-bg);color:var(--color-text);line-height:1.5;min-height:100dvh}a{color:inherit;text-decoration:none}button{cursor:pointer;font:inherit;border:none;background:none}ul{list-style:none}:focus-visible{outline:3px solid 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