/* English Calculator Common Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

h1 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #1a1a1a;
}

.description {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.8;
}

.adsense-container {
    margin: 28px 0;
    text-align: center;
}

.adsense-container ins {
    background: #f7f7f7;
    border-radius: 6px;
}

.notice {
    font-size: 0.95rem;
    color: #7a7a7a;
    margin-top: -15px;
    margin-bottom: 25px;
}

.calculator-section {
    margin: 30px 0;
}

.calculator-section h2 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #333;
}

.input-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

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

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

.unit-toggle {
    display: inline-flex;
    border: 1px solid #ddd;
    border-radius: 999px;
    background-color: #fff;
    padding: 4px;
    gap: 4px;
}

.unit-toggle-btn {
    border: none;
    background: transparent;
    padding: 8px 14px;
    font-size: 0.95rem;
    border-radius: 999px;
    cursor: pointer;
    color: #555;
    transition: background-color 0.2s, color 0.2s;
}

.unit-toggle-btn.is-active {
    background-color: #4CAF50;
    color: #fff;
}

.unit-toggle-btn:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.25);
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: #4CAF50;
}

.inline-group {
    display: grid;
    grid-template-columns: 1fr 140px;
    gap: 10px;
}

.currency-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 12px;
    align-items: end;
}

.currency-row .input-group {
    margin-bottom: 0;
}

.swap-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid #ddd;
    background-color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
}

.swap-btn:hover {
    background-color: #f3f3f3;
    border-color: #ccc;
}

.helper-text {
    font-size: 0.85rem;
    color: #888;
    margin-top: 6px;
}

.advanced-options {
    margin-top: 10px;
    padding: 12px;
    border: 1px solid #eee;
    border-radius: 6px;
    background-color: #fafafa;
}

.advanced-options summary {
    font-weight: 600;
    cursor: pointer;
    color: #333;
    margin-bottom: 10px;
}

.calculate-btn {
    width: 100%;
    padding: 15px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

.calculate-btn:hover {
    background-color: #45a049;
}

.result-section {
    margin-top: 30px;
    padding: 25px;
    background-color: #f9f9f9;
    border-radius: 4px;
    border-left: 4px solid #4CAF50;
    display: none;
}

.result-section.show {
    display: block;
}

.result-section h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #333;
}

.result-item {
    margin: 10px 0;
    font-size: 1.1rem;
}

.result-value {
    font-weight: 700;
    color: #4CAF50;
    font-size: 1.3rem;
}

.validation-message {
    color: #c62828;
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.result-card {
    background-color: #fff;
    border-radius: 6px;
    padding: 14px;
    border: 1px solid #eee;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.result-card.highlight {
    border-color: #4CAF50;
    background-color: #f1f8f2;
}

.bmi-scale {
    margin-top: 16px;
}

.bmi-scale-labels,
.bmi-scale-range {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: #666;
}

.bmi-scale-bar {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1.2fr 1fr 1fr;
    gap: 0;
    height: 12px;
    border-radius: 999px;
    overflow: hidden;
    margin: 8px 0;
    background-color: #f0f0f0;
}

.bmi-range {
    display: block;
}

.bmi-range.under {
    background-color: #90caf9;
}

.bmi-range.normal {
    background-color: #a5d6a7;
}

.bmi-range.over {
    background-color: #ffe082;
}

.bmi-range.obese {
    background-color: #ef9a9a;
}

.bmi-marker {
    position: absolute;
    top: -6px;
    width: 2px;
    height: 24px;
    background-color: #333;
    left: 0%;
    opacity: 0;
    transition: left 0.2s ease, opacity 0.2s ease;
}

.result-label {
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.result-subtext {
    font-size: 0.9rem;
    color: #666;
    margin-top: 6px;
}

.summary-line {
    margin: 10px 0 20px;
    font-size: 1rem;
    color: #444;
}

.status-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin: 5px 0 15px;
}

.status-badge {
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    background-color: #e0e0e0;
    color: #444;
}

.status-badge.on-track {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.status-badge.off-track {
    background-color: #ffebee;
    color: #c62828;
}

.shortfall-line {
    font-size: 0.95rem;
    color: #555;
}

.info-lines {
    font-size: 0.9rem;
    color: #666;
    display: grid;
    gap: 6px;
}

.table-section h4 {
    font-size: 1.05rem;
    margin-bottom: 10px;
    color: #333;
}

.table-wrapper {
    overflow-x: auto;
    border: 1px solid #eee;
    border-radius: 6px;
    background-color: #fff;
}

.table-wrapper table {
    width: 100%;
    border-collapse: collapse;
    min-width: 420px;
}

.table-wrapper th,
.table-wrapper td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid #eee;
    font-size: 0.95rem;
}

.table-wrapper th {
    background-color: #f6f6f6;
    color: #444;
    font-weight: 600;
}

.table-wrapper tr:last-child td {
    border-bottom: none;
}

.related-calculators {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.related-calculators h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #333;
}

.related-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.related-link {
    display: inline-block;
    padding: 10px 20px;
    background-color: #e8f5e9;
    color: #2e7d32;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.related-link:hover {
    background-color: #c8e6c9;
}

.decision-hub {
    margin-top: 15px;
    font-size: 0.95rem;
    color: #555;
    display: none;
}

.decision-hub a {
    color: #2e7d32;
    text-decoration: none;
    font-weight: 600;
    margin-left: 6px;
}

.decision-hub a:hover {
    text-decoration: underline;
}

.faq-section {
    margin-top: 40px;
}

.faq-section h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: #333;
}

.faq-item {
    margin-bottom: 20px;
}

.faq-question {
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.faq-answer {
    color: #666;
    line-height: 1.7;
}

.ad-section {
    margin: 30px 0;
    min-height: 100px;
    background-color: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    color: #999;
    font-size: 0.9rem;
}

.nav-header {
    margin-bottom: 30px;
}

.nav-link {
    color: #4CAF50;
    text-decoration: none;
    font-size: 0.9rem;
}

.nav-link:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .container {
        padding: 20px;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    .description {
        font-size: 1rem;
    }

    .inline-group {
        grid-template-columns: 1fr;
    }

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

    .currency-row {
        grid-template-columns: 1fr;
    }

    .swap-btn {
        justify-self: center;
    }
}