/* === Blog Shared Styles === */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800&display=swap');

:root {
    --primary: #2F6F73;
    --primary-dark: #245558;
    --dark: #2B3D4A;
    --accent: #00B894;
    --cta: #25D366;
    --light: #F5F0EB;
    --white: #FFFFFF;
    --text-muted: #5E7280;
    --border: #E8E8E8;
    --bg-code: #F4F6F8;
}

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

body {
    font-family: 'Poppins', -apple-system, sans-serif;
    color: var(--dark);
    background: var(--white);
    line-height: 1.8;
    font-size: 17px;
}

/* === NAV BAR === */
.blog-nav {
    position: sticky; top: 0; z-index: 100;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    display: flex; justify-content: space-between; align-items: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.blog-nav-logo { height: 44px; width: auto; }
.blog-nav-links { display: flex; gap: 20px; align-items: center; }
.blog-nav-links a {
    text-decoration: none; color: var(--dark);
    font-size: 14px; font-weight: 500;
    transition: color 0.2s;
}
.blog-nav-links a:hover { color: var(--primary); }
.blog-nav-links .btn-nav-wa {
    background: var(--cta); color: #fff;
    padding: 8px 18px; border-radius: 24px;
    font-weight: 600; font-size: 13px;
    display: flex; align-items: center; gap: 6px;
}
.blog-nav-links .btn-nav-wa:hover { opacity: 0.9; color: #fff; }

/* === ARTICLE LAYOUT === */
.article-container {
    max-width: 760px;
    margin: 0 auto;
    padding: 40px 24px 60px;
}

/* === BREADCRUMB === */
.breadcrumb {
    font-size: 13px; color: var(--text-muted);
    margin-bottom: 24px;
}
.breadcrumb a { color: var(--primary); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* === ARTICLE HEADER === */
.article-header { margin-bottom: 36px; }
.article-tag {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    font-size: 11px; font-weight: 600;
    letter-spacing: 1px; text-transform: uppercase;
    padding: 4px 12px; border-radius: 16px;
    margin-bottom: 14px;
}
.article-header h1 {
    font-size: 36px; font-weight: 800;
    line-height: 1.2; color: var(--dark);
    margin-bottom: 14px;
}
.article-meta {
    font-size: 14px; color: var(--text-muted);
    display: flex; gap: 16px; align-items: center;
    flex-wrap: wrap;
}
.article-hero {
    width: 100%; border-radius: 16px;
    margin: 24px 0 36px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}

/* === ARTICLE BODY === */
.article-body h2 {
    font-size: 26px; font-weight: 700;
    color: var(--dark); margin: 40px 0 16px;
    padding-top: 12px;
}
.article-body h3 {
    font-size: 20px; font-weight: 600;
    color: var(--primary-dark); margin: 28px 0 12px;
}
.article-body p { margin-bottom: 18px; }
.article-body ul, .article-body ol {
    margin: 0 0 18px 24px;
}
.article-body li { margin-bottom: 8px; }
.article-body strong { color: var(--dark); }
.article-body a { color: var(--primary); text-decoration: underline; }
.article-body blockquote {
    border-left: 4px solid var(--primary);
    background: var(--light);
    padding: 16px 20px;
    margin: 24px 0;
    border-radius: 0 12px 12px 0;
    font-style: italic;
    color: var(--primary-dark);
}

/* === COMPARISON TABLE === */
.comparison-table {
    width: 100%; border-collapse: collapse;
    margin: 24px 0; border-radius: 12px;
    overflow: hidden; font-size: 15px;
}
.comparison-table thead { background: var(--primary); color: #fff; }
.comparison-table th { padding: 14px 16px; text-align: left; font-weight: 600; }
.comparison-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.comparison-table tr:nth-child(even) { background: var(--light); }
.comparison-table .win { color: var(--accent); font-weight: 600; }
.comparison-table .lose { color: #E74C3C; }

/* === CALLOUT BOX === */
.callout {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff; border-radius: 16px;
    padding: 28px 32px; margin: 32px 0;
    text-align: center;
}
.callout h3 { color: #fff; margin: 0 0 10px; font-size: 22px; }
.callout p { opacity: 0.9; margin-bottom: 16px; font-size: 15px; }
.callout .btn-cta {
    display: inline-block; background: var(--cta);
    color: #fff; padding: 14px 32px; border-radius: 30px;
    text-decoration: none; font-weight: 700; font-size: 16px;
    transition: transform 0.2s, box-shadow 0.2s;
}
.callout .btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37,211,102,0.4);
}

/* === KEY FACT === */
.key-fact {
    background: var(--light);
    border-radius: 12px;
    padding: 20px 24px; margin: 24px 0;
    display: flex; gap: 14px; align-items: flex-start;
}
.key-fact .fact-icon {
    font-size: 28px; flex-shrink: 0; margin-top: 2px;
}
.key-fact p { margin: 0; font-size: 15px; }

/* === STEP CARD (for how-to) === */
.step-card {
    display: flex; gap: 20px; align-items: flex-start;
    margin: 24px 0; padding: 20px; background: var(--light);
    border-radius: 14px;
}
.step-num {
    width: 44px; height: 44px; min-width: 44px;
    background: var(--primary); color: #fff;
    border-radius: 50%; display: flex;
    align-items: center; justify-content: center;
    font-weight: 800; font-size: 18px;
}
.step-card h3 { margin: 0 0 6px; font-size: 18px; }
.step-card p { margin: 0; font-size: 15px; color: var(--text-muted); }

/* === FAQ SECTION === */
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
    display: flex; justify-content: space-between; align-items: center;
    padding: 18px 0; cursor: pointer; font-weight: 600;
    font-size: 16px; color: var(--dark);
}
.faq-q::after { content: '+'; font-size: 24px; color: var(--primary); transition: transform 0.3s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a {
    max-height: 0; overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s;
    font-size: 15px; color: var(--text-muted); line-height: 1.7;
}
.faq-item.open .faq-a { max-height: 400px; padding-bottom: 18px; }

/* === RELATED POSTS === */
.related-posts { margin: 48px 0 24px; }
.related-posts h2 { font-size: 22px; margin-bottom: 20px; }
.related-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}
.related-card {
    background: var(--light); border-radius: 14px;
    padding: 20px; text-decoration: none; color: var(--dark);
    transition: transform 0.2s, box-shadow 0.2s;
}
.related-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.related-card .related-tag {
    font-size: 11px; color: var(--primary);
    font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.5px; margin-bottom: 8px;
}
.related-card h3 { font-size: 16px; font-weight: 600; line-height: 1.3; }

/* === FOOTER === */
.blog-footer {
    background: var(--dark); color: rgba(255,255,255,0.7);
    text-align: center; padding: 32px 24px;
    font-size: 14px;
}
.blog-footer a { color: var(--accent); text-decoration: none; }

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .article-header h1 { font-size: 28px; }
    .article-body h2 { font-size: 22px; }
    .article-container { padding: 24px 16px 48px; }
    .blog-nav-links a:not(.btn-nav-wa) { display: none; }
    .comparison-table { font-size: 13px; }
    .comparison-table th, .comparison-table td { padding: 8px 10px; }
    .callout { padding: 24px 20px; }
    .callout h3 { font-size: 19px; }
}