/* Bio Chemicals — shared styles for content, FAQ, blog and the B2B pages.
   Built entirely on the variables already declared in style.css, and written
   with logical properties so every block flips correctly on dir="rtl" pages
   without a separate RTL stylesheet. */

/* ========== Prose / article body ========== */
.content-section {
    padding: var(--spacing-3xl) 0;
}

.content-section.tinted {
    background: var(--gray-50);
}

.prose {
    max-width: 820px;
    margin-inline: auto;
}

.prose.wide {
    max-width: 1040px;
}

.prose h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--primary-blue);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.prose h2:first-child {
    margin-top: 0;
}

.prose h3 {
    font-size: clamp(1.15rem, 2vw, 1.35rem);
    font-weight: 700;
    color: var(--gray-800);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-xs);
}

.prose p {
    color: var(--gray-600);
    line-height: 1.9;
    margin-bottom: var(--spacing-sm);
}

.prose ul,
.prose ol {
    margin: 0 0 var(--spacing-md);
    padding-inline-start: 1.4rem;
    color: var(--gray-600);
    line-height: 1.9;
}

.prose li {
    margin-bottom: 0.4rem;
}

.prose a {
    color: var(--primary-blue);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.prose a:hover {
    color: var(--primary-orange);
}

.prose strong {
    color: var(--gray-800);
}

/* ========== Definition lead — the extractable opening paragraph ========== */
.definition-lead {
    font-size: 1.15rem;
    line-height: 1.85;
    color: var(--gray-700);
    background: var(--gray-50);
    border-inline-start: 4px solid var(--primary-orange);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.definition-lead strong {
    color: var(--primary-blue);
}

/* ========== Quick answer box (blog posts) ========== */
.quick-answer {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.06) 0%, rgba(234, 88, 12, 0.06) 100%);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.quick-answer h2 {
    font-size: 1.05rem !important;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-orange) !important;
    margin: 0 0 var(--spacing-xs) !important;
}

.quick-answer p:last-child {
    margin-bottom: 0;
}

/* ========== Safety / note callout ========== */
.note-box {
    border: 1px solid var(--gray-200);
    border-inline-start: 4px solid var(--primary-blue);
    background: var(--white);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.note-box h3 {
    margin-top: 0 !important;
    color: var(--primary-blue) !important;
}

.note-box p:last-child,
.note-box ul:last-child {
    margin-bottom: 0;
}

/* ========== Comparison tables ========== */
.table-scroll {
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 560px;
    background: var(--white);
    font-size: 0.95rem;
}

.compare-table th,
.compare-table td {
    padding: 0.9rem 1rem;
    text-align: start;
    border-bottom: 1px solid var(--gray-200);
    vertical-align: top;
}

.compare-table thead th {
    background: var(--primary-blue);
    color: var(--white);
    font-weight: 700;
    border-bottom: 0;
    white-space: nowrap;
}

.compare-table tbody tr:last-child td {
    border-bottom: 0;
}

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

.compare-table td:first-child {
    font-weight: 600;
    color: var(--gray-800);
}

/* ========== FAQ accordion (markup matches the handler in js/script.js) ========== */
.faq-section {
    padding: var(--spacing-3xl) 0;
    background: var(--gray-50);
}

.faq-list {
    max-width: 860px;
    margin-inline: auto;
}

.faq-item {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    margin-bottom: 0.75rem;
    overflow: hidden;
    transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.faq-item.active {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-md);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    width: 100%;
    padding: 1.15rem var(--spacing-lg);
    font-family: inherit;
    font-size: 1.03rem;
    font-weight: 700;
    color: var(--gray-800);
    background: none;
    border: 0;
    text-align: start;
    cursor: pointer;
}

.faq-question:hover {
    color: var(--primary-blue);
}

.faq-question::after {
    content: '+';
    flex: none;
    font-size: 1.5rem;
    font-weight: 400;
    line-height: 1;
    color: var(--primary-orange);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-answer p {
    padding: 0 var(--spacing-lg) 1.25rem;
    margin: 0;
    color: var(--gray-600);
    line-height: 1.85;
}

/* ========== Generic info / feature cards ========== */
.point-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.point-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.point-icon {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: var(--radius-md);
    background: rgba(30, 58, 138, 0.08);
    color: var(--primary-blue);
    font-size: 1.4rem;
    margin-bottom: var(--spacing-sm);
}

.point-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 0.4rem;
}

.point-card p {
    color: var(--gray-600);
    line-height: 1.75;
    font-size: 0.95rem;
    margin: 0;
}

