body {
    font-family: 'Arial', sans-serif;
    background-color: #e0e0e0; /* Light background for contrast */
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: #ffffff; /* White background for the main content */
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.2); /* Softer shadow for depth */
}

h1, h2, h3 {
    color: #2c3e50; /* Dark blue-gray for headers */
    text-align: center;
}

h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
}

h2 {
    font-size: 2em;
    margin-top: 20px;
}

label {
    font-weight: bold;
    display: block;
    margin-top: 15px;
}

input[type="range"] {
    width: 100%;
    -webkit-appearance: none;
    background: #ccc; /* Gray background for range */
    height: 8px; /* Height for the slider */
    border-radius: 5px; /* Rounded edges */
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px; /* Width of the thumb */
    height: 20px; /* Height of the thumb */
    background: #2980b9; /* Blue thumb color */
    border-radius: 50%; /* Circular thumb */
    cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: #2980b9;
    border-radius: 50%;
    cursor: pointer;
}

.slider-container {
    position: relative;
    width: 100%;
}

.notches {
    position: relative;
    height: 20px; /* Height of the notch line */
    margin-top: -10px; /* Adjust to overlap the slider */
}

.notch {
    position: absolute;
    height: 10px; /* Height of the notch */
    background-color: #2980b9; /* Color of the notch */
    width: 2px; /* Width of the notch */
    bottom: 0; /* Align to the bottom of the container */
}

#results {
    margin-top: 20px;
    padding: 15px;
    background: #f9f9f9; /* Light gray for results section */
    border: 1px solid #ddd; /* Border around results */
    border-radius: 5px; /* Slight rounding */
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

table, th, td {
    border: 1px solid #ddd;
}

th, td {
    padding: 10px;
    text-align: center;
}

th {
    background-color: #2980b9; /* Blue header background */
    color: white; /* White text for headers */
}

td {
    background-color: #f0f0f0; /* Light gray for table cells */
}

.digital-display {
    margin-top: 20px;
    padding: 15px;
    background: #f9f9f9; /* Light gray for digital display */
    border: 1px solid #ddd;
    border-radius: 5px;
    text-align: center;
}

.sound-button {
    margin: 5px;
    padding: 12px 20px;
    background-color: #2980b9; /* Blue button color */
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s; /* Transition for hover effect */
}

.sound-button:hover {
    background-color: #1c669c; /* Darker blue on hover */
}

button {
    padding: 12px 20px;
    background-color: #27ae60; /* Green button for calculations */
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s; /* Transition for hover effect */
}

button:hover {
    background-color: #1e7a50; /* Darker green on hover */
}


/* Header styling */
header {
    background-color: #333;
    color: #fff;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 5px;
}

.header-content h1 {
    font-size: 24px;
    margin: 0;
}

.github-link {
    color: #fff;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.github-link:hover {
    text-decoration: underline;
}

.github-logo {
    width: 24px;
    height: 24px;
    margin-right: 8px;
}