/* =====================================================================
   ZEN'S NEW — BẢN NÂNG CẤP 2 (nạp sau style.css)
   Nền Thạch Lựu Mộc, biểu tượng, con trỏ, dây leo tiến độ, bộ khung mở rộng.
   ===================================================================== */

/* ---------- Nền dài theo trang: trời sáng sớm (đầu trang) → núi → rừng → hồ → đáy thủy sinh (cuối trang).
   Ảnh vẽ sẵn và làm mờ: anh/nen-troi-nui-ho-thuy-sinh.webp. Các khối phủ một lớp kính mờ để chữ luôn dễ đọc. ---------- */
body{background:#eef5fa;position:relative}
body::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;background:url("../anh/nen-troi-nui-ho-thuy-sinh.webp") center top/cover no-repeat}
main>section:not(.dark),main>article,main>header,main>div{background:rgba(251,253,255,.74)}
main>section.hero{background:rgba(251,253,255,.6)}
main,.foot{position:relative;z-index:1}
.dark{background:rgba(7,42,82,.78)}
.foot.dark{background:rgba(7,42,82,.9)}
.card{background:rgba(255,255,255,.86);backdrop-filter:blur(6px)}
.dark .card{background:rgba(11,59,112,.72)}
.col:hover,.col.active,.post:hover{background:rgba(242,247,252,.85)}
#loader{background:#fbfdff}

/* ---------- Biểu tượng Z Đá ---------- */
.logo{display:inline-flex;align-items:center;gap:10px}
.logo .emblem{width:36px;height:40px;flex:none;object-fit:contain;filter:drop-shadow(0 1px 2px rgba(7,42,82,.35));transition:transform .5s cubic-bezier(.34,1.56,.64,1)}
.logo:hover .emblem{transform:rotate(-6deg) scale(1.06)}
.ring-stage{position:relative}
.loader-emblem{position:absolute;left:50%;top:50%;width:74px;height:82px;margin:-41px 0 0 -37px}
.loader-emblem .emblem{width:100%;height:100%;object-fit:contain;transform:translateY(14px) scale(.8);opacity:0;animation:zn-grow .9s .2s cubic-bezier(.34,1.56,.64,1) forwards}
@keyframes zn-grow{to{transform:none;opacity:1}}

/* ---------- Dây leo tiến độ đọc ---------- */
.vine{position:fixed;top:0;left:0;right:0;height:3px;z-index:70;pointer-events:none}
.vine i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--blue-3),var(--green));position:relative}
.vine i::after{content:"";position:absolute;right:-5px;top:-4px;width:11px;height:11px;border-radius:0 60% 0 60%;background:var(--green);transform:rotate(-20deg)}

/* ---------- Con trỏ giọt nước ---------- */
.has-cursor,.has-cursor a,.has-cursor button,.has-cursor label{cursor:none}
.cursor{position:fixed;left:0;top:0;z-index:90;pointer-events:none}
.cursor span{position:absolute;left:-7px;top:-7px;width:14px;height:14px;border-radius:50%;background:var(--green);display:grid;place-items:center;font:500 10px var(--mono);text-transform:uppercase;color:#fff;transition:width .3s,height .3s,left .3s,top .3s,background .3s}
.cursor.big span{width:46px;height:46px;left:-23px;top:-23px;background:rgba(23,163,95,.35)}
.cursor.label span{width:76px;height:76px;left:-38px;top:-38px;background:var(--green)}

/* ---------- Tiêu đề khối: lau chữ + gạch xanh mọc ra ---------- */
.wipe{clip-path:inset(0 0 100% 0);transform:translateY(24px);transition:clip-path 1.1s cubic-bezier(.77,0,.18,1),transform 1.1s cubic-bezier(.22,1,.36,1)}
.wipe.in{clip-path:inset(-25% 0 -12% 0);transform:none}
.sec-head{position:relative}
.sec-head::after{content:"";position:absolute;left:0;bottom:-1px;height:2px;width:0;background:var(--green);transition:width 1.4s .3s cubic-bezier(.22,1,.36,1)}
.sec-head:has(.wipe.in)::after{width:100%}

