:root{--navy:#0B2D5B;--navy2:#123A70;--orange:#F7931E;--sky:#26A7DE;--sand:#F8F6EF;--ink:#16233A;--muted:#5B6678;--line:#E3DFD3;--white:#fff;--serif:'Lora',Georgia,serif;--sans:'Be Vietnam Pro',system-ui,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--white);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
.narrow{max-width:780px}
.hidden{display:none!important}
h1,h2,h3{font-family:var(--serif);color:var(--navy);margin:0;line-height:1.2}
h2{font-size:clamp(28px,3.6vw,40px);margin-bottom:18px}
h3{font-size:19px}
.light{color:#fff}
.kicker{font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--orange);font-weight:700;margin:0 0 10px}
.kicker.light{color:var(--orange)}
.sub-h{color:var(--muted);max-width:720px;margin:0 0 32px}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand img{width:40px;height:40px;border-radius:50%}
.brand span{display:flex;flex-direction:column;line-height:1.15}
.brand b{font-family:var(--serif);color:var(--navy);font-size:18px}
.brand small{font-size:11.5px;color:var(--muted);letter-spacing:.05em}
.links{display:flex;gap:22px;margin-left:auto}
.links a{text-decoration:none;font-size:14.5px;color:var(--ink);font-weight:500}
.links a:hover{color:var(--orange)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:11px 22px;font:600 15px var(--sans);cursor:pointer;text-decoration:none;transition:transform .15s,box-shadow .15s,background .15s}
.btn:hover{transform:translateY(-1px)}
.btn-orange{background:var(--orange);color:#fff;box-shadow:0 6px 18px rgba(247,147,30,.32)}
.btn-orange:hover{background:#E8840F}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.btn-ghost:hover{border-color:#fff}
.btn-lg{padding:15px 30px;font-size:16px}
.btn-block{width:100%}
.btn[disabled]{opacity:.6;cursor:wait;transform:none}

/* hero */
.hero{background:radial-gradient(1200px 500px at 85% -10%,rgba(38,167,222,.28),transparent 60%),linear-gradient(160deg,var(--navy) 0%,#0A2549 100%);color:#fff;padding:88px 0 96px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:6px;background:linear-gradient(90deg,var(--orange),var(--sky))}
.hero-in{display:grid;grid-template-columns:1.35fr .9fr;gap:56px;align-items:center}
.eyebrow{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--orange);font-weight:600;margin:0 0 18px}
.hero h1{color:#fff;font-size:clamp(44px,6.4vw,76px);letter-spacing:-.01em;margin-bottom:22px}
.lead{font-size:18px;color:rgba(255,255,255,.86);max-width:600px;margin:0 0 26px}
.chips{list-style:none;padding:0;margin:0 0 32px;display:flex;flex-wrap:wrap;gap:10px}
.chips li{border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:6px 14px;font-size:13.5px;color:rgba(255,255,255,.92)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:22px;padding:30px;backdrop-filter:blur(6px)}
.hc-top{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--sky);font-weight:600}
.hc-big{font-family:var(--serif);font-size:64px;color:#fff;line-height:1;margin:14px 0 6px}
.hc-sub{color:rgba(255,255,255,.8);font-size:15px;margin-bottom:24px}
.hc-q{border-top:1px solid rgba(255,255,255,.16);padding-top:20px;display:flex;flex-direction:column;gap:4px}
.hc-q span{font-size:12.5px;color:rgba(255,255,255,.6);text-transform:uppercase;letter-spacing:.1em}
.hc-q b{font-family:var(--serif);font-size:26px;color:var(--orange);font-weight:600}
.hc-q small{color:rgba(255,255,255,.75);font-size:14px}

/* sections */
.sec{padding:88px 0}
.sec-navy{background:var(--navy);color:rgba(255,255,255,.88)}
.sec-sand{background:var(--sand)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:34px 0 22px}
.stat{border:1px solid var(--line);border-radius:18px;padding:24px;background:#fff}
.stat b{display:block;font-family:var(--serif);font-size:38px;color:var(--navy);line-height:1.1;margin-bottom:8px}
.stat span{font-size:14.5px;color:var(--muted)}
.stat:nth-child(odd) b{color:var(--orange)}
.note{font-size:13.5px;color:var(--muted);max-width:860px;margin:0}

