/* Layout: 1 cột cuộn dọc, motif "đường đua 4 chặng" T9 → T12 về đích 31/12; xanh VNPT chủ đạo, cam chỉ cho số mục tiêu / thanh tiến độ / CTA */
:root{
  --blue:#0066B3; --blue-ink:#0066B3; --blue-deep:#003F70; --blue-soft:#EAF3FB; --blue-line:#C9DFF2;
  --bg:#FFFFFF; --bg-alt:#F3F8FD; --card:#FFFFFF; --ink:#1F2A37; --muted:#556271; --line:#DCE6F0;
  --accent:#EF7D00; --accent-ink:#C25E00; --accent-soft:#FDEBD6;
  --good:#1E8A3E; --good-soft:#E3F3E7; --warn:#B85400; --warn-soft:#FDEBD6;
  --band:#003F70; --band-ink:#FFFFFF;
  --f:"Be Vietnam Pro", "Segoe UI", Roboto, Arial, sans-serif;
  --nav-h:60px;
}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){
  --blue:#2F8FDB; --blue-ink:#7CBDF0; --blue-deep:#0B2C4A; --blue-soft:#11263B; --blue-line:#24476A;
  --bg:#0D1722; --bg-alt:#111F2D; --card:#152536; --ink:#E7EEF5; --muted:#A3B2C2; --line:#24384D;
  --accent:#FF9A2E; --accent-ink:#FFAE57; --accent-soft:#3A2712;
  --good:#5BC27A; --good-soft:#15301E; --warn:#FFA94D; --warn-soft:#3A2712;
  --band:#0A3358; --band-ink:#FFFFFF; color-scheme:dark }}
:root[data-theme="dark"]{
  --blue:#2F8FDB; --blue-ink:#7CBDF0; --blue-deep:#0B2C4A; --blue-soft:#11263B; --blue-line:#24476A;
  --bg:#0D1722; --bg-alt:#111F2D; --card:#152536; --ink:#E7EEF5; --muted:#A3B2C2; --line:#24384D;
  --accent:#FF9A2E; --accent-ink:#FFAE57; --accent-soft:#3A2712;
  --good:#5BC27A; --good-soft:#15301E; --warn:#FFA94D; --warn-soft:#3A2712;
  --band:#0A3358; --band-ink:#FFFFFF; color-scheme:dark }

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--f);font-size:16px;line-height:1.6;margin:0}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--card)}
h1,h2,h3{text-wrap:balance;margin:0;line-height:1.2}
p{margin:0}
.num{font-variant-numeric:tabular-nums}
.wrap{max-width:1180px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
section{scroll-margin-top:calc(var(--nav-h) + 52px)}
.sec{padding-block:56px}
.sec.alt{background:var(--bg-alt)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue-ink)}
.sec-head{display:flex;flex-direction:column;gap:8px;margin-bottom:28px;max-width:820px}
.sec-head h2{font-size:clamp(24px,3.4vw,38px);font-weight:800;text-transform:uppercase;letter-spacing:-.005em}
.sec-head p{color:var(--muted);font-size:17px}
.src{font-size:13px;color:var(--muted);margin-top:14px}
.ph{display:inline-flex;align-items:center;justify-content:center;border:1.5px dashed var(--accent-ink);color:var(--accent-ink);background:var(--accent-soft);font-size:11px;font-weight:700;line-height:1.2;text-align:center;border-radius:6px;padding:4px 8px}
.ico{width:26px;height:26px;flex:none;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

