/* ===== TOKENS =====
   Mặc định là NỀN TỐI, không phụ thuộc cài đặt sáng/tối của máy người xem.
   Người xem bấm nút ở thanh menu để chuyển sang nền sáng; lựa chọn được nhớ lại. */
:root{
  color-scheme:dark;
  --ground:#0A0E18; --surface:#111726; --raised:#19212F;
  --line:rgba(210,172,99,.22); --line-soft:rgba(210,172,99,.11);
  --gold:#D2AC63; --gold-hi:#F0DCAC; --gold-deep:#8A6420; --rose:#DE7A66; --petal:#D2AC63;
  --text:#EDE8DE; --muted:#9BA3B2;
  --e-moc:#7FAE86; --e-hoa:#DE7A66; --e-tho:#E0B159; --e-kim:#CFD6DE; --e-thuy:#7C97C9;
  --halo:rgba(210,172,99,.14);
  --shadow:0 26px 64px -32px rgba(0,0,0,.9);
  --maxw:1140px;
  --logo:url(logo-mark.webp);
  --bg1:#F2DFB2; --bg2:#D2AC63; --bg3:#9C7731; --btn-ink:#14100A;
  /* chữ MSOUND HEALING — vàng ánh kim. Nền tối: đẩy sáng lên cho nổi,
     bỏ đoạn quá tối vì chính đoạn đó làm chữ trông mờ. */
  --wm1:#FCEFCB; --wm2:#E6C27C; --wm3:#C29A4E;
}
:root[data-theme="light"]{
  color-scheme:light;
  --ground:#F5F3EF; --surface:#FFFFFF; --raised:#ECE9E2;
  --line:rgba(40,55,85,.20); --line-soft:rgba(40,55,85,.10);
  --gold:#8A6828; --gold-hi:#6B4F1C; --gold-deep:#4B360C; --rose:#A8452F; --petal:#8A6828;
  --text:#161C28; --muted:#5A6272;
  --e-moc:#3E6B4A; --e-hoa:#A8452F; --e-tho:#8A6828; --e-kim:#55606E; --e-thuy:#2F4A7A;
  --halo:rgba(138,104,40,.10);
  --shadow:0 20px 44px -30px rgba(60,40,20,.45);
  /* nền trắng cần vàng đậm hơn hẳn, nếu không chữ bị chìm */
  --wm1:#B98A32; --wm2:#8A6428; --wm3:#6A4A17;
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --ground:#0A0E18; --surface:#111726; --raised:#19212F;
  --line:rgba(210,172,99,.22); --line-soft:rgba(210,172,99,.11);
  --gold:#D2AC63; --gold-hi:#F0DCAC; --gold-deep:#8A6420; --rose:#DE7A66; --petal:#D2AC63;
  --text:#EDE8DE; --muted:#9BA3B2;
  --e-moc:#7FAE86; --e-hoa:#DE7A66; --e-tho:#E0B159; --e-kim:#CFD6DE; --e-thuy:#7C97C9;
  --halo:rgba(210,172,99,.14);
  --shadow:0 26px 64px -32px rgba(0,0,0,.9);
  --wm1:#FCEFCB; --wm2:#E6C27C; --wm3:#C29A4E;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
section{scroll-margin-top:96px}
body{background:var(--ground);color:var(--text);font-family:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-weight:400;font-size:16px;line-height:1.72;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:"Cormorant Garamond",Georgia,serif;font-weight:400;margin:0;line-height:1.14;text-wrap:balance}
p{margin:0}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.rule{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);border:0;margin:0}
section{padding:88px 0}
section.alt{background:var(--surface);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.eyebrow{display:flex;align-items:baseline;gap:12px;font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold)}
.eyebrow a{color:inherit;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.eyebrow a:hover{opacity:.8}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold);opacity:.6;transform:translateY(-4px)}
.sec-head{display:flex;flex-direction:column;gap:16px;max-width:62ch;margin-bottom:44px}
.sec-head h2{font-size:clamp(30px,4.4vw,46px)}
.sec-head p{color:var(--muted);font-size:16.5px}
.sec-head p strong{font-weight:500;color:var(--text)}
.note{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.06em;color:var(--muted);border-left:2px solid var(--e-hoa);padding-left:10px;opacity:.85}

/* ===== HEADER ===== */
header.top{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--ground) 90%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line-soft)}
.topbar{display:flex;align-items:center;gap:22px;height:86px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;margin-right:auto}
.logo-img{background:var(--logo) center/contain no-repeat;display:block;flex:none}
.brand .logo-img{height:66px;width:74px}
/* tắt làm mịn kiểu mảnh của macOS — tô gradient lên chữ vốn đã làm nét mỏng đi */
.wmark{display:inline-flex;flex-direction:column;align-items:stretch;line-height:1;
  -webkit-font-smoothing:auto;-moz-osx-font-smoothing:auto}
.wmark b{font-family:"Cinzel",Georgia,serif;font-weight:700;font-size:24px;
  letter-spacing:.14em;color:var(--wm2)}
@supports ((-webkit-background-clip:text) or (background-clip:text)){
  .wmark b{background:linear-gradient(172deg,var(--wm1) 2%,var(--wm2) 34%,
    var(--wm3) 66%,var(--wm1) 100%);
    -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
}
/* HEALING trải đúng bề ngang của MSOUND, cỡ chữ bằng 57% — như bản logo gốc */
.wmark .sub{display:flex;justify-content:space-between;margin-top:8px}
.wmark .sub i{font-style:normal;font-family:"Cinzel",Georgia,serif;font-weight:600;
  font-size:13px;color:var(--wm2);line-height:1}
@supports ((-webkit-background-clip:text) or (background-clip:text)){
  .wmark .sub i{background:linear-gradient(172deg,var(--wm1) 2%,var(--wm2) 40%,var(--wm3) 100%);
    -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
}

