/* ============================================================
   CỘNG ĐỒNG GX VIỆT — giao diện
   ============================================================ */
:root{
  color-scheme:dark;
  --bg:#0a0a0a;--bg2:#0f0f0f;--card:#141414;--card2:#1b1b1b;--line:#242424;--line2:#353535;
  --text:#f3f3ee;--text2:#c9c9c2;--muted:#9d9d96;--dim:#7e7e77;
  --accent:#c6ff00;--ink:#0a0a0a;--acc:var(--accent);
  --red:#ff4d4d;--red-fg:#ff6b6b;--on-red:#000;--danger-line:#5c2222;--danger-fg:#ff7a7a;
  --nav-bg:rgba(10,10,10,.82);--glow2:rgba(255,255,255,.05);--pop-shadow:rgba(0,0,0,.55);
  --s1:#101010;--s2:#161616;--s3:#181818;--s4:#222;
  --cell:#121212;--cell-line:#1d1d1d;--sess:#161616;--sess-line:#222;
  --stroke-faint:#1f1f1f;--stroke-mid:#333;
  --adm-bg:#0c0c0c;--adm-top:rgba(12,12,12,.94);
  --input:#0d0d0d;--input-line:#2c2c2c;--placeholder:#55554f;
  --add-line:#2a2a2a;--add-fg:#3a3a3a;
  --dialog:#121212;--backdrop:rgba(0,0,0,.74);
  --fd:'Anton','Impact','Arial Narrow Bold',sans-serif;
  --fb:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  --ease:cubic-bezier(.2,.75,.2,1);
  --navh:76px;
}
/* Giao diện sáng — bật bằng data-theme="light" trên <html>; mặc định là tối */
:root[data-theme="light"]{
  color-scheme:light;
  --bg:#f4f3ee;--bg2:#ebeae4;--card:#ffffff;--card2:#efeee8;--line:#dedcd3;--line2:#c8c6bc;
  --text:#121210;--text2:#3b3b36;--muted:#5d5d56;--dim:#63635c;
  --acc:var(--accent-deep,#5b7300);
  --red:#e53935;--red-fg:#c62828;--on-red:#fff;--danger-line:#efb3b3;--danger-fg:#c62828;
  --nav-bg:rgba(244,243,238,.86);--glow2:rgba(0,0,0,.04);--pop-shadow:rgba(18,18,16,.16);
  --s1:#e9e8e2;--s2:#e6e5de;--s3:#e3e2db;--s4:#d8d7ce;
  --cell:#ffffff;--cell-line:#e4e3db;--sess:#fbfbf8;--sess-line:#e0dfd7;
  --stroke-faint:#e3e2da;--stroke-mid:#c4c3b9;
  --adm-bg:#efeee8;--adm-top:rgba(239,238,232,.94);
  --input:#ffffff;--input-line:#cfcdc4;--placeholder:#9b9a92;
  --add-line:#d3d2c9;--add-fg:#b3b2a9;
  --dialog:#ffffff;--backdrop:rgba(18,18,16,.45);
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--fb);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
::selection{background:var(--accent);color:var(--ink)}
:focus-visible{outline:2px solid var(--acc);outline-offset:3px}
.wrap{width:min(1320px,calc(100% - 40px));margin-inline:auto;padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px)}
a,button,summary,label{-webkit-tap-highlight-color:transparent}
.skip{position:absolute;left:-9999px;top:8px;z-index:999;background:var(--accent);color:var(--ink);padding:8px 14px}
.skip:focus{left:8px}
.muted{color:var(--muted)}
.grain::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:90;opacity:.07;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ---------- loader ---------- */
.boot{position:fixed;inset:0;display:grid;place-items:center;background:var(--bg);z-index:500;transition:opacity .5s,visibility .5s}
.boot span{font-family:var(--fd);font-size:64px;color:var(--acc);animation:bootP 1s ease-in-out infinite alternate}
.boot.gone{opacity:0;visibility:hidden}
@keyframes bootP{from{opacity:.25;transform:scale(.96)}to{opacity:1;transform:scale(1)}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 24px;font-weight:700;font-size:13px;letter-spacing:.14em;text-transform:uppercase;text-decoration:none;border:1px solid var(--text);background:transparent;color:var(--text);cursor:pointer;transition:background .25s,color .25s,border-color .25s,transform .25s;white-space:nowrap;border-radius:0}
@media (hover:hover){.btn:hover{background:var(--text);color:var(--bg)}}
.btn-acc{background:var(--accent);border-color:var(--accent);color:var(--ink)}
@media (hover:hover){.btn-acc:hover{background:var(--text);border-color:var(--text);color:var(--bg)}}
.btn .arr{transition:transform .25s}
@media (hover:hover){.btn:hover .arr{transform:translateX(4px)}}
.btn-sm{padding:10px 15px;font-size:11px;letter-spacing:.12em;gap:8px}
.btn-ghost{border-color:var(--line2);color:var(--muted)}
@media (hover:hover){.btn-ghost:hover{border-color:var(--text)}}
.btn-danger{border-color:var(--danger-line);color:var(--danger-fg)}
@media (hover:hover){.btn-danger:hover{background:var(--red);border-color:var(--red);color:var(--on-red)}}
.btn[disabled]{opacity:.4;pointer-events:none}
.btn:active,.chip:active,.dv-tabs button:active{opacity:.8}

/* ---------- nav ---------- */
/* Nền mờ đặt ở ::before: nếu đặt backdrop-filter lên chính .nav, menu mobile (position:fixed) bên trong sẽ bị giới hạn trong khung header thay vì phủ toàn màn hình */
.nav{position:fixed;inset:0 0 auto;z-index:60}
.nav::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--nav-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);opacity:0;transition:opacity .35s}
.nav.solid::before{opacity:1}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--navh)}
.logo{font-family:var(--fd);font-size:28px;line-height:1;letter-spacing:.02em;text-decoration:none;display:inline-flex;gap:.28em;align-items:baseline;text-transform:uppercase;white-space:nowrap}
.logo b{color:var(--acc);font-weight:400}
.logo small{font-family:var(--fb);font-size:11px;font-weight:700;letter-spacing:.25em;color:var(--muted);margin-left:6px}
.nav-links{display:flex;gap:30px;list-style:none;margin:0;padding:0}
.nav-links a{text-decoration:none;font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);transition:color .2s;position:relative}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:2px;background:var(--accent);transition:right .3s var(--ease)}
.nav-links .m-cta{display:none}
@media (hover:hover){.nav-links a:hover{color:var(--text)}}
.nav-links a[aria-current]{color:var(--text)}
.nav-links a[aria-current]::after{right:0}
/* menu con của mục Bộ môn: bảng xổ xuống trên máy tính, danh sách mở/đóng trong menu điện thoại */
.nav-links .has-sub{position:relative;display:flex;align-items:center;gap:6px}
.sub-btn{display:grid;place-items:center;width:24px;height:24px;margin:-4px -8px -4px 0;padding:0;border:0;background:none;color:var(--muted);cursor:pointer;transition:transform .3s var(--ease),color .2s}
.sub-btn svg{width:14px;height:14px}
.has-sub.open>.sub-btn{transform:rotate(180deg);color:var(--text)}
.sub{position:absolute;top:calc(100% + 26px);left:-22px;z-index:2;width:330px;margin:0;padding:8px;list-style:none;background:var(--card);border:1px solid var(--line2);box-shadow:0 26px 60px var(--pop-shadow);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .2s,transform .3s var(--ease),visibility .2s}
.sub{max-height:calc(100vh - var(--navh) - 40px);max-height:calc(100dvh - var(--navh) - 40px);overflow-y:auto;overscroll-behavior:contain}
.sub::before{content:"";position:absolute;left:0;right:0;bottom:100%;height:28px} /* cầu nối: rê chuột từ chữ xuống bảng không bị đóng */
.has-sub.open>.sub{opacity:1;visibility:visible;transform:none}
@media (hover:hover) and (min-width:981px){
  .sub-btn:hover{color:var(--text)}
  .has-sub:not(.hold):hover>.sub{opacity:1;visibility:visible;transform:none}
  .has-sub:not(.hold):hover>.sub-btn{transform:rotate(180deg);color:var(--text)}
}
.nav-links .sub a{display:grid;grid-template-columns:34px minmax(0,1fr);gap:14px;align-items:center;padding:9px 10px;font-family:var(--fb);font-size:14px;font-weight:600;line-height:1.2;letter-spacing:0;text-transform:none;color:var(--text);transition:background .2s}
.nav-links .sub a::after{display:none}
.nav-links .sub a:focus-visible{outline-offset:-2px}
.sub .ico{width:34px;height:34px}
.sub b{display:block;font-family:var(--fd);font-weight:400;font-size:21px;line-height:1.15;letter-spacing:.02em;text-transform:uppercase;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sub small{display:block;margin-top:2px;font-size:10.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
@media (hover:hover){.nav-links .sub a:hover{background:color-mix(in srgb,var(--c) 14%,transparent)}}
.nav-links .sub a[aria-current]{background:color-mix(in srgb,var(--c) 18%,transparent);box-shadow:inset 3px 0 0 var(--c)}
/* máy tính: mỗi bộ môn một dòng gọn để danh sách dài vẫn vừa màn hình */
@media (min-width:981px){
  .nav-links .sub a{grid-template-columns:30px minmax(0,1fr);gap:12px;padding:7px 10px}
  .sub .ico{width:30px;height:30px}
  .sub a>span:last-child{display:flex;align-items:baseline;justify-content:space-between;gap:12px;min-width:0}
  .sub b{font-size:20px}
  .sub small{flex:none;margin-top:0}
}
.sub-h{padding:12px 10px 4px;font-size:10.5px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:var(--acc)}
.sub-h:not(:first-child){margin-top:6px;border-top:1px solid var(--line)}
.nav-links .sub-all a{display:flex;justify-content:space-between;margin-top:6px;padding:13px 10px 9px;border-top:1px solid var(--line);font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
@media (hover:hover){.nav-links .sub-all a:hover{background:none;color:var(--text)}}
@media (hover:hover){.nav-links a:hover::after{right:0}}
.nav-r{display:flex;align-items:center;gap:14px}
.burger{display:none;width:46px;height:46px;border:1px solid var(--line2);background:transparent;cursor:pointer;position:relative}
.burger i{position:absolute;left:12px;right:12px;height:2px;background:var(--text);transition:transform .3s,top .3s,opacity .2s}
.burger i:nth-child(1){top:16px}.burger i:nth-child(2){top:22px}.burger i:nth-child(3){top:28px}
.menu-open .burger i:nth-child(1){top:22px;transform:rotate(45deg)}
.menu-open .burger i:nth-child(2){opacity:0}
.menu-open .burger i:nth-child(3){top:22px;transform:rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;padding:130px 0 90px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(60% 55% at 78% 30%,color-mix(in srgb,var(--accent) 17%,transparent),transparent 70%),
  radial-gradient(40% 40% at 5% 95%,var(--glow2),transparent 70%)}
.hero::after{content:"";position:absolute;inset:0;opacity:.5;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:88px 88px;-webkit-mask-image:radial-gradient(70% 60% at 60% 40%,#000,transparent 75%);mask-image:radial-gradient(70% 60% at 60% 40%,#000,transparent 75%)}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:56px;align-items:center}
.kicker{display:inline-flex;align-items:center;gap:12px;font-size:12px;font-weight:600;letter-spacing:.3em;text-transform:uppercase;color:var(--muted)}
.dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 color-mix(in srgb,var(--accent) 60%,transparent);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 12px transparent}100%{box-shadow:0 0 0 0 transparent}}
.hero-title{font-family:var(--fd);font-weight:400;font-size:clamp(64px,10.6vw,176px);line-height:.98;text-transform:uppercase;margin:26px 0 30px;letter-spacing:.005em}
.hero-title .ln{display:block}
.hero-title .ln i{display:inline-block;font-style:normal;animation:lnUp 1.1s var(--ease) both;animation-delay:calc(var(--i) * .12s + .15s)}
.hero-title .l2 i{color:transparent;-webkit-text-stroke:2px var(--text)}
.hero-title .l3 i{color:var(--accent)}
@keyframes lnUp{from{opacity:0;transform:translateY(45%) skewY(4deg)}to{opacity:1;transform:none}}
.hero-sub{max-width:560px;font-size:17px;color:var(--text2);margin:0 0 36px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{display:flex;flex-wrap:wrap;gap:20px 56px;margin-top:64px;padding-top:28px;border-top:1px solid var(--line);max-width:720px}
.stat b{display:block;font-family:var(--fd);font-weight:400;font-size:clamp(44px,5vw,64px);line-height:1}
.stat b sup{font-size:.45em;color:var(--acc);vertical-align:top;margin-left:2px}
.stat span{font-size:11px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--muted)}
.hero-vis{position:relative;aspect-ratio:3/4;max-height:72vh;width:100%;justify-self:end}
.hero-vis .frame{position:absolute;inset:0;overflow:hidden;background:#111;border:1px solid var(--line);clip-path:polygon(0 0,100% 0,100% 88%,86% 100%,0 100%)}
.hero-vis::before{content:"";position:absolute;inset:18px -18px -18px 18px;border:2px solid var(--accent);clip-path:polygon(0 0,100% 0,100% 88%,86% 100%,0 100%)}
.hv-img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.12) brightness(.9)}
.hv-mono{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--fd);font-size:clamp(140px,20vw,330px);line-height:.8;text-transform:uppercase;user-select:none}
.hv-mono span{grid-area:1/1}
.hv-mono span:first-child{color:transparent;-webkit-text-stroke:2px rgba(255,255,255,.16);transform:translate(-4%,-4%)}
.hv-mono span:last-child{color:var(--accent);mix-blend-mode:normal;transform:translate(4%,4%);text-shadow:0 0 80px color-mix(in srgb,var(--accent) 45%,transparent)}
.eq{position:absolute;left:22px;right:22px;bottom:22px;height:70px;display:flex;align-items:flex-end;gap:5px;z-index:2}
.eq i{flex:1;height:100%;background:#f3f3ee;opacity:.9;transform-origin:bottom;animation:eq var(--d,1s) ease-in-out infinite alternate;animation-delay:var(--dl,0s)}
.eq i:nth-child(3n){background:var(--accent)}
@keyframes eq{from{transform:scaleY(.12)}to{transform:scaleY(var(--h,1))}}
.badge{position:absolute;width:150px;height:150px;left:-60px;bottom:16%;z-index:3;color:var(--text);border-radius:50%;background:var(--bg)}
.badge svg{width:100%;height:100%;animation:spin 16s linear infinite}
.badge text{font-family:var(--fb);font-size:15.5px;font-weight:700;letter-spacing:.2em;fill:currentColor}
.badge b{position:absolute;inset:38px;border-radius:50%;background:var(--accent);color:var(--ink);display:grid;place-items:center;font-size:28px;font-weight:800}
@keyframes spin{to{transform:rotate(360deg)}}
.scroll-cue{position:absolute;left:50%;bottom:22px;z-index:2;display:flex;flex-direction:column;align-items:center;gap:10px;font-size:10px;letter-spacing:.3em;color:var(--dim);text-transform:uppercase;transform:translateX(-50%)}
.scroll-cue i{width:1px;height:42px;background:linear-gradient(var(--accent),transparent);animation:cue 2s ease-in-out infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- marquee ---------- */
.mq-wrap{position:relative;height:210px;overflow:hidden;z-index:3;margin:-30px 0}
.marquee{position:absolute;left:-4%;right:-4%;top:50%;padding:18px 0;overflow:hidden}
.m1{background:var(--accent);color:var(--ink);transform:translateY(-50%) rotate(-3deg);z-index:2}
.m2{background:var(--s2);color:var(--text);transform:translateY(-50%) rotate(2.5deg);border-block:1px solid var(--line)}
.mq-track{display:flex;width:max-content;animation:mq 38s linear infinite}
.m2 .mq-track{animation-direction:reverse;animation-duration:46s}
.mq-track span{display:inline-flex;align-items:center;gap:30px;padding-right:30px;font-family:var(--fd);font-size:42px;line-height:1;text-transform:uppercase;white-space:nowrap}
.m2 .mq-track span{color:transparent;-webkit-text-stroke:1.2px var(--text)}
.mq-track svg{width:26px;height:26px;flex:none}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- sections ---------- */
.sec{position:relative;padding:clamp(90px,11vw,160px) 0}
.sec-head{display:flex;align-items:center;gap:14px;font-size:12px;font-weight:600;letter-spacing:.3em;text-transform:uppercase;color:var(--muted);margin-bottom:22px}
.sec-head b{color:var(--acc);font-weight:700}
.sec-head::after{content:"";width:90px;height:1px;background:var(--line2)}
.sec-title{font-family:var(--fd);font-weight:400;text-transform:uppercase;font-size:clamp(46px,7vw,108px);line-height:1.14;margin:0;letter-spacing:.005em}
.sec-title em,.acc{font-style:normal;color:var(--acc)}
.sec-title .o{color:transparent;-webkit-text-stroke:1.5px var(--text)}
.sec-lead{max-width:520px;color:var(--muted);font-size:16.5px;margin:0}
.sec-top{display:flex;justify-content:space-between;align-items:flex-end;gap:32px 60px;flex-wrap:wrap;margin-bottom:60px}

