/* =========================================================
   SEAPHONY — CSS cho các trang nội dung (tin tức, bài viết,
   tìm kiếm, lỗi, đăng nhập). Kế thừa biến từ site.css.
   ========================================================= */

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--gold);color:var(--ink);padding:.7rem 1.2rem;font-weight:500;
}
.skip-link:focus{left:0}

.page-main{padding-top:76px}

/* ---------- Hero phụ ---------- */
.page-hero{
  padding:clamp(3.5rem,8vw,6.5rem) 0 clamp(2rem,4vw,3rem);
  border-bottom:1px solid var(--line-soft);
  background:
    radial-gradient(120% 100% at 50% 0%, rgba(201,163,92,.10), transparent 60%),
    var(--ink);
}
.page-hero h1{
  font-size:clamp(2rem,4.6vw,3.4rem);font-weight:300;letter-spacing:-.01em;
  color:var(--cream);margin:0;max-width:20ch;
}
.page-hero .lede{
  color:var(--muted);max-width:62ch;margin-top:1.1rem;font-size:1.02rem;
}
.errpage h1{max-width:26ch}
.err-detail{
  margin-top:2rem;padding:1rem;border:1px solid var(--line);border-radius:4px;
  background:var(--ink-2);color:var(--muted);font-size:.78rem;overflow:auto;max-height:340px;
}

/* ---------- Breadcrumb ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;
  font-size:.76rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
}
.crumbs a{color:var(--gold);transition:opacity .3s}
.crumbs a:hover{opacity:.7}
.crumbs span[aria-current]{color:var(--muted);text-transform:none;letter-spacing:.02em}

/* ---------- Ô tìm kiếm ---------- */
.page-search{display:flex;gap:.6rem;margin-top:1.8rem;max-width:520px}
.page-search.big{max-width:640px}
.page-search input{
  flex:1;background:var(--ink-2);border:1px solid var(--line);color:var(--cream);
  padding:.85rem 1.1rem;border-radius:2px;font-family:inherit;font-size:.95rem;
}
.page-search input:focus{outline:none;border-color:var(--gold)}
.drawer-search{margin-top:2rem;width:100%;max-width:280px}
.drawer-search input{
  width:100%;background:transparent;border:1px solid var(--line);color:var(--cream);
  padding:.7rem .9rem;border-radius:2px;font-family:inherit;
}

/* ---------- Bố cục 2 cột ---------- */
.blog-layout,.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:clamp(2rem,5vw,4rem);align-items:start;
}
@media(max-width:900px){
  .blog-layout,.article-layout{grid-template-columns:1fr}
}

/* ---------- Lưới thẻ bài viết ---------- */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:clamp(1.4rem,3vw,2.2rem)}
.card{border:1px solid var(--line-soft);background:var(--ink-2);border-radius:3px;overflow:hidden;transition:border-color .4s var(--ease),transform .4s var(--ease)}
.card:hover{border-color:var(--line);transform:translateY(-3px)}
.card-thumb{display:block;position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--ink-3)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.card:hover .card-thumb img{transform:scale(1.05)}
.card-thumb .badge{
  position:absolute;top:.8rem;left:.8rem;background:var(--gold);color:var(--ink);
  font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;padding:.3rem .6rem;font-weight:600;
}
.card-body{padding:1.3rem 1.4rem 1.6rem}
.card-meta{
  display:flex;flex-wrap:wrap;gap:.45rem;align-items:center;
  font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
}
.card-meta a{color:var(--gold)}
.card-body h2,.card-body h3{font-size:1.22rem;line-height:1.25;margin:.75rem 0 .6rem}
.card-body h2 a:hover,.card-body h3 a:hover{color:var(--gold-hi)}
.card-body p{color:var(--muted);font-size:.92rem;margin:0}
.card-body .more{display:inline-block;margin-top:1rem;color:var(--gold);font-size:.84rem;letter-spacing:.06em}

