/**
 * GST Calculator CSS
 *
 * Styles for the GST Calculator including dark/light mode support
 * Unique teal/gold color scheme
 */

/* Variables */
:root {
    --primary: #16A34A; /* Green primary */
    --primary-hover: #15803D; /* Darker green */
    --secondary: #EAB308; /* Gold accent */
    --accent: #0891B2; /* Teal accent */
    --text-color: #333333;
    --bg-color: #FFFFFF;
    --input-bg: #F9FAFB;
    --border-color: #E5E7EB;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --card-bg: #FFFFFF;
    --chart-bg: rgba(22, 163, 74, 0.1);
    --slider-track: #E5E7EB;
    --toggle-bg: #E5E7EB;
    --toggle-circle: #FFFFFF;
}

@media (prefers-color-scheme: dark) {
    :root {
        --text-color: #F3F4F6;
        --bg-color: #1F2937;
        --input-bg: #374151;
        --border-color: #4B5563;
        --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
        --card-bg: #111827;
        --chart-bg: rgba(22, 163, 74, 0.2);
        --slider-track: #4B5563;
        --toggle-bg: #4B5563;
        --toggle-circle: #E5E7EB;
    }
}

/* Main Container */
.gst-calculator {
    font-family: 'Inter', sans-serif;
    max-width: 1200px;
    margin: 0 auto;
    color: var(--text-color);
    background-color: var(--bg-color);
    padding: 20px;
    border-radius: 8px;
}

/* Calculator Header */
.calculator-header {
    text-align: center;
    margin-bottom: 30px;
}

.calculator-header h2 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.calculator-header p {
    font-size: 1rem;
    color: var(--text-color);
    max-width: 700px;
    margin: 0 auto;
}

/* Form Styles */
.calculator-form {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    margin-bottom: 30px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.input-group .slider-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.input-group input[type="number"] {
    width: 150px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--input-bg);
    color: var(--text-color);
    font-size: 1rem;
}

.input-group input[type="range"] {
    flex: 1;
    height: 6px;
    background-color: var(--slider-track);
    border-radius: 3px;
    -webkit-appearance: none;
}

.input-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: var(--primary);
    cursor: pointer;
    border: none;
}

.input-group input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: var(--primary);
    cursor: pointer;
    border: none;
}

/* Radio Buttons for GST Rates */
.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.radio-button {
    position: relative;
}

.radio-button input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.radio-button label {
    display: inline-block;
    padding: 10px 15px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.radio-button input[type="radio"]:checked + label {
    background-color: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Toggle Switch */
.toggle-switch {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.toggle-switch label {
    margin-right: 10px;
    font-weight: 500;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--toggle-bg);
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: var(--toggle-circle);
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary);
}

input:focus + .slider {
    box-shadow: 0 0 1px var(--primary);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/* Submit Button */
.calculator-form button {
    display: block;
    width: 100%;
    max-width: 200px;
    margin: 30px auto 0;
    padding: 12px 24px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: auto;
}

.calculator-form button:hover {
    background-color: var(--primary-hover);
}

/* Results Section */
.results-section {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    margin-bottom: 30px;
    min-height: 100%;
}

/* Side by side layout adjustments */
@media (min-width: 1024px) {
    .results-section {
        height: 100%;
        margin-bottom: 0;
        display: flex;
        flex-direction: column;
    }

    .results-section .action-buttons {
        margin-top: auto;
    }

    .calculator-form {
        margin-bottom: 0;
    }
}

.results-section.active {
    display: flex;
    flex-direction: column;
}

.results-heading {
    text-align: center;
    margin-bottom: 20px;
}

.results-heading h3 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 5px;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (min-width: 768px) {
    .results-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.result-card {
    background-color: var(--input-bg);
    padding: 20px;
    border-radius: 6px;
    text-align: center;
}

.result-card h4 {
    font-size: 0.9rem;
    margin-bottom: 10px;
    font-weight: 500;
}

.result-card .result-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

/* Chart Styles */
.chart-section {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    margin-bottom: 30px;
    text-align: center;
}

.chart-section h3 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.chart-container {
    height: 300px;
    margin: 0 auto;
    position: relative;
    background-color: var(--chart-bg);
    border-radius: 8px;
    padding: 20px;
    max-width: 500px;
}

/* Breakdown Section */
.breakdown-section {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    margin-bottom: 30px;
}

.breakdown-section.hidden {
    display: none;
}

.breakdown-section h3 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 20px;
    text-align: center;
}

.breakdown-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.breakdown-table th,
.breakdown-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.breakdown-table th {
    font-weight: 600;
    color: var(--primary);
}

.breakdown-table tr:nth-child(even) {
    background-color: var(--input-bg);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.action-button {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.action-button:hover {
    background-color: var(--primary-hover);
}

.action-button svg {
    margin-right: 8px;
}

.action-button.secondary {
    background-color: var(--secondary);
    color: var(--text-color);
}

.toggle-button {
    display: flex;
    align-items: center;
    padding: 8px 16px;
    background-color: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.toggle-button:hover {
    background-color: var(--border-color);
}

/* Info Section */
.info-section {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    margin-bottom: 30px;
}

.info-section h3 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.info-section p {
    margin-bottom: 15px;
    line-height: 1.6;
}

.info-section ul {
    margin-bottom: 15px;
    padding-left: 20px;
}

.info-section ul li {
    margin-bottom: 10px;
    line-height: 1.6;
    position: relative;
}

/* FAQ Section */
.faq-section {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    margin-bottom: 30px;
}

.faq-section h3 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 20px;
    text-align: center;
}

.faq-item {
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.faq-question {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 10px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '\f078';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    transition: transform 0.3s;
}

.faq-question.active::after {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding-top: 10px;
    line-height: 1.6;
}

.faq-answer.active {
    display: block;
}

/* Category cards styling */
.category-card {
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .calculator-form {
        padding: 20px;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-container {
        height: 250px;
    }
    
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .action-button {
        width: 100%;
        justify-content: center;
    }
}