/* Website Nguyễn Minh Thắng — trắng chủ đạo, chữ navy, điểm nhấn cam; một cột, đọc theo hàng */
:root{
  --navy:#11224E; --navy-2:#1B3168;
  --orange:#F77B1B; --orange-dark:#C85A08; --orange-soft:#FFF2E7;
  --ink:#18202F; --body:#323B4D; --muted:#5A6375; --line:#E4E7EE; --cream:#FAF7F3; --paper:#FFFFFF; --soft-bg:#F6F7FA;
  --sans:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Arial,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}
h1,h2,h3,p{margin:0} h1,h2,h3{text-wrap:balance}
a{color:var(--orange-dark)} a:hover{color:var(--navy)}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px}
img{max-width:100%;display:block}
.col{max-width:880px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.wide{max-width:1100px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* đầu trang */
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:20;background:var(--paper)}
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:15;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .col{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:12px}
.brand{font-weight:800;color:var(--navy);text-decoration:none;letter-spacing:-.01em;white-space:nowrap}
.brand i{font-style:normal;color:var(--orange)}
.menu{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:4px 22px;font-size:15px}
.menu a{color:var(--muted);text-decoration:none;display:inline-block;padding:6px 0}
.menu a:hover,.menu a[aria-current="page"]{color:var(--navy)}
.menu a[aria-current="page"]{box-shadow:inset 0 -2px 0 var(--orange)}
.has-sub{position:relative}
.has-sub>a::after{content:" ▾";font-size:11px}
.sub{list-style:none;margin:0;padding:8px;position:absolute;left:-10px;top:100%;min-width:190px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px rgba(17,34,78,.10);display:none}
.sub a{display:block;padding:7px 10px;border-radius:6px}
.sub a:hover{background:var(--soft-bg)}
.has-sub:hover .sub,.has-sub:focus-within .sub{display:block}
.menu-btn{display:none;font:600 14px var(--sans);background:#fff;color:var(--navy);border:1px solid var(--line);border-radius:8px;padding:8px 12px;cursor:pointer;min-height:40px}
@media (max-width:820px){
  .menu-btn{display:inline-block}
  .menu{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:8px max(20px,env(safe-area-inset-left,0px)) 16px}
  .menu.open{display:flex}
  .menu>li{border-top:1px solid var(--line)}
  .menu a{padding:12px 0;width:100%}
  .has-sub>a::after{content:""}
  .sub{display:block;position:static;border:0;box-shadow:none;padding:0 0 8px 14px;min-width:0}
  .sub a{padding:8px 0}
}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 22px;border-radius:10px;font-weight:700;font-size:15px;text-decoration:none;font-family:var(--sans);border:0;cursor:pointer;text-align:center}
.btn-o{background:var(--orange);color:#fff} .btn-o:hover{background:var(--orange-dark);color:#fff}
.btn-l{background:#fff;color:var(--navy);border:1.5px solid var(--line)} .btn-l:hover{border-color:var(--orange);color:var(--navy)}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.more{font-weight:700;text-decoration:none}

.kicker{display:flex;align-items:center;gap:12px;font-size:12px;font-weight:700;letter-spacing:.22em;color:var(--orange-dark);text-transform:uppercase}
.kicker::before{content:"";width:28px;height:2px;background:var(--orange)}
.lead{font-size:clamp(20px,2.4vw,24px);font-weight:700;color:var(--navy);line-height:1.45}
.prose{display:flex;flex-direction:column;gap:16px;color:var(--body)}
.stack{display:flex;flex-direction:column;gap:26px}
.sec{padding-block:80px 8px}
.sec-head{display:flex;flex-direction:column;gap:10px;margin-bottom:6px}
.sec-head h2{font-size:clamp(28px,3.6vw,36px);font-weight:800;color:var(--navy);line-height:1.18;letter-spacing:-.02em}
.sec-head p{color:var(--muted)}