/* about */
.about{overflow:hidden}
.bigword{position:absolute;right:-2vw;top:40px;font-family:var(--fd);font-size:22vw;line-height:.8;color:transparent;-webkit-text-stroke:1px var(--stroke-faint);pointer-events:none;user-select:none;text-transform:uppercase;white-space:nowrap}
.about-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:40px 80px;align-items:end}
.about-text p{font-size:18px;color:var(--text2);margin:0 0 18px;white-space:pre-line}
.pillars{position:relative;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0;margin-top:80px;border-top:1px solid var(--line)}
.pillar{padding:34px 30px 10px 0;border-right:1px solid var(--line);margin-right:30px}
.pillar:last-child{border-right:0;margin-right:0}
.pillar small{font-family:var(--fd);font-size:15px;color:var(--acc);letter-spacing:.05em}
.pillar h3{font-family:var(--fd);font-weight:400;font-size:34px;text-transform:uppercase;margin:10px 0 10px;line-height:1.05}
.pillar p{color:var(--muted);margin:0;font-size:15px;white-space:pre-line}

/* classes */
/* đường kẻ giữa các thẻ vẽ bằng outline, nên ô trống cuối hàng không bị tô xám */
.cls-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1px;padding:1px}
.cls-grid.sm{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
/* tiêu đề nhóm bộ môn theo studio */
.cls-gh{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px 16px;margin:0 0 18px;font-family:var(--fd);font-weight:400;font-size:clamp(30px,3.4vw,44px);line-height:1.1;text-transform:uppercase}
.cls-gh span::before{content:"";display:inline-block;width:26px;height:4px;margin:0 14px .3em 0;background:var(--accent);vertical-align:middle}
.cls-gh small{font-family:var(--fb);font-size:11px;font-weight:700;letter-spacing:.2em;color:var(--muted)}
.cls-gh~.cls-gh{margin-top:clamp(48px,6vw,80px)}
.cls{position:relative;display:flex;flex-direction:column;min-height:380px;padding:30px 28px 26px;background:var(--bg);outline:1px solid var(--line);overflow:hidden;cursor:pointer;text-align:left;border:0;color:var(--text);isolation:isolate;transition:color .35s}
.cls::before{content:"";position:absolute;inset:auto 0 0;height:0;background:var(--c);transition:height .5s var(--ease);z-index:-1}
.cls:focus-visible{color:#0a0a0a}
@media (hover:hover){.cls:hover{color:#0a0a0a}}
.cls:focus-visible::before{height:100%}
@media (hover:hover){.cls:hover::before{height:100%}}
.cls-ico{width:58px;height:58px;display:grid;place-items:center;background:var(--c);color:#0a0a0a;transition:background .35s,color .35s}
@media (hover:hover){.cls:hover .cls-ico{background:#0a0a0a;color:var(--c)}}
.cls-idx{position:absolute;top:28px;right:28px;font-family:var(--fd);font-size:15px;color:var(--dim);transition:color .35s}
@media (hover:hover){.cls:hover .cls-idx{color:rgba(0,0,0,.55)}}
.cls-name{font-family:var(--fd);font-weight:400;font-size:46px;line-height:1;text-transform:uppercase;margin:auto 0 12px;padding-top:40px}
.cls-desc{font-size:14.5px;color:var(--muted);margin:0;transition:color .35s;white-space:pre-line}
@media (hover:hover){.cls:hover .cls-desc{color:rgba(0,0,0,.78)}}
.cls-meta{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:22px;padding-top:16px;border-top:1px solid var(--line);font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;transition:border-color .35s}
@media (hover:hover){.cls:hover .cls-meta{border-color:rgba(0,0,0,.2)}}
.int{display:inline-flex;gap:3px;align-items:flex-end}
.int i{width:5px;height:14px;background:currentColor;opacity:.22}
.int i.on{opacity:1}
.cls-go{position:absolute;right:26px;bottom:74px;opacity:0;transform:translate(-8px,8px);transition:.35s var(--ease);font-size:26px}
@media (hover:hover){.cls:hover .cls-go{opacity:1;transform:none}}
/* thẻ có ảnh bìa: ảnh phủ kín thẻ, lớp phủ tối giữ chữ dễ đọc ở cả giao diện sáng và tối; rê chuột vẫn tô màu bộ môn như cũ (lớp tô nằm trên ảnh) */
.cls-img{position:absolute;inset:0;z-index:-2;background:#0a0a0a}
.cls-img img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.cls-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,10,10,.3) 0%,rgba(10,10,10,.5) 40%,rgba(10,10,10,.92) 100%)}
.cls.has-img{color:#f3f3ee}
.cls.has-img .cls-desc{color:rgba(243,243,238,.84)}
.cls.has-img .cls-idx{color:rgba(243,243,238,.78)}
.cls.has-img .cls-meta{border-color:rgba(243,243,238,.28)}
.cls.has-img:focus-visible{color:#0a0a0a}
.cls.has-img:focus-visible .cls-desc{color:rgba(0,0,0,.78)}
.cls.has-img:focus-visible .cls-idx{color:rgba(0,0,0,.55)}
.cls.has-img:focus-visible .cls-meta{border-color:rgba(0,0,0,.2)}
@media (hover:hover){
  .cls.has-img:hover{color:#0a0a0a}
  .cls.has-img:hover .cls-desc{color:rgba(0,0,0,.78)}
  .cls.has-img:hover .cls-idx{color:rgba(0,0,0,.55)}
  .cls.has-img:hover .cls-meta{border-color:rgba(0,0,0,.2)}
  .cls:hover .cls-img img{transform:scale(1.06)}
}

/* schedule */
.sched{background:var(--bg2);border-block:1px solid var(--line)}
.week-box{display:flex;flex-direction:column;align-items:flex-end;text-align:right;gap:2px}
.week-box span{font-size:12px;font-weight:700;letter-spacing:.25em;text-transform:uppercase;color:var(--muted)}
.week-box b{font-family:var(--fd);font-weight:400;font-size:clamp(38px,4.6vw,62px);line-height:1;color:var(--acc)}
.week-box small{font-size:12px;letter-spacing:.2em;color:var(--dim)}
.filters{display:flex;flex-wrap:wrap;gap:10px 28px;align-items:center;margin-bottom:26px}
/* chọn studio trên lịch tập */
.st-tabs{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:6px;margin:0 0 26px}
.st-tabs button{display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:4px 14px;padding:16px 20px;background:var(--s3);border:1px solid var(--line);border-top:3px solid var(--line2);color:var(--muted);text-align:left;cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.st-tabs b{font-family:var(--fd);font-weight:400;font-size:clamp(24px,2.6vw,34px);line-height:1.05;letter-spacing:.02em;text-transform:uppercase}
.st-tabs small{font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;white-space:nowrap}
@media (hover:hover){.st-tabs button:hover{color:var(--text);border-top-color:var(--text)}}
.st-tabs button[aria-selected="true"]{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.chips>span{font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);margin-right:4px}
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid var(--line2);background:transparent;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;cursor:pointer;color:var(--muted);transition:.2s}
.chip i{width:9px;height:9px;border-radius:50%;background:var(--c,var(--text))}
@media (hover:hover){.chip:hover{border-color:var(--text);color:var(--text)}}
.chip.on{background:var(--text);border-color:var(--text);color:var(--bg)}
.sg{display:grid;grid-template-columns:92px repeat(7,minmax(0,1fr));gap:6px}
.sg-corner{background:transparent}
.sg-day{display:flex;flex-direction:column;align-items:center;gap:0;padding:12px 6px;background:var(--s3);border-top:3px solid var(--line2);text-align:center}
.sg-day span{font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
.sg-day b{font-family:var(--fd);font-weight:400;font-size:22px;line-height:1.1;color:var(--muted)}
.sg-day.today{border-top-color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,var(--s3))}
.sg-day.today b{color:var(--acc)}
.sg-time{display:flex;flex-direction:column;justify-content:center;align-items:center;background:var(--s3);font-family:var(--fd);font-size:22px;line-height:1.15;color:var(--text);padding:8px 4px}
.sg-time b{font-weight:400}
.sg-time b+b{color:var(--muted)}
.sg-cell{position:relative;min-height:122px;background:var(--cell);border:1px solid var(--cell-line);padding:7px;display:flex}
.sg-cell.today{background:color-mix(in srgb,var(--accent) 4%,var(--cell));border-color:color-mix(in srgb,var(--accent) 22%,var(--cell-line))}
.sg-div{grid-column:1/-1;display:flex;align-items:center;justify-content:center;gap:16px;padding:12px;background:var(--accent);color:var(--ink);font-family:var(--fd);font-size:22px;letter-spacing:.06em;text-transform:uppercase;margin:8px 0}
.sess{position:relative;flex:1;display:flex;flex-direction:column;gap:6px;padding:10px 10px 11px;background:linear-gradient(160deg,color-mix(in srgb,var(--c) 16%,var(--sess)),var(--sess) 70%);border:1px solid color-mix(in srgb,var(--c) 30%,var(--sess-line));border-left:3px solid var(--c);transition:opacity .3s,transform .3s,filter .3s;min-width:0;text-align:left;color:var(--text)}
.sess-tag{display:flex;align-items:center;gap:8px;min-width:0}
.ico{flex:none;width:26px;height:26px;display:grid;place-items:center;background:var(--c);color:#0a0a0a}
/* logo bộ môn: nền tối cố định để logo trắng hay logo màu đều đọc được ở cả giao diện sáng và tối */
.logo-tile{flex:none;display:flex;align-items:center;justify-content:center;height:28px;max-width:100%;min-width:0;padding:4px 9px;background:#0d0d0d;box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--c,#333) 55%,#0d0d0d)}
.logo-tile img{height:100%;width:auto;max-width:100%;object-fit:contain}
.sess .logo-tile{height:34px}
.dv-item .logo-tile{height:36px}
.sess-name{font-size:12.5px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;line-height:1.2;overflow:hidden;text-overflow:ellipsis}
.sess.long .sess-tag{flex-direction:column;align-items:flex-start;gap:6px}
.sess.long .sess-name{max-width:100%}
@media (max-width:1180px){.sess.long .sess-name{font-size:11px;letter-spacing:.02em}}
.sess-time{font-family:var(--fd);font-size:21px;line-height:1;margin-top:auto;white-space:nowrap}
.sess-coach{font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sess-note{align-self:flex-start;font-size:10px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;background:var(--text);color:var(--bg);padding:2px 6px}
.live{position:absolute;top:8px;right:8px;display:inline-flex;align-items:center;gap:5px;font-size:9.5px;font-weight:800;letter-spacing:.14em;color:var(--acc)}
.live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 1.6s infinite}
.sess.dim,.dv-item.dim{opacity:.13;filter:grayscale(1)}
.dv{display:none}
.dv-tabs{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin-bottom:14px;position:sticky;top:var(--navh);z-index:5;background:var(--bg2);padding:8px 0}
.dv-tabs button{display:flex;flex-direction:column;align-items:center;gap:0;padding:9px 0 8px;background:var(--s3);border:1px solid var(--line);cursor:pointer;color:var(--muted)}
.dv-tabs button span{font-size:11px;font-weight:800;letter-spacing:.08em}
.dv-tabs button b{font-family:var(--fd);font-weight:400;font-size:21px;line-height:1.1}
.dv-tabs button.today{border-color:color-mix(in srgb,var(--accent) 50%,transparent)}
.dv-tabs button[aria-selected="true"]{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.dv-item{display:grid;grid-template-columns:86px minmax(0,1fr);gap:16px;align-items:center;padding:16px;margin-bottom:8px;background:var(--card);border:1px solid var(--line);border-left:3px solid var(--c);transition:opacity .3s}
.dv-item .t{font-family:var(--fd);font-size:28px;line-height:1}
.dv-item .t small{display:block;font-size:16px;color:var(--muted);margin-top:4px}
.dv-item .n{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:800;letter-spacing:.05em;text-transform:uppercase}
.dv-item .c{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:6px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.dv-item .live{position:static}
.dv-empty{padding:34px 18px;text-align:center;color:var(--muted);border:1px dashed var(--line2);margin:0}
.sched-foot{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-top:30px;color:var(--muted);font-size:14px}
.legend{display:flex;flex-wrap:wrap;gap:8px 18px}
.legend span{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.legend i{width:10px;height:10px;background:var(--c)}

