/* ========================================
   HOMEPAGE - MODERN PREMIUM DESIGN
   ======================================== */

/* Global Reset for Homepage */
* {
    box-sizing: border-box;
}

html, body {
    overflow-x: hidden;
    width: 100%;
    margin: 0;
    padding: 0;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
}

/* Hero Section - Premium Design */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%236366f1" fill-opacity="0.03"><circle cx="30" cy="30" r="2"/></g></svg>') repeat;
    pointer-events: none;
    z-index: 1;
}

.hero-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    animation: slideInLeft 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-title {
    font-size: clamp(3rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 50%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    position: relative;
}

.gradient-text::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 50%, var(--accent-color) 100%);
    border-radius: 2px;
    opacity: 0.3;
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
    flex-wrap: wrap;
}

.hero-actions .btn {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: var(--radius-xl);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.hero-actions .btn-primary {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: white;
    border: none;
    box-shadow: var(--shadow-lg);
}

.hero-actions .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.hero-actions .btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 2px solid var(--border-primary);
    box-shadow: var(--shadow-md);
}

.hero-actions .btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.hero-actions .btn:hover .btn-icon {
    transform: translateX(4px);
}

/* Hero Visual - Premium Animation */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: slideInRight 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.conversion-preview {
    display: flex;
    align-items: center;
    gap: var(--spacing-2xl);
    padding: var(--spacing-2xl);
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--border-primary);
    position: relative;
    overflow: hidden;
}

.conversion-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--accent-primary-alpha) 0%, var(--accent-secondary-alpha) 100%);
    opacity: 0.5;
    z-index: 1;
}

.file-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 2;
    min-width: 120px;
}

.file-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.file-card.input {
    border-color: var(--accent-primary);
    animation: float 3s ease-in-out infinite;
}

.file-card.output {
    border-color: var(--accent-secondary);
    animation: float 3s ease-in-out infinite 1.5s;
}

.file-icon {
    width: 48px;
    height: 48px;
    color: var(--accent-primary);
    transition: all 0.3s ease;
}

.file-card.output .file-icon {
    color: var(--accent-secondary);
}

.file-card:hover .file-icon {
    transform: scale(1.1);
}

.conversion-arrow {
    width: 40px;
    height: 40px;
    color: var(--accent-primary);
    animation: pulse 2s ease-in-out infinite;
    position: relative;
    z-index: 2;
}

/* Features Section - Modern Grid */
.features {
    padding: var(--spacing-4xl) 0;
    background: var(--bg-primary);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
    position: relative;
    z-index: 2;
}

.section-title {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
    position: relative;
    z-index: 2;
}

.feature-card {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    text-align: center;
    border: 1px solid var(--border-primary);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--accent-primary-alpha) 0%, var(--accent-secondary-alpha) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--accent-primary);
}

.feature-card:hover::before {
    opacity: 0.1;
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-lg);
    color: var(--accent-primary);
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    color: var(--accent-secondary);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 2;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
    z-index: 2;
}

/* Benefits Section - Premium Layout */
.benefits {
    padding: var(--spacing-4xl) 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    position: relative;
    overflow: hidden;
}

.benefits::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 70%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.benefits-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.benefits-text h2 {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.2;
}

.benefit-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.benefit-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.benefit-icon {
    width: 48px;
    height: 48px;
    color: var(--accent-primary);
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.benefit-item:hover .benefit-icon {
    transform: scale(1.1);
    color: var(--accent-secondary);
}

.benefit-item h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.benefit-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Stats Grid - Premium Design */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.stat-item {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    border: 1px solid var(--border-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--accent-primary-alpha) 0%, var(--accent-secondary-alpha) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-primary);
}

.stat-item:hover::before {
    opacity: 0.1;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 2;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    z-index: 2;
}

/* Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
        text-align: center;
    }
    
    .benefits-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: 80vh;
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-container {
        padding: 0 var(--spacing-md);
        gap: var(--spacing-2xl);
    }
    
    .hero-actions {
        justify-content: center;
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .conversion-preview {
        flex-direction: column;
        gap: var(--spacing-lg);
        padding: var(--spacing-xl);
    }
    
