:root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-card: #252525;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --accent: #4a9eff;
    --success: #4ade80;
    --danger: #ef4444;
    --warning: #f59e0b;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

.container { max-width: 1400px; margin: 0 auto; padding: 20px; }

header {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

h1 { font-size: 2rem; display: flex; align-items: center; gap: 10px; }

.paper-mode-badge {
    background: var(--warning);
    color: #000;
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9rem;
}

.header-buttons { display: flex; gap: 10px; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-card);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid #333;
}

.stat-label { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 10px; }
.stat-value { font-size: 2rem; font-weight: bold; }
.stat-value.profit { color: var(--success); }
.stat-value.status { font-size: 1.5rem; }
.stat-value.status.running { color: var(--success); }
.stat-value.status.stopped { color: var(--danger); }

.pairs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 20px;
}

.pair-card {
    background: var(--bg-card);
    border: 1px solid #333;
    border-radius: 10px;
    padding: 20px;
}

.pair-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.pair-header h2 { color: var(--accent); font-size: 1.5rem; }

.pair-badges { display: flex; gap: 10px; flex-wrap: wrap; }

.badge {
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.8rem;
    background: #333;
}

.badge.paper { background: var(--warning); color: #000; }
.badge.status-running { background: var(--success); color: #000; }
.badge.status-stopped { background: var(--danger); }

.pair-info { margin: 15px 0; }
.info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #333;
}

.pair-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
}

.btn-primary { background: var(--accent); color: white; }
.btn-success { background: var(--success); color: #000; }
.btn-danger { background: var(--danger); color: white; }
.btn-sm { padding: 8px 15px; font-size: 0.9rem; }

.btn:hover { opacity: 0.8; transform: translateY(-2px); }

.profit { color: var(--success); }

@media (max-width: 768px) {
    .pairs-grid { grid-template-columns: 1fr; }
    h1 { font-size: 1.5rem; }
}