/* ---------- Ảnh chân dung: duotone, rê chuột hiện màu thật, nghiêng 3D, hạt phim ---------- */
.hero-photo img{transition:filter .8s,transform 1.2s}
.hero-photo::after,.hero-photo .tint{transition:opacity .8s}
.hero-photo:hover img{filter:contrast(1.05) saturate(.9);mix-blend-mode:normal}
.hero-photo:hover::after,.hero-photo:hover .tint{opacity:0}
/* ảnh thương hiệu đầu trang: giữ màu thật (quả hồng cam là điểm nhấn), không phủ duotone */
.hero-photo.mau img{filter:none;mix-blend-mode:normal}
.hero-photo.mau::after,.hero-photo.mau .tint{opacity:0}
.tilt{transition:transform .5s cubic-bezier(.22,1,.36,1)}
.badge-float{position:absolute;right:10px;bottom:10px;z-index:3;font:500 10px var(--mono);text-transform:uppercase;color:#fff;background:rgba(7,42,82,.72);padding:5px 9px;border-radius:999px}
.grain{position:absolute;inset:0;z-index:2;pointer-events:none;opacity:.18;mix-blend-mode:overlay;background-image:url("data:image/svg+xml;utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.magnet{transition:transform .35s cubic-bezier(.22,1,.36,1)}
.poster.p-grid{background:linear-gradient(var(--blue-2) 1px,transparent 1px) 0 0/28px 28px,linear-gradient(90deg,var(--blue-2) 1px,transparent 1px) 0 0/28px 28px,#0d4583}
.about-photo img{object-position:center 30%}

/* ---------- Chân dung 30 giây (trang Về tôi) ---------- */
.portrait30{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.8fr);gap:clamp(24px,5vw,80px);align-items:center}
.words{display:flex;flex-wrap:wrap;gap:10px 12px;margin:0 0 26px;padding:0;list-style:none}
.words li{font:800 clamp(24px,3vw,46px)/1 var(--display);text-transform:uppercase;padding:8px 20px 4px;border:2px solid var(--ink);border-radius:999px;background:rgba(255,255,255,.7);transition:background .3s,color .3s,transform .3s}
.words li:nth-child(3n+2){background:var(--green);border-color:var(--green);color:#fff}
.words li:hover{transform:rotate(-2deg) scale(1.04);background:var(--blue);border-color:var(--blue);color:#fff}
.in30{font:400 clamp(18px,1.6vw,22px)/1.7 var(--body);max-width:680px;margin:0}
.in30 strong{color:var(--green-2)}
.duo-photos{position:relative;height:clamp(420px,48vw,640px)}
.duo-photos figure{position:absolute;margin:0;overflow:hidden;box-shadow:0 30px 60px rgba(7,42,82,.25)}
.duo-photos figure img{width:100%;height:100%;object-fit:cover}
.duo-photos .p1{left:0;top:0;width:66%;aspect-ratio:4/5}
.duo-photos .p2{right:0;bottom:0;width:50%;aspect-ratio:4/5;border:6px solid #fff}
.duo-photos figcaption{position:absolute;left:10px;bottom:10px;z-index:3;font:500 10px var(--mono);text-transform:uppercase;color:#fff;background:rgba(7,42,82,.72);padding:4px 8px;border-radius:999px}

