/* INTERACTIVE 3D EFFECTS & PARALLAX - Mobile First */
/* Advanced CSS for immersive user experience */

/* Font Update */
body {
    font-family: 'Parkinsans', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px; /* Increased base font size for better readability */
    line-height: 1.6;
}

/* ENHANCED VARIABLES */
:root {
    /* 3D & Animation Variables */
    --perspective: 1000px;
    --rotation-x: 0deg;
    --rotation-y: 0deg;
    --parallax-offset: 0px;
    --tilt-intensity: 8deg;
    --shadow-3d: 0 10px 40px rgba(1,174,170,0.15), 0 0 0 1px rgba(1,174,170,0.1);
    --glow-effect: 0 0 20px rgba(1,174,170,0.3);
    
    /* Enhanced Colors */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --reflection-gradient: linear-gradient(135deg, 
        rgba(255,255,255,0.15) 0%, 
        rgba(255,255,255,0.05) 50%, 
        rgba(255,255,255,0.15) 100%);
        
    /* Typography Scale */
    --h1-size: 2.5rem; /* 40px */
    --h2-size: 2.125rem; /* 34px */
    --h3-size: 1.75rem; /* 28px */
    --body-large: 1.125rem; /* 18px */
    --body-base: 1rem; /* 16px */
    --body-small: 0.875rem; /* 14px */
}

/* GLOBAL 3D CONTAINER */
.container {
    transform-style: preserve-3d;
    perspective: var(--perspective);
}

/* HERO SECTION WITH PARALLAX */
.tofu-section {
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    transform-style: preserve-3d;
}

.hero-gradient-bg {
    transform: translateZ(-50px) scale(1.05);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-gradient-bg::before {
    transform: translateZ(-30px) rotate(-15deg);
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ENHANCED PAIN POINT CARD */
.professional-card {
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.95) 0%, 
        rgba(248, 249, 250, 0.9) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(231, 76, 60, 0.2);
    border-radius: 20px;
    padding: 30px 25px;
    margin: 90px 0 40px; /* Increased top margin for header clearance */
    box-shadow: 
        0 20px 60px rgba(231, 76, 60, 0.1),
        0 0 0 1px rgba(231, 76, 60, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    transform-style: preserve-3d;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.professional-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--reflection-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    border-radius: inherit;
}

.professional-card:hover::before,
.professional-card.tilt-active::before {
    opacity: 1;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.problem-indicator {
    width: 8px;
    height: 40px;
    background: linear-gradient(180deg, #e74c3c 0%, #c0392b 100%);
    border-radius: 4px;
    position: relative;
    box-shadow: 0 2px 8px rgba(231, 76, 60, 0.3);
}

.pain-headline {
    font-size: var(--h2-size);
    font-weight: 700;
    color: var(--dark);
    margin: 0;
    line-height: 1.2;
}

.pain-description {
    font-size: var(--body-large);
    color: var(--gray);
    margin-bottom: 25px;
    line-height: 1.6;
}

.pain-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 15px 10px;
    background: rgba(231, 76, 60, 0.05);
    border: 1px solid rgba(231, 76, 60, 0.1);
    border-radius: 12px;
    transform-style: preserve-3d;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateZ(10px);
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--danger);
    margin-bottom: 5px;
}

.stat-label {
    font-size: var(--body-small);
    color: var(--gray);
    font-weight: 500;
}

/* SOLUTION BADGE */
.solution-badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 15px 30px;
    border-radius: 50px;
    margin-bottom: 25px;
    box-shadow: var(--shadow-3d);
    transform-style: preserve-3d;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.solution-badge::after {
    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 0.6s ease;
}

.solution-badge:hover::after,
.solution-badge.shine::after {
    left: 100%;
}

.badge-text {
    font-size: 1.25rem;
    font-weight: 800;
    display: block;
    letter-spacing: 1px;
}

.badge-subtitle {
    font-size: var(--body-small);
    opacity: 0.9;
    display: block;
    margin-top: 3px;
}

/* ENHANCED TYPOGRAPHY */
.hero-title {
    margin-bottom: 25px;
    line-height: 1.1;
    text-shadow: 0 2px 4px rgba(1,174,170,0.1);
}

.title-highlight {
    font-size: 2.75rem; /* Increased from 32px */
    font-weight: 800;
    color: var(--primary);
    display: block;
    text-shadow: 2px 2px 8px rgba(1,174,170,0.2);
}

.title-main {
    font-size: 2.25rem; /* Increased from 28px */
    font-weight: 600;
    color: var(--dark);
    display: block;
}

.hero-subtitle {
    font-size: var(--body-large); /* Increased from 16px */
    color: var(--gray);
    margin: 0 auto 35px;
    max-width: 320px;
    line-height: 1.6;
}

/* 3D COMPARISON CARDS */
.comparison-cards {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 15px;
    margin: 35px 0;
    align-items: center;
    perspective: var(--perspective);
}

.comparison-card {
    background: var(--white);
    border-radius: 16px;
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow-md);
    position: relative;
    transform-style: preserve-3d;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.comparison-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--reflection-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    border-radius: inherit;
}

.comparison-card.traditional {
    border: 2px solid rgba(231, 76, 60, 0.2);
    box-shadow: 0 8px 25px rgba(231, 76, 60, 0.1);
}

