* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #283593;
    --primary-dark: #1a237e;
    --primary-light: #3f51b5;
    --secondary: #00acc1;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1e293b;
    --gray: #64748b;
    --light-gray: #e2e8f0;
    --bg: #f8fafc;
    --white: #ffffff;
    --sidebar-width: 280px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--dark);
    line-height: 1.6;
}

.app-container {
    display: flex;
    min-height: 100vh;
}

/* ========== Sidebar ========== */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    box-shadow: 4px 0 10px rgba(0,0,0,0.1);
    z-index: 1000;
}

.sidebar-header {
    padding: 30px 25px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.sidebar-header p {
    font-size: 0.85rem;
    opacity: 0.8;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 25px;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s;
    position: relative;
}

.nav-item:hover {
    background: rgba(255,255,255,0.1);
}

.nav-item.active {
    background: rgba(255,255,255,0.15);
    border-left: 4px solid var(--secondary);
}

.nav-item .icon {
    font-size: 1.2rem;
    margin-right: 12px;
    width: 24px;
}

.nav-item .badge {
    margin-left: auto;
    background: var(--danger);
    color: var(--white);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.nav-item .badge.cloudsu {
    background: var(--warning);
    color: var(--dark);
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-email {
    font-size: 0.75rem;
    opacity: 0.8;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.btn-logout {
    width: 100%;
    padding: 10px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--white);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-logout:hover {
    background: rgba(255,255,255,0.15);
}

/* ========== Main Content ========== */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 30px;
    min-height: 100vh;
}

.page-header {
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 5px;
}

.page-header p {
    color: var(--gray);
    font-size: 1rem;
}

.page-header .badge {
    display: inline-block;
    margin-left: 10px;
    padding: 4px 12px;
    background: var(--warning);
    color: var(--white);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.view {
    display: none;
}

.view.active {
    display: block;
}

/* ========== Stats Grid ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.stat-icon {
    font-size: 2.5rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 12px;
}

.stat-details {
    flex: 1;
}

.stat-label {
    color: var(--gray);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
}

/* ========== Admin Sites ========== */
.sites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
}

.site-card {
    background: var(--white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: all 0.3s;
    border: 2px solid transparent;
}

.site-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: var(--primary);
}

.site-card.has-access {
    border-left: 4px solid var(--success);
}

.site-card.no-access {
    border-left: 4px solid var(--danger);
    opacity: 0.7;
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 15px;
}

.site-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark);
}

.access-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.access-badge.yes {
    background: #d1fae5;
    color: #065f46;
}

.access-badge.no {
    background: #fee2e2;
    color: #991b1b;
}

.site-url {
    color: var(--gray);
    font-size: 0.85rem;
    margin-bottom: 15px;
    word-break: break-all;
}

.site-description {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 15px;
    line-height: 1.5;
}

.site-actions {
    display: flex;
    gap: 10px;
}

.btn-sso {
    flex: 1;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-sso:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(40, 53, 147, 0.4);
}

.btn-sso:disabled {
    background: var(--light-gray);
    color: var(--gray);
    cursor: not-allowed;
    transform: none;
}

/* ========== Messaging ========== */
.messaging-container {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 20px;
    height: calc(100vh - 200px);
}

.conversations-list {
    background: var(--white);
    border-radius: 12px;
    padding: 20px;
    overflow-y: auto;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.conversation-item {
    padding: 15px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: 10px;
    border: 1px solid var(--light-gray);
}

.conversation-item:hover {
    background: var(--bg);
}

.conversation-item.active {
    background: var(--primary);
    color: var(--white);
}

.chat-area {
    background: var(--white);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.no-chat-selected {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray);
}

.no-chat-selected .icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

/* ========== Support Tickets ========== */
.filters {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.filter-btn {
    padding: 10px 20px;
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-btn:hover {
    border-color: var(--primary);
}

.filter-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.tickets-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.ticket-card {
    background: var(--white);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: all 0.3s;
}

.ticket-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .messaging-container {
        grid-template-columns: 1fr;
    }

    .conversations-list {
        display: none;
    }

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

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

/* ========== Loading ========== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--gray);
}

.loading::after {
    content: '...';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

/* ========== Utilities ========== */
.text-center {
    text-align: center;
}

.text-muted {
    color: var(--gray);
}

.mb-20 {
    margin-bottom: 20px;
}

.mt-20 {
    margin-top: 20px;
}

/* ========== Kubernetes ========== */
.k8s-cluster-selector {
    background: var(--white);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.k8s-cluster-selector label {
    font-weight: 600;
    color: var(--dark);
}

.k8s-cluster-selector select {
    flex: 1;
    padding: 10px 15px;
    border: 1px solid var(--light-gray);
    border-radius: 6px;
    font-size: 14px;
    background: var(--white);
    cursor: pointer;
}

.k8s-cluster-selector select:focus {
    outline: none;
    border-color: var(--primary);
}

.btn-refresh {
    padding: 10px 20px;
    background: var(--secondary);
    color: var(--white);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.btn-refresh:hover {
    background: #008c9e;
    transform: translateY(-1px);
}

.k8s-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    background: var(--white);
    border-radius: 8px;
    padding: 15px;
}

.tab-btn {
    padding: 10px 20px;
    background: transparent;
    border: 1px solid var(--light-gray);
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    color: var(--dark);
    transition: all 0.2s;
}

.tab-btn:hover {
    background: var(--bg);
}

.tab-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.k8s-tab-content {
    display: none;
}

.k8s-tab-content.active {
    display: block;
}

.k8s-resource-table {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.k8s-resource-table table {
    width: 100%;
    border-collapse: collapse;
}

.k8s-resource-table th {
    background: var(--bg);
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    color: var(--gray);
}

.k8s-resource-table td {
    padding: 12px 15px;
    border-top: 1px solid var(--light-gray);
    font-size: 14px;
}

.k8s-resource-table tr:hover {
    background: var(--bg);
}

.k8s-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.k8s-status.running {
    background: #d1fae5;
    color: #065f46;
}

.k8s-status.pending {
    background: #fef3c7;
    color: #92400e;
}

.k8s-status.failed {
    background: #fee2e2;
    color: #991b1b;
}

.k8s-status.succeeded {
    background: #dbeafe;
    color: #1e40af;
}

.k8s-action-btn {
    padding: 6px 12px;
    background: var(--primary-light);
    color: var(--white);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    margin-right: 5px;
    transition: all 0.2s;
}

.k8s-action-btn:hover {
    background: var(--primary);
    transform: translateY(-1px);
}

.k8s-action-btn.danger {
    background: var(--danger);
}

.k8s-action-btn.danger:hover {
    background: #dc2626;
}

.k8s-node-card {
    background: var(--white);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.k8s-node-card h3 {
    margin-bottom: 10px;
    color: var(--primary);
}

.k8s-node-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.k8s-node-info-item {
    display: flex;
    flex-direction: column;
}

.k8s-node-info-item label {
    font-size: 12px;
    color: var(--gray);
    margin-bottom: 5px;
}

.k8s-node-info-item span {
    font-weight: 600;
}