/* ============================================
   MedSync Blog — Editorial layout
   Reuses tokens from /styles.css (loaded first)
   ============================================ */

.blog-body {
    background: var(--bg);
    color: var(--black);
    font-family: var(--font);
}

.blog-container {
    max-width: 920px;
    margin: 0 auto;
    padding: 0 32px;
}

/* ---- Navigation (matches landing pill nav) ---- */
.blog-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 3000;
    isolation: isolate;
    padding: 12px 24px;
    transition: padding 0.3s ease;
}

.blog-nav-inner {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-pill);
    padding: 8px 8px 8px 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    transition: all 0.3s ease;
}

.blog-nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 16px;
    color: var(--black);
    letter-spacing: -0.01em;
}
.blog-nav-logo-img {
    width: 26px;
    height: 26px;
    border-radius: 6px;
}

.blog-nav-menu {
    display: flex;
    align-items: center;
    gap: 26px;
    font-size: 14px;
}
.blog-nav-menu a {
    color: var(--grey);
    font-weight: 450;
    transition: color 0.15s ease;
}
.blog-nav-menu a:hover {
    color: var(--black);
}
.blog-nav-menu a.is-active {
    color: var(--black);
    font-weight: 500;
}

.blog-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--black);
    color: #fff;
    padding: 10px 18px;
    border-radius: var(--radius-pill);
    font-size: 13.5px;
    font-weight: 500;
    transition: background 0.15s ease, transform 0.2s ease;
}
.blog-cta:hover {
    background: #2d2e33;
    transform: translateY(-1px);
}

/* push content below the fixed nav */
.blog-main {
    padding-top: 80px;
}

@media (max-width: 768px) {
    .blog-nav-menu { display: none; }
    .blog-nav-inner { padding: 8px 8px 8px 18px; }
    .blog-nav { padding: 10px 16px; }
    .blog-main { padding-top: 68px; }
}

/* ---- Hero ---- */
.blog-hero {
    padding: 96px 0 56px;
}
.blog-eyebrow {
    color: var(--accent);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.blog-hero h1 {
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.05;
    margin-bottom: 20px;
}
.blog-hero-sub {
    font-size: 20px;
    line-height: 1.5;
    color: var(--muted);
    max-width: 640px;
}

/* ---- Blog list ---- */
.blog-list-section {
    padding: 32px 0 96px;
}

.blog-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    background: var(--bg);
    transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.blog-card:hover {
    border-color: rgba(26, 115, 232, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px -16px rgba(18, 19, 23, 0.12);
}
.blog-card-link {
    display: block;
    padding: 32px;
    color: inherit;
}
.blog-card-tag {
    display: inline-block;
    padding: 4px 10px;
    background: var(--btn-secondary-bg);
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-pill);
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}
.blog-card h2 {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}
.blog-card h3 {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.015em;
    margin-bottom: 10px;
}
.blog-card p {
    color: var(--muted);
    line-height: 1.55;
    margin-bottom: 16px;
    font-size: 16px;
}
.blog-card-meta {
    font-size: 13px;
    color: var(--light-muted);
}

.blog-card-featured {
    margin-bottom: 24px;
    background: linear-gradient(180deg, #F8F9FC 0%, #ffffff 100%);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
}

/* ---- Article reading layout ---- */
.blog-article {
    padding: 64px 0 96px;
}
.blog-article-header {
    margin-bottom: 48px;
}
.blog-article-tag {
    display: inline-block;
    padding: 4px 10px;
    background: var(--btn-secondary-bg);
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-pill);
    margin-bottom: 20px;
    letter-spacing: 0.02em;
}
.blog-article-header h1 {
    font-size: clamp(34px, 5vw, 52px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.025em;
    margin-bottom: 20px;
}
.blog-article-lede {
    font-size: 20px;
    line-height: 1.55;
    color: var(--muted);
    margin-bottom: 24px;
}
.blog-article-meta {
    font-size: 14px;
    color: var(--light-muted);
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
}
.blog-article-meta::before {
    content: "";
    width: 32px;
    height: 1px;
    background: var(--border);
}

