.admin-panel {
    min-height: 100vh;
    background: var(--bg-color);
}

.admin-header {
    position: sticky;
}

.login-card {
    max-width: 430px;
    text-align: center;
}

.login-mark {
    width: 58px;
    height: 58px;
    margin: 0 auto 18px;
    border-radius: 8px;
    background: var(--brand-gradient);
    color: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    box-shadow: none;
}

.login-card h2 {
    font-size: 1.35rem;
    margin-bottom: 8px;
}

.login-card p {
    color: var(--text-light);
    margin-bottom: 24px;
}

.login-card .form-group {
    text-align: left;
}

.login-submit {
    width: 100%;
}

.admin-hero {
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-elevated);
}

.admin-hero .container {
    min-height: 194px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 520px);
    align-items: center;
    gap: 28px;
    padding-top: 30px;
    padding-bottom: 30px;
}

.admin-hero h2 {
    max-width: 740px;
    margin: 8px 0 10px;
    font-size: clamp(1.8rem, 4vw, 3.15rem);
    line-height: 1.06;
    letter-spacing: 0;
}

.admin-hero p,
.toolbar p,
.import-export-section p,
.sync-section p,
.debug-section p {
    color: var(--text-light);
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.stat-card {
    min-height: 112px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-elevated);
    box-shadow: var(--shadow);
    padding: 18px;
}

.stat-card span {
    color: var(--text-light);
    display: block;
    font-weight: 700;
}

.stat-card strong {
    display: block;
    margin-top: 14px;
    font-size: 2.15rem;
    line-height: 1;
}

.admin-tabs {
    position: sticky;
    top: var(--header-height);
    z-index: 90;
    border-bottom: 1px solid var(--border-color);
    background: var(--header-bg);
    backdrop-filter: blur(14px);
}

.tab-nav {
    display: flex;
    list-style: none;
    gap: 8px;
    margin: 0;
    padding: 12px 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.tab-nav::-webkit-scrollbar {
    display: none;
}

.tab-nav li {
    min-height: 40px;
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0 13px;
    border: 1px solid transparent;
    border-radius: 8px;
    color: var(--text-light);
    cursor: pointer;
    font-weight: 800;
    transition: background 0.18s, color 0.18s, border-color 0.18s;
}

.tab-nav li:hover {
    background: var(--bg-soft);
    color: var(--text-color);
}

.tab-nav li.active {
    background: var(--active-bg);
    border-color: var(--active-border);
    color: var(--text-color);
}

.admin-main {
    padding-top: 24px;
    padding-bottom: 48px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.panel-shell,
.import-export-section,
.sync-section,
.settings-section {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-elevated);
    box-shadow: var(--shadow);
}

.panel-shell {
    padding: 18px;
}

.toolbar {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
}

.toolbar h3,
.import-export-section h3,
.sync-section h3,
.settings-section h3,
.debug-section h3 {
    margin-top: 5px;
    margin-bottom: 6px;
    font-size: 1.15rem;
}

.toolbar-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    flex-wrap: wrap;
}

.admin-search {
    width: min(420px, 32vw);
}

.admin-filter {
    min-height: 40px;
    min-width: 150px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--input-bg);
    color: var(--text-color);
    padding: 0 12px;
    outline: none;
}

.field-with-action {
    display: flex;
    gap: 10px;
}

.field-with-action input {
    flex: 1;
}

.site-list,
.category-list {
    display: grid;
    gap: 10px;
    padding: 0;
}

.site-item,
.category-item {
    width: 100%;
    min-width: 0;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 12px;
    transition: background 0.18s, border-color 0.18s, transform 0.18s;
}

.site-item:hover,
.category-item:hover {
    background: var(--card-hover);
    border-color: var(--border-strong);
}

.site-info,
.category-info {
    min-width: 0;
    max-width: 100%;
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
}

.site-info > i,
.site-info img,
.category-info > i:not(.drag-handle) {
    width: 38px;
    height: 38px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--icon-bg);
    color: var(--primary-color);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    object-fit: contain;
    flex: 0 0 auto;
}