nav.main{display:flex;gap:17px;align-items:center}
nav.main a{text-decoration:none;font-size:13px;color:var(--muted);padding:4px 0;
  border-bottom:1px solid transparent;transition:color .2s,border-color .2s;white-space:nowrap}
nav.main a:hover{color:var(--text);border-color:var(--gold)}
.has-sub{position:relative;padding-bottom:16px;margin-bottom:-16px}
.has-sub>.parent{display:inline-flex;align-items:center;gap:6px}
.has-sub>.parent svg{width:8px;height:5px;flex:none;transition:transform .2s}
.has-sub:hover>.parent svg{transform:rotate(180deg)}
.has-sub .sub{position:absolute;left:-16px;top:100%;min-width:214px;z-index:60;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);
  display:flex;flex-direction:column;padding:8px 0;
  opacity:0;visibility:hidden;transform:translateY(-7px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s}
.has-sub:hover .sub,.has-sub:focus-within .sub{opacity:1;visibility:visible;transform:none}
.has-sub .sub a{padding:9px 18px;border:0;font-size:13.5px}
.has-sub .sub a:hover{color:var(--gold);background:var(--raised)}
.theme-btn{background:none;border:1px solid var(--line);color:var(--muted);width:34px;height:34px;border-radius:50%;cursor:pointer;font-size:13px;display:grid;place-items:center;transition:border-color .2s,color .2s;flex:none}
.theme-btn:hover{border-color:var(--gold);color:var(--gold)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);color:var(--muted);
  width:36px;height:34px;cursor:pointer;place-items:center;flex:none}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold)}
.nav-toggle svg{width:15px;height:11px}
@media(max-width:1120px){
  .nav-toggle{display:grid}
  nav.main{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;
    align-items:stretch;gap:0;padding:6px 0 12px;background:var(--ground);
    border-bottom:1px solid var(--line);box-shadow:var(--shadow);max-height:76vh;overflow-y:auto}
  nav.main.open{display:flex}
  nav.main>a,.has-sub>.parent{padding:13px 28px;border-bottom:1px solid var(--line-soft)}
  .has-sub{position:static;padding-bottom:0;margin-bottom:0;width:100%}
  .has-sub .sub,.has-sub>.parent{width:100%}
  .has-sub>.parent{justify-content:space-between}
  .has-sub>.parent svg{display:none}
  .has-sub .sub{position:static;opacity:1;visibility:visible;transform:none;
    border:0;box-shadow:none;background:var(--surface);padding:0}
  .has-sub .sub a{padding:11px 28px 11px 46px;border-bottom:1px solid var(--line-soft)}
}

/* ===== HERO ===== */
.hero{padding:64px 0 76px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center}
.hero h1{font-size:clamp(38px,6.2vw,70px);line-height:1.04;letter-spacing:-.01em}
.hero h1 em{font-style:italic;color:var(--gold)}
.nb{white-space:nowrap}
.tagline{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--e-kim);margin-top:20px}
.hero-lede{color:var(--muted);font-size:18px;max-width:46ch;margin-top:20px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 30px;text-decoration:none;
  font-size:13.5px;font-weight:500;letter-spacing:.045em;line-height:1;white-space:nowrap;
  border:1px solid var(--gold);color:var(--gold);
  background-image:linear-gradient(158deg,var(--bg1) 0%,var(--bg2) 44%,var(--bg3) 112%);
  background-repeat:no-repeat;background-position:left center;background-size:0% 100%;
  transition:background-size .45s cubic-bezier(.33,0,.18,1),color .3s ease,
             transform .3s ease,box-shadow .3s ease,border-color .3s ease}
.btn:hover{background-size:100% 100%;color:var(--btn-ink);transform:translateY(-1px);
  box-shadow:0 10px 24px -16px var(--gold)}
.btn:active{transform:translateY(0)}
/* nút chính: vàng đổ sắc như mặt kim loại, có vệt sáng mảnh ở mép trên */
.btn.solid{color:var(--btn-ink);border-color:transparent;background-size:100% 100%;
  background-image:linear-gradient(158deg,var(--bg1) 0%,var(--bg2) 44%,var(--bg3) 112%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 10px 26px -18px var(--bg3)}
.btn.solid:hover{color:var(--btn-ink);transform:translateY(-1px);
  background-image:linear-gradient(158deg,#FBEBC6 0%,var(--bg1) 56%,var(--bg2) 114%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.6),0 14px 30px -16px var(--gold)}
.btn.ghost{border-color:var(--line);color:var(--muted);
  background-image:linear-gradient(var(--text),var(--text))}
.btn.ghost:hover{color:var(--ground);border-color:var(--text);box-shadow:none}
.hero-photo{position:relative;border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden}
.hero-photo img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9}
.hero-photo::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(58% 46% at 66% 33%,transparent 30%,rgba(10,14,24,.36) 100%),
             linear-gradient(to top,rgba(10,14,24,.46),transparent 42%)}
.hero-photo canvas{position:absolute;inset:0;width:100%;height:100%;mix-blend-mode:screen;pointer-events:none;z-index:2}
.hero-photo{cursor:pointer}
.hero-photo .cue{position:absolute;right:14px;bottom:14px;z-index:3;display:inline-flex;align-items:center;gap:8px;
  padding:8px 13px;border:1px solid rgba(246,228,180,.5);background:rgba(12,10,6,.46);
  backdrop-filter:blur(4px);color:#F6E4B4;
  font-family:"IBM Plex Mono",monospace;font-size:9.5px;letter-spacing:.18em;text-transform:uppercase;
  transition:background .25s,border-color .25s,opacity .3s;pointer-events:none}
.hero-photo:hover .cue{background:rgba(12,10,6,.62);border-color:rgba(246,228,180,.85)}
.hero-photo .cue svg{width:13px;height:13px;flex:none}
.hero-photo.ringing .cue{opacity:.55}
@media(max-width:560px){.hero-photo .cue{right:10px;bottom:10px;padding:7px 10px;font-size:8.5px;letter-spacing:.12em}}
.waveband{position:relative;overflow:hidden;background:var(--surface);
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.waveband::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 120% at 50% 50%,var(--halo),transparent 70%)}
.waveband canvas{position:relative;display:block;width:100%;min-width:0;max-width:100%;height:190px}
.hero-stats{display:flex;gap:34px;margin-top:40px;flex-wrap:wrap}
.hero-stats div{display:flex;flex-direction:column;gap:2px}
.hero-stats b{font-family:"Cormorant Garamond",serif;font-size:26px;font-weight:600;color:var(--gold-hi);font-variant-numeric:tabular-nums}
.hero-stats small{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:30px}.hero-photo{order:-1}}
@media(max-width:620px){
  .tagline{letter-spacing:.12em;font-size:10.5px}
  .hero-actions{flex-direction:column;align-items:stretch;gap:12px}
  .hero-actions .btn{justify-content:center}
  .hero-stats{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:16px 12px}
  .hero-stats b{font-size:23px}
  .hero-stats small{font-size:8.5px;letter-spacing:.1em;line-height:1.5}
}