    .conversion-arrow {
        transform: rotate(90deg);
    }
    
    .features {
        padding: var(--spacing-3xl) 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .benefits {
        padding: var(--spacing-3xl) 0;
    }
    
    .benefit-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .hero {
        min-height: 70vh;
        padding: var(--spacing-xl) 0;
    }
    
    .hero-container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .hero-actions .btn {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 1rem;
    }
    
    .conversion-preview {
        padding: var(--spacing-lg);
    }
    
    .file-card {
        padding: var(--spacing-lg);
        min-width: 100px;
    }
    
    .file-icon {
        width: 40px;
        height: 40px;
    }
    
    .features {
        padding: var(--spacing-2xl) 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .feature-card {
        padding: var(--spacing-xl);
    }
    
    .benefits {
        padding: var(--spacing-2xl) 0;
    }
    
    .benefits-text h2 {
        font-size: 2rem;
    }
    
    .benefit-item {
        padding: var(--spacing-md);
    }
    
    .stat-item {
        padding: var(--spacing-xl);
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

/* iPhone 14 Pro Max Specific */
@media (max-width: 430px) and (max-height: 932px) {
    .hero {
        min-height: 100vh;
        padding: var(--spacing-lg) 0;
    }
    
    .hero-container {
        padding: 0 var(--spacing-sm);
        gap: var(--spacing-lg);
    }
    
    .hero-title {
        font-size: 2.25rem;
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-description {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-actions .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.875rem;
    }
    
    .conversion-preview {
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
    }
    
    .file-card {
        padding: var(--spacing-md);
        min-width: 80px;
    }
    
    .file-icon {
        width: 32px;
        height: 32px;
    }
    
    .conversion-arrow {
        width: 32px;
        height: 32px;
    }
    
    .features {
        padding: var(--spacing-xl) 0;
    }
    
    .section-title {
        font-size: 1.75rem;
        margin-bottom: var(--spacing-md);
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    .feature-card {
        padding: var(--spacing-lg);
    }
    
    .feature-icon {
        width: 48px;
        height: 48px;
    }
    
    .benefits {
        padding: var(--spacing-xl) 0;
    }
    
    .benefits-text h2 {
        font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
    }
    
    .benefit-item {
        padding: var(--spacing-sm);
        gap: var(--spacing-sm);
    }
    
    .benefit-icon {
        width: 40px;
        height: 40px;
    }
    
    .benefit-item h4 {
        font-size: 1rem;
    }
    
    .benefit-item p {
        font-size: 0.875rem;
    }
    
    .stat-item {
        padding: var(--spacing-lg);
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
}

/* Dark Theme Adjustments */
[data-theme="dark"] .hero::before {
    background: 
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(6, 182, 212, 0.03) 0%, transparent 50%);
}

[data-theme="dark"] .features::before {
    background: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.03) 0%, transparent 50%);
}

[data-theme="dark"] .benefits::before {
    background: 
        radial-gradient(circle at 30% 70%, rgba(6, 182, 212, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
}

/* Performance Optimizations */
.feature-card,
.benefit-item,
.stat-item,
.file-card {
    will-change: transform;
}

.hero-actions .btn {
    will-change: transform, box-shadow;
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    .hero-content,
    .hero-visual,
    .feature-card,
    .benefit-item,
    .stat-item,
    .file-card {
        animation: none;
    }
    
    .file-card.input,
    .file-card.output,
    .conversion-arrow {
        animation: none;
    }
    
    .hero-actions .btn:hover,
    .feature-card:hover,
    .benefit-item:hover,
    .stat-item:hover,
    .file-card:hover {
        transform: none;
    }
}

/* Focus States for Accessibility */
.hero-actions .btn:focus,
.feature-card:focus,
.benefit-item:focus,
.stat-item:focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .feature-card,
    .benefit-item,
    .stat-item,
    .file-card {
        border-width: 2px;
    }
    
    .hero-actions .btn-secondary {
        border-width: 3px;
    }
}