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

:root {
    --bg-primary: #0d0d0d;
    --bg-secondary: #1a1a1a;
    --bg-card: #1e1e1e;
    --bg-hover: #2a2a2a;
    --border: #333;
    --border-dashed: #444;
    --accent: #6c63ff;
    --accent-hover: #7c74ff;
    --accent-glow: rgba(108, 99, 255, 0.3);
    --text-primary: #f0f0f0;
    --text-secondary: #888;
    --text-muted: #555;
    --success: #4caf50;
    --warning: #ff9800;
    --error: #f44336;
    --blue: #2196f3;
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
}

.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

.app-header {
    text-align: center;
    margin-bottom: 32px;
}

.app-header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #6c63ff, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 24px;
    align-items: start;
}

.section-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-title::before {
    content: '';
    width: 3px;
    height: 18px;
    background: var(--accent);
    border-radius: 2px;
    display: inline-block;
}

/* Responsive */
@media (max-width: 900px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}