/* ===== THÂN · TÂM · TRÍ — thế tam giác, tâm là điểm cân bằng ===== */
.trinity{position:relative;max-width:920px;margin:0 auto}
.trinity .frame{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible}
.tri-grid{display:grid;grid-template-columns:1fr 1fr 1fr;row-gap:76px;align-items:start;position:relative;z-index:1}
.node{display:flex;flex-direction:column;align-items:center;text-align:center;gap:15px;max-width:290px;justify-self:center}
.node-head{display:flex;flex-direction:column;align-items:center;text-align:center;gap:15px}
.node.apex{max-width:268px}
.node.apex{--e:var(--e-tho);grid-column:2;grid-row:1}
.node.apex p{max-width:25ch}
.node{--e:var(--gold)}
.node.left{--e:var(--e-moc);grid-column:1;grid-row:2}
.node.right{--e:var(--e-thuy);grid-column:3;grid-row:2}
.node .ic{width:112px;display:grid;place-items:center;border-radius:50%;
  background:radial-gradient(closest-side,var(--halo),transparent 72%)}
.node .ic img{width:100%;transition:transform .6s cubic-bezier(.2,.7,.3,1)}
.node:hover .ic img{transform:scale(1.06)}
.node h3{font-family:"Be Vietnam Pro",sans-serif;font-weight:600;font-size:21px;letter-spacing:.18em;color:var(--gold-hi)}
.node .sub{font-family:"Cormorant Garamond",serif;font-style:italic;font-size:24px;color:var(--e);margin-top:-10px}
.node p{font-size:14.5px;color:var(--muted);line-height:1.65}
.core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:1;
  display:flex;flex-direction:column;align-items:center;gap:9px;pointer-events:none}
.core img{width:104px;filter:drop-shadow(0 0 26px var(--halo))}
.core span{font-family:"IBM Plex Mono",monospace;font-size:9.5px;letter-spacing:.34em;
  text-transform:uppercase;color:var(--gold);white-space:nowrap}
@media(max-width:880px){
  /* vẫn là thế tam giác như bản máy tính, chỉ thu nhỏ lại;
     ba đoạn mô tả tách xuống dưới để trang không bị kéo dài */
  .tri-grid{grid-template-columns:1fr 1fr 1fr;row-gap:34px;column-gap:6px}
  .node{display:contents}
  .node-head{gap:9px}
  .node.apex .node-head{grid-column:2;grid-row:1}
  .node.left .node-head{grid-column:1;grid-row:2}
  .node.right .node-head{grid-column:3;grid-row:2}
  .node.left p{grid-column:1/-1;grid-row:3}
  .node.right p{grid-column:1/-1;grid-row:4}
  .node.apex p{grid-column:1/-1;grid-row:5}
  .node p,.node.apex p{max-width:none;text-align:left;margin:0;padding-left:13px;
    border-left:2px solid var(--e);font-size:14px}
  .node p::before{content:attr(data-for) " — ";color:var(--e);font-weight:600}
  .node .ic{width:84px}
  .node h3{font-size:16px;letter-spacing:.16em}
  .node .sub{font-size:19px;margin-top:-6px}
  /* logo giữa tam giác bị đè lên chữ khi khung nhỏ nên ẩn đi, chỉ giữ đường nối */
  .core{display:none}
}
@media(max-width:560px){
  .tri-grid{row-gap:26px;column-gap:2px}
  .node .ic{width:62px}
  .node h3{font-size:13.5px;letter-spacing:.12em}
  .node .sub{font-size:16px;margin-top:-4px}
  .node p,.node.apex p{font-size:13.5px;padding-left:11px}
}
/* ===== NGŨ ÂM ===== */
/* thang năm bậc: mỗi bậc thụt vào sâu hơn, đọc như một quãng đi lên */
.scale-list{display:flex;flex-direction:column;border-top:1px solid var(--line-soft)}
.step{scroll-margin-top:164px;display:grid;grid-template-columns:78px 1fr;gap:26px;align-items:baseline;
  padding:24px 8px;border-bottom:1px solid var(--line-soft);transition:padding-left .35s ease,background .3s}
.step:nth-child(2){padding-left:26px}
.step:nth-child(3){padding-left:52px}
.step:nth-child(4){padding-left:78px}
.step:nth-child(5){padding-left:104px}
.step:nth-child(6){padding-left:130px}
.step:hover{background:var(--raised)}
.step .glyph{display:flex;align-items:baseline;justify-content:flex-end;line-height:1}
.step .glyph b{font-family:"Cormorant Garamond",serif;font-weight:400;font-size:38px;color:var(--gold);
  font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* Ngũ Âm: hệ Ngũ hành – Ngũ cung – Ngũ tạng, lồng bên trong chính mục đó */
.wuxing{margin-top:22px;border:1px solid var(--line-soft);background:var(--ground)}
.wuxing .cap{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;
  padding:12px 18px;border-bottom:1px solid var(--line-soft);
  font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--gold)}
.wuxing .cap em{font-style:normal;color:var(--muted);letter-spacing:.06em;text-transform:none;font-size:11px}
.wuxing .grid{display:grid;grid-template-columns:repeat(5,1fr)}
.wuxing .col{padding:18px 14px;display:flex;flex-direction:column;align-items:center;gap:9px;text-align:center;
  border-right:1px solid var(--line-soft);transition:background .3s}
.wuxing .col:last-child{border-right:0}
.wuxing .col:hover{background:var(--raised)}
.wuxing .hanh{font-family:"Be Vietnam Pro",sans-serif;font-weight:600;font-size:13px;
  letter-spacing:.14em;text-transform:uppercase;color:var(--e)}
.wuxing .cung{font-family:"Cormorant Garamond",serif;font-size:30px;color:var(--e);line-height:1}
.wuxing .col{--e:var(--gold);border-top:2px solid var(--e)}
.wuxing .col.moc{--e:var(--e-moc)} .wuxing .col.hoa{--e:var(--e-hoa)}
.wuxing .col.tho{--e:var(--e-tho)} .wuxing .col.kim{--e:var(--e-kim)}
.wuxing .col.thuy{--e:var(--e-thuy)}
.wuxing .cung small{display:block;font-family:"IBM Plex Mono",monospace;font-size:9.5px;
  letter-spacing:.18em;color:var(--muted);margin-top:5px}
.wuxing .tang{font-size:13.5px;color:var(--muted)}
@media(max-width:680px){
  .wuxing .grid{grid-template-columns:1fr}
  .wuxing .col{flex-direction:row;align-items:center;justify-content:flex-start;gap:14px;
    text-align:left;padding:13px 16px;border-right:0;border-top:0;
    border-left:3px solid var(--e);border-bottom:1px solid var(--line-soft)}
  .wuxing .col:last-child{border-bottom:0}
  .wuxing .hanh{width:54px;flex:none;font-size:12px}
  .wuxing .cung{display:flex;align-items:baseline;gap:9px;font-size:25px}
  .wuxing .cung small{display:inline;margin-top:0}
  .wuxing .tang{margin-left:auto}
}
.step h3{font-size:27px;margin-bottom:5px}
.step p{color:var(--muted);font-size:15px;max-width:62ch}
@media(max-width:780px){.step{grid-template-columns:56px 1fr;gap:16px;padding-left:0!important}
  .step .glyph b{font-size:32px}.step h3{font-size:22px}}