/* coaches */
.co-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px}
.co-grid.c3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.co-grid.c1,.co-grid.c2{grid-template-columns:repeat(auto-fill,minmax(280px,420px))}
.coach{position:relative;background:var(--card);border:1px solid var(--line);display:flex;flex-direction:column;transition:border-color .35s,transform .45s var(--ease)}
@media (hover:hover){.coach:hover{border-color:var(--line2);transform:translateY(-6px)}}
.coach-photo{position:relative;aspect-ratio:4/5;overflow:hidden;background:#181818}
.coach-photo img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.06);transform:scale(1.02);transition:filter .7s,transform 1s var(--ease)}
@media (hover:hover){.coach:hover .coach-photo img{filter:none;transform:scale(1.07)}}
.coach-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.88))}
.coach-mono{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--fd);font-size:180px;line-height:1;color:transparent;-webkit-text-stroke:2px rgba(255,255,255,.14);background:radial-gradient(80% 60% at 30% 20%,color-mix(in srgb,var(--c) 38%,transparent),transparent 70%),repeating-linear-gradient(135deg,#161616 0 14px,#131313 14px 28px);text-transform:uppercase}
.coach-over{position:absolute;left:24px;right:24px;bottom:20px;z-index:2;color:#f3f3ee}
.coach-role{font-size:11px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--accent)}
.coach-name{font-family:var(--fd);font-weight:400;font-size:clamp(50px,5vw,68px);line-height:.95;margin:6px 0 0;text-transform:uppercase}
.coach-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:16px;flex:1}
.coach-bio{margin:0;color:var(--muted);font-size:15px;white-space:pre-line}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;border:1px solid color-mix(in srgb,var(--c) 45%,transparent);color:var(--text);background:color-mix(in srgb,var(--c) 10%,transparent)}
.tag i{width:7px;height:7px;background:var(--c)}
.coach-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:auto;padding-top:6px;border-top:1px solid var(--line);font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.coach-foot button,.coach-foot a{background:none;border:0;padding:12px 0;cursor:pointer;color:var(--text);font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;text-decoration:none}
@media (hover:hover){.coach-foot button:hover,.coach-foot a:hover{color:var(--acc)}}

/* join */
.join{overflow:hidden;background:var(--accent);color:var(--ink)}
.join::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(-45deg,rgba(0,0,0,.05) 0 2px,transparent 2px 22px)}
.join-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:50px 80px;align-items:center}
.join .sec-head{color:rgba(0,0,0,.6)}
.join .sec-head b{color:var(--ink)}
.join .sec-head::after{background:rgba(0,0,0,.25)}
.join .sec-title{font-size:clamp(54px,8.5vw,136px);line-height:1.12}
.join .sec-title em{color:transparent;-webkit-text-stroke:2px var(--ink)}
.join p{font-size:18px;max-width:560px;margin:26px 0 34px;white-space:pre-line}
.join .btn{border-color:var(--ink);color:var(--ink)}
@media (hover:hover){.join .btn:hover{background:var(--ink);color:var(--accent)}}
.join .btn-acc{background:var(--ink);color:var(--accent)}
@media (hover:hover){.join .btn-acc:hover{background:transparent;color:var(--ink)}}
.qr-card{justify-self:end;width:min(340px,100%);background:#fff;color:#0a0a0a;padding:22px;box-shadow:16px 16px 0 var(--ink);transform:rotate(2deg);transition:transform .4s var(--ease)}
@media (hover:hover){.qr-card:hover{transform:rotate(0)}}
.qr-card img{width:100%;aspect-ratio:1;object-fit:contain;image-rendering:auto}
.qr-card p{margin:14px 0 0;font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;text-align:center}
.join-big{justify-self:end;font-family:var(--fd);font-size:clamp(120px,18vw,260px);line-height:.8;color:transparent;-webkit-text-stroke:2px var(--ink);text-transform:uppercase}

/* contact */
.ct-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:40px 70px;align-items:stretch}
.ct-list{display:flex;flex-direction:column}
.ct-row{display:grid;grid-template-columns:130px minmax(0,1fr);gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}
.ct-row:first-child{border-top:1px solid var(--line)}
.ct-row>span{font-size:11px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--dim);padding-top:5px}
.ct-row div{font-size:19px;font-weight:600;line-height:1.45}
.ct-row a{text-decoration:none;border-bottom:1px solid var(--line2);transition:border-color .2s,color .2s}
@media (hover:hover){.ct-row a:hover{color:var(--acc);border-color:var(--acc)}}
.ct-row .big{font-family:var(--fd);font-weight:400;font-size:34px;letter-spacing:.02em}
.socials{display:flex;flex-wrap:wrap;gap:8px 18px}
.ct-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.map{position:relative;min-height:420px;border:1px solid var(--line);background:var(--card2);overflow:hidden}
.map iframe{position:absolute;inset:0;width:100%;height:100%;border:0;filter:invert(.92) hue-rotate(180deg) grayscale(.6) contrast(.95)}
.map-ph{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:30px;font-family:var(--fd);font-size:44px;line-height:1.05;text-transform:uppercase;color:transparent;-webkit-text-stroke:1px var(--line2)}

/* form liên hệ: bong bóng chat nổi + khung chat */
.chat{position:fixed;right:max(20px,env(safe-area-inset-right));bottom:max(20px,env(safe-area-inset-bottom));z-index:56}
body:not(.pub) .chat{display:none}
.chat-fab{display:inline-flex;align-items:center;gap:10px;height:56px;padding:0 22px 0 18px;border:0;border-radius:28px;background:var(--accent);color:var(--ink);font-weight:800;font-size:13px;letter-spacing:.12em;text-transform:uppercase;cursor:pointer;box-shadow:0 10px 30px var(--pop-shadow),0 0 0 0 color-mix(in srgb,var(--accent) 55%,transparent);animation:fabPulse 2.8s 2s 3;transition:transform .25s var(--ease)}
@keyframes fabPulse{70%{box-shadow:0 10px 30px var(--pop-shadow),0 0 0 16px transparent}100%{box-shadow:0 10px 30px var(--pop-shadow),0 0 0 0 transparent}}
@media (hover:hover){.chat-fab:hover{transform:translateY(-3px)}}
html.chat-open .chat{z-index:80}
.chat-fab:focus-visible{outline:3px solid var(--text);outline-offset:3px}
.chat-ico{position:relative;display:grid;place-items:center;width:24px;height:24px}
.chat-ico svg{grid-area:1/1;width:24px;height:24px;transition:transform .3s var(--ease),opacity .2s}
.chat-ico .i-close{opacity:0;transform:rotate(-90deg)}
.chat-open .chat-ico .i-chat{opacity:0;transform:rotate(90deg)}
.chat-open .chat-ico .i-close{opacity:1;transform:none}
.chat-panel{position:absolute;right:0;bottom:72px;width:min(390px,calc(100vw - 32px));max-height:min(660px,calc(100vh - 120px));max-height:min(660px,calc(100dvh - 120px));display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line2);box-shadow:0 30px 70px var(--pop-shadow);transform-origin:bottom right;animation:chatIn .3s var(--ease)}
.chat-panel[hidden]{display:none}
@keyframes chatIn{from{opacity:0;transform:translateY(14px) scale(.96)}}
.chat-head{display:flex;align-items:center;gap:14px;padding:16px 16px 16px 18px;background:var(--accent);color:var(--ink)}
.chat-head>div{flex:1;min-width:0}
.chat-head b{display:block;font-family:var(--fd);font-weight:400;font-size:25px;line-height:1.1;text-transform:uppercase;overflow-wrap:anywhere}
.chat-head small{display:block;margin-top:2px;font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;opacity:.75}
.chat-av{flex:none;display:grid;place-items:center;width:42px;height:42px;border-radius:50%;background:var(--ink);color:var(--accent);font-family:var(--fd);font-size:18px}
.chat-x{flex:none;display:grid;place-items:center;width:44px;height:44px;margin:-6px -6px -6px 0;padding:0;border:0;background:none;color:inherit;cursor:pointer}
.chat-x svg{width:22px;height:22px}
@media (hover:hover){.chat-x:hover{background:rgba(0,0,0,.12)}}
.chat-body{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:18px 18px 8px;background:var(--bg2)}
.chat-msg{display:block;max-width:92%;margin:0 0 14px;padding:11px 14px;background:var(--card2);border:1px solid var(--line);border-radius:4px 16px 16px 16px;font-size:14.5px;line-height:1.5;color:var(--text);white-space:pre-line;overflow-wrap:anywhere}
.chat-msg.me{margin-left:auto;background:var(--accent);border-color:var(--accent);color:var(--ink);border-radius:16px 4px 16px 16px}
.cf-done{outline:none;padding-bottom:10px}
.cf-done .btn{margin-top:4px}
.cf{padding:0}
.cf .f{margin-bottom:12px}
.cf-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 10px}
.cf textarea.in{min-height:84px}
.cf-hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.ck-line.cf-ok{align-items:flex-start;color:var(--text2);margin:2px 0 8px;font-size:13px;line-height:1.5}
.ck-line.cf-ok input{width:22px;height:22px;margin:0}
.cf-send{width:100%}
.cf-note{display:block;margin:10px 0 12px;font-size:12px;line-height:1.5;color:var(--muted);text-align:center}
@media (max-width:700px){
  .chat{right:max(14px,env(safe-area-inset-right));bottom:calc(70px + env(safe-area-inset-bottom))}
  .chat-fab{height:52px;padding:0 18px 0 14px}
  .chat-open .chat-fab{display:none}
  .chat-panel{position:fixed;inset:0;width:auto;max-height:none;border:0;box-shadow:none;z-index:70;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}
  .chat-head{padding-top:calc(16px + env(safe-area-inset-top))}
  html.chat-open,html.chat-open body{overflow:hidden}
}
@media (max-width:360px){.cf-row{grid-template-columns:1fr}}
@media print{.chat{display:none!important}}

