:root {
    --primary: #ff69b4;
    --primary-light: #ffc0cb;
    --dark-bg: #1a1a1a;
    --card-bg: #2d2d2d;
    --border-color: #3d3d3d;
    --text-color: #ffffff;
}

body {
    margin: 0;
    padding: 0;
    background: var(--dark-bg);
    color: var(--text-color);
    font-family: 'SF Pro Display', Arial, sans-serif;
}

.sidebar {
    width: 200px;
    background: var(--card-bg);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    padding: 20px;
    box-sizing: border-box;
    border-right: 1px solid var(--border-color);
}

.sidebar h2 {
    color: var(--text-color);
    margin-bottom: 30px;
    font-size: 1.2em;
}

.nav-group {
    margin-bottom: 10px;
}

.nav-item {
    padding: 12px 15px;
    margin-bottom: 5px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-color);
    text-decoration: none;
    display: block;
    font-size: 0.95em;
}

.nav-item:hover {
    background: rgba(255, 105, 180, 0.1);
    color: var(--primary);
    text-decoration: none;
}

.nav-item.active {
    background: var(--primary);
    color: white;
}

.nav-item.active:hover {
    background: var(--primary);
    color: white;
    opacity: 0.9;
}

.main-content {
    margin-left: 200px;
    padding: 30px;
}

.data-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.data-card:hover {
    transform: translateY(-5px);
}

.glow-text {
    color: var(--primary);
    text-shadow: 0 0 10px rgba(255,105,180,0.3);
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.metric {
    font-size: 2em;
    margin: 15px 0;
    color: var(--primary-light);
}

.chart-container {
    background: #232323;
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
    height: 300px;
    position: relative;
}

.sales-trend-graph {
    height: 300px;
    width: 97%;
}

.sales-trend-graph canvas {
    max-width: 100%;
}

.trend-indicator {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.9em;
    margin-left: 10px;
}

.trend-up {
    background: rgba(255, 105, 180, 0.1);
    color: var(--primary);
}

.trend-down {
    background: rgba(255, 82, 82, 0.1);
    color: #ff8da1;
}

.ranking-section {
    margin-top: 30px;
}

.ranking-item {
    display: flex;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
}

.rank-number {
    font-size: 1.5em;
    font-weight: bold;
    margin-right: 20px;
    color: var(--primary);
    min-width: 40px;
}

.rank-content {
    flex-grow: 1;
}

.rank-title {
    color: white;
    text-decoration: none;
}

.rank-title.disabled {
    pointer-events: none;
}

.rank-stats {
    display: flex;
    gap: 20px;
    color: var(--primary-light);
}

@media (max-width: 1024px) {
    .sidebar {
        width: 200px;
    }
    .main-content {
        margin-left: 200px;
    }
    .grid-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    .main-content {
        margin-left: 0;
    }
    .grid-container {
        grid-template-columns: 1fr;
    }
}