/* 
Define the Averta fonts: Regular and Bold 
These are used throughout the site for consistency.
*/
@font-face {
    font-family: 'Averta';
    src: url('fonts/Averta-Regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'Averta';
    src: url('fonts/Averta-Bold.ttf') format('truetype');
    font-weight: bold;
    font-style: normal;
}

/* General Styles */
body {
    font-family: 'Averta', Arial, sans-serif;
    background-color: #fff; /* White background */
    color: #333; /* Text color */
    margin: 0; /* Remove default margin */
    padding: 0; /* Remove default padding */
}

/* 
Header Section: 
Fixed header with a blurred background effect for a modern look.
*/
header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000; /* Ensure it stays above other elements */
}

.header-container {
    width: 100%;
    backdrop-filter: blur(8px); /* Apply blur effect */
    -webkit-backdrop-filter: blur(8px); /* Safari support */
    background-color: #ffffffb3; /* Semi-transparent background */
    padding-top: 20px;
}

/* Navigation Bar Styles */
.navbar {
    background-color: #4d6bdd; /* Dark blue background */
    display: flex;
    justify-content: space-between; /* Distribute items evenly */
    align-items: center; /* Vertically center items */
    margin: 0 20px;
    padding: 5px 20px;
    border-radius: 10px; /* Rounded corners */
}

/* Brand Link Styles */
.nav-brand a {
    color: #fff; /* White text */
    font-size: 24px; /* Large font size */
    font-weight: normal; /* Use Averta-Bold */
    text-decoration: none; /* No underline */
}

/* Navigation Menu Styles */
.nav-menu {
    list-style: none; /* Remove bullets */
    display: flex;
    gap: 20px; /* Space between menu items */
}

/* Menu Item Styles */
.nav-menu li {
    display: inline; /* Items are displayed in a row */
}

/* Menu Links */
.nav-menu a {
    color: #fff; /* White text */
    text-decoration: none; /* No underline */
    font-size: 16px; /* Standard font size */
    font-weight: normal; /* Use Averta-Regular */
}

/* Button in the Navigation Menu */
.nav-menu .login-btn {
    background-color: #fdd835; /* Bright yellow button */
    padding: 8px 16px; /* Button padding */
    border-radius: 5px; /* Rounded corners */
    color: #333; /* Dark text for contrast */
    font-weight: bold;
}

.nav-menu .login-btn:hover {
    background-color: #fbc02d; /* Hover effect: darken yellow */
}

/* Main Container Styles */
.container {
    max-width: 1000px; /* Limit container width */
    margin: 100px auto 20px; /* Center content and adjust for header */
    padding: 20px;
}

/* Intro Section Styles */
.intro-section {
    text-align: left;
    margin-bottom: 30px;
}

/* Heading in Intro Section */
.intro-section h1 {
    color: #15284B; /* Dark blue text */
    font-size: 48px;
    font-weight: bold; /* Use Averta-Bold */
    margin: 0;
}

/* Paragraph in Intro Section */
.intro-section p {
    color: #333;
    font-size: 20px;
    line-height: 1.5; /* Increased line spacing */
}

/* Tool Section Styling (Form Section) */
.tool-section {
    background-color: #f9f9fa; /* Light grey background */
    padding: 20px;
    border-radius: 8px; /* Rounded corners */
    border: 1px solid #f0f0f2; /* Light grey border */
}

.tool-section h2 {
    color: #15284B;
    font-weight: bold; /* Use Averta-Bold */
    margin-top: 0;
}

/* Form Styles */
form {
    margin-bottom: 20px; /* Spacing at the bottom */
}

/* Form Group (Each Input + Label) */
.form-group {
    margin-bottom: 25px;
    text-align: left;
    font-size: 18px;
}

/* Form Labels */
label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold; /* Use Averta-Bold */
}

/* Input Fields */
input[type="number"] {
    width: 100%; /* Full width */
    padding: 8px;
    box-sizing: border-box;
    font-family: 'Averta', Arial, sans-serif;
    font-weight: normal; /* Use Averta-Regular */
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 18px;
}

/* 
Remove Number Input Spinners: 
Hides the default number increment buttons.
*/
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none; /* Chrome, Safari, Edge */
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield; /* Firefox */
}