/* ===== FOUNDER ===== */
.founder{display:grid;grid-template-columns:.82fr 1.18fr;gap:52px;align-items:start}
.portrait{border:1px solid var(--line);position:relative;overflow:hidden;box-shadow:var(--shadow)}
.portrait img{width:100%;aspect-ratio:4/5;object-fit:cover}
.portrait .cap{padding:14px 18px;font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);border-top:1px solid var(--line-soft);background:var(--surface)}
.founder blockquote{margin:0;font-family:"Cormorant Garamond",serif;font-style:italic;font-size:clamp(24px,3.2vw,32px);line-height:1.35}
.founder .body{color:var(--muted);display:flex;flex-direction:column;gap:18px;margin-top:26px;font-size:16px}
.credo{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.chip{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;border:1px solid var(--line);padding:6px 12px;color:var(--muted)}
/* thẻ trùng tên một phương pháp thì bấm được, nhảy tới mục đó */
a.chip-lk{text-decoration:none;cursor:pointer;transition:color .2s,border-color .2s,background .2s}
a.chip-lk:hover,a.chip-lk:focus-visible{color:var(--gold-hi);border-color:var(--gold);background:var(--halo)}
/* tiểu sử dài: ảnh chân dung đi theo khi cuộn, hai cột luôn cân */
@media(min-width:821px){.founder .portrait{position:sticky;top:104px}}
.founder .body > *{margin:0}
.founder .body ul,.founder .body ol{padding-left:1.3em}
.founder .body strong,.founder .body b{color:var(--text)}
@media(max-width:820px){.founder{grid-template-columns:1fr;gap:30px}}

/* ===== TRACKS ===== */
.tracks{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.track{display:grid;grid-template-columns:64px minmax(0,1fr) minmax(0,1.1fr) auto;gap:28px;align-items:center;padding:24px 8px;border-bottom:1px solid var(--line-soft);transition:background .25s}
.track{cursor:pointer}
.track:hover{background:var(--surface)}
.track.active{background:var(--raised)}
.track.active h3{color:var(--gold-hi)}
.track.active .play{background:var(--bg2);color:var(--btn-ink);border-color:var(--bg3)}
.track .idx{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--gold);letter-spacing:.14em}
.track h3{font-size:26px;margin-bottom:4px}
.track .meta{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--muted);letter-spacing:.1em;font-variant-numeric:tabular-nums;display:flex;gap:14px;flex-wrap:wrap}
.track .meta .soon{color:var(--e-hoa)}
.track .wave{display:block;width:100%;min-width:0;max-width:100%;height:34px;opacity:.5;transition:opacity .3s}
.track:hover .wave{opacity:.9}
@media(max-width:900px){.track .wave{display:none}}
.play{width:48px;height:48px;border-radius:50%;border:1px solid var(--gold);background:none;cursor:pointer;
  display:grid;place-items:center;color:var(--gold);flex:none;padding-left:2px;
  transition:background .3s ease,color .3s ease,transform .3s ease,box-shadow .3s ease}
.play:hover{background:var(--bg2);color:var(--btn-ink);transform:scale(1.06);
  box-shadow:0 10px 24px -14px var(--gold)}
.play:active{transform:scale(1)}
/* lưới video: ảnh bìa thật, bấm mới nạp trình phát */
.vgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.vcard{display:flex;flex-direction:column;gap:12px}
.vshot{position:relative;aspect-ratio:16/9;border:1px solid var(--line);overflow:hidden;
  background:var(--surface);cursor:pointer;box-shadow:var(--shadow)}
.vshot img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.3,1),filter .4s}
.vcard:hover .vshot img{transform:scale(1.04);filter:brightness(1.06)}
.vshot::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(to top,rgba(10,14,24,.5),transparent 55%)}
.vplay{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;
  width:62px;height:62px;border-radius:50%;display:grid;place-items:center;color:var(--btn-ink);
  background-image:linear-gradient(158deg,var(--bg1) 0%,var(--bg2) 44%,var(--bg3) 112%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.55),0 12px 30px -12px rgba(0,0,0,.8);
  transition:transform .3s cubic-bezier(.2,.7,.3,1)}
.vcard:hover .vplay{transform:translate(-50%,-50%) scale(1.09)}
.vshot iframe{position:absolute;inset:0;width:100%;height:100%;border:0;z-index:3}
.vfail{position:absolute;inset:0;z-index:4;display:none;place-items:center;align-content:center;
  gap:14px;text-align:center;padding:22px;background:var(--surface)}
.vfail.on{display:grid}
.vfail p{font-size:13.5px;color:var(--muted);max-width:30ch;line-height:1.6}
.vmeta{display:flex;flex-direction:column;gap:4px}
.vmeta h3{font-size:22px}
.vmeta span{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);font-variant-numeric:tabular-nums}
.vlink{margin-top:2px;align-self:flex-start;font-family:"IBM Plex Mono",monospace;
  font-size:11px;letter-spacing:.1em;color:var(--gold);text-decoration:none;
  border-bottom:1px solid transparent;transition:border-color .25s,color .25s}
.vlink:hover{color:var(--gold-hi);border-bottom-color:var(--gold)}
.vall{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}

/* ===== OFFER ===== */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(268px,1fr));gap:1px;background:var(--line-soft);border:1px solid var(--line-soft)}
.card{background:var(--ground);padding:32px 28px;display:flex;flex-direction:column;gap:14px;transition:background .3s}
.card:hover{background:var(--surface)}
.card .lvl{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--e-moc)}
.card h3{font-size:25px}
.card p{font-size:14.5px;color:var(--muted);line-height:1.65}
.card ul{list-style:none;padding:0;margin:6px 0 0;display:flex;flex-direction:column;gap:9px}
.card li{font-size:14px;color:var(--muted);padding-left:18px;position:relative;line-height:1.5}
.card li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border:1px solid var(--gold);transform:rotate(45deg)}
.card .foot{margin-top:auto;padding-top:22px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line-soft)}
.card .price{font-family:"IBM Plex Mono",monospace;font-size:11.5px;letter-spacing:.1em;color:var(--gold)}
.card .go{font-size:13px;text-decoration:none;color:var(--text);border-bottom:1px solid var(--gold);padding-bottom:2px}
.card.feature{background:var(--surface);outline:1px solid var(--gold);outline-offset:-1px}
.one2one{margin-top:1px;background:var(--surface);border:1px solid var(--line-soft);border-top:0;display:grid;grid-template-columns:1.15fr .85fr;gap:0;align-items:stretch}
.one2one .txt{padding:34px 30px;display:flex;flex-direction:column;gap:8px;justify-content:center}
.one2one .txt h3{font-size:26px;margin-top:8px}
.one2one .txt p{color:var(--muted);font-size:14.5px;max-width:52ch}
.one2one .txt .btn{align-self:flex-start;margin-top:20px}
.one2one img{width:100%;height:100%;object-fit:cover;min-height:230px}
@media(max-width:760px){.one2one{grid-template-columns:1fr}.one2one img{order:-1;max-height:240px}}