/* footer */
.foot{padding:70px 0 40px;border-top:1px solid var(--line);overflow:hidden}
/* cỡ chữ theo độ dài tên (--len) để tên dài vẫn nằm gọn trên một dòng */
.foot-big{font-family:var(--fd);font-size:clamp(30px,min(calc(170vw / var(--len,10)),calc(2400px / var(--len,10))),250px);line-height:.85;text-transform:uppercase;white-space:nowrap;color:transparent;-webkit-text-stroke:1px var(--stroke-mid);margin:0 0 40px;letter-spacing:.01em;user-select:none}
.foot-big b{font-weight:400;color:var(--acc);-webkit-text-stroke:0}
.foot-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px 30px;font-size:13px;color:var(--muted)}
.foot-row nav{display:flex;flex-wrap:wrap;gap:8px 22px}
.foot-row a{text-decoration:none;display:inline-block;padding:8px 0}
.foot-note{margin:22px 0 0;font-size:12px;line-height:1.5;color:var(--dim)}
@media (hover:hover){.foot-row a:hover{color:var(--acc)}}
.mbar{display:none}

/* ---------- trang giới thiệu từng bộ môn (#bo-mon/<mã>) ---------- */
/* màu của bộ môn thay cho màu nhấn trong phạm vi trang; --accent-hi / --accent-deep là bản đủ tương phản để làm chữ */
.cls{text-decoration:none}
.cp{--acc:var(--accent-hi)}
:root[data-theme="light"] .cp{--acc:var(--accent-deep)}
.cp .sec{padding:clamp(72px,8.5vw,130px) 0}
.cp .sec-title{font-size:clamp(42px,6vw,92px)}
.cp-hero{position:relative;padding:calc(var(--navh) + 40px) 0 clamp(64px,7vw,96px);overflow:hidden}
.cp-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(55% 60% at 80% 35%,color-mix(in srgb,var(--accent) 18%,transparent),transparent 70%)}
.cp-hero::after{content:"";position:absolute;inset:0;opacity:.5;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:88px 88px;-webkit-mask-image:radial-gradient(70% 60% at 65% 40%,#000,transparent 75%);mask-image:radial-gradient(70% 60% at 65% 40%,#000,transparent 75%)}
.cp-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:40px 64px;align-items:center}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:0 12px;margin:0 0 22px;padding:0;list-style:none;font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.crumbs li+li::before{content:"/";margin-right:12px;color:var(--dim)}
.crumbs a{text-decoration:none;display:inline-block;padding:10px 0}
@media (hover:hover){.crumbs a:hover{color:var(--acc)}}
.crumbs [aria-current]{color:var(--text);font-weight:700}
.cp-kicker{display:flex;align-items:center;gap:16px;font-size:12px;font-weight:700;letter-spacing:.26em;text-transform:uppercase;color:var(--muted)}
.cp-kicker .cp-ico{width:56px;height:56px;display:grid;place-items:center;background:var(--accent);color:var(--ink)}
.cp-kicker b{color:var(--acc);font-weight:700}
.cp-kicker .logo-tile{height:56px;padding:10px 14px;box-shadow:none}
.cp-title{font-family:var(--fd);font-weight:400;font-size:clamp(60px,10.5vw,176px);line-height:1;text-transform:uppercase;margin:24px 0 18px;letter-spacing:.005em;overflow-wrap:anywhere}
.cp-headline{font-size:clamp(20px,2.1vw,27px);font-weight:700;line-height:1.35;margin:0 0 14px}
.cp-lead{max-width:600px;color:var(--text2);font-size:17px;margin:0 0 34px;white-space:pre-line}
.cp-facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:54px;border-block:1px solid var(--line)}
.cp-fact{padding:20px 16px 18px 0;margin-right:16px;border-right:1px solid var(--line);min-width:0}
.cp-fact:last-child{border-right:0;margin-right:0}
.cp-fact b{display:flex;align-items:flex-end;gap:10px;font-family:var(--fd);font-weight:400;font-size:clamp(28px,3vw,42px);line-height:1.1;overflow-wrap:anywhere}
.cp-fact .int{padding-bottom:6px}
.cp-fact .int i{width:6px}
.cp-fact b.txt{font-size:clamp(22px,2.2vw,30px);line-height:1.2}
.cp-fact small{display:block;margin-top:8px;font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.cp-vis{position:relative;aspect-ratio:4/5;width:100%;max-height:70vh;justify-self:end}
.cp-vis::before{content:"";position:absolute;inset:18px -18px -18px 18px;border:2px solid var(--accent);clip-path:polygon(0 0,100% 0,100% 88%,86% 100%,0 100%)}
.cp-frame{position:absolute;inset:0;overflow:hidden;border:1px solid var(--line);clip-path:polygon(0 0,100% 0,100% 88%,86% 100%,0 100%);background:radial-gradient(80% 60% at 30% 20%,color-mix(in srgb,var(--accent) 36%,transparent),transparent 70%),repeating-linear-gradient(135deg,var(--s2) 0 14px,var(--s1) 14px 28px)}
.cp-frame img{width:100%;height:100%;object-fit:cover}
.cp-frame.has-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(0,0,0,.6))}
.cp-big{position:absolute;inset:0;display:grid;place-items:center;color:var(--accent)}
.cp-big svg{width:58%;height:auto;stroke-width:1.1;filter:drop-shadow(0 0 46px color-mix(in srgb,var(--accent) 45%,transparent))}
.cp-num{position:absolute;left:24px;bottom:16px;z-index:2;font-family:var(--fd);font-size:clamp(56px,6vw,92px);line-height:1;color:transparent;-webkit-text-stroke:1.5px var(--text)}
.cp-frame.has-img .cp-num{-webkit-text-stroke-color:#f3f3ee}
.mq-wrap.one{height:120px;margin:-20px 0}
.mq-wrap.one .m1{transform:translateY(-50%) rotate(-1.5deg)}
.cp-about{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:36px 80px;align-items:start}
.cp-text p{font-size:18px;color:var(--text2);margin:0 0 18px}
.cp-text p:first-child{font-size:21px;color:var(--text);font-weight:500}
.cp-sub{display:flex;align-items:center;gap:14px;margin:clamp(56px,6vw,80px) 0 22px;font-size:12px;font-weight:700;letter-spacing:.3em;text-transform:uppercase;color:var(--muted)}
.cp-sub::after{content:"";width:90px;height:1px;background:var(--line2)}
.cp-ben{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1px;margin:0;padding:0;list-style:none;background:var(--line);border:1px solid var(--line)}
.cp-ben li{display:flex;flex-direction:column;gap:26px;min-height:200px;padding:28px 26px 30px;background:var(--bg)}
.cp-ben small{font-family:var(--fd);font-size:15px;letter-spacing:.05em;color:var(--acc)}
.cp-ben p{margin:auto 0 0;font-size:18px;font-weight:600;line-height:1.45}
.cp-flow{background:var(--bg2);border-block:1px solid var(--line)}
.tl-bar{display:flex;gap:4px;height:62px;margin:0 0 36px}
.tl-bar i{flex:var(--w) 1 0;min-width:0;display:flex;align-items:flex-end;padding:10px 12px;overflow:hidden;white-space:nowrap;font-style:normal;font-family:var(--fd);font-size:20px;line-height:1;background:var(--accent);color:var(--ink)}
.tl-bar i:nth-child(2n){background:transparent;color:var(--text);box-shadow:inset 0 0 0 2px var(--accent)}
.tl-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:30px 28px;margin:0;padding:0;list-style:none}
.tl-list li{padding-top:18px;border-top:2px solid var(--line2)}
.tl-list small{font-family:var(--fd);font-size:16px;letter-spacing:.04em;color:var(--acc)}
.tl-list h3{font-family:var(--fd);font-weight:400;font-size:30px;line-height:1.12;text-transform:uppercase;margin:8px 0}
.tl-list p{margin:0;color:var(--muted);font-size:15px}
.cp-fit{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.cp-fit.one{grid-template-columns:minmax(0,760px)}
.cp-box{background:var(--card);border:1px solid var(--line);padding:32px 30px 20px}
.cp-box h3{font-family:var(--fd);font-weight:400;font-size:34px;line-height:1.1;text-transform:uppercase;margin:0 0 18px}
.cp-list{margin:0;padding:0;list-style:none}
.cp-list li{display:grid;grid-template-columns:22px minmax(0,1fr);gap:14px;padding:14px 0;border-top:1px solid var(--line);font-size:16px;color:var(--text2)}
.cp-list svg{width:20px;height:20px;margin-top:3px;color:var(--acc)}
.cp-sched{background:var(--bg2);border-block:1px solid var(--line)}
.cp-rows{display:grid;gap:8px}
.cp-row{display:grid;grid-template-columns:170px 170px minmax(0,1fr) auto;align-items:center;gap:8px 18px;padding:16px 22px;background:var(--card);border:1px solid var(--line);border-left:3px solid var(--accent)}
.cp-row.today{background:color-mix(in srgb,var(--accent) 7%,var(--card))}
.cp-row.past{opacity:.5}
.cp-row .d b{display:block;font-size:14px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.cp-row .d span{font-size:13px;color:var(--muted)}
.cp-row .t{font-family:var(--fd);font-size:28px;line-height:1;white-space:nowrap}
.cp-row .c{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.cp-row .x{display:flex;gap:10px;align-items:center;justify-content:flex-end}
.cp-row .live{position:static}
.pill{font-size:10px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;padding:4px 8px;background:var(--accent);color:var(--ink);white-space:nowrap}
.cp-empty{padding:34px 18px;text-align:center;color:var(--muted);border:1px dashed var(--line2);margin:0}
.cp-coaches{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.cp-co{display:grid;grid-template-columns:92px minmax(0,1fr);gap:20px;align-items:center;padding:14px;background:var(--card);border:1px solid var(--line);text-decoration:none;color:var(--text);transition:border-color .3s,transform .4s var(--ease)}
@media (hover:hover){a.cp-co:hover{border-color:var(--accent);transform:translateY(-4px)}}
.cp-co .ph{aspect-ratio:4/5;overflow:hidden;background:var(--s2)}
.cp-co img{width:100%;height:100%;object-fit:cover}
.cp-co .mono{display:grid;place-items:center;height:100%;font-family:var(--fd);font-size:38px;background:var(--accent);color:var(--ink)}
.cp-co small{display:block;font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--acc)}
.cp-co b{display:block;font-family:var(--fd);font-weight:400;font-size:38px;line-height:1.05;text-transform:uppercase;overflow-wrap:anywhere}
.cp-co span{display:block;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-top:4px}
.cp-note{display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;align-items:start;padding:22px 24px;margin:22px 0 0;background:var(--card);border:1px solid var(--line2);border-left:3px solid var(--accent);font-size:14.5px;color:var(--text2)}
.cp-note svg{width:24px;height:24px;color:var(--acc)}
.cp-note b{display:block;margin-bottom:4px;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--text)}
.cp-note p{margin:0;white-space:pre-line}

/* trang Gói tập (#goi-tap) */
.sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.pl-hero{padding-bottom:clamp(40px,5vw,64px)}
.pl-top{position:relative;z-index:2}
.pl-title{margin:24px 0 18px;font-size:clamp(54px,8.6vw,132px)}
.sec.pl-sec{padding-top:clamp(8px,2vw,24px)}
/* số cột theo số gói (n1…n4): ít gói thì không kéo giãn quá rộng, 4 gói nằm một hàng ở màn hình rộng và thành 2×2 ở máy tính bảng */
.pl-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;align-items:stretch}
.pl-grid.n1{max-width:420px}
.pl-grid.n2{max-width:840px}
.pl-grid.n3{max-width:1260px}
@media (max-width:1100px){.pl-grid.n4{grid-template-columns:repeat(2,minmax(0,1fr))}}
.pl-card{position:relative;display:flex;flex-direction:column;min-width:0;padding:34px 28px 28px;background:var(--card);border:1px solid var(--line);transition:border-color .35s,transform .45s var(--ease)}
@media (hover:hover){.pl-card:hover{border-color:var(--line2);transform:translateY(-6px)}}
.pl-card.feat{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent);background:linear-gradient(180deg,color-mix(in srgb,var(--accent) 12%,var(--card)),var(--card) 60%)}
.pl-tag{align-self:flex-start;margin:0 0 16px;padding:6px 11px;font-size:11px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--acc);border:1px solid var(--line2)}
.pl-card.feat .pl-tag{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.pl-name{font-family:var(--fd);font-weight:400;font-size:clamp(34px,3.2vw,44px);line-height:1.05;text-transform:uppercase;margin:0 0 10px;overflow-wrap:anywhere}
.pl-desc{margin:0 0 22px;color:var(--muted);font-size:15px}
.pl-price{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 10px}
.pl-old{flex:0 0 100%;font-size:15px;color:var(--dim);text-decoration:line-through}
.pl-amt{display:inline-flex;align-items:baseline;gap:3px;font-family:var(--fd);line-height:1}
.pl-amt b{font-weight:400;font-size:clamp(40px,4vw,54px);letter-spacing:.005em}
.pl-amt small{font-size:22px;color:var(--muted)}
.pl-amt.ask b{font-size:clamp(34px,3.4vw,44px)}
.pl-unit{flex:0 0 100%;margin-top:2px;font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.pl-save{align-self:flex-start;margin-top:12px;padding:5px 10px;font-size:11px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--acc)}
.pl-feat{flex:1;margin:22px 0 0;padding:0;list-style:none}
.pl-feat li{display:grid;grid-template-columns:20px minmax(0,1fr);gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:15px;color:var(--text2)}
.pl-feat svg{width:20px;height:20px;margin-top:2px;color:var(--acc)}
.pl-cta{padding-top:26px}
.pl-cta .btn{width:100%}
.pl-empty{margin:0;padding:40px 0;color:var(--muted);font-size:17px}
.pl-faq-sec{background:var(--bg2);border-block:1px solid var(--line)}
.pl-faq{max-width:900px;border-bottom:1px solid var(--line)}
.pl-q{border-top:1px solid var(--line)}
.pl-q summary{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 0;cursor:pointer;list-style:none;font-size:clamp(16px,1.6vw,19px);font-weight:700;line-height:1.4}
.pl-q summary::-webkit-details-marker{display:none}
.pl-q summary::after{content:"+";flex:none;font-family:var(--fd);font-size:30px;line-height:1;color:var(--acc);transition:transform .25s var(--ease)}
.pl-q[open] summary::after{transform:rotate(45deg)}
.pl-q summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.pl-q p{margin:0 0 24px;max-width:760px;color:var(--text2);font-size:16px;white-space:pre-line}
@media (max-width:700px){
  .pl-grid,.pl-grid.n4{grid-template-columns:minmax(0,1fr)}
  .pl-card{padding:28px 22px 24px}
}