/* mở đầu trang chủ */
.hero{border-left:10px solid var(--orange);border-bottom:1px solid var(--line);overflow:hidden}
.hero .col{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:28px;align-items:end;padding-top:56px}
.hero-text{display:flex;flex-direction:column;gap:20px;padding-bottom:52px;min-width:0}
.hero h1{font-size:clamp(40px,6.2vw,66px);font-weight:900;line-height:1.02;letter-spacing:-.035em;color:var(--navy)}
.motto{font-size:clamp(22px,2.8vw,29px);font-weight:700;line-height:1.3;color:var(--navy);max-width:600px}
.motto em{font-style:normal;color:var(--orange)}
.motto-vi{font-size:17px;color:var(--muted);max-width:560px;border-left:2px solid var(--orange);padding-left:14px}
.help{font-size:16px;color:var(--body);max-width:580px}
.hero-photo img{width:100%;max-height:560px;object-fit:cover;object-position:top;border-radius:16px 16px 0 0;background:#6b6b74}
@media (max-width:760px){
  .hero .col{grid-template-columns:1fr;padding-top:32px}
  .hero-photo{order:-1;max-width:200px}
  .hero-photo img{border-radius:12px}
  .hero-text{padding-bottom:40px}
}

/* bằng chứng */
.proof{background:var(--soft-bg);border-bottom:1px solid var(--line)}
.proof .col{padding-block:36px;display:flex;flex-direction:column;gap:26px}
.roles{list-style:none;margin:0;padding:0}
.roles li{display:grid;grid-template-columns:150px minmax(0,1fr);gap:16px;padding:14px 0;border-top:1px solid var(--line)}
.roles li:first-child{border-top:0;padding-top:0}
.roles b{font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--orange-dark);padding-top:3px}
.roles span{color:var(--navy);font-weight:600}
@media (max-width:560px){.roles li{grid-template-columns:1fr;gap:2px}}
.nums{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px 32px}
.nums b{display:block;font-size:40px;font-weight:900;line-height:1;color:var(--navy);letter-spacing:-.02em}
.nums b i{font-style:normal;color:var(--orange)}
.nums span{display:block;margin-top:8px;font-size:14px;color:var(--muted);line-height:1.5}
@media (max-width:600px){.nums{grid-template-columns:1fr}}
.orgs{display:flex;flex-wrap:wrap;align-items:center;gap:10px 12px}
.orgs small{font-size:11px;font-weight:700;letter-spacing:.18em;color:var(--muted);margin-right:6px}
.orgs span{font-size:14px;font-weight:600;color:var(--navy);background:#fff;border:1px solid var(--line);border-radius:6px;padding:6px 14px}

/* khối có ảnh bên trái */
.split{display:grid;grid-template-columns:240px minmax(0,1fr);gap:36px;align-items:start}
.split img{border-radius:14px;aspect-ratio:3/4;object-fit:cover;object-position:top;background:#6b6b74}
@media (max-width:680px){.split{grid-template-columns:1fr}.split img{max-width:220px}}
.chapters{list-style:none;margin:0;padding:0}
.chapters li{display:grid;grid-template-columns:170px minmax(0,1fr);gap:12px;padding:12px 0;border-top:1px solid var(--line)}
.chapters small{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--orange-dark);padding-top:4px;text-transform:uppercase}
.chapters a{color:var(--navy);font-weight:700;text-decoration:none}
.chapters a:hover{color:var(--orange-dark)}
@media (max-width:520px){.chapters li{grid-template-columns:1fr;gap:0}}

/* danh sách chương trình kiểu hàng */
.rows{list-style:none;margin:0;padding:0}
.rows li{display:grid;grid-template-columns:52px minmax(0,1fr);gap:14px;padding:22px 0;border-top:1px solid var(--line)}
.rows li:first-child{border-top:0}
.rows .n{font-size:28px;font-weight:900;color:var(--orange);line-height:1}
.rows h3{font-size:20px;color:var(--navy);line-height:1.3}
.rows h3 small{font-weight:600;color:var(--muted);font-size:15px}
.rows .q{font-style:italic;font-weight:600;color:var(--orange-dark);margin-top:4px}
.rows .for{font-size:14px;color:var(--muted);margin-top:4px}

