/* ===== CXDREAL – brand tokens ===== */
:root{
  --navy:#121a2c;
  --navy-2:#1c2640;
  --gold:#cc9b3c;
  --gold-2:#e2c07a;
  --gold-3:#9c7224;
  --cream:#f6f3ec;
  --cream-gold:#fbf6ec;
  --ink:#141a28;
  --muted:#5f6676;
  --line:#e6e0d3;
  --radius:16px;
  --shadow:0 20px 50px -24px rgba(18,26,44,.35);
  --sans:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font-family:var(--sans);color:var(--ink);background:#fff;line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.22;letter-spacing:-.01em}
p{margin:0 0 1em}
.container{width:min(1200px,100% - 32px);margin-inline:auto}

/* ===== Common ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:10px;font:600 15.5px/1.2 var(--sans);border:1.5px solid transparent;cursor:pointer;transition:transform .2s,background .2s,color .2s,border-color .2s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.btn--dark{background:var(--navy);color:#f3ead6}
.btn--dark:hover{background:var(--navy-2)}
.btn--gold{background:var(--gold);color:#1e1608}
.btn--gold:hover{background:var(--gold-2)}
.btn--line{border-color:var(--navy);color:var(--navy)}
.btn--line:hover{background:var(--navy);color:#fff}
.btn--ghost{border-color:rgba(255,255,255,.45);color:#fff}
.btn--ghost:hover{background:#fff;color:var(--navy)}
.btn--block{width:100%}
.eyebrow{font-size:12.5px;font-weight:600;letter-spacing:2.4px;color:var(--gold-3);margin-bottom:12px}
.gold{color:var(--gold)}
.pill{display:inline-block;white-space:nowrap;flex:none;font-size:11.5px;font-weight:700;letter-spacing:.8px;padding:4px 10px;border-radius:999px}
.pill--gold{background:var(--gold);color:#1e1608}
.pill--light{background:rgba(255,255,255,.92);color:var(--navy)}
.sec{padding:clamp(64px,8vw,104px) 0}
.sec--cream{background:var(--cream)}
.sec--gold{background:var(--cream-gold)}
.sec h2{font-size:clamp(26px,3.2vw,36px);font-weight:700;color:var(--navy);margin-bottom:14px}
.sec__head{max-width:680px;margin-bottom:40px}
.sec__head--row{max-width:none;display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
.sec__sub{color:var(--muted);margin:0}
.sec__sub a{color:var(--gold-3);font-weight:600}

/* ===== Header ===== */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);border-bottom:1px solid transparent;transition:border-color .3s,box-shadow .3s}
.header.is-scrolled{border-color:var(--line);box-shadow:0 8px 30px -22px rgba(0,0,0,.4)}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px}
.brand{display:flex;align-items:center;gap:11px;color:var(--navy)}
.brand__icon{width:40px;height:40px;object-fit:contain}
.brand__text strong{display:block;font-weight:800;letter-spacing:2px;font-size:19px;line-height:1}
.brand__text small{display:block;font-size:9.5px;letter-spacing:2.4px;text-transform:uppercase;color:var(--gold-3);margin-top:5px;font-weight:600}
.nav{display:flex;align-items:center;gap:30px}
.nav a{font-size:15px;font-weight:500;color:var(--ink)}
.nav a:not(.btn):hover{color:var(--gold-3)}
.nav__cta{padding:11px 18px}
.nav a.btn--dark,.nav a.btn--dark:hover{color:#f3ead6}
.burger{display:none;width:44px;height:44px;border:0;background:transparent;cursor:pointer;flex-direction:column;justify-content:center;gap:6px;padding:10px}
.burger span{display:block;height:2px;background:var(--navy);border-radius:2px;transition:.3s}

