:root{color-scheme:light;--bg:#f6f6f4;--card:#fff;--fg:#1c1c1a;--muted:#6b6b66;--line:#d9d9d4;--accent:#2f5d50;--bad:#a8322b}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--bg:#161615;--card:#1f1f1d;--fg:#ecece8;--muted:#9a9a93;--line:#33332f;--accent:#7fbfa9;--bad:#e58a82}}
:root[data-theme=dark]{color-scheme:dark;--bg:#161615;--card:#1f1f1d;--fg:#ecece8;--muted:#9a9a93;--line:#33332f;--accent:#7fbfa9;--bad:#e58a82}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;display:grid;place-items:center;padding:16px;background:var(--bg);color:var(--fg);font:16px/1.5 system-ui,sans-serif}
main{width:100%;max-width:360px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:28px}
main.wide{max-width:760px}
h1{font-size:20px;margin:0 0 20px}
h2{font-size:16px;margin:28px 0 8px}
label{display:block;font-size:14px;color:var(--muted);margin:14px 0 6px}
input{width:100%;padding:10px 12px;font:inherit;color:inherit;background:transparent;border:1px solid var(--line);border-radius:8px}
input:focus{outline:2px solid var(--accent);outline-offset:1px}
button,.button{display:block;width:100%;margin-top:20px;padding:11px;font:inherit;font-weight:600;text-align:center;text-decoration:none;border:0;border-radius:8px;background:var(--accent);color:var(--card);cursor:pointer}
.plain{background:transparent;color:var(--fg);border:1px solid var(--line)}
p{margin:0 0 12px}
a{color:var(--accent)}
.error{color:var(--bad);font-size:14px}
.muted{color:var(--muted);font-size:14px}
.notice{border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:8px;padding:10px 12px;font-size:14px}
.row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 0;border-top:1px solid var(--line)}
.qr{display:block;width:200px;margin:12px auto;border-radius:8px}
.secret{font:18px/1.4 ui-monospace,monospace;letter-spacing:1px;word-break:break-all;padding:12px;border:1px dashed var(--line);border-radius:8px;text-align:center;user-select:all}
.scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:8px 10px 8px 0;border-top:1px solid var(--line);white-space:nowrap;vertical-align:middle}
th{color:var(--muted);font-weight:500;border-top:0}
td form{display:inline}
td button{display:inline;width:auto;margin:0 6px 0 0;padding:4px 10px;font-size:13px;font-weight:500;background:transparent;color:var(--fg);border:1px solid var(--line)}
td button.danger{color:var(--bad)}
.inline{display:flex;gap:8px;align-items:end}
.inline button{width:auto;margin:0;padding:10px 18px}
.theme{position:fixed;top:12px;right:12px;width:auto;margin:0;padding:4px 10px;font-size:18px;line-height:1.2;background:transparent;color:var(--muted);border:1px solid var(--line)}
@media (max-width:480px){main{padding:20px}body{place-items:start center;padding-top:56px}}