/* Unit Price Component Styles */

/* Unit Price Section - Main Display */
.unit-price-section {
    background: linear-gradient(135deg, rgba(247, 147, 30, 0.05) 0%, rgba(255, 107, 53, 0.05) 100%);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px 24px;
    margin-top: 16px;
    position: relative;
    overflow: hidden;
}

.unit-price-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
    border-radius: 16px 16px 0 0;
}

.unit-price-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.unit-price-icon {
    width: 24px;
    height: 24px;
    color: var(--accent-color);
    flex-shrink: 0;
}

.unit-price-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.unit-price-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.unit-price-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px 18px;
    background: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.unit-price-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.unit-price-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
}

.unit-price-item:hover::before {
    opacity: 1;
}

.unit-price-item:hover .unit-price-value {
    color: var(--primary-color);
    transform: scale(1.02);
}

.unit-price-item:hover .unit-price-meta {
    opacity: 1;
}

.unit-price-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.unit-price-value {
    font-size: 20px;
    font-weight: 800;
    color: var(--accent-color);
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin-bottom: 6px;
    line-height: 1.2;
    letter-spacing: -0.02em;
    transition: color var(--transition-base);
}

.unit-price-meta {
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 400;
    opacity: 0.6;
    line-height: 1.4;
    margin-top: 2px;
    transition: opacity var(--transition-base);
}

.unit-price-currency {
    font-size: 14px;
    color: var(--text-secondary);
}

.unit-price-compare-icon {
    width: 16px;
    height: 16px;
    color: var(--accent-color);
    margin-left: auto;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.unit-price-item:hover .unit-price-compare-icon {
    opacity: 1;
}

/* Compact Unit Price Display for Stats Cards */
.unit-price-compact {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.unit-price-compact:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.unit-price-compact-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(247, 147, 30, 0.1), rgba(255, 107, 53, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    flex-shrink: 0;
}

.unit-price-compact-info {
    flex: 1;
    min-width: 0;
}

.unit-price-compact-label {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.unit-price-compact-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Tooltip for Additional Info */
.unit-price-tooltip {
    position: relative;
    display: inline-block;
}

.unit-price-tooltip-content {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 8px;
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    font-size: 12px;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    pointer-events: none;
    z-index: 10;
}

.unit-price-tooltip-content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 4px solid transparent;
    border-top-color: rgba(0, 0, 0, 0.9);
}

.unit-price-tooltip:hover .unit-price-tooltip-content {
    opacity: 1;
    visibility: visible;
}

/* Expandable Section */
.unit-price-expandable {
    margin-top: 16px;
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
}

.unit-price-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    transition: color var(--transition-fast);
    width: 100%;
    justify-content: center;
}

.unit-price-toggle:hover {
    color: var(--accent-color);
}

.unit-price-toggle-icon {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-base);
}

.unit-price-toggle[aria-expanded="true"] .unit-price-toggle-icon {
    transform: rotate(180deg);
}

.unit-price-details {
    margin-top: 12px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    display: none;
}

.unit-price-details.expanded {
    display: block;
    animation: fadeIn var(--transition-base);
}

.unit-price-breakdown {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    font-size: 14px;
}

.unit-price-breakdown-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.unit-price-breakdown-item:last-child {
    border-bottom: none;
}

.unit-price-breakdown-label {
    color: var(--text-secondary);
}

.unit-price-breakdown-value {
    font-weight: 600;
    color: var(--text-primary);
}

/* Badge for Best Value Indicator */
.unit-price-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
    animation: valueBadgePulse 2s ease-in-out infinite;
}

@keyframes valueBadgePulse {
    0%, 100% {
        box-shadow: var(--shadow-sm);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2);
        transform: scale(1.02);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .unit-price-section {
        padding: 16px 20px;
    }
    
    .unit-price-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .unit-price-item {
        padding: 14px 16px;
    }
    
    .unit-price-value {
        font-size: 18px;
        font-weight: 700;
    }
    
    .unit-price-meta {
        font-size: 11px;
    }
    
    .unit-price-breakdown {
        grid-template-columns: 1fr;
    }
    
    .unit-price-compact {
        padding: 16px;
        gap: 12px;
    }
    
    .unit-price-compact-icon {
        width: 40px;
        height: 40px;
    }
    
    .unit-price-compact-value {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .unit-price-section {
        padding: 12px 16px;
        margin-top: 12px;
    }
    
    .unit-price-value {
        font-size: 17px;
        font-weight: 700;
    }
    
    .unit-price-meta {
        font-size: 10px;
    }
    
    .unit-price-item {
        padding: 12px 14px;
    }
    
    .unit-price-compact-value {
        font-size: 16px;
    }
}

/* Dark Mode Adjustments */
[data-theme="dark"] .unit-price-section {
    background: linear-gradient(135deg, rgba(247, 147, 30, 0.08) 0%, rgba(255, 107, 53, 0.08) 100%);
}

[data-theme="dark"] .unit-price-details {
    background: var(--bg-tertiary);
}

/* Animation */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .unit-price-item,
    .unit-price-compact,
    .unit-price-toggle-icon {
        transition: none;
    }
    
    .unit-price-details.expanded {
        animation: none;
    }
    
    .unit-price-badge {
        animation: none;
    }
}

/* Focus States */
.unit-price-toggle:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    border-radius: 4px;
}

.unit-price-item:focus-within {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* 정보 중요도별 시각적 가이드 */
.unit-price-value::after {
    content: '';
    position: absolute;
    left: -4px;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 20px;
    background: var(--accent-color);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.unit-price-item:hover .unit-price-value::after {
    opacity: 0.6;
}

/* 텍스트 선택 개선 */
.unit-price-value {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

/* 고대비 모드 지원 */
@media (prefers-contrast: high) {
    .unit-price-value {
        font-weight: 900;
        color: var(--text-primary);
    }
    
    .unit-price-item {
        border-width: 2px;
    }
    
    .unit-price-item:hover {
        border-width: 3px;
    }
}