/* -------------------- IMPORT FONTS -------------------- */
/* Import Merriweather, Manufacturing Consent, and Roboto fonts from Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Manufacturing+Consent&family=Merriweather:ital,opsz,wght@0,18..144,300..900;1,18..144,300..900&family=Roboto:ital,wght@0,100..900;1,100..900&display=swap');

/* -------------------- GLOBAL STYLES -------------------- */
/* Reset margin and padding for all elements; use border-box sizing; set base font family */
* {
    box-sizing: border-box;
    margin: 0px;
    padding: 0px;
    font-family: "Merriweather", "serif", "san-serif"; /* Note: 'san-serif' likely a typo, should be 'sans-serif' */
}

/* -------------------- HEADER -------------------- */
/* Fixed header at the top with white background, flex layout, padding and shadow */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4rem;
    background-color: white;
    display: flex;
    justify-content: space-between; /* space between logo and navigation */
    align-items: center;
    padding: 0 40px;
    z-index: 1000; /* ensure header stays on top */
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

/* -------------------- MAIN LAYOUT -------------------- */
/* Add top padding to avoid content hidden behind fixed header */
.main {
    padding-top: 5rem;
}

/* Navigation container styled as flex with even spacing */
.navigation {
    display: flex;
    width: 40rem;
    justify-content: space-evenly;
}

/* Navigation links style */
.navigation a {
    text-decoration: none;
    color: darkblue;
    font-weight: 500;
    transition: transform 0.5s ease-in-out;
}

/* Navigation links hover effect: color change, scale up and border top */
.navigation a:hover {
    color: #3949AB;
    transform: scale(1.15);
    border-top: 3px solid rgb(211, 207, 207);
}

/* Logo text with multiple color declarations, last one applies */
.logo {
    font-size: 1.5rem;
    color: #3949AB;
    color: #5E35B1;
    color: darkblue; /* final applied color */
}

/* -------------------- BOXES -------------------- */
/* Gray box with fixed height and light background for spacing or section breaks */
.gray-box {
    max-width: 100%;
    height: 3rem;
    background-color: rgb(246, 243, 243);
    margin-top: 4rem;
}

/* White box with flexible height */
.white-box {
    max-width: 100%;
    max-height: fit-content;
}

/* Heading inside white box: centered, dark blue color, with margin and padding */
.white-box h1 {
    color: darkblue;
    text-align: center;
    font-size: 2rem;
    margin: 1rem;
    padding: 1rem;
}

/* Paragraph inside white box: centered, large font */
.white-box p {
    text-align: center;
    font-size: large;
}

/* -------------------- GALLERY GRID -------------------- */
/* Grid container for gallery items with 4 equal columns, spacing, and centered content */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);  /* 4 columns */
    gap: 10px;  /* space between grid items */
    justify-items: center;
    padding: 2rem;
}

/* Individual gallery images styling: responsive width, max width, rounded corners, smooth hover scale */
.gallery-grid img {
    width: 100%; /* fill grid cell */
    max-width: 250px;
    height: auto;
    border-radius: 8px;
    transition: transform 0.3s ease-in-out;
}

/* Hover effect on gallery images for interactivity */
.gallery-grid img:hover {
    transform: scale(1.05);
}

/* Center captions below images */
.gallery-grid figcaption {
    text-align: center;
    margin-top: 0.5rem;
    font-size: 1rem;
    color: #3949AB;
}

/* -------------------- FOOTER -------------------- */
/* Gradient background from dark to lighter blue, white text, horizontal flex layout */
footer {
    background: linear-gradient(
        to right,
        #0a1a3f,  /* Very dark navy blue */
        #122b6b,  /* Deep blue */
        #1f4aa3   /* Slightly lighter blue */
    );
    color: white;
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 4rem;
}

/* Footer icon links styled in whitesmoke, no underline */
.icon-cap {
    color: whitesmoke;
    text-decoration: none;
}

/* Footer icon links get underline on hover */
.icon-cap:hover {
    border-bottom: 3px solid whitesmoke;
}

/* ----------- RESPONSIVENESS ----------- */

/* Adjust styles for screens 768px and smaller (mobile/tablet) */
@media (max-width: 768px) {
    /* Stack header vertically and add padding */
    header {
        flex-direction: column;
        height: auto;
        padding: 1rem;
    }
    /* Navigation full width, centered, with spacing */
    .navigation {
        width: 100%;
        justify-content: center;
        gap: 1rem;
    }
    /* Gallery grid changes to 2 columns */
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);  /* 2 columns */
    }
    /* Footer stacks vertically with padding */
    footer {
        flex-direction: column;
        height: auto;
        padding: 1rem;
    }
}