:root {
    --bg-color: #0a0a0c;
    --card-bg: rgba(20, 20, 25, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.5);
    --accent-cyan: #00f2ff;
    --accent-green: #00ff88;
    --accent-red: #ff3e3e;
    --accent-magenta: #ff00ff;
    --font-ui: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-ui);
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.glass-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% -20%, rgba(0, 242, 255, 0.05), transparent 70%);
    pointer-events: none;
    z-index: 100;
}

/* Header */
header {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-orb {
    width: 12px;
    height: 12px;
    background: var(--accent-cyan);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--accent-cyan);
    animation: pulse 2s infinite ease-in-out;
}

h1 {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 2px;
}

h1 span {
    color: var(--accent-cyan);
    font-weight: 300;
}

.system-status {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-indicator.active {
    background: var(--accent-green);
    box-shadow: 0 0 10px var(--accent-green);
}

.uptime {
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

/* Main Layout */
main {
    flex: 1;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    overflow-y: auto;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    backdrop-filter: blur(12px);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.metric-card h3 {
    font-size: 0.7rem;
    color: var(--text-secondary);
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.metric-card .value {
    font-size: 2rem;
    font-weight: 800;
    font-family: var(--font-mono);
}

.metric-card .value.positive { color: var(--accent-green); }
.metric-card .value.negative { color: var(--accent-red); }

.metric-card .sub-value {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
}

.health-indicators {
    display: flex;
    gap: 1rem;
    margin: 0.5rem 0;
}

.health-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
    font-family: var(--font-mono);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.status-dot.green { background: var(--accent-green); box-shadow: 0 0 5px var(--accent-green); }

/* Content Row */
.content-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    flex: 1;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 0.9rem;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
}

.pulse-text {
    font-size: 0.6rem;
    color: var(--accent-cyan);
    font-weight: 800;
}

.trade-feed {
    height: 300px;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.trade-item {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
}

.trade-item .side-buy { color: var(--accent-cyan); }
.trade-item .side-sell { color: var(--accent-magenta); }

/* Visualizer */
.visualizer {
    height: 300px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 242, 255, 0.1);
}

.scanline {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: rgba(0, 242, 255, 0.2);
    box-shadow: 0 0 10px var(--accent-cyan);
    z-index: 5;
}

.data-stream {
    height: 100%;
    display: flex;
    align-items: flex-end;
    gap: 2px;
    padding: 10px;
}

.bar {
    flex: 1;
    background: var(--accent-cyan);
    opacity: 0.3;
    transition: height 0.1s ease;
}

/* Footer */
footer {
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.mode-toggle {
    background: transparent;
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    padding: 0.4rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 800;
    transition: all 0.3s ease;
}

.mode-toggle:hover {
    background: var(--accent-cyan);
    color: var(--bg-color);
    box-shadow: 0 0 15px var(--accent-cyan);
}

/* Mobile Adaptation */
@media (max-width: 768px) {
    header {
        padding: 1rem;
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }

    main {
        padding: 1rem;
        gap: 1rem;
    }

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

    .content-row {
        grid-template-columns: 1fr;
    }

    .metric-card .value {
        font-size: 1.5rem;
    }

    .trade-feed {
        height: 250px;
    }

    .visualizer {
        height: 200px;
    }

    footer {
        flex-direction: column;
        gap: 1rem;
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    h1 {
        font-size: 1rem;
    }
}

/* Scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.1); border-radius: 10px; }