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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    line-height: 1.6;
    color: #333;
    background-color: #f4f7f6; /* Light, slightly off-white background */
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* Ensure footer stays at bottom */
}

/* Banner Styling */
.banner {
    /* --- IMPORTANT: REPLACE THIS URL --- */
    background-image: linear-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.1)), url('img/banner.png'); /* Example placeholder */
    background-size: cover;
    background-position: center center;
    color: white;
    text-align: center;
    padding: 5rem 1rem; /* More padding for impact */
}

.banner-content h1 {
    font-size: 2.5rem; /* Responsive font size, base */
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.6);
}

.banner-content p {
    font-size: 1.1rem;
    font-weight: 300;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Main Content Area */
main {
    flex-grow: 1; /* Allows main content to expand and push footer down */
    padding: 2rem 1rem;
}

.app-launcher-container {
    max-width: 900px; /* Max width for content */
    margin: 0 auto;   /* Center the container */
    background-color: #ffffff;
    padding: 2rem;
    border-radius: 12px; /* Nice rounded edges */
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08); /* Subtle shadow for depth */
}

.app-launcher-container h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50; /* Darker, professional heading color */
    font-size: 1.8rem;
    font-weight: 600;
}

/* App Button Grid */
.button-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); /* Responsive grid */
    gap: 1.5rem; /* Space between buttons */
}

.app-button {
    background-color: #3498db; /* A pleasant blue */
    color: white;
    padding: 1rem 1.5rem;
    text-decoration: none;
    border-radius: 8px;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.2s ease;
    display: flex; /* For icon alignment if you add them */
    flex-direction: column; /* Stack icon and text */
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.app-button:hover,
.app-button:focus {
    background-color: #2980b9; /* Darker blue on hover/focus */
    transform: translateY(-3px); /* Slight lift effect */
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.app-button:active {
    transform: translateY(-1px);
}

.app-icon { /* Style if you add <img> icons inside buttons */
    width: 40px; /* Adjust as needed */
    height: 40px;
    margin-bottom: 0.5rem;
}

/* Footer Styling */
footer {
    background-color: #2c3e50; /* Dark footer background */
    color: #ecf0f1;      /* Light text color for footer */
    text-align: center;
    padding: 1.5rem 1rem;
    font-size: 0.9rem;
}

footer p {
    margin-bottom: 0.5rem;
}

footer a {
    color: #3498db; /* Link color consistent with buttons */
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .banner {
        padding: 4rem 1rem;
    }
    .banner-content h1 {
        font-size: 2rem;
    }
    .app-launcher-container h2 {
        font-size: 1.5rem;
    }
    .button-grid {
        grid-template-columns: 1fr; /* Stack buttons on smaller screens */
        gap: 1rem;
    }
    .app-button {
        padding: 0.8rem 1.2rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .banner {
        padding: 3rem 1rem;
    }
    .banner-content h1 {
        font-size: 1.8rem;
    }
    main {
        padding: 1.5rem 0.5rem;
    }
    .app-launcher-container {
        padding: 1.5rem;
        border-radius: 8px;
    }
}