:root{
  --paper:#f6f1e7; --ink:#1b1a17; --muted:#6b655a; --line:#dcd3c2;
  --accent:#e2492f; --accent2:#2f5d50; --gold:#d9a441;
  --serif:"Fraunces",Georgia,serif; --sans:"Be Vietnam Pro",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font:400 17px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.35;z-index:0;
  background-image:radial-gradient(rgba(27,26,23,.07) 1px,transparent 1px);background-size:4px 4px}
main,header,footer{position:relative;z-index:1}
a{color:inherit}
b{font-weight:600}

.bar{position:sticky;top:0;display:flex;align-items:center;gap:28px;padding:14px clamp(20px,5vw,64px);
  background:rgba(246,241,231,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:5}
.mark{font:600 20px/1.25 var(--serif);text-decoration:none;letter-spacing:.04em}
.bar nav{display:flex;gap:22px;margin-left:auto;font-size:15px}
.bar nav a{text-decoration:none;color:var(--muted)}
.bar nav a:hover{color:var(--ink)}

.btn{display:inline-flex;align-items:center;gap:8px;border:1.5px solid var(--ink);background:var(--ink);color:var(--paper);
  font:600 15px/1.25 var(--sans);padding:12px 20px;border-radius:999px;text-decoration:none;cursor:pointer;transition:transform .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.light{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.btn.ghost.light{background:transparent;color:var(--paper)}

main{max-width:1120px;margin:0 auto;padding:0 clamp(20px,5vw,64px)}
.hero{padding:clamp(56px,10vw,120px) 0 48px}
.status{display:inline-flex;align-items:center;gap:10px;font-size:14px;color:var(--accent2);background:#e4ebe2;padding:7px 14px;border-radius:999px}
.dot{width:8px;height:8px;border-radius:50%;background:#2f9e6b;box-shadow:0 0 0 0 rgba(47,158,107,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(47,158,107,0)}100%{box-shadow:0 0 0 0 rgba(47,158,107,0)}}
h1{font:400 clamp(56px,11vw,148px)/1.25 var(--serif);letter-spacing:-.025em;margin:22px 0 4px}
.role{font:600 clamp(20px,2.6vw,30px)/1.3 var(--sans)}
.role em{font:italic 400 1em/1.3 var(--serif);color:var(--accent)}
.lead{max-width:620px;margin-top:20px;font-size:clamp(17px,1.6vw,20px);color:var(--muted)}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1.5px solid var(--ink);border-bottom:1px solid var(--line)}
.stats div{padding:28px 20px 28px 0}
.stats div+div{padding-left:20px;border-left:1px solid var(--line)}
.stats b{display:block;font:400 clamp(40px,5vw,64px)/1.25 var(--serif);color:var(--accent)}
.stats span{display:block;font-size:14px;line-height:1.4;color:var(--muted);margin-top:6px}

.block{padding:88px 0 0}
h2{display:flex;align-items:baseline;gap:14px;font:400 clamp(32px,4vw,48px)/1.25 var(--serif);margin-bottom:36px}
h2 span{font:600 13px/1.25 var(--sans);letter-spacing:.12em;color:var(--accent)}

.timeline{list-style:none}
.timeline>li{display:grid;grid-template-columns:200px 1fr;gap:32px;padding:30px 0;border-top:1px solid var(--line)}
.when{font:500 14px/1.4 var(--sans);color:var(--muted);letter-spacing:.02em;padding-top:6px}
h3{font:600 21px/1.35 var(--sans)}
.where{color:var(--muted);font-size:15px;margin:2px 0 12px}
.timeline ul{padding-left:18px}
.timeline ul li{margin:6px 0}
.timeline ul li::marker{color:var(--accent)}

