/* Reset cơ bản */
html{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body{margin:0}
img{max-width:100%}
[hidden]{display:none!important}

/* Layout: dải xanh VNPT xen nền trắng; số lớn cam ấm; thẻ bo góc nhẹ; một cột trên điện thoại, lưới trên máy tính */
:root{
  --brand:#2541A8;      /* xanh nền logo VNPT */
  --brand-deep:#152B7E;
  --blue:#0B5ED7;
  --blue-soft:#EAF1FF;
  --bg:#F4F7FC;
  --surface:#FFFFFF;
  --ink:#0F1B36;
  --muted:#4E5D78;
  --line:#D9E2F1;
  --accent:#FF9F2E;     /* cam trên nền xanh */
  --accent-ink:#C25E00; /* cam trên nền trắng */
  --good:#18864B;
  --good-soft:#E3F4EA;
  --warn-soft:#FFF0DD;
  --on-brand:#FFFFFF;
  --on-brand-muted:#C9D5FF;
  --f-display:"Barlow Condensed","Be Vietnam Pro",system-ui,sans-serif;
  --f-body:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.6;-webkit-text-size-adjust:100%}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--brand)}
h1,h2,h3{margin:0;text-wrap:balance}
p{margin:0}
ul{margin:0;padding-left:1.15em}
a{color:var(--blue)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums lining-nums}
.wrap{max-width:1160px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.section{padding-block:56px}
.section + .section{border-top:1px solid var(--line)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue)}
.h2{font-family:var(--f-display);font-weight:800;font-size:clamp(30px,5.4vw,46px);line-height:1.05;text-transform:uppercase;letter-spacing:.01em;color:var(--brand-deep)}
.head{display:flex;flex-direction:column;gap:8px;margin-bottom:28px}
.unit{font-size:13px;color:var(--muted)}
.unit b{color:var(--ink)}

/* NAV */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:var(--brand);box-shadow:0 2px 10px rgba(10,20,60,.25)}
.nav .wrap{display:flex;align-items:center;gap:16px;min-height:56px}
.nav .logo{height:28px;width:auto;flex:none;display:block}
.nav-links{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;min-width:0;flex:1;justify-content:flex-end}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a{flex:none;color:var(--on-brand);text-decoration:none;font-size:14px;font-weight:600;padding:8px 10px;border-radius:8px;white-space:nowrap}
.nav-links a:hover,.nav-links a.on{background:rgba(255,255,255,.14)}
@media (max-width:760px){.nav .wrap{flex-direction:column;align-items:stretch;gap:0;padding-block:8px 4px}.nav .logo{height:24px}.nav-links{justify-content:flex-start;margin-inline:-10px}}

/* HERO */
.hero{background:linear-gradient(160deg,var(--brand-deep) 0%,var(--brand) 60%,#2C55C9 100%);color:var(--on-brand)}
.hero .wrap{padding-block:28px 40px;display:flex;flex-direction:column;gap:22px}
.banner{width:100%;height:auto;border-radius:12px;display:block;box-shadow:0 6px 24px rgba(0,0,0,.25)}
.hero .label{font-size:14px;font-weight:700;letter-spacing:.2em;color:var(--on-brand-muted)}
.hero h1{font-family:var(--f-display);font-weight:800;font-size:clamp(48px,11vw,104px);line-height:.92;letter-spacing:.005em}
.hero .sub{font-size:clamp(17px,2.4vw,21px);font-weight:500;max-width:36ch;color:var(--on-brand)}
.hero-figure{display:flex;flex-direction:column;gap:6px;padding:20px;border-radius:16px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18)}
.hero-figure .big{display:flex;flex-wrap:wrap;align-items:baseline;font-family:var(--f-display);font-weight:800;color:var(--accent);font-size:clamp(64px,15vw,132px);line-height:.9}
.hero-figure .big small{font-family:var(--f-body);font-size:clamp(16px,2.6vw,22px);font-weight:600;color:var(--on-brand);margin-left:8px;letter-spacing:0}
.hero-figure p{color:var(--on-brand-muted);font-size:15px;max-width:60ch}
.hero .tagline{font-size:16px;color:var(--on-brand);max-width:60ch}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:999px;font-weight:700;font-size:16px;text-decoration:none;border:2px solid var(--accent)}
.btn.primary{background:var(--accent);color:var(--brand-deep)}
.btn.ghost{color:var(--on-brand);border-color:rgba(255,255,255,.55)}
.btn:hover{filter:brightness(1.06)}
.countdown{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:14px;color:var(--on-brand-muted)}
.cd{display:flex;gap:8px}
.cd div{min-width:64px;padding:8px 10px;border-radius:10px;background:rgba(0,0,0,.18);text-align:center;line-height:1.1}
.cd b{display:block;font-family:var(--f-display);font-size:30px;font-weight:700;color:var(--on-brand)}
.cd span{font-size:12px}
.hero .doc{font-size:13px;color:var(--on-brand-muted);border-top:1px solid rgba(255,255,255,.18);padding-top:14px}