/* cảm nhận hội viên (trang chủ, #cam-nhan): lưới 3 cột; điện thoại là dải vuốt ngang có điểm dừng */
.tm-sec{background:var(--bg2);border-block:1px solid var(--line)}
.tm-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.tm-grid.n1{grid-template-columns:minmax(0,760px)}
.tm-grid.n2,.tm-grid.n4{grid-template-columns:repeat(2,minmax(0,1fr))}
.tm-card{position:relative;display:flex;flex-direction:column;gap:18px;min-width:0;margin:0;padding:30px 28px 26px;background:var(--card);border:1px solid var(--line);transition:border-color .35s,transform .45s var(--ease)}
@media (hover:hover){.tm-card:hover{border-color:var(--line2);transform:translateY(-6px)}}
.tm-card::before{content:"\201C";position:absolute;top:10px;right:22px;font-family:var(--fd);font-size:112px;line-height:1;color:color-mix(in srgb,var(--accent) 24%,transparent);pointer-events:none}
.tm-stars{display:flex;gap:3px}
.tm-stars svg{width:18px;height:18px;fill:none;stroke:var(--line2);stroke-width:1.6;stroke-linejoin:round}
.tm-stars svg.on{fill:var(--acc);stroke:var(--acc)}
.tm-card blockquote{flex:1;margin:0}
.tm-card blockquote p{margin:0;font-size:17px;line-height:1.65;color:var(--text);white-space:pre-line}
.tm-card figcaption{display:grid;grid-template-columns:56px minmax(0,1fr);gap:12px 14px;align-items:center;padding-top:20px;border-top:1px solid var(--line)}
.tm-ph{position:relative;display:block;width:56px;height:56px;overflow:hidden;background:var(--s2);clip-path:polygon(0 0,100% 0,100% 80%,80% 100%,0 100%)}
.tm-ph img{display:block;width:100%;height:100%;object-fit:cover}
.tm-mono{display:grid;place-items:center;width:100%;height:100%;font-family:var(--fd);font-size:22px;color:var(--acc)}
.tm-who{min-width:0}
.tm-who b{display:block;font-size:16px;line-height:1.3;overflow-wrap:anywhere}
.tm-who small{display:block;margin-top:2px;font-size:12.5px;line-height:1.4;color:var(--muted)}
.tm-cls{grid-column:1/-1;justify-self:start;display:inline-flex;align-items:center;gap:8px;padding:6px 11px;font-size:11px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;text-decoration:none;color:var(--text2);border:1px solid var(--line2);transition:border-color .25s,color .25s}
.tm-cls i{width:8px;height:8px;background:var(--c)}
@media (hover:hover){.tm-cls:hover{border-color:var(--c);color:var(--text)}}
.tm-cta{margin-top:36px}
@media (max-width:1000px){
  .tm-grid,.tm-grid.n4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tm-grid.n1{grid-template-columns:minmax(0,760px)}
}
@media (max-width:700px){
  .tm-grid,.tm-grid.n2,.tm-grid.n4{display:flex;gap:14px;margin-inline:-16px;padding:2px 16px 16px;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .tm-grid::-webkit-scrollbar{display:none}
  .tm-card{flex:0 0 min(86%,360px);scroll-snap-align:center;padding:26px 22px 22px}
  .tm-grid.n1 .tm-card{flex-basis:100%}
}
.cls-grid.sm .cls{min-height:280px}
.cp .join .sec-head{color:var(--ink)}
.cp .join .sec-head::after{background:currentColor;opacity:.3}
.cls-grid.sm .cls-name{font-size:38px}
.foot-row button{background:none;border:0;padding:8px 0;cursor:pointer;color:inherit;font-size:13px}
@media (hover:hover){.foot-row button:hover{color:var(--acc)}}

/* điều chỉnh riêng cho giao diện sáng: chữ màu nhấn chuyển sang kiểu "bút dạ quang" để đọc được trên nền sáng */
:root[data-theme="light"] .hero-title .l3 i{color:var(--ink);background:var(--accent);padding:0 .08em}
:root[data-theme="light"] .sec:not(.join) .sec-title em{color:inherit;background:linear-gradient(transparent 62%,var(--accent) 62% 92%,transparent 92%);-webkit-box-decoration-break:clone;box-decoration-break:clone}
:root[data-theme="light"] .map iframe{filter:grayscale(.25)}
:root[data-theme="light"] .grain::after{opacity:.05}
::view-transition-old(root),::view-transition-new(root){animation-duration:.35s}

/* nút chuyển giao diện sáng / tối */
.theme-btn{flex:none;width:46px;height:46px;display:grid;place-items:center;padding:0;border:1px solid var(--line2);background:transparent;color:var(--text);cursor:pointer;transition:border-color .2s}
.theme-btn svg{width:20px;height:20px}
.theme-btn .i-moon,.theme-inline .i-moon{display:none}
:root[data-theme="light"] .theme-btn .i-sun,:root[data-theme="light"] .theme-inline .i-sun{display:none}
:root[data-theme="light"] .theme-btn .i-moon,:root[data-theme="light"] .theme-inline .i-moon{display:block}
.theme-inline svg{width:16px;height:16px;flex:none}
@media (hover:hover){.theme-btn:hover{border-color:var(--text)}}
.adm-actions .theme-btn{width:38px;height:38px}
.login-box{position:relative}
.login-box .theme-btn{position:absolute;top:14px;right:14px;width:40px;height:40px}