/* =====================================================================
   BỘ KHUNG MỞ RỘNG — mẫu xem ở bo-khung.html, mỗi khung một lớp "k-…"
   ===================================================================== */
.k-label{display:inline-block;font:500 11px var(--mono);text-transform:uppercase;background:var(--green-soft);color:var(--green-2);padding:4px 10px;border-radius:999px}
.k-fullbleed{position:relative;height:min(88vh,760px);overflow:hidden;color:#fff;display:flex;align-items:flex-end;padding:var(--gut)}
.k-fullbleed img{position:absolute;left:0;top:-8%;width:100%;height:116%;object-fit:cover;z-index:0}
.k-fullbleed::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(7,42,82,0) 30%,rgba(7,42,82,.85))}
.k-fullbleed .cap{position:relative;z-index:2;max-width:820px}
.k-fullbleed h2{font:800 clamp(44px,7vw,120px)/.86 var(--display);text-transform:uppercase;margin:0 0 12px}
.k-fullbleed p{font:500 13px/1.7 var(--mono);text-transform:uppercase;margin:0}
.k-video{position:relative;width:100%;aspect-ratio:16/9;background:var(--blue);overflow:hidden;border-radius:4px}
.k-video.doc{aspect-ratio:9/16;max-width:340px}
.k-video iframe,.k-video video{position:absolute;inset:0;width:100%;height:100%;border:0}
.k-video .ph{position:absolute;inset:0;display:grid;place-items:center;color:var(--sky);font:500 12px var(--mono);text-transform:uppercase;text-align:center;padding:20px}
.k-video .ph b{display:block;width:74px;height:74px;border-radius:50%;background:var(--green);margin:0 auto 14px;position:relative;transition:transform .3s}
.k-video:hover .ph b{transform:scale(1.1)}
.k-video .ph b::after{content:"";position:absolute;left:30px;top:24px;border-left:20px solid #fff;border-top:13px solid transparent;border-bottom:13px solid transparent}
.k-media2{display:grid;grid-template-columns:1.3fr 1fr;gap:clamp(20px,4vw,60px);align-items:center}
.k-media2.rev{grid-template-columns:1fr 1.3fr}
.k-media2.rev>:first-child{order:2}
.k-media2 figure{margin:0;overflow:hidden}
.k-media2 img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 1s}
.k-media2 figure:hover img{transform:scale(1.04)}
.k-media2 h3{font:800 clamp(30px,3.6vw,54px)/.92 var(--display);text-transform:uppercase;margin:0 0 14px}
.k-media2 p{margin:0 0 12px}
.ba{position:relative;aspect-ratio:16/10;overflow:hidden;--pos:50%;user-select:none}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ba .after{clip-path:inset(0 0 0 var(--pos))}
.ba .line{position:absolute;top:0;bottom:0;left:var(--pos);width:2px;background:#fff;z-index:2}
.ba .line::after{content:"⟷";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:44px;height:44px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;font:500 18px var(--mono)}
.ba input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;z-index:3;margin:0}
.ba .tag{position:absolute;top:12px;z-index:2;font:500 11px var(--mono);text-transform:uppercase;color:#fff;background:rgba(7,42,82,.72);padding:4px 10px;border-radius:999px}
.ba .tag.l{left:12px}
.ba .tag.r{right:12px}
.k-steps{counter-reset:ks;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--gut)}
.k-steps>div{counter-increment:ks;border-top:2px solid var(--ink);padding-top:18px}
.k-steps>div::before{content:counter(ks,decimal-leading-zero);font:800 64px/.9 var(--display);color:var(--green);display:block;margin-bottom:10px}
.k-steps h3{font:800 28px/.95 var(--display);text-transform:uppercase;margin:0 0 8px}
.k-steps p{margin:0;color:var(--muted)}
.k-masonry{columns:3 240px;column-gap:10px}
.k-masonry figure{break-inside:avoid;margin:0 0 10px;position:relative;overflow:hidden}
.k-masonry img{width:100%;display:block;transition:transform .8s}
.k-masonry figure:hover img{transform:scale(1.05)}
.k-masonry figcaption{position:absolute;left:0;right:0;bottom:0;padding:10px;font:500 11px var(--mono);text-transform:uppercase;color:#fff;background:linear-gradient(transparent,rgba(7,42,82,.85));transform:translateY(100%);transition:transform .4s}
.k-masonry figure:hover figcaption{transform:none}
.k-split-quote{display:grid;grid-template-columns:auto 1fr;gap:var(--gut);align-items:start}
.k-split-quote .mark{font:800 clamp(120px,16vw,260px)/.7 var(--display);color:var(--green)}
.k-split-quote blockquote{margin:0;font:800 clamp(30px,4.4vw,72px)/.95 var(--display);text-transform:uppercase}
.k-split-quote cite{display:block;margin-top:18px;font:500 12px var(--mono);font-style:normal;text-transform:uppercase;color:var(--muted)}
.k-cta{display:flex;justify-content:space-between;align-items:center;gap:var(--gut);flex-wrap:wrap;padding:clamp(32px,5vw,64px);border-radius:6px}
.k-cta h3{font:800 clamp(34px,4.6vw,72px)/.9 var(--display);text-transform:uppercase;margin:0}
.k-cta a{display:inline-flex;align-items:center;height:64px;padding:0 34px;border-radius:999px;background:var(--green);color:#fff;font:500 13px var(--mono);text-transform:uppercase;text-decoration:none}
.k-demo{padding:clamp(40px,6vw,80px) 0;border-top:1px dashed var(--line)}
.k-head{display:flex;justify-content:space-between;gap:12px;align-items:baseline;flex-wrap:wrap;margin-bottom:22px}
.k-head h2{font:800 clamp(30px,3.6vw,52px)/.95 var(--display);text-transform:uppercase;margin:6px 0 0}
.k-head code{font:500 12px var(--mono);color:var(--muted)}
.k-wrap{padding:0 var(--gut) 80px}