/* STAT CARDS */
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
@media (max-width:760px){.stats{grid-template-columns:1fr}}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:4px}
.stat .k{font-size:14px;color:var(--muted);font-weight:600}
.stat .v{font-family:var(--f-display);font-weight:800;font-size:clamp(44px,7vw,60px);line-height:1;color:var(--accent-ink)}
.stat .n{font-size:13px;color:var(--muted)}

/* TABLE -> CARDS */
.tbl-box{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-top:24px}
table.rt{width:100%;border-collapse:collapse;font-size:15px}
.rt th{text-align:left;font-size:13px;font-weight:700;color:var(--muted);background:var(--blue-soft);padding:12px 14px;white-space:nowrap}
.rt td{padding:12px 14px;border-top:1px solid var(--line);vertical-align:middle}
.rt td.r,.rt th.r{text-align:right}
.bar{position:relative;display:flex;align-items:center;gap:10px;min-width:180px}
.bar .track{flex:1;height:12px;border-radius:6px;background:var(--blue-soft);overflow:hidden}
.bar .fill{height:100%;border-radius:6px;background:var(--blue)}
.bar.warn .fill{background:var(--accent)}
.bar b{min-width:64px;text-align:right;font-variant-numeric:tabular-nums}
.chip{display:inline-block;padding:2px 10px;border-radius:999px;font-weight:700;font-variant-numeric:tabular-nums;background:var(--blue-soft);color:var(--ink)}
.chip.good{background:var(--good-soft);color:var(--good)}
.chip.warn{background:var(--warn-soft);color:var(--accent-ink)}
.legend{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--muted);padding:12px 14px;border-top:1px solid var(--line)}
.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;vertical-align:-1px;margin-right:6px}
@media (max-width:760px){
  table.rt,.rt tbody,.rt tr,.rt td{display:block;width:100%}
  .rt thead{display:none}
  .rt tr{padding:14px 16px;border-top:1px solid var(--line)}
  .rt tr:first-child{border-top:none}
  .rt td{border:none;padding:4px 0;display:flex;justify-content:space-between;align-items:center;gap:12px;text-align:right}
  .rt td::before{content:attr(data-label);font-size:13px;color:var(--muted);text-align:left;flex:none}
  .rt td.name{font-weight:700;font-size:16px;display:block;text-align:left;padding-bottom:6px}
  .rt td.name::before{content:none}
  .rt td .bar{flex:1;min-width:0;max-width:240px}
}
.callouts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:20px}
@media (max-width:760px){.callouts{grid-template-columns:1fr}}
.callout{border-radius:14px;padding:18px 20px;display:flex;flex-direction:column;gap:10px}
.callout.good{background:var(--good-soft)}
.callout.warn{background:var(--warn-soft)}
.callout h3{font-size:15px;font-weight:700;text-transform:uppercase;letter-spacing:.06em}
.callout.good h3{color:var(--good)}
.callout.warn h3{color:var(--accent-ink)}
.callout ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:6px}
.callout li{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed rgba(0,0,0,.12);padding-bottom:6px}
.callout li:last-child{border-bottom:none;padding-bottom:0}
.callout li b{font-variant-numeric:tabular-nums;white-space:nowrap}

