Golf Handicap Pro ⛳
body {
font-family: ‘Poppins’, sans-serif;
background: linear-gradient(135deg, #6DD5FA, #2980B9); /* Light blue to darker blue */
color: #333;
margin: 0;
padding: 20px;
display: flex;
justify-content: center;
align-items: flex-start;
min-height: 100vh;
box-sizing: border-box;
}
.container {
background-color: #ffffff;
padding: 30px 40px;
border-radius: 15px;
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
width: 100%;
max-width: 600px; /* Increased width slightly for table */
text-align: center;
/* — ADD THESE LINES FOR CENTERING THE CONTAINER ITSELF — */
margin-left: auto;
margin-right: auto;
/*margin-top: 20px; * Optional: adds some space above */
/*margin-bottom: 20px; * Optional: adds some space below */
/* — END OF ADDED LINES — */
}
header h1 {
color: #1E88E5; /* Vibrant Blue */
margin-bottom: 10px;
font-size: 2.5em;
font-weight: 700;
}
header p {
color: #555;
margin-bottom: 30px;
font-size: 1.1em;
}
.calculator-card {
margin-bottom: 30px;
}
.input-group {
margin-bottom: 20px;
text-align: left;
}
.input-group label {
display: block;
margin-bottom: 8px;
font-weight: 600;
color: #444;
}
.input-group input {
width: calc(100% – 24px);
padding: 12px;
border: 1px solid #ddd;
border-radius: 8px;
font-size: 1em;
transition: border-color 0.3s ease;
}
.input-group input:focus {
outline: none;
border-color: #6DD5FA;
box-shadow: 0 0 5px rgba(109, 213, 250, 0.5);
}
button#calculateBtn {
background: linear-gradient(45deg, #FF7043, #FF5722); /* Vibrant Orange/Red */
color: white;
border: none;
padding: 15px 30px;
border-radius: 25px;
font-size: 1.2em;
font-weight: 600;
cursor: pointer;
transition: transform 0.2s ease, box-shadow 0.2s ease;
box-shadow: 0 4px 15px rgba(255, 87, 34, 0.4);
width: 100%;
margin-top: 10px;
}
button#calculateBtn:hover {
transform: translateY(-2px);
box-shadow: 0 6px 20px rgba(255, 87, 34, 0.5);
}
.results-section {
background-color: #f9f9f9;
padding: 25px;
border-radius: 10px;
box-shadow: 0 5px 15px rgba(0,0,0,0.05);
margin-top: 30px;
}
.results-section h3 {
color: #1E88E5;
margin-top: 30px;
margin-bottom: 15px;
font-size: 1.5em;
border-bottom: 2px solid #6DD5FA;
padding-bottom: 5px;
display: inline-block;
}
.main-handicap-display {
display: flex;
justify-content: space-around;
align-items: center;
margin-bottom: 15px;
gap: 20px; /* Adds space between the two boxes */
}
.handicap-box {
padding: 15px 20px;
border-radius: 10px;
text-align: center;
flex-grow: 1;
}
.handicap-box.primary {
background-color: #1E88E5; /* Vibrant Blue */
color: white;
box-shadow: 0 4px 10px rgba(30, 136, 229, 0.4);
}
.handicap-box.secondary {
background-color: #e0e0e0; /* Light Grey */
color: #333;
box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
.handicap-box .label {
display: block;
font-size: 0.9em;
margin-bottom: 5px;
font-weight: 300;
}
.handicap-box.primary .label {
color: #e3f2fd; /* Lighter blue for label text */
}
.handicap-box .value {
display: block;
font-size: 2.8em; /* Larger for primary */
font-weight: 700;
}
.handicap-box.secondary .value {
font-size: 1.8em; /* Smaller for secondary */
color: #2980B9;
}
.info-text.results-info { /* Style for the new info text */
font-size: 0.85em;
color: #666;
margin-bottom: 25px;
padding: 10px;
background-color: #eef6ff;
border-left: 3px solid #6DD5FA;
text-align: left;
}
/* Table Styles */
.allowance-table {
width: 100%;
border-collapse: collapse; /* Behaves more like a table */
margin-top: 10px;
}
.table-header, .table-row {
display: grid;
grid-template-columns: 1fr 2fr 2fr 2fr; /* Adjust column ratios as needed */
padding: 10px 5px;
border-bottom: 1px solid #eee;
align-items: center;
}
.table-header {
background-color: #6DD5FA; /* Header background */
color: white;
font-weight: 600;
border-radius: 8px 8px 0 0; /* Rounded top corners */
}
.table-header div {
padding: 8px 5px;
}
.table-row div {
padding: 8px 5px;
text-align: center; /* Center text in cells */
}
.table-row div:nth-child(1) { font-weight: 600; color: #1E88E5;} /* Style percentage */
.table-row div:last-child { font-weight: 700; font-size: 1.1em; color: #FF5722; } /* Style final rounded handicap */
.table-row:nth-child(odd) {
