/* ===================================================================
   PHASE 2: PREMIUM USE-CASE CARD ILLUSTRATIONS
   Complete overhaul with jaw-dropping visuals
   =================================================================== */

/* Remove the dark box background and improve SVG display */
.use-case-card {
    position: relative;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 24px;
    padding: 40px 30px;
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    overflow: hidden;
}

.use-case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(0, 212, 255, 0.05) 0%, 
        rgba(157, 78, 221, 0.05) 50%, 
        rgba(0, 255, 136, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    z-index: 0;
}

.use-case-card:hover::before {
    opacity: 1;
}

.use-case-card:hover {
    transform: translateY(-12px);
    border-color: rgba(0, 212, 255, 0.4);
    box-shadow: 
        0 20px 60px rgba(0, 212, 255, 0.2),
        0 0 40px rgba(157, 78, 221, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Premium SVG illustration styling */
.use-case-card .use-case-illustration {
    width: 100%;
    max-width: 240px;
    height: auto;
    aspect-ratio: 1 / 1;
    margin: 0 auto 35px;
    display: block;
    opacity: 0.95;
    transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    filter: drop-shadow(0 8px 32px rgba(0, 212, 255, 0.25));
    position: relative;
    z-index: 1;
}

/* Remove any background from the illustration container */
.use-case-card .use-case-illustration-container {
    background: none !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
}

/* Enhanced hover effects for SVG */
.use-case-card:hover .use-case-illustration {
    opacity: 1;
    transform: scale(1.08) translateY(-8px);
    filter: 
        drop-shadow(0 12px 40px rgba(0, 212, 255, 0.4))
        drop-shadow(0 0 20px rgba(157, 78, 221, 0.3));
}

/* Add a subtle glow ring around SVG on hover */
.use-case-card::after {
    content: '';
    position: absolute;
    top: 40px;
    left: 50%;
    transform: translateX(-50%);
    width: 240px;
    height: 240px;
    background: radial-gradient(circle, 
        rgba(0, 212, 255, 0.15) 0%, 
        transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    z-index: 0;
}

.use-case-card:hover::after {
    opacity: 1;
}

/* Use case header styling */
.use-case-card .use-case-header {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.use-case-card .use-case-header i {
    font-size: 24px;
    background: linear-gradient(135deg, #00D4FF 0%, #9D4EDD 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.5));
}

.use-case-card .use-case-header h5 {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    margin: 0;
}

/* Use case list styling */
.use-case-card .use-case-list {
    position: relative;
    z-index: 1;
    list-style: none;
    padding: 0;
    margin: 0;
}

.use-case-card .use-case-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    line-height: 1.6;
    transition: all 0.3s ease;
}

.use-case-card:hover .use-case-list li {
    color: rgba(255, 255, 255, 0.95);
}

.use-case-card .use-case-list li i {
    color: #00FF88;
    font-size: 16px;
    margin-top: 3px;
    filter: drop-shadow(0 0 8px rgba(0, 255, 136, 0.5));
    flex-shrink: 0;
}

/* Individual card color accents */
.use-case-card:nth-child(1):hover {
    border-color: rgba(0, 212, 255, 0.5);
}

.use-case-card:nth-child(2):hover {
    border-color: rgba(157, 78, 221, 0.5);
}

.use-case-card:nth-child(3):hover {
    border-color: rgba(255, 0, 110, 0.5);
}

.use-case-card:nth-child(4):hover {
    border-color: rgba(0, 255, 136, 0.5);
}

/* Responsive adjustments */
@media (max-width: 1200px) {
    .use-case-card .use-case-illustration {
        max-width: 200px;
    }
    
    .use-case-card::after {
        width: 200px;
        height: 200px;
    }
}

@media (max-width: 768px) {
    .use-case-card {
        padding: 30px 24px;
    }
    
    .use-case-card .use-case-illustration {
        max-width: 180px;
        margin-bottom: 25px;
    }
    
    .use-case-card::after {
        width: 180px;
        height: 180px;
    }
    
    .use-case-card .use-case-header h5 {
        font-size: 20px;
    }
    
    .use-case-card .use-case-list li {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .use-case-card .use-case-illustration {
        max-width: 160px;
    }
    
    .use-case-card::after {
        width: 160px;
        height: 160px;
    }
}

/* Animation delays for staggered effect */
.use-case-card:nth-child(1) .use-case-illustration {
    animation-delay: 0.1s;
}

.use-case-card:nth-child(2) .use-case-illustration {
    animation-delay: 0.2s;
}

.use-case-card:nth-child(3) .use-case-illustration {
    animation-delay: 0.3s;
}

.use-case-card:nth-child(4) .use-case-illustration {
    animation-delay: 0.4s;
}

/* Floating animation for SVGs */
@keyframes float-gentle {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.use-case-card .use-case-illustration {
    animation: float-gentle 6s ease-in-out infinite;
}

.use-case-card:nth-child(2) .use-case-illustration {
    animation-delay: 1s;
}

.use-case-card:nth-child(3) .use-case-illustration {
    animation-delay: 2s;
}

.use-case-card:nth-child(4) .use-case-illustration {
    animation-delay: 3s;
}

/* Premium glow effect on card borders */
@keyframes border-glow {
    0%, 100% {
        box-shadow: 
            0 0 20px rgba(0, 212, 255, 0.3),
            0 0 40px rgba(0, 212, 255, 0.1);
    }
    50% {
        box-shadow: 
            0 0 30px rgba(0, 212, 255, 0.4),
            0 0 60px rgba(0, 212, 255, 0.2);
    }
}

.use-case-card:hover {
    animation: border-glow 2s ease-in-out infinite;
}

/* Ensure grid layout is correct */
.use-case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

@media (min-width: 1024px) {
    .use-case-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1400px) {
    .use-case-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 25px;
    }
}

/* Accessibility: Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    .use-case-card .use-case-illustration {
        animation: none;
    }
    .use-case-card:hover {
        animation: none;
    }
    .use-case-card,
    .use-case-card::before,
    .use-case-card::after,
    .use-case-illustration {
        transition: none;
    }
}