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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: #fff;
    padding: 20px;
    min-height: 100vh;
}

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

h1 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 2.5em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

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

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease;
}

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

.stat-card h3 {
    font-size: 0.9em;
    color: #b8c6db;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-card .value {
    font-size: 2em;
    font-weight: bold;
    color: #fff;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.chart-container {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.chart-container h2 {
    margin-bottom: 20px;
    font-size: 1.3em;
    color: #fff;
}

.chart-wrapper {
    position: relative;
    height: 400px;
}

.country-section {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.country-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    cursor: pointer;
    padding: 10px;
    border-radius: 10px;
    transition: background 0.3s ease;
}

.country-header:hover {
    background: rgba(255, 255, 255, 0.1);
}

.country-name {
    font-size: 1.5em;
    font-weight: bold;
    text-transform: capitalize;
}

.country-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.country-stat {
    background: rgba(0, 0, 0, 0.2);
    padding: 15px;
    border-radius: 10px;
}

.country-stat label {
    display: block;
    font-size: 0.85em;
    color: #b8c6db;
    margin-bottom: 5px;
}

.country-stat .value {
    font-size: 1.3em;
    font-weight: bold;
}

.country-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.country-content.expanded {
    max-height: 2000px;
    transition: max-height 0.5s ease-in;
}

.toggle-arrow {
    transition: transform 0.3s ease;
    font-size: 1.2em;
}

.toggle-arrow.expanded {
    transform: rotate(180deg);
}

.vehicle-types {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.vehicle-types h3 {
    margin-bottom: 15px;
    font-size: 1.1em;
    color: #b8c6db;
}

.type-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
}

.type-item {
    background: rgba(0, 0, 0, 0.2);
    padding: 10px 15px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.type-name {
    font-size: 0.9em;
    color: #fff;
}

.type-count {
    font-weight: bold;
    color: #4BC0C0;
}

@media (max-width: 768px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 1.8em;
    }
}