:root { --c:#0ea5e9; --bg:#f6f7fb; --ink:#111827; --muted:#6b7280; }
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;background:var(--bg);color:var(--ink)}
.wrap{max-width:900px;margin:0 auto;padding:20px}
.top{background:white;border-bottom:1px solid #e5e7eb}
.top .wrap{display:flex;align-items:center;justify-content:space-between}
.top a{color:var(--c);text-decoration:none;font-weight:600}
.card{background:white;border:1px solid #e5e7eb;border-radius:14px;padding:18px;box-shadow:0 2px 10px rgba(0,0,0,.04)}
h1{margin:0;font-size:20px}
h2{margin:0 0 12px 0}
form{display:grid;gap:10px}
input,select,textarea{width:100%;padding:10px;border:1px solid #d1d5db;border-radius:10px;font-size:14px}
button{padding:12px 14px;border-radius:12px;border:none;background:var(--c);color:white;font-weight:700;cursor:pointer}
.small{font-size:12px;color:var(--muted)}
.msg{margin:10px 0 0 0;color:var(--muted)}
.badge{display:inline-block;padding:4px 10px;border-radius:999px;background:#eef2ff}