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

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --background-color: #f8fafc;
    --card-background: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-color);
    font-size: 16px;
}

/* Container and Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #3b82f6 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.1;
}

.site-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.site-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

/* Main Content */
.main-content {
    padding: 80px 0;
}

/* Apps Grid */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

/* App Cards */
.app-card {
    background: var(--card-background);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    border: 1px solid var(--border-color);
}

.app-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.app-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), #3b82f6);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 2rem;
    color: white;
}

.app-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.app-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}

.app-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 32px;
}

.feature-tag {
    background: var(--background-color);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.app-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-color);
    color: white;
    padding: 14px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.app-button:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.app-button i {
    font-size: 0.875rem;
}

/* Footer */
.footer {
    background: var(--card-background);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        padding: 60px 0;
    }
    
    .site-title {
        font-size: 2.25rem;
    }
    
    .site-subtitle {
        font-size: 1rem;
    }
    
    .main-content {
        padding: 60px 0;
    }
    
    .apps-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .app-card {
        padding: 30px;
    }
    
    .container {
        padding: 0 20px;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 40px 0;
    }
    
    .site-title {
        font-size: 1.75rem;
    }
    
    .app-card {
        padding: 24px;
    }
    
    .app-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .app-title {
        font-size: 1.5rem;
    }
}

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

.app-card {
    animation: fadeInUp 0.6s ease-out backwards;
}

.app-card:nth-child(2) {
    animation-delay: 0.2s;
}

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

/* Focus styles for accessibility */
.app-button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header, .footer {
        background: none;
        color: black;
    }
    
    .app-button {
        background: none;
        color: black;
        border: 1px solid black;
    }
}