/* Main Stylesheet - Dark Theme */

:root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #242424;
    --bg-tertiary: #2e2e2e;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-muted: #666;
    --border-color: #3a3a3a;
    --accent-blue: #4a90e2;
    --accent-green: #5cb85c;
    --accent-red: #d9534f;
    --accent-yellow: #f0ad4e;
}

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

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

/* Header */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    gap: 2rem;
    max-width: 1800px;
    margin: 0 auto;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.nav {
    display: flex;
    gap: 1rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.2s;
}

.nav-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-link.active {
    color: var(--accent-blue);
    background: var(--bg-tertiary);
}

.market-selector {
    margin-left: auto;
    display: flex;
    gap: 0.5rem;
}

.market-btn {
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
}

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

.market-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.user-info {
    color: var(--text-secondary);
}

/* Dashboard Container */
.dashboard-container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 2rem;
}

/* Stats Overview */
.stats-overview {
    margin-bottom: 2rem;
}

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

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 600;
    color: var(--accent-blue);
}

/* Sections */
section {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
}

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

.section-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-small {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: #3a7bc8;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-primary);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

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

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

.btn-icon {
    background: transparent;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-secondary);
}

.btn-icon:hover {
    color: var(--text-primary);
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.text-muted {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Color Classes */
.text-green { color: var(--accent-green); }
.text-red { color: var(--accent-red); }
.text-gray { color: var(--text-secondary); }

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .dashboard-container {
        padding: 1rem;
    }
}