:root {
    --primary-color: #1a73e8;
    --text-color: #333;
    --background-color: #fff;
    --secondary-background: #f8f9fa;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

/* Header Styles */
.header {
    background-color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo img {
    height: 40px;
}

.logo-text {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: background-color 0.3s, color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    background-color: var(--primary-color);
    color: white;
}

/* Main content styles */
main {
    min-height: calc(100vh - 160px);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Hero section specific styles */
.hero {
    text-align: center;
    padding: 3rem 0;
    margin: 0 auto;
}

.hero-content {
    margin: 0 a1uto;
    padding: 0 1rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.platform-downloads {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.download-button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    transition: background-color 0.3s;
    text-align: center;
    min-width: 120px;
}

.download-button:hover {
    background-color: #1557b0;
}

/* Features section */
.features-section {
    padding: 4rem 1rem;
}

.footer {
    background-color: #f7fafc;
    padding: 1.5rem 0;
    margin-top: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s;
}

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

.copyright {
    text-align: center;
    color: var(--text-color);
    opacity: 0.8;
    font-size: 0.9rem;
}

.icp {
    display: inline-block;
    color: var(--text-color);
    opacity: 0.8;
    text-decoration: none;
    margin-left: 1rem;
    font-size: 0.9rem;
}

.icp:hover {
    text-decoration: underline;
}

/* Common components */
.button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    background-color: var(--primary-color);
    color: white;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.button:hover {
    background-color: #1557b0;
    transform: translateY(-2px);
}

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

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

/* Additional Components */
.card {
    background: var(--background-color);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

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

.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Additional Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* Enhanced Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Grid System */
.grid {
    display: grid;
    gap: 1rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media screen and (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
    h5 { font-size: 1.1rem; }
    h6 { font-size: 1rem; }
}

@media (max-width: 768px) {
    .header {
        margin-bottom: 1rem;
    }

    .nav-container {
        padding: 0.5rem 1rem;
    }
    
    .logo img {
        height: 24px;
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    .nav-links {
        gap: 0.5rem;
    }
    
    .nav-links a {
        padding: 0.35rem 0.75rem;
        font-size: 0.9rem;
    }

    .hero {
        padding: 2rem 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }

    .platform-downloads {
        flex-direction: column;
        align-items: stretch;
        padding: 0 1rem;
    }

    .download-button {
        width: 100%;
        margin: 0.5rem 0;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .footer-links {
        flex-direction: row;
        justify-content: center;
        gap: 1.5rem;
    }

    .copyright {
        font-size: 0.9rem;
    }
}