/* ============================================
   MODERN COMPARISON SECTION
   ============================================ */

.comparison-section {
    padding: 6rem 0;
    background: linear-gradient(180deg, #ffffff 0%, #f9fafb 100%);
    position: relative;
    overflow: hidden;
}

.comparison-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.3), transparent);
}

.comparison-wrapper {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    margin-top: 4rem;
    align-items: stretch;
}

/* Comparison Cards */
.comparison-card {
    position: relative;
    background: white;
    border-radius: var(--radius-2xl);
    padding: 2.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.comparison-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

/* Glow Effects */
.comparison-card-glow {
    position: absolute;
    inset: -2px;
    border-radius: var(--radius-2xl);
    opacity: 0;
    z-index: -1;
    filter: blur(20px);
    transition: opacity 0.4s ease;
}

.comparison-card:hover .comparison-card-glow {
    opacity: 0.6;
}

.problem-glow {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.solution-glow {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

/* Problem Card */
.problem-card {
    border-left: 4px solid #ef4444;
}

.problem-card:hover {
    border-left-color: #dc2626;
}

/* Solution Card */
.solution-card {
    border-left: 4px solid #10b981;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.03) 0%, rgba(5, 150, 105, 0.03) 100%);
}

.solution-card:hover {
    border-left-color: #059669;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(5, 150, 105, 0.05) 100%);
}

/* Card Header */
.comparison-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--gray-100);
}

.comparison-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.comparison-icon::before {
    content: '';
    position: absolute;
    inset: 0;
    background: inherit;
    filter: blur(10px);
    opacity: 0.5;
    z-index: -1;
}

.comparison-card:hover .comparison-icon {
    transform: scale(1.1) rotate(5deg);
}

.problem-icon {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #dc2626;
}

.solution-icon {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #059669;
}

.comparison-header-text {
    flex: 1;
}

.comparison-title {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    margin-bottom: 0.25rem;
    color: var(--gray-900);
    letter-spacing: -0.02em;
}

.comparison-subtitle {
    font-size: var(--font-size-base);
    color: var(--gray-600);
    font-weight: 500;
}

/* Comparison List */
.comparison-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.comparison-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    background: var(--gray-50);
}

.comparison-item:hover {
    background: white;
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.item-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.25rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.item-icon::before {
    content: '';
    position: absolute;
    inset: 0;
    background: inherit;
    filter: blur(8px);
    opacity: 0.3;
    z-index: -1;
}

.comparison-item:hover .item-icon {
    transform: scale(1.15) rotate(-5deg);
}

.problem-item-icon {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
}

.solution-item-icon {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
}

.item-content {
    flex: 1;
    padding-top: 0.5rem;
}

.item-text {
    font-size: var(--font-size-base);
    color: var(--gray-700);
    font-weight: 500;
    line-height: 1.6;
}

.solution-card .item-text strong {
    color: #059669;
    font-weight: 800;
}

/* VS Divider */
.vs-divider {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 2rem 0;
}

.vs-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: white;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    border: 3px solid var(--gray-200);
    transition: all 0.4s ease;
}

.vs-circle:hover {
    transform: scale(1.1) rotate(180deg);
    box-shadow: 0 15px 50px rgba(102, 126, 234, 0.3);
    border-color: var(--primary);
}

.vs-text {
    font-size: 1.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.05em;
}

.vs-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background: linear-gradient(180deg, transparent, var(--gray-300), transparent);
    transform: translateX(-50%);
    z-index: 1;
}

/* Animations */
@keyframes itemFadeIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.comparison-item {
    animation: itemFadeIn 0.5s ease-out backwards;
}

.comparison-item:nth-child(1) { animation-delay: 0.1s; }
.comparison-item:nth-child(2) { animation-delay: 0.2s; }
.comparison-item:nth-child(3) { animation-delay: 0.3s; }
.comparison-item:nth-child(4) { animation-delay: 0.4s; }
.comparison-item:nth-child(5) { animation-delay: 0.5s; }
.comparison-item:nth-child(6) { animation-delay: 0.6s; }

/* Responsive Design */
@media (max-width: 1024px) {
    .comparison-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .vs-divider {
        display: none;
    }
    
    .comparison-card {
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .comparison-section {
        padding: 4rem 0;
    }
    
    .comparison-card {
        padding: 1.5rem;
    }
    
    .comparison-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .comparison-icon {
        width: 56px;
        height: 56px;
    }
    
    .comparison-title {
        font-size: var(--font-size-xl);
    }
    
    .comparison-item {
        padding: 0.75rem;
    }
    
    .item-icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
    
    .item-text {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    .comparison-card {
        padding: 1.25rem;
    }
    
    .comparison-header {
        margin-bottom: 1.5rem;
        padding-bottom: 1rem;
    }
    
    .comparison-title {
        font-size: var(--font-size-lg);
    }
    
    .comparison-subtitle {
        font-size: var(--font-size-sm);
    }
    
    .comparison-item {
        gap: 0.75rem;
    }

    .item-icon {
        width: 32px;
        height: 32px;
    }
}

/* Dark elements for contrast */
.comparison-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--gray-200), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.comparison-card:hover::after {
    opacity: 1;
}

.problem-card::after {
    background: linear-gradient(90deg, transparent, #ef4444, transparent);
}

.solution-card::after {
    background: linear-gradient(90deg, transparent, #10b981, transparent);
}

/* Particle effect on hover (optional) */
@keyframes sparkle {
    0%, 100% {
        opacity: 0;
        transform: scale(0) rotate(0deg);
    }
    50% {
        opacity: 1;
        transform: scale(1) rotate(180deg);
    }
}

.comparison-icon::after {
    content: '✨';
    position: absolute;
    font-size: 1rem;
    opacity: 0;
    animation: sparkle 2s ease-in-out infinite;
}

.comparison-card:hover .comparison-icon::after {
    opacity: 1;
}