:root{
  --top-h:60px;
  --green:#006738; --green-2:#38b449; --green-3:#8cc63e; --gray:#58585b; --yellow:#FFFF00;
  --bg:#ffffff; --bg-soft:#f4f8f5; --card:#ffffff; --line:#dfe8e2; --text:#1d2a22; --muted:#58585b;
  --accent:#006738; --accent-soft:#e6f3ea; --warn-bg:#fff7e6; --warn-line:#f0c46c; --warn-text:#7a4b00;
  --bad-bg:#fdeeee; --bad-line:#e9a3a3; --bad-text:#8a1f1f; --code-bg:#0f1f17; --code-text:#d8f3df;
  --shadow:0 1px 2px rgba(0,40,20,.06),0 6px 24px rgba(0,40,20,.06);
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0c1511; --bg-soft:#101d17; --card:#13221b; --line:#22382c; --text:#e6f0ea; --muted:#a9b8af;
  --accent:#8cc63e; --accent-soft:#1a3326; --warn-bg:#2a2210; --warn-line:#6b5420; --warn-text:#f3d28a;
  --bad-bg:#2c1414; --bad-line:#6e2a2a; --bad-text:#f2b0b0; --code-bg:#07100b; --shadow:none;
}}
:root[data-theme="dark"]{
  --bg:#0c1511; --bg-soft:#101d17; --card:#13221b; --line:#22382c; --text:#e6f0ea; --muted:#a9b8af;
  --accent:#8cc63e; --accent-soft:#1a3326; --warn-bg:#2a2210; --warn-line:#6b5420; --warn-text:#f3d28a;
  --bad-bg:#2c1414; --bad-line:#6e2a2a; --bad-text:#f2b0b0; --code-bg:#07100b; --shadow:none;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--top-h) + 70px)}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 "Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:3px}
code,kbd{font-family:"JetBrains Mono",ui-monospace,monospace;font-size:.88em;background:var(--accent-soft);padding:.1em .38em;border-radius:5px}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}

/* Top bar */
.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:16px;min-height:60px}
.logo{display:flex;align-items:center;background:#fff;border-radius:10px;padding:4px 10px;height:44px;flex:none}
.logo img{height:36px;width:auto;display:block}
.top nav{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;margin-left:auto}
.top nav::-webkit-scrollbar{display:none}
.top nav a{white-space:nowrap;color:var(--muted);text-decoration:none;font-size:14px;font-weight:500;padding:6px 10px;border-radius:8px}
.top nav a:hover,.top nav a.on{color:var(--accent);background:var(--accent-soft)}
.theme{flex:none;border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:8px;padding:6px 10px;font:inherit;font-size:13px;cursor:pointer}

/* Hero */
.hero{background:linear-gradient(135deg,#006738 0%,#0b7a43 55%,#38b449 130%);color:#fff;padding:64px 0 56px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(140,198,62,.35),transparent 70%)}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#dff5d0;border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:4px 12px}
.hero h1{font-size:clamp(30px,5.2vw,52px);line-height:1.12;margin:18px 0 14px;font-weight:800;letter-spacing:-.02em}
.hero h1 .y{color:var(--yellow)}
.hero p.lead{font-size:clamp(16px,2vw,19px);max-width:720px;color:#e9f6ee;margin:0 0 26px}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;text-decoration:none;border-radius:10px;padding:11px 18px;font-size:15px}
.btn.pri{background:#fff;color:#006738}
.btn.sec{color:#fff;border:1px solid rgba(255,255,255,.45)}
.btn:hover{filter:brightness(1.05)}

