/* ============================================
   VPS Dashboard - Agent Zero Style
   Dark Theme with Card Layout
   ============================================ */

:root {
    /* Core Colors */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-card: #21262d;
    --bg-card-hover: #30363d;
    
    /* Text Colors */
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    
    /* Accent Colors */
    --accent: #58a6ff;
    --accent-hover: #79c0ff;
    --accent-glow: rgba(88, 166, 255, 0.3);
    
    /* Status Colors */
    --status-ok: #238636;
    --status-ok-bg: rgba(35, 134, 54, 0.15);
    --status-warn: #d29922;
    --status-warn-bg: rgba(210, 153, 34, 0.15);
    --status-error: #da3633;
    --status-error-bg: rgba(218, 54, 51, 0.15);
    --status-running: #3fb950;
    --status-stopped: #f85149;
    
    /* Borders & Shadows */
    --border-color: #30363d;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    
    /* Spacing */
    --gap: 20px;
    --padding: 24px;
}

/* ============================================
   Base Styles
   ============================================ */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    background: var(--bg-primary);
    background: linear-gradient(135deg, #0d1117 0%, #161b22 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 20px;
}

/* ============================================
   Header
   ============================================ */

header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--status-ok), var(--accent));
}

header h1 {
    color: var(--text-primary);
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

header h1 .icon {
    font-size: 2rem;
}

.hostname {
    font-size: 1.3rem;
    color: var(--accent);
    font-weight: 500;
    font-family: 'SF Mono', Monaco, monospace;
}

.timestamp {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* ============================================
   Grid Layout
   ============================================ */

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gap);
    margin-bottom: var(--gap);
}

@media (max-width: 1200px) {
    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Cards
   ============================================ */

.card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
    border-color: var(--accent);
}

.card-header {
    padding: 16px 20px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-header h2 {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0;
}

.card-header .icon {
    font-size: 1.2rem;
}

.card-body {
    padding: var(--padding);
}

/* Card Variants */
.card-system { border-top: 3px solid var(--accent); }
.card-memory { border-top: 3px solid #a371f7; }
.card-storage { border-top: 3px solid #3fb950; }
.card-network { border-top: 3px solid #d29922; }
.card-lab { border-top: 3px solid var(--status-ok); }
.card-docker { border-top: 3px solid #79c0ff; }
.card-domains { border-top: 3px solid #f778ba; }

/* ============================================
   Metric Cards (Small)
   ============================================ */

.metric-card {
    text-align: center;
}

.metric-card .metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 12px 0;
    font-family: 'SF Mono', Monaco, monospace;
}

.metric-card .metric-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metric-card .metric-icon {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

/* ============================================
   Lab Status Section
   ============================================ */

.status-panel {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: var(--bg-card);
    border-radius: var(--border-radius-sm);
    margin-bottom: 16px;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-light {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--text-muted);
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.1);
    position: relative;
}

.status-light::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
}

.status-ok .status-light {
    background: var(--status-ok);
    box-shadow: 0 0 20px var(--status-ok), 0 0 0 4px var(--status-ok-bg);
    animation: pulse-green 2s infinite;
}

.status-warn .status-light {
    background: var(--status-warn);
    box-shadow: 0 0 20px var(--status-warn), 0 0 0 4px var(--status-warn-bg);
    animation: pulse-yellow 2s infinite;
}

.status-error .status-light {
    background: var(--status-error);
    box-shadow: 0 0 20px var(--status-error), 0 0 0 4px var(--status-error-bg);
    animation: pulse-red 2s infinite;
}

@keyframes pulse-green {
    0%, 100% { box-shadow: 0 0 20px var(--status-ok), 0 0 0 4px var(--status-ok-bg); }
    50% { box-shadow: 0 0 30px var(--status-ok), 0 0 0 6px var(--status-ok-bg); }
}

@keyframes pulse-yellow {
    0%, 100% { box-shadow: 0 0 20px var(--status-warn), 0 0 0 4px var(--status-warn-bg); }
    50% { box-shadow: 0 0 30px var(--status-warn), 0 0 0 6px var(--status-warn-bg); }
}

@keyframes pulse-red {
    0%, 100% { box-shadow: 0 0 20px var(--status-error), 0 0 0 4px var(--status-error-bg); }
    50% { box-shadow: 0 0 30px var(--status-error), 0 0 0 6px var(--status-error-bg); }
}

.status-text {
    font-size: 1.3rem;
    font-weight: 600;
}

.status-ok .status-text { color: var(--status-ok); }
.status-warn .status-text { color: var(--status-warn); }
.status-error .status-text { color: var(--status-error); }

.lab-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
}

.lab-metric {
    background: var(--bg-card);
    padding: 16px;
    border-radius: var(--border-radius-sm);
    text-align: center;
}

.lab-metric .label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.lab-metric .value {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent);
    font-family: 'SF Mono', Monaco, monospace;
}

/* ============================================
   Tables
   ============================================ */

.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.9rem;
}

th {
    background: var(--bg-card);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

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

tr:hover td {
    background: var(--bg-card-hover);
}

/* Table Cell Styles */
.cell-name {
    font-family: 'SF Mono', Monaco, monospace;
    font-weight: 500;
    color: var(--accent);
}

.cell-ports {
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ============================================
   Status Badges
   ============================================ */

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.status-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-running {
    background: var(--status-ok-bg);
    color: var(--status-running);
}

.status-running::before {
    background: var(--status-running);
    box-shadow: 0 0 8px var(--status-running);
}

.status-stopped {
    background: var(--status-error-bg);
    color: var(--status-stopped);
}

.status-stopped::before {
    background: var(--status-stopped);
}

/* ============================================
   Section Grid (for larger cards)
   ============================================ */

.section-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap);
    margin-bottom: var(--gap);
}

@media (max-width: 992px) {
    .section-grid {
        grid-template-columns: 1fr;
    }
}

.card-full {
    grid-column: 1 / -1;
}

/* ============================================
   Footer
   ============================================ */

footer {
    text-align: center;
    padding: 24px;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border-color);
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

footer span {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ============================================
   Error States
   ============================================ */

.error-message {
    background: var(--status-error-bg);
    border: 1px solid var(--status-error);
    border-radius: var(--border-radius-sm);
    padding: 16px;
    color: var(--status-error);
    display: flex;
    align-items: center;
    gap: 12px;
}

.error-message .icon {
    font-size: 1.5rem;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    header {
        padding: 20px;
    }
    
    header h1 {
        font-size: 1.6rem;
    }
    
    .card-header {
        padding: 14px 16px;
    }
    
    .card-body {
        padding: 16px;
    }
    
    .status-panel {
        flex-direction: column;
        text-align: center;
    }
    
    th, td {
        padding: 12px;
    }
    
    .metric-card .metric-value {
        font-size: 1.5rem;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}