/* ============================================
   BLOG.CSS — Field Notes styles
   ============================================ */

/* ── BLOG NAV ────────────────────────────── */
.blog-nav {
    position: fixed; top: 0; left: 0; width: 100%; height: 72px;
    background: rgba(10,10,10,0.85); backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border); z-index: 1000;
}
.blog-nav .nav-inner { max-width: 1200px; margin: 0 auto; height: 100%; display: flex; align-items: center; padding: 0 40px; }
.blog-nav .nav-left { display: flex; align-items: center; gap: 20px; }
.blog-nav .nav-name { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; color: var(--accent); transition: opacity 0.2s; }
.blog-nav .nav-name:hover { opacity: 0.7; }
.blog-nav-tag { font-size: 12px; font-weight: 700; color: rgba(255,255,255,0.4); letter-spacing: 0.1em; text-transform: uppercase; padding: 4px 12px; border-radius: 6px; background: rgba(255,255,255,0.04); }

/* ── BLOG HERO ───────────────────────────── */
.blog-hero {
    min-height: 40vh; display: flex; align-items: center; justify-content: center;
    padding: 140px 40px 60px; text-align: center; position: relative; overflow: hidden;
}
.blog-hero-content { max-width: 600px; position: relative; z-index: 2; }
.blog-tag {
    font-size: 13px; font-weight: 700; color: var(--accent);
    letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 16px; display: block;
}
.blog-title {
    font-size: clamp(36px, 6vw, 56px); font-weight: 700; letter-spacing: -0.03em; line-height: 1.1;
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.7) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    margin-bottom: 16px;
}
.blog-subtitle { font-size: 16px; color: var(--text-muted); line-height: 1.6; }
.blog-hero-glow {
    position: absolute; top: 40%; left: 50%; transform: translate(-50%,-50%);
    width: 500px; height: 500px; border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--element-rgb, 228,255,26),0.03) 0%, transparent 70%);
    pointer-events: none; z-index: 1;
}

/* ── BLOG CONTENT ────────────────────────── */
.blog-content { max-width: 900px; margin: 0 auto; padding: 0 40px 80px; }

/* ── BLOG FILTERS ────────────────────────── */
.blog-filters {
    display: flex; gap: 8px; margin-bottom: 40px; flex-wrap: wrap;
}
.blog-filter {
    padding: 6px 16px; border-radius: 100px; font-size: 13px; font-weight: 600;
    background: rgba(255,255,255,0.03); border: 1px solid var(--border);
    color: var(--text-muted); cursor: pointer; transition: all 0.2s;
    font-family: 'Inter', sans-serif;
}
.blog-filter:hover { border-color: rgba(var(--element-rgb, 228,255,26),0.15); }
.blog-filter.active { background: rgba(var(--element-rgb, 228,255,26),0.08); border-color: rgba(var(--element-rgb, 228,255,26),0.25); color: var(--accent); }

/* ── BLOG CARD GRID ──────────────────────── */
.blog-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}
.blog-card {
    padding: 28px; border-radius: 16px;
    background: rgba(255,255,255,0.02); border: 1px solid var(--border);
    transition: all 0.3s; text-decoration: none; display: block;
}
.blog-card:hover {
    border-color: rgba(var(--element-rgb, 228,255,26),0.15); background: rgba(255,255,255,0.04);
    transform: translateY(-3px); box-shadow: 0 12px 32px rgba(0,0,0,0.3);
}
.blog-card-cover { margin: -28px -28px 16px; border-radius: 14px 14px 0 0; overflow: hidden; height: 180px; }
.blog-card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.blog-card:hover .blog-card-cover img { transform: scale(1.04); }
.blog-card.featured { border-color: rgba(var(--element-rgb, 228,255,26),0.12); }
.blog-card-emoji { font-size: 32px; margin-bottom: 16px; }
.blog-card-cat {
    font-size: 11px; font-weight: 700; color: var(--accent);
    letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 10px;
}
.blog-card-title {
    font-size: 20px; font-weight: 700; color: var(--text);
    letter-spacing: -0.01em; line-height: 1.3; margin-bottom: 10px;
}
.blog-card-excerpt {
    font-size: 14px; color: var(--text-muted); line-height: 1.6; margin-bottom: 16px;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.blog-card-meta {
    display: flex; gap: 8px; font-size: 12px; color: rgba(255,255,255,0.3); font-weight: 500;
}