/* ===== GALLERY ===== */
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:980px){.gal{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.gal{gap:10px}.gal figcaption{padding:9px 10px;font-size:9px;letter-spacing:.1em}}
.gal figure{margin:0;border:1px solid var(--line-soft);overflow:hidden;background:var(--surface)}
.gal img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .5s}
.gal figure:hover img{transform:scale(1.04)}
.gal figcaption{padding:12px 14px;font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);border-top:1px solid var(--line-soft)}

/* ===== SHOP ===== */
.shop{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:26px}
@media(max-width:560px){.shop{gap:18px}}
.item{display:flex;flex-direction:column;gap:14px}
.item .art{aspect-ratio:1;border:1px solid var(--line);position:relative;overflow:hidden;background:var(--raised)}
.item .art img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.3,1)}
.item:hover .art img{transform:scale(1.05)}
.item h3{font-size:20px}
.item .row{display:flex;align-items:baseline;justify-content:space-between;gap:10px}
.item .p{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--gold);letter-spacing:.08em}
.item small{color:var(--muted);font-size:13.5px;line-height:1.55}

/* ===== JOURNAL ===== */
.posts{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:34px}
.post{display:flex;flex-direction:column;gap:11px;padding-top:22px;border-top:1px solid var(--line)}
.post .date{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase}
.post h3{font-size:22px}
.post p{font-size:14.5px;color:var(--muted);line-height:1.65}
.post .more{font-size:13px;color:var(--gold);text-decoration:none;margin-top:4px}

/* ===== CONTACT ===== */
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:52px;align-items:start}
.info{display:flex;flex-direction:column;gap:24px}
/* web chỉ chia sẻ miễn phí: không còn phiếu đăng ký, mục Liên hệ chỉ còn thông tin */
.contact.chi-thong-tin{grid-template-columns:1fr;max-width:860px}
.lh-dong{display:flex;flex-direction:column;gap:24px}
.chi-thong-tin .lh-dong{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px 32px}
.info .line{display:flex;flex-direction:column;gap:4px}
.info .k{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}
.info .v{font-size:16px}
.info .v a{color:var(--text);text-decoration:none;border-bottom:1px solid var(--line)}
.info .v a:hover{border-color:var(--gold)}
form{display:flex;flex-direction:column;gap:18px;min-width:0;box-sizing:border-box;
  background:var(--surface);border:1px solid var(--line);padding:32px}
@media(max-width:560px){form{padding:22px 18px}}
.field{display:flex;flex-direction:column;gap:7px;min-width:0}
.field label{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.field input,.field select,.field textarea{width:100%;min-width:0;box-sizing:border-box;
  background:var(--ground);border:1px solid var(--line);color:var(--text);padding:12px 14px;
  font-family:inherit;font-size:15px;font-weight:300;border-radius:0}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--gold);outline-offset:1px;border-color:transparent}
.field textarea{resize:vertical;min-height:88px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:18px;min-width:0}
form button{color:var(--btn-ink);border:1px solid transparent;padding:16px;cursor:pointer;
  font-family:inherit;font-size:13.5px;font-weight:500;letter-spacing:.045em;
  background-image:linear-gradient(158deg,var(--bg1) 0%,var(--bg2) 44%,var(--bg3) 112%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 10px 26px -18px var(--bg3);
  transition:background-image .3s ease,transform .3s ease,box-shadow .3s ease}
form button:hover{transform:translateY(-1px);
  background-image:linear-gradient(158deg,#FBEBC6 0%,var(--bg1) 56%,var(--bg2) 114%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.7),0 14px 30px -16px var(--bg3)}
form button:active{transform:translateY(0)}
#formMsg{font-size:13.5px;color:var(--e-moc);display:none}
#formMsg.show{display:block}
@media(max-width:920px){.contact{grid-template-columns:1fr;gap:30px}.two{grid-template-columns:1fr}}


/* ===== NÚT LIÊN HỆ NỔI + POPUP ĐẶT LỊCH ===== */
.fab{position:fixed;right:18px;bottom:18px;z-index:80;display:flex;flex-direction:column;
  align-items:flex-end;gap:12px;padding-bottom:env(safe-area-inset-bottom,0)}
.fab button{position:relative;width:52px;height:52px;border-radius:50%;cursor:pointer;flex:none;
  display:grid;place-items:center;border:1px solid var(--bg3);color:var(--btn-ink);
  background-image:linear-gradient(158deg,var(--bg1) 0%,var(--bg2) 44%,var(--bg3) 112%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 10px 26px -12px rgba(0,0,0,.6);
  transition:transform .3s cubic-bezier(.2,.7,.3,1),box-shadow .3s}
.fab button:hover{transform:scale(1.07)}
.fab button:active{transform:scale(1)}
.fab svg{width:22px;height:22px}

/* nhóm 3 nút chỉ hiện khi bấm nút chính, để không che nội dung */
.fab-list{display:flex;flex-direction:column;align-items:flex-end;gap:12px;
  opacity:0;visibility:hidden;pointer-events:none;
  transform:translateY(10px) scale(.9);transform-origin:100% 100%;
  transition:opacity .26s ease,transform .3s cubic-bezier(.2,.7,.3,1),visibility .26s}
.fab.on .fab-list{opacity:1;visibility:visible;pointer-events:auto;transform:none}
.fab-list button{width:46px;height:46px}
.fab-list svg{width:20px;height:20px}
.fab-list button:nth-child(1){transition-delay:.06s}
.fab-list button:nth-child(2){transition-delay:.03s}

/* nút chính: mở ra thì xoay thành dấu đóng */
.fab-main svg{transition:transform .34s cubic-bezier(.2,.7,.3,1)}
.fab.on .fab-main svg{transform:rotate(135deg)}
.fab-main .bar-x{opacity:0;transition:opacity .2s}
.fab.on .fab-main .bar-bubble{opacity:0}
.fab.on .fab-main .bar-x{opacity:1}
.fab-main .bar-bubble{transition:opacity .2s}