background-color: #f9f9f9; /* Zebra striping for rows */
}
.table-row:hover {
background-color: #e9f5fe; /* Hover effect for rows */
}
/* Responsive adjustments */
@media (max-width: 600px) {
.container {
padding: 20px;
}
header h1 {
font-size: 2em;
}
button#calculateBtn {
font-size: 1.1em;
}
.main-handicap-display {
flex-direction: column; /* Stack main handicaps on small screens */
gap: 15px;
}
.handicap-box {
width: 100%; /* Full width for stacked boxes */
}
.handicap-box .value { font-size: 2.2em; }
.handicap-box.secondary .value { font-size: 1.6em; }
.table-header, .table-row { /* Make table more vertical on small screens */
grid-template-columns: 1fr 1.5fr 1.5fr 1.5fr; /* Adjust for smaller screens */
font-size: 0.9em; /* Smaller font in table */
}
.table-row div, .table-header div {
padding: 6px 3px;
}
}
Handicap Index:
Slope Rating:
Course Rating:
Course Par:
Calculate Handicap
Your Playing Handicap (100%)
–
Course Handicap (raw)
–
Playing Handicap Allowances:
document.addEventListener(‘DOMContentLoaded’, () => {
const handicapIndexInput = document.getElementById(‘handicapIndex’);
const slopeRatingInput = document.getElementById(‘slopeRating’);
const courseRatingInput = document.getElementById(‘courseRating’);
const courseParInput = document.getElementById(‘coursePar’);
const calculateBtn = document.getElementById(‘calculateBtn’);
const resultsSection = document.getElementById(‘resultsSection’);
const mainPlayingHandicapDiv = document.getElementById(‘mainPlayingHandicap’);
const rawCourseHandicapDiv = document.getElementById(‘rawCourseHandicap’);
const calculationBasisInfoDiv = document.getElementById(‘calculationBasisInfo’);
const allowanceTableBody = document.getElementById(‘allowanceTableBody’);
calculateBtn.addEventListener(‘click’, () => {
// Get input values
const index = parseFloat(handicapIndexInput.value);
const slope = parseInt(slopeRatingInput.value);
const courseRating = parseFloat(courseRatingInput.value);
const par = parseInt(courseParInput.value);
// Validate inputs
if (isNaN(index) || isNaN(slope) || isNaN(courseRating) || isNaN(par)) {
alert(‘Please enter valid numbers in all fields.’);
resultsSection.style.display = ‘none’;
return;
}
if (slope 155) {
// alert(‘Slope Rating typically ranges from 55 to 155. Calculation will proceed.’);
}
if (index 54) {
// alert(‘Handicap Index is typically between -10 and 54. Calculation will proceed.’);
}
// — WHS Based Calculation Refined —
// 1. Course Handicap (CH_raw): (Index * Slope) / 113
const ch_raw = (index * slope) / 113;
// 2. Course Rating – Par adjustment value
const cr_minus_par = courseRating – par;
// 3. Adjusted Course Handicap Base (ACH_base): CH_raw + (Course Rating – Par)
// This is the base figure that percentages are applied to for Playing Handicap.
const ach_base = ch_raw + cr_minus_par;
// Display the main numbers
// Prominent: 100% Playing Handicap (rounded)
const playingHandicap100Unrounded = ach_base * 1.0;
mainPlayingHandicapDiv.textContent = Math.round(playingHandicap100Unrounded);
// Secondary: Raw Course Handicap (to 2 decimal places)
rawCourseHandicapDiv.textContent = ch_raw.toFixed(2);
calculationBasisInfoDiv.textContent =
`Playing Handicaps are based on: ((Index * Slope / 113) + (Course Rating – Par)) * Allowance %.
Adjusted CH Base for percentages = ${ch_raw.toFixed(2)} + ${cr_minus_par.toFixed(1)} = ${ach_base.toFixed(2)}.`;
// Populate the allowance table
allowanceTableBody.innerHTML = ”; // Clear previous results
const percentages = [100, 95, 90, 85, 80, 75, 50]; // Added 50% for example
percentages.forEach(pct => {
const allowanceFactor = pct / 100;
const playingHandicapUnrounded = ach_base * allowanceFactor;
const finalPlayingHandicapRounded = Math.round(playingHandicapUnrounded);
const row = document.createElement(‘div’);
row.classList.add(‘table-row’);
row.innerHTML = `
${pct}%
${ach_base.toFixed(2)}
${playingHandicapUnrounded.toFixed(2)}
${finalPlayingHandicapRounded}
`;
allowanceTableBody.appendChild(row);
});
resultsSection.style.display = ‘block’;
if (window.innerWidth < 600) {
resultsSection.scrollIntoView({ behavior: 'smooth', block: 'start' });
}
});
});
Genesis Commercial Consultants 