/* reveal */
.js .rv{opacity:0;transform:translateY(42px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.js .rv.vis{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .hero-grid{grid-template-columns:minmax(0,1fr) minmax(0,.55fr);gap:36px}
  .badge{width:120px;height:120px;left:-40px}
  .badge b{inset:30px;font-size:22px}
}
@media (max-width:980px){
  .nav-links{position:fixed;inset:0;z-index:-1;flex-direction:column;gap:0;padding:calc(var(--navh) + 12px) max(24px,env(safe-area-inset-right)) calc(24px + env(safe-area-inset-bottom)) max(24px,env(safe-area-inset-left));background:var(--bg);overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
  .nav-links>li:first-child{margin-top:auto}
  .nav-links>li:last-child{margin-bottom:auto}
  .nav-links a{display:block;padding:6px 0;font-family:var(--fd);font-size:clamp(30px,min(10vw,7.5vh),60px);line-height:1.2;letter-spacing:.01em;color:var(--text);font-weight:400}
  .nav-links a::after{display:none}
  .nav-links .m-cta{display:flex;flex-wrap:wrap;gap:10px;padding-top:20px}
  .nav-links .m-cta a,.nav-links .m-cta button{display:inline-flex;padding:14px 20px;font-family:var(--fb);font-size:12px;font-weight:700;line-height:1;letter-spacing:.14em}
  .menu-open .nav-links{opacity:1;visibility:visible}
  .nav-links .has-sub{flex-wrap:wrap;gap:0 14px}
  .sub-btn{width:44px;height:44px;margin:0;border:1px solid var(--line2);color:var(--text)}
  .sub-btn svg{width:20px;height:20px}
  .sub{position:static;display:none;flex-basis:100%;width:auto;margin:4px 0 12px;padding:2px 0 2px 14px;background:none;border:0;border-left:2px solid var(--line2);box-shadow:none;opacity:1;visibility:visible;transform:none;transition:none}
  .sub::before{display:none}
  .sub{max-height:none;overflow:visible}
  .has-sub.open>.sub{display:block}
  .nav-links .sub a{grid-template-columns:30px minmax(0,1fr);gap:12px;padding:8px 6px}
  .sub .ico{width:30px;height:30px}
  .sub b{font-size:22px}
  .nav-links .sub-all a{margin-top:2px;padding:15px 6px;border-top:0}
  html.menu-open,html.menu-open body{overflow:hidden}
  .burger{display:block}
}
@media (max-width:900px){
  .hero{padding-top:110px;min-height:auto}
  .hero-grid{grid-template-columns:1fr}
  .hero-vis{aspect-ratio:16/11;max-height:none;justify-self:stretch;order:2}
  .hero-vis::before{inset:12px -12px -12px 12px}
  .hv-mono{font-size:min(44vw,300px)}
  .badge{left:auto;right:-6px;top:-50px;bottom:auto}
  .scroll-cue{display:none}
  .about-grid,.join-grid,.ct-grid{grid-template-columns:1fr}
  .pillar{border-right:0;margin-right:0;border-bottom:1px solid var(--line);padding:26px 0}
  .pillars{margin-top:50px}
  .sg-wrap{display:none}
  .dv{display:block}
  .week-box{align-items:flex-start;text-align:left}
  .qr-card{justify-self:start}
  .join-big{display:none}
  .map{min-height:320px}
}
@media (max-width:700px){
  :root{--navh:66px}
  .wrap{width:calc(100% - 32px)}
  .nav-r .btn{display:none}
  .chips{flex:1 1 100%;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-inline:-16px;padding:2px 16px 4px;-webkit-overflow-scrolling:touch}
  .chips::-webkit-scrollbar{display:none}
  .chips>span,.chip{flex:none}
  .chip{min-height:40px}
  .st-tabs{margin-bottom:20px}
  .st-tabs button{flex-direction:column;padding:13px 14px}
  .st-tabs b{font-size:22px}
  .sec-top{margin-bottom:36px}
  .logo{font-size:min(24px,6.4vw)}
  .nav-in{gap:14px}
  .hero-title .l2 i{-webkit-text-stroke-width:1.5px}
  .hero-stats{gap:18px 34px;margin-top:44px}
  .mq-wrap{height:150px}
  .mq-track span{font-size:30px;gap:22px;padding-right:22px}
  .marquee{padding:13px 0}
  .cls{min-height:320px}
  .ct-row{grid-template-columns:1fr;gap:6px}
  .mbar{display:grid;grid-template-columns:1fr 1fr;position:fixed;left:0;right:0;bottom:0;z-index:55;border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);background:var(--bg)}
  .mbar a{display:flex;align-items:center;justify-content:center;gap:8px;height:56px;font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;text-decoration:none}
  .mbar a+a{background:var(--accent);color:var(--ink)}
  body.pub{padding-bottom:56px}
}
@media (max-width:400px){
  .nav-r .theme-btn{display:none}
}
@media (max-width:900px){
  .cp-grid,.cp-about,.cp-fit{grid-template-columns:1fr}
  .cp-vis{aspect-ratio:16/11;max-height:none;justify-self:stretch}
  .cp-vis::before{inset:12px -12px -12px 12px}
  .cp-big svg{width:auto;height:62%}
  .cp-facts{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cp-fact:nth-child(2n){border-right:0;margin-right:0}
  .cp-fact:nth-child(n+3){border-top:1px solid var(--line)}
  .cp-row{grid-template-columns:140px minmax(0,1fr) auto}
  .cp-row .c{grid-column:2/3}
  .cp-row .x{grid-column:3/4;grid-row:1/3}
}
@media (max-width:700px){
  .cp-hero{padding-top:calc(var(--navh) + 22px)}
  .crumbs{margin-bottom:22px}
  .cp-facts{margin-top:40px}
  .cp-row{grid-template-columns:minmax(0,1fr) auto;padding:14px 16px}
  .cp-row .c{grid-column:auto}
  .cp-row .x{grid-column:auto;grid-row:auto}
  .cp-row .t{font-size:24px;text-align:right}
  .cp-box{padding:26px 20px 14px}
  .tl-bar{height:52px}
  .cp-ben li{min-height:0;gap:10px;padding:22px 20px 24px}
  .tl-bar i{padding:8px;font-size:17px}
  .cp-co{grid-template-columns:80px minmax(0,1fr)}
  .cp-note{padding:18px}
}
/* ---------- hội viên: đăng nhập & đặt lớp ---------- */
.mem-slot{display:contents}
.mem-btn{gap:9px}
.mem-btn .mem-ico{width:16px;height:16px;flex:none}
.mem-btn.on{border-color:var(--accent);color:var(--text);padding-left:6px}
.mem-av{flex:none;display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--accent);color:var(--ink);font-size:11px;font-weight:800;letter-spacing:.04em;line-height:1}
.mem-av.big{width:52px;height:52px;font-size:17px}
.mem-btn.on .mem-av{width:24px;height:24px;font-size:10px;margin:-4px 0}
@media (hover:hover){.mem-btn.on:hover .mem-av{background:var(--bg);color:var(--text)}}
.sched-act{display:flex;flex-wrap:wrap;gap:10px}
.mem-cta:empty{display:none}
/* ô lịch đặt được */
.sess[data-book],.dv-item[data-book]{cursor:pointer}
@media (hover:hover){.sess[data-book]:hover{transform:translateY(-2px);border-color:var(--c)}.dv-item[data-book]:hover{border-color:var(--c)}}
.bk-tag{align-self:flex-start;display:inline-block;padding:3px 7px;font-size:10px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;line-height:1.3;white-space:nowrap;background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--acc);border:1px solid color-mix(in srgb,var(--accent) 45%,transparent)}
.bk-tag.mine{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.bk-tag.full{background:transparent;border-color:var(--line2);color:var(--muted)}
.dv-item .bk-tag{grid-column:2;margin-top:-6px}
.bk-hint{display:flex;align-items:center;gap:12px;margin:0 0 16px;padding:12px 16px;background:var(--card);border:1px solid var(--line);border-left:3px solid var(--accent);font-size:14px;color:var(--text2)}
.bk-hint svg{flex:none;width:20px;height:20px;color:var(--acc)}
.bk-hint a{color:var(--acc)}
/* hộp thoại */
.mdlg{width:min(560px,calc(100% - 24px))}
.mdlg .dlg{position:relative}
.dlg-x{position:absolute;top:14px;right:14px;width:40px;height:40px;display:grid;place-items:center;padding:0;border:1px solid var(--line2);background:transparent;color:var(--text);cursor:pointer}
.dlg-x svg{width:18px;height:18px}
@media (hover:hover){.dlg-x:hover{border-color:var(--text)}}
.mdlg .dlg-head{padding-right:46px}
.mdlg .dlg-head p b{color:var(--text)}
.mem-login .mem-go{width:100%;margin-top:4px}
.mem-help{margin:16px 0 0;text-align:center}
.mem-help a{color:var(--acc)}
/* sơ đồ chỗ */
.seat-dlg .dlg-head h3{border-left:6px solid var(--c);padding-left:12px}
.seat-top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 18px;margin-bottom:14px;font-size:13px;color:var(--muted)}
.seat-left b{font-family:var(--fd);font-weight:400;font-size:26px;color:var(--acc);margin-right:2px}
.seat-legend{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:12px}
.seat-legend span{display:inline-flex;align-items:center;gap:6px}
.seat-legend .seat{width:16px;height:16px;min-height:0;padding:0;pointer-events:none}
.seat-room{padding:14px;background:var(--bg2);border:1px solid var(--line)}
.seat-stage,.seat-back{text-align:center;font-size:11px;font-weight:800;letter-spacing:.24em;text-transform:uppercase;color:var(--muted)}
.seat-stage{padding:9px;margin-bottom:16px;background:var(--s4);border-bottom:3px solid var(--c);color:var(--text)}
.seat-back{margin-top:12px;font-weight:700;letter-spacing:.2em;color:var(--dim)}
.seat-map{display:grid;grid-template-columns:repeat(var(--cols,6),minmax(0,1fr));gap:8px}
.seat{display:grid;place-items:center;min-height:44px;padding:4px 0;border:1px solid var(--line2);background:var(--card);color:var(--text);font-family:var(--fd);font-size:18px;line-height:1;cursor:pointer;transition:background .15s,border-color .15s,color .15s,transform .15s}
.seat-room.round .seat{border-radius:50%;aspect-ratio:1;min-height:0;max-width:62px;justify-self:center;width:100%}
@media (hover:hover){.seat:not([disabled]):hover{border-color:var(--accent);transform:translateY(-1px)}}
.seat.x,.seat[disabled]{cursor:not-allowed}
.seat.x{background:repeating-linear-gradient(135deg,var(--s4) 0 5px,var(--s3) 5px 10px);color:var(--dim);border-color:var(--line)}
.seat[disabled]:not(.x):not(.me){opacity:.45}
.seat.sel,.seat.me{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.seat.me{box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 35%,transparent)}
.seat-msg{margin:14px 0 4px;font-size:14.5px;color:var(--text2)}
.seat-msg b{color:var(--text)}
/* trang Đặt lớp */
.bk-hero .cp-ico svg{width:28px;height:28px}
.bk-sec{padding-bottom:clamp(70px,8vw,120px)}
.bk-login{max-width:480px;padding:28px;background:var(--card);border:1px solid var(--line2);border-top:3px solid var(--accent)}
.bk-login .dlg-head h3{font-size:34px}
.bk-wait{padding:40px 0;color:var(--muted)}
.bk-me{display:flex;flex-wrap:wrap;align-items:center;gap:12px 14px;padding:18px 20px;background:var(--card);border:1px solid var(--line2)}
.bk-me-t b{display:block;font-family:var(--fd);font-weight:400;font-size:26px;line-height:1.1;text-transform:uppercase}
.bk-me-t small{color:var(--muted);font-size:13px}
.bk-me .sp{flex:1}
.bk-warn{margin-top:12px;padding:14px 18px;border:1px solid var(--danger-line);border-left:3px solid var(--red);color:var(--danger-fg);font-size:14px}
.bk-block{margin-top:44px}
.bk-h{display:flex;align-items:baseline;gap:12px;margin:0 0 16px;font-family:var(--fd);font-weight:400;font-size:clamp(30px,3.4vw,44px);line-height:1.1;text-transform:uppercase}
.bk-h small{font-family:var(--fb);font-size:12px;font-weight:800;color:var(--acc);letter-spacing:.1em}
.bk-empty{margin:0;padding:26px 18px;text-align:center;color:var(--muted);border:1px dashed var(--line2)}
.bk-mine{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:10px}
.bk-my{display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;gap:14px;align-items:center;padding:14px 16px;background:var(--card);border:1px solid var(--line);border-left:3px solid var(--c,var(--line2))}
.bk-when{display:grid;justify-items:center;min-width:46px}
.bk-when b{font-size:11px;font-weight:800;letter-spacing:.12em;color:var(--muted)}
.bk-when span{font-family:var(--fd);font-size:24px;line-height:1}
.bk-what{min-width:0}
.bk-what .n,.bk-info .n{display:flex;align-items:center;gap:10px;min-width:0;font-size:15px;letter-spacing:.04em;text-transform:uppercase}
.bk-what .logo-tile,.bk-info .logo-tile{height:32px}
.bk-what small,.bk-info small{display:block;margin-top:6px;font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.04em}
.bk-seat{display:grid;justify-items:center;padding:6px 10px;border:1px solid var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent);color:var(--text);cursor:pointer;font:inherit}
.bk-seat small{font-size:9.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.bk-seat b{font-family:var(--fd);font-weight:400;font-size:24px;line-height:1;color:var(--acc)}
.bk-my.gone{border-left-color:var(--red)}
.bk-days{display:grid;grid-template-columns:repeat(auto-fit,minmax(74px,1fr));gap:6px;margin-bottom:14px}
.bk-days button{position:relative;display:flex;flex-direction:column;align-items:center;padding:10px 4px 9px;background:var(--s3);border:1px solid var(--line);color:var(--muted);cursor:pointer}
.bk-days span{font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;white-space:nowrap}
.bk-days b{font-family:var(--fd);font-weight:400;font-size:22px;line-height:1.1}
.bk-days button[aria-selected="true"]{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.bk-dot{position:absolute;top:6px;right:6px;width:8px;height:8px;border-radius:50%;background:var(--accent)}
.bk-days button[aria-selected="true"] .bk-dot{background:var(--ink)}
.bk-st{margin-bottom:14px}
.bk-sl{display:grid;gap:8px}
.bk-row{display:grid;grid-template-columns:78px minmax(0,1fr) minmax(130px,190px) 150px;gap:18px;align-items:center;padding:14px 16px;background:var(--card);border:1px solid var(--line);border-left:3px solid var(--c)}
.bk-row.closed,.bk-row.expired{opacity:.55}
.bk-row.clash{opacity:.75}
.bk-row.mine{background:color-mix(in srgb,var(--accent) 7%,var(--card));border-color:color-mix(in srgb,var(--accent) 40%,var(--line))}
.bk-t b{display:block;font-family:var(--fd);font-weight:400;font-size:28px;line-height:1}
.bk-t small{font-family:var(--fd);font-size:16px;color:var(--muted)}
.bk-info .ico{width:28px;height:28px}
.bk-cap{display:grid;gap:6px;font-size:12.5px;color:var(--muted)}
.bk-cap b{color:var(--text);font-size:15px}
.bk-bar{display:block;height:6px;background:var(--s4);overflow:hidden}
.bk-bar i{display:block;height:100%;background:var(--c)}
.bk-row.full .bk-bar i{background:var(--muted)}
.bk-go{width:100%}
.bk-go.mine{border-color:var(--accent);color:var(--acc)}
.bk-note{margin-top:40px}
@media (max-width:980px){
  .bk-row{grid-template-columns:64px minmax(0,1fr) 140px;gap:12px 16px}
  .bk-cap{grid-column:2;grid-row:2}
  .bk-go{grid-column:3;grid-row:1/3}
}
@media (max-width:700px){
  .nav-r .mem-btn{display:inline-flex;width:46px;height:46px;padding:0;justify-content:center}
  .nav-r .mem-btn .mem-lbl{display:none}
  .nav-r .mem-btn.on{border-color:var(--line2)}
  .nav-r .mem-btn.on .mem-av{width:30px;height:30px;font-size:11px;margin:0}
  .mbar.n3{grid-template-columns:1fr 1fr 1fr}
  .mbar.n3 a+a{background:none;color:inherit;border-left:1px solid var(--line)}
  .mbar.n3 a:last-child{background:var(--accent);color:var(--ink);border-left:0}
  .bk-mine{grid-template-columns:1fr}
  .bk-my{grid-template-columns:auto minmax(0,1fr) auto;gap:10px 12px;padding:12px}
  .bk-my>.btn{grid-column:1/-1}
  .bk-row{grid-template-columns:56px minmax(0,1fr);gap:10px 12px;padding:12px}
  .bk-t b{font-size:24px}
  .bk-cap{grid-column:1/-1;grid-row:auto}
  .bk-go{grid-column:1/-1;grid-row:auto}
  .bk-me{padding:16px}
  .bk-me .sp{display:none}
  .bk-me .btn{flex:1 1 auto}
  .bk-days{display:flex;overflow-x:auto;margin-inline:-16px;padding:0 16px 4px;scrollbar-width:none}
  .bk-days::-webkit-scrollbar{display:none}
  .bk-days button{flex:0 0 72px}
  .bk-login{padding:22px 18px}
  .seat-map{gap:6px}
  .seat{min-height:40px;font-size:16px}
  .seat-room{padding:10px}
}
@media (max-width:420px){
  .nav-r .mem-btn{width:42px;height:42px}
  .mbar.n3 a{font-size:11px;letter-spacing:.1em}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .js .rv{opacity:1;transform:none}
}
@media print{
  .nav,.mbar,.mq-wrap,.grain::after,.hero,.boot{display:none!important}
  .js .rv{opacity:1;transform:none}
}

