/*
 * LYF+ — Shared stylesheet for content/article pages
 * Color palette aligned with the V2 mobile app (emerald + indigo).
 */

:root {
    --primary-color: #10B981;      /* emerald */
    --secondary-color: #6366F1;    /* indigo */
    --accent-color: #F472B6;       /* pink */
    --amber-color: #F59E0B;
    --light-color: #FAF5F0;
    --cream-color: #FBF8F5;
    --dark-color: #0F1A15;
    --text-body: #1F2937;
    --text-muted: #6B7280;
    --border-color: #E5E7EB;
    --code-bg: #F3F4F6;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-body);
    background-color: #fff;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ── Medical disclaimer bar (YMYL) ── */
.disclaimer-bar {
    background-color: #FEF3C7;
    color: #78350F;
    padding: 10px 20px;
    text-align: center;
    font-size: 0.85rem;
    border-bottom: 1px solid #FDE68A;
}
.disclaimer-bar strong { font-weight: 600; }

/* ── Navigation ── */
nav.site-nav {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}
.site-logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
}
.site-logo img { width: 28px; height: 28px; margin-right: 10px; border-radius: 6px; }
.nav-right { display: flex; align-items: center; gap: 20px; }
.nav-links { display: flex; list-style: none; gap: 25px; }
.nav-links a { text-decoration: none; color: var(--dark-color); font-weight: 500; transition: color 0.2s; font-size: 0.95rem; }
.nav-links a:hover { color: var(--primary-color); }
.lang-switcher { display: flex; gap: 8px; font-size: 0.9rem; }
.lang-switcher a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.2s;
}
.lang-switcher a:hover { background: var(--light-color); }
.lang-switcher a.active { color: var(--primary-color); font-weight: 600; }
.nav-cta {
    padding: 8px 16px;
    background: var(--dark-color);
    color: #fff;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
}
.nav-cta:hover { opacity: 0.9; }

/* ── Article layout ── */
.article-hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 60px 0 50px;
}
.article-hero .container { max-width: 800px; }
.article-hero .breadcrumb {
    font-size: 0.85rem;
    opacity: 0.85;
    margin-bottom: 18px;
}
.article-hero .breadcrumb a { color: white; text-decoration: none; opacity: 0.9; }
.article-hero .breadcrumb a:hover { opacity: 1; text-decoration: underline; }
.article-hero .breadcrumb .sep { opacity: 0.6; margin: 0 8px; }
.article-hero h1 {
    font-size: 2.3rem;
    line-height: 1.2;
    margin-bottom: 18px;
    font-weight: 700;
}
.article-hero .lead {
    font-size: 1.15rem;
    line-height: 1.6;
    opacity: 0.95;
    max-width: 720px;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 25px;
    font-size: 0.9rem;
    opacity: 0.9;
}
.article-meta .meta-item { display: flex; align-items: center; gap: 6px; }

.article-body {
    max-width: 760px;
    margin: 0 auto;
    padding: 60px 20px 40px;
}
.article-body h2 {
    font-size: 1.7rem;
    margin-top: 50px;
    margin-bottom: 20px;
    color: var(--dark-color);
    font-weight: 700;
    line-height: 1.3;
}
.article-body h2:first-of-type { margin-top: 0; }
.article-body h3 {
    font-size: 1.25rem;
    margin-top: 35px;
    margin-bottom: 14px;
    color: var(--dark-color);
    font-weight: 600;
    line-height: 1.4;
}
.article-body p {
    margin-bottom: 18px;
    color: var(--text-body);
    font-size: 1.05rem;
    line-height: 1.75;
}
.article-body p.lead-answer {
    font-size: 1.15rem;
    color: var(--dark-color);
    font-weight: 500;
    padding: 16px 20px;
    background: var(--light-color);
    border-left: 4px solid var(--primary-color);
    border-radius: 4px;
    margin-bottom: 28px;
}
.article-body ul, .article-body ol {
    margin-bottom: 22px;
    padding-left: 28px;
}
.article-body li {
    margin-bottom: 10px;
    color: var(--text-body);
    font-size: 1.05rem;
    line-height: 1.7;
}
.article-body strong { color: var(--dark-color); font-weight: 600; }
.article-body em { font-style: italic; }
.article-body a {
    color: var(--primary-color);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}
.article-body a:hover { color: var(--secondary-color); }