.mission{display:grid;grid-template-columns:1.4fr 1fr;gap:56px;margin-bottom:48px}
.big-quote{font-family:var(--serif);font-size:clamp(22px,2.4vw,28px);color:#fff;line-height:1.45;margin:0}
.mid{font-size:17px;color:rgba(255,255,255,.82);margin:0}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pillar{border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:26px;background:rgba(255,255,255,.04)}
.pillar .pn{font-family:var(--serif);color:var(--orange);font-size:15px;font-weight:700}
.pillar h3{color:#fff;margin:8px 0 8px}
.pillar p{margin:0;font-size:15px;color:rgba(255,255,255,.76)}
.neutral{margin:28px 0 0;font-size:15px;color:var(--sky)}

/* roles */
.roles{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.role{border:1px solid var(--line);border-radius:20px;padding:28px;display:flex;flex-direction:column;background:#fff;transition:box-shadow .2s,border-color .2s;position:relative}
.role:hover{box-shadow:0 18px 40px rgba(11,45,91,.1);border-color:#cfd7e4}
.role .rn{font-family:var(--serif);font-size:14px;color:var(--sky);font-weight:700;margin-bottom:6px}
.role h3{font-size:22px;margin-bottom:6px}
.role .who{font-size:14px;color:var(--muted);margin:0 0 16px}
.role dl{margin:0 0 20px;font-size:14.5px}
.role dt{font-weight:700;color:var(--navy);font-size:12.5px;text-transform:uppercase;letter-spacing:.08em;margin-top:12px}
.role dd{margin:4px 0 0;color:var(--ink)}
.role .pick{margin-top:auto;align-self:flex-start;background:var(--sand);color:var(--navy);border:1px solid var(--line);border-radius:999px;padding:9px 18px;font:600 14px var(--sans);cursor:pointer}
.role .pick:hover,.role.on .pick{background:var(--navy);color:#fff;border-color:var(--navy)}
.role.on{border-color:var(--orange);box-shadow:0 0 0 2px rgba(247,147,30,.25)}
.role.feature{background:linear-gradient(160deg,#fff 0%,#FFF6EA 100%)}

/* timeline */
.timeline{list-style:none;padding:0;margin:36px 0 48px;display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.timeline::before{content:"";position:absolute;top:21px;left:10%;right:10%;height:2px;background:linear-gradient(90deg,var(--sky),var(--orange))}
.timeline li{text-align:center;padding:0 12px;position:relative}
.tl-n{display:inline-flex;width:44px;height:44px;border-radius:50%;background:var(--navy);color:#fff;font-family:var(--serif);font-weight:700;align-items:center;justify-content:center;font-size:18px;position:relative;z-index:1;border:4px solid var(--sand)}
.timeline li.last .tl-n{background:var(--orange)}
.timeline b{display:block;font-family:var(--serif);color:var(--navy);font-size:18px;margin-top:12px}
.timeline em{display:block;font-style:normal;color:var(--orange);font-size:13px;font-weight:600;margin:2px 0 6px}
.timeline p{margin:0;font-size:14px;color:var(--muted)}
.gets{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.gets div{background:#fff;border-radius:18px;padding:22px;border:1px solid var(--line)}
.gets h3{font-size:17px;margin-bottom:6px}
.gets p{margin:0;font-size:14.5px;color:var(--muted)}
.promise{text-align:center;font-family:var(--serif);font-size:22px;color:var(--navy);margin:40px 0 0}

/* rules */
.two{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.rules{padding-left:22px;margin:0}
.rules li{margin-bottom:14px;font-size:16px}
.rules b{color:var(--navy)}
.nots{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.nots li{padding:10px 14px 10px 40px;border-radius:12px;background:var(--sand);position:relative;font-size:15px}
.nots li::before{content:"";position:absolute;left:16px;top:50%;width:12px;height:2px;background:#C0392B;transform:translateY(-50%) rotate(45deg)}
.nots li::after{content:"";position:absolute;left:16px;top:50%;width:12px;height:2px;background:#C0392B;transform:translateY(-50%) rotate(-45deg)}

