* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
    background: #f4f6fb;
    color: #1f2937;
}
a { color: inherit; text-decoration: none; }
.topbar {
    height: 64px;
    background: #172033;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    box-shadow: 0 2px 14px rgba(0,0,0,.12);
}
.brand {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: .5px;
}
.topbar nav {
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 14px;
}
.topbar nav a {
    opacity: .9;
}
.topbar nav a:hover {
    opacity: 1;
    text-decoration: underline;
}
.user-badge {
    background: rgba(255,255,255,.12);
    padding: 6px 10px;
    border-radius: 999px;
}
.container {
    max-width: 1180px;
    margin: 28px auto;
    padding: 0 20px 48px;
}
.login-box {
    max-width: 420px;
    margin: 80px auto;
}
h1 {
    margin: 0 0 8px;
    font-size: 28px;
}
h2 {
    margin: 0 0 18px;
    font-size: 20px;
}
.muted {
    color: #6b7280;
    margin: 0;
}
.hint {
    color: #6b7280;
    font-size: 13px;
    margin-top: 12px;
}
.notice {
    background: #eef2ff;
    border: 1px solid #c7d2fe;
    color: #3730a3;
    border-radius: 10px;
    padding: 10px 12px;
    margin: 0 0 16px;
    font-size: 14px;
}
.card, .form-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    padding: 22px;
    box-shadow: 0 8px 22px rgba(16, 24, 40, .05);
    margin-bottom: 22px;
}
.page-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
}
label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 8px;
}
input, select {
    width: 100%;
    height: 42px;
    padding: 0 12px;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    outline: none;
    background: #fff;
    color: #111827;
}
input:focus, select:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.grid-form {
    display: grid;
    gap: 16px;
    align-items: end;
}
.grid-form.two { grid-template-columns: 1fr 180px; }
.grid-form.three { grid-template-columns: repeat(3, 1fr) 160px; }
.grid-form.four { grid-template-columns: 1fr 1.4fr 1fr 160px; }
.form-actions {
    display: flex;
    gap: 10px;
    align-items: end;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 16px;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    background: #fff;
    color: #111827;
    cursor: pointer;
    font-weight: 700;
    white-space: nowrap;
}
.btn:hover { background: #f9fafb; }
.btn.primary {
    background: #2563eb;
    color: #fff;
    border-color: #2563eb;
}
.btn.primary:hover { background: #1d4ed8; }
.btn.full { width: 100%; margin-top: 8px; }
.btn.small { min-height: 36px; padding: 0 12px; }
.flash-wrap { margin-bottom: 18px; }
.flash {
    border-radius: 12px;
    padding: 12px 14px;
    margin-bottom: 10px;
    font-weight: 700;
}
.flash.success {
    background: #ecfdf5;
    color: #047857;
    border: 1px solid #a7f3d0;
}
.flash.error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}
.table-wrap {
    overflow-x: auto;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
}
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    min-width: 780px;
}
th {
    text-align: left;
    background: #f9fafb;
    color: #374151;
    padding: 12px;
    border-bottom: 1px solid #e5e7eb;
}
td {
    padding: 12px;
    border-bottom: 1px solid #f0f2f5;
    vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
.wide { min-width: 480px; }
.inline-edit {
    display: grid;
    grid-template-columns: 1.3fr 110px 90px 70px;
    gap: 8px;
}
.inline-edit input,
.inline-edit select {
    height: 36px;
    border-radius: 8px;
}
.tag {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
}
.tag.green { background: #dcfce7; color: #166534; }
.tag.gray { background: #e5e7eb; color: #374151; }
.empty {
    text-align: center;
    color: #6b7280;
    padding: 28px;
}
.alert {
    border-radius: 12px;
    padding: 14px;
    margin-bottom: 16px;
    font-weight: 800;
}
.alert.protected {
    background: #fff7ed;
    color: #c2410c;
    border: 1px solid #fed7aa;
}
.alert.free {
    background: #ecfdf5;
    color: #047857;
    border: 1px solid #a7f3d0;
}
@media (max-width: 900px) {
    .topbar { height: auto; min-height: 64px; flex-direction: column; align-items: flex-start; padding: 16px 20px; gap: 10px; }
    .topbar nav { flex-wrap: wrap; gap: 12px; }
    .page-head { flex-direction: column; align-items: flex-start; }
    .grid-form.two,
    .grid-form.three,
    .grid-form.four { grid-template-columns: 1fr; }
    .inline-edit { grid-template-columns: 1fr; }
}
.form-card.narrow {
    max-width: 460px;
    margin-left: 0;
}
.form-card.narrow label {
    margin-top: 12px;
}
.btn.danger {
    background: #dc2626;
    color: #fff;
    border-color: #dc2626;
}
.btn.danger:hover { background: #b91c1c; }
.inline-delete {
    display: inline-flex;
    margin: 0;
}