.projects{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fffdf8;border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:transform .3s,box-shadow .3s}
.card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(27,26,23,.12)}
.card h3,.card p{padding:0 22px}
.card h3{margin-top:18px}
.card p{color:var(--muted);font-size:15px;margin:8px 0 22px}
.cover{position:relative;height:190px;display:flex;align-items:flex-end;padding:18px 22px;color:#fff;overflow:hidden}
.cover::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(115deg,rgba(255,255,255,.08) 0 2px,transparent 2px 14px)}
.c1 .cover{background:linear-gradient(140deg,#e2492f,#b8321d)}
.c2 .cover{background:linear-gradient(140deg,#2f5d50,#1d3b33)}
.c3 .cover{background:linear-gradient(140deg,#d9a441,#b07a1c)}
.big{position:relative;z-index:1;font:400 72px/1.25 var(--serif)}
.tag{position:absolute;top:16px;right:16px;z-index:1;font:600 12px/1.25 var(--sans);letter-spacing:.08em;text-transform:uppercase;
  background:rgba(255,255,255,.2);padding:6px 10px;border-radius:999px}

.two{display:grid;grid-template-columns:1.3fr 1fr;gap:56px}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px}
.chips li{border:1px solid var(--ink);border-radius:999px;padding:9px 16px;font-size:15px;line-height:1.25}
.facts dt{font-weight:600;margin-top:12px}
.facts dd{color:var(--muted)}

.contact{margin:96px 0 40px;padding:clamp(40px,7vw,80px);background:var(--ink);color:var(--paper);border-radius:28px}
.contact h2{display:block;max-width:760px;margin-bottom:14px}
.contact p{color:#bdb5a6}

footer{text-align:center;color:var(--muted);font-size:13px;padding:0 20px 40px}
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);opacity:0;background:var(--ink);color:var(--paper);
  padding:12px 20px;border-radius:999px;font-size:15px;transition:.3s;z-index:9}
.toast.show{opacity:1;transform:translate(-50%,0)}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.dot{animation:none}html{scroll-behavior:auto}}

@media (max-width:860px){
  .bar nav{display:none}
  .bar .btn{margin-left:auto}
  .stats{grid-template-columns:1fr 1fr}
  .stats div:nth-child(3){padding-left:0;border-left:0}
  .stats div:nth-child(n+3){border-top:1px solid var(--line)}
  .timeline>li{grid-template-columns:1fr;gap:6px}
  .projects{grid-template-columns:1fr}
  .two{grid-template-columns:1fr;gap:20px}
}

/* Bản PDF: một trang A4, gọn, không hiệu ứng */
@page{size:A4;margin:12mm 14mm}
@media print{
  body{background:#fff;font-size:10.5pt;line-height:1.35}
  body::before,.bar,.cta,.toast,footer,.card .cover::after{display:none}
  main{max-width:none;padding:0}
  .reveal{opacity:1!important;transform:none!important}
  .hero{padding:0 0 8pt}
  .status{padding:0;background:none;font-size:9pt}
  .dot{display:none}
  h1{font-size:30pt;margin:4pt 0 0}
  .role{font-size:13pt}
  .lead{font-size:10pt;margin-top:4pt;max-width:none}
  .stats{border-top:1pt solid #000}
  .stats div{padding:6pt 8pt 6pt 0}
  .stats div+div{padding-left:8pt}
  .stats b{font-size:18pt}
  .stats span{font-size:8pt;margin-top:0}
  .block{padding-top:12pt}
  h2{font-size:15pt;margin-bottom:6pt}
  .timeline>li{grid-template-columns:90pt 1fr;gap:10pt;padding:6pt 0}
  .when{font-size:8.5pt;padding-top:1pt}
  h3{font-size:11pt}
  .where{font-size:9pt;margin:0 0 3pt}
  .timeline ul li{margin:1pt 0}
  .projects{grid-template-columns:repeat(3,1fr);gap:8pt}
  .card{border-radius:6pt;break-inside:avoid}
  .cover{height:auto;padding:6pt 8pt;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .big{font-size:16pt}
  .tag{display:none}
  .card h3,.card p{padding:0 8pt}
  .card h3{margin-top:4pt}
  .card p{font-size:8.5pt;margin:2pt 0 6pt}
  .two{grid-template-columns:1.3fr 1fr;gap:16pt}
  .chips{gap:4pt}
  .chips li{padding:2pt 7pt;font-size:8.5pt}
  .facts dt{margin-top:3pt}
  .contact{margin:12pt 0 0;padding:0;background:none;color:#000;border-radius:0}
  .contact h2{font-size:12pt;margin-bottom:2pt}
  .contact p{color:#000;font-size:9.5pt}
  .contact p::after{content:" Email: minhthu.demo@example.com"}
}