/* ==========================================================================
   blog.css — cấu trúc chung của mọi trang cá nhân.
   Màu sắc, kiểu chữ và sắc thái do tệp trong themes/ quyết định; ở đây chỉ
   định nghĩa bố cục và khoảng cách. Mỗi mẫu khai báo lại các biến --b-*.
   ========================================================================== */

body.blog {
  /* Giá trị mặc định; từng theme ghi đè */
  --b-bg:        var(--bg);
  --b-surface:   var(--surface);
  --b-ink:       var(--ink);
  --b-ink-2:     var(--ink-2);
  --b-ink-3:     var(--ink-3);
  --b-line:      var(--line);
  --b-display:   var(--font-display);
  --b-body:      var(--font-sans);
  --b-radius:    var(--radius-lg);
  --b-hero-h:    clamp(220px, 34vw, 420px);
  --accent:      var(--brand);

  display: flex; flex-direction: column; min-height: 100vh;
  background: var(--b-bg); color: var(--b-ink);
  font-family: var(--b-body);
}
body.blog > main { flex: 1; }

/* --- Thanh điều hướng riêng của blog ------------------------------------ */
.blog-bar {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--b-bg) 90%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--b-line);
}
.blog-bar__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 60px; }
.blog-bar__name {
  font-family: var(--b-display); font-size: 1.1rem; letter-spacing: -.01em;
  text-decoration: none; display: flex; align-items: center; gap: .35rem;
}
.blog-bar__nav { display: flex; gap: 1.2rem; align-items: center; flex-wrap: wrap; }
.blog-bar__nav a { font-size: .88rem; text-decoration: none; color: var(--b-ink-3); }
.blog-bar__nav a:hover { color: var(--accent); }
.blog-bar__edit { color: var(--accent) !important; font-weight: 550; }
@media (max-width: 560px) {
  .blog-bar__inner { flex-direction: column; align-items: flex-start; gap: .35rem; padding-block: .6rem; }
  .blog-bar__nav { gap: .9rem; }
}

/* --- Phần đầu trang ------------------------------------------------------ */
.bhero { position: relative; }
.bhero__cover { position: relative; height: var(--b-hero-h); overflow: hidden; }
.bhero__cover img { width: 100%; height: 100%; object-fit: cover; }
/* Chưa có ảnh bìa: dựng một nền chuyển sắc theo màu nhấn của chủ trang, thay
   vì để một dải xám phẳng. */
.bhero__cover--blank {
  background:
    radial-gradient(58ch 30ch at 16% -12%, color-mix(in srgb, var(--accent) 52%, transparent), transparent 68%),
    radial-gradient(46ch 28ch at 86% 6%,  color-mix(in srgb, var(--accent) 26%, transparent), transparent 62%),
    radial-gradient(70ch 40ch at 60% 120%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%),
    linear-gradient(158deg, color-mix(in srgb, var(--accent) 9%, var(--b-surface)), var(--b-bg));
}
.bhero__inner { position: relative; display: flex; gap: clamp(1.2rem, 3vw, 2.4rem); align-items: flex-end; padding-bottom: 2.5rem; }
.bhero__portrait { flex: none; margin-top: -64px; }
.bhero__portrait .avatar { box-shadow: 0 0 0 5px var(--b-bg), var(--shadow-lg); }
.bhero__text { min-width: 0; padding-top: 1.5rem; }

.bhero__awards {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .82rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--accent); font-weight: 600; margin-bottom: .6rem;
}
.bhero__name {
  font-family: var(--b-display);
  font-size: clamp(1.9rem, 5vw, 3.1rem); font-weight: 400; letter-spacing: -.02em;
  display: flex; align-items: center; gap: .5rem; flex-wrap: wrap;
}
.bhero__tagline { margin-top: .5rem; font-size: clamp(.98rem, 1.6vw, 1.12rem); color: var(--b-ink-2); max-width: 56ch; }

.bstats { display: flex; flex-wrap: wrap; gap: 1.6rem; margin: 1.4rem 0 0; }
.bstats dt { font-size: .72rem; letter-spacing: .11em; text-transform: uppercase; color: var(--b-ink-3); }
.bstats dd { margin: .15rem 0 0; font-family: var(--b-display); font-size: 1.15rem; }

.bsocial { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.4rem; }
.bsocial a {
  display: inline-block; padding: .35rem .85rem;
  border: 1px solid var(--b-line); border-radius: var(--radius-pill);
  font-size: .84rem; text-decoration: none; color: var(--b-ink-2);
  transition: border-color .15s, color .15s, background-color .15s;
}
.bsocial a:hover { border-color: var(--accent); color: var(--accent); }

@media (max-width: 700px) {
  .bhero__inner { flex-direction: column; align-items: flex-start; padding-bottom: 2rem; }
  .bhero__portrait { margin-top: -48px; }
  .bhero__text { padding-top: .6rem; }
  .bstats { gap: 1.1rem; }
}

