/**
 * Vehicle Parameter System - Frontend Styles
 */

/* Parameter display enhancement */
.vehicle-specifications--system {
    background: #fff;
}

/* 规格选择器：按维度分组，点选后切换变体 */
.vehicle-spec-selector {
    margin: 0 0 32px;
    padding: 20px 24px;
    background: #f7f8f8;
    border: 1px solid #e6e8ea;
    border-radius: 4px;
}

.vehicle-spec-selector.is-loading {
    opacity: .6;
    pointer-events: none;
}

.vehicle-spec-selector__group {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 12px;
}

.vehicle-spec-selector__group:last-of-type {
    margin-bottom: 0;
}

.vehicle-spec-selector__label {
    flex: 0 0 96px;
    padding-top: 7px;
    font-size: 13px;
    font-weight: 600;
    color: #50575e;
}

.vehicle-spec-selector__options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.vehicle-spec-selector__option {
    padding: 6px 16px;
    font-size: 13px;
    line-height: 1.5;
    color: #23282d;
    background: #fff;
    border: 1px solid #d7dadd;
    border-radius: 3px;
    cursor: pointer;
    transition: border-color .15s, background .15s, color .15s;
}

.vehicle-spec-selector__option:hover {
    border-color: #23282d;
}

.vehicle-spec-selector__option:focus-visible {
    outline: 2px solid #5f8f17;
    outline-offset: 2px;
}

.vehicle-spec-selector__option.is-active {
    color: #fff;
    background: #23282d;
    border-color: #23282d;
}

.vehicle-spec-selector__status {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid #e6e8ea;
    font-size: 12px;
    color: #787c82;
}

@media (max-width: 768px) {
    .vehicle-spec-selector__group {
        flex-direction: column;
        gap: 6px;
    }

    .vehicle-spec-selector__label {
        flex: none;
        padding-top: 0;
    }
}

.vehicle-param-group {
    margin-bottom: 40px;
}

.vehicle-param-group:last-child {
    margin-bottom: 0;
}

.vehicle-param-group-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f0f0f0;
    color: #23282d;
}

/* Table layout (default) */
.vehicle-param-table {
    margin: 0;
}

.vehicle-param-table > div {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
}

.vehicle-param-table > div:last-child {
    border-bottom: none;
}

.vehicle-param-table dt {
    flex: 0 0 45%;
    font-weight: 500;
    color: #555;
    margin: 0;
}

.vehicle-param-table dd {
    flex: 0 0 50%;
    text-align: right;
    font-weight: 600;
    color: #23282d;
    margin: 0;
}

.vehicle-spec-unit {
    font-weight: normal;
    color: #666;
    font-size: 0.9em;
}

/* Grid layout (alternative) */
.vehicle-param-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.vehicle-param-item {
    padding: 15px;
    background: #f9f9f9;
    border-radius: 4px;
    border-left: 3px solid #0073aa;
}

.vehicle-param-item dt {
    font-size: 12px;
    text-transform: uppercase;
    color: #666;
    margin-bottom: 5px;
    font-weight: 500;
}

.vehicle-param-item dd {
    font-size: 18px;
    font-weight: 600;
    color: #23282d;
    margin: 0;
}

/* Empty state */
.vehicle-params-empty {
    text-align: center;
    padding: 40px 20px;
    color: #666;
    font-style: italic;
}

/* Responsive */
@media (max-width: 768px) {
    .vehicle-param-table > div {
        flex-direction: column;
        gap: 5px;
    }
    
    .vehicle-param-table dt,
    .vehicle-param-table dd {
        flex: 1 1 auto;
        text-align: left;
    }·
    
    .vehicle-param-table dd {
        font-size: 16px;
    }
    
    .vehicle-param-grid {
        grid-template-columns: 1fr;
    }
}