/* khai vấn */
.coach-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:start}
.forms{display:flex;flex-direction:column;gap:12px}
.forms a{display:block;border:1px solid var(--line);border-radius:12px;padding:18px 20px;text-decoration:none;color:var(--ink)}
.forms a:hover{border-color:var(--orange)}
.forms small{font-size:11px;font-weight:800;letter-spacing:.16em;color:var(--orange-dark)}
.forms h3{font-size:19px;color:var(--navy);margin:2px 0 4px}
.forms p{font-size:15px;color:var(--muted)}
.forms .go{display:block;margin-top:8px;font-weight:700;color:var(--orange-dark);font-size:14px}
@media (max-width:720px){.coach-wrap{grid-template-columns:1fr}}

/* bài viết */
.articles{list-style:none;margin:0;padding:0}
.articles li{border-top:1px solid var(--line)}
.articles li:first-child{border-top:0}
.articles a{display:grid;grid-template-columns:120px minmax(0,1fr) 24px;gap:14px;padding:15px 0;color:var(--navy);text-decoration:none;font-weight:600}
.articles a:hover{color:var(--orange-dark)}
.articles time{font-size:14px;font-weight:500;color:var(--muted)}
.articles .arr{color:var(--orange)}
@media (max-width:560px){.articles a{grid-template-columns:minmax(0,1fr) 20px}.articles time{grid-column:1/-1;margin-bottom:-10px}}
.series{font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--orange-dark);text-transform:uppercase;margin-top:12px}

/* liên hệ cuối trang */
.contact{margin-top:96px;background:var(--cream);border-top:6px solid var(--orange)}
.contact .col{padding-block:56px 32px;display:flex;flex-direction:column;gap:22px}
.contact h2{font-size:clamp(30px,4.4vw,44px);font-weight:900;color:var(--navy);letter-spacing:-.03em;line-height:1.05}
.contact .sub{color:var(--body)}
.cgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 32px;border-top:1px solid var(--line);padding-top:20px}
.cgrid small{display:block;font-size:12px;color:var(--muted)}
.cgrid b{color:var(--navy);font-size:16px;word-break:break-word}
.cgrid a{color:var(--navy)}
@media (max-width:560px){.cgrid{grid-template-columns:1fr}}
.foot{font-size:13px;color:var(--muted);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 20px;border-top:1px solid var(--line);padding-top:18px}
.foot nav{display:flex;flex-wrap:wrap;gap:6px 16px}
.foot a{color:var(--muted);text-decoration:none} .foot a:hover{color:var(--navy)}

/* đầu trang chi tiết */
.page-head{border-bottom:1px solid var(--line);border-left:10px solid var(--orange)}
.page-head .col{padding-block:52px 44px;display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:32px;align-items:center}
.page-head.noimg .col{grid-template-columns:1fr}
.page-head .txt{display:flex;flex-direction:column;gap:16px;min-width:0}
.page-head h1{font-size:clamp(30px,4.4vw,46px);font-weight:900;color:var(--navy);line-height:1.12;letter-spacing:-.025em}
.page-head .intro{color:var(--body);max-width:620px}
.page-head img{border-radius:14px;aspect-ratio:3/4;object-fit:cover;object-position:top;background:#6b6b74}
@media (max-width:680px){.page-head .col{grid-template-columns:1fr}.page-head img{max-width:180px;order:-1}}

