/* mortgage-calculator/style.css */
:root {
    --bg-color: #ffffff;
    --card-color: #f9fafb;
    --border-color: #e5e7eb;
    --text-color: #111827;
    --primary-btn: #22c55e;
    --primary-btn-hover: #16a34a;
    --secondary-btn: #2563eb;
    --title-bg: #2CEC00;
    --error-color: #ef4444;
    --success-color: #10b981;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.mortgage-calculator-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    color: var(--text-color);
    overflow-x: hidden;
}

/* Title Container */
.mortgage-title-container {
    background-color: var(--title-bg);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.mortgage-title-container h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.mortgage-title-container p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Main Card */
.mortgage-calculator-card {
    background-color: var(--card-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

/* Input Sections */
.input-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-color);
}

.input-group input,
.input-group select {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
    background-color: white;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--primary-btn);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.input-group.full-width {
    grid-column: 1 / -1;
}

/* Error Messages */
.error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    min-height: 1.25rem;
}

/* Advanced Options */
.advanced-toggle-btn {
    width: 100%;
    padding: 1rem;
    background-color: white;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    margin-bottom: 1.5rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.advanced-toggle-btn:hover {
    border-color: var(--primary-btn);
    background-color: #f0fdf4;
}

.toggle-icon {
    transition: transform 0.3s ease;
}

.advanced-toggle-btn[aria-expanded="true"] .toggle-icon {
    transform: rotate(180deg);
}

.advanced-options {
    overflow: hidden;
    transition: max-height 0.3s ease-out, opacity 0.3s ease;
    opacity: 1;
}

.advanced-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    padding: 1.5rem;
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 1rem;
}

.close-advanced-btn {
    width: 100%;
    padding: 0.875rem;
    background-color: var(--border-color);
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    transition: background-color 0.2s;
}

.close-advanced-btn:hover {
    background-color: #e0e0e0;
}

/* Buttons */
.button-group {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.calculate-btn,
.reset-btn,
.export-btn {
    flex: 1;
    min-width: 150px;
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

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

.calculate-btn:hover {
    background-color: var(--primary-btn-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

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

.reset-btn:hover {
    background-color: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* Loading Spinner */
.loading-spinner {
    text-align: center;
    padding: 3rem;
    margin: 2rem 0;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-btn);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Results Section */
.results-section {
    margin-top: 3rem;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.summary-card {
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.summary-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.summary-card h3 {
    font-size: 1rem;
    color: #6b7280;
    margin-bottom: 0.5rem;
}

.summary-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-color);
}

/* Progress Bar */
.progress-container {
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 3rem;
}

.progress-bar {
    height: 40px;
    background-color: var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    margin: 1rem 0;
    display: flex;
}

.progress-fill {
    height: 100%;
    transition: width 0.5s ease;
}

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

.interest-fill {
    background-color: #f59e0b;
}

.progress-labels {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
}

/* Charts */
.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.chart-wrapper {
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    height: 300px;
}

/* Breakdown Table */
.breakdown-table {
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 3rem;
    overflow-x: auto;
}

.breakdown-table h3 {
    margin-bottom: 1rem;
}

.breakdown-table table {
    width: 100%;
    border-collapse: collapse;
}

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

.breakdown-table th {
    font-weight: 600;
    background-color: #f9fafb;
}

.breakdown-table tr:hover {
    background-color: #f9fafb;
}

/* Export Buttons */
.export-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.export-btn {
    background-color: white;
    border: 2px solid var(--border-color);
    color: var(--text-color);
    padding: 0.875rem 1.5rem;
}

.export-btn:hover {
    background-color: #f9fafb;
    border-color: var(--primary-btn);
    color: var(--primary-btn);
}

/* Range Slider */
input[type="range"] {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    outline: none;
    -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-btn);
    border-radius: 50%;
    cursor: pointer;
}

/* Responsive Design */
@media (max-width: 768px) {
    .mortgage-title-container h1 {
        font-size: 2rem;
    }
    
    .input-section {
        grid-template-columns: 1fr;
    }
    
    .advanced-grid {
        grid-template-columns: 1fr;
    }
    
    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .charts-container {
        grid-template-columns: 1fr;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .calculate-btn,
    .reset-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .mortgage-calculator-container {
        padding: 10px;
    }
    
    .mortgage-title-container {
        padding: 1.5rem;
    }
    
    .mortgage-title-container h1 {
        font-size: 1.75rem;
    }
    
    .mortgage-calculator-card {
        padding: 1rem;
    }
    
    .summary-cards {
        grid-template-columns: 1fr;
    }
    
    .export-buttons {
        flex-direction: column;
    }
    
    .export-btn {
        width: 100%;
    }
}

@media (max-width: 360px) {
    .mortgage-title-container h1 {
        font-size: 1.5rem;
    }
    
    .summary-value {
        font-size: 1.5rem;
    }
    
    .charts-container {
        gap: 1rem;
    }
}

/* Print Styles */
@media print {
    .advanced-toggle-btn,
    .close-advanced-btn,
    .button-group,
    .export-buttons {
        display: none;
    }
    
    .mortgage-calculator-container {
        padding: 0;
    }
    
    .mortgage-calculator-card {
        border: none;
        box-shadow: none;
        padding: 0;
    }
    
    .chart-wrapper {
        page-break-inside: avoid;
    }
}

/* Accessibility */
.advanced-toggle-btn:focus,
.calculate-btn:focus,
.reset-btn:focus,
.export-btn:focus,
input:focus,
select:focus {
    outline: 2px solid var(--primary-btn);
    outline-offset: 2px;
}

/* High contrast support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --text-color: #000000;
    }
    
    .mortgage-calculator-card {
        border: 2px solid var(--border-color);
    }
}