* { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    background: radial-gradient(1000px 600px at 20% 0%, rgba(84,104,255,0.25), rgba(0,0,0,0) 60%),
                radial-gradient(900px 520px at 90% 10%, rgba(50,211,255,0.18), rgba(0,0,0,0) 55%),
                #0b1020;
    color: #e8ecff;
}

a { color: #9ee7ff; text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1200px; margin: 0 auto; padding: 18px; }

.top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 16px;
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 16px;
    background: rgba(255,255,255,0.04);
    backdrop-filter: blur(10px);
}
.brand { font-weight: 900; letter-spacing: 1px; }
.nav { display: flex; gap: 10px; flex-wrap: wrap; }
.nav a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,0.10);
    background: rgba(0,0,0,0.18);
    color: #e8ecff;
    text-decoration: none;
    font-size: 14px;
    line-height: 1;
}
.nav a:hover { background: rgba(255,255,255,0.06); }

.card {
    margin-top: 14px;
    padding: 14px 16px;
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 16px;
    background: rgba(255,255,255,0.04);
    box-shadow: 0 16px 48px rgba(0,0,0,0.35);
}
.h1 { margin: 0 0 10px; font-size: 18px; letter-spacing: 0.5px; }
.muted { opacity: 0.78; font-size: 13px; }

.table { width: 100%; border-collapse: collapse; margin-top: 10px; }
.table th, .table td {
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: 10px 8px;
    text-align: left;
    vertical-align: top;
}
.table th { font-size: 13px; opacity: 0.85; }
.table tbody tr:hover { background: rgba(255,255,255,0.03); }

.row-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.row-actions form { margin: 0; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255,255,255,0.14);
    background: rgba(255,255,255,0.06);
    color: #e8ecff;
    padding: 8px 12px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    user-select: none;
}
.btn:hover { background: rgba(255,255,255,0.10); }
.btn.primary {
    background: linear-gradient(90deg, #5468ff, #32d3ff);
    color: #081028;
    border: none;
    font-weight: 900;
}
.btn.primary:hover { filter: brightness(1.03); }
.btn.danger { border-color: rgba(255,120,120,0.40); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.form { display: grid; gap: 10px; max-width: 560px; }
.field label { display: block; font-size: 13px; opacity: 0.88; margin-bottom: 6px; }
.field input, .field select, .field textarea {
    width: 100%;
    padding: 10px 10px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.14);
    background: rgba(0,0,0,0.22);
    color: #e8ecff;
    outline: none;
}
.field input:focus, .field select:focus, .field textarea:focus {
    border-color: rgba(50,211,255,0.55);
    box-shadow: 0 0 0 3px rgba(50,211,255,0.12);
}
.field textarea { min-height: 160px; resize: vertical; }

.flash {
    padding: 10px 12px;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.14);
    background: rgba(0,0,0,0.18);
    margin-bottom: 10px;
}
.flash.error { border-color: rgba(255,120,120,0.40); }
.flash.ok { border-color: rgba(120,255,180,0.30); }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 980px) { .grid2 { grid-template-columns: 1fr; } }
@media (max-width: 520px) {
    .wrap { padding: 14px; }
    .btn { width: 100%; }
    .nav a { width: 100%; justify-content: center; }
}