/* ---------- Người truyền lửa: ảnh thầy cắt sát, phủ tông xanh, viền tan vào nền ---------- */
.mentor{display:grid;grid-template-columns:minmax(260px,.9fr) minmax(0,1.1fr);gap:clamp(24px,5vw,80px);align-items:center}
.mentor-photos{position:relative;height:clamp(420px,46vw,620px)}
.mentor-photos figure{position:absolute;margin:0;overflow:hidden;-webkit-mask-image:radial-gradient(ellipse 72% 78% at 50% 46%,#000 58%,transparent 100%);mask-image:radial-gradient(ellipse 72% 78% at 50% 46%,#000 58%,transparent 100%)}
.mentor-photos img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.1);mix-blend-mode:multiply;transition:filter .8s}
.mentor-photos figure::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,var(--blue-3),var(--green));mix-blend-mode:screen;opacity:.5;transition:opacity .8s;pointer-events:none}
.mentor-photos figure:hover img{filter:none;mix-blend-mode:normal}
.mentor-photos figure:hover::after{opacity:0}
.mentor-photos .m1{left:0;top:0;width:62%;aspect-ratio:4/5;background:var(--paper)}
.mentor-photos .m2{right:0;bottom:0;width:54%;aspect-ratio:4/5;background:var(--paper)}
.mentor-words li{font-size:clamp(24px,2.6vw,40px)}
@media (max-width:860px){
  .mentor{grid-template-columns:1fr}
  .mentor-photos{height:auto;display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .mentor-photos figure{position:relative;width:auto!important;left:auto;right:auto;top:auto;bottom:auto}
}

/* Chữ lớn tiếng Việt xuống dòng: chừa chỗ cho dấu, không chạm dòng trên */
.sec-title,.page-hero h1{line-height:.9}
.quote,.k-split-quote blockquote{line-height:1.02}

@media (max-width:860px){
  .portrait30,.k-media2,.k-media2.rev,.k-split-quote{grid-template-columns:1fr}
  .k-media2.rev>:first-child{order:0}
  .duo-photos{height:auto;display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .duo-photos figure{position:relative;width:auto!important;left:auto;right:auto;top:auto;bottom:auto}
  .duo-photos .p2{border:0}
  #nen{opacity:.16}
}