/* ============================================================
   QUẢN TRỊ
   ============================================================ */
.adm{min-height:100vh;background:var(--adm-bg)}
.adm-top{position:sticky;top:0;z-index:40;background:var(--adm-top);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.adm-top-in{display:flex;align-items:center;gap:8px 22px;min-height:66px;flex-wrap:wrap;padding-top:10px;padding-bottom:8px}
.adm-top .logo{font-size:24px}
/* các tab luôn nằm trên một dòng riêng dưới logo; thiếu chỗ thì vuốt ngang (không xuống nhiều dòng làm thanh tiêu đề quá cao) */
.adm-tabs{display:flex;gap:2px;order:3;flex:1 1 100%;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.adm-tabs::-webkit-scrollbar{display:none}
.adm-tabs button{flex:none;white-space:nowrap;background:none;border:0;padding:9px 13px;font-size:13px;font-weight:600;color:var(--muted);cursor:pointer;letter-spacing:.02em}
@media (hover:hover){.adm-tabs button:hover{color:var(--text)}}
.adm-tabs button.on{background:var(--accent);color:var(--ink)}
.adm-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-left:auto}
.adm-status{font-size:12px;color:var(--dim);font-weight:600;margin-right:4px}
.adm-status.dirty{color:var(--acc)}
.btn.has-dot::after{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.show-sm{display:none}
.week-nav{display:flex;gap:6px}
.week-nav .in{flex:1;min-width:0}
.adm-main{padding-top:34px;padding-bottom:120px}
.adm-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px 24px;margin-bottom:22px;flex-wrap:wrap}
.adm-head h2{font-family:var(--fd);font-weight:400;font-size:46px;text-transform:uppercase;margin:0;line-height:1}
.adm-head p{margin:8px 0 0;color:var(--muted);font-size:14px;max-width:760px}
.adm-card{background:var(--card);border:1px solid var(--line);padding:22px;margin-bottom:16px}
.adm-card h3{font-size:13px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;margin:0 0 16px}
.adm-card-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.adm-card-head .sp{flex:1}
.adm-card-head .ph{display:contents}
.tm-edit{display:grid;grid-template-columns:160px minmax(0,1fr);gap:24px;align-items:start}
.img-fld.sqc img,.img-fld.sqc .img-empty{aspect-ratio:1;object-fit:cover}
.adm-thumb{flex:none;width:40px;height:50px;object-fit:cover;border:1px solid var(--line);background:var(--s1)}
.tools{display:flex;gap:6px}
.tools button{min-width:36px}
.adm-warn{border:1px solid color-mix(in srgb,var(--accent) 45%,transparent);background:color-mix(in srgb,var(--accent) 7%,transparent);padding:12px 16px;font-size:14px;margin-bottom:16px}
.adm-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:14px 0}
.adm-row .sp{flex:1}
.adm-faq{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:0 14px;align-items:start;padding-top:16px;margin-top:6px;border-top:1px solid var(--line)}
.grid-2,.grid-3,.grid-4{display:grid;gap:0 16px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.f{display:grid;gap:7px;margin-bottom:16px;align-content:start;min-width:0}
.f>span{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.in{width:100%;background:var(--input);border:1px solid var(--input-line);color:var(--text);padding:11px 12px;font-size:14px;border-radius:0;transition:border-color .2s,box-shadow .2s}
.in:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 18%,transparent)}
.in::placeholder{color:var(--placeholder)}
.in:disabled{opacity:.45}
textarea.in{resize:vertical;min-height:92px;line-height:1.55}
select.in{appearance:none;-webkit-appearance:none;padding-right:34px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' stroke-width='1.6' fill='none'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}
input[type=color].in{padding:3px;height:44px;cursor:pointer}
.hint{color:var(--dim);font-size:12px;line-height:1.5}
.err{color:var(--red-fg);font-size:13px;min-height:1.2em;margin:0 0 12px}
.ck-line{display:flex;align-items:center;gap:10px;font-size:14px;cursor:pointer;margin-bottom:12px}
.ck-line input{width:18px;height:18px;accent-color:var(--accent);flex:none}
.pick{display:flex;flex-wrap:wrap;gap:8px}
.pk{position:relative}
.pk input{position:absolute;opacity:0;pointer-events:none}
.pk>span{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--line2);font-size:13px;font-weight:700;cursor:pointer;transition:.15s;color:var(--muted);letter-spacing:.03em}
.pk>span i{display:grid;place-items:center;width:22px;height:22px;background:var(--c,#333);color:#0a0a0a;font-style:normal}
@media (hover:hover){.pk>span:hover{border-color:var(--text);color:var(--text)}}
.pk input:checked+span{border-color:var(--c,var(--acc));background:color-mix(in srgb,var(--c,var(--accent)) 20%,transparent);color:var(--text)}
.pk input:focus-visible+span{outline:2px solid var(--acc);outline-offset:2px}
.pick.icons .pk>span{padding:8px}
.pick.icons .pk>span svg{width:22px;height:22px}
.preview{display:inline-flex;align-items:center;gap:10px;padding:6px 12px 6px 6px;background:var(--s3);border-left:3px solid var(--c);font-weight:800;letter-spacing:.06em;text-transform:uppercase;font-size:14px}
.count{font-size:12px;color:var(--dim);font-weight:600}
.adm-sg-scroll{overflow-x:auto;margin-bottom:6px;padding-bottom:6px}
.sg-adm{min-width:1060px}
.sg-adm .sg-time,.sg-adm .sg-corner{position:sticky;left:0;z-index:3}
.sg-adm .sg-corner{background:var(--adm-bg)}
.sg-adm .sg-cell{min-height:112px;padding:5px}
.sg-adm .sess{cursor:pointer;font:inherit;width:100%}
@media (hover:hover){.sg-adm .sess:hover{transform:translateY(-2px);border-color:var(--c)}}
.sg-adm .sess[draggable=true]{cursor:grab}
.adm-slot{border:0;cursor:pointer;font:inherit;font-family:var(--fd);font-size:22px;line-height:1.15;transition:background .2s}
.adm-slot small{font-family:var(--fb);font-size:10px;font-weight:700;letter-spacing:.16em;color:var(--muted);margin-top:6px;text-transform:uppercase}
@media (hover:hover){.adm-slot:hover{background:var(--s4)}}
@media (hover:hover){.adm-slot:hover small{color:var(--acc)}}
.cell-add{flex:1;border:1px dashed var(--add-line);background:transparent;color:var(--add-fg);font-size:24px;cursor:pointer;transition:.15s}
@media (hover:hover){.cell-add:hover{border-color:var(--acc);color:var(--acc)}}
.sg-cell.drop{outline:2px dashed var(--acc);outline-offset:-3px}
.coach-edit{display:grid;grid-template-columns:200px minmax(0,1fr);gap:24px}
.img-fld{display:flex;flex-direction:column;gap:10px}
.img-fld img,.img-empty{width:100%;aspect-ratio:4/5;object-fit:cover;background:var(--s1);border:1px solid var(--line)}
.img-fld.wide img,.img-fld.wide .img-empty{aspect-ratio:16/10}
.img-fld.sq img,.img-fld.sq .img-empty{aspect-ratio:1;object-fit:contain;background:#fff}
.img-fld.sq .img-empty{background:var(--s1)}
.img-empty{display:grid;place-items:center;color:var(--dim);font-size:13px}
.img-tools{display:flex;gap:6px;flex-wrap:wrap}
.bk-list{display:grid;gap:6px;max-height:340px;overflow:auto}
.bk{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;background:var(--s1);border:1px solid var(--line);font-size:14px}
.bk small{color:var(--dim)}
.adm-more{margin-top:4px;border-top:1px solid var(--line);padding-top:12px}
.adm-card.adm-more{margin-top:0;padding-top:14px}
/* tab Liên hệ */
.tab-badge{display:inline-grid;place-items:center;min-width:18px;height:18px;margin-left:6px;padding:0 5px;border-radius:9px;background:var(--red);color:var(--on-red);font-size:10.5px;font-weight:800;line-height:1;vertical-align:1px}
.adm-tabs button.on .tab-badge{background:var(--ink);color:var(--accent)}
.ct-tools{display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;margin-bottom:16px}
.ct-tools .in{flex:1 1 220px;width:auto;min-width:0}
.chip small{font-size:11px;font-weight:700;opacity:.75}
.ct-list{display:grid;gap:8px}
.ct-item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px 18px;align-items:start;padding:16px 18px;background:var(--s1);border:1px solid var(--line);border-left:3px solid var(--accent)}
.ct-item.done{border-left-color:var(--line2)}
.ct-item.done .ct-top b{color:var(--muted)}
.ct-top{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px}
.ct-top b{font-size:17px;overflow-wrap:anywhere}
.ct-top time{margin-left:auto;font-size:12px;color:var(--dim);font-variant-numeric:tabular-nums}
.ct-ok{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.ct-meta{display:flex;flex-wrap:wrap;gap:6px 16px;margin-top:6px;font-size:14px;color:var(--text2)}
.ct-meta a{color:var(--text);text-decoration:none;border-bottom:1px solid var(--line2);overflow-wrap:anywhere}
@media (hover:hover){.ct-meta a:hover{color:var(--acc);border-color:var(--acc)}}
.ct-msg{margin:10px 0 0;font-size:14px;color:var(--text2);white-space:pre-line;overflow-wrap:anywhere}
.ct-act{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.ct-empty{padding:30px 16px;text-align:center;color:var(--muted);border:1px dashed var(--line2);margin:0}
.ct-steps{margin:10px 0 18px;padding-left:20px;display:grid;gap:8px;font-size:14px;color:var(--text2)}
.ct-steps a{color:var(--acc)}
.ct-steps code{font-size:12.5px}
.code-box{min-height:340px;font:12px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;white-space:pre;overflow:auto}
.adm-more>summary{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:8px 0;cursor:pointer;list-style:none;font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
.adm-more>summary::-webkit-details-marker{display:none}
.adm-more>summary::before{content:"+";display:grid;place-items:center;width:26px;height:26px;border:1px solid var(--line2);font-size:16px;font-weight:600;letter-spacing:0}
.adm-more[open]>summary::before{content:"−"}
@media (hover:hover){.adm-more>summary:hover::before{border-color:var(--acc);color:var(--acc)}}
.adm-more>summary small{font-size:12px;font-weight:600;letter-spacing:.02em;text-transform:none;color:var(--dim)}
.adm-more-body{padding-top:14px}
.adm-more .img-fld{max-width:240px}
.adm-sub{font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
.cp-edit{display:grid;grid-template-columns:minmax(0,1fr) 200px;gap:0 24px}
/* ô logo bộ môn (không dùng tên lớp .logo: đã là logo thương hiệu ở thanh trên) */
.img-fld.mark{max-width:360px}
.img-fld.mark img{aspect-ratio:8/3;object-fit:contain;padding:12px 16px;background:#0d0d0d}
.img-fld.mark .img-empty{aspect-ratio:8/3}
.preview .logo-tile{height:26px;padding:3px 7px}
.st-row2{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:0 14px;align-items:end;max-width:640px}
.st-row2 .count{padding-bottom:29px;white-space:nowrap}
.st-pick{margin:6px 0 14px}
.st-row{display:grid;grid-template-columns:minmax(0,1.1fr) 96px minmax(0,2fr) auto;gap:0 12px;align-items:end}
.login{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(60% 50% at 75% 15%,color-mix(in srgb,var(--accent) 13%,transparent),transparent 70%),var(--bg)}
.login-box{width:min(430px,100%);background:var(--card);border:1px solid var(--line);padding:38px 34px}
.login-box h1{font-family:var(--fd);font-weight:400;font-size:48px;text-transform:uppercase;margin:22px 0 8px;line-height:1}
.login-box p{color:var(--muted);font-size:14px;margin:0 0 22px}
.login-box .btn{width:100%;margin-top:4px}
.login-box .back{display:inline-block;margin-top:20px;font-size:13px;color:var(--muted);text-decoration:none}
@media (hover:hover){.login-box .back:hover{color:var(--acc)}}
.howto{margin-top:18px;font-size:13px;color:var(--muted)}
.howto summary{cursor:pointer;color:var(--text);font-weight:600}
.howto ol{padding-left:18px;margin:10px 0 0;display:grid;gap:6px}
.howto a{color:var(--acc)}
dialog{background:var(--dialog);color:var(--text);border:1px solid var(--line2);padding:0;width:min(620px,calc(100% - 24px));max-height:calc(100vh - 32px);max-height:calc(100dvh - 32px);overflow:auto;overscroll-behavior:contain}
dialog::backdrop{background:var(--backdrop);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.dlg{padding:26px}
.dlg-head{margin-bottom:20px}
.dlg-head h3{font-family:var(--fd);font-weight:400;font-size:36px;text-transform:uppercase;margin:0;line-height:1}
.dlg-head p{margin:6px 0 0;color:var(--muted);font-size:14px}
.dlg-foot{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:12px;border-top:1px solid var(--line);padding-top:18px}
.dlg-foot .sp{flex:1}
.dlg img.poster{width:100%;border:1px solid var(--line);margin-bottom:6px}
.toast{position:fixed;left:50%;bottom:26px;z-index:400;transform:translate(-50%,16px);background:var(--text);color:var(--bg);padding:13px 20px;font-size:14px;font-weight:600;opacity:0;pointer-events:none;transition:opacity .3s,transform .3s;max-width:calc(100% - 32px);box-shadow:0 12px 40px rgba(0,0,0,.5)}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.err{background:var(--red);color:var(--on-red)}
@media (max-width:860px){
  .adm-top-in{gap:8px 10px;min-height:0;padding-top:8px;padding-bottom:8px}
  .adm-top .logo{font-size:20px}
  .adm-top .logo small,.adm-status,.hide-sm{display:none}
  .adm-actions{margin-left:auto;gap:6px;flex-wrap:nowrap}
  .adm-actions .btn{padding:10px 12px}
  .adm-tabs button{padding:10px 13px}
  .adm-main{padding-top:24px}
  .show-sm{display:block}
  .grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .coach-edit,.cp-edit,.tm-edit{grid-template-columns:1fr}
  .coach-edit .img-fld,.tm-edit .img-fld{max-width:240px}
}
@media (max-width:860px) and (max-height:500px){
  .adm-tabs{order:0;flex:1 1 0;min-width:0}
}
@media (max-width:560px){
  .adm-top .logo span{display:none}
}
@media (max-width:380px){
  .adm-actions .btn{padding:10px 8px;letter-spacing:.06em}
}
/* iOS tự phóng to khi chạm vào ô nhập có cỡ chữ < 16px */
@media (max-width:860px),(pointer:coarse){
  .in,select.in,textarea.in{font-size:16px}
}
@media (pointer:coarse){
  .hide-touch{display:none}
}
@media (max-width:600px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .adm-faq{grid-template-columns:1fr}
  .st-row{grid-template-columns:minmax(0,1fr) 84px;padding-bottom:6px;border-bottom:1px dashed var(--line)}
  .st-row>:nth-child(n+3){grid-column:1/-1}
  .ct-item{grid-template-columns:1fr;padding:14px}
  .ct-act{justify-content:flex-start}
  .ct-top time{margin-left:0;flex-basis:100%}
  .adm-head h2{font-size:38px}
  .adm-card{padding:18px 16px}
}
.noscript{padding:40px;text-align:center}
/* nếu không tải được JavaScript, màn hình chờ tự ẩn thay vì che trang mãi */
.boot{animation:bootOut .4s 6s forwards}
@keyframes bootOut{to{opacity:0;visibility:hidden}}

