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

:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --dark-bg: #0f172a;
    --light-bg: #f8fafc;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --white: #ffffff;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--dark-bg);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.9) 0%, rgba(139, 92, 246, 0.9) 100%);
    z-index: 1;
}

.screenshot-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    opacity: 0.3;
}

.screenshot-track {
    display: flex;
    animation: scroll 30s linear infinite;
    height: 100%;
}

.screenshot-track img {
    height: 100%;
    width: auto;
    object-fit: cover;
    margin-right: 20px;
    border-radius: 20px;
    filter: blur(2px);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    padding: 0 20px;
}

.hero-content h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -2px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 600;
    margin-bottom: 15px;
    opacity: 0.95;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.3rem);
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--white);
    color: var(--primary-color);
    padding: 18px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.apple-icon {
    width: 24px;
    height: 24px;
}

/* Features Section */
.features {
    padding: 120px 0;
    background: var(--light-bg);
}

.features h2 {
    text-align: center;
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.section-subtitle {
    text-align: center;
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--text-light);
    margin-bottom: 80px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: var(--gradient-1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.feature-card:nth-child(2) .feature-icon {
    background: var(--gradient-2);
}

.feature-card:nth-child(3) .feature-icon {
    background: var(--gradient-3);
}

.feature-card:nth-child(4) .feature-icon {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.feature-icon svg {
    width: 40px;
    height: 40px;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.7;
}

/* Showcase Section */
.showcase {
    padding: 120px 0;
    background: var(--white);
}

.showcase h2 {
    text-align: center;
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 80px;
    color: var(--text-dark);
}

.showcase-screenshots {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
}

.showcase-screenshots img {
    max-width: 300px;
    height: auto;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.showcase-screenshots img:hover {
    transform: scale(1.05);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
}

/* How It Works Section */
.how-it-works {
    padding: 120px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
}

.how-it-works h2 {
    text-align: center;
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 80px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 50px;
    max-width: 1000px;
    margin: 0 auto;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border: 3px solid var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    margin: 0 auto 25px;
    backdrop-filter: blur(10px);
}

.step h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.step p {
    font-size: 1.1rem;
    opacity: 0.9;
    line-height: 1.7;
}

/* CTA Section */
.cta-section {
    padding: 120px 0;
    background: var(--dark-bg);
    color: var(--white);
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 25px;
}

.cta-content p {
    font-size: clamp(1rem, 2vw, 1.3rem);
    margin-bottom: 50px;
    opacity: 0.9;
}

.cta-button-large {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    background: var(--gradient-1);
    color: var(--white);
    padding: 22px 50px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.cta-button-large:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

/* Footer */
.footer {
    background: #1e293b;
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 15px;
}

.footer-section h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.7;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-section ul li a:hover {
    opacity: 1;
}

.contact-email {
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-email svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.contact-email a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
    word-break: break-all;
}

.contact-email a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .hero {
        height: 100vh;
        min-height: 500px;
    }

    .hero-content h1 {
        font-size: 3rem;
    }

    .screenshot-track img {
        height: 80%;
        margin-right: 10px;
    }

    .features,
    .showcase,
    .how-it-works,
    .cta-section {
        padding: 80px 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .showcase-screenshots {
        flex-direction: column;
        gap: 20px;
    }

    .showcase-screenshots img {
        max-width: 100%;
        width: 280px;
    }

    .steps {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .contact-email {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

    .cta-button,
    .cta-button-large {
        padding: 15px 30px;
        font-size: 1rem;
    }

    .feature-card {
        padding: 30px 20px;
    }

    .showcase-screenshots img {
        width: 100%;
        max-width: 250px;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card,
.step {
    animation: fadeIn 0.6s ease-out;
}