/* HẢI VŨ PIANO ACADEMY — NHÀ SOẠN NHẠC & TÁC GIẢ V23
   Quy tắc:
   - Không quảng bá số lượng bài.
   - Nội dung xuất hiện sớm, đặc biệt laptop 14".
   - Chỉ hiện một phần tại một thời điểm.
   - Typography bài đọc giữ lớn, dễ đọc.
*/

body.hv23-author-page{
  --hv23-ink:#18384f;
  --hv23-muted:#647681;
  --hv23-line:rgba(24,56,79,.12);
  --hv23-gold:#9a7040;
  --hv23-soft:#fbfaf7;
}

body.hv23-author-page .header{
  min-height:68px!important;
}
body.hv23-author-page .header > .wrap,
body.hv23-author-page .header .wrap{
  padding-top:7px!important;
  padding-bottom:7px!important;
}
body.hv23-author-page .header .brand img{
  max-height:46px!important;
  width:auto!important;
}

.hv23-main{color:var(--hv23-ink);background:#fff}
.hv23-wrap{width:min(1220px,calc(100% - 48px));margin-inline:auto}

/* Compact academic hero: no count card. */
.hv23-hero{
  padding:30px 0 24px;
  background:linear-gradient(90deg,#fbfaf6 0%,#f7fafb 100%);
  border-bottom:1px solid rgba(24,56,79,.07);
}
.hv23-eyebrow{
  display:block;margin-bottom:9px;color:var(--hv23-gold);
  font-size:12px;font-weight:650;letter-spacing:.055em
}
.hv23-hero h1{
  margin:0 0 12px;
  max-width:880px;
  font-size:clamp(41px,3.7vw,49px);
  line-height:1.07;
  letter-spacing:-.034em;
  font-weight:610
}
.hv23-hero p{
  max-width:1000px;
  margin:0;
  color:var(--hv23-muted);
  font-size:16.5px;
  line-height:1.67
}

/* Control strip connects directly to visible content. */
.hv23-controls{
  border-bottom:1px solid rgba(24,56,79,.08);
  background:#fff
}
.hv23-controls-inner{
  width:min(1220px,calc(100% - 48px));
  margin-inline:auto;
  padding:13px 0 11px
}
.hv23-control-top{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(330px,410px);
  gap:15px;
  align-items:end
}
.hv23-field label{
  display:block;margin-bottom:5px;color:#758690;
  font-size:11px;font-weight:650;letter-spacing:.055em
}
.hv23-search,.hv23-select{
  width:100%;min-height:44px;padding:0 13px;
  border:1px solid rgba(24,56,79,.16);
  border-radius:9px;background:#fff;color:var(--hv23-ink);
  font:inherit;font-size:15px;outline:none
}
.hv23-search:focus,.hv23-select:focus{
  border-color:rgba(18,63,91,.42);
  box-shadow:0 0 0 3px rgba(18,63,91,.05)
}
.hv23-partbar{
  display:flex;justify-content:space-between;align-items:center;
  gap:18px;margin-top:9px;padding-top:9px;
  border-top:1px solid rgba(24,56,79,.08)
}
.hv23-current{min-width:0}
.hv23-current small{
  display:block;margin-bottom:2px;color:var(--hv23-gold);
  font-size:11px;font-weight:650;letter-spacing:.05em
}
.hv23-current strong{
  display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  font-size:15px;font-weight:600
}
.hv23-actions{display:flex;gap:8px;flex:0 0 auto}
.hv23-btn{
  min-height:36px;padding:0 12px;border:1px solid rgba(24,56,79,.15);
  border-radius:999px;background:#fff;color:var(--hv23-ink);
  font:inherit;font-size:12px;font-weight:600;cursor:pointer
}
.hv23-btn:disabled{opacity:.38;cursor:not-allowed}

/* Main list begins immediately. */
.hv23-index{padding:14px 0 78px}
.hv23-part{
  display:grid;
  grid-template-columns:310px minmax(0,1fr);
  gap:58px;
  align-items:start
}
.hv23-part[hidden]{display:none!important}
.hv23-part.hv23-active{display:grid!important}
.hv23-part-meta{padding-top:0}
.hv23-part-no{
  display:block;margin-bottom:7px;color:var(--hv23-gold);
  font-size:12px;font-weight:650;letter-spacing:.05em
}
.hv23-part h2{
  margin:0 0 10px;
  font-size:30px;line-height:1.2;letter-spacing:-.022em;font-weight:610
}
.hv23-part-intro{
  margin:0;color:#536b7a;font-size:16px;line-height:1.72
}
.hv23-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  column-gap:34px
}
.hv23-item{border-bottom:1px solid rgba(24,56,79,.1)}
.hv23-item a{
  display:grid;
  grid-template-columns:42px 1fr 18px;
  gap:11px;align-items:center;
  min-height:72px;padding:10px 0;
  color:var(--hv23-ink);text-decoration:none
}
.hv23-item a:hover .hv23-item-title{color:#0d547e}
.hv23-num{
  color:var(--hv23-gold);font-size:13px;font-weight:650;
  font-variant-numeric:tabular-nums
}
.hv23-item-title{font-size:16.8px;line-height:1.44;font-weight:560}
.hv23-arrow{color:#8da0aa}
.hv23-empty{
  display:none;padding:28px 0;color:var(--hv23-muted);
  font-size:16px;line-height:1.65
}