/* TARGETS */
.target-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:20px;align-items:stretch}
@media (max-width:860px){.target-top{grid-template-columns:1fr}}
.target-big{background:var(--brand);color:var(--on-brand);border-radius:16px;padding:24px;display:flex;flex-direction:column;justify-content:center;gap:8px}
.target-big .v{font-family:var(--f-display);font-weight:800;font-size:clamp(64px,12vw,104px);line-height:.9;color:var(--accent)}
.target-big .k{font-size:15px;color:var(--on-brand-muted)}
.target-big .sub{font-size:16px;border-top:1px solid rgba(255,255,255,.2);padding-top:10px;margin-top:6px}
.target-big .sub b{font-family:var(--f-display);font-size:28px;color:var(--on-brand)}
.chart{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:12px}
.chart h3{font-size:15px;font-weight:700}
.cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;align-items:end;height:250px;border-bottom:2px solid var(--line)}
.col{display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;gap:6px;min-width:0}
.col b{font-size:clamp(13px,2.6vw,16px);font-variant-numeric:tabular-nums;white-space:nowrap}
.col .c{width:100%;max-width:84px;border-radius:8px 8px 0 0;background:var(--blue)}
.col.last .c{background:var(--accent)}
.col-labels{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;text-align:center;font-size:14px;font-weight:600;color:var(--muted)}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,200px),1fr));gap:12px;margin-top:20px}
.tile{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:4px}
.tile .k{font-size:14px;color:var(--muted);font-weight:600;line-height:1.35}
.tile .v{font-family:var(--f-display);font-weight:800;font-size:40px;line-height:1;color:var(--accent-ink)}
.yearstrip{margin-top:20px;border-radius:14px;background:var(--brand-deep);color:var(--on-brand);padding:18px 22px;display:flex;flex-wrap:wrap;align-items:center;gap:10px 28px}
.yearstrip .lbl{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--on-brand-muted)}
.yearstrip .it{display:flex;align-items:baseline;gap:8px}
.yearstrip .it b{font-family:var(--f-display);font-size:34px;font-weight:800;color:var(--accent);line-height:1}
.yearstrip .it span{font-size:14px;color:var(--on-brand-muted)}

/* SPEARHEADS */
.spears{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
@media (max-width:860px){.spears{grid-template-columns:1fr}}
.spear{background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.spear header{background:var(--brand);color:var(--on-brand);padding:16px 20px;display:flex;flex-direction:column;gap:2px}
.spear header .tag{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--on-brand-muted);font-weight:700}
.spear header h3{font-family:var(--f-display);font-size:28px;font-weight:800;text-transform:uppercase;line-height:1.05}
.spear header .who{font-size:15px;font-weight:600}
.spear .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:14px}
.kpis{display:flex;flex-wrap:wrap;gap:10px}
.kpi{background:var(--blue-soft);border-radius:10px;padding:10px 12px;display:flex;flex-direction:column;min-width:0}
.kpi span{font-size:12px;color:var(--muted);font-weight:600;line-height:1.3}
.kpi b{font-family:var(--f-display);font-size:30px;font-weight:800;line-height:1.05;color:var(--accent-ink)}
.kpi em{font-style:normal;font-size:12px;color:var(--muted)}
.spear ul{display:flex;flex-direction:column;gap:6px;font-size:15px}
.spear li::marker{color:var(--blue)}
.hl{background:var(--warn-soft);padding:0 4px;border-radius:4px;font-weight:700}

/* GOODS */
.goods{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
@media (max-width:760px){.goods{grid-template-columns:1fr}}
.gcard{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;display:grid;grid-template-columns:52px minmax(0,1fr);gap:4px 16px}
.gcard .ic{grid-row:span 4;width:52px;height:52px;border-radius:12px;background:var(--blue-soft);display:grid;place-items:center;color:var(--blue)}
.gcard .ic svg{width:28px;height:28px}
.gcard .row{display:flex;flex-direction:column;gap:2px;padding-block:6px;border-bottom:1px solid var(--line)}
.gcard .row:last-child{border-bottom:none}
.gcard .row span{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.gcard .row p{font-size:15px}
.gcard .row.sol p{font-weight:700;color:var(--brand-deep)}

/* PRINCIPLES */
.band{background:var(--brand-deep);color:var(--on-brand)}
.band .wrap{padding-block:56px;display:flex;flex-direction:column;gap:22px;text-align:center;align-items:center}
.band .eyebrow{color:var(--on-brand-muted)}
.band .slogan{font-family:var(--f-display);font-weight:800;font-size:clamp(34px,7vw,64px);line-height:1;text-transform:uppercase;display:flex;flex-wrap:wrap;justify-content:center;gap:4px 18px}
.band .slogan span:nth-child(even){color:var(--accent)}
@media (max-width:760px){.band .slogan{flex-direction:column;gap:6px}.band .slogan span:nth-child(even){display:none}.band .slogan span:nth-child(3){color:var(--accent)}}
.band p{font-size:clamp(17px,2.4vw,21px);max-width:48ch}
.band p strong{color:var(--accent)}