.fab .tip{position:absolute;right:60px;top:50%;transform:translateY(-50%) translateX(6px);
  white-space:nowrap;background:var(--surface);color:var(--text);border:1px solid var(--line);
  font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  padding:7px 11px;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s}
.fab-list button:hover .tip,.fab-list button:focus-visible .tip{opacity:1;transform:translateY(-50%)}
.fab.on .fab-list .tip{opacity:1;transform:translateY(-50%)}
@media(max-width:620px){.fab{right:14px;bottom:14px;gap:10px}
  .fab button{width:48px;height:48px}.fab-list{gap:10px}.fab-list button{width:44px;height:44px}
  .fab .tip{font-size:9px;padding:6px 9px;right:54px}}
@media(prefers-reduced-motion:reduce){.fab-list,.fab-main svg{transition:none}}

.modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex}
.modal .veil{position:absolute;inset:0;background:rgba(6,9,16,.74);backdrop-filter:blur(3px)}
.modal .box{position:relative;width:100%;max-width:470px;max-height:92vh;overflow-y:auto;
  background:var(--surface);border:1px solid var(--line);box-shadow:0 40px 90px -40px rgba(0,0,0,.9);
  padding:30px 28px 28px;animation:mup .32s cubic-bezier(.2,.7,.3,1)}
@keyframes mup{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion: reduce){.modal .box{animation:none}}
.modal .x{position:absolute;top:12px;right:12px;width:34px;height:34px;border:1px solid var(--line);
  background:none;color:var(--muted);cursor:pointer;display:grid;place-items:center;font-size:15px;
  transition:border-color .25s,color .25s}
.modal .x:hover{border-color:var(--gold);color:var(--gold)}
.modal h3{font-size:27px;margin:8px 0 8px}
.modal.read .box{max-width:640px}
.read-body{display:flex;flex-direction:column;gap:15px;margin-top:4px}
.read-body p{font-size:15.5px;line-height:1.78;color:var(--text)}
.read-note{margin-top:22px;padding-top:16px;border-top:1px solid var(--line-soft);
  font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.1em;line-height:1.8;color:var(--muted)}
.modal .lede{color:var(--muted);font-size:14.5px;margin-bottom:20px}
.modal form{background:none;border:0;padding:0;gap:15px}
.modal .quick{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px;padding-bottom:18px;border-bottom:1px solid var(--line-soft)}
.modal .quick a{display:inline-flex;align-items:center;gap:8px;text-decoration:none;
  border:1px solid var(--line);color:var(--muted);padding:9px 15px;font-size:13px;
  transition:border-color .25s,color .25s}
.modal .quick a:hover{border-color:var(--gold);color:var(--gold)}
.modal .quick svg{width:15px;height:15px}
body.locked{overflow:hidden}

/* ===== FOOTER ===== */
footer{border-top:1px solid var(--line);padding:52px 0 40px;margin-top:20px}
.f-grid{display:flex;flex-wrap:wrap;gap:36px;justify-content:space-between;align-items:flex-start}
.f-grid .col{display:flex;flex-direction:column;gap:9px;font-size:14px;color:var(--muted)}
.f-grid a{color:var(--muted);text-decoration:none}
.f-grid a:hover{color:var(--gold)}
.f-lock{display:flex;flex-direction:column;gap:16px;align-items:center;text-align:center}
.f-lock .logo-img{height:112px;width:124px}
.f-lock .wmark b{font-size:29px;letter-spacing:.2em}
.f-lock .wmark .sub i{font-size:15px}
.f-lock .wmark .sub{margin-top:10px}
.f-rule{width:100%;max-width:250px;height:1px;flex:none;
  background:linear-gradient(90deg,transparent,var(--gold),transparent)}
.f-tag{font-family:"IBM Plex Mono",monospace;font-size:8.5px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--gold);line-height:2;max-width:260px}
@media(max-width:760px){.f-lock{align-items:flex-start;text-align:left}
  .f-rule{max-width:210px;background:linear-gradient(90deg,var(--gold),transparent)}}
.f-head{color:var(--gold);font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.2em;text-transform:uppercase}
.f-bottom{margin-top:40px;padding-top:22px;border-top:1px solid var(--line-soft);display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.1em;color:var(--muted)}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
@media (prefers-reduced-motion: reduce){*{animation:none!important;transition:none!important}}


/* ===== BỔ SUNG 14/09/2026 — nhánh Thiền Ca, Sound Bath, 5 Level, link YouTube ===== */

/* link YouTube dùng chung cho mọi mục */
.yt-link{display:inline-flex;align-items:center;gap:7px;margin-top:12px;
  font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--gold);text-decoration:none;transition:color .2s}
.yt-link svg{width:15px;height:15px;flex:none}
.yt-link:hover{color:var(--gold-hi)}
figcaption .yt-link{margin-top:6px;font-size:10px}

/* hai nhánh Album & Podcast */
.nhanh{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:44px}
.nh{display:flex;gap:18px;align-items:flex-start;background:var(--surface);
  border:1px solid var(--line-soft);padding:20px;box-shadow:var(--shadow)}
.nh-anh{width:104px;flex:none;overflow:hidden}
.nh-anh img{width:100%;height:104px;object-fit:cover;display:block}
.nh-txt{min-width:0}
.nh-txt h3{font-size:21px;margin-bottom:8px}
.nh-txt p{color:var(--muted);font-size:14.5px}
@media(max-width:880px){.nhanh{grid-template-columns:1fr;gap:14px}
  .nh{padding:16px;gap:14px}.nh-anh{width:78px}.nh-anh img{height:78px}}

/* Sound Bath — book show */
.one2one.bookshow{margin-top:0;margin-bottom:44px}
.one2one.bookshow .txt{padding-right:8px}
ul.ung-dung{list-style:none;padding:0;margin:16px 0 0;display:flex;flex-wrap:wrap;gap:8px}
ul.ung-dung li{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--muted);border:1px solid var(--line);padding:5px 11px}
.nut-hang{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:22px}
.nut-hang .yt-link{margin-top:0}

/* ảnh minh hoạ trong thẻ khoá học */
.card-anh{margin:-28px -28px 20px;overflow:hidden}
.card-anh img{width:100%;height:150px;object-fit:cover;display:block}
@media(max-width:720px){.card-anh{margin:-22px -22px 16px}.card-anh img{height:120px}}

/* khối 5 Level */
.level{margin-top:44px;padding:34px 38px;background:var(--surface);
  border:1px solid var(--line);border-left:3px solid var(--gold);box-shadow:var(--shadow)}
.level h3{font-size:27px;margin:14px 0 12px}
.level>p{color:var(--muted);max-width:74ch}
.level ul{margin:20px 0 0;padding:0;list-style:none;display:grid;gap:11px}
.level li{position:relative;padding-left:24px;font-size:14.5px;color:var(--text)}
.level li::before{content:"";position:absolute;left:0;top:11px;width:12px;height:1px;background:var(--gold)}
@media(max-width:720px){.level{padding:24px 22px}.level h3{font-size:23px}}

