:root{color-scheme:dark;--bg:#000000;--surface:rgba(255,255,255,0.05);--text:#ffffff;--muted:rgba(255,255,255,0.6);--dim:rgba(255,255,255,0.3);--accent:#ff3b5c;--ok:#34c759;--err:#ff4d4f;--radius:14px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Inter,sans-serif;font-size:15px;line-height:1.5;min-height:100dvh}a{text-decoration:none}a,button{color:inherit}button{font:inherit;background:none;border:none;padding:0;cursor:pointer}.page{max-width:640px;margin:0 auto;padding:48px 24px;min-height:100dvh;display:flex;flex-direction:column;gap:32px}.card{background:var(--surface);border-radius:var(--radius);padding:24px}.muted{color:var(--muted)}.dim{color:var(--dim)}.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 20px;border-radius:12px;font-weight:600;background:var(--text);color:var(--bg);transition:transform 80ms ease}.btn:active{transform:scale(.98)}