/* ---------- quản trị: hội viên & đặt lớp ---------- */
.adm-bk{position:absolute;right:6px;bottom:6px;display:inline-flex;align-items:center;gap:4px;padding:3px 6px;border:1px solid color-mix(in srgb,var(--accent) 50%,transparent);background:var(--card);color:var(--text);font:800 11px/1 var(--fb);letter-spacing:.02em;cursor:pointer}
.adm-bk svg{width:12px;height:12px;color:var(--acc)}
.adm-bk.full{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.adm-bk.full svg{color:var(--ink)}
.adm-bk.zero{border-color:var(--line2);color:var(--dim)}
.adm-bk.zero svg{color:var(--dim)}
@media (hover:hover){.adm-bk:hover{border-color:var(--text)}}
.hint-ico{width:14px;height:14px;vertical-align:-2px;color:var(--acc)}
.adm-bk-tabs{margin-bottom:16px}
.adm-bk-nav{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-bottom:14px}
.adm-bk-nav .chips{flex:1 1 auto}
.adm-bk-nav .in{width:auto;flex:0 0 170px}
.adm-bk-s{border:1px solid var(--line);border-left:3px solid var(--c);background:var(--s1);margin-top:8px}
.adm-bk-s>summary{display:grid;grid-template-columns:70px minmax(0,1fr) 170px;gap:14px;align-items:center;padding:12px 14px;cursor:pointer;list-style:none}
.adm-bk-s>summary::-webkit-details-marker{display:none}
.adm-bk-s .t{font-family:var(--fd);font-size:24px;line-height:1}
.adm-bk-s .t small{display:block;font-size:14px;color:var(--muted);margin-top:3px}
.adm-bk-s .n{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;min-width:0}
.adm-bk-s .n b{font-size:15px;letter-spacing:.04em;text-transform:uppercase}
.adm-bk-s .n small{flex-basis:100%;font-size:12px;color:var(--muted)}
.adm-bk-s .n .logo-tile{height:30px}
.adm-bk-s .cnt{display:grid;gap:5px;font-size:13px;color:var(--muted);text-align:right}
.adm-bk-s .cnt b{font-family:var(--fd);font-weight:400;font-size:24px;color:var(--text)}
.adm-bk-s .cnt.full b{color:var(--acc)}
.adm-bk-s .bar{display:block;height:5px;background:var(--s4)}
.adm-bk-s .bar i{display:block;height:100%;background:var(--c)}
.adm-bk-s[open]>summary{border-bottom:1px solid var(--line)}
.adm-bk-body{display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;padding:14px;align-items:start}
.adm-bk-body>.hint{grid-column:1/-1;margin:0}
.bk-mini{display:grid;grid-template-columns:repeat(var(--cols,6),22px);gap:3px}
.bk-mini i{display:grid;place-items:center;height:22px;border:1px solid var(--line2);font:700 9.5px/1 var(--fb);font-style:normal;color:var(--dim)}
.bk-mini i.on{background:var(--c,var(--accent));border-color:var(--c,var(--accent));color:#0a0a0a}
.bk-mini.sm{grid-template-columns:repeat(var(--cols,6),20px)}
.bk-mini.sm i{height:20px}
.adm-bk-rows{display:grid;gap:4px;min-width:0}
.adm-bk-r{display:grid;grid-template-columns:34px minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr) auto;gap:10px;align-items:center;padding:6px 8px;background:var(--card);border:1px solid var(--line);font-size:14px}
.adm-bk-r .no{font-family:var(--fd);font-weight:400;font-size:20px;color:var(--acc);text-align:center}
.adm-bk-r .nm{overflow-wrap:anywhere}
.adm-bk-r small{font-size:12px;color:var(--dim)}
.adm-bk-r.gone .nm{color:var(--muted)}
.mem-item{grid-template-columns:auto minmax(0,1fr) auto}
.mem-item .mem-av{width:40px;height:40px;font-size:13px}
.pill-off{background:var(--s4);color:var(--muted)}
.pw-row{display:flex;gap:8px}
.pw-row .in{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.06em}
.cred-box{font:14px/1.55 var(--fb);resize:vertical}
.st-lay{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px 26px;align-items:center;padding:14px 0;border-top:1px solid var(--line)}
.st-lay .count{display:block;margin-top:-6px}
.st-lay-f>.adm-sub{display:block;margin-bottom:12px;color:var(--acc)}
@media (max-width:800px){
  .adm-bk-s>summary{grid-template-columns:56px minmax(0,1fr);gap:8px 12px}
  .adm-bk-s .cnt{grid-column:1/-1;text-align:left;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:10px}
  .adm-bk-body{grid-template-columns:1fr}
  .adm-bk-r{grid-template-columns:30px minmax(0,1fr) auto;gap:4px 10px}
  .adm-bk-r a,.adm-bk-r small{grid-column:2}
  .adm-bk-r .btn{grid-column:3;grid-row:1/4}
  .mem-item{grid-template-columns:auto minmax(0,1fr)}
  .mem-item .ct-act{grid-column:1/-1;justify-content:flex-start}
  .st-lay{grid-template-columns:1fr}
}

/* ---------- quản trị: tổng quan đặt lớp, thông báo, hội viên đã đặt gì ---------- */
.adm-bell{position:relative;display:inline-grid;place-items:center;width:38px;height:38px;padding:0}
.adm-bell svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.bell-badge{position:absolute;top:-7px;right:-7px;min-width:19px;height:19px;padding:0 5px;display:grid;place-items:center;border-radius:10px;background:var(--red);color:var(--on-red);font:800 11px/1 var(--fb)}
.adm-bell.ring{border-color:var(--accent);color:var(--text)}
.adm-bell.ring svg{animation:bellring 1.6s ease-in-out infinite;transform-origin:50% 10%}
@keyframes bellring{0%,60%,100%{transform:rotate(0)}10%{transform:rotate(14deg)}20%{transform:rotate(-12deg)}30%{transform:rotate(9deg)}40%{transform:rotate(-6deg)}50%{transform:rotate(3deg)}}
.ov-tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:16px}
.ov-tiles>div{padding:16px 18px;background:var(--card);border:1px solid var(--line);border-top:3px solid var(--line2)}
.ov-tiles>.hot{border-top-color:var(--accent)}
.ov-tiles b{display:block;font-family:var(--fd);font-weight:400;font-size:38px;line-height:1}
.ov-tiles>.hot b{color:var(--acc)}
.ov-tiles span{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.ov-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px 12px;margin-bottom:14px}
.ov-bar .chips{flex:1 1 auto}
.ov-sep{width:1px;height:22px;background:var(--line2);margin:0 4px}
.ov-day{margin-bottom:12px;background:var(--card);border:1px solid var(--line)}
.ov-day>header{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px;padding:12px 16px;border-bottom:1px solid var(--line)}
.ov-day>header b{font-family:var(--fd);font-weight:400;font-size:24px;text-transform:uppercase}
.ov-day>header span{font-family:var(--fd);font-size:20px;color:var(--acc)}
.ov-day>header small{margin-left:auto;font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--muted)}
.ov-day.none>header{border-bottom:0;padding:9px 16px}
.ov-day.none>header b{font-size:19px;color:var(--muted)}
.ov-day.none>header span{font-size:17px;color:var(--dim)}
.ov-none{margin:0;padding:14px 16px;font-size:13.5px;color:var(--dim)}
.ov-row{display:grid;grid-template-columns:70px minmax(0,1fr) 170px auto;gap:14px;align-items:center;width:100%;padding:11px 16px;background:transparent;border:0;border-bottom:1px solid var(--line);border-left:3px solid var(--c);color:var(--text);text-align:left;font:inherit;cursor:pointer}
.ov-row:last-child{border-bottom:0}
@media (hover:hover){.ov-row:hover{background:color-mix(in srgb,var(--c) 9%,transparent)}}
.ov-row.new{background:color-mix(in srgb,var(--accent) 9%,transparent)}
.ov-row.ended{opacity:.55}
.ov-row .t{font-family:var(--fd);font-size:22px;line-height:1}
.ov-row .t small{display:block;margin-top:2px;font-size:14px;color:var(--muted)}
.ov-row .n{display:flex;flex-wrap:wrap;align-items:center;gap:4px 12px;min-width:0}
.ov-row .n>b{font-size:15px;letter-spacing:.04em;text-transform:uppercase}
.ov-row .n small{flex-basis:100%;font-size:12px;color:var(--muted)}
.ov-row .n .logo-tile{height:30px}
.ov-row .cnt{display:grid;gap:5px;font-size:13px;color:var(--muted);text-align:right}
.ov-row .cnt b{font-family:var(--fd);font-weight:400;font-size:26px;color:var(--text)}
.ov-row .cnt.full b{color:var(--acc)}
.ov-row .bar{display:block;height:5px;background:var(--s4)}
.ov-row .bar i{display:block;height:100%;background:var(--c)}
.ov-row.full .bar i{background:var(--accent)}
.lnk{padding:0;border:0;background:none;color:inherit;font:inherit;font-weight:700;text-decoration:underline;text-decoration-color:var(--line2);text-underline-offset:3px;cursor:pointer;text-align:left}
@media (hover:hover){.lnk:hover{color:var(--acc);text-decoration-color:var(--acc)}}
.feed-dlg{width:min(620px,100%)}
.feed-list{display:grid;gap:6px;max-height:min(56vh,480px);overflow:auto;margin-bottom:14px}
.feed-it{display:grid;grid-template-columns:32px minmax(0,1fr) auto;gap:12px;align-items:center;padding:10px 12px;background:var(--s1);border:1px solid var(--line);border-left:3px solid var(--line2)}
.feed-it.book{border-left-color:var(--accent)}
.feed-it.new{background:color-mix(in srgb,var(--accent) 10%,var(--s1))}
.feed-ic{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--line2);font:800 18px/1 var(--fb)}
.feed-it.book .feed-ic{background:var(--accent);color:var(--ink)}
.feed-t{min-width:0;font-size:14px;overflow-wrap:anywhere}
.feed-t small{display:block;margin-top:3px;color:var(--muted);font-size:12px}
.feed-prefs{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px}
.feed-prefs .hint{flex-basis:100%}
.mb-head{display:flex;align-items:center;gap:16px}
.mb-head h3{font-size:30px}
.mb-head p a{color:var(--acc)}
.mb-h{display:flex;align-items:baseline;gap:10px;margin:6px 0 10px;font-family:var(--fd);font-weight:400;font-size:22px;text-transform:uppercase}
.mb-h small{font-family:var(--fb);font-size:12px;font-weight:800;color:var(--acc)}
.mb-r{display:grid;grid-template-columns:54px minmax(0,1fr) 54px auto;gap:12px;align-items:center;padding:9px 10px;margin-bottom:6px;background:var(--s1);border:1px solid var(--line)}
.mb-r .d{display:grid;justify-items:center;font-family:var(--fd);font-size:19px;line-height:1.1}
.mb-r .d b{font:800 10.5px/1 var(--fb);letter-spacing:.1em;color:var(--muted)}
.mb-r .w b{font-size:14.5px;text-transform:uppercase;letter-spacing:.03em}
.mb-r .w small{display:block;color:var(--muted);font-size:12px}
.mb-r .s{display:grid;justify-items:center}
.mb-r .s small{font-size:9.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.mb-r .s b{font-family:var(--fd);font-weight:400;font-size:22px;line-height:1;color:var(--acc)}
.mb-r.past{opacity:.7}
.mb-past{margin-top:14px;border-top:1px solid var(--line);padding-top:10px}
.mb-past>summary{cursor:pointer;font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;padding:6px 0}
.mb-past>summary small{font-weight:600;letter-spacing:.02em;text-transform:none;color:var(--dim);margin-left:8px}
.mb-past .mb-r:first-of-type{margin-top:8px}
@media (max-width:800px){
  .ov-tiles{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ov-row{grid-template-columns:56px minmax(0,1fr);gap:8px 12px;padding:10px 12px}
  .ov-row .cnt{grid-column:1/-1;text-align:left;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:10px}
  .ov-row .pill{position:absolute}
  .ov-row{position:relative}
  .feed-it{grid-template-columns:28px minmax(0,1fr)}
  .feed-it>.btn{grid-column:2;justify-self:start}
  .mb-r{grid-template-columns:48px minmax(0,1fr) 44px}
  .mb-r>.btn{grid-column:1/-1}
}