.site-info img {
    padding: 7px;
}

.site-details {
    min-width: 0;
    overflow: hidden;
    flex: 1;
}

.site-details h4,
.category-info h4 {
    max-width: 100%;
    margin: 0 0 4px;
    font-size: 0.96rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.site-details p,
.category-info p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.8rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.site-details small,
.category-info small {
    color: var(--text-light);
}

.site-actions {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 8px;
}

.site-actions .btn {
    width: 38px;
    min-height: 38px;
    padding: 0;
}

.site-item.dragging,
.category-item.dragging {
    opacity: 0.5;
}

.site-item.drag-over,
.category-item.drag-over,
.category-item.drag-over-top,
.category-item.drag-over-bottom {
    border-color: var(--primary-color);
    background: var(--active-bg);
}

.site-item,
.category-item {
    cursor: default;
    user-select: none;
}

.drag-handle {
    color: var(--text-muted);
    cursor: move;
    flex: 0 0 auto;
    margin-right: 4px;
}

.category-item:hover .drag-handle {
    color: var(--primary-color);
}

.child-prefix {
    margin-right: 2px;
    color: var(--text-muted);
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.import-export-section,
.sync-section,
.settings-section {
    padding: 22px;
}

.settings-section {
    max-width: 560px;
}

#importFile {
    width: 100%;
    margin: 12px 0 16px;
    border: 1px dashed var(--border-strong);
    border-radius: 8px;
    background: var(--input-bg);
    color: var(--text-light);
    padding: 16px;
}

.stack-actions,
.sync-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-top: 16px;
}

.stack-actions.horizontal {
    flex-direction: row;
    flex-wrap: wrap;
}

.inline-status {
    margin-top: 12px;
    min-height: 22px;
    color: var(--text-light);
}

.sync-status {
    display: none;
    margin-top: 16px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--input-bg);
    color: var(--text-light);
}

.sync-status.success {
    display: block;
    border-color: color-mix(in srgb, var(--success-color) 42%, transparent);
    color: var(--success-color);
}

.sync-status.error {
    display: block;
    border-color: color-mix(in srgb, var(--danger-color) 44%, transparent);
    color: var(--danger-color);
}

.debug-output {
    display: none;
    max-height: 520px;
    overflow: auto;
    margin-top: 18px;
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-soft);
    color: var(--text-color);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.82rem;
    white-space: pre-wrap;
}

.import-save-modal {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--overlay-bg);
    backdrop-filter: blur(8px);
}

.import-save-card {
    width: min(500px, 100%);
    border: 1px solid var(--border-strong);
    border-radius: 8px;
    background: var(--bg-elevated);
    color: var(--text-color);
    padding: 28px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.import-save-card h2 {
    margin-bottom: 14px;
    color: var(--info-color);
}

.import-save-card.success h2 {
    color: var(--success-color);
}

.import-save-card.error h2 {
    color: var(--danger-color);
}

.import-save-card p {
    margin-bottom: 20px;
    color: var(--text-light);
    font-size: 1rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid var(--border-color);
}

#loginModal .modal-content {
    max-width: 430px;
}

@media (max-width: 1040px) {
    .admin-hero .container {
        grid-template-columns: 1fr;
    }

    .admin-stats {
        max-width: 620px;
    }

    .toolbar {
        align-items: stretch;
        flex-direction: column;
    }

    .toolbar-actions {
        justify-content: flex-start;
    }

    .admin-search {
        width: min(520px, 100%);
    }
}

@media (max-width: 780px) {
    .admin-hero .container {
        min-height: 0;
    }

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

    .site-item,
    .category-item {
        align-items: stretch;
        flex-direction: column;
    }

    .site-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .admin-filter,
    .admin-search,
    .toolbar-actions .btn {
        width: 100%;
    }

    .stack-actions.horizontal {
        flex-direction: column;
    }

    .stack-actions.horizontal .btn,
    .sync-actions .btn {
        width: 100%;
    }

    .field-with-action {
        flex-direction: column;
    }
}

@media (max-width: 540px) {
    .admin-tabs {
        top: 118px;
    }

    .admin-hero h2 {
        font-size: 1.9rem;
    }

    .stat-card {
        min-height: 86px;
    }
}