/* WHO DOES WHAT */
.acc-tools{display:flex;justify-content:flex-end;margin-bottom:10px}
.linkbtn{background:none;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font:600 14px var(--f-body);color:var(--blue);cursor:pointer}
.acc{display:flex;flex-direction:column;gap:10px}
.acc details{background:var(--surface);border:1px solid var(--line);border-radius:12px}
.acc summary{cursor:pointer;list-style:none;padding:16px 18px;display:flex;justify-content:space-between;align-items:center;gap:12px;font-weight:700;font-size:16px;color:var(--brand-deep)}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:"+";font-size:24px;line-height:1;color:var(--blue);flex:none}
.acc details[open] summary::after{content:"–"}
.acc details[open] summary{border-bottom:1px solid var(--line)}
.acc .ct{padding:14px 18px 18px;font-size:15px;max-width:80ch}

/* RHYTHM */
.rhythm{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
@media (max-width:860px){.rhythm{grid-template-columns:1fr}}
.beat{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:10px}
.beat .ic{width:48px;height:48px;border-radius:50%;background:var(--accent);color:var(--brand-deep);display:grid;place-items:center}
.beat .ic svg{width:24px;height:24px}
.beat h3{font-family:var(--f-display);font-size:26px;font-weight:800;text-transform:uppercase;color:var(--brand-deep);line-height:1.05}
.beat p{font-size:15px}

/* CONTACTS */
.main-contact{background:var(--brand);color:var(--on-brand);border-radius:16px;padding:20px 22px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px 24px}
.main-contact .k{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--on-brand-muted)}
.main-contact .n{font-size:20px;font-weight:700}
.main-contact .tel{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--brand-deep);text-decoration:none;font-weight:800;font-size:20px;padding:10px 18px;border-radius:999px;font-variant-numeric:tabular-nums}
table.ct{width:100%;border-collapse:collapse;font-size:14px}
.ct th{text-align:left;font-size:13px;color:var(--muted);background:var(--blue-soft);padding:12px 14px}
.ct td{padding:14px;border-top:1px solid var(--line);vertical-align:top}
.ct td.f{font-weight:700;color:var(--brand-deep);width:20%}
.p{display:flex;flex-direction:column;gap:2px}
.p + .p{margin-top:12px}
.p .nm{font-weight:700}
.p .rl{font-size:13px;color:var(--muted)}
.p a{text-decoration:none;font-variant-numeric:tabular-nums;word-break:break-all}
.p a.t{font-weight:700}
@media (max-width:860px){
  table.ct,.ct tbody,.ct tr,.ct td{display:block;width:100%}
  .ct thead{display:none}
  .ct tr{padding:16px;border-top:1px solid var(--line)}
  .ct tr:first-child{border-top:none}
  .ct td{border:none;padding:8px 0}
  .ct td.f{width:100%;font-size:16px;padding-top:0}
  .ct td[data-label]::before{content:attr(data-label);display:block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
  .ct td + td{border-top:1px dashed var(--line)}
}

/* FOOTER */
footer{background:var(--brand-deep);color:var(--on-brand-muted);font-size:14px}
footer .wrap{padding-block:36px 48px;display:flex;flex-direction:column;gap:16px}
footer .brand{display:flex;align-items:center;gap:14px;color:var(--on-brand);font-weight:700;font-size:18px}
footer .brand img{height:30px;width:auto;border-radius:6px}
footer h4{margin:0;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--on-brand)}
footer ul{display:flex;flex-direction:column;gap:4px}
footer .internal{font-size:12px;letter-spacing:.08em;text-transform:uppercase;border-top:1px solid rgba(255,255,255,.16);padding-top:14px}

.totop{position:fixed;right:calc(16px + env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:40;width:48px;height:48px;border-radius:50%;border:none;background:var(--accent);color:var(--brand-deep);box-shadow:0 4px 16px rgba(0,0,0,.25);cursor:pointer;display:grid;place-items:center;transition:opacity .2s,transform .2s}
.totop svg{width:22px;height:22px}
.totop.off{opacity:0;pointer-events:none;transform:translateY(8px)}

/* Màn chiếu lớn */
@media (min-width:1600px){body{font-size:18px}.wrap{max-width:1360px}.rt,.spear ul,.acc .ct,.beat p,.gcard .row p{font-size:17px}}