/* ============================================
   4 PILLARS OF TRANSFORMATION - ENHANCED
   Premium, modern, eye-catching design
   ============================================ */

/* Section Background with Subtle Pattern */
.pillars {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 50%, #f8f9fa 100%);
    position: relative;
    overflow: hidden;
}

/* Animated background pattern */
.pillars::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(79, 209, 197, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.05) 0%, transparent 50%);
    animation: backgroundFloat 20s ease-in-out infinite;
    pointer-events: none;
}

@keyframes backgroundFloat {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(20px, -20px); }
}

/* Enhanced Grid */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 35px;
    position: relative;
    z-index: 1;
}

/* Pillar Card - Premium Design */
.pillar-card {
    background: var(--white);
    border-radius: 24px;
    padding: 45px 35px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

/* Gradient overlay on hover */
.pillar-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(79, 209, 197, 0.05) 0%, rgba(212, 175, 55, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    border-radius: 24px;
    pointer-events: none;
}

.pillar-card:hover::before {
    opacity: 1;
}

/* Subtle shimmer effect on card */
.pillar-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 70%
    );
    transform: translateX(-100%) translateY(-100%) rotate(45deg);
    transition: transform 0.8s ease;
}

.pillar-card:hover::after {
    transform: translateX(100%) translateY(100%) rotate(45deg);
}

/* Enhanced Hover Effect */
.pillar-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15),
                0 0 40px rgba(79, 209, 197, 0.1);
    border-color: var(--teal);
}

/* Pillar Icon - Stunning Design */
.pillar-icon {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, #4FD1C5 0%, #38B2AC 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: var(--white);
    margin-bottom: 28px;
    box-shadow: 0 10px 30px rgba(79, 209, 197, 0.3);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

/* Glowing ring effect */
.pillar-icon::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: linear-gradient(135deg, #4FD1C5, #FFD700);
    border-radius: 22px;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
    animation: iconPulse 3s ease-in-out infinite;
}

@keyframes iconPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.6;
    }
}

.pillar-card:hover .pillar-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 15px 40px rgba(79, 209, 197, 0.4);
}

.pillar-card:hover .pillar-icon::before {
    opacity: 0.7;
    animation-play-state: paused;
}

/* Icon animations on hover */
.pillar-card:hover .pillar-icon i {
    animation: iconBounce 0.6s ease;
}

@keyframes iconBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* Unique gradient per pillar */
.pillar-card:nth-child(1) .pillar-icon {
    background: linear-gradient(135deg, #4FD1C5 0%, #38B2AC 100%);
}

.pillar-card:nth-child(2) .pillar-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.pillar-card:nth-child(3) .pillar-icon {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.pillar-card:nth-child(4) .pillar-icon {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
}

/* Pillar Title - Enhanced */
.pillar-title {
    font-size: 1.6rem;
    margin-bottom: 12px;
    color: var(--navy);
    font-weight: 700;
    line-height: 1.3;
    transition: color 0.3s ease;
}

.pillar-card:hover .pillar-title {
    color: var(--teal);
}

/* Pillar Subtitle - Elegant Badge */
.pillar-subtitle {
    display: inline-block;
    background: linear-gradient(135deg, rgba(79, 209, 197, 0.1), rgba(79, 209, 197, 0.2));
    color: var(--teal);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 18px;
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid rgba(79, 209, 197, 0.3);
    transition: all 0.3s ease;
}

.pillar-card:hover .pillar-subtitle {
    background: linear-gradient(135deg, rgba(79, 209, 197, 0.2), rgba(79, 209, 197, 0.3));
    border-color: var(--teal);
    transform: translateX(5px);
}

/* Description - Better Typography */
.pillar-description {
    color: var(--gray-600);
    margin-bottom: 25px;
    line-height: 1.8;
    font-size: 15px;
}

/* Features List - Enhanced Checkmarks */
.pillar-features {
    list-style: none;
    margin-bottom: 30px;
}

.pillar-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    color: var(--gray-700);
    font-size: 15px;
    transition: transform 0.3s ease;
}

.pillar-card:hover .pillar-features li {
    transform: translateX(5px);
}

/* Animated checkmark icons */
.pillar-features i {
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, var(--teal), var(--teal-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: white;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.pillar-card:hover .pillar-features i {
    transform: scale(1.2) rotate(360deg);
    box-shadow: 0 4px 12px rgba(79, 209, 197, 0.4);
}

/* Learn More Link - Interactive Button */
.pillar-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--white);
    background: linear-gradient(135deg, var(--teal), var(--teal-dark));
    font-weight: 600;
    padding: 12px 24px;
    border-radius: 50px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(79, 209, 197, 0.3);
    position: relative;
    overflow: hidden;
}

/* Button shimmer effect */
.pillar-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.pillar-link:hover::before {
    left: 100%;
}

.pillar-link:hover {
    transform: translateX(5px);
    box-shadow: 0 8px 25px rgba(79, 209, 197, 0.4);
    gap: 15px;
}

.pillar-link i {
    transition: transform 0.3s ease;
}

.pillar-link:hover i {
    transform: translateX(5px);
}

/* Number Badge (optional enhancement) */
.pillar-card::before {
    counter-increment: pillar-counter;
}

/* Responsive Stacking */
@media (max-width: 1024px) {
    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .pillars-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .pillar-card {
        padding: 35px 28px;
    }
    
    .pillar-icon {
        width: 75px;
        height: 75px;
        font-size: 34px;
    }
    
    .pillar-title {
        font-size: 1.4rem;
    }
}

/* Loading animation for cards */
@keyframes cardFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pillar-card {
    animation: cardFadeIn 0.6s ease-out backwards;
}

.pillar-card:nth-child(1) { animation-delay: 0.1s; }
.pillar-card:nth-child(2) { animation-delay: 0.2s; }
.pillar-card:nth-child(3) { animation-delay: 0.3s; }
.pillar-card:nth-child(4) { animation-delay: 0.4s; }

/* Accessibility: Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    .pillar-card,
    .pillar-icon,
    .pillar-link,
    .pillar-features li,
    .pillar-card::after {
        animation: none !important;
        transition: none !important;
    }
    
    .pillar-card:hover {
        transform: none;
    }
}

/* Print: Simplify for printing */
@media print {
    .pillar-card {
        box-shadow: none;
        border: 1px solid #ddd;
        break-inside: avoid;
    }
    
    .pillar-card::before,
    .pillar-card::after,
    .pillar-icon::before {
        display: none;
    }
}