/* form */
.form-wrap{display:grid;grid-template-columns:.85fr 1.25fr;gap:56px;align-items:start}
.form-intro{position:sticky;top:100px}
.form-intro p{color:rgba(255,255,255,.82)}
.next{counter-reset:n;list-style:none;padding:0;margin:26px 0 0}
.next li{counter-increment:n;padding:10px 0 10px 46px;position:relative;color:#fff;border-bottom:1px solid rgba(255,255,255,.1)}
.next li::before{content:counter(n);position:absolute;left:0;top:8px;width:30px;height:30px;border-radius:50%;background:rgba(247,147,30,.18);color:var(--orange);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:14px}
.form{background:#fff;color:var(--ink);border-radius:24px;padding:36px;box-shadow:0 30px 60px rgba(0,0,0,.25)}
fieldset{border:0;padding:0;margin:0 0 30px}
legend{font-family:var(--serif);font-size:20px;color:var(--navy);font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:10px}
legend span{display:inline-flex;width:28px;height:28px;border-radius:50%;background:var(--navy);color:#fff;font-size:14px;align-items:center;justify-content:center;font-family:var(--sans)}
label{display:block;font-weight:600;font-size:14.5px;margin-bottom:14px;color:var(--ink)}
label small{font-weight:400;color:var(--muted)}
i{color:#C0392B;font-style:normal}
input[type=text],input[type=email],input[type=url],input:not([type]),textarea,select{display:block;width:100%;margin-top:6px;border:1.5px solid var(--line);border-radius:12px;padding:11px 14px;font:400 15px var(--sans);color:var(--ink);background:#FCFBF8;transition:border-color .15s,box-shadow .15s}
textarea{resize:vertical}
input:focus,textarea:focus,select:focus{outline:0;border-color:var(--sky);box-shadow:0 0 0 3px rgba(38,167,222,.18);background:#fff}
.bad{border-color:#C0392B!important}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:500;line-height:1.5}
.check input{width:18px;height:18px;margin-top:2px;accent-color:var(--orange);flex:none}
.hint{font-size:13.5px;color:var(--muted);margin:-6px 0 14px}
.field-label{font-weight:600;font-size:14.5px;margin-bottom:8px}
.role-picks{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:6px}
.rp{display:flex;align-items:center;gap:10px;border:1.5px solid var(--line);border-radius:14px;padding:12px 14px;cursor:pointer;font-weight:600;font-size:14.5px;margin:0;background:#FCFBF8}
.rp input{accent-color:var(--orange);width:18px;height:18px;margin:0}
.rp.on{border-color:var(--orange);background:#FFF6EA}
.rq{border-left:3px solid var(--orange);background:var(--sand);border-radius:0 14px 14px 0;padding:18px 18px 4px;margin-top:16px}
.rq h4{margin:0 0 12px;font-family:var(--serif);color:var(--navy);font-size:17px}
.seg{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.seg label{margin:0;border:1.5px solid var(--line);border-radius:999px;padding:8px 16px;font-weight:500;font-size:14px;cursor:pointer;background:#FCFBF8}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg label.on{background:var(--navy);border-color:var(--navy);color:#fff}
.seg.bad-group label{border-color:#E7A39B}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.form-err{color:#C0392B;font-weight:600;font-size:14.5px;min-height:0;margin-bottom:12px}
.form-err:empty{display:none}
.fine{font-size:13px;color:var(--muted);text-align:center;margin:14px 0 0}
.fine a{color:var(--navy);font-weight:600}
.done{background:#fff;color:var(--ink);border-radius:24px;padding:48px 36px;text-align:center;box-shadow:0 30px 60px rgba(0,0,0,.25)}
.done img{width:84px;height:84px;border-radius:50%;margin:0 auto 18px}
.done h2{color:var(--navy)}
.done p{color:var(--muted)}

/* faq */
details{border-bottom:1px solid var(--line);padding:18px 0}
summary{cursor:pointer;font-weight:600;font-size:17px;color:var(--navy);list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--orange);font-size:22px;line-height:1}
details[open] summary::after{content:"\2212"}
details p{margin:12px 0 0;color:var(--muted)}

/* footer */
.foot{background:#07203F;color:rgba(255,255,255,.7);padding:36px 0;font-size:14px}
.foot-in{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.foot .brand b{color:#fff}
.foot .brand small{color:rgba(255,255,255,.6)}
.foot p{margin:0;text-align:right}

@media (max-width:960px){
  .links{display:none}
  .nav-in .btn{margin-left:auto}
  .hero-in,.mission,.two,.form-wrap{grid-template-columns:1fr}
  .form-intro{position:static}
  .stats,.gets{grid-template-columns:1fr 1fr}
  .roles,.pillars{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr;gap:18px}
  .timeline::before{display:none}
  .timeline li{text-align:left;padding-left:60px}
  .tl-n{position:absolute;left:0;top:0}
  .timeline b{margin-top:0}
}
@media (max-width:600px){
  .sec{padding:64px 0}
  .hero{padding:60px 0 70px}
  .stats,.gets,.row2,.role-picks{grid-template-columns:1fr}
  .form{padding:24px 18px}
  .nav-in .btn{padding:9px 14px;font-size:13.5px}
  .brand small{display:none}
  .foot p{text-align:left}
}

