:root {
    --bg-body: #08111f;
    --bg-card: rgba(15, 23, 42, 0.92);
    --bg-soft: rgba(30, 41, 59, 0.82);
    --border-color: rgba(96, 165, 250, 0.18);
    --text-main: #e5eefc;
    --text-sub: #93a8c7;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #10b981;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --shadow-main: 0 24px 60px rgba(2, 6, 23, 0.45);
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --space-xs: 8px;
    --space-sm: 12px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --input-height: 44px;
    --font-main: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-main);
    background:
        radial-gradient(circle at top left, rgba(59, 130, 246, 0.18), transparent 30%),
        radial-gradient(circle at top right, rgba(16, 185, 129, 0.14), transparent 26%),
        var(--bg-body);
    color: var(--text-main);
}

code {
    color: #bfdbfe;
    word-break: break-all;
}

.admin-auth-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.auth-card {
    width: 100%;
    max-width: 460px;
    padding: var(--space-xl);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    box-shadow: var(--shadow-main);
    backdrop-filter: blur(14px);
}

.auth-badge,
.sidebar-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(59, 130, 246, 0.18);
    color: #bfdbfe;
    font-size: 12px;
}

.auth-title,
.sidebar-title,
.panel-title {
    margin: var(--space-md) 0 var(--space-xs);
    font-size: 28px;
    font-weight: 700;
}

.auth-subtitle,
.sidebar-desc,
.panel-subtitle {
    margin: 0 0 var(--space-lg);
    color: var(--text-sub);
    line-height: 1.7;
}

.auth-form,
.source-form-grid {
    display: grid;
    gap: var(--space-md);
}

.form-label {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--text-sub);
    font-size: 14px;
}

.form-input,
.form-textarea {
    width: 100%;
    border: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: var(--radius-md);
    background: rgba(15, 23, 42, 0.75);
    color: var(--text-main);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input {
    height: var(--input-height);
    padding: 0 14px;
}

.form-textarea {
    min-height: 100px;
    padding: 12px 14px;
    resize: vertical;
}

.form-input:focus,
.form-textarea:focus {
    border-color: rgba(59, 130, 246, 0.75);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 42px;
    padding: 0 18px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: transform 0.2s ease, opacity 0.2s ease, background 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #60a5fa);
    color: #fff;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), #3b82f6);
}

.btn-secondary {
    background: rgba(30, 41, 59, 0.96);
    color: var(--text-main);
    border: 1px solid rgba(148, 163, 184, 0.18);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.18);
    color: #fecaca;
    border: 1px solid rgba(239, 68, 68, 0.24);
}

.btn-danger:hover {
    background: rgba(220, 38, 38, 0.22);
}

.btn-block {
    width: 100%;
}

.btn-small {
    height: 34px;
    padding: 0 14px;
    font-size: 13px;
}

.alert {
    padding: 14px 16px;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.alert-error {
    background: rgba(239, 68, 68, 0.14);
    color: #fecaca;
    border: 1px solid rgba(239, 68, 68, 0.24);
}

.alert-success {
    background: rgba(16, 185, 129, 0.14);
    color: #bbf7d0;
    border: 1px solid rgba(16, 185, 129, 0.22);
}

.auth-error {
    color: #fecaca;
    line-height: 1.7;
}

.admin-page-body {
    min-height: 100vh;
    padding: var(--space-lg);
}

.layout-shell {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: var(--space-lg);
}

.sidebar-card,
.panel-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    box-shadow: var(--shadow-main);
    backdrop-filter: blur(14px);
}

.sidebar-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: var(--space-xl) var(--space-lg);
    min-height: calc(100vh - 48px);
}

.sidebar-user-name {
    margin-bottom: var(--space-md);
    font-size: 18px;
    font-weight: 600;
}

.content-panel {
    display: grid;
    gap: var(--space-lg);
}

.panel-card {
    padding: var(--space-lg);
}

.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.source-form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-group-wide {
    grid-column: 1 / -1;
}

.form-group-checkboxes {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding-top: 30px;
}

.checkbox-row {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-main);
}

.form-actions {
    grid-column: 1 / -1;
    display: flex;
    gap: var(--space-sm);
}

.table-wrap {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 1000px;
}

.data-table th,
.data-table td {
    padding: 14px 12px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
    text-align: left;
    vertical-align: top;
}

.data-table th {
    color: #bfdbfe;
    font-weight: 600;
    background: rgba(15, 23, 42, 0.65);
}

.data-table td {
    color: var(--text-main);
}

.url-cell,
.empty-cell {
    color: var(--text-sub);
    word-break: break-all;
}

.table-actions {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.table-actions form {
    margin: 0;
}

@media (max-width: 1200px) {
    .layout-shell {
        grid-template-columns: 1fr;
    }

    .sidebar-card {
        min-height: auto;
    }
}

@media (max-width: 768px) {
    .admin-page-body,
    .admin-auth-body {
        padding: var(--space-md);
    }

    .panel-card,
    .auth-card,
    .sidebar-card {
        padding: var(--space-lg);
    }

    .source-form-grid {
        grid-template-columns: 1fr;
    }

    .form-group-checkboxes,
    .form-actions {
        flex-direction: column;
        align-items: stretch;
    }
}