/* Article */
.hv23-article-hero{
  padding:18px 0 15px;
  background:#fbfaf7;
  border-bottom:1px solid rgba(24,56,79,.08)
}
.hv23-breadcrumb{
  display:flex;gap:8px;flex-wrap:wrap;
  margin-bottom:11px;color:#788993;font-size:12px
}
.hv23-breadcrumb a{color:inherit;text-decoration:none}
.hv23-article-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:58px;align-items:end
}
.hv23-article-no{
  display:block;margin-bottom:7px;color:var(--hv23-gold);
  font-size:12px;font-weight:650;letter-spacing:.05em
}
.hv23-article-hero h1{
  max-width:900px;margin:0;
  font-size:clamp(37px,3.25vw,45px);
  line-height:1.075;letter-spacing:-.032em;font-weight:610
}
.hv23-context{
  padding-left:20px;border-left:1px solid var(--hv23-line);
  color:var(--hv23-muted);font-size:13.5px;line-height:1.62
}
.hv23-context strong{
  display:block;margin-bottom:6px;color:var(--hv23-ink);
  font-size:14px;font-weight:620
}
.hv23-meta{
  margin-top:10px;color:#6c7e89;font-size:13px;line-height:1.55
}

.hv23-article-layout{
  display:grid;
  grid-template-columns:minmax(0,790px) 300px;
  gap:68px;justify-content:space-between;
  padding:18px 0 88px
}
.hv23-copy::before{
  content:"";display:block;width:52px;height:1px;
  margin-bottom:19px;background:#b89161
}
.hv23-copy p{
  margin:0 0 25px;
  color:#2f4a5b;
  font-size:18.5px;
  line-height:1.82
}
.hv23-works{
  margin:30px 0 0;
  padding:18px 20px;
  border-left:2px solid #b89161;
  background:#fbfaf7;
  color:#405968;
  font-size:15px;
  line-height:1.68
}
.hv23-works strong{
  display:block;
  margin-bottom:5px;
  color:var(--hv23-ink);
  font-size:12px;
  letter-spacing:.04em
}
.hv23-aside{align-self:start;position:sticky;top:92px}
.hv23-aside-title{
  margin-bottom:12px;color:var(--hv23-gold);
  font-size:11px;font-weight:650;letter-spacing:.06em
}
.hv23-aside a{
  display:grid;grid-template-columns:28px 1fr;gap:9px;
  padding:9px 0;border-bottom:1px solid rgba(24,56,79,.08);
  color:#6e7e87;text-decoration:none;font-size:13px;line-height:1.43
}
.hv23-aside a.current{color:var(--hv23-ink);font-weight:620}
.hv23-aside a span:first-child{
  color:#a17a4c;font-variant-numeric:tabular-nums
}
.hv23-prevnext{
  display:grid;grid-template-columns:1fr 1fr;gap:18px;
  margin-top:42px;padding-top:20px;border-top:1px solid var(--hv23-line)
}
.hv23-prevnext a{padding:12px 0;color:var(--hv23-ink);text-decoration:none}
.hv23-prevnext a:last-child{text-align:right}
.hv23-prevnext small{
  display:block;margin-bottom:5px;color:#83929b;font-size:11px
}
.hv23-prevnext strong{font-size:15px;line-height:1.48;font-weight:600}

/* Short laptop viewport */
@media (min-width:980px) and (max-height:920px){
  .hv23-hero{padding-top:24px;padding-bottom:19px}
  .hv23-controls-inner{padding-top:10px;padding-bottom:9px}
  .hv23-index{padding-top:10px}
  .hv23-article-hero{padding-top:14px;padding-bottom:12px}
  .hv23-article-layout{padding-top:14px}
}

@media(max-width:960px){
  .hv23-control-top{grid-template-columns:1fr}
  .hv23-part.hv23-active{display:block!important}
  .hv23-part-meta{margin-bottom:22px}
  .hv23-article-grid{grid-template-columns:1fr;gap:22px}
  .hv23-context{
    padding-left:0;padding-top:16px;border-left:0;border-top:1px solid var(--hv23-line)
  }
  .hv23-article-layout{grid-template-columns:1fr;gap:46px}
  .hv23-aside{position:static}
}

@media(max-width:720px){
  .hv23-wrap,.hv23-controls-inner{width:min(100% - 32px,1220px)}
  .hv23-hero{padding:40px 0 32px}
  .hv23-hero h1,.hv23-article-hero h1{font-size:clamp(36px,10vw,42px)}
  .hv23-partbar{align-items:flex-start;flex-direction:column}
  .hv23-current strong{white-space:normal}
  .hv23-index{padding:26px 0 68px}
  .hv23-part h2{font-size:28px}
  .hv23-list{grid-template-columns:1fr}
  .hv23-item-title{font-size:16.5px}
  .hv23-article-hero{padding:34px 0 27px}
  .hv23-article-layout{padding:38px 0 68px}
  .hv23-copy p{font-size:17.5px;line-height:1.78}
  .hv23-prevnext{grid-template-columns:1fr}
  .hv23-prevnext a:last-child{text-align:left}
}