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

:root {
    --primary-color: #2563eb;
    --secondary-color: #7c3aed;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    scroll-behavior: smooth;
}

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

/* Navigation */
.nav {
    padding: 1.5rem 0;
}

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

.logo {
    font-size: 1.75rem;
    font-weight: bold;
    color: var(--white);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    transition: opacity 0.3s;
    font-weight: 500;
}

.nav-links a:hover {
    opacity: 0.8;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.hero-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 6rem 20px;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    letter-spacing: -2px;
    animation: fadeInUp 0.8s ease-out;
}

.hero .hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0.95;
    font-weight: 400;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero .hero-description {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    font-weight: 300;
    letter-spacing: 0.5px;
    animation: fadeInUp 0.8s ease-out 0.3s backwards;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

/* Buttons */
.btn {
    padding: 1rem 2.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
}

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

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

/* Features Section */
.features {
    padding: 7rem 0;
    background: var(--white);
}

.features h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 4rem;
    font-weight: 700;
    color: var(--text-dark);
}

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

.feature-card {
    text-align: center;
    padding: 3rem 2rem;
    border-radius: 16px;
    background: var(--bg-light);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #e5e7eb;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
    font-size: 1.1rem;
    line-height: 1.7;
}

/* Download Section */
.download {
    padding: 7rem 0;
    background: var(--bg-light);
    text-align: center;
}

.download h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: var(--text-dark);
}

.download-subtitle {
    font-size: 1.35rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    font-weight: 500;
}

.download-info {
    max-width: 900px;
    margin: 0 auto;
}

.download-info > p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    line-height: 1.8;
}

.platforms {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-bottom: 4rem;
}

.platform-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #e5e7eb;
}

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

.platform-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.platform-card h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 600;
}

.platform-card p {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.coming-soon {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: 600;
    opacity: 0.9;
}

.early-access {
    background: var(--white);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.early-access p {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.early-access .btn {
    margin-top: 0.5rem;
}

/* About Section */
.about {
    padding: 7rem 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.about h2 {
    font-size: 3rem;
    margin-bottom: 2rem;
    font-weight: 700;
    color: var(--text-dark);
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    line-height: 1.8;
}

.tech-stack {
    margin-top: 2rem;
    padding: 2rem;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.tech-stack h3 {
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
    color: var(--text-dark);
    font-weight: 600;
}

.tech-stack ul {
    list-style: none;
    padding: 0;
}

.tech-stack li {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    padding-left: 1.75rem;
    position: relative;
    line-height: 1.6;
}

.tech-stack li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.25rem;
}

.placeholder-image {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 16px;
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
}

/* Contact Section */
.contact {
    padding: 7rem 0;
    background: var(--bg-light);
    text-align: center;
}

.contact h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.contact > .container > p {
    font-size: 1.35rem;
    color: var(--text-light);
    margin-bottom: 3rem;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-top: 2.5rem;
}

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

.contact-item strong {
    color: var(--primary-color);
    font-weight: 600;
}

.email-reveal-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    margin-left: 0.5rem;
}

.email-reveal-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.2);
}

.email-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 600;
    margin-left: 0.5rem;
    transition: opacity 0.3s;
}

.email-link:hover {
    opacity: 0.8;
    text-decoration: underline;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 2.5rem 0;
    text-align: center;
}

.footer p {
    opacity: 0.8;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: 1.5rem;
        font-size: 0.9rem;
    }

    .logo {
        font-size: 1.5rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .features h2,
    .about h2,
    .contact h2 {
        font-size: 2.25rem;
    }

    .features {
        padding: 5rem 0;
    }

    .about {
        padding: 5rem 0;
    }

    .contact {
        padding: 5rem 0;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .contact-info {
        flex-direction: column;
        gap: 1.5rem;
    }

    .features-grid {
        gap: 2rem;
    }
}

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

    .hero h1 {
        font-size: 2rem;
        letter-spacing: -1px;
    }

    .hero p {
        font-size: 1rem;
    }
}