.comparison-card.innovative {
    border: 2px solid var(--primary);
    background: var(--gradient-light);
    box-shadow: var(--shadow-3d);
}

.comparison-card.innovative::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-primary);
    border-radius: inherit;
    z-index: -1;
    opacity: 0.1;
}

/* 3D HOVER EFFECTS */
.comparison-card:hover,
.comparison-card.tilt-active {
    transform: translateY(-8px) rotateX(var(--rotation-x)) rotateY(var(--rotation-y));
    box-shadow: 
        0 20px 50px rgba(1,174,170,0.2),
        0 0 0 1px rgba(1,174,170,0.1);
}

.comparison-card:hover::before,
.comparison-card.tilt-active::before {
    opacity: 1;
}

.vs-divider {
    background: var(--gradient-primary);
    color: var(--white);
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 800;
    justify-self: center;
    box-shadow: var(--shadow-lg);
    transform-style: preserve-3d;
    transition: all 0.3s ease;
}

.vs-divider:hover {
    transform: rotateY(360deg) scale(1.1);
    box-shadow: var(--glow-effect);
}

/* 3D BENEFIT CARDS */
.benefit-card-mobile {
    background: var(--white);
    border-radius: 20px;
    padding: 25px;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--primary-lighter);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    transform-style: preserve-3d;
    overflow: hidden;
}

.benefit-card-mobile::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--reflection-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    border-radius: inherit;
}

.benefit-card-mobile:hover,
.benefit-card-mobile.tilt-active {
    transform: translateY(-10px) rotateX(var(--rotation-x)) rotateY(var(--rotation-y));
    box-shadow: var(--shadow-xl);
}

.benefit-card-mobile:hover::before,
.benefit-card-mobile.tilt-active::before {
    opacity: 1;
}

.benefit-card-mobile.featured {
    background: var(--gradient-light);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.benefit-card-mobile.featured:hover {
    box-shadow: 
        var(--shadow-xl),
        var(--glow-effect);
}

/* 3D ICON CONTAINERS */
.benefit-icon-modern {
    font-size: 28px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
    transform-style: preserve-3d;
    transition: all 0.3s ease;
}

.benefit-icon-modern:hover {
    transform: rotateY(180deg) scale(1.1);
    box-shadow: var(--glow-effect);
}

/* ENHANCED CTA BUTTONS */
.cta-primary-mobile {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 18px 36px;
    border-radius: 50px;
    text-decoration: none;
    font-size: var(--body-large);
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 20px;
    transform-style: preserve-3d;
    position: relative;
    overflow: hidden;
}

.cta-primary-mobile::after {
    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 0.6s ease;
}

.cta-primary-mobile:hover::after {
    left: 100%;
}

.cta-primary-mobile:hover,
.cta-primary-mobile:active {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-xl), var(--glow-effect);
}

/* MOBILE TOUCH ENHANCEMENTS */
@media (max-width: 768px) {
    .tofu-section {
        padding: 100px 0 60px; /* Extra padding for header clearance */
    }
    
    .professional-card {
        margin-top: 100px; /* Ensure clearance from fixed header */
    }
    
    /* Touch-specific animations */
    .comparison-card,
    .benefit-card-mobile,
    .professional-card {
        -webkit-tap-highlight-color: transparent;
    }
    
    /* Simplified 3D for better mobile performance */
    .comparison-card:active,
    .benefit-card-mobile:active {
        transform: scale(0.98) translateZ(5px);
    }
    
    /* Enhanced font sizes for mobile */
    .pain-headline {
        font-size: 1.875rem; /* 30px */
    }
    
    .title-highlight {
        font-size: 2.25rem; /* 36px */
    }
    
    .title-main {
        font-size: 1.875rem; /* 30px */
    }
}

/* TABLET RESPONSIVE */
@media (min-width: 769px) and (max-width: 1024px) {
    .comparison-cards {
        max-width: 600px;
        margin: 40px auto;
    }
    
    .benefits-stack {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
    
    .professional-card {
        max-width: 700px;
        margin: 40px auto;
        padding: 40px;
    }
}

/* DESKTOP ENHANCEMENTS */
@media (min-width: 1025px) {
    .hero-content {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
        max-width: 1200px;
        margin: 0 auto;
    }
    
    .comparison-cards {
        max-width: 500px;
    }
    
    .benefits-stack {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 40px;
        max-width: 1000px;
        margin: 0 auto;
    }
    
    .professional-card {
        max-width: 800px;
        margin: 40px auto;
        padding: 50px;
    }
    
    /* Enhanced desktop hover effects */
    .benefit-card-mobile:hover {
        transform: translateY(-15px) rotateX(-5deg) rotateY(2deg);
    }
    
    .comparison-card:hover {
        transform: translateY(-12px) rotateX(-3deg) rotateY(var(--rotation-y));
    }
}

/* PERFORMANCE OPTIMIZATIONS */
.tofu-section,
.mofu-section,
.professional-card,
.benefit-card-mobile,
.comparison-card {
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

/* ACCESSIBILITY ENHANCEMENTS */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        transform: none !important;
    }
}

/* HIGH CONTRAST MODE */
@media (prefers-contrast: high) {
    .professional-card,
    .benefit-card-mobile,
    .comparison-card {
        border-width: 2px;
        box-shadow: none;
    }
    
    .solution-badge,
    .cta-primary-mobile {
        border: 2px solid var(--primary-dark);
    }
}