/* NAV */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:var(--card);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:16px;min-height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;white-space:nowrap}
.logo{height:34px;width:auto;border-radius:8px;display:block}
.banner{display:block;width:100%;height:auto;border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.menu{display:flex;gap:4px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.menu::-webkit-scrollbar{display:none}
.menu a{color:var(--ink);text-decoration:none;font-size:14px;font-weight:600;padding:8px 10px;border-radius:8px;white-space:nowrap}
.menu a:hover,.menu a.on{color:var(--blue-ink);background:var(--blue-soft)}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--f);font-weight:700;font-size:15px;padding:12px 20px;border-radius:999px;text-decoration:none;border:2px solid transparent;cursor:pointer;white-space:nowrap}
.btn-acc{background:var(--accent);color:#1B1206}
.btn-acc:hover{filter:brightness(1.06)}
.btn-ghost{border-color:currentColor;color:#FFFFFF;background:transparent}
.nav .btn{padding:9px 16px;font-size:14px}
@media (max-width:900px){
  .nav .wrap{flex-wrap:wrap;gap:0 12px;padding-top:8px}
  .menu{order:3;width:100%;margin:0 -4px;padding-bottom:6px}
  .nav .btn{margin-left:auto}
  section{scroll-margin-top:118px}
}

/* HERO */
.hero{background:linear-gradient(160deg,#0066B3 0%,#004E8C 60%,#003F70 100%);color:#FFFFFF;padding-block:52px 44px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:auto -10% -40% auto;width:70%;aspect-ratio:1;border-radius:50%;border:2px solid rgba(255,255,255,.08);pointer-events:none}
.hero .wrap{position:relative;z-index:1;display:flex;flex-direction:column;gap:22px}
.hero .tag{font-size:13px;font-weight:700;letter-spacing:.16em;color:#CFE6FA}
.hero h1{font-size:clamp(38px,8vw,96px);font-weight:800;letter-spacing:-.02em;line-height:1.02}
.hero .lead{font-size:clamp(16px,1.9vw,20px);max-width:760px;color:#E4F0FB}
.big{display:flex;flex-direction:column;gap:4px}
.big .v{font-size:clamp(52px,10vw,120px);font-weight:800;color:#FFB04D;letter-spacing:-.02em;line-height:1}
.big .v small{font-size:.26em;font-weight:700;color:#FFFFFF;letter-spacing:0;margin-left:10px}
.big .l{font-size:15px;color:#CFE6FA;max-width:620px}
.kpis{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;max-width:900px}
.kpi{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:14px 16px;display:flex;flex-direction:column;gap:4px}
.kpi .v{font-size:clamp(22px,3vw,34px);font-weight:800}
.kpi .l{font-size:13px;color:#CFE6FA;line-height:1.35}
.kpi .v.good{color:#8FE3A8}
.ctas{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:620px){.kpis{grid-template-columns:1fr}.kpi{flex-direction:row;align-items:baseline;justify-content:space-between;gap:12px}.kpi .l{order:-1}}

/* Racetrack motif */
.track{list-style:none;margin:6px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr) auto;position:relative;max-width:900px}
.track::before{content:"";position:absolute;left:14px;right:28px;top:13px;height:6px;border-radius:3px;background:repeating-linear-gradient(90deg,rgba(255,255,255,.55) 0 18px,transparent 18px 30px)}
.track li{position:relative;display:flex;flex-direction:column;gap:8px;font-size:14px;font-weight:600;color:#E4F0FB}
.track .dot{width:32px;height:32px;border-radius:50%;background:#FFFFFF;color:#0066B3;display:grid;place-items:center;font-weight:800;font-size:13px;position:relative;z-index:1;box-shadow:0 0 0 4px rgba(255,255,255,.18)}
.track .fin .dot{background:var(--accent);color:#1B1206;width:36px;height:36px;margin-top:-2px}
.track .fin{align-items:flex-end;text-align:right;color:#FFFFFF}
.track .fin svg{width:18px;height:18px}
@media (max-width:480px){.track li{font-size:12px}}

/* Cards generic */
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:1000px){.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;display:flex;flex-direction:column;gap:10px;min-width:0}
.card h3{font-size:16px;font-weight:700}
.card .top{display:flex;align-items:center;gap:10px;color:var(--blue-ink)}
.card .top h3{color:var(--ink)}
.bar{height:10px;border-radius:5px;background:var(--blue-soft);overflow:hidden;position:relative}
.bar i{display:block;height:100%;background:var(--accent);border-radius:5px;width:var(--w);transition:width 1s ease}
.row{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:14px;color:var(--muted);flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;gap:4px;font-size:13px;font-weight:700;padding:3px 10px;border-radius:999px;white-space:nowrap}
.chip.good{background:var(--good-soft);color:var(--good)}
.chip.warn{background:var(--warn-soft);color:var(--warn)}
.val{font-size:26px;font-weight:800;line-height:1.1}
.val small{font-size:13px;font-weight:600;color:var(--muted);margin-left:4px}

