:root {
    --bg: #0c1220;
    --card: #141c2e;
    --line: #2a3650;
    --gold: #e8c547;
    --text: #eef3f8;
    --muted: #9aa8b8;
    --danger: #ff5d5d;
    --ok: #2ee59d;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, sans-serif;
    background: linear-gradient(180deg, #0c1220, #111827);
    color: var(--text);
    min-height: 100vh;
}
a { color: var(--gold); }
.wrap { max-width: 1100px; margin: 0 auto; padding: 28px 20px 60px; }
.top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}
h1 { margin: 0; font-size: 28px; }
.muted { color: var(--muted); }
.nav a, .btn {
    display: inline-block;
    background: var(--gold);
    color: #1a1403;
    text-decoration: none;
    border: 0;
    border-radius: 8px;
    padding: 10px 14px;
    font-weight: 700;
    cursor: pointer;
}
.btn.ghost, .nav a.ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--line);
}
.btn.danger { background: var(--danger); color: #fff; }
.grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 18px; }
.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 20px;
    margin-bottom: 18px;
}
label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 6px; }
input[type=text], input[type=url], input[type=password], input[type=number], input[type=color] {
    width: 100%;
    background: #0d1422;
    border: 1px solid var(--line);
    color: var(--text);
    border-radius: 8px;
    padding: 10px 12px;
}
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.flash { padding: 12px 14px; border-radius: 8px; margin-bottom: 16px; }
.flash.ok { background: rgba(46,229,157,0.12); color: var(--ok); }
.flash.err { background: rgba(255,93,93,0.12); color: #ffb4b4; }
.sponsors { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
.sponsor {
    background: #0d1422;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 10px;
    text-align: center;
}
.sponsor img { height: 64px; max-width: 100%; object-fit: contain; background: #fff; border-radius: 6px; padding: 6px; }
.preview { max-height: 80px; max-width: 180px; object-fit: contain; background: #fff; padding: 6px; border-radius: 8px; }
.login {
    max-width: 380px;
    margin: 12vh auto;
}
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }