/* ── Shared styles for all /blog/* pages ── */

:root {
    --blue-600: #2563EB;
    --blue-700: #1D4ED8;
    --blue-50:  #EFF6FF;
    --text:     #0F172A;
    --text-secondary: #475569;
    --bg:       #FAFBFF;
    --border:   #E2E8F0;
    --radius:   16px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; }
body { font-family: 'DM Sans', sans-serif; background: var(--bg); color: var(--text); }

/* ── Nav ── */
nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    height: 72px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(250, 251, 255, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: 1240px; width: 100%; height: 72px;
    padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.nav-logo img { width: 32px; height: 32px; border-radius: 8px; display: block; }
.nav-logo span { font-family: 'Syne', sans-serif; font-size: 1.3rem; font-weight: 700; color: var(--text); line-height: 1; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links li { display: flex; align-items: center; margin: 0; padding: 0; }
.nav-links a { display: flex; align-items: center; height: 72px; color: var(--text-secondary); text-decoration: none; font-size: 0.88rem; font-weight: 500; line-height: 1; transition: color 0.2s ease; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-cta {
    display: inline-flex; align-items: center; justify-content: center;
    min-height: 40px; padding: 9px 22px;
    background: var(--text); color: #fff;
    border-radius: 999px;
    font-family: 'DM Sans', sans-serif; font-size: 0.84rem; font-weight: 600; line-height: 1;
    text-decoration: none; border: none; cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}
.nav-cta:hover { background: var(--blue-700); transform: translateY(-1px); }
.hamburger {
    display: none; cursor: pointer; flex-direction: column; gap: 5px;
    background: none; border: none;
    min-width: 44px; height: 72px;
    align-items: center; justify-content: center; flex-shrink: 0;
}
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; }

@media (max-width: 900px) {
    .nav-links { display: none !important; }
    .nav-links.open {
        display: flex !important; flex-direction: column; align-items: flex-start;
        position: fixed; top: 72px; left: 0; right: 0; bottom: 0;
        background: rgba(250, 251, 255, 0.98); backdrop-filter: blur(20px);
        padding: 32px 24px; gap: 4px; z-index: 200;
    }
    .nav-links.open li { width: 100%; }
    .nav-links.open a { height: 48px; font-size: 1rem; }
    .hamburger { display: flex; }
}

/* ── Blog index ── */
.container { max-width: 1000px; margin: 0 auto; padding: 112px 24px 72px; }
.blog-page-title { font-family: 'Syne', sans-serif; font-size: 2.2rem; font-weight: 700; letter-spacing: -0.03em; margin: 0 0 8px; }
.blog-subtitle { color: var(--text-secondary); font-size: 1rem; margin: 0 0 32px; line-height: 1.6; max-width: 680px; }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 28px; }
.blog-card { background: white; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: transform 0.3s, box-shadow 0.3s; text-decoration: none; color: inherit; display: block; }
.blog-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.06); }
.blog-card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; object-position: center; background: var(--blue-50); display: block; }
.blog-card-body { padding: 24px; }
.blog-card-tag { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue-600); margin-bottom: 10px; }
.blog-card-title { font-family: 'Syne', sans-serif; font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; line-height: 1.4; }
.blog-card-desc { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; }
.blog-card-meta { font-size: 0.76rem; color: #94A3B8; }

/* ── Blog article ── */
article { max-width: 760px; margin: 0 auto; padding: 120px 24px 80px; line-height: 1.85; }
article h1 { font-family: 'Syne', sans-serif; font-size: 2.2rem; font-weight: 700; letter-spacing: -0.03em; margin-bottom: 16px; line-height: 1.25; }
article h2 { font-family: 'Syne', sans-serif; font-size: 1.4rem; font-weight: 700; margin-top: 40px; margin-bottom: 14px; }
article h3 { font-family: 'Syne', sans-serif; font-size: 1.1rem; font-weight: 700; margin-top: 28px; margin-bottom: 10px; }
article p { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 16px; }
article ul, article ol { padding-left: 24px; margin-bottom: 16px; }
/* Scoped to article so nav <li> items are never affected */
article li { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 8px; line-height: 1.6; }
article strong { color: var(--text); }
article a { color: var(--blue-600); }

/* ── Shared components ── */
.meta { font-size: 0.84rem; color: var(--text-secondary); margin-bottom: 32px; }
.hero-img { width: 100%; border-radius: 12px; margin-bottom: 32px; }
.breadcrumb { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 24px; }
.breadcrumb a { color: var(--blue-600); text-decoration: none; }
.tldr { background: var(--blue-50); border-left: 4px solid var(--blue-600); padding: 20px 24px; border-radius: 0 12px 12px 0; margin-bottom: 32px; }
.tldr strong { display: block; margin-bottom: 8px; font-size: 0.88rem; color: var(--text); }
.intro-box { background: var(--blue-50); border-left: 4px solid var(--blue-600); padding: 20px 24px; border-radius: 0 12px 12px 0; margin-bottom: 28px; }
.intro-box strong { display: block; margin-bottom: 8px; color: var(--text); }
.cta-box { background: linear-gradient(135deg, #2563EB, #1D4ED8); color: white; padding: 32px; border-radius: 16px; text-align: center; margin: 40px 0; }
.cta-box h3 { font-family: 'Syne', sans-serif; color: white; margin-top: 0; }
.cta-box p { color: rgba(255,255,255,0.85); margin-bottom: 0; }
.cta-box a { background: white; color: var(--blue-600); padding: 12px 32px; border-radius: 10px; text-decoration: none; font-weight: 700; display: inline-block; margin-top: 12px; font-size: 0.95rem; }
.faq { margin-top: 40px; }
.faq-item { border-bottom: 1px solid var(--border); padding: 16px 0; }
.faq-q { font-weight: 700; color: var(--text); font-size: 0.95rem; margin-bottom: 8px; }
.faq-a { font-size: 0.9rem; color: var(--text-secondary); margin: 0; }
.related { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border); }
.related h3 { font-family: 'Syne', sans-serif; margin-top: 0; margin-bottom: 16px; }
.related a { display: block; margin-bottom: 12px; font-size: 0.92rem; color: var(--blue-600); text-decoration: none; }
.related a:hover { text-decoration: underline; }

@media (max-width: 640px) {
    .blog-page-title { font-size: 1.7rem; }
    .blog-grid { grid-template-columns: 1fr; }
    article h1 { font-size: 1.7rem; }
    article h2 { font-size: 1.2rem; }
}