.blog-article-body {
    font-size: 18px;
    line-height: 1.7;
    color: var(--grey);
}
.blog-article-body h2 {
    font-size: 30px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--black);
    margin: 56px 0 16px;
}
.blog-article-body h3 {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.25;
    color: var(--black);
    margin: 36px 0 12px;
}
.blog-article-body p {
    margin-bottom: 20px;
}
.blog-article-body strong {
    color: var(--black);
    font-weight: 600;
}
.blog-article-body a {
    color: var(--accent);
    border-bottom: 1px solid rgba(26, 115, 232, 0.3);
    transition: border-color 0.15s ease;
}
.blog-article-body a:hover {
    border-color: var(--accent);
}
.blog-article-body ul, .blog-article-body ol {
    margin: 0 0 24px 24px;
    padding-left: 8px;
}
.blog-article-body ul { list-style: disc; }
.blog-article-body ol { list-style: decimal; }
.blog-article-body li {
    margin-bottom: 10px;
    padding-left: 6px;
}
.blog-article-body li::marker {
    color: var(--light-muted);
}
.blog-article-body blockquote {
    border-left: 3px solid var(--accent);
    padding: 4px 0 4px 24px;
    margin: 32px 0;
    font-size: 20px;
    line-height: 1.5;
    color: var(--black);
    font-weight: 500;
    font-style: italic;
}
.blog-article-body code {
    background: var(--btn-secondary-bg);
    padding: 2px 8px;
    border-radius: 6px;
    font-family: 'SF Mono', Menlo, Consolas, monospace;
    font-size: 0.92em;
    color: var(--black);
}
.blog-article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 32px 0;
    font-size: 15px;
}
.blog-article-body th, .blog-article-body td {
    text-align: left;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}
.blog-article-body th {
    font-weight: 600;
    color: var(--black);
    background: var(--bg-subtle);
    font-size: 13px;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}
.blog-article-body td {
    color: var(--grey);
}

.blog-toc {
    background: var(--bg-subtle);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-card);
    padding: 24px 28px;
    margin: 0 0 40px;
}
.blog-toc-title {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--light-muted);
    margin-bottom: 12px;
}
.blog-toc ol {
    margin: 0;
    padding-left: 24px;
    list-style: decimal;
    font-size: 15px;
}
.blog-toc li {
    margin-bottom: 6px;
}
.blog-toc a {
    color: var(--grey);
    border-bottom: none;
}
.blog-toc a:hover {
    color: var(--accent);
}

.blog-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 32px;
}
.blog-back:hover { color: var(--accent); }

/* ---- CTA ---- */
.blog-cta-section {
    padding: 80px 0;
    background: var(--bg-subtle);
    border-top: 1px solid var(--border-light);
}
.blog-cta-inner {
    text-align: center;
}
.blog-cta-inner h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}
.blog-cta-inner p {
    font-size: 18px;
    color: var(--muted);
    margin-bottom: 28px;
}
.blog-cta-inner .btn-dark {
    display: inline-block;
    background: var(--black);
    color: #fff;
    padding: 14px 28px;
    border-radius: var(--radius-pill);
    font-weight: 500;
    font-size: 16px;
    transition: background 0.15s ease;
}
.blog-cta-inner .btn-dark:hover {
    background: #2a2c33;
}

.blog-inline-cta {
    margin: 48px 0;
    padding: 32px;
    background: linear-gradient(135deg, #F8F9FC 0%, #ffffff 100%);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-card);
    text-align: center;
}
.blog-inline-cta h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--black);
}
.blog-inline-cta p {
    color: var(--muted);
    margin-bottom: 20px;
    font-size: 16px;
}
.blog-inline-cta-btn {
    display: inline-block;
    background: var(--black);
    color: #fff !important;
    padding: 12px 24px;
    border-radius: var(--radius-pill);
    font-weight: 500;
    font-size: 15px;
    border-bottom: none !important;
}

/* ---- Footer ---- */
.blog-footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-light);
}
.blog-footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
.blog-footer-brand {
    font-weight: 700;
    color: var(--black);
}
.blog-footer-links {
    display: flex;
    gap: 24px;
    font-size: 14px;
}
.blog-footer-links a {
    color: var(--muted);
}
.blog-footer-links a:hover {
    color: var(--black);
}

@media (max-width: 640px) {
    .blog-hero { padding: 64px 0 40px; }
    .blog-card-link { padding: 24px; }
    .blog-article { padding: 40px 0 64px; }
    .blog-article-body { font-size: 17px; }
    .blog-container { padding: 0 20px; }
}