*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--color-bg:#fff;--color-surface:#f5f5f5;--color-border:#d0d0d0;--color-text:#1a1a1a;--color-text-muted:#555;--color-primary:#1a6b3c;--color-primary-hover:#145530;--color-primary-text:#fff;--color-accent:#2d9e6b;--color-card:#fff;--color-card-face:#fff;--color-card-selected:#e6f4ed;--color-card-border-selected:#1a6b3c;--color-danger:#b91c1c;--color-success:#166534;--radius:.5rem;--radius-lg:1rem;--shadow:0 1px 3px #0000001f;--shadow-md:0 4px 12px #0000001a;--font-sans:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"Courier New", Courier, monospace}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--color-bg:#0d1117;--color-surface:#161b22;--color-border:#30363d;--color-text:#e6edf3;--color-text-muted:#8b949e;--color-primary:#3fb68b;--color-primary-hover:#2d9e6b;--color-primary-text:#0d1117;--color-card:#161b22;--color-card-selected:#1a2d24;--color-card-border-selected:#3fb68b;--color-danger:#f85149;--color-success:#3fb68b;--shadow:0 1px 3px #0006;--shadow-md:0 4px 12px #0000004d}}[data-theme=dark]{--color-bg:#0d1117;--color-surface:#161b22;--color-border:#30363d;--color-text:#e6edf3;--color-text-muted:#8b949e;--color-primary:#3fb68b;--color-primary-hover:#2d9e6b;--color-primary-text:#0d1117;--color-card:#161b22;--color-card-face:#21262d;--color-card-selected:#1c3a2a;--color-card-border-selected:#3fb68b;--color-danger:#f85149;--color-success:#3fb68b;--shadow:0 1px 3px #0006;--shadow-md:0 4px 12px #0000004d}html{scroll-behavior:smooth;font-size:100%}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);min-height:100dvh;font-size:1rem;line-height:1.6;overflow-x:hidden}.skip-link{background:var(--color-primary);color:var(--color-primary-text);border-radius:var(--radius);z-index:100;padding:.5rem 1rem;font-weight:600;text-decoration:none;transition:top .2s;position:absolute;top:-3rem;left:1rem}.skip-link:focus{top:1rem}:focus-visible{outline:3px solid var(--color-primary);outline-offset:3px;border-radius:2px}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}h1{font-size:clamp(1.75rem,4vw,2.5rem);font-weight:700;line-height:1.2}h2{font-size:clamp(1.25rem,3vw,1.75rem);font-weight:600;line-height:1.3}h3{font-size:1.125rem;font-weight:600}a{color:var(--color-primary);text-decoration:underline}a:hover{color:var(--color-primary-hover)}.btn{border-radius:var(--radius);cursor:pointer;border:none;align-items:center;gap:.5rem;min-height:2.75rem;padding:.625rem 1.25rem;font-family:inherit;font-size:1rem;font-weight:600;text-decoration:none;transition:background .15s,transform .1s;display:inline-flex}.btn:active{transform:scale(.98)}.btn-primary{background:var(--color-primary);color:var(--color-primary-text)}.btn-primary:hover{background:var(--color-primary-hover);color:var(--color-primary-text);text-decoration:none}.btn-secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-border);text-decoration:none}.btn-danger{background:var(--color-danger);color:#fff}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.container{width:100%;max-width:60rem;margin:0 auto;padding:0 1rem}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}