/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #000000;
    --secondary-color: #ffffff;
    --accent-color: #0066ff;
    --text-color: #333333;
    --text-light: #666666;
    --bg-light: #f8f9fa;
    --bg-dark: #1a1a1a;
    --border-color: #e0e0e0;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--accent-color);
}

.download-btn {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.download-btn:hover {
    background-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Hero Section */
.hero {
    padding: 8rem 2rem 4rem;
    text-align: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--secondary-color);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-container {
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 400;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-download-btn {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 3rem;
}

.hero-download-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.trailer-container {
    margin-top: 3rem;
}

.trailer-thumbnail {
    position: relative;
    display: inline-block;
    cursor: pointer;
}

.play-trailer-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid var(--secondary-color);
    border-radius: 50%;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    color: var(--secondary-color);
}

.play-trailer-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.trailer-text {
    margin-top: 1rem;
    font-size: 1rem;
    opacity: 0.9;
}

/* Feature Sections */
.feature-section {
    padding: 6rem 2rem;
    background-color: var(--secondary-color);
}

.feature-section:nth-child(even) {
    background-color: var(--bg-light);
}

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

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.section-subtitle {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    text-align: center;
    color: var(--text-light);
    margin-bottom: 4rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.feature-item {
    background-color: var(--secondary-color);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-color);
    line-height: 1.4;
}

.feature-image {
    margin-top: 1.5rem;
    border-radius: 8px;
    overflow: hidden;
}

.placeholder-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 1.2rem;
}

/* Testimonials Section */
.testimonials-section {
    padding: 6rem 2rem;
    background-color: var(--bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    background-color: var(--secondary-color);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.testimonial-content {
    margin-bottom: 1.5rem;
}

.testimonial-content blockquote {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-color);
    font-style: italic;
    border-left: 3px solid var(--accent-color);
    padding-left: 1rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 1.2rem;
}

.author-info {
    flex: 1;
}

.author-name {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.author-title {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Privacy Section */
.privacy-section {
    padding: 6rem 2rem;
    background-color: var(--secondary-color);
    text-align: center;
}

.privacy-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
    max-width: 800px;
    margin: 0 auto 3rem;
}

.privacy-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
}

.privacy-link:hover {
    text-decoration: underline;
}

.privacy-image {
    max-width: 800px;
    margin: 0 auto;
}

/* Footer CTA */
.footer-cta {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--secondary-color);
    text-align: center;
}

.cta-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 2rem;
    line-height: 1.2;
}

.cta-download-btn {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 2rem;
}

.cta-download-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.availability-text {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .download-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

    .hero {
        padding: 6rem 1rem 3rem;
    }

    .feature-section,
    .testimonials-section,
    .privacy-section,
    .footer-cta {
        padding: 4rem 1rem;
    }

    .feature-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .feature-item,
    .testimonial-card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .nav-links {
        display: none;
    }

    .hero-title,
    .cta-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }
}

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

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

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

/* Focus states for accessibility */
button:focus,
a:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}