/* ============================================
   NOTE G (BERNOULLI NUMBERS) PAGE
   ============================================ */

/* Ada Lovelace color theme */
:root {
    --color-primary: #8B4545;
    --color-accent: #6B3535;
    --color-primary-rgb: 139, 69, 69;
    --gradient-brand: linear-gradient(135deg, #8B4545 0%, #6B3535 100%);
}

.note-g-container {
    max-width: 1000px;
    margin: 80px auto 0 auto;
    padding: 20px;
}

.hero-section {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    margin-bottom: 40px;
    text-align: left;
}

.hero-section h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--color-primary);
}

.hero-section .subtitle {
    font-size: 1.3rem;
    color: var(--color-primary);
    font-style: italic;
    margin-bottom: 20px;
}

.info-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 30px;
    margin-bottom: 30px;
    text-align: left;
}

.info-section h2 {
    color: var(--color-primary);
    margin-top: 0;
    font-size: 1.8rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 10px;
}

.info-section h3 {
    color: var(--color-primary);
    font-size: 1.3rem;
    margin-top: 25px;
}

.info-section p {
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 15px;
}

.info-section ul {
    text-align: left;
    margin: 15px 0;
    padding-left: 20px;
}

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

.formula-box {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: 20px;
    margin: 20px 0;
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    color: var(--color-accent);
    overflow-x: auto;
}

.calculator-section {
    background: var(--color-surface-deep);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    margin-bottom: 30px;
}

.calculator-section h2 {
    color: var(--color-primary);
    margin-top: 0;
    font-size: 2rem;
}

.input-group {
    margin: 30px 0;
}

.input-group label {
    display: block;
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--color-text);
}

.input-group input {
    width: 100%;
    max-width: 200px;
    padding: 12px;
    font-size: 1.2rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: var(--transition-base);
}

.input-group input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.calculate-btn {
    background: var(--color-accent);
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 1.2rem;
    font-weight: 600;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: var(--transition-base);
    margin: 20px 0;
}

.calculate-btn:hover,
.calculate-btn:active {
    background: var(--color-primary);
}

.result-box {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 30px;
    margin: 30px 0;
    min-height: 100px;
    display: none;
}

.result-box.show {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

.result-box h3 {
    color: var(--color-primary);
    margin-top: 0;
    font-size: 1.5rem;
}

.result-value {
    font-size: 1.8rem;
    color: var(--color-primary);
    font-weight: 600;
    margin: 20px 0;
    font-family: 'Courier New', monospace;
}

.fraction-display {
    display: inline-block;
    text-align: center;
    vertical-align: middle;
}

.fraction-numerator {
    display: block;
    border-bottom: 1px solid var(--color-primary);
    padding-bottom: 5px;
    margin-bottom: 5px;
}

.fraction-denominator {
    display: block;
    padding-top: 5px;
}

.computation-steps {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-top: 20px;
    text-align: left;
    max-height: 400px;
    overflow-y: auto;
}

.computation-steps h4 {
    color: var(--color-primary);
    margin-top: 0;
}

.computation-steps pre {
    background: rgba(0, 0, 0, 0.3);
    padding: 10px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    font-size: 0.9rem;
    line-height: 1.6;
}

.error-message {
    color: var(--color-primary);
    background: rgba(139, 69, 69, 0.1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 15px;
    margin: 20px 0;
}

.known-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.known-value-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 15px;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.known-value-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 69, 69, 0.2);
}

.known-value-item.highlight-strong {
    background: rgba(139, 69, 69, 0.1);
}

.known-value-item.highlight-light {
    background: rgba(139, 69, 69, 0.05);
}

.known-value-item .label {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 5px;
    font-weight: 500;
}

.known-value-item .value {
    color: var(--color-primary);
    font-size: 1.1rem;
    font-weight: 600;
    font-family: 'Courier New', monospace;
}

.quote-box {
    background: rgba(0, 0, 0, 0.3);
    border-left: 3px solid var(--color-primary);
    padding: 20px;
    margin: 20px 0;
    font-style: italic;
    color: var(--color-text-muted);
}

.quote-box p {
    margin: 0;
}

.quote-box .attribution {
    text-align: right;
    margin-top: 10px;
    color: var(--color-primary);
    font-style: normal;
    font-size: 0.9rem;
}

.mode-selector-group {
    margin: 30px 0;
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.mode-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.mode-btn {
    flex: 1;
    padding: 12px 20px;
    font-size: 1.1rem;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.mode-btn:hover {
    border-color: var(--color-primary);
    background: rgba(139, 69, 69, 0.1);
}

.mode-btn.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(139, 69, 69, 0.3);
}

.mode-description {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    padding: 12px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
}

.bug-toggle-group {
    margin: 20px 0;
    padding: 20px;
    background: rgba(139, 69, 69, 0.15);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-md);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.1rem;
    color: var(--color-text);
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-accent);
}

.bug-description {
    margin-top: 15px;
    padding: 12px;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--color-text-muted);
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-primary);
}

/* Inline-style replacements */
.page-title-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2rem;
    }

    .calculator-section {
        padding: 20px;
    }

    .known-values {
        grid-template-columns: 1fr;
    }

    .mode-buttons {
        flex-direction: column;
    }
}