/* hồ sơ người sáng lập + lưu ý chuyên môn */
.ho-so{margin-top:16px}
.ho-so a{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--gold);text-decoration:none}
.ho-so a:hover{color:var(--gold-hi)}
.luu-y{margin-top:26px;padding:16px 18px;background:var(--raised);border-left:2px solid var(--line);
  font-size:13px;line-height:1.7;color:var(--muted)}

/* ảnh minh hoạ trong Hệ phương pháp */
.pp-anh{margin:20px 0 0;overflow:hidden;border:1px solid var(--line-soft)}
.pp-anh img{width:100%;height:auto;display:block;aspect-ratio:16/9;object-fit:cover}
.step .yt-link{margin-top:14px}

/* Ảnh bìa bài viết */
.post-anh{margin:-22px 0 2px;border-radius:3px;overflow:hidden;background:var(--raised)}
.post-anh img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover}

/* Bài viết soạn bằng trình soạn thảo — ảnh, video, bảng chèn trong bài */
.modal.read .box{max-width:760px}
.read-body{display:block}
.read-body>*+*{margin-top:15px}
.read-body h2{font-size:26px;margin:30px 0 0}
.read-body h3{font-size:21px;margin:26px 0 0}
.read-body h4{font-size:17px;margin:22px 0 0;font-family:"Be Vietnam Pro",sans-serif;font-weight:600}
.read-body img{display:block;max-width:100%;height:auto;margin:22px auto}
.read-body figure{margin:22px 0}
.read-body figcaption{font-size:12.5px;color:var(--muted);text-align:center;margin-top:8px}
.read-body iframe{display:block;width:100%;aspect-ratio:16/9;height:auto;max-width:100%;border:0;margin:22px 0}
.read-body ul,.read-body ol{padding-left:22px;color:var(--text);font-size:15.5px;line-height:1.78}
.read-body li+li{margin-top:6px}
.read-body a{color:var(--gold)}
.read-body blockquote{border-left:3px solid var(--gold);margin:22px 0;padding:2px 0 2px 18px;
  color:var(--muted);font-style:italic}
.read-body hr{border:0;border-top:1px solid var(--line-soft);margin:26px 0}
.read-body table{width:100%;border-collapse:collapse;font-size:14.5px;margin:22px 0;display:block;overflow-x:auto}
.read-body th,.read-body td{border:1px solid var(--line);padding:8px 11px;text-align:left;vertical-align:top}
.read-body th{background:var(--raised);font-weight:600}

/* ===== Trang riêng của một bài viết ===== */
.bai-le{padding:52px 0 70px}
.bai-le .wrap{max-width:760px}
.ve-lai{display:inline-block;font-family:"IBM Plex Mono",monospace;font-size:11.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);text-decoration:none;margin-bottom:28px;transition:color .25s}
.ve-lai:hover{color:var(--gold)}
.bai-le h1{font-size:clamp(30px,5vw,46px);margin:14px 0 0}
/* Sapo mở đầu. Căn lề do anh Mạnh tự chọn trong CMS — CSS không ép,
   kể cả trên điện thoại. Chỉ ngắt dòng ở link quá dài, không dùng break-all. */
.bai-tom{font-size:17.5px;line-height:1.7;color:var(--muted);margin:18px 0 0;
  overflow-wrap:break-word}
div.bai-tom>p{margin:0 0 12px}
div.bai-tom>p:last-child{margin-bottom:0}
/* Toàn bài căn đều hai bên — Sapo và thân bài, trên mọi màn hình, kể cả điện thoại.
   Không dùng !important: đoạn nào anh Mạnh chọn căn khác trong CMS thì vẫn theo CMS. */
.bai-tom,.bai-noi-dung p,.bai-noi-dung li{text-align:justify}
.bai-bia{margin:32px 0 0}
.bai-bia img{display:block;width:100%;height:auto;border-radius:3px}
.bai-noi-dung{margin-top:34px;font-size:16.5px;line-height:1.8;color:var(--text)}
.bai-noi-dung>*+*{margin-top:17px}
.bai-chia-se{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line-soft);font-size:13.5px}
.bai-chia-se span{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted)}
.bai-chia-se a,.bai-chia-se button{font:inherit;font-size:13.5px;border:1px solid var(--line);background:none;
  color:var(--muted);padding:7px 15px;text-decoration:none;cursor:pointer;transition:border-color .25s,color .25s}
.bai-chia-se a:hover,.bai-chia-se button:hover{border-color:var(--gold);color:var(--gold)}
/* thẻ bài ngoài trang chủ: tiêu đề và ảnh bấm được */
.post h3 a{color:inherit;text-decoration:none}
.post h3 a:hover{color:var(--gold)}
a.post-anh{display:block;text-decoration:none}

/* ---------- nút Xem tất cả bài viết ---------- */
.xem-tat-ca{display:flex;justify-content:center;margin-top:46px}
.nut-vien{display:inline-block;padding:13px 30px;border:1px solid var(--line);border-radius:999px;
  font-family:"IBM Plex Mono",monospace;font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold);text-decoration:none;background:transparent;line-height:1;
  transition:background .25s ease,border-color .25s ease,color .25s ease}
.nut-vien:hover{background:var(--gold);border-color:var(--gold);color:var(--btn-ink)}
.nut-vien:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

/* ---------- trang danh sách bài viết ---------- */
.ds-bai{padding:clamp(40px,7vw,80px) 0 clamp(56px,8vw,96px)}
.ds-bai .sec-head{margin-bottom:clamp(30px,5vw,48px)}
.ds-bai h1{font-size:clamp(30px,4.6vw,48px)}

.ds-dong{display:flex;flex-direction:column;border-top:1px solid var(--line-soft)}
.bai-dong{display:grid;grid-template-columns:260px 1fr;gap:34px;align-items:start;
  padding:34px 0;border-bottom:1px solid var(--line-soft)}
.bd-trong{aspect-ratio:4/3;border:1px solid var(--line-soft);border-radius:3px;
  background-color:var(--surface);background-image:var(--logo);
  background-repeat:no-repeat;background-position:center;background-size:44% auto;
  opacity:.38;transition:opacity .3s ease}
.bai-dong:hover .bd-trong{opacity:.55}
.bd-anh{display:block;overflow:hidden;border-radius:3px;background-color:var(--surface)}
.bd-anh img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform .5s ease}
.bai-dong:hover .bd-anh img{transform:scale(1.04)}
.bd-chu{display:flex;flex-direction:column;gap:12px;min-width:0}
.bd-chu .date{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--gold)}
.bd-chu h2,.bd-chu h3{font-size:clamp(21px,2.4vw,28px);line-height:1.22}
.bd-chu h2 a,.bd-chu h3 a{color:inherit;text-decoration:none;transition:color .25s ease}
.bd-chu h2 a:hover,.bd-chu h3 a:hover{color:var(--gold)}
.bd-chu p{color:var(--muted);font-size:15.5px;max-width:62ch}
.bd-duoi{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:2px}
.bd-duoi .more{font-size:13px;color:var(--gold);text-decoration:none}
.bd-duoi .more:hover{text-decoration:underline}