/* ---------- Cột bên ---------- */
.side{display:flex;flex-direction:column;gap:1.6rem;position:sticky;top:100px}
@media(max-width:900px){.side{position:static}}
.side-box{border:1px solid var(--line-soft);background:var(--ink-2);padding:1.4rem 1.5rem;border-radius:3px}
.side-box h3{
  font-family:"Be Vietnam Pro",sans-serif;font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;
  color:var(--gold);margin:0 0 1rem;font-weight:500;
}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.1rem}
.side-list a{
  display:flex;justify-content:space-between;gap:1rem;padding:.55rem 0;
  border-bottom:1px solid var(--line-soft);color:var(--cream);font-size:.92rem;transition:color .3s;
}
.side-list a:hover,.side-list a.on{color:var(--gold)}
.side-list span{color:var(--muted);font-size:.78rem}
.tag-cloud{display:flex;flex-wrap:wrap;gap:.45rem}
.tag-cloud a{
  border:1px solid var(--line);padding:.32rem .7rem;font-size:.78rem;color:var(--muted);
  border-radius:999px;transition:color .3s,border-color .3s;
}
.tag-cloud a:hover,.tag-cloud a.on{color:var(--gold);border-color:var(--gold)}
.side-cta{background:linear-gradient(160deg,rgba(201,163,92,.10),transparent);border-color:var(--line)}
.side-cta p{color:var(--muted);font-size:.9rem;margin:0 0 1.1rem}
.author-box b{display:block;margin-bottom:.4rem}
.author-box p{color:var(--muted);font-size:.88rem;margin:0}
.toc ul{list-style:none;margin:0;padding:0}
.toc li{margin:.1rem 0}
.toc li.lv3{padding-left:1rem}
.toc a{display:block;padding:.35rem 0;color:var(--muted);font-size:.88rem;border-left:1px solid transparent;padding-left:.7rem;transition:color .3s,border-color .3s}
.toc a:hover{color:var(--gold);border-left-color:var(--gold)}

/* ---------- Phân trang ---------- */
.pager{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:3rem;align-items:center}
.pager a{
  min-width:42px;text-align:center;padding:.6rem .8rem;border:1px solid var(--line-soft);
  color:var(--muted);font-size:.88rem;transition:color .3s,border-color .3s;
}
.pager a:hover{color:var(--gold);border-color:var(--line)}
.pager a.on{color:var(--ink);background:var(--gold);border-color:var(--gold);font-weight:500}
.pager .gap{color:var(--muted);padding:0 .3rem}
.pager-info{color:var(--muted);font-size:.8rem;margin-top:.9rem}

/* ---------- Bài viết chi tiết ---------- */
.preview-bar{
  background:var(--gold);color:var(--ink);text-align:center;padding:.7rem 1rem;
  font-size:.86rem;position:sticky;top:76px;z-index:40;
}

/* Hero ảnh bìa: ảnh nền + phủ tối gradient + chữ đè đọc rõ */
.article-hero{
  position:relative;overflow:hidden;isolation:isolate;
  min-height:clamp(400px,58vh,600px);display:flex;align-items:flex-end;
  margin-bottom:clamp(2rem,5vw,3.4rem);
}
.article-hero-media{position:absolute;inset:0;z-index:-1}
.article-hero-media img{width:100%;height:100%;object-fit:cover;object-position:center 42%}
.article-hero-media .veil{
  position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(180deg, rgba(20,16,10,.30) 0%, rgba(20,16,10,.05) 30%, rgba(20,16,10,.72) 78%, rgba(20,16,10,.95) 100%),
    radial-gradient(120% 80% at 10% 100%, rgba(20,16,10,.5), transparent 60%);
}
.article-hero-inner{
  position:relative;z-index:1;width:100%;
  padding-top:clamp(4rem,10vw,6rem);padding-bottom:clamp(1.8rem,4vw,3rem);
}
.article-hero .crumbs a{color:var(--gold-hi)}
.article-hero .crumbs span[aria-current]{color:#d8cdb5}
.article-hero h1{
  font-size:clamp(2.1rem,5vw,3.6rem);margin:1rem 0 0;max-width:24ch;color:var(--cream);
  text-shadow:0 2px 34px rgba(0,0,0,.55);
}
.article-hero .lede{color:#e7ddc9;max-width:60ch;margin-top:1.1rem;font-size:clamp(1rem,1.4vw,1.16rem);
  text-shadow:0 1px 20px rgba(0,0,0,.5)}
.article-hero .article-meta{color:#e2d7c1;border-top-color:rgba(236,226,205,.24)}
.article-hero .article-meta b{color:#fff}
@media(max-width:640px){ .article-hero{min-height:auto} }