/* 9 ghế */
.dl{list-style:none;padding:0;margin:14px 0 22px;display:grid;gap:8px}
.dl li{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:rgba(255,255,255,.85);border-bottom:1px dashed rgba(255,255,255,.14);padding-bottom:7px}
.dl li b{font-family:var(--sans);font-weight:700;color:var(--orange);white-space:nowrap;font-size:14px}
.dl li.soon b{color:#fff;background:var(--orange);border-radius:6px;padding:0 7px}
.seats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}
.seat{border:1px solid var(--line);border-radius:20px;padding:24px;background:#fff;display:flex;flex-direction:column;transition:box-shadow .2s,border-color .2s}
.seat:hover{box-shadow:0 18px 40px rgba(11,45,91,.1);border-color:#cfd7e4}
.seat.on{border-color:var(--orange);box-shadow:0 0 0 2px rgba(247,147,30,.25)}
.seat-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.seat .rn{font-family:var(--serif);font-size:14px;color:var(--sky);font-weight:700}
.tag{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--navy);background:var(--sand);border-radius:999px;padding:3px 10px}
.seat h3{font-size:21px;margin-bottom:4px}
.seat .motto{font-family:var(--serif);font-style:italic;color:var(--orange);margin:0 0 10px;font-size:15.5px}
.seat .desc{font-size:14.5px;color:var(--muted);margin:0 0 14px}
.facts{list-style:none;padding:0;margin:0 0 16px;display:grid;gap:4px;font-size:13.5px}
.facts li{display:flex;gap:8px}
.facts span{color:var(--muted);min-width:78px}
.facts b{color:var(--navy);font-weight:600}
.seat details{border:0;padding:0;margin:0 0 16px}
.seat summary{font-size:14px;color:var(--sky);font-weight:600}
.seat summary::after{font-size:18px}
.seat details h4{margin:14px 0 6px;font-size:12.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--navy)}
.seat details ul{margin:0;padding-left:18px;font-size:14px;color:var(--ink)}
.seat details li{margin-bottom:4px}
.seat details .bad-list li{color:#8A3A30}
.seat .pick{margin-top:auto;align-self:flex-start;background:var(--sand);color:var(--navy);border:1px solid var(--line);border-radius:999px;padding:9px 18px;font:600 14px var(--sans);cursor:pointer}
.seat .pick:hover,.seat.on .pick{background:var(--navy);color:#fff;border-color:var(--navy)}
.timeline.t4{grid-template-columns:repeat(4,1fr)}
.timeline.t4::before{left:12%;right:12%}
.rq .sub{font-size:12.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700;margin:16px 0 10px}
.rq small{font-weight:400;color:var(--muted)}
.seg small{font-weight:400}
@media (max-width:960px){.seats{grid-template-columns:1fr 1fr}.timeline.t4{grid-template-columns:1fr}}
@media (max-width:600px){.seats{grid-template-columns:1fr}}

/* popup cảm ơn */
.no-scroll{overflow:hidden}
.modal{position:fixed;inset:0;z-index:100;background:rgba(7,32,63,.72);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:20px;animation:fadeIn .25s ease}
.modal-card{position:relative;background:#fff;border-radius:24px;max-width:500px;width:100%;padding:40px 32px 32px;text-align:center;box-shadow:0 30px 80px rgba(0,0,0,.35);border-top:6px solid var(--orange);animation:popIn .3s ease}
.modal-card img{width:76px;height:76px;border-radius:50%;margin:0 auto 14px}
.modal-card h2{font-size:26px;margin-bottom:10px}
.modal-card p{color:var(--muted);margin:0 0 12px}
.modal-seats{color:var(--navy)!important;font-weight:600}
.modal-motto{font-family:var(--serif);font-style:italic;color:var(--orange)!important;font-size:17px;margin:16px 0 20px!important}
.modal-x{position:absolute;top:12px;right:16px;border:0;background:none;font-size:28px;line-height:1;color:var(--muted);cursor:pointer}
.modal-x:hover{color:var(--navy)}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes popIn{from{opacity:0;transform:translateY(16px) scale(.97)}to{opacity:1;transform:none}}