/* ===== Hero ===== */
.hero{padding:clamp(36px,5vw,64px) 0 clamp(56px,7vw,90px);background:linear-gradient(180deg,#fff 0%,var(--cream) 100%)}
.hero__grid{display:grid;grid-template-columns:1.02fr 1fr;gap:clamp(32px,5vw,64px);align-items:center}
.hero__news{display:inline-flex;align-items:center;gap:12px;padding:7px 14px 7px 7px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:14px;color:var(--ink);margin-bottom:26px;max-width:100%}
.hero__text{min-width:0}
.hero__news span:nth-child(2){overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.hero__news:hover{border-color:var(--gold)}
.hero__news .arrow{color:var(--gold-3);font-weight:700}
.hero h1{font-size:clamp(36px,5.2vw,60px);font-weight:800;color:var(--navy);line-height:1.1;margin-bottom:20px}
.hero__lead{font-size:clamp(16px,1.4vw,18px);color:var(--muted);max-width:560px}
.checks{list-style:none;padding:0;margin:22px 0 30px;display:grid;gap:12px}
.checks li{position:relative;padding-left:32px;font-size:15.5px}
.checks li::before{content:"";position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:50%;background:var(--navy) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23e2c07a' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12l4 4 8-8'/%3E%3C/svg%3E") center/13px no-repeat}
.hero__actions{display:flex;gap:12px;flex-wrap:wrap}
.hero__media{position:relative;padding:0 40px 60px 0}
.hero__main{margin:0;position:relative;border-radius:22px;overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/4.3}
.hero__main img{width:100%;height:100%;object-fit:cover}
.hero__main figcaption{position:absolute;left:0;right:42%;bottom:0;padding:70px 24px 22px;background:linear-gradient(0deg,rgba(12,18,32,.85),transparent);color:#fff;display:grid;gap:4px;justify-items:start}
.hero__main figcaption b{font-size:22px;margin-top:6px}
.hero__main figcaption small{opacity:.85;font-size:13.5px}
.hero__sub{position:absolute;right:0;bottom:0;width:44%;margin:0;border-radius:16px;overflow:hidden;border:6px solid #fff;box-shadow:var(--shadow);aspect-ratio:4/3}
.hero__sub img{width:100%;height:100%;object-fit:cover}
.hero__stat{position:absolute;left:-18px;top:28px;background:#fff;border-radius:14px;padding:14px 18px;box-shadow:var(--shadow);display:flex;gap:12px;align-items:center;max-width:250px}
.hero__stat b{font-size:28px;font-weight:800;color:var(--gold)}
.hero__stat span{font-size:12.5px;color:var(--muted);line-height:1.4}

/* ===== Trust ===== */
.trust{background:var(--cream);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust__inner{display:flex;align-items:center;justify-content:space-between;gap:24px 40px;padding:30px 0;flex-wrap:wrap}
.trust__label{margin:0;font-size:12.5px;letter-spacing:2px;font-weight:600;color:var(--muted)}
.trust__list{list-style:none;margin:0;padding:0;display:flex;gap:16px 44px;flex-wrap:wrap;align-items:center}
.trust__list li{font-size:20px;font-weight:800;letter-spacing:.5px;color:var(--navy);opacity:.72}

/* ===== About ===== */
.about{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,80px);align-items:start}
.about__text p{color:var(--muted)}
.about__text b{color:var(--navy)}
.timeline{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.timeline li{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:#fff}
.timeline b{display:block;font-size:30px;font-weight:800;color:var(--navy);line-height:1.1;margin-bottom:8px}
.timeline li:nth-child(odd) b{color:var(--gold)}
.timeline span{font-size:14.5px;color:var(--muted);line-height:1.55;display:block}

/* ===== Projects ===== */
.filters{display:flex;gap:8px;flex-wrap:wrap}
.filter{font:500 14px var(--sans);padding:9px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;transition:.2s}
.filter:hover{border-color:var(--navy)}
.filter.is-active{background:var(--navy);border-color:var(--navy);color:#fff}
.grid-projects{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pcard{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s}
.pcard:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.pcard.is-hidden{display:none}
.pcard__img{position:relative;aspect-ratio:16/10;overflow:hidden}
.pcard__img img{width:100%;height:100%;object-fit:cover;transition:transform .7s}
.pcard:hover .pcard__img img{transform:scale(1.05)}
.status{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.94);color:var(--navy);font-size:12px;font-weight:700;padding:5px 11px;border-radius:999px}
.status--hot{background:var(--gold);color:#1e1608}
.status--muted{background:var(--navy);color:#fff}
.pcard__body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.pcard h3{font-size:20px;color:var(--navy);margin-bottom:4px}
.pcard__dev{font-size:13.5px;color:var(--gold-3);font-weight:600;margin-bottom:10px}
.pcard__body>p:not(.pcard__dev){font-size:15px;color:var(--muted)}
.chips{list-style:none;padding:0;margin:auto 0 0;display:flex;gap:8px;flex-wrap:wrap}
.chips li{font-size:12.5px;background:var(--cream);color:var(--navy);padding:4px 11px;border-radius:999px}
.empty{text-align:center;color:var(--muted);margin-top:20px}

/* ===== Services ===== */
.grid-services{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.service{padding:30px 26px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:border-color .3s,transform .3s}
.service:hover{border-color:var(--gold);transform:translateY(-4px)}
.service__icon{width:52px;height:52px;border-radius:12px;background:var(--cream);display:grid;place-items:center;margin-bottom:20px}
.service__icon svg{width:24px;height:24px;fill:none;stroke:var(--gold-3);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.service h3{font-size:18px;color:var(--navy);margin-bottom:10px}
.service p{color:var(--muted);font-size:15px;margin:0}