/* KPI big cards */
.kpi-big{padding:24px;border-top:4px solid var(--blue)}
.kpi-big .val{font-size:clamp(34px,4.6vw,52px);color:var(--blue-ink)}
.kpi-big .stats{display:flex;gap:24px;flex-wrap:wrap}
.kpi-big .stats div{display:flex;flex-direction:column;gap:2px;font-size:13px;color:var(--muted)}
.kpi-big .stats b{font-size:22px;color:var(--ink)}

/* Horizontal bar chart */
.hchart{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;margin-top:24px}
.hchart h3{font-size:17px;font-weight:700;margin-bottom:4px}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-bottom:16px}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend .sw{width:14px;height:10px;border-radius:3px;background:var(--accent)}
.legend .rl{width:2px;height:14px;background:var(--blue-ink)}
.hb{display:grid;grid-template-columns:230px minmax(0,1fr) 70px;align-items:center;gap:6px 14px;font-size:14px;padding:6px 0}
.hb .n{font-weight:600}
.hb .t{position:relative;height:18px;background:var(--blue-soft);border-radius:4px}
.hb .t i{position:absolute;left:0;top:0;bottom:0;width:var(--w);background:var(--accent);border-radius:4px;transition:width 1s ease}
.hb .p{font-weight:700;text-align:right}
.hb-axis{display:grid;grid-template-columns:230px minmax(0,1fr) 70px;gap:14px;font-size:12px;color:var(--muted)}
.hb-axis .ax{position:relative;height:16px}
.hb-axis .ax span{position:absolute;transform:translateX(-50%)}
.hb-axis .ax span:first-child{transform:none}.hb-axis .ax span:last-child{transform:translateX(-100%)}
.hplot{position:relative;margin-top:30px}
.refline{position:absolute;top:-6px;bottom:-4px;width:0;border-left:2px dashed var(--blue-ink);pointer-events:none}
.refline b{position:absolute;top:-22px;left:-4px;font-size:12px;color:var(--blue-ink);white-space:nowrap}
@media (max-width:700px){
  .hb,.hb-axis{grid-template-columns:minmax(0,1fr) 62px}
  .hb .n{grid-column:1/-1;margin-bottom:-4px}
  .hb-axis>span:first-child{display:none}
}