.article-head{padding:clamp(3rem,7vw,5rem) 0 clamp(1.5rem,3vw,2.4rem)}
.article-head h1{font-size:clamp(2.1rem,5vw,3.5rem);margin:.9rem 0 0;max-width:24ch}
.article-head .lede{color:var(--muted);max-width:66ch;margin-top:1.1rem;font-size:1.06rem}
.article-meta{
  display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;margin-top:1.6rem;
  font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);
  padding-top:1.4rem;border-top:1px solid var(--line-soft);
}
.article-meta b{color:var(--cream);font-weight:500}
.article-cover{margin:0 auto clamp(2rem,4vw,3rem)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:3px}
.article-cover figcaption{color:var(--muted);font-size:.8rem;margin-top:.7rem;text-align:center}

.article-body{max-width:72ch;font-size:1.04rem;line-height:1.85}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.5rem;color:#ded3bd}
.article-body h2{
  font-size:clamp(1.5rem,3vw,2.05rem);margin:3rem 0 1.1rem;scroll-margin-top:110px;
}
.article-body h3{font-size:clamp(1.2rem,2.4vw,1.5rem);margin:2.3rem 0 .9rem;scroll-margin-top:110px}
.article-body h4{font-family:"Be Vietnam Pro",sans-serif;font-size:1.02rem;font-weight:600;margin:1.8rem 0 .7rem}
.article-body a{color:var(--gold);border-bottom:1px solid var(--line);transition:border-color .3s}
.article-body a:hover{border-bottom-color:var(--gold)}
.article-body ul,.article-body ol{margin:0 0 1.6rem;padding-left:1.3rem;color:#ded3bd}
.article-body li{margin:.5rem 0}
.article-body li::marker{color:var(--gold)}
.article-body img{border-radius:3px;margin:2rem 0}
.article-body figure{margin:2rem 0}
.article-body figcaption{color:var(--muted);font-size:.84rem;text-align:center;margin-top:.6rem}
.article-body blockquote{
  margin:2rem 0;padding:1.2rem 0 1.2rem 1.6rem;border-left:2px solid var(--gold);
  color:var(--cream);font-family:"Fraunces",Georgia,serif;font-size:1.16rem;line-height:1.55;font-style:italic;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body code{
  background:var(--ink-3);border:1px solid var(--line-soft);padding:.12em .4em;
  border-radius:3px;font-size:.88em;color:var(--gold-hi);
}
.article-body pre{background:var(--ink-2);border:1px solid var(--line-soft);padding:1.2rem;border-radius:3px;overflow-x:auto;margin:0 0 1.6rem}
.article-body pre code{background:none;border:none;padding:0;color:var(--cream)}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 1.6rem;font-size:.94rem}
.article-body th,.article-body td{border:1px solid var(--line-soft);padding:.7rem .9rem;text-align:left}
.article-body th{background:var(--ink-2);color:var(--gold);font-weight:500}
.article-body hr{border:none;border-top:1px solid var(--line-soft);margin:2.6rem 0}

.article-tags{display:flex;flex-wrap:wrap;gap:.5rem;margin:2.6rem 0 0;padding-top:2rem;border-top:1px solid var(--line-soft)}
.article-tags a{border:1px solid var(--line);padding:.32rem .8rem;border-radius:999px;font-size:.8rem;color:var(--muted);transition:color .3s,border-color .3s}
.article-tags a:hover{color:var(--gold);border-color:var(--gold)}

