/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-card: #242424;
    --bg-card-hover: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --accent-green: #4ade80;
    --accent-red: #f87171;
    --accent-yellow: #fbbf24;
    --accent-blue: #60a5fa;
    --border-color: #333333;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Network Summary */
.network-summary {
    margin-bottom: 3rem;
}

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

.network-card h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
}

.network-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--accent-green);
}

/* Servers Section */
.servers-section {
    margin-bottom: 3rem;
}

.servers-section h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
}

.servers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.server-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.server-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
}

.server-card.active-server {
    border-color: var(--accent-blue);
    background: var(--bg-card-hover);
    box-shadow: 0 0 15px rgba(96, 165, 250, 0.15);
}

.server-card {
    cursor: pointer;
}

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

.server-name {
    font-size: 1.3rem;
    font-weight: bold;
    text-transform: capitalize;
}

.status-badge {
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-online {
    background: rgba(74, 222, 128, 0.2);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
}

.status-offline {
    background: rgba(248, 113, 113, 0.2);
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
}

.server-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}

.server-stat {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.server-stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.server-stat-value {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-primary);
}

.server-stat-value.peak {
    color: var(--accent-yellow);
}

/* Progress Bar */
.progress-container {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.progress-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-green), var(--accent-blue));
    transition: width 0.3s ease;
}

/* Charts Section */
.charts-section {
    margin-bottom: 3rem;
}

.charts-section h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
}

.chart-container {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.chart-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    padding: 0.6rem 1.5rem;
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.btn.active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: var(--text-primary);
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

/* Loading State */
.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

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

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

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