/* Section 3 */
.target-wrap{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:20px;align-items:stretch}
@media (max-width:900px){.target-wrap{grid-template-columns:1fr}}
.vchart{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:10px}
.vchart h3{font-size:17px;font-weight:700}
.cols{position:relative;height:300px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;align-items:end;padding-left:56px;margin-top:24px}
.cols .gl{position:absolute;left:56px;right:0;border-top:1px dashed var(--line);font-size:11px;color:var(--muted)}
.cols .gl span{position:absolute;left:-56px;top:-9px;width:50px;text-align:right}
.col{position:relative;height:var(--h);background:linear-gradient(180deg,var(--blue) 0%,var(--blue-deep) 100%);border-radius:8px 8px 0 0;display:flex;justify-content:center;transition:height 1s ease}
.col b{position:absolute;top:-26px;font-size:15px;font-weight:800;color:var(--ink);white-space:nowrap}
.col.last{background:linear-gradient(180deg,var(--accent) 0%,var(--accent-ink) 100%)}
.col.last b{color:var(--accent-ink)}
.col-l{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding-left:56px;border-top:2px solid var(--ink);padding-top:8px;font-size:14px;font-weight:700;text-align:center}
.col-l span small{display:block;font-weight:500;font-size:12px;color:var(--muted)}
@media (max-width:480px){.col b{font-size:12px;top:-22px}.cols{gap:8px;padding-left:44px}.cols .gl{left:44px}.cols .gl span{left:-46px;width:42px}.col-l{gap:8px;padding-left:44px;font-size:13px}}
.total{background:var(--blue-deep);color:#FFFFFF;border-radius:14px;padding:24px;display:flex;flex-direction:column;gap:18px;justify-content:center}
.total .v{font-size:clamp(48px,6vw,76px);font-weight:800;color:#FFB04D;line-height:1}
.total .v small{font-size:16px;color:#FFFFFF;margin-left:6px;font-weight:600}
.total .sub{font-size:15px;color:#CFE6FA}
.total .vt{border-top:1px solid rgba(255,255,255,.2);padding-top:14px;font-size:14px;color:#E4F0FB}
.total .vt b{font-size:24px;color:#FFFFFF;display:block}
.callout{display:flex;gap:16px;align-items:flex-start;background:var(--accent-soft);border:1.5px solid var(--accent);border-radius:14px;padding:20px;margin-block:24px}
.callout .ico{color:var(--accent-ink);width:34px;height:34px}
.callout p{font-size:17px}
.callout b{color:var(--accent-ink)}
.tcard .val{color:var(--accent-ink)}
.tcard .meta{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);gap:8px;flex-wrap:wrap}
details.more{margin-top:20px;background:var(--card);border:1px solid var(--line);border-radius:14px}
details.more summary{cursor:pointer;padding:16px 20px;font-weight:700;color:var(--blue-ink)}
.tbl-wrap{overflow-x:auto;padding:0 20px 18px}
table{border-collapse:collapse;width:100%;min-width:620px;font-size:14px}
th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}
th:first-child,td:first-child{text-align:left}
th{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
tfoot td{font-weight:800}

/* Section 4 */
.lead-card{border-width:1px;border-top:6px solid var(--c);padding:22px;gap:14px}
.lead-card .pl{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.lead-card h3{font-size:20px;font-weight:800;color:var(--ink)}
.lead-card h3 span{display:block;font-size:13px;font-weight:600;color:var(--blue-ink);letter-spacing:.06em;text-transform:uppercase;margin-bottom:2px}
.kv{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.kv li{display:flex;justify-content:space-between;gap:10px;align-items:baseline;border-bottom:1px dashed var(--line);padding-bottom:8px;font-size:14px}
.kv li b{font-size:20px;font-weight:800;color:var(--accent-ink);white-space:nowrap}
.kv li em{display:block;font-style:normal;font-size:12px;color:var(--muted)}
.contacts{font-size:13px;color:var(--muted);line-height:1.5}
.contacts strong{color:var(--ink);font-weight:700;display:block;margin-bottom:2px}

/* Section 5 tabs */
.tabs{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;margin-bottom:18px;scrollbar-width:thin}
.tab{font-family:var(--f);font-size:14px;font-weight:700;padding:10px 16px;border-radius:999px;border:1.5px solid var(--blue-line);background:var(--card);color:var(--ink);cursor:pointer;white-space:nowrap;display:inline-flex;align-items:center;gap:8px}
.tab .ico{width:18px;height:18px}
.tab[aria-selected="true"]{background:var(--blue);border-color:var(--blue);color:#FFFFFF}
.tab.hot{border-color:var(--accent)}
.panel{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px;display:flex;flex-direction:column;gap:16px}
.panel[hidden]{display:none}
.panel .card h3{font-size:16px;text-transform:none}
.panel>h3{font-size:22px;font-weight:800;color:var(--blue-ink);text-transform:uppercase}
.panel ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:10px;font-size:16px;max-width:860px}
.panel li::marker{color:var(--accent)}
blockquote{margin:0;border-left:5px solid var(--accent);padding:6px 0 6px 18px;font-size:clamp(18px,2.2vw,24px);font-weight:600;line-height:1.45;color:var(--ink);max-width:900px}
.sub4 .card{gap:8px}
.sub4 .lbl{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.sub4 p{font-size:14px}
.sub4 .card h3{color:var(--blue-ink)}
.note{font-size:14px;color:var(--muted)}