/* ---------- Trang một tuyến (chu-de.html) ---------- */
.col-go{display:inline-block;margin:14px 0 0 10px;font:500 11px var(--mono);text-transform:uppercase;color:var(--green-2);text-decoration:none;border-bottom:1px solid currentColor}
.cat h3 a{text-decoration:none;color:inherit;background:linear-gradient(var(--green),var(--green)) 0 100%/0 2px no-repeat;transition:background-size .4s}
.cat h3 a:hover{background-size:100% 2px}
.topic-hero{position:relative;overflow:hidden}
.topic-hero h1{position:relative;max-width:calc(100% - min(34vw,420px) - 48px);font-size:clamp(56px,8.4vw,150px);line-height:.9}
.topic-poster{position:absolute;right:var(--gut);top:110px;width:min(34vw,420px);aspect-ratio:4/5;border-radius:6px;overflow:hidden;opacity:.9;background:var(--blue);animation:tp-float 9s ease-in-out infinite}
.topic-poster img,.topic-poster .poster{width:100%;height:100%;object-fit:cover;display:block}
.topic-hero .crumb,.topic-hero .lede,.topic-hero .signal{position:relative}
.topic-hero .lede{max-width:min(620px,52vw)}
@keyframes tp-float{50%{transform:translateY(-12px) rotate(-1deg)}}
.signal{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:30px;font-size:12px;text-transform:uppercase;max-width:620px}
.signal .dot{width:10px;height:10px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(23,163,95,.6);animation:tp-ping 1.8s infinite}
@keyframes tp-ping{70%{box-shadow:0 0 0 14px rgba(23,163,95,0)}100%{box-shadow:0 0 0 0 rgba(23,163,95,0)}}
.signal .bar{flex:1;min-width:120px;height:3px;background:var(--line);position:relative;overflow:hidden;border-radius:3px}
.signal .bar i{position:absolute;inset:0 auto 0 0;width:30%;background:linear-gradient(90deg,var(--blue-3),var(--green));animation:tp-scan 2.6s cubic-bezier(.6,0,.3,1) infinite}
@keyframes tp-scan{0%{transform:translateX(-110%)}100%{transform:translateX(360%)}}
.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:var(--gut)}
.topic-cell{position:relative;overflow:hidden;min-height:200px;padding:24px;border:1px solid var(--line);background:rgba(255,255,255,.86);backdrop-filter:blur(6px);display:flex;flex-direction:column;justify-content:space-between;transition:transform .5s,border-color .5s}
.topic-cell:hover{transform:translateY(-6px);border-color:var(--green)}
.topic-cell .code{font:500 11px var(--mono);color:var(--green-2)}
.topic-cell h3{font:800 clamp(26px,2.4vw,36px)/.98 var(--display);text-transform:uppercase;margin:10px 0 18px}
.topic-cell .tag{align-self:flex-start;font:500 11px var(--mono);text-transform:uppercase;padding:4px 10px;border-radius:999px;background:var(--green-soft);color:var(--green-2)}
.topic-cell.soon .tag{background:var(--paper);color:var(--muted);border:1px dashed var(--line)}
.topic-cell.soon::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,transparent 40%,rgba(23,163,95,.12) 50%,transparent 60%);background-size:250% 100%;animation:tp-shine 3.4s linear infinite;pointer-events:none}
.topic-cell.soon:nth-child(2)::after{animation-delay:.5s}.topic-cell.soon:nth-child(3)::after{animation-delay:1s}.topic-cell.soon:nth-child(4)::after{animation-delay:1.5s}
@keyframes tp-shine{0%{background-position:120% 0}100%{background-position:-120% 0}}
.topic-cta{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14)}
.topic-nav{display:grid;grid-template-columns:1fr 1fr;gap:var(--gut);margin-top:var(--gut)}
.topic-nav a{display:block;padding:24px;border:1px solid rgba(255,255,255,.14);text-decoration:none;color:inherit;font:800 clamp(24px,2.6vw,40px)/1 var(--display);text-transform:uppercase;transition:background .4s}
.topic-nav a:last-child{text-align:right}
.topic-nav a:hover{background:rgba(23,163,95,.16)}
.topic-nav .mono{display:block;font:500 11px var(--mono);margin-bottom:10px;opacity:.7}
@media (max-width:760px){
  .topic-poster{position:relative;right:auto;top:auto;width:100%;aspect-ratio:16/9;margin:0 0 22px}
  .topic-hero .lede{max-width:none}.topic-hero h1{max-width:none}
  .topic-nav{grid-template-columns:1fr}.topic-nav a:last-child{text-align:left}
}