/* Sections */
section{padding:56px 0;border-bottom:1px solid var(--line)}
section.soft{background:var(--bg-soft)}
.lvl{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.badge{flex:none;display:inline-grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--green);color:#fff;font-weight:800;font-size:18px}
.lvl small{color:var(--muted);font-weight:600;letter-spacing:.04em;text-transform:uppercase;font-size:12.5px}
h2{font-size:clamp(24px,3.4vw,32px);line-height:1.2;margin:4px 0 12px;letter-spacing:-.01em}
h3{font-size:18px;margin:26px 0 10px}
.sub{color:var(--muted);max-width:760px;margin:0 0 22px}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;box-shadow:var(--shadow)}
.card h4{margin:0 0 6px;font-size:16px}
.card p{margin:0;color:var(--muted);font-size:15px}
.card .k{font-size:12px;font-weight:700;color:var(--accent);letter-spacing:.05em;text-transform:uppercase}
ol.steps{counter-reset:s;list-style:none;padding:0;margin:0}
ol.steps li{counter-increment:s;position:relative;padding:0 0 14px 44px}
ol.steps li:before{content:counter(s);position:absolute;left:0;top:1px;width:28px;height:28px;border-radius:8px;background:var(--accent-soft);color:var(--accent);font-weight:700;display:grid;place-items:center;font-size:14px}
ul.clean{padding-left:20px;margin:6px 0}
ul.clean li{margin:5px 0}
.note{border-radius:12px;padding:14px 16px;margin:18px 0;font-size:15px;border:1px solid}
.note.tip{background:var(--accent-soft);border-color:color-mix(in srgb,var(--accent) 35%,transparent)}
.note.warn{background:var(--warn-bg);border-color:var(--warn-line);color:var(--warn-text)}
.note.bad{background:var(--bad-bg);border-color:var(--bad-line);color:var(--bad-text)}
.note b:first-child{display:block;margin-bottom:2px}
.done{display:flex;gap:10px;align-items:flex-start;margin-top:18px;padding:12px 14px;border-left:4px solid var(--green-2);background:var(--card);border-radius:0 10px 10px 0;font-size:15px}
.done strong{color:var(--accent);white-space:nowrap}

/* Table */
.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--card)}
table{border-collapse:collapse;width:100%;font-size:14.5px;min-width:560px}
th{background:#006738;color:#fff;text-align:left;font-weight:600;padding:10px 14px}
td{padding:10px 14px;border-top:1px solid var(--line);vertical-align:top}
td:first-child{font-weight:600}

/* Code template */
.tpl{position:relative;background:var(--code-bg);color:var(--code-text);border-radius:12px;padding:44px 18px 16px;margin:12px 0;font:13.5px/1.6 "JetBrains Mono",ui-monospace,monospace;white-space:pre-wrap;overflow-x:auto}
.copy{position:absolute;top:10px;right:10px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);color:#fff;border-radius:7px;padding:4px 10px;font:12px "Be Vietnam Pro",sans-serif;cursor:pointer}
.copy:hover{background:rgba(255,255,255,.18)}

/* Path chooser */
.path .card{border-top:4px solid var(--green-2)}
.path .card:nth-child(2){border-top-color:var(--green-3)}
.path .card:nth-child(3){border-top-color:var(--green)}
.path a{font-weight:600;font-size:14px}

/* Tips */
.tips{counter-reset:t}
.tips .card{position:relative;padding-left:56px}
.tips .card:before{counter-increment:t;content:counter(t,decimal-leading-zero);position:absolute;left:18px;top:17px;font-weight:800;color:var(--green-2);font-size:18px}

/* Checklist */
.check{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.check label{display:flex;gap:12px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 14px;cursor:pointer;font-size:15px}
.check input{margin-top:4px;width:18px;height:18px;accent-color:#38b449;flex:none}
.check input:checked+span{color:var(--muted);text-decoration:line-through}
.progress{height:8px;background:var(--line);border-radius:99px;overflow:hidden;margin:14px 0 6px}
.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,#38b449,#8cc63e);transition:width .25s}

/* FAQ */
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:0 18px;margin:10px 0}
summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none;position:relative;padding-right:28px}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";position:absolute;right:0;top:12px;font-size:22px;color:var(--accent);font-weight:400}
details[open] summary:after{content:"–"}
details p,details ul{margin:0 0 14px;color:var(--muted)}

/* Footer */
footer{background:#006738;color:#e3f3e8;padding:40px 0;font-size:14.5px}
footer .wrap{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
footer .brand{color:var(--yellow);font-weight:800;font-size:18px}
footer a{color:#fff}
.src{font-size:14px}
.src li{margin:4px 0}
@media (max-width:640px){
  .hero{padding:44px 0 40px}
  section{padding:40px 0}
  :root{--top-h:100px}
  .top .wrap{flex-wrap:wrap;row-gap:2px;padding-top:8px;padding-bottom:6px}
  .top nav{order:3;width:100%;margin-left:0}
  .top nav{justify-content:space-between;gap:0}
  .top nav a{font-size:13.5px;padding:6px 8px}
  .theme{margin-left:auto}
  .tips .card{padding-left:50px}
}
@media print{.top,.copy,.theme{display:none}section{break-inside:avoid}}

