* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: Arial, Helvetica, sans-serif;
    background: #f5f8fa;
    padding: 10px;
}
.container {
    max-width: 1000px;
    margin: 0 auto;
}
h1 {
    text-align: center;
    color: #333;
    margin-bottom: 10px;
    font-size: 20px;
}
.filters {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}
.filter-btn {
    padding: 6px 14px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 20px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
}
.filter-btn:hover {
    background: #e8f4fc;
}
.filter-btn.active {
    background: #2196F3;
    color: white;
    border-color: #2196F3;
}
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}
.card {
    background: white;
    border-radius: 10px;
    padding: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}
.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}
.card-icon {
    font-size: 28px;
}
.card-title {
    font-weight: bold;
    font-size: 13px;
    color: #333;
}
.efficiency-value {
    font-size: 28px;
    font-weight: bold;
    text-align: center;
    margin: 8px 0;
}
.efficiency-bar {
    height: 20px;
    background: #eee;
    border-radius: 10px;
    overflow: hidden;
    margin: 8px 0;
}
.efficiency-fill {
    height: 100%;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 5px;
    font-size: 10px;
    color: white;
    font-weight: bold;
}
.waste-label {
    font-size: 10px;
    color: #999;
    text-align: center;
}
.card-detail {
    font-size: 11px;
    color: #666;
    margin-top: 8px;
    display: none;
    padding-top: 8px;
    border-top: 1px solid #eee;
}
.card.expanded .card-detail {
    display: block;
}
.eff-high { background: linear-gradient(90deg, #2e7d32, #4caf50); }
.eff-med-high { background: linear-gradient(90deg, #558b2f, #8bc34a); }
.eff-med { background: linear-gradient(90deg, #f9a825, #ffeb3b); color: #333 !important; }
.eff-low { background: linear-gradient(90deg, #ef6c00, #ff9800); }
.eff-very-low { background: linear-gradient(90deg, #c62828, #f44336); }
.summary {
    background: white;
    padding: 12px;
    border-radius: 10px;
    margin-top: 15px;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 15px;
    font-size: 12px;
}
.summary-item {
    text-align: center;
}
.summary-value {
    font-size: 18px;
    font-weight: bold;
    color: #2196F3;
}