:root{--bg:#faf8f3;--fg:#1d2730;--muted:#55616b;--accent:#1f5f7a;--card:#fff;--line:#d9d4c7;--btn:#1f5f7a;--btnfg:#fff;--warn:#8a5a00}
@media (prefers-color-scheme:dark){:root{--bg:#12181d;--fg:#e8e6df;--muted:#a3adb5;--accent:#7cc4e0;--card:#1a232a;--line:#33414b;--btn:#7cc4e0;--btnfg:#0b1216;--warn:#f2c14e}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:1.0625rem/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.wrap{max-width:42rem;margin:0 auto;padding:0 1rem}
header{padding:2.5rem 0 1rem}
h1{font-size:2.1rem;margin:.5rem 0;line-height:1.2}
h2{font-size:1.3rem;margin:0 0 .5rem}
a{color:var(--accent)}
.lead{font-size:1.2rem;color:var(--muted)}
.motif{width:100%;height:auto;max-height:110px;color:var(--accent);margin:1rem 0}
.notice{display:inline-block;border:1px solid var(--warn);color:var(--warn);border-radius:999px;padding:.2rem .9rem;font-weight:600;font-size:.95rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:1.25rem;margin:1.5rem 0}
label{display:block;font-weight:600;margin:.9rem 0 .25rem}
input[type=text],input[type=email]{width:100%;font:inherit;padding:.6rem;border:1px solid var(--muted);border-radius:8px;background:var(--bg);color:var(--fg)}
.check{display:flex;gap:.6rem;align-items:flex-start;margin:1rem 0}
.check input{margin-top:.4rem;width:1.1rem;height:1.1rem}
.check label{margin:0;font-weight:400}
button{font:inherit;font-weight:600;background:var(--btn);color:var(--btnfg);border:0;border-radius:8px;padding:.7rem 1.4rem;cursor:pointer}
button:disabled{opacity:.6}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
#result{margin-top:1rem;font-weight:600}
.hint{margin:.25rem 0 0;font-size:.9rem;color:var(--muted)}
#result.err{color:#c0392b}
@media (prefers-color-scheme:dark){#result.err{color:#ff8a7a}}
footer{border-top:1px solid var(--line);margin-top:2rem;padding:1.5rem 0 3rem;color:var(--muted);font-size:.95rem}
footer ul{list-style:none;padding:0;margin:0 0 .75rem;display:flex;gap:1.2rem;flex-wrap:wrap}
@media (max-width:480px){h1{font-size:1.7rem}}