:root {
    --bg-dark: #0f111a;
    --bg-card: #1a1d2b;
    --accent-green: #00f2ff;
    --accent-danger: #ff4d4d;
    --text-main: #e0e6ed;
    --text-dim: #94a3b8;
    --border-color: #2d334a;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
}

.top-nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: 50px;
    background: #000;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 1000;
}

.sidebar {
    width: 240px;
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    padding-top: 70px;
    display: flex;
    flex-direction: column;
}

.sidebar a {
    padding: 15px 25px;
    color: var(--text-dim);
    text-decoration: none;
}

.sidebar a.active {
    color: var(--accent-green);
    border-left: 3px solid var(--accent-green);
    background: rgba(0, 242, 255, 0.05);
}

.main-content {
    flex-grow: 1;
    padding: 80px 40px;
}

.card {
    background: var(--bg-card);
    padding: 20px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.terminal {
    background: #000;
    font-family: monospace;
    padding: 15px;
    color: #00ff41;
    height: 300px;
    overflow-y: auto;
    border: 1px solid #333;
}

button {
    background: var(--accent-green);
    color: #000;
    border: none;
    padding: 10px 20px;
    font-weight: bold;
    cursor: pointer;
}

.btn-danger { background: var(--accent-danger); color: white; }