/* ---------- Người truyền lửa: ảnh đã tách nền, đứng trên vòng tròn ---------- */
.mentor-photos.cut figure{-webkit-mask-image:none;mask-image:none;overflow:visible;background:none}
.mentor-photos.cut figure::after{display:none}
.mentor-photos.cut figure::before{content:"";position:absolute;left:8%;right:8%;bottom:4%;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 30% 25%,var(--green) 0%,var(--blue-3) 55%,var(--blue) 100%);opacity:.9;transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.mentor-photos.cut .m2::before{background:radial-gradient(circle at 70% 25%,var(--sky) 0%,var(--blue-3) 50%,var(--blue-2) 100%)}
.mentor-photos.cut img{position:relative;object-fit:contain;object-position:center bottom;mix-blend-mode:normal;filter:drop-shadow(0 18px 24px rgba(7,42,82,.28));transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.mentor-photos.cut figure:hover img{filter:drop-shadow(0 26px 30px rgba(7,42,82,.34));transform:translateY(-8px) scale(1.02)}
.mentor-photos.cut figure:hover::before{transform:scale(1.06)}
.mentor-photos.cut .m2{z-index:1}
.mentor-photos.cut img{-webkit-mask-image:linear-gradient(#000 80%,transparent 99%);mask-image:linear-gradient(#000 80%,transparent 99%)}

/* ---------- Ảnh đại diện tròn: viền mờ dần, quầng sáng xanh lá – xanh trời xoay chậm ---------- */
.avatar{position:relative;width:min(280px,62vw);aspect-ratio:1;margin:0 auto;border-radius:50%;isolation:isolate}
.avatar::before{content:"";position:absolute;inset:-16px;border-radius:50%;z-index:-1;background:conic-gradient(from 0deg,var(--green),#7fd4ff,var(--blue-3),#9be7c4,var(--green));filter:blur(22px);opacity:.55;animation:zn-halo 14s linear infinite}
.avatar::after{content:"";position:absolute;inset:-7px;border-radius:50%;border:1px solid rgba(220,235,250,.35);pointer-events:none}
.avatar img{display:block;width:100%;height:100%;object-fit:cover;border-radius:50%;-webkit-mask-image:radial-gradient(closest-side,#000 84%,rgba(0,0,0,0) 100%);mask-image:radial-gradient(closest-side,#000 84%,rgba(0,0,0,0) 100%);transition:transform .8s cubic-bezier(.22,1,.36,1)}
.avatar:hover img{transform:scale(1.04)}
@keyframes zn-halo{to{transform:rotate(360deg)}}

/* ---------- Công tắc ngôn ngữ VI | EN (assets/ngon-ngu.js) ---------- */
.nav-end{justify-self:end;display:flex;align-items:center;gap:16px}
.lang-switch{position:relative;display:inline-grid;grid-template-columns:1fr 1fr;align-items:center;width:74px;height:30px;padding:0;border:1.5px solid currentColor;border-radius:999px;background:none;color:inherit;font:500 11px var(--mono);cursor:pointer;isolation:isolate}
.lang-switch span{position:relative;z-index:1;text-align:center;transition:color .35s}
.lang-switch i{position:absolute;top:2px;left:2px;width:calc(50% - 2px);height:calc(100% - 4px);border-radius:999px;background:var(--green);transition:transform .45s cubic-bezier(.34,1.56,.64,1)}
.lang-switch.is-en i{transform:translateX(100%)}
.lang-switch span:first-child,.lang-switch.is-en span:last-child{color:#fff}
.lang-switch.is-en span:first-child{color:inherit}
.overlay-foot .lang-switch{color:var(--white)}
.hero-desc .slogan{display:inline-block;margin-top:2px;font-style:italic;color:var(--green-2);font-weight:700}

/* ---------- Ảnh đầu trang: bo tròn mềm, viền mờ dần hòa vào nền, quầng sáng nhẹ phía sau ---------- */
.hero-photo{overflow:visible;background:none;isolation:isolate}
.hero-photo::before{content:"";position:absolute;inset:6%;z-index:-1;border-radius:50%;background:radial-gradient(closest-side,rgba(23,163,95,.35),rgba(21,89,166,.22) 60%,transparent);filter:blur(26px)}
.hero-photo img,.hero-photo::after,.hero-photo .tint,.hero-photo .grain{border-radius:44%;-webkit-mask-image:radial-gradient(closest-side,#000 74%,rgba(0,0,0,0) 100%);mask-image:radial-gradient(closest-side,#000 74%,rgba(0,0,0,0) 100%)}
.hero-photo .badge-float{right:auto;left:50%;bottom:9%;transform:translateX(-50%);white-space:nowrap}
.physics.wait .chip{visibility:hidden}