/* sứ mệnh */
.mission-big{font-size:clamp(26px,3.6vw,38px);font-weight:800;line-height:1.22;color:var(--navy);letter-spacing:-.02em}
.mission-big em{font-style:normal;color:var(--orange)}
.mission-vi{font-size:clamp(18px,2.1vw,21px);font-weight:600;color:var(--navy);border-left:3px solid var(--orange);padding-left:16px}
.halves{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.halves div{background:var(--cream);border-radius:12px;padding:20px 22px}
.halves small{font-size:11px;font-weight:800;letter-spacing:.16em;color:var(--orange-dark)}
.halves h3{font-size:19px;color:var(--navy);margin:4px 0 8px}
.halves p{font-size:16px;color:var(--body)}
@media (max-width:640px){.halves{grid-template-columns:1fr}}

/* bản đồ hành trình */
.map{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));position:relative}
.map::before{content:"";position:absolute;left:10%;right:10%;top:15px;height:2px;background:var(--line)}
.map li{position:relative;text-align:center;display:flex;flex-direction:column;align-items:center;gap:8px;min-width:0}
.map .dot{width:32px;height:32px;border-radius:50%;background:#fff;border:3px solid var(--navy-2);position:relative;z-index:1}
.map .star .dot{background:var(--orange);border-color:var(--orange);color:#fff;font-size:15px;line-height:26px;font-weight:800}
.map b{font-size:15px;color:var(--navy)}
.map a{text-decoration:none;font-size:13px;font-weight:700}
@media (max-width:640px){
  .map{grid-template-columns:1fr;gap:0}
  .map::before{left:15px;right:auto;top:10px;bottom:10px;width:2px;height:auto}
  .map li{flex-direction:row;text-align:left;gap:14px;padding:6px 0}
}

/* câu chuyện */
.story{padding-block:48px 8px;border-top:1px solid var(--line);scroll-margin-top:80px}
.story .tag{font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--orange-dark);text-transform:uppercase}
.story h3{font-size:clamp(24px,3vw,30px);color:var(--navy);line-height:1.22;margin:6px 0 18px}
.story .prose p{font-size:17px}
.lesson{margin:30px auto 0;max-width:700px;text-align:center;font-size:clamp(20px,2.5vw,24px);font-weight:700;font-style:italic;color:var(--navy);line-height:1.45}
.lesson::before{content:"“";display:block;font-size:56px;line-height:.6;color:var(--orange);font-style:normal;margin-bottom:10px}

/* chứng nhận */
.edu{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:baseline;padding-block:16px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.edu b{font-size:12px;letter-spacing:.18em;color:var(--orange-dark);margin-right:10px}
.edu span{font-weight:700;color:var(--navy)}
.certs{list-style:none;margin:0;padding:0}
.certs li{display:grid;grid-template-columns:160px minmax(0,1fr);gap:16px;padding:13px 0;border-bottom:1px solid var(--line)}
.certs .org{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--orange-dark);padding-top:3px}
.certs strong{color:var(--navy);display:block;font-size:16px}
.certs span{color:var(--muted);font-size:14px}
@media (max-width:520px){.certs li{grid-template-columns:1fr;gap:2px}}

/* thẻ chương trình chi tiết */
.prog{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.3fr);border:1px solid var(--line);border-radius:14px;overflow:hidden;scroll-margin-top:80px}
.prog-side{background:var(--cream);border-top:4px solid var(--orange);padding:26px;display:flex;flex-direction:column;gap:10px}
.prog-side small{font-size:12px;font-weight:800;letter-spacing:.18em;color:var(--orange-dark)}
.prog-side h3{font-size:22px;line-height:1.25;color:var(--navy)}
.prog-side p{font-size:14px;color:var(--muted)}
.prog-body{padding:26px;display:flex;flex-direction:column;gap:14px;min-width:0}
.prog-body .what{font-weight:700;color:var(--navy);line-height:1.5}
.dash{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.dash li{position:relative;padding-left:20px;color:var(--body);font-size:16px}
.dash li::before{content:"";position:absolute;left:0;top:13px;width:9px;height:2px;background:var(--orange)}
.result{background:var(--orange-soft);border-radius:8px;padding:12px 16px;font-size:15px;color:var(--navy);font-weight:600}
.result small{display:block;font-size:11px;font-weight:800;letter-spacing:.16em;color:var(--orange-dark)}
@media (max-width:640px){.prog{grid-template-columns:1fr}}