/* Section 6 accordion */
.units{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;align-items:start}
@media (max-width:760px){.units{grid-template-columns:1fr}}
.units details{background:var(--card);border:1px solid var(--line);border-radius:12px}
.units summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;padding:14px 16px;font-weight:700;font-size:16px}
.units summary::-webkit-details-marker{display:none}
.units summary .ico{color:var(--blue-ink)}
.units summary::after{content:"+";margin-left:auto;font-size:22px;color:var(--blue-ink);line-height:1}
.units details[open] summary::after{content:"–"}
.units details[open]{border-color:var(--blue)}
.units .body{padding:0 16px 16px 54px;font-size:15px;color:var(--ink)}
.units .body b{color:var(--accent-ink)}

/* Section 7 band */
.band{background:var(--band);color:var(--band-ink);padding-block:56px}
.band h2{font-size:clamp(24px,3.4vw,38px);font-weight:800;text-transform:uppercase;max-width:900px}
.dung{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-block:28px}
@media (max-width:860px){.dung{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:420px){.dung{grid-template-columns:1fr}}
.dung div{border:1px solid rgba(255,255,255,.25);border-radius:14px;padding:18px;display:flex;flex-direction:column;gap:10px;font-weight:700;font-size:17px;line-height:1.35}
.dung .ico{width:34px;height:34px;color:#FFB04D}
.band .sub{color:#D6E7F7;max-width:880px;font-size:16px}

/* Section 8 timeline */
.tl{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;position:relative}
@media (max-width:820px){.tl{grid-template-columns:1fr}}
.tl .card{border-top:4px solid var(--blue)}
.tl .when{display:flex;align-items:center;gap:10px;color:var(--blue-ink);font-weight:800;font-size:15px;text-transform:uppercase;letter-spacing:.04em}
.tl .when span{width:30px;height:30px;border-radius:50%;background:var(--blue);color:#FFFFFF;display:grid;place-items:center;font-size:14px;flex:none}
.tl p{font-size:15px}

/* Section 9 */
.refs{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0;font-size:14px;max-width:900px}
.refs li{display:grid;grid-template-columns:260px minmax(0,1fr);gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}
.refs li b{color:var(--ink)}
.refs li span{color:var(--muted)}
.refs li.key{background:var(--blue-soft);border-radius:8px;padding:10px 12px;border:none;margin-top:6px}
.refs li.key span{color:var(--ink)}
@media (max-width:640px){.refs li{grid-template-columns:1fr;gap:2px}}

/* Footer */
footer{background:var(--blue-deep);color:#E4F0FB;padding-block:40px calc(40px + env(safe-area-inset-bottom,0px))}
footer .wrap{display:flex;flex-direction:column;gap:16px}
footer .brand{color:#FFFFFF}
footer .ph{border-color:#FFB04D;color:#FFB04D;background:transparent}
.contact{font-size:17px;line-height:1.5}
.contact b{color:#FFFFFF}
.contact .tel{font-weight:800;color:#FFB04D;white-space:nowrap;user-select:all}
footer small{font-size:13px;color:#A9C6E2;border-top:1px solid rgba(255,255,255,.15);padding-top:14px}

.totop{position:fixed;right:calc(16px + env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));width:46px;height:46px;border-radius:50%;background:var(--accent);color:#1B1206;border:none;display:grid;place-items:center;cursor:pointer;box-shadow:0 6px 18px rgba(0,0,0,.2);z-index:40;opacity:0;pointer-events:none;transition:opacity .25s}
.totop.show{opacity:1;pointer-events:auto}
.totop .ico{width:22px;height:22px}

.reveal{transition:opacity .6s ease, transform .6s ease}
.reveal.pre{opacity:.001;transform:translateY(14px)}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}.reveal,.reveal.pre{opacity:1;transform:none;transition:none}.bar i,.hb .t i,.col{transition:none}}