/* ============================================
   BODY SESSION - MODERN WEBSITE STYLES
   Mobile-First Responsive Design
   ============================================ */

/* ============================================
   CSS VARIABLES & RESET
   ============================================ */

:root {
    /* Color Palette - Modern Green Theme */
    --color-primary: #10b981;
    --color-primary-dark: #059669;
    --color-primary-light: #34d399;
    --color-secondary: #3b82f6;
    --color-accent: #f59e0b;
    
    /* Neutral Colors */
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-lighter: #9ca3af;
    --color-bg: #ffffff;
    --color-bg-light: #f9fafb;
    --color-bg-dark: #111827;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Layout */
    --container-width: 1200px;
    --container-padding: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
    margin: 0 0 var(--spacing-md) 0;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
    margin: 0 0 var(--spacing-sm) 0;
    word-wrap: break-word;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
}

/* ============================================
   LAYOUT & CONTAINERS
   ============================================ */

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--spacing-xl) 0;
}

@media (max-width: 767px) {
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.logo img {
    height: 50px;
    width: auto;
    aspect-ratio: 16 / 9;
    object-fit: contain;
}

/* Desktop Navigation */
.nav-desktop {
    display: none;
}

.nav-desktop ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-desktop a {
    color: var(--color-text);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
}

.nav-desktop a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

.nav-desktop a:hover::after {
    width: 100%;
}

/* Mobile Navigation */
.mobile-menu-toggle {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--color-text);
    margin: 5px 0;
    transition: var(--transition-base);
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--color-bg);
    box-shadow: var(--shadow-xl);
    z-index: 1000;
    transition: right var(--transition-base);
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu ul {
    list-style: none;
    margin-top: var(--spacing-lg);
}

.mobile-menu li {
    border-bottom: 1px solid var(--color-bg-light);
}

.mobile-menu a {
    display: block;
    padding: var(--spacing-sm);
    color: var(--color-text);
    font-weight: 500;
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 1024px) {
    .mobile-menu-toggle {
        display: none;
    }
    
    .mobile-menu {
        display: none;
    }
    
    .mobile-menu-overlay {
        display: none;
    }
    
    .nav-desktop {
        display: block;
    }
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    line-height: 1.5;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: white;
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

@media (max-width: 767px) {
    .btn {
        width: 100%;
        max-width: 100%;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('../assets/images/main_bg.png') no-repeat center right;
    background-size: contain;
    opacity: 0.1;
    z-index: 0;
}

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

.hero-text {
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.hero-text p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 3;
}

.hero-cta a {
    position: relative;
    z-index: 3;
    pointer-events: auto;
}

.hero-image {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-image img {
    width: 100%;
    max-width: 100vw;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    object-position: center;
    display: block;
    transform: scale(1.5);
    pointer-events: none;
}

@media (min-width: 768px) {
    .hero-image img {
        width: 140%;
        max-width: 800px;
        margin-left: -20%;
        transform: scale(1.5);
    }
}

@media (min-width: 1024px) {
    .hero-image img {
        width: 150%;
        max-width: 900px;
        margin-left: -25%;
        transform: scale(2);
    }
}

.store-badges {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    position: relative;
    z-index: 3;
}

.store-badges a {
    position: relative;
    z-index: 3;
    pointer-events: auto;
}

.store-badges img {
    height: 50px;
    width: auto;
    pointer-events: none;
}

@media (min-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero {
        min-height: 90vh;
    }
}

/* ============================================
   FEATURES SECTION
   ============================================ */

.features {
    background: var(--color-bg);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: var(--spacing-sm) auto 0;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--color-bg);
    border-radius: 16px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.feature-card p {
    color: var(--color-text-light);
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    text-align: left;
    margin-top: var(--spacing-sm);
}

.feature-list li {
    padding: 0.5rem 0;
    color: var(--color-text-light);
    position: relative;
    padding-left: 1.5rem;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   VIDEO SECTION
   ============================================ */

.video-section {
    background: #f9fafb;
    color: var(--color-text);
    padding: var(--spacing-2xl) 0;
}

.video-section .section-header {
    color: var(--color-text);
}

.video-section .section-header p {
    color: var(--color-text-light);
}

.video-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    aspect-ratio: 16 / 9;
}

.video-container iframe,
.video-container video {
    width: 100%;
    height: 100%;
    border: none;
}

.video-caption {
    text-align: center;
    margin-top: var(--spacing-md);
    color: var(--color-text-light);
}

/* ============================================
   SCREENSHOTS CAROUSEL
   ============================================ */

