:root{--color-primary:#005fcc;--color-primary-hover:#004aa3;--color-primary-active:#003882;--color-error:#c0392b;--color-error-bg:#fff0ee;--color-error-border:#c0392b;--color-success:#1a7a2e;--color-success-bg:#f0fff3;--color-warning:#7a5200;--color-warning-bg:#fffbea;--color-text:#1a1a1a;--color-text-muted:#595959;--color-text-inverse:#ffffff;--color-bg:#ffffff;--color-bg-subtle:#f5f5f5;--color-border:#767676;--color-border-subtle:#b0b0b0;--color-focus:#005fcc;--focus-ring:3px solid var(--color-focus);--focus-offset:2px;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--font-sans:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--font-mono:ui-monospace,"Cascadia Code",Menlo,monospace;--text-sm:0.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:1.875rem;--line-height:1.6;--radius:4px;--radius-lg:8px;--transition:150ms ease-in-out;--max-width:1200px;--content-width:720px}@media (prefers-color-scheme:dark){:root{--color-primary:#5ba3ff;--color-primary-hover:#7cb8ff;--color-text:#f0f0f0;--color-text-muted:#b0b0b0;--color-text-inverse:#1a1a1a;--color-bg:#121212;--color-bg-subtle:#1e1e1e;--color-border:#888888;--color-border-subtle:#555555;--color-error:#ff7f7f;--color-error-bg:#2d0a08;--color-success:#5fcf7a;--color-success-bg:#082d12}}@media (prefers-contrast:high){:root{--color-primary:#0000cc;--color-text:#000000;--color-bg:#ffffff;--color-border:#000000;--color-error:#cc0000;--focus-ring:3px solid #000000}}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:100%;scroll-behavior:smooth}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}body{font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--line-height);color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;min-height:100vh}:focus:not(:focus-visible){outline:none}:focus-visible{outline:var(--focus-ring);outline-offset:var(--focus-offset);border-radius:var(--radius)}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.3;color:var(--color-text)}h1{font-size:var(--text-3xl)}h2{font-size:var(--text-2xl)}h3{font-size:var(--text-xl)}h4{font-size:var(--text-lg)}h5{font-size:var(--text-base)}h6{font-size:var(--text-sm)}p{line-height:var(--line-height)}dd,li,p{max-width:80ch}a{color:var(--color-primary);text-decoration:underline;text-underline-offset:2px}a:hover{color:var(--color-primary-hover)}label{display:block;font-weight:500;margin-bottom:var(--space-1);color:var(--color-text)}input,select,textarea{font-family:var(--font-sans);font-size:var(--text-base);color:var(--color-text);background-color:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);padding:var(--space-2) var(--space-3);width:100%;transition:border-color var(--transition),box-shadow var(--transition)}input:focus-visible,select:focus-visible,textarea:focus-visible{outline:var(--focus-ring);outline-offset:0;border-color:var(--color-primary)}input[aria-invalid=true],select[aria-invalid=true],textarea[aria-invalid=true]{border-color:var(--color-error);border-width:2px;background-color:var(--color-error-bg)}[role=button],button{cursor:pointer;font-family:var(--font-sans);font-size:var(--text-base);border-radius:var(--radius);border:none;transition:background-color var(--transition),box-shadow var(--transition);min-height:44px;padding:var(--space-2) var(--space-5);display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2)}.btn-primary{background-color:var(--color-primary);color:var(--color-text-inverse);font-weight:600}.btn-primary:hover{background-color:var(--color-primary-hover)}.btn-primary:active{background-color:var(--color-primary-active)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background-color:transparent;color:var(--color-primary);border:1px solid var(--color-primary);font-weight:600}.btn-secondary:hover{background-color:var(--color-bg-subtle)}.skip-link{position:absolute;top:-100%;left:var(--space-4);z-index:9999;padding:var(--space-3) var(--space-6);background-color:var(--color-primary);color:var(--color-text-inverse);font-weight:600;text-decoration:none;border-radius:0 0 var(--radius) var(--radius);transition:top var(--transition)}.skip-link:focus{top:0;outline:var(--focus-ring);outline-offset:var(--focus-offset)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.field-error{color:var(--color-error);font-size:var(--text-sm);margin-top:var(--space-1);display:flex;align-items:flex-start;gap:var(--space-1)}.alert{padding:var(--space-3) var(--space-4);border-radius:var(--radius);border-left:4px solid;margin-bottom:var(--space-4)}.alert-error{background-color:var(--color-error-bg);border-color:var(--color-error);color:var(--color-error)}.alert-success{background-color:var(--color-success-bg);border-color:var(--color-success);color:var(--color-success)}.container{width:100%;max-width:var(--max-width);margin-inline:auto;padding-inline:var(--space-4)}@media (max-width:320px){.container{padding-inline:var(--space-2)}}