:root {
    --admin-bg: #f4f5f7;
    --admin-card: #ffffff;
    --admin-text: #111827;
    --admin-muted: #6b7280;
    --admin-border: #e5e7eb;

    --admin-accent: #111827;
    --admin-accent-hover: #1f2937;

    --admin-danger: #b91c1c;
    --admin-success: #15803d;

    --admin-warning-bg: #fff7ed;
    --admin-danger-bg: #fef2f2;
    --admin-success-bg: #ecfdf5;
}

* {
    box-sizing: border-box;
}

body.admin-body {
    margin: 0;
    min-height: 100vh;
    font-family: Arial, sans-serif;
    background: var(--admin-bg);
    color: var(--admin-text);
}

.admin-login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;

    background:
        radial-gradient(circle at top left, #e5e7eb 0, transparent 32%),
        linear-gradient(135deg, #f9fafb 0%, var(--admin-bg) 100%);
}

.admin-login-shell {
    width: 100%;
    max-width: 420px;
}

.admin-brand {
    text-align: center;
    margin-bottom: 22px;
}

.admin-brand-mark {
    width: 54px;
    height: 54px;

    margin: 0 auto 12px;

    border-radius: 16px;

    background: var(--admin-accent);
    color: #fff;

    display: flex;
    align-items: center;
    justify-content: center;

    font-weight: 800;
    letter-spacing: .04em;
}

.admin-brand h1 {
    margin: 0;
    font-size: 26px;
}

.admin-brand p {
    margin: 8px 0 0;
    color: var(--admin-muted);
    font-size: 14px;
}

.admin-card {
    background: var(--admin-card);
    border: 1px solid var(--admin-border);

    border-radius: 22px;

    padding: 28px;

    box-shadow: 0 18px 50px rgba(15, 23, 42, .08);
}

.admin-alert {
    margin-bottom: 16px;

    padding: 12px 14px;

    border-radius: 12px;

    font-size: 14px;
    line-height: 1.45;
}

.admin-alert-success {
    color: var(--admin-success);
    background: var(--admin-success-bg);
    border: 1px solid #bbf7d0;
}

.admin-alert-error {
    color: var(--admin-danger);
    background: var(--admin-danger-bg);
    border: 1px solid #fecaca;
}

.admin-label {
    display: block;

    margin: 16px 0 7px;

    font-size: 14px;
    font-weight: 700;
}

.admin-input {
    width: 100%;

    border: 1px solid var(--admin-border);

    background: #fff;

    border-radius: 13px;

    padding: 13px 14px;

    font-size: 15px;

    outline: none;
}

.admin-input:focus {
    border-color: var(--admin-accent);

    box-shadow: 0 0 0 4px rgba(17, 24, 39, .08);
}

.admin-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    gap: 8px;

    border: 0;

    border-radius: 14px;

    padding: 13px 18px;

    background: var(--admin-accent);

    color: #fff;

    font-size: 15px;
    font-weight: 800;

    text-decoration: none;

    cursor: pointer;

    transition: .15s ease;
}

.admin-btn:hover {
    background: var(--admin-accent-hover);
}

.admin-btn-full {
    width: 100%;
}

.admin-btn-secondary {
    background: #374151;
}

.admin-btn-danger {
    background: var(--admin-danger);
}

.admin-btn-small {
    padding: 8px 12px;
    border-radius: 10px;
    font-size: 13px;
}

.admin-hint {
    margin-top: 18px;

    text-align: center;

    color: var(--admin-muted);

    font-size: 13px;
    line-height: 1.45;
}

.admin-footer-note {
    margin-top: 18px;

    text-align: center;

    color: #9ca3af;

    font-size: 12px;
}

.admin-shell {
    min-height: 100vh;
    padding: 32px;
}

.admin-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;

    margin-bottom: 24px;
}

.admin-title h1 {
    margin: 0;
    font-size: 28px;
}

.admin-title p {
    margin: 6px 0 0;

    color: var(--admin-muted);

    font-size: 14px;
}

.admin-grid {
    display: grid;
    grid-template-columns: 360px 1fr;

    gap: 24px;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 13px 12px;

    border-bottom: 1px solid var(--admin-border);

    text-align: left;

    font-size: 14px;
}

.admin-table th {
    color: var(--admin-muted);

    font-size: 12px;

    text-transform: uppercase;

    letter-spacing: .04em;
}

.admin-code-editor {
    width: 100%;
    min-height: 70vh;
    padding: 14px;
    border: 1px solid #dcdcdc;
    border-radius: 12px;
    background: #fff;
    color: #111;
    font-family: Consolas, Monaco, "Courier New", monospace;
    font-size: 14px;
    line-height: 1.5;
    resize: vertical;
    white-space: pre;
    overflow: auto;
}

