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

:root {
    --primary-color: #007AFF;
    --secondary-color: #f2f2f7;
    --text-dark: #1d1d1d;
    --text-light: #666666;
    --white: #ffffff;
    --border-color: #e5e5ea;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

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

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

.nav-links a:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    padding: 120px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, var(--secondary-color) 100%);
    text-align: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-dark);
    line-height: 1.2;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #0051D5;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 122, 255, 0.2);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-small {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* About Section */
.about {
    padding: 80px 0;
    background-color: var(--white);
}

.about h2,
.apps h2,
.contact h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    text-align: center;
    color: var(--text-dark);
}

.about p {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* Apps Section */
.apps {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.app-card {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.app-card h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
}

.app-card p {
    color: var(--text-light);
    flex-grow: 1;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, var(--secondary-color) 100%);
    text-align: center;
}

.contact h2 {
    margin-bottom: 20px;
}

.contact p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 30px;
}

/* Footer */
.footer {
    background-color: var(--text-dark);
    color: var(--white);
    padding: 40px 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-links span {
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: 15px;
        font-size: 0.9rem;
    }

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

    .subtitle {
        font-size: 1rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .about h2,
    .apps h2,
    .contact h2 {
        font-size: 2rem;
    }

    .apps-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .nav-links {
        gap: 10px;
        font-size: 0.8rem;
    }

    .logo {
        font-size: 1.2rem;
    }

    .hero {
        padding: 60px 0;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .about,
    .apps,
    .contact {
        padding: 50px 0;
    }
}