/* ========== Numbered process steps ========== */
.steps-list {
    counter-reset: step;
    list-style: none;
    padding: 0;
    margin: var(--spacing-xl) 0 0;
    display: grid;
    gap: var(--spacing-md);
}

.steps-list li {
    counter-increment: step;
    position: relative;
    padding-inline-start: 4rem;
    min-height: 3rem;
}

.steps-list li::before {
    content: counter(step);
    position: absolute;
    inset-inline-start: 0;
    top: 0;
    width: 3rem;
    height: 3rem;
    display: grid;
    place-items: center;
    border-radius: var(--radius-full);
    background: var(--primary-blue);
    color: var(--white);
    font-weight: 700;
    font-size: 1.15rem;
}

.steps-list h3 {
    margin: 0.35rem 0 0.3rem !important;
    font-size: 1.08rem;
}

.steps-list p {
    margin: 0;
    color: var(--gray-600);
    line-height: 1.8;
}

/* ========== Retailer cards (where to buy) ========== */
.retailer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.retailer-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.retailer-card img {
    height: 64px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
    margin-bottom: var(--spacing-sm);
}

.retailer-card h3 {
    font-size: 1.1rem;
    color: var(--gray-800);
    margin-bottom: 0.35rem;
}

.retailer-card p {
    font-size: 0.92rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.retailer-card .btn {
    font-size: 0.85rem;
    padding: 0.55rem 1.2rem;
}

/* ========== Certification placeholders ========== */
.cert-card {
    background: var(--white);
    border: 1px dashed var(--gray-300);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
}

.cert-card h3 {
    font-size: 1.08rem;
    color: var(--gray-800);
    margin-bottom: 0.4rem;
}

.cert-status {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 0.25rem 0.7rem;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    color: var(--gray-500);
    margin-bottom: var(--spacing-xs);
}

/* ========== Blog ========== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.post-card {
    display: flex;
    flex-direction: column;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.post-card-img {
    aspect-ratio: 16 / 9;
    width: 100%;
    object-fit: cover;
    background: var(--gray-100);
}

.post-card-body {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.post-card h2,
.post-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--gray-800);
    line-height: 1.45;
    margin-bottom: 0.5rem;
}

.post-card p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.75;
    flex: 1;
    margin-bottom: var(--spacing-sm);
}

.post-meta {
    font-size: 0.82rem;
    color: var(--gray-500);
    margin-bottom: 0.5rem;
}

.post-card .read-more {
    font-weight: 700;
    color: var(--primary-blue);
}

.post-card .read-more:hover {
    color: var(--primary-orange);
}

/* Article header + table of contents */
.article-meta {
    color: var(--gray-500);
    font-size: 0.92rem;
    margin-bottom: var(--spacing-lg);
}

.toc {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.toc h2 {
    font-size: 0.95rem !important;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-500) !important;
    margin: 0 0 0.5rem !important;
}

.toc ol {
    margin: 0;
    padding-inline-start: 1.2rem;
}

.toc a {
    text-decoration: none;
    font-weight: 600;
}

/* ========== SKU page layout ========== */
.sku-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: var(--spacing-2xl);
    align-items: start;
}

.sku-media {
    background: var(--gray-50);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-lg);
    display: grid;
    place-items: center;
}

.sku-media img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
}

.sku-specs {
    list-style: none;
    padding: 0;
    margin: var(--spacing-lg) 0 0;
    border-top: 1px solid var(--gray-200);
}

.sku-specs li {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-600);
}

.sku-specs .spec-label {
    font-weight: 700;
    color: var(--gray-800);
    min-width: 140px;
}

.pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: var(--spacing-sm) 0 0;
}

.pill {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    color: var(--gray-700);
    font-size: 0.85rem;
    font-weight: 600;
}

@media (max-width: 860px) {
    .sku-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* ========== Responsive map embed ========== */
.map-embed {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    min-height: 320px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-top: var(--spacing-xl);
}

.map-embed iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* ========== Section intro heading used on the new pages ========== */
.section-intro {
    max-width: 780px;
    margin-inline: auto;
    text-align: center;
    color: var(--gray-600);
    line-height: 1.85;
}

@media (max-width: 768px) {
    .content-section {
        padding: var(--spacing-2xl) 0;
    }

    .definition-lead {
        font-size: 1.05rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .steps-list li {
        padding-inline-start: 3.4rem;
    }

    .steps-list li::before {
        width: 2.6rem;
        height: 2.6rem;
        font-size: 1rem;
    }
}