/* ── POST PAGE ───────────────────────────── */
.post-hero {
    min-height: 35vh; display: flex; align-items: center; justify-content: center;
    padding: 140px 40px 60px; text-align: center; position: relative;
}
.post-hero-content { max-width: 700px; }
.post-category {
    font-size: 13px; font-weight: 700; color: var(--accent);
    letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 16px; display: block;
}
.post-title {
    font-size: clamp(32px, 5vw, 48px); font-weight: 700; letter-spacing: -0.02em;
    line-height: 1.15; color: var(--text); margin-bottom: 16px;
}
.post-meta {
    display: flex; align-items: center; justify-content: center; gap: 8px;
    font-size: 14px; color: var(--text-muted); margin-bottom: 16px;
}
.post-dot { opacity: 0.3; }
.post-tags { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; }
.post-tag {
    padding: 3px 10px; border-radius: 6px; font-size: 11px; font-weight: 600;
    background: rgba(255,255,255,0.04); color: var(--text-muted);
    border: 1px solid var(--border);
}

/* ── POST BODY ───────────────────────────── */
.post-body {
    max-width: 680px; margin: 0 auto; padding: 0 40px 60px;
    font-size: 16px; color: rgba(255,255,255,0.85); line-height: 1.8;
}
.post-body h2 {
    font-size: 24px; font-weight: 700; color: var(--text);
    margin: 40px 0 16px; letter-spacing: -0.01em;
}
.post-body h3 {
    font-size: 18px; font-weight: 600; color: var(--text);
    margin: 32px 0 12px;
}
.post-body p { margin-bottom: 20px; }
.post-body ul, .post-body ol { margin-bottom: 20px; padding-left: 24px; }
.post-body li { margin-bottom: 8px; }
.post-body strong { color: var(--text); font-weight: 600; }
.post-body code {
    font-size: 14px; padding: 2px 6px; border-radius: 4px;
    background: rgba(var(--element-rgb, 228,255,26),0.06); color: var(--accent);
    font-family: 'SF Mono', 'Fira Code', monospace;
}
.post-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.post-body a:hover { opacity: 0.8; }

/* ── POST NAVIGATION ─────────────────────── */
.post-nav {
    display: flex; justify-content: space-between; gap: 20px;
    max-width: 680px; margin: 0 auto; padding: 20px 40px 80px;
}
.post-nav-btn {
    flex: 1; padding: 20px; border-radius: 14px;
    background: rgba(255,255,255,0.02); border: 1px solid var(--border);
    transition: all 0.3s; text-decoration: none;
}
.post-nav-btn:hover {
    border-color: rgba(var(--element-rgb, 228,255,26),0.15); background: rgba(255,255,255,0.04);
    transform: translateY(-2px);
}
.post-nav-btn.next { text-align: right; }
.pnb-arrow { font-size: 18px; display: block; margin-bottom: 4px; }
.pnb-label { font-size: 10px; font-weight: 700; color: var(--text-muted); letter-spacing: 0.08em; }
.pnb-title { font-size: 14px; font-weight: 700; color: var(--text); display: block; margin-top: 4px; }

/* ── RESPONSIVE ──────────────────────────── */
@media (max-width: 768px) {
    .blog-hero { padding: 120px 20px 40px; min-height: 30vh; }
    .blog-content { padding: 0 20px 60px; }
    .blog-grid { grid-template-columns: 1fr; }
    .post-hero { padding: 120px 20px 40px; }
    .post-body { padding: 0 20px 40px; }
    .post-nav { flex-direction: column; padding: 20px 20px 60px; }
    .post-nav-btn.next { text-align: left; }
}