:root {
    --bg: #0a0e1a;
    --panel: #0f1626;
    --panel2: #131b2e;
    --border: #1c2540;
    --accent-cyan: #00d9ff;
    --accent-green: #00ff88;
    --accent-orange: #ffa726;
    --accent-red: #ff3b5c;
    --accent-blue: #3d8bff;
    --accent-purple: #a855f7;
    --accent-yellow: #ffd54a;
    --text-primary: #e8ecf5;
    --text-secondary: #8a93a8;
    --text-muted: #5a6378;
}

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

body {
    background-color: var(--bg);
    color: var(--text-primary);
    font-family: 'VT323', monospace;
    height: 100vh;
    overflow: hidden;
}

.grid-container {
    display: grid;
    grid-template-columns: 220px auto 340px;
    grid-template-rows: auto 1fr;
    height: calc(100vh - 80px); /* bottom strip 80px */
    gap: 10px;
    padding: 10px;
}

.left-sidebar {
    background-color: var(--panel);
    border: 1px solid var(--border);
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.logo {
    font-family: 'Press Start 2P', cursive;
    font-size: 1.5rem;
    text-align: center;
    color: var(--accent-cyan);
}

.nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav button {
    background: var(--panel2);
    border: 1px solid var(--border);
    color: var-text-primary;
    font-family: 'Press Start 2P', cursive;
    font-size: 0.8rem;
    padding: 8px;
    cursor: pointer;
    text-transform: uppercase;
}

.nav button:hover {
    background: var(--accent-cyan);
    color: var(--bg);
}

.system-status, .server-health {
    font-family: 'Press Start 2P', cursive;
    font-size: 0.8rem;
    display: flex;
    justify-content: space-between;
}

.clock {
    font-family: 'Press Start 2P', cursive;
    font-size: 1rem;
    text-align: center;
    margin-top: auto;
}

.center {
    position: relative;
    background-color: var(--panel2);
    border: 1px solid var(--border);
}

#building {
    width: 100%;
    height: 100%;
    display: block;
    image-rendering: pixelated;
    background-color: var(--panel);
}

.right-sidebar {
    background-color: var(--panel);
    border: 1px solid var(--border);
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.right-sidebar h3 {
    font-family: 'Press Start 2P', cursive;
    font-size: 1rem;
    margin-bottom: 10px;
    color: var(--accent-cyan);
}

.right-sidebar canvas {
    width: 100%;
    height: 100%;
    display: block;
    background-color: var(--panel2);
    border: 1px solid var(--border);
}

.top-agents {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.top-agents ul {
    list-style: none;
    flex: 1;
    overflow-y: auto;
    margin-bottom: 10px;
}

.top-agents li {
    padding: 5px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.8rem;
    display: flex;
    justify-content: space-between;
}

.utilization-bar {
    height: 10px;
    background-color: var(--panel2);
    border: 1px solid var(--border);
    margin-top: auto;
    overflow: hidden;
}

.utilization-bar::before {
    content: '';
    display: block;
    height: 100%;
    background: var(--accent-green);
    width: 0%; /* will be set by JS */
}

.bottom-strip {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    padding: 10px;
}

.bottom-strip .panel {
    background-color: var(--panel2);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'VT323', monospace;
    font-size: 0.9rem;
    color: var(--text-secondary);
}