/**
 * Real Estate & Financial Calculator Styles
 * Tool-specific stylesheet for real-estate-calculator.php
 * Responsive design following ZeroServerTools.org design system
 */

/* ============================================
   1. TAB NAVIGATION
   ============================================ */

.real-estate-calculator {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.tab-navigation {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: #F5F5F5;
    border-bottom: 1px solid var(--color-border);
    overflow-x: auto;
    flex-wrap: wrap;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-medium);
    white-space: nowrap;
}

.tab-btn:hover {
    background: #F9F9F9;
    border-color: var(--color-primary);
    color: var(--color-primary);
}

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

.tab-icon {
    font-size: 1.25rem;
}

.tab-label {
    display: none;
}

@media (min-width: 768px) {
    .tab-label {
        display: inline;
    }
    
    .tab-btn {
        gap: var(--space-sm);
    }
}

/* ============================================
   2. TAB CONTENT
   ============================================ */

.tab-content {
    display: none;
    padding: var(--space-lg);
    animation: fadeIn var(--transition-base);
}

.tab-content.active {
    display: block;
}

.tab-content h2 {
    font-size: 1.75rem;
    color: var(--color-text-dark);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 2px solid var(--color-primary);
}

.tab-content h3 {
    font-size: 1.25rem;
    color: var(--color-text-dark);
    margin-top: var(--space-lg);
    margin-bottom: var(--space-md);
}

.tab-content h4 {
    font-size: 1.1rem;
    color: var(--color-text-dark);
    margin-top: var(--space-md);
    margin-bottom: var(--space-sm);
    font-weight: 600;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   3. FORM LAYOUT
   ============================================ */

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
    .form-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }
}

@media (min-width: 1024px) {
    .form-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.form-section-header {
    grid-column: 1 / -1;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    padding-top: var(--space-md);
    border-top: 2px solid var(--color-border);
    margin-top: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-group label {
    font-weight: 500;
    color: var(--color-text-dark);
    font-size: 0.95rem;
}

.form-group input,
.form-group select {
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}

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

.currency-symbol,
.input-suffix {
    position: absolute;
    color: var(--color-text-medium);
    font-weight: 500;
    pointer-events: none;
}

.currency-symbol {
    left: var(--space-md);
}

.input-suffix {
    right: var(--space-md);
}

.input-wrapper input {
    padding-left: 2rem;
    padding-right: 2rem;
    width: 100%;
}

.input-wrapper input:focus + .currency-symbol,
.input-wrapper input:focus + .input-suffix {
    color: var(--color-primary);
}

/* ============================================
   4. BUTTONS
   ============================================ */

.btn {
    padding: var(--space-sm) var(--space-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    height: fit-content;
}

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

.btn-primary:hover {
    background: #0A7068;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

/* ============================================
   5. RESULTS SECTION
   ============================================ */

.results-section {
    margin-top: var(--space-2xl);
    padding-top: var(--space-lg);
    border-top: 2px solid var(--color-border);
}

.results-section h3 {
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-bottom: var(--space-lg);
}

.results-section h4 {
    color: var(--color-text-dark);
    margin-top: var(--space-lg);
    margin-bottom: var(--space-md);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.result-card {
    padding: var(--space-lg);
    background: #F9F9F9;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
    transition: all var(--transition-base);
}

.result-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.result-card.highlight {
    background: rgba(13, 148, 136, 0.08);
    border-color: var(--color-primary);
}

.result-label {
    font-size: 0.85rem;
    color: var(--color-text-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-xs);
    font-weight: 600;
}

.result-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    word-break: break-word;
}

.result-status {
    font-size: 0.85rem;
    margin-top: var(--space-xs);
    font-weight: 600;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    display: inline-block;
    background: #F0F0F0;
}

.result-status.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.result-status.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
}

.result-status.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
}

/* ============================================
   6. EXTRA PAYMENT SECTION
   ============================================ */

.extra-payment-section {
    padding: var(--space-lg);
    background: rgba(16, 185, 129, 0.05);
    border-left: 4px solid var(--color-success);
    border-radius: var(--radius-md);
    margin: var(--space-lg) 0;
}

.extra-payment-section h4 {
    color: var(--color-success);
    margin-top: 0;
}

/* ============================================
   7. QUALIFICATION BOX
   ============================================ */

.qualification-box {
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    margin: var(--space-lg) 0;
    background: #F9F9F9;
    border: 2px solid var(--color-border);
}

.qualification-status {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    text-align: center;
    color: white;
}

.qualification-status.success {
    background: var(--color-success);
}

.qualification-status.warning {
    background: var(--color-warning);
}

.qualification-status.error {
    background: var(--color-error);
}

.qualification-message {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-dark);
}

