:root{--bg:#f7f7f5;--surface:#fff;--text:#1c1c1a;--muted:#6b6b66;--border:#e2e2dd;--accent:#3b5bdb;--radius:10px;color:var(--text);background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}@media (prefers-color-scheme:dark){:root{--bg:#161615;--surface:#20201e;--text:#ececea;--muted:#9d9d97;--border:#33332f;--accent:#7d97ff}}*{box-sizing:border-box}body{background:var(--bg);margin:0}a{color:var(--accent)}h1{margin:0 0 1rem;font-size:1.6rem}.app{flex-direction:column;min-height:100vh;display:flex}.site-header{border-bottom:1px solid var(--border);background:var(--surface);padding:.75rem 1rem}.brand{color:var(--text);font-weight:700;text-decoration:none}.site-main{width:100%;max-width:960px;margin:0 auto;padding:1.5rem 1rem 3rem}.crumbs{color:var(--muted);margin-bottom:.5rem;font-size:.9rem}.muted{color:var(--muted)}.small{font-size:.85rem}.card-list{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:.75rem;margin:0;padding:0;list-style:none;display:grid}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);height:100%;color:inherit;flex-direction:column;gap:.25rem;padding:1rem;text-decoration:none;display:flex}.card:hover{border-color:var(--accent)}.card-title{font-weight:600}.tool-header{justify-content:space-between;align-items:center;gap:1rem;display:flex}.tool-header h1{margin-bottom:1rem}button{font:inherit;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;padding:.4rem .9rem}button:disabled{opacity:.5;cursor:not-allowed}.placeholder{border:1px dashed var(--border);border-radius:var(--radius);padding:1.5rem}.notice{border-radius:var(--radius);background:color-mix(in srgb, var(--accent) 12%, var(--surface));border:1px solid color-mix(in srgb, var(--accent) 35%, var(--border));padding:.6rem .9rem}:root{--done:#2f9e44}@media (prefers-color-scheme:dark){:root{--done:#51cf66}}button.icon{min-width:2.1rem;padding:.35rem .5rem;line-height:1}button.icon.wide{min-width:2.6rem}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}button.link{color:var(--accent);background:0 0;border:none;padding:0;text-decoration:underline}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.row-gap{flex-wrap:wrap;gap:.5rem;display:flex}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}button.danger{color:#fff;background:#c92a2a;border-color:#c92a2a;font-weight:600}