/* -------------------- IMPORT FONTS -------------------- */
/* Import Merriweather font family 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, set border-box sizing, and base font family */
* {
    box-sizing: border-box;
    margin: 0px;
    padding: 0px;
    font-family: "Merriweather", "serif", "san-serif"; /* Note: "san-serif" typo, should be "sans-serif" */
}

/* -------------------- HEADER -------------------- */
/* Fixed header bar at top, full width, white background, with subtle 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; /* appear on top */
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);   
}

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

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

/* Style navigation links with no underline, dark blue color, and smooth scaling on hover */
.navigation a {
    text-decoration: none;
    color: darkblue;
    font-weight: 500;
    transition: transform 0.5s ease-in-out;
}

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

/* Logo text styling - multiple color declarations, the last (darkblue) takes effect */
.logo {
    font-size: 1.5rem;
    color: #3949AB;
    color: #5E35B1;
    color: darkblue; /* This color is applied */
}

/* -------------------- BOX STYLES -------------------- */

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

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

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

/* Paragraph inside white box: centered, fixed width, large font */
.white-box p {
    width: 38rem;
    text-align: center;
    font-size: large;
    margin: 0px auto; /* center horizontally */
}

/* -------------------- CONTACT FORM -------------------- */
/* Container styling: centered, fixed width & height, light background, rounded corners, subtle shadow */
.contact-form {
    margin: 3rem auto;
    padding: 2rem;
    width: 40rem;
    height: 53rem;
    background-color: rgb(246, 243, 243);
    border-radius: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);   
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Form groups arranged vertically, font styling */
.form-group {
    display: flex;
    flex-direction: column;
    font-size: 1rem;
    color: #333;
}

/* Labels in form groups: bottom margin, bold, dark blue */
.form-group label {
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: darkblue;
}

/* Input fields and textarea styling: padding, border, rounded corners, font size, smooth border-color transition */
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form input[type="range"],
.contact-form textarea {
    padding: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

/* Input focus styling: purple border, no outline */
.contact-form input[type="text"]:focus,
.contact-form input[type="email"]:focus,
.contact-form textarea:focus {
    border-color: #5E35B1;
    outline: none;
}

/* Options container arranged in column */
.options {
    display: flex;
    flex-direction: column;
}

/* Option labels normal weight and pointer cursor */
.options label {
    font-weight: normal;
    cursor: pointer;
}

/* Submit button styling: purple background, white text, padding, rounded corners, bold font, pointer cursor, transition */
.submit-btn {
    margin-top: 1.5rem;
    background-color: #5E35B1;
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

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

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

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

/* -------------------- RESPONSIVE STYLES -------------------- */
/* On mobile screens under 768px wide */
@media (max-width: 768px) {
    /* Header stacked vertically, padding added */
    header {
        flex-direction: column;
        height: auto;
        padding: 1rem;
    }
    /* Navigation takes full width, centered with gap */
    .navigation {
        width: 100%;
        justify-content: center;
        gap: 1rem;
    }
    /* Contact form becomes 80% width */
    .contact-form {
        width: 80%;
    }
    /* White box paragraph width increases */
    .white-box p {
        width: 80%;
    }
    /* Footer stacks vertically, height auto and padding added */
    footer {
        flex-direction: column;
        height: auto;
        padding: 1rem;
    }
}