/* ============================================
   8. TABLE STYLES
   ============================================ */

.table-wrapper {
    overflow-x: auto;
    margin: var(--space-lg) 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.amortization-table,
.expenses-table,
.seller-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-bg-card);
}

.amortization-table thead,
.expenses-table thead {
    background: var(--color-primary);
    color: white;
}

.amortization-table th,
.expenses-table thead td {
    padding: var(--space-md);
    text-align: left;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.amortization-table td,
.expenses-table td,
.seller-table td {
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border);
    font-size: 0.95rem;
}

.amortization-table tbody tr:hover,
.expenses-table tbody tr:hover {
    background: #F9F9F9;
}

.expenses-table tbody tr:last-child,
.seller-table tr:last-child {
    border-bottom: none;
}

.table-total {
    background: rgba(13, 148, 136, 0.05);
    font-weight: 600;
    color: var(--color-primary);
    border-top: 2px solid var(--color-primary);
}

.table-section {
    background: #F5F5F5;
    font-weight: 600;
    color: var(--color-text-dark);
    border-top: 1px solid var(--color-border);
}

/* ============================================
   9. YIELD INDICATOR
   ============================================ */

.yield-indicator {
    text-align: center;
    padding: var(--space-lg);
    background: #F9F9F9;
    border-radius: var(--radius-md);
    margin: var(--space-lg) 0;
}

.yield-badge {
    display: inline-block;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    min-width: 200px;
}

.yield-badge.excellent {
    background: #10B981;
}

.yield-badge.good {
    background: #3B82F6;
}

.yield-badge.fair {
    background: #F59E0B;
}

.yield-badge.low {
    background: #EF4444;
}

.yield-badge.negative {
    background: #DC2626;
}

.yield-badge.neutral {
    background: #9CA3AF;
}

/* ============================================
   10. PROCEEDS CHART
   ============================================ */

.proceeds-chart {
    display: flex;
    align-items: center;
    justify-content: space-around;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: #F9F9F9;
    border-radius: var(--radius-md);
    flex-wrap: wrap;
    margin: var(--space-lg) 0;
}

.chart-item {
    text-align: center;
    min-width: 150px;
}

.chart-bar {
    width: 100%;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    font-size: 0.9rem;
    word-break: break-word;
    padding: var(--space-sm);
}

.chart-label {
    font-size: 0.9rem;
    color: var(--color-text-medium);
    font-weight: 600;
}

.chart-arrow {
    font-size: 1.5rem;
    color: var(--color-primary);
}

/* ============================================
   11. RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    .tab-navigation {
        padding: var(--space-sm);
        gap: var(--space-xs);
    }

    .tab-btn {
        padding: var(--space-xs) var(--space-sm);
        font-size: 0.85rem;
    }

    .tab-content {
        padding: var(--space-md);
    }

    .tab-content h2 {
        font-size: 1.5rem;
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .results-grid {
        grid-template-columns: 1fr;
    }

    .result-card {
        padding: var(--space-md);
    }

    .result-value {
        font-size: 1.5rem;
    }

    .btn-primary {
        width: 100%;
        text-align: center;
    }

    .table-wrapper {
        font-size: 0.85rem;
    }

    .amortization-table th,
    .amortization-table td {
        padding: var(--space-sm);
    }

    .proceeds-chart {
        flex-direction: column;
        gap: var(--space-md);
    }

    .chart-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 480px) {
    .tab-btn {
        padding: var(--space-xs) var(--space-sm);
        font-size: 0.75rem;
    }

    .tab-icon {
        font-size: 1rem;
    }

    .form-group input,
    .form-group select {
        padding: var(--space-sm);
        font-size: 16px; /* Prevents zoom on iOS */
    }

    /* Fix $ sign overlap on mobile */
    .input-wrapper input {
        padding-left: 2.5rem;
        padding-right: 2.5rem;
    }

    .currency-symbol {
        left: 0.5rem;
        font-size: 0.9rem;
    }

    .input-suffix {
        right: 0.5rem;
        font-size: 0.9rem;
    }

    .result-value {
        font-size: 1.25rem;
    }

    .results-section {
        margin-top: var(--space-lg);
        padding-top: var(--space-md);
    }

    .table-wrapper {
        margin: var(--space-md) 0;
    }
}

/* ============================================
   12. UTILITY CLASSES
   ============================================ */

.mb-xl {
    margin-bottom: var(--space-xl);
}

/* ============================================
   13. PRINT STYLES
   ============================================ */

@media print {
    .tab-navigation,
    .btn-primary {
        display: none;
    }

    .tab-content {
        display: block !important;
        page-break-inside: avoid;
    }

    .results-section {
        page-break-inside: avoid;
        margin-top: var(--space-lg);
    }

    .amortization-table {
        page-break-inside: avoid;
    }

    .amortization-table tbody tr:nth-child(n+61) {
        display: none;
    }
}