:root {
    --navy-dark: #0a1929;
    --navy-medium: #1a2f45;
    --navy-light: #2d4563;
    --emerald: #10b981;
    --emerald-light: #34d399;
    --emerald-dark: #059669;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    box-sizing: border-box;
}

.mortgage-calculator-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--gray-800);
    line-height: 1.6;
}

.mortgage-calculator-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.calculator-header {
    text-align: center;
    margin-bottom: 3rem;
}

.calculator-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--navy-dark);
    margin: 0 0 0.5rem 0;
}

.calculator-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin: 0;
}

.calculator-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 3rem;
}

.input-card,
.summary-card,
.summary-table-card,
.amortization-card,
.payment-breakdown-card,
.info-card {
    background: var(--white);
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    margin-bottom: 2.5rem;
}

.highlight-card {
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy-medium) 100%);
    color: var(--white);
    border: none;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--navy-dark);
    margin: 0 0 1.5rem 0;
}

.section-subtitle {
    color: var(--gray-600);
    font-size: 0.95rem;
    margin: -0.75rem 0 1.5rem 0;
}

.highlight-card .section-title {
    color: var(--white);
}

.input-group {
    margin-bottom: 2rem;
}

.input-group label {
    display: block;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-prefix,
.input-suffix {
    position: absolute;
    color: var(--gray-600);
    font-weight: 500;
}

.input-prefix {
    left: 1rem;
}

.input-suffix {
    right: 1rem;
}

.input-field {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s;
    background: var(--white);
}

.input-wrapper .input-field {
    padding-left: 2.5rem;
}

.input-wrapper:has(.input-suffix) .input-field {
    padding-right: 2.5rem;
}

.input-field:focus {
    outline: none;
    border-color: var(--emerald);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.select-field {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%234b5563'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.5rem;
    padding-right: 2.5rem;
}

.input-with-slider {
    margin-top: 0.5rem;
}

.slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--gray-200);
    outline: none;
    margin: 1rem 0 0.5rem 0;
    appearance: none;
}

.slider::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--emerald);
    cursor: pointer;
    transition: all 0.2s;
}

.slider::-webkit-slider-thumb:hover {
    background: var(--emerald-dark);
    transform: scale(1.1);
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--emerald);
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

.slider::-moz-range-thumb:hover {
    background: var(--emerald-dark);
    transform: scale(1.1);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--gray-600);
}

.input-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.payment-amount {
    text-align: center;
    padding: 1.5rem 0;
}

.payment-label {
    font-size: 0.95rem;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

.payment-value {
    font-size: 3rem;
    font-weight: 700;
    margin: 0.5rem 0;
    color: var(--emerald-light);
}

.payment-frequency-label {
    font-size: 0.95rem;
    opacity: 0.8;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-200);
}

.breakdown-item:last-child {
    border-bottom: none;
}

.breakdown-label {
    font-weight: 500;
    color: var(--gray-700);
}

.breakdown-value {
    font-weight: 600;
    color: var(--navy-dark);
}

.breakdown-value.emerald {
    color: var(--emerald-dark);
}

.total-row {
    background: var(--gray-50);
    margin: 0 -2rem;
    padding: 1rem 2rem;
    border-bottom: none;
    font-size: 1.1rem;
}

.total-row .breakdown-label,
.total-row .breakdown-value {
    font-weight: 700;
}

.chart-container {
    position: relative;
    height: 250px;
    margin-top: 1rem;
}

.breakdown-chart-container {
    position: relative;
    height: 400px;
    margin-top: 1.5rem;
    background: var(--gray-50);
    border-radius: 8px;
    padding: 1.5rem;
}

.summary-table-card,
.amortization-card {
    margin-bottom: 2rem;
}

.summary-table-wrapper {
    overflow-x: auto;
}

.summary-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.summary-table th,
.summary-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.summary-table th {
    background: var(--navy-dark);
    color: var(--white);
    font-weight: 600;
    white-space: nowrap;
}

.summary-table tbody tr:hover {
    background: var(--gray-50);
}

.amortization-table-wrapper {
    overflow-x: auto;
}

.amortization-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.amortization-table th,
.amortization-table td {
    padding: 0.75rem 1rem;
    text-align: right;
    border-bottom: 1px solid var(--gray-200);
}

.amortization-table th:first-child,
.amortization-table td:first-child {
    text-align: left;
}

.amortization-table thead th {
    background: var(--navy-dark);
    color: var(--white);
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 10;
}

.amortization-body-wrapper {
    max-height: 500px;
    overflow-y: auto;
    display: block;
}

.amortization-body-wrapper table {
    width: 100%;
}

.amortization-table tbody tr:nth-child(even) {
    background: var(--gray-50);
}

.amortization-table tbody tr:hover {
    background: var(--gray-100);
}

.info-section {
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 2px solid var(--gray-200);
}

.info-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--navy-dark);
    text-align: center;
    margin: 0 0 2rem 0;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.info-card {
    background: var(--gray-50);
    border-left: 4px solid var(--emerald);
}

.info-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--navy-dark);
    margin: 0 0 1rem 0;
}

.info-card p {
    margin: 0 0 0.75rem 0;
    color: var(--gray-700);
}

.info-card ul {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
    color: var(--gray-700);
}

.info-card li {
    margin-bottom: 0.5rem;
}

@media (max-width: 1024px) {
    .calculator-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .calculator-title {
        font-size: 2rem;
    }
    
    .calculator-subtitle {
        font-size: 1rem;
    }
    
    .input-card,
    .summary-card,
    .summary-table-card,
    .amortization-card {
        padding: 1.5rem;
    }
    
    .payment-value {
        font-size: 2.5rem;
    }
    
    .input-row {
        grid-template-columns: 1fr;
    }
    
    .summary-table,
    .amortization-table {
        font-size: 0.8rem;
    }
    
    .summary-table th,
    .summary-table td,
    .amortization-table th,
    .amortization-table td {
        padding: 0.5rem;
    }
}

@media (max-width: 480px) {
    .calculator-container {
        padding: 1rem 0.5rem;
    }
    
    .calculator-title {
        font-size: 1.5rem;
    }
    
    .payment-value {
        font-size: 2rem;
    }
}