/* ---------- Trang tuyến: dạng bài, bài đang soạn, cam kết, ô tiếp thị liên kết (assets/trang-tuyen.js) ---------- */
.tt-page{display:inline-block;position:relative;margin-top:18px;padding:8px 14px;border:1px solid var(--green);border-radius:999px;color:var(--green-2);text-decoration:none;font-size:12px}
.tt-types{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:var(--gut)}
.tt-type{padding:26px 24px;border-top:3px solid var(--green);background:rgba(255,255,255,.86);backdrop-filter:blur(6px)}
.tt-type .code{font:500 11px var(--mono);color:var(--green-2)}
.tt-type h3{font:800 clamp(24px,2.2vw,32px)/1 var(--display);text-transform:uppercase;margin:10px 0 12px}
.tt-type p{margin:0;color:var(--muted);line-height:1.6}
.tt-posts{list-style:none;margin:0;padding:0}
.tt-post{display:grid;grid-template-columns:170px 1fr auto;grid-template-areas:"meta h badge" "meta p badge";column-gap:var(--gut);row-gap:8px;padding:24px 0;border-top:1px solid var(--line);text-decoration:none;color:inherit;align-items:start;transition:padding .3s,background .3s}
a.tt-post:hover{background:rgba(242,247,252,.85);padding-left:14px}
.tt-post .meta{grid-area:meta;font:500 11px var(--mono);text-transform:uppercase;color:var(--muted);padding-top:6px}
.tt-post h3{grid-area:h;font:800 clamp(22px,2.3vw,34px)/1 var(--display);text-transform:uppercase;margin:0}
.tt-post p{grid-area:p;margin:0;color:var(--muted);line-height:1.6;max-width:720px}
.tt-post .badge{grid-area:badge;font:500 11px var(--mono);text-transform:uppercase;padding:5px 12px;border-radius:999px;background:var(--paper);color:var(--muted);border:1px solid var(--line);white-space:nowrap}
a.tt-post .badge{background:var(--green-soft);color:var(--green-2);border-color:transparent}
.tt-promise{padding:28px;border:1.5px solid var(--green);background:rgba(232,246,238,.88)}
.tt-promise ul{margin:0 0 18px;padding-left:20px;line-height:1.7}
.tt-promise li{margin:4px 0}
.tt-promise a{color:var(--green-2);font-size:12px}
.tt-note{font-size:12px;color:#b4561f;margin:0 0 12px}
.tt-disclose{margin:0 0 var(--gut)}
.tt-aff{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:var(--gut)}
.tt-slot{display:flex;flex-direction:column;gap:10px;padding:22px;border:1px solid var(--line);background:rgba(255,255,255,.9);text-decoration:none;color:inherit;transition:border-color .4s,transform .4s}
a.tt-slot:hover{border-color:var(--green);transform:translateY(-4px)}
.tt-slot h3{font:800 24px/1 var(--display);text-transform:uppercase;margin:0}
.tt-slot p{margin:0;color:var(--muted);flex:1}
.tt-slot .tag{align-self:flex-start;font:500 11px var(--mono);text-transform:uppercase;padding:4px 10px;border-radius:999px;background:var(--green-soft);color:var(--green-2)}
.tt-slot.empty{border-style:dashed}
.tt-slot.empty .tag{background:var(--paper);color:var(--muted)}
.tt-all{display:flex;flex-wrap:wrap;gap:10px;margin-top:var(--gut);align-items:center}
.tt-all .mono{font:500 11px var(--mono);opacity:.7;margin-right:6px;text-transform:uppercase}
.tt-all a{padding:7px 13px;border:1px solid rgba(255,255,255,.18);border-radius:999px;color:inherit;text-decoration:none;font-size:13px;transition:background .3s}
.tt-all a:hover,.tt-all a[aria-current]{background:rgba(23,163,95,.28)}
.tt-all a.home{margin-left:auto;border-color:var(--green)}
@media (max-width:760px){
  .tt-post{grid-template-columns:1fr;grid-template-areas:"meta" "h" "p" "badge"}
  .tt-post .badge{justify-self:start}
  .tt-all a.home{margin-left:0}
}