/* ===== CSS RESET & BASE STYLES ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #2B2D33;
    background-color: #FFFFFF;
    overflow-x: hidden;
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: 2px solid transparent;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, #3A7DFF 0%, #8E44FF 100%);
    color: white;
    border-color: transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(58, 125, 255, 0.3);
}

.btn-outline {
    background: transparent;
    color: #3A7DFF;
    border-color: #3A7DFF;
}

.btn-outline:hover {
    background: #3A7DFF;
    color: white;
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

.btn-small {
    padding: 8px 16px;
    font-size: 14px;
}

.gradient-text {
    background: linear-gradient(135deg, #3A7DFF 0%, #8E44FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: #2B2D33;
}

.section-description {
    font-size: 1.2rem;
    color: #6B6E76;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #E1E3E8;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2B2D33;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    font-weight: 500;
    color: #6B6E76;
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #3A7DFF;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #3A7DFF;
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger-line {
    width: 24px;
    height: 3px;
    background: #6B6E76;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: #2B2D33;
}

.hero-description {
    font-size: 1.2rem;
    color: #6B6E76;
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #3A7DFF;
}

.stat-label {
    font-size: 0.9rem;
    color: #6B6E76;
    font-weight: 500;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

/* App Store Button Styling */
.app-store-link {
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
}

.app-store-link:hover {
    transform: translateY(-3px);
    filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.2));
}

.store-badge-large {
    height: 80px;
    width: auto;
    max-width: 280px;
    transition: all 0.3s ease;
}

.store-badge {
    height: 60px;
    width: auto;
    max-width: 200px;
}

.store-badge-footer {
    height: 50px;
    width: auto;
    max-width: 180px;
    transition: all 0.3s ease;
}

.store-badge-small {
    height: 40px;
    width: auto;
}

.hero-features {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.feature-icon {
    font-size: 1.5rem;
}

.feature-text {
    font-size: 0.9rem;
    font-weight: 500;
    color: #6B6E76;
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    max-width: 400px;
}

.hero-phone {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.floating-item {
    position: absolute;
    background: white;
    padding: 12px 16px;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 8px;
    animation: float 3s ease-in-out infinite;
}

.storage-item {
    top: 20%;
    right: -20%;
    animation-delay: 0s;
}

.speed-item {
    top: 50%;
    left: -30%;
    animation-delay: 1s;
}

.clean-item {
    bottom: 20%;
    right: -10%;
    animation-delay: 2s;
}

.item-icon {
    font-size: 1.2rem;
}

.item-text {
    font-size: 0.9rem;
    font-weight: 600;
    color: #2B2D33;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.7;
    animation: float 6s ease-in-out infinite;
}

.orb-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #3A7DFF, #8E44FF);
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #FF5F36, #FFB800);
    bottom: 20%;
    left: 10%;
    animation-delay: 2s;
}

.orb-3 {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, #2AC7C9, #2ECC71);
    top: 60%;
    right: 30%;
    animation-delay: 4s;
}

/* ===== FEATURES SECTION ===== */
.features {
    padding: 100px 0;
    background: #F5F6FA;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
    margin-bottom: 80px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #E1E3E8;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    border-radius: 16px;
    background: transparent;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: #2B2D33;
}

.feature-description {
    color: #6B6E76;
    margin-bottom: 20px;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    color: #6B6E76;
    margin-bottom: 8px;
    position: relative;
    padding-left: 24px;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #3A7DFF;
    font-weight: bold;
}

.features-stats {
    margin-top: 60px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.stat-card {
    background: white;
    padding: 24px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-icon {
    font-size: 2rem;
}

.stat-content {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.stat-card .stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: #3A7DFF;
}

.stat-card .stat-label {
    font-size: 0.9rem;
    color: #6B6E76;
}

/* ===== SCREENSHOTS SECTION ===== */
.screenshots {
    padding: 100px 0;
    background: white;
}

.screenshots-container {
    position: relative;
    max-width: 100%;
    overflow: hidden;
    border-radius: 20px;
    padding: 0 20px;
}

.screenshots-wrapper {
    display: flex;
    transition: transform 0.3s ease;
    gap: 24px;
    justify-content: center;
    align-items: center;
}

.screenshot-item {
    flex: 0 0 300px;
    text-align: center;
}

.screenshot-image {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.screenshot-image:hover {
    transform: scale(1.05);
}

.screenshot-caption {
    margin-top: 16px;
}

.screenshot-caption h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2B2D33;
    margin-bottom: 8px;
}