/* --- Khối nội dung ------------------------------------------------------- */
.bsection { padding-block: clamp(2.2rem, 6vw, 4rem); scroll-margin-top: 70px; }
.bsection__title {
  font-family: var(--b-display); font-size: clamp(1.3rem, 2.6vw, 1.75rem);
  font-weight: 400; margin-bottom: 1.4rem;
  padding-bottom: .6rem; border-bottom: 1px solid var(--b-line);
}
.bbio { font-size: 1.05rem; line-height: 1.8; color: var(--b-ink-2); white-space: pre-line; margin-bottom: 1.4rem; }
.bempty { color: var(--b-ink-3); }
.bempty a { color: var(--accent); }

/* --- Danh sách bài viết -------------------------------------------------- */
.bposts { display: grid; gap: 1.6rem; }
.bpost {
  display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 1.4rem;
  align-items: start; padding-bottom: 1.6rem; border-bottom: 1px solid var(--b-line);
}
.bpost:last-child { border-bottom: 0; }
.bpost:only-child, .bpost:not(:has(.bpost__cover)) { grid-template-columns: 1fr; }
.bpost__cover { display: block; aspect-ratio: 4 / 3; border-radius: var(--b-radius); overflow: hidden; }
.bpost__cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.bpost:hover .bpost__cover img { transform: scale(1.04); }
.bpost__meta { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; font-size: .8rem; color: var(--b-ink-3); margin-bottom: .45rem; }
.bpost__title { font-family: var(--b-display); font-size: clamp(1.2rem, 2.4vw, 1.6rem); font-weight: 500; line-height: 1.25; }
.bpost__title a { text-decoration: none; }
.bpost__title a:hover { color: var(--accent); }
.bpost__excerpt { margin-top: .5rem; color: var(--b-ink-2); font-size: .95rem; }
.bpost__body .taglist { margin-top: .8rem; }
.bpost--draft { opacity: .72; }
@media (max-width: 640px) { .bpost { grid-template-columns: 1fr; } }

/* --- Thư viện ảnh -------------------------------------------------------- */
.bgallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 190px), 1fr)); gap: .8rem; }
.bgallery__item { margin: 0; }
.bgallery__item img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: var(--b-radius); transition: transform .3s var(--ease); }
.bgallery__item:hover img { transform: scale(1.02); }
.bgallery__item figcaption { font-size: .78rem; color: var(--b-ink-3); margin-top: .35rem; }

/* --- Trang bài viết ------------------------------------------------------ */
.bentry__cover { height: clamp(200px, 38vw, 460px); overflow: hidden; margin-bottom: 2.2rem; }
.bentry__cover img { width: 100%; height: 100%; object-fit: cover; }
.bentry__head { padding-top: clamp(1.5rem, 4vw, 3rem); }
.bentry__kicker { font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); font-weight: 600; margin-bottom: .8rem; }
.bentry__kicker a { text-decoration: none; }
.bentry__title { font-family: var(--b-display); font-size: clamp(1.8rem, 4.6vw, 3rem); font-weight: 400; line-height: 1.14; letter-spacing: -.02em; }
.bentry__byline { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; margin-top: 1.2rem; font-size: .87rem; color: var(--b-ink-3); }
.bentry__author { display: flex; align-items: center; gap: .5rem; text-decoration: none; color: var(--b-ink-2); }
.bentry__author:hover { color: var(--accent); }
.bentry__dot { opacity: .5; }

.bentry__body { margin-top: 2.2rem; color: var(--b-ink-2); font-size: 1.09rem; line-height: 1.8; }
.bentry__body > * + * { margin-top: 1.2em; }
.bentry__body h2 { font-family: var(--b-display); font-size: 1.6rem; font-weight: 500; color: var(--b-ink); margin-top: 2em; }
.bentry__body h3 { font-size: 1.22rem; color: var(--b-ink); margin-top: 1.7em; }
.bentry__body a { color: var(--accent); }
.bentry__body ul, .bentry__body ol { padding-left: 1.4em; }
.bentry__body ul li { list-style: disc; margin-block: .35em; }
.bentry__body ol li { list-style: decimal; margin-block: .35em; }
.bentry__body blockquote {
  margin-inline: 0; padding: .3em 0 .3em 1.3em; border-left: 3px solid var(--accent);
  font-family: var(--b-display); font-size: 1.15em; font-style: italic; color: var(--b-ink);
}
.bentry__body img { border-radius: var(--b-radius); margin-inline: auto; }
.bentry__body hr { border: 0; border-top: 1px solid var(--b-line); margin-block: 2.5em; }
.bentry__body table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.bentry__body th, .bentry__body td { padding: .55rem .7rem; border-bottom: 1px solid var(--b-line); text-align: left; }
.bentry__body code { font-family: var(--font-mono); font-size: .87em; background: var(--b-surface); padding: .15em .4em; border-radius: 4px; }
.bentry__body pre { background: var(--b-surface); padding: 1rem 1.15rem; border-radius: var(--b-radius); overflow-x: auto; border: 1px solid var(--b-line); }
.bentry__body pre code { background: none; padding: 0; }

