/* Neutron Control Panel - Stylesheet */

:root {
    --bg-dark: #0d1117;
    --bg-card: #161b22;
    --bg-hover: #21262d;
    --border: #30363d;
    --text: #c9d1d9;
    --text-muted: #8b949e;
    --primary: #58a6ff;
    --primary-hover: #79b8ff;
    --success: #3fb950;
    --warning: #d29922;
    --danger: #f85149;
    --card-bg: #161b22;
    --sidebar-width: 240px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    line-height: 1.5;
    display: flex;
    min-height: 100vh;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    color: var(--primary-hover);
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.sidebar-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: #fff;
    margin: 0;
}

.sidebar-header .version {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-section {
    padding: 1rem 0;
}

.nav-label {
    padding: 0.5rem 1.5rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--text);
    transition: background 0.15s;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: #fff;
}

.nav-item.active {
    background: var(--bg-hover);
    border-left: 3px solid var(--primary);
    color: #fff;
}

.nav-item .icon {
    font-size: 0.9rem;
    opacity: 0.7;
}

.sidebar-footer {
    margin-top: auto;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
}

.tenant-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.tenant-id {
    font-weight: 600;
}

.badge {
    font-size: 0.65rem;
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
    text-transform: uppercase;
}

.badge.admin {
    background: var(--primary);
    color: #fff;
}

.logout-btn {
    display: block;
    padding: 0.5rem 1rem;
    background: var(--bg-hover);
    border-radius: 4px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.logout-btn:hover {
    background: var(--danger);
    color: #fff;
}

/* Main Content */
.content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem;
    min-height: 100vh;
}

.content.full-width {
    margin-left: 0;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.last-updated {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-hover);
    color: var(--text);
    cursor: pointer;
    transition: all 0.15s;
}

.btn:hover {
    background: var(--border);
    color: #fff;
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

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

.btn-success {
    background: var(--success);
    border-color: var(--success);
    color: #fff;
}

.btn-warning {
    background: var(--warning);
    border-color: var(--warning);
    color: #000;
}

.btn-danger {
    background: var(--danger);
    border-color: var(--danger);
    color: #fff;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8rem;
}

.btn-xs {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.metric-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.metric-icon {
    font-size: 2rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.metric-icon.running {
    background: rgba(63, 185, 80, 0.2);
    color: var(--success);
}

.metric-icon.total {
    background: rgba(88, 166, 255, 0.2);
    color: var(--primary);
}

.metric-icon.memory {
    background: rgba(210, 153, 34, 0.2);
    color: var(--warning);
}

.metric-icon.average {
    background: rgba(139, 148, 158, 0.2);
    color: var(--text-muted);
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Section */
.section {
    margin-bottom: 2rem;
}

.section h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.data-table th,
.data-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    background: var(--bg-hover);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

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

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table .loading,
.data-table .empty {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem;
}

.data-table .actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
    text-transform: uppercase;
}

.status-badge.running {
    background: rgba(63, 185, 80, 0.2);
    color: var(--success);
}

.status-badge.stopped {
    background: rgba(139, 148, 158, 0.2);
    color: var(--text-muted);
}

/* System Stats */
.system-stats {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
}

.stat-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 0;
}

.stat-label {
    width: 120px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.stat-value {
    font-family: monospace;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: var(--bg-hover);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    transition: width 0.3s;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control,
.search-input,
select {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.9rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
}

.form-control:focus,
.search-input:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-help {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.form-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.form-section h3 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* Filters */
.filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.filter-group {
    flex: 1;
    max-width: 300px;
}

/* Info Box */
.info-box {
    background: rgba(88, 166, 255, 0.1);
    border: 1px solid rgba(88, 166, 255, 0.3);
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.info-box p {
    margin: 0;
    font-size: 0.9rem;
}

/* Info Grid */
.info-grid {
    display: grid;
    gap: 0.75rem;
}

.info-row {
    display: flex;
    gap: 1rem;
}

.info-row .label {
    color: var(--text-muted);
    min-width: 150px;
}

.info-row .value {
    font-family: monospace;
}

/* Alert */
.alert {
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}

.alert.error {
    background: rgba(248, 81, 73, 0.15);
    border: 1px solid rgba(248, 81, 73, 0.4);
    color: var(--danger);
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--bg-dark) 0%, #1a1f26 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    font-size: 2rem;
    letter-spacing: 3px;
    margin-bottom: 0.25rem;
}

.login-header .subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.login-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.login-footer p {
    margin: 0.25rem 0;
    font-size: 0.85rem;
}

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

/* Instance Link */
.instance-link {
    font-weight: 500;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 60px;
    }

    .sidebar-header h1,
    .sidebar-header .version,
    .nav-label,
    .nav-item span:not(.icon),
    .tenant-info,
    .logout-btn {
        display: none;
    }

    .nav-item {
        justify-content: center;
        padding: 1rem;
    }

    .nav-item .icon {
        font-size: 1.2rem;
    }

    .content {
        margin-left: 60px;
        padding: 1rem;
    }

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

    .filters {
        flex-direction: column;
    }

    .filter-group {
        max-width: none;
    }
}