.screenshot-caption p {
    color: #6B6E76;
    font-size: 0.9rem;
}

.screenshots-dots {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 32px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #E1E3E8;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active,
.dot:hover {
    background: #3A7DFF;
    transform: scale(1.2);
}

.screenshot-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6B6E76;
    transition: all 0.3s ease;
}

.screenshot-nav:hover {
    background: #3A7DFF;
    color: white;
    transform: translateY(-50%) scale(1.1);
}

.screenshot-nav.prev {
    left: 20px;
}

.screenshot-nav.next {
    right: 20px;
}

/* ===== PRICING SECTION ===== */
.pricing {
    padding: 100px 0;
    background: #F5F6FA;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.pricing-card {
    background: white;
    border-radius: 20px;
    padding: 40px 32px;
    text-align: center;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    border: 2px solid transparent;
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.pricing-card.featured {
    border-color: #3A7DFF;
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.pricing-header {
    margin-bottom: 24px;
}

.pricing-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2B2D33;
    margin-bottom: 8px;
}

.pricing-badge {
    display: inline-block;
    padding: 6px 12px;
    background: #E1E3E8;
    color: #6B6E76;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-badge.popular {
    background: linear-gradient(135deg, #3A7DFF, #8E44FF);
    color: white;
}

.pricing-price {
    margin-bottom: 32px;
}

.price-amount {
    font-size: 3rem;
    font-weight: 800;
    color: #2B2D33;
}

.price-period {
    font-size: 1rem;
    color: #6B6E76;
    font-weight: 500;
}

.pricing-btn {
    width: 100%;
    margin-bottom: 16px;
}

.trial-note {
    font-size: 0.9rem;
    color: #6B6E76;
    font-style: italic;
}

.annual-discount {
    background: linear-gradient(135deg, #3A7DFF, #8E44FF);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 40px;
    color: white;
}

.discount-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.discount-icon {
    font-size: 2rem;
}

.discount-text h4 {
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.discount-text p {
    opacity: 0.9;
}

.guarantee {
    background: white;
    border: 2px solid #E1E3E8;
    border-radius: 12px;
    padding: 24px;
}

.guarantee-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    text-align: center;
}

.guarantee-icon {
    font-size: 2rem;
}

.guarantee-text h4 {
    color: #2B2D33;
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.guarantee-text p {
    color: #6B6E76;
    font-size: 0.9rem;
}

/* ===== FOOTER ===== */
.footer {
    background: #1D1F2A;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
}

.footer-brand {
    max-width: 400px;
}

.brand-info {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.footer-description {
    color: #6B6E76;
    line-height: 1.7;
    margin-bottom: 24px;
}

.download-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: white;
}

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

.footer-list li {
    margin-bottom: 12px;
}

.footer-link {
    color: #6B6E76;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: #3A7DFF;
}

.social-links {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: #6B6E76;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #3A7DFF;
    color: white;
    transform: translateY(-2px);
}

.newsletter-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: white;
}

.newsletter-form {
    display: flex;
    gap: 8px;
}

.newsletter-input {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid #6B6E76;
    border-radius: 8px;
    background: #6B6E76;
    color: white;
    font-size: 0.9rem;
}

.newsletter-input::placeholder {
    color: #FFFFFF;
}

.newsletter-btn {
    padding: 10px 16px;
    background: #3A7DFF;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
}

.newsletter-btn:hover {
    background: #8E44FF;
}

.footer-bottom {
    border-top: 1px solid #6B6E76;
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.legal-links {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.legal-link {
    color: #6B6E76;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.legal-link:hover {
    color: #3A7DFF;
}

.separator {
    color: #6B6E76;
}

.copyright {
    color: #6B6E76;
    font-size: 0.9rem;
}

.footer-certifications {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: #6B6E76;
}

.cert-icon {
    font-size: 1rem;
}

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

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

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: white;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        padding: 20px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        flex-direction: column;
        gap: 20px;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active .hamburger-line:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 20px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .floating-item {
        display: none;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .feature-card {
        padding: 24px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        justify-content: center;
        text-align: center;
    }
    
    .screenshot-nav {
        display: none;
    }
    
    .screenshots-wrapper {
        justify-content: flex-start;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding: 0 20px;
    }
    
    .screenshot-item {
        scroll-snap-align: center;
        flex: 0 0 280px;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-8px);
    }
    
    .discount-content {
        text-align: center;
        flex-direction: column;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .legal-links {
        justify-content: center;
    }
    
    .footer-certifications {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 16px;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .legal-links {
        flex-direction: column;
        gap: 12px;
    }
    
    .separator {
        display: none;
    }
}