/* Key callout boxes */
.article-body .callout {
    background: var(--cream-color);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--secondary-color);
    padding: 20px 24px;
    border-radius: 6px;
    margin: 28px 0;
}
.article-body .callout.info { border-left-color: var(--secondary-color); }
.article-body .callout.warn { border-left-color: var(--amber-color); background: #FFFBEB; }
.article-body .callout.key { border-left-color: var(--primary-color); background: #ECFDF5; }
.article-body .callout h3 {
    margin-top: 0;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-muted);
}
.article-body .callout p:last-child { margin-bottom: 0; }

/* Data table for comparisons */
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 25px 0;
    font-size: 0.95rem;
}
.article-body th, .article-body td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}
.article-body th {
    background: var(--light-color);
    font-weight: 600;
    color: var(--dark-color);
}
.article-body tr:hover { background: var(--cream-color); }

/* Sources / references */
.article-sources {
    max-width: 760px;
    margin: 50px auto 0;
    padding: 35px 20px 0;
    border-top: 1px solid var(--border-color);
}
.article-sources h2 {
    font-size: 1.25rem;
    margin-bottom: 18px;
    color: var(--dark-color);
}
.article-sources ol {
    padding-left: 22px;
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}
.article-sources li { margin-bottom: 10px; }
.article-sources a {
    color: var(--primary-color);
    text-decoration: none;
    word-break: break-all;
}
.article-sources a:hover { text-decoration: underline; }

/* Inline CTA block */
.article-cta {
    max-width: 760px;
    margin: 45px auto 0;
    padding: 32px 28px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 12px;
    text-align: center;
}
.article-cta h3 {
    font-size: 1.35rem;
    margin-bottom: 10px;
    color: white;
}
.article-cta p {
    font-size: 1rem;
    opacity: 0.95;
    margin-bottom: 22px;
}
.article-cta .store-button img { width: 160px; height: 54px; }
.store-button {
    display: inline-block;
    transition: transform 0.2s ease;
}
.store-button:hover { transform: translateY(-2px); }

/* "Related" links section */
.article-related {
    max-width: 760px;
    margin: 50px auto 0;
    padding: 35px 20px 0;
    border-top: 1px solid var(--border-color);
}
.article-related h2 {
    font-size: 1.25rem;
    margin-bottom: 18px;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}
.related-card {
    background: var(--cream-color);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
    display: block;
}
.related-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}
.related-card .tag {
    font-size: 0.75rem;
    color: var(--primary-color);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
}
.related-card h3 {
    font-size: 1rem;
    color: var(--dark-color);
    margin: 6px 0 8px;
}
.related-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin: 0;
}

/* ── Footer ── */
footer.site-footer {
    background-color: var(--dark-color);
    color: white;
    padding: 40px 0 25px;
    text-align: center;
    margin-top: 70px;
}
.footer-links { margin-bottom: 15px; }
.footer-links a { color: white; margin: 0 12px; text-decoration: none; font-size: 0.9rem; }
.footer-links a:hover { color: var(--primary-color); }
.footer-disclaimer {
    font-size: 0.78rem;
    color: #888;
    max-width: 720px;
    margin: 18px auto;
    line-height: 1.55;
    padding: 0 20px;
}
.copyright { font-size: 0.82rem; color: #666; }

/* ── Responsive ── */
@media (max-width: 768px) {
    .article-hero { padding: 45px 0 40px; }
    .article-hero h1 { font-size: 1.75rem; }
    .article-hero .lead { font-size: 1.05rem; }
    .article-body { padding: 40px 18px 30px; }
    .article-body h2 { font-size: 1.4rem; margin-top: 38px; }
    .article-body h3 { font-size: 1.1rem; }
    .article-body p, .article-body li { font-size: 1rem; }
    .nav-container { flex-direction: column; gap: 12px; padding: 12px 15px; }
    .nav-right { flex-wrap: wrap; justify-content: center; gap: 12px; }
    .nav-links { gap: 12px; flex-wrap: wrap; justify-content: center; }
    .article-meta { gap: 12px; font-size: 0.82rem; }
}