/* Blog Voice Studio — cùng tông màu với trang chính (trắng ngà + tím) */
:root {
  --bg: #f6f3fb;
  --card: #ffffff;
  --ink: #221638;
  --muted: #7a7191;
  --accent: #7c3aed;
  --accent2: #a855f7;
  --border: #e6def5;
  --lav: #efe9fb;
}
* { box-sizing: border-box; }
html, body { overflow-x: clip; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
}
.blog-top {
  display: flex; align-items: center; gap: 20px;
  padding: 12px 20px; background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
.blog-logo { font-weight: 800; font-size: 20px; color: var(--accent); text-decoration: none; }
.blog-top nav { margin-left: auto; display: flex; gap: 6px; }
.blog-top nav a {
  padding: 6px 14px; border-radius: 999px; color: var(--muted);
  font-size: 14px; text-decoration: none;
}
.blog-top nav a:hover { background: var(--lav); color: var(--accent); }
.blog-main { max-width: 760px; margin: 0 auto; padding: 28px 18px 10px; }
.blog-main h1 { font-size: 29px; line-height: 1.3; margin: 4px 0 10px; }
.blog-main h2 { font-size: 22px; margin: 26px 0 8px; }
.blog-main h3 { font-size: 18px; margin: 20px 0 6px; }
.blog-main p, .blog-main li { font-size: 16.5px; line-height: 1.65; }
.blog-main a { color: var(--accent); }
.blog-date { color: var(--muted); font-size: 14px; margin: 0 0 14px; }
.blog-intro { color: var(--muted); font-size: 16.5px; line-height: 1.6; }
.blog-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 20px 22px; margin: 16px 0;
}
.blog-card h2 { margin: 0 0 6px; font-size: 21px; }
.blog-card h2 a { color: var(--ink); text-decoration: none; }
.blog-card h2 a:hover { color: var(--accent); }
.blog-card p { color: var(--muted); margin: 6px 0; }
.blog-more { font-weight: 600; text-decoration: none; }
.blog-cta {
  background: var(--lav); border: 1px solid var(--border);
  border-radius: 16px; padding: 18px 22px; margin: 28px 0 8px;
}
.blog-cta p { margin: 6px 0; }
.blog-cta .cta-btn {
  display: inline-block; margin-top: 8px; padding: 10px 22px;
  background: var(--accent); color: #fff; border-radius: 999px;
  font-weight: 700; text-decoration: none;
}
.blog-foot {
  text-align: center; color: var(--muted); font-size: 13px;
  padding: 18px 12px 30px; line-height: 1.6;
}
.blog-foot a { color: var(--accent); }
@media (max-width: 640px) {
  .blog-main h1 { font-size: 24px; }
  .blog-main { padding: 20px 14px 8px; }
}