/* Science Page Styles */
.science-hero {
    background: var(--nutrisync-background);
    padding: 120px 0 60px;
    text-align: center;
    border-bottom: 2px solid var(--nutrisync-green);
}

.science-hero h1 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--nutrisync-text-primary);
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--nutrisync-text-secondary);
}

.science-content {
    background: var(--nutrisync-background);
    padding: 60px 0;
}

.science-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

.science-section {
    margin-bottom: 4rem;
}

.science-section h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--nutrisync-text-primary);
    margin-bottom: 1.5rem;
    text-align: center;
}

.science-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--nutrisync-text-primary);
    margin-bottom: 1rem;
    opacity: 0.95;
}

.lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--nutrisync-text-secondary);
    margin-bottom: 1.5rem;
}

.science-section p {
    color: var(--nutrisync-text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

/* Research Grid */
.research-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.research-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid var(--nutrisync-border);
    border-top: 3px solid var(--nutrisync-green);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--nutrisync-green-dark);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--nutrisync-text-primary);
    margin-bottom: 1rem;
}

.research-card p {
    font-size: 0.95rem;
    color: var(--nutrisync-text-secondary);
}

/* Circadian Timeline */
.rhythm-timeline {
    margin-top: 2rem;
}

.timeline-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    border: 1px solid var(--nutrisync-border);
    border-left: 3px solid var(--nutrisync-green);
}

.timeline-item.morning {
    border-left-color: #FFD700;
}

.timeline-item.afternoon {
    border-left-color: #FFA500;
}

.timeline-item.evening {
    border-left-color: #4B0082;
}

.timeline-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.timeline-item ul {
    list-style: none;
    padding: 0;
}

.timeline-item li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
    color: var(--nutrisync-text-secondary);
}

.timeline-item li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--nutrisync-green);
}

/* Benefit Sections */
.benefit-section {
    background: var(--nutrisync-elevated);
    border: 1px solid var(--nutrisync-border);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
}

.benefit-section h3 {
    color: var(--nutrisync-text-primary);
    margin-bottom: 1rem;
}

.benefit-section ul {
    list-style: none;
    padding: 0;
}

.benefit-section li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.5rem;
    color: var(--nutrisync-text-secondary);
}

.benefit-section li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--nutrisync-green);
    font-weight: bold;
}

/* Mechanism Grid */
.mechanism-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.mechanism-card {
    background: linear-gradient(135deg, var(--nutrisync-elevated) 0%, var(--nutrisync-tertiary) 100%);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--nutrisync-border);
}

.mechanism-card h3 {
    text-align: center;
    color: var(--nutrisync-text-primary);
    margin-bottom: 1.5rem;
}

.pathway {
    text-align: center;
}

.pathway-step {
    background: var(--nutrisync-green);
    color: var(--nutrisync-background);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    margin-bottom: 1rem;
}

.pathway-arrow {
    font-size: 2rem;
    color: var(--nutrisync-green);
    margin: 0.5rem 0;
}

.pathway-result {
    background: var(--nutrisync-surface);
    border: 1px solid var(--nutrisync-border);
    padding: 1rem;
    border-radius: 8px;
    text-align: left;
}

.pathway-result strong {
    color: var(--nutrisync-text-primary);
    display: block;
    margin-bottom: 0.5rem;
}

.pathway-result ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pathway-result li {
    padding: 0.25rem 0;
    color: var(--nutrisync-text-secondary);
    font-size: 0.9rem;
}

/* Protocol Cards */
.protocol-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.protocol-card {
    background: var(--card-bg);
    border: 1px solid var(--nutrisync-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.protocol-card h3 {
    background: var(--nutrisync-green);
    color: var(--nutrisync-background);
    padding: 1rem;
    margin: 0;
    font-size: 1.25rem;
    text-align: center;
}

.protocol-details {
    padding: 1.5rem;
}

.protocol-details p {
    margin-bottom: 0.75rem;
}

.protocol-details strong {
    color: var(--nutrisync-text-primary);
}

.protocol-details ul {
    list-style: none;
    padding: 0;
}

.protocol-details li {
    padding: 0.25rem 0;
    color: var(--nutrisync-text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.protocol-details li:before {
    content: "•";
    position: absolute;
    left: 0.5rem;
    color: var(--nutrisync-green);
}

/* Citation List */
.citation-list {
    background: var(--nutrisync-elevated);
    border: 1px solid var(--nutrisync-border);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin-top: 1rem;
}

.citation {
    padding: 1rem 0;
    border-bottom: 1px solid var(--nutrisync-divider);
    color: var(--nutrisync-text-secondary);
}

.citation:last-child {
    border-bottom: none;
}

.citation strong {
    color: var(--nutrisync-text-primary);
}

.citation em {
    color: var(--nutrisync-text-tertiary);
}

/* Science CTA */
.science-cta {
    text-align: center;
    padding: 3rem;
    background: linear-gradient(135deg, var(--nutrisync-elevated) 0%, var(--nutrisync-secondary-bg) 100%);
    border: 1px solid var(--nutrisync-border);
    border-radius: var(--border-radius);
    margin-top: 3rem;
}

.science-cta h2 {
    color: var(--nutrisync-text-primary);
    margin-bottom: 1rem;
}

.science-cta p {
    color: var(--nutrisync-text-secondary);
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

.cta-button img {
    height: 56px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .science-hero h1 {
        font-size: 2rem;
    }
    
    .research-grid,
    .mechanism-grid,
    .protocol-cards {
        grid-template-columns: 1fr;
    }
    
    .timeline-item {
        margin-bottom: 1rem;
    }
    
    .science-section h2 {
        font-size: 1.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}