*{box-sizing:border-box} body{font-family:system-ui,Segoe UI,Roboto,Arial;margin:0;background:#f6f7fb;color:#111}
.container{max-width:980px;margin:0 auto;padding:18px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.brand{font-weight:700}
nav a{margin-right:12px;color:#0b57d0;text-decoration:none}
nav a:hover{text-decoration:underline}
.card{background:#fff;border:1px solid #e7e7ef;border-radius:12px;padding:16px;box-shadow:0 4px 18px rgba(0,0,0,.04)}
label{display:block;margin:10px 0 6px;font-size:.92rem}
input,select,button{width:100%;padding:10px;border:1px solid #d8d8e3;border-radius:10px;font-size:1rem}
button{margin-top:12px;cursor:pointer;font-weight:600}
.inline{display:inline}
.inline button{width:auto;padding:8px 12px;margin-top:0}
.alert{background:#fff3cd;border:1px solid #ffe69c;padding:10px;border-radius:10px;margin:10px 0}
.muted{color:#666}
.row{display:flex;gap:12px;flex-wrap:wrap}
.col{flex:1;min-width:220px}
table{width:100%;border-collapse:collapse;margin-top:10px}
th,td{border-bottom:1px solid #eee;padding:10px;text-align:left}
code{background:#f2f2f8;padding:2px 6px;border-radius:6px}
.footer{margin-top:14px;color:#777;font-size:.9rem;text-align:center}
.btn-link{display:inline-block;margin-left:10px;margin-top:10px}