.admin-file-link {
    color: var(--admin-text);

    font-weight: 700;

    text-decoration: none;
}

.admin-file-link:hover {
    text-decoration: underline;
}

.admin-muted {
    color: var(--admin-muted);
}

.admin-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

@media (max-width: 860px) {
    .admin-shell {
        padding: 18px;
    }

    .admin-grid {
        grid-template-columns: 1fr;
    }

    .admin-topbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }
}

/* Admin layout */

.admin-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    min-height: 100vh;
}

.admin-sidebar {
    background: var(--admin-accent);
    color: #fff;
    padding: 24px 18px;
}

.admin-logo {
    margin-bottom: 28px;
    padding: 0 10px;

    font-size: 20px;
    font-weight: 800;
}

.admin-sidebar-section {
    margin-bottom: 28px;
}

.admin-sidebar-title {
    margin: 0 0 10px;
    padding: 0 10px;

    color: #9ca3af;

    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .08em;
}

.admin-sidebar-link {
    display: block;

    margin-bottom: 4px;
    padding: 10px 12px;

    border-radius: 12px;

    color: #e5e7eb;

    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
}

.admin-sidebar-link:hover,
.admin-sidebar-link.active {
    background: var(--admin-accent-hover);
    color: #fff;
}

.admin-sidebar-link.muted {
    color: #9ca3af;
}

.admin-main {
    padding: 32px;
    min-width: 0;
}

.admin-main-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;

    gap: 20px;

    margin-bottom: 24px;
}

.admin-main-header h1 {
    margin: 0;
    font-size: 28px;
}

.admin-main-header p {
    margin: 6px 0 0;

    color: var(--admin-muted);
    font-size: 14px;
}

/* Compact toolbar */

.admin-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;

    margin-bottom: 18px;
}

/* Dropdown actions */

.admin-dropdown {
    position: relative;
    display: inline-block;
}

.admin-dropdown-menu {
    display: none;

    position: absolute;
    right: 0;
    z-index: 20;

    min-width: 160px;

    padding: 8px;

    background: #fff;

    border: 1px solid var(--admin-border);
    border-radius: 14px;

    box-shadow: 0 18px 40px rgba(15, 23, 42, .14);
}

.admin-dropdown.open .admin-dropdown-menu {
    display: block;
}

.admin-dropdown-menu a,
.admin-dropdown-menu button {
    display: block;

    width: 100%;

    padding: 9px 10px;

    border: 0;
    border-radius: 10px;

    background: transparent;
    color: var(--admin-text);

    text-align: left;
    text-decoration: none;

    font-size: 14px;
    font-weight: 700;

    cursor: pointer;
}

.admin-dropdown-menu a:hover,
.admin-dropdown-menu button:hover {
    background: var(--admin-bg);
}

.admin-dropdown-menu .danger {
    color: var(--admin-danger);
}

.admin-inline-form {
    margin: 0;
}

.admin-filebar {
    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 16px;

    margin: 18px 0 20px;
}

.admin-current-folder {
    font-size: 14px;
    color: var(--admin-muted);
}

.admin-current-folder strong {
    color: var(--admin-text);
}

.admin-filebar-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.admin-statusbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;

    margin-bottom: 18px;
    padding: 14px 16px;

    border: 1px solid var(--admin-border);
    border-radius: 16px;

    background: #f9fafb;
}

.admin-statusbar-info {
    color: var(--admin-muted);
    font-size: 14px;
}

.admin-current-folder {
    color: var(--admin-muted);
    font-size: 14px;
}

.admin-current-folder strong {
    color: var(--admin-text);
}

.admin-filebar {
    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 16px;

    margin-bottom: 20px;
    padding: 14px 16px;

    border: 1px solid var(--admin-border);
    border-radius: 16px;

    background: #ffffff;
}

.admin-perm-ok {
    color: var(--admin-success);
    font-weight: 800;
}

.admin-perm-locked {
    color: var(--admin-danger);
    font-weight: 800;
}


.admin-pagination {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 16px;
}

.admin-pagination a.admin-btn,
.admin-pagination-current {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-width: 26px;
    height: 26px;
    padding: 0 8px;

    border-radius: 8px;
    border: 1px solid var(--admin-accent);

    font-size: 12px;
    line-height: 1;
    box-sizing: border-box;
    text-decoration: none;
}

.admin-pagination a.admin-btn {
    background: var(--admin-accent);
    color: #fff;

    font-weight: 500;
}

.admin-pagination-current {
    background: #fff;
    color: var(--admin-accent);
    font-weight: 700;
}

.admin-sort-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;

    color: var(--admin-text);
    text-decoration: none;

    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;

    transition: color 0.15s ease;
}

.admin-sort-link:hover {
    color: var(--admin-accent);
}

.admin-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.admin-btn-unsaved {
    opacity: 0.72;
}

.admin-btn-unsaved:hover {
    opacity: 1;
}

@media (max-width: 720px) {
    .admin-filebar {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Responsive */

@media (max-width: 860px) {
    .admin-layout {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        padding: 18px;
    }

    .admin-main {
        padding: 18px;
    }

    .admin-main-header {
        flex-direction: column;
        align-items: flex-start;
    }
}