.screenshots {
    background: var(--color-bg-light);
}

.carousel {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.carousel-container {
    position: relative;
    overflow: visible;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    max-height: 480px;
}

@media (max-width: 767px) {
    .carousel-container {
        max-height: 450px;
    }
}

@media (max-width: 480px) {
    .carousel-container {
        max-height: 400px;
    }
}

.carousel-track {
    display: flex;
    transition: transform var(--transition-slow);
}

.carousel-slide {
    min-width: 100%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.carousel-slide img {
    max-height: 450px;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
    margin: 0 auto;
    border-radius: 24px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

@media (max-width: 767px) {
    .carousel-slide img {
        max-height: 400px;
        border-radius: 20px;
    }
}

@media (max-width: 480px) {
    .carousel-slide img {
        max-height: 300px;
        border-radius: 16px;
    }
}

/* Additional selectors for compatibility (if needed elsewhere) */
.screenshot-carousel img,
.screenshot-slider img,
.app-screenshot img {
    max-height: 450px;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
    margin: 0 auto;
}

.screenshot-carousel,
.screenshot-slider,
.app-screenshot {
    max-height: 480px;
    overflow: visible;
}

.carousel-nav {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.carousel-btn {
    background: var(--color-primary);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all var(--transition-base);
}

.carousel-btn:hover {
    background: var(--color-primary-dark);
    transform: scale(1.1);
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: var(--color-text-lighter);
    cursor: pointer;
    transition: all var(--transition-base);
}

.carousel-dot.active {
    background: var(--color-primary);
    transform: scale(1.2);
}

.screenshot-caption {
    text-align: center;
    margin-top: var(--spacing-sm);
    color: var(--color-text-light);
    font-weight: 500;
}

/* ============================================
   BENEFITS / HOW IT WORKS
   ============================================ */

.benefits {
    background: var(--color-bg);
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.benefit-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.benefit-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.benefit-content h3 {
    margin-bottom: var(--spacing-xs);
}

.benefit-content p {
    color: var(--color-text-light);
}

@media (min-width: 768px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================
   PRICING SECTION
   ============================================ */

.pricing {
    background: var(--color-bg-light);
}

.pricing-toggle {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    background: white;
    padding: 4px;
    border-radius: 50px;
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
    box-shadow: var(--shadow-md);
}

.pricing-toggle-btn {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--color-text-light);
    font-weight: 600;
    cursor: pointer;
    border-radius: 50px;
    transition: all var(--transition-base);
}

.pricing-toggle-btn.active {
    background: var(--color-primary);
    color: white;
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.pricing-card {
    background: white;
    border-radius: 16px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--color-bg-light);
    transition: all var(--transition-base);
    position: relative;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.pricing-discount-ribbon {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--color-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    z-index: 10;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-bg-light);
}

.pricing-name {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    margin-top: 0;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.pricing-subtitle {
    margin-bottom: var(--spacing-md) !important;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-xs);
}

.pricing-amount {
    font-size: 3rem;
    font-weight: 900;
    color: var(--color-text);
    line-height: 1;
}

.pricing-period {
    font-size: 1rem;
    color: var(--color-text-light);
    font-weight: 400;
}

.pricing-description {
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

.pricing-features {
    list-style: none;
    margin: var(--spacing-md) 0;
    flex-grow: 1;
}

.pricing-features li {
    padding: var(--spacing-xs) 0;
    color: var(--color-text-light);
    position: relative;
    padding-left: 1.5rem;
}

.pricing-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.pricing-cta {
    margin-top: auto;
    padding-top: var(--spacing-md);
}

@media (min-width: 768px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   TESTIMONIALS / REVIEWS
   ============================================ */

.testimonials {
    background: var(--color-bg);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.testimonial-card {
    background: white;
    border-radius: 16px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.testimonial-content {
    flex-grow: 1;
}

.testimonial-quote {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text);
    font-style: italic;
    margin-bottom: var(--spacing-md);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.testimonial-photo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-primary);
}

.testimonial-info h4 {
    margin: 0;
    font-size: 1rem;
    color: var(--color-text);
}

.testimonial-info p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--color-text-light);
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.store-badges-footer {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-sm);
}

.store-badges-footer img {
    height: 40px;
    width: auto;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.store-badges-footer img:hover {
    opacity: 1;
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   UTILITIES
   ============================================ */

.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* ============================================
   RESPONSIVE IMAGES
   ============================================ */

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.scroll-reveal {
    opacity: 0;
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal.revealed {
    opacity: 1;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}