@media (max-width:720px){
  .bai-dong{grid-template-columns:1fr;gap:18px;padding:28px 0}
  .bd-anh img{aspect-ratio:16/9}
  .bd-trong{display:none}
}

.ds-dem{margin-top:34px;text-align:center;font-family:"IBM Plex Mono",monospace;font-size:11px;
  letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.ds-trong{padding:54px 0;text-align:center;color:var(--muted)}

/* ---------- trang chi tiết của một mục ---------- */
.muc-lk{color:inherit;text-decoration:none;transition:color .25s ease}
.muc-lk:hover{color:var(--gold)}
.step .more{display:block;width:fit-content;margin-top:14px;font-size:13px;color:var(--gold);text-decoration:none}
.step .more:hover{text-decoration:underline}
.muc-video{margin:28px 0;border-radius:4px;overflow:hidden;background:var(--surface)}
.muc-video iframe{display:block;width:100%;aspect-ratio:16/9;border:0}
.muc-gia{display:flex;align-items:baseline;gap:12px;margin:22px 0;padding:14px 18px;
  border:1px solid var(--line-soft);border-radius:4px;background:var(--surface)}
.muc-gia span{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--muted)}
.muc-gia b{font-family:"Cormorant Garamond",serif;font-size:24px;font-weight:600;color:var(--gold)}
.muc-bai{margin-top:52px;padding-top:12px;border-top:1px solid var(--line-soft)}
.muc-bai h2{font-size:clamp(22px,3vw,30px);margin-bottom:6px}

/* Khung chờ ảnh: nền dịu có vệt sáng chạy nhẹ thay cho ô đen, ảnh tải xong thì tắt hẳn
   (lớp .da-tai do script tai-anh-som gắn vào) — ảnh PNG nền trong suốt không bị dính nền */
.bai-noi-dung img,.bai-bia img,.read-body img{
  background:var(--raised) linear-gradient(110deg,transparent 35%,var(--halo) 50%,transparent 65%) 0 0/300% 100% no-repeat;
  animation:cho-anh 1.4s linear infinite}
.bai-noi-dung img.da-tai,.bai-bia img.da-tai,.read-body img.da-tai{background:none;animation:none}
@keyframes cho-anh{from{background-position:150% 0}to{background-position:-150% 0}}
@media (prefers-reduced-motion:reduce){.bai-noi-dung img,.bai-bia img,.read-body img{animation:none}}

/* ================= WORKSHOP THEO CHỦ ĐỀ ================= */
/* thẻ ở trang chủ: dùng chung khuôn thẻ bài viết, thêm nhãn số ảnh */
.ws-the .post-anh{position:relative}
.ws-so-anh{position:absolute;right:10px;bottom:10px;padding:3px 9px;border-radius:999px;
  font:500 11.5px/1.4 "IBM Plex Mono",monospace;letter-spacing:.02em;
  background:rgba(10,14,24,.72);color:#F3E7C9;backdrop-filter:blur(4px)}
.ws-so{font:500 12px/1 "IBM Plex Mono",monospace;color:var(--muted);margin-left:auto}

/* album trên trang chi tiết */
.album{margin-top:46px}
.album h2{font-size:clamp(22px,3vw,30px);margin:0 0 16px;display:flex;align-items:baseline;gap:12px}
.album h2 span{font:500 12px/1 "IBM Plex Mono",monospace;color:var(--muted);letter-spacing:.04em}
.album-luoi{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.album-luoi figure{margin:0;display:flex;flex-direction:column;gap:6px}
.album-luoi a{display:block;border-radius:3px;overflow:hidden;background:var(--raised);cursor:zoom-in}
.album-luoi img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease}
.album-luoi a:hover img,.album-luoi a:focus-visible img{transform:scale(1.035)}
.album-luoi figcaption{font-size:12.5px;line-height:1.5;color:var(--muted)}
@media(max-width:600px){.album-luoi{grid-template-columns:repeat(2,1fr);gap:7px}}

/* khung xem ảnh lớn */
.hop-den{position:fixed;inset:0;z-index:200;background:rgba(6,8,14,.94);display:flex;align-items:center;justify-content:center}
.hop-den figure{margin:0;max-width:92vw;max-height:88vh;display:flex;flex-direction:column;align-items:center;gap:10px}
.hop-den img{max-width:92vw;max-height:80vh;width:auto;height:auto;border-radius:2px;background:none!important;animation:none!important}
.hop-den figcaption{color:#d9d3c4;font-size:14px;text-align:center;max-width:70ch}
.hop-den button{position:absolute;border:0;background:rgba(255,255,255,.08);color:#f3ecdc;cursor:pointer;
  width:46px;height:46px;border-radius:50%;font-size:28px;line-height:1;display:grid;place-items:center}
.hop-den button:hover,.hop-den button:focus-visible{background:rgba(255,255,255,.18)}
.hd-dong{top:16px;right:16px}
.hd-lui{left:16px;top:50%;transform:translateY(-50%)}
.hd-toi{right:16px;top:50%;transform:translateY(-50%)}
.hd-dem{position:absolute;bottom:18px;left:0;right:0;text-align:center;color:#b9b2a2;font:500 12px/1 "IBM Plex Mono",monospace}
@media(max-width:600px){.hd-lui,.hd-toi{top:auto;bottom:10px;transform:none}.hd-lui{left:12px}.hd-toi{right:12px}}

/* cảm nhận của học viên */
.cam-nhan{margin-top:52px}
.album,.cam-nhan{padding:0}
.cam-nhan h2{font-size:clamp(22px,3vw,30px);margin:0 0 18px}
.cn-luoi{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.cn{margin:0;padding:22px 22px 18px;border:1px solid var(--line);border-radius:4px;background:var(--surface);
  display:flex;flex-direction:column;gap:14px;position:relative}
.cn::before{content:"“";position:absolute;top:-4px;left:16px;font:400 54px/1 "Cormorant Garamond",Georgia,serif;color:var(--gold)}
.cn p{margin:14px 0 0;font:italic 400 18px/1.6 "Cormorant Garamond",Georgia,serif;color:var(--text)}
.cn footer{display:flex;flex-direction:column;gap:2px;font-size:13.5px;padding:0;margin:auto 0 0;border:0;background:none;text-align:left}
.cn footer b{font-weight:600;color:var(--text)}
.cn footer span{color:var(--muted);font-size:12.5px}