:root{--bg:#0f1c24;--bg-elev:#162832;--panel:#1b3340;--ink:#e8f1f4;--muted:#9bb4bf;--accent:#2bb3a3;--accent-2:#e2b04a;--danger:#e07a5f;--line:rgba(232,241,244,0.12);--font-display:"Fraunces","Iowan Old Style","Palatino Linotype",serif;--font-body:"IBM Plex Sans JP","Hiragino Sans","Noto Sans JP",sans-serif}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:radial-gradient(1200px 600px at 10% -10%,rgba(43,179,163,.18),transparent 55%),radial-gradient(900px 500px at 100% 0,rgba(226,176,74,.12),transparent 50%),var(--bg);color:var(--ink);font-family:var(--font-body)}a{color:var(--accent)}button,input{font:inherit}.shell{max-width:780px;margin:0 auto;padding:1.25rem 1rem 3rem}.topbar{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.25rem}.brand{font-family:var(--font-display);font-size:1.45rem;letter-spacing:.02em}.panel{background:color-mix(in srgb,var(--bg-elev) 88%,transparent);border:1px solid var(--line);padding:1.25rem}.panel h1,.panel h2{font-family:var(--font-display);font-weight:550;margin:0 0 .75rem}.muted{color:var(--muted)}.stack{display:grid;grid-gap:.85rem;gap:.85rem}.row{display:flex;gap:.75rem;flex-wrap:wrap;align-items:center}label{display:grid;grid-gap:.35rem;gap:.35rem;font-size:.9rem;color:var(--muted)}input[type=file]{background:#0c161c;color:var(--ink);border:1px solid var(--line);padding:.65rem .75rem}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid transparent;background:var(--accent);color:#06251f;padding:.65rem 1rem;cursor:pointer;font-weight:600;text-decoration:none;display:inline-block}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.secondary{background:transparent;border-color:var(--line);color:var(--ink)}.card{border:1px solid var(--line);background:#12232c;padding:.85rem}.card h3{margin:0 0 .4rem;font-size:1rem}.badge{display:inline-block;font-size:.75rem;padding:.15rem .45rem;border:1px solid var(--line);color:var(--accent-2);margin-right:.35rem}