.bentry__foot {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  margin-top: 2.5rem; padding-top: 1.3rem; border-top: 1px solid var(--b-line);
}
.bentry__share { display: flex; align-items: center; gap: .9rem; font-size: .86rem; color: var(--b-ink-3); flex-wrap: wrap; }
.bentry__share a, .linkcopy { color: var(--b-ink-2); text-decoration: none; }
.bentry__share a:hover, .linkcopy:hover { color: var(--accent); }
.linkcopy { background: none; border: 0; cursor: pointer; padding: 0; font-size: .86rem; }

.bauthor {
  display: flex; gap: 1.2rem; align-items: flex-start;
  margin-top: 3rem; padding: 1.5rem;
  background: var(--b-surface); border: 1px solid var(--b-line); border-radius: var(--b-radius);
}
.bauthor__label { font-size: .72rem; letter-spacing: .11em; text-transform: uppercase; color: var(--b-ink-3); }
.bauthor__name { font-family: var(--b-display); font-size: 1.3rem; font-weight: 400; margin-top: .2rem; }
.bauthor__name a { text-decoration: none; }
.bauthor__tagline { font-size: .9rem; color: var(--accent); margin-top: .2rem; }
.bauthor__bio { font-size: .92rem; color: var(--b-ink-2); margin-top: .6rem; }
.bauthor__link { display: inline-block; margin-top: .8rem; font-size: .88rem; color: var(--accent); text-decoration: none; }
@media (max-width: 560px) { .bauthor { flex-direction: column; } }

.bnav { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-block: 2.5rem 4rem; }
.bnav__item {
  display: flex; flex-direction: column; gap: .3rem;
  padding: 1rem 1.2rem; border: 1px solid var(--b-line); border-radius: var(--b-radius);
  text-decoration: none; transition: border-color .2s, transform .2s var(--ease);
}
.bnav__item:hover { border-color: var(--accent); transform: translateY(-2px); }
.bnav__item span { font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; color: var(--b-ink-3); }
.bnav__item strong { font-family: var(--b-display); font-size: 1.02rem; font-weight: 500; }
.bnav__item--next { text-align: right; grid-column: 2; }
@media (max-width: 560px) {
  .bnav { grid-template-columns: 1fr; }
  .bnav__item--next { grid-column: 1; text-align: left; }
}

/* --- Chân trang blog ----------------------------------------------------- */
.blog-foot { border-top: 1px solid var(--b-line); padding-block: 2rem; margin-top: 2rem; }
.blog-foot__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.blog-foot__social { display: flex; gap: 1rem; }
.blog-foot__social a { font-size: .85rem; text-decoration: none; color: var(--b-ink-3); }
.blog-foot__social a:hover { color: var(--accent); }
.blog-foot__meta { font-size: .82rem; color: var(--b-ink-3); }
.blog-foot__meta a { color: var(--accent); text-decoration: none; }

/* Avatar chữ cái phải theo màu nhấn chủ trang đã chọn, không dùng màu hồng
   của nền tảng — nếu không, người chọn tông vàng vẫn ra một ô hồng lạc lõng. */
body.blog .avatar--letter {
  background: linear-gradient(152deg,
    color-mix(in srgb, var(--accent) 88%, #fff 12%),
    color-mix(in srgb, var(--accent) 62%, #000 38%));
  color: #fff;
  text-shadow: 0 1px 2px rgb(0 0 0 / .18);
  letter-spacing: .04em;
}

/* Trang còn trống: lời nhắc dành riêng cho chủ nhân, khách không thấy. */
.bsetup {
  display: flex; gap: 1.1rem; align-items: flex-start;
  margin-block: 1.5rem;
  padding: 1.3rem 1.5rem;
  border: 1px dashed var(--b-line);
  border-radius: var(--b-radius);
  background: color-mix(in srgb, var(--accent) 5%, transparent);
}
.bsetup__icon { font-size: 1.5rem; line-height: 1.2; flex: none; }
.bsetup__title { font-family: var(--b-display); font-size: 1.15rem; font-weight: 500; margin-bottom: .3rem; }
.bsetup__text { font-size: .93rem; color: var(--b-ink-2); max-width: 60ch; }
.bsetup__todo { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .9rem; }
.bsetup__todo a {
  display: inline-block; padding: .35rem .85rem;
  border: 1px solid var(--b-line); border-radius: var(--radius-pill);
  background: var(--b-bg);
  font-size: .85rem; text-decoration: none; color: var(--b-ink-2);
}
.bsetup__todo a:hover { border-color: var(--accent); color: var(--accent); }
@media (max-width: 560px) { .bsetup { flex-direction: column; gap: .6rem; } }

/* Thẻ phân loại trong blog kế thừa màu của theme */
body.blog .taglist li > * { background: var(--b-surface); color: var(--b-ink-2); border: 1px solid var(--b-line); }
body.blog .taglist li > a:hover { border-color: var(--accent); color: var(--accent); background: var(--b-surface); }
body.blog .pagination__step { background: var(--b-surface); border-color: var(--b-line); }
body.blog .badge--draft { background: var(--b-surface); border-color: var(--b-line); color: var(--b-ink-3); }