:root {
    --primary-color: #4CAF50; /* Green */
    --secondary-color: #2196F3; /* Blue */
    --accent-color: #FFC107; /* Amber */
    --text-color: #333;
    --background-color: #f4f7f6;
    --card-background: #ffffff;
    --border-color: #ddd;
    --shadow-color: rgba(0, 0, 0, 0.08);
}

.golf-handicap-calculator {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    max-width: 800px;
    margin: 20px auto;
    padding: 30px;
    background-color: var(--card-background);
    border-radius: 12px;
    box-shadow: 0 6px 20px var(--shadow-color);
    color: var(--text-color);
    line-height: 1.6;
    box-sizing: border-box;
}



.input-group {
    margin-bottom: 30px;
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--background-color);
}

.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 15px;
}

.form-field {
    flex: 1;
    min-width: 280px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1em;
    box-sizing: border-box;
    transition: border-color 0.3s ease;
    background-color: var(--card-background);
}

input[type="text"]:focus,
input[type="number"]:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.2);
}

.help-icon {
    display: inline-block;
    width: 18px;
    height: 18px;
    background-color: var(--accent-color);
    color: white;
    border-radius: 50%;
    text-align: center;
    font-size: 0.9em;
    font-weight: bold;
    line-height: 18px;
    cursor: help;
    margin-left: 5px;
    position: relative;
    top: -1px;
}

.btn {
    display: block;
    width: fit-content;
    margin: 25px auto 15px auto;
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    text-align: center;
}

.primary-btn {
    background-color: var(--primary-color);
    color: white;
}

.primary-btn:hover {
    background-color: #43a047; /* Darker green */
    transform: translateY(-2px);
}

.add-btn {
    background-color: var(--secondary-color);
    color: white;
    margin-top: 20px;
    margin-left: 0;
}

.add-btn:hover {
    background-color: #1976d2; /* Darker blue */
    transform: translateY(-2px);
}

.remove-score-btn {
    background-color: #f44336; /* Red */
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 5px;
    font-size: 0.9em;
    cursor: pointer;
    margin-left: 10px;
    transition: background-color 0.3s ease;
}

.remove-score-btn:hover {
    background-color: #d32f2f; /* Darker red */
}

.score-input-row {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 15px;
    align-items: center;
}

.score-input-row .form-field {
    flex: 1;
    min-width: 180px; /* Adjust for score and differential */
}

.score-input-row .form-field:last-child {
    flex-grow: 0; /* Don't let the button take full width */
    min-width: unset;
}

.results-section {
    margin-top: 40px;
    padding: 25px;
    border: 1px solid var(--primary-color);
    border-radius: 10px;
    background-color: var(--background-color);
    text-align: center;
}

.result-box {
    background-color: var(--card-background);
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
    box-shadow: 0 3px 10px var(--shadow-color);
}

.result-box p {
    font-size: 1.1em;
    margin: 10px 0;
}

.result-box span {
    font-weight: bold;
    color: var(--primary-color);
    font-size: 1.2em;
}

.chart-container {
    margin-top: 30px;
    background-color: var(--card-background);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 3px 10px var(--shadow-color);
}

.bar-chart {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    height: 150px;
    background-color: #e0e0e0;
    border-radius: 5px;
    padding: 10px;
    margin-top: 20px;
    position: relative;
    overflow: hidden; /* Ensure bars don't exceed container */
}

.bar {
    flex: 1;
    background-color: var(--secondary-color);
    margin: 0 2px;
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    border-radius: 3px 3px 0 0;
    transition: height 0.5s ease-out;
}

.bar-label {
    position: absolute;
    top: -20px;
    font-size: 0.8em;
    color: var(--text-color);
    white-space: nowrap;
}

.bar-value {
    position: absolute;
    bottom: 5px;
    color: white;
    font-size: 0.75em;
    font-weight: bold;
}

.insights {
    margin-top: 30px;
    background-color: var(--card-background);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 3px 10px var(--shadow-color);
    text-align: left;
}

.insights p {
    margin-bottom: 10px;
    font-size: 1em;
}

.insights strong {
    color: var(--primary-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .golf-handicap-calculator {
        padding: 20px;
        margin: 10px;
    }

    h2 {
        font-size: 1.8em;
    }

    h3 {
        font-size: 1.4em;
    }

    .form-row, .score-input-row {
        flex-direction: column;
        gap: 15px;
    }

    .form-field, .score-input-row .form-field {
        min-width: 100%;
    }

    .btn {
        width: 100%;
        padding: 12px 20px;
    }

    .score-input-row .remove-score-btn {
        margin-left: 0;
        width: 100%;
    }

    .bar-chart {
        height: 120px;
    }

    .bar-label {
        font-size: 0.7em;
        top: -15px;
    }
    .bar-value {
        font-size: 0.7em;
    }
}

@media (max-width: 480px) {
    .golf-handicap-calculator {
        padding: 15px;
    }

    h2 {
        font-size: 1.6em;
    }

    h3 {
        font-size: 1.3em;
    }

    .input-group, .results-section, .chart-container, .insights {
        padding: 15px;
    }
}