/* ---- Trang phong ban ---- */
.hero.sm{padding:44px 0 40px}
.hero .crumb{color:#dff5d0;font-size:14px;text-decoration:none;font-weight:500}
.hero .crumb:hover{text-decoration:underline}
.pill{display:inline-block;font-size:12.5px;font-weight:600;padding:2px 10px;border-radius:99px;background:var(--accent-soft);color:var(--accent);white-space:nowrap}
.uc{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px 24px;margin:16px 0;box-shadow:var(--shadow)}
.uc-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:8px}
.uc-num{flex:none;width:34px;height:34px;border-radius:10px;background:var(--green);color:#fff;font-weight:800;display:grid;place-items:center;font-size:15px}
.uc h3{margin:3px 0 0;font-size:19px;line-height:1.3}
.uc .when{color:var(--muted);margin:0 0 12px;font-size:15px}
.uc ol.steps li{padding-bottom:8px;font-size:15px}
.meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px;margin-top:8px}
.meta div{background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:14px}
.meta b{display:block;font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--accent);margin-bottom:2px}
.dept{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.dept a.card{display:block;text-decoration:none;color:inherit;border-top:4px solid var(--green-2);transition:transform .15s,border-color .15s}
.dept a.card:hover{transform:translateY(-2px);border-top-color:var(--green)}
.dept a.card.cur{border-top-color:var(--gray);opacity:.6;pointer-events:none}
.dept .go{display:block;margin-top:10px;font-weight:600;font-size:14px;color:var(--accent)}
ul.guard{list-style:none;padding:0;margin:0;display:grid;gap:10px}
ul.guard li{background:var(--bad-bg);border:1px solid var(--bad-line);color:var(--bad-text);border-radius:10px;padding:12px 14px;font-size:15px}
@media (max-width:640px){.uc{padding:18px 16px}.uc h3{font-size:17px}}

/* ---- Tab lo trinh ---- */
.tabs{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;position:sticky;top:var(--top-h);z-index:10;
  background:var(--bg-soft);padding:12px 0;margin:6px 0 24px;border-bottom:1px solid var(--line)}
.tabs::-webkit-scrollbar{display:none}
.tab{flex:none;display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--card);
  color:var(--muted);border-radius:999px;padding:6px 16px 6px 7px;font:inherit;font-size:14.5px;font-weight:600;cursor:pointer}
.tab b{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-size:13px}
.tab:hover{color:var(--text)}
.tab[aria-selected="true"]{background:#006738;border-color:#006738;color:#fff}
.tab[aria-selected="true"] b{background:rgba(255,255,255,.22);color:#fff}
.tab:focus-visible,.btn-next:focus-visible{outline:3px solid var(--green-3);outline-offset:2px}
.panel[hidden]{display:none}
.panel + .panel{margin-top:56px}
.panel[hidden] + .panel,.panel + .panel[hidden]{margin-top:0}
.pager{display:flex;justify-content:flex-end;margin-top:24px}
.btn-next{border:0;background:#006738;color:#fff;border-radius:10px;padding:11px 18px;font:inherit;font-weight:600;font-size:15px;cursor:pointer}
.btn-next:hover{filter:brightness(1.1)}
/* ---- Thanh chuyen phong ban ---- */
.subbar{border-bottom:1px solid var(--line);background:var(--bg)}
.subbar .wrap{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding-top:12px;padding-bottom:12px}
.subbar .wrap::-webkit-scrollbar{display:none}
.subbar a{flex:none;text-decoration:none;font-size:14px;font-weight:600;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:5px 14px}
.subbar a:hover{color:var(--text)}
.subbar a.on{background:#006738;border-color:#006738;color:#fff}
/* ---- Nhom trong trang phong ban ---- */
tr.grp td{background:var(--accent-soft);color:var(--accent);font-size:12.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:7px 14px}
.grp-title{margin:34px 0 4px;font-size:15px;letter-spacing:.05em;text-transform:uppercase;color:var(--accent)}