/* ===== Why ===== */
.why{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,80px);align-items:start}
.why__intro>p{color:var(--muted)}
.why__img{border-radius:var(--radius);margin-top:26px;aspect-ratio:16/10;object-fit:cover;width:100%}
.why__list{list-style:none;margin:0;padding:0;display:grid;gap:0}
.why__list li{display:flex;gap:22px;padding:26px 0;border-bottom:1px solid var(--line)}
.why__list li:first-child{padding-top:0}
.why__list span{font-size:34px;font-weight:800;color:var(--gold);line-height:1;min-width:52px}
.why__list h3{font-size:19px;color:var(--navy);margin-bottom:6px}
.why__list p{color:var(--muted);margin:0;font-size:15px}

/* ===== Team ===== */
.team{display:grid;gap:28px}
.team__lead{display:grid;grid-template-columns:360px 1fr;gap:clamp(28px,5vw,64px);align-items:end;background:var(--cream);border-radius:22px;padding:40px 48px 0;overflow:hidden}
.team__photo{align-self:end}
.team__photo img{width:100%;max-width:340px;margin:0 auto}
.team__info{padding-bottom:44px}
.team__info h2{font-size:clamp(28px,3vw,38px);color:var(--navy);margin-bottom:4px;font-weight:800}
.team__role{color:var(--gold-3);font-weight:600;margin-bottom:20px}
.team__info blockquote{margin:0 0 26px;font-size:clamp(17px,1.6vw,20px);line-height:1.6;color:var(--ink);border-left:3px solid var(--gold);padding-left:20px;font-style:italic}

/* ===== Band ===== */
.band{background:var(--navy);color:#fff;padding:clamp(48px,6vw,72px) 0;position:relative;overflow:hidden}
.band::after{content:"";position:absolute;right:-90px;top:-140px;width:360px;height:360px;border-radius:50%;border:1px solid rgba(226,192,122,.22);box-shadow:0 0 0 46px rgba(226,192,122,.04)}
.band__inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;position:relative;z-index:1}
.band h2{font-size:clamp(24px,3vw,32px);margin-bottom:10px}
.band p{opacity:.78;margin:0;max-width:620px}
.band__actions{display:flex;gap:12px;flex-wrap:wrap}

/* ===== Partner ===== */
.partner{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(32px,6vw,80px);align-items:center}
.partner__text>p{color:var(--muted)}
.partner__text .btn{margin-top:8px}
.tiers{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.tiers li{border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.tiers li:last-child{background:var(--navy);border-color:var(--navy);color:#fff}
.tiers b{display:block;font-size:34px;font-weight:800;color:var(--gold);line-height:1.1;white-space:nowrap}
.tiers span{font-size:14px;color:var(--muted);display:block;margin-top:6px;line-height:1.45}
.tiers li:last-child span{color:rgba(255,255,255,.75)}

/* ===== FAQ ===== */
.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(32px,6vw,80px);align-items:start}
.faq__list{display:grid;gap:12px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 22px;transition:border-color .2s}
.faq details[open]{border-color:var(--gold)}
.faq summary{list-style:none;cursor:pointer;padding:20px 32px 20px 0;font-weight:600;color:var(--navy);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:24px;font-weight:400;color:var(--gold-3);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details p{color:var(--muted);margin:0 0 20px;font-size:15px}

/* ===== Contact ===== */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,80px);align-items:start}
.contact__info>p{color:var(--muted)}
.contact__list{margin:26px 0 0;display:grid;gap:18px}
.contact__list div{border-left:3px solid var(--gold);padding-left:16px}
.contact__list dt{font-size:13px;color:var(--muted)}
.contact__list dd{margin:2px 0 0;font-weight:600;color:var(--navy)}
.contact__list dd a{font-size:19px}
.form{background:#fff;border:1px solid var(--line);border-radius:18px;padding:clamp(24px,4vw,36px);box-shadow:var(--shadow);display:grid;gap:16px}
.form label{display:grid;gap:6px;font-size:14px;font-weight:600;color:var(--navy)}
.form input,.form select,.form textarea{font:400 15px var(--sans);padding:13px 15px;border:1px solid var(--line);border-radius:10px;background:#fcfbf8;color:var(--ink);width:100%;transition:border-color .2s,box-shadow .2s}
.form textarea{resize:vertical}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(204,155,60,.18)}
.form .is-invalid{border-color:#c0392b}
.form__note{font-size:13px;color:var(--muted);margin:0;text-align:center}
.form__msg{margin:0;font-size:14px;text-align:center}
.form__msg:empty{display:none}
.form__msg.ok{color:#1e7b4a}
.form__msg.err{color:#c0392b}
.map{