:root{--c:#5b3a6e;--t:#222;--m:#666;--b:#eee}*{box-sizing:border-box}body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--t);background:#fafafa}
header,footer{background:#fff;border-bottom:1px solid var(--b)}footer{border-top:1px solid var(--b);border-bottom:0;margin-top:3rem;font-size:.9rem;color:var(--m)}
.w{max-width:780px;margin:0 auto;padding:1rem 1.25rem}header .w{display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between}
header a.logo{font-weight:700;color:var(--c);text-decoration:none}nav a{margin-left:1rem;color:var(--t);text-decoration:none}nav a:hover{color:var(--c)}
h1{color:var(--c);line-height:1.2}h2{margin-top:2rem;font-size:1.2rem}.meta{color:var(--m);font-size:.9rem}
.card{background:#fff;border:1px solid var(--b);border-radius:12px;padding:1.25rem;margin:1rem 0}
button,.btn{display:inline-block;background:var(--c);color:#fff;border:0;border-radius:8px;padding:.7rem 1.1rem;font-size:1rem;cursor:pointer;text-decoration:none;margin:.25rem .25rem .25rem 0}
button.sec{background:#fff;color:var(--c);border:1px solid var(--c)}button.danger{background:#b3261e}button:disabled{opacity:.5;cursor:not-allowed}
input{font-size:1rem;padding:.5rem;border:1px solid #ccc;border-radius:6px}.hide{display:none}.ok{color:#1b6e2e}.err{color:#b3261e}