:root{color-scheme:light dark;--background:#f7f8fa;--surface:#fff;--ink:#202124;--muted:#5f6368;--border:#dadce0;--accent:#335dff;--error:#a51d2d;--soft:#eef2ff;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:16px}
@media(prefers-color-scheme:dark){:root{--background:#161719;--surface:#202124;--ink:#f1f3f4;--muted:#bdc1c6;--border:#55585e;--accent:#a8baff;--error:#ffadb5;--soft:#292f43}}
*{box-sizing:border-box}body{margin:0;background:var(--background);color:var(--ink);line-height:1.5;padding:max(24px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) max(24px,env(safe-area-inset-bottom));min-height:100dvh}
main{max-width:440px;margin:clamp(12px,7vh,80px) auto}.wide{max-width:960px;margin:24px auto}.brand{font-size:15px;font-weight:500;display:flex;align-items:center;gap:12px;margin-bottom:24px}.mark{display:grid;place-items:center;width:36px;height:36px;border-radius:12px;background:var(--accent);color:var(--surface);font-weight:500}
.card{padding:28px;background:var(--surface);border:1px solid var(--border);border-radius:20px;box-shadow:0 12px 36px #00000008}h1{font-size:26px;line-height:1.2;font-weight:500;margin:0 0 12px}h2{font-size:20px;font-weight:500;margin:0 0 16px}h3{font-size:16px;font-weight:500;margin:20px 0 8px}p{margin:12px 0}.muted,small{color:var(--muted)}a{color:var(--accent);text-underline-offset:3px}form{display:grid;gap:16px;margin:20px 0}label{display:grid;gap:7px;font-size:14px;font-weight:500}input,select,textarea{width:100%;font:inherit;font-size:16px;color:var(--ink);background:var(--surface);padding:12px;border:1px solid var(--border);border-radius:10px;min-width:0}input:focus-visible,button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:3px}button,.button{font:inherit;font-weight:500;min-height:44px;border-radius:10px;padding:11px 16px;border:1px solid var(--border);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;background:var(--surface);color:var(--ink)}button.primary,.button.primary{background:var(--accent);border-color:var(--accent);color:var(--surface)}button:disabled{opacity:.65;cursor:wait}.password{display:flex;align-items:stretch;gap:8px}.password input{flex:1}.password button{font-size:13px;flex-shrink:0}.error{border:1px solid var(--error);color:var(--error);padding:12px;border-radius:10px;margin:16px 0}.notice{background:var(--soft);padding:14px;border-radius:10px}.footer{text-align:center;font-size:13px;margin-top:20px}.grid{display:grid;gap:18px}.row{padding:16px 0;border-bottom:1px solid var(--border)}.row:last-child{border:0}.row form{margin:12px 0 0}.actions{display:flex;flex-wrap:wrap;gap:10px}.actions form{margin:0}nav{display:flex;flex-wrap:wrap;gap:16px;margin:18px 0 24px}code,pre{font-family:ui-monospace,monospace;overflow-wrap:anywhere}pre{white-space:pre-wrap;max-height:300px;overflow:auto}.codes{display:grid;gap:10px;list-style:none;padding:0;font-size:12px}.codes li{padding:10px;border:1px solid var(--border);border-radius:8px}details{margin:12px 0}.badge{font-size:12px;color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
@media(min-width:760px){.grid{grid-template-columns:1fr 1fr}.grid .full{grid-column:1/-1}}
@media(max-width:390px){.card{padding:20px}h1{font-size:24px}.password{flex-wrap:wrap}.password button{width:100%}}
@media(prefers-reduced-motion:no-preference){button{transition:opacity .15s ease}}