/* các bước theo hàng ngang */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(var(--n,5),minmax(0,1fr));gap:10px}
.steps li{border:1px solid var(--line);border-radius:12px;padding:14px;min-width:0}
.steps b{font-size:24px;font-weight:900;color:var(--orange);line-height:1;display:block}
.steps strong{color:var(--navy);font-size:15px;display:block;margin-top:6px;line-height:1.35}
.steps span{color:var(--muted);font-size:13px;line-height:1.45;display:block;margin-top:2px}
@media (max-width:760px){.steps{grid-template-columns:1fr}.steps li{display:grid;grid-template-columns:34px minmax(0,1fr);gap:10px;align-items:center}.steps strong{margin-top:0}}
.note{font-size:15px;color:var(--muted)}

/* lưới ô nhỏ */
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.grid3 div{border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.grid3 h3{font-size:17px;color:var(--navy);margin-bottom:4px}
.grid3 p{font-size:15px;color:var(--muted)}
@media (max-width:720px){.grid3{grid-template-columns:1fr}}
.bullets{list-style:none;margin:0;padding:0}
.bullets li{padding:12px 0 12px 28px;border-top:1px solid var(--line);position:relative;color:var(--navy);font-weight:600}
.bullets li:first-child{border-top:0}
.bullets li::before{content:"";position:absolute;left:4px;top:22px;width:10px;height:10px;border-radius:50%;background:var(--orange)}
.callout{background:var(--soft-bg);border-left:4px solid var(--navy-2);border-radius:0 10px 10px 0;padding:16px 20px;color:var(--body);font-size:16px}
.callout b{color:var(--navy)}

/* hỏi đáp */
.faq{display:flex;flex-direction:column;gap:10px}
details{background:var(--cream);border-radius:10px;padding:14px 18px}
details summary{cursor:pointer;font-weight:700;color:var(--navy);font-size:16px}
details[open] summary{margin-bottom:8px}
details p{color:var(--body);font-size:16px}

/* trang liên hệ */
.ways{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.ways div{border:1px solid var(--line);border-radius:12px;padding:18px 20px;display:flex;flex-direction:column;gap:6px}
.ways small{font-size:12px;color:var(--muted)}
.ways b{font-size:17px;color:var(--navy);word-break:break-word}
@media (max-width:560px){.ways{grid-template-columns:1fr}}
.profile-box{border:2px solid var(--orange);background:var(--orange-soft);border-radius:14px;padding:24px;display:flex;flex-direction:column;gap:12px;scroll-margin-top:80px}
.profile-box h2{font-size:24px;color:var(--navy)}
.profile-box ol{margin:0;padding-left:20px;color:var(--body)}
.copy{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.copy code{font:600 16px var(--sans);color:var(--navy);user-select:all;word-break:break-all}
.mini{font:600 13px var(--sans);background:#fff;color:var(--navy);border:1px solid var(--line);border-radius:6px;padding:6px 10px;cursor:pointer;min-height:34px}
.mini:hover{border-color:var(--orange)}

/* cuộn đến đâu hiện đến đó */
@media (prefers-reduced-motion:no-preference){
  .rv-on .rv{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
  .rv-on .rv.in{opacity:1;transform:none}
}

/* trích dẫn định nghĩa ICF */
.icf{margin:0;border-left:4px solid var(--orange);background:var(--cream);border-radius:0 12px 12px 0;padding:22px 26px;display:flex;flex-direction:column;gap:10px}
.icf p{font-size:clamp(19px,2.3vw,22px);font-weight:600;font-style:italic;color:var(--navy);line-height:1.5}
.icf footer{font-size:14px;font-weight:700;color:var(--orange-dark)}
.icf small{font-size:13px;color:var(--muted);line-height:1.5}