.share{display:flex;flex-wrap:wrap;gap:.8rem;align-items:center;margin-top:1.8rem;font-size:.84rem;color:var(--muted)}
.share a,.share button{
  color:var(--gold);border:1px solid var(--line);background:none;padding:.4rem .9rem;border-radius:2px;
  font-family:inherit;font-size:.82rem;cursor:pointer;transition:border-color .3s;
}
.share a:hover,.share button:hover{border-color:var(--gold)}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:3rem}
@media(max-width:640px){.post-nav{grid-template-columns:1fr}}
.post-nav a{border:1px solid var(--line-soft);padding:1.1rem 1.3rem;transition:border-color .3s}
.post-nav a:hover{border-color:var(--line)}
.post-nav .next{text-align:right}
.post-nav span{display:block;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin-bottom:.5rem}
.post-nav b{font-weight:400;font-family:"Fraunces",Georgia,serif;font-size:1.05rem;line-height:1.3}

.related{border-top:1px solid var(--line-soft);margin-top:clamp(3rem,6vw,5rem)}

/* Bản tin chân trang — style dùng chung nằm ở site.css */

/* ---------- Đăng nhập ---------- */
.login-wrap{
  min-height:100vh;display:grid;place-items:center;padding:2rem 1.2rem;
  background:radial-gradient(120% 90% at 50% 0%,rgba(201,163,92,.12),transparent 60%),var(--ink);
}
.login-card{
  width:100%;max-width:420px;background:var(--ink-2);border:1px solid var(--line);
  padding:clamp(2rem,5vw,2.8rem);border-radius:4px;
}
.login-card .brand{display:inline-flex;align-items:baseline;gap:.6rem;margin-bottom:2rem}
.login-card .brand b{font-family:"Fraunces",serif;font-size:1.2rem;letter-spacing:.24em;font-weight:500}
.login-card .brand span{font-size:.7rem;letter-spacing:.28em;text-transform:uppercase;color:var(--muted)}
.login-card h1{font-size:1.7rem;margin-bottom:.6rem}
.login-card .hint{color:var(--muted);font-size:.88rem;margin:0 0 1.8rem}
.login-card label{display:block;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin:1.2rem 0 .5rem}
.login-card input{
  width:100%;background:var(--ink);border:1px solid var(--line);color:var(--cream);
  padding:.8rem 1rem;border-radius:2px;font-family:inherit;font-size:.95rem;
}
.login-card input:focus{outline:none;border-color:var(--gold)}
.pw-field{position:relative}
.pw-toggle{
  position:absolute;right:.6rem;top:50%;transform:translateY(-50%);background:none;border:none;
  color:var(--gold);font-family:inherit;font-size:.78rem;cursor:pointer;padding:.3rem .5rem;
}
.login-back{margin-top:1.6rem;text-align:center;font-size:.86rem}
.login-back a{color:var(--muted)}
.login-back a:hover{color:var(--gold)}
.alert{padding:.85rem 1.1rem;border-radius:2px;font-size:.88rem;margin-bottom:1rem}
.alert.error{background:rgba(201,117,106,.12);border:1px solid rgba(201,117,106,.4);color:#e0a49b}
.alert.success{background:rgba(125,154,106,.12);border:1px solid rgba(125,154,106,.4);color:#a9c294}
.alert.warn{background:rgba(201,163,92,.12);border:1px solid var(--line);color:var(--gold-hi)}

/* ---------- Responsive điện thoại nhỏ (trang nội dung) ---------- */
@media(max-width:520px){
  .card-grid{grid-template-columns:1fr}
  .page-hero{padding:clamp(2.4rem,9vw,3.5rem) 0 1.6rem}
  .article-head{padding:2.4rem 0 1.4rem}
  .share{gap:.5rem}
  .post-nav{grid-template-columns:1fr}
  .pager{justify-content:center}
}
/* Nội dung bài viết không tràn ngang */
.article-body img,.article-body table{max-width:100%}
.article-body pre{overflow-x:auto}
.article-body a{word-break:break-word}