/* Submit Button Styling */
button {
    background-color: #4d6bdd;
    color: #fff; /* White text */
    padding: 10px 15px;
    border: none;
    cursor: pointer;
    width: 100%;
    border-radius: 5px; /* Rounded corners */
    font-family: 'Averta', Arial, sans-serif;
    font-size: 18px;
    font-weight: normal;
}

button:hover {
    background-color: #3c59a1; /* Darker shade on hover */
}

/* Results Section Styling */
#results-section {
    display: none; /* Hidden by default */
}

.results-section {
    margin-top: 30px;
    font-size: 18px;
    padding: 20px;
    background-color: #fff; /* White background */
    border: 1px solid #f0f0f2; /* Grey border */
    border-radius: 8px; /* Rounded corners */
}

.results-section h2 {
    color: #15284B;
    font-weight: bold; /* Use Averta-Bold */
    margin-top: 0;
}

/* Chart Canvas Styling */
canvas {
    margin-top: 20px;
}

/* Tooltip Icon Styling */
.tooltip-icon {
    position: relative;
    display: inline-block;
    cursor: pointer;
    margin-left: 8px;
}

.tooltip-icon .question-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #edf0fc; /* Light blue background */
    border: 1px solid #dbdff0; /* Light grey border */
    border-radius: 50%;
    width: 22px;
    height: 22px;
    font-size: 14px;
    color: #4d6bdd; /* Dark blue text */
    font-weight: bold;
}

/* Tooltip Text Styling */
.tooltip-icon .tooltip-text {
    visibility: hidden; /* Hidden by default */
    width: 250px;
    background-color: #FFFFFF;
    color: #757E91; /* Grey text */
    text-align: left;
    border-radius: 6px;
    border: 1px solid #dbdff0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    padding: 10px;
    position: absolute;
    z-index: 1;
    bottom: 125%; /* Position above the icon */
    left: 50%;
    margin-left: -125px; /* Center align tooltip */
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 14px;
}

/* Tooltip Arrow */
.tooltip-icon .tooltip-text::after {
    content: "";
    position: absolute;
    top: 100%; /* Arrow at the bottom of the tooltip */
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #FFFFFF transparent transparent transparent;
}

/* Tooltip Show on Hover */
.tooltip-icon:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* General Styling for Explanation Section */
.output-section {
    margin-top: 30px;
}

.output-section hr {
    margin: 50px 0;
    background-color: #e8eaed; /* Light grey */
    height: 2px;
    border: none;
}

.output-section h2 {
    color: #15284B;
    font-weight: bold;
    margin-top: 40px;
    font-size: 26px;
    line-height: 34px;
}

.output-section a {
    color: #4560c7; /* Link color */
}

.output-section p {
    color: #333;
    font-size: 18px;
    line-height: 1.6;
}

/* Footer Styling */
.footer {
    background-color: #edf0fc; /* Light blue background */
    color: #4d6bdd; /* Dark blue text */
    text-align: center;
    padding: 5px 5px;
    margin-top: 40px;
    border-radius: 10px; /* Rounded corners */
}

.footer a {
    color: #4d6bdd; /* Dark blue link color */
    text-decoration: none;
    font-weight: bold;
}

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

/* Prevent Horizontal Scrolling */
html, body {
    overflow-x: hidden;
}

/* Mobile Styles: Adjustments for Small Screens */
@media only screen and (max-width: 768px) {

    /* Adjust navbar for mobile */
    header {
        position: relative;
        margin: 0;
    }

    .navbar {
        padding: 20px 10px;
    }

    .nav-menu {
        display: none; /* Hide the navigation menu on mobile */
    }

    /* Ensure container is full width */
    .container {
        margin: 10px auto 20px;
        padding: 20px;
        max-width: 100%; /* Full width on mobile */
        box-sizing: border-box; /* Include padding in width */
    }

    /* Smaller Heading for Mobile */
    .intro-section h1 {
        font-size: 32px;
        margin-top: 0;
    }

    /* Adjust paragraph size for mobile */
    .intro-section p {
        font-size: 18px;
    }

    /* Responsive Chart on Mobile */
    canvas#chart {
        width: 100%;
        height: 300px; /* Adjust height for mobile */
    }

    /* Full-Width Inputs and Button on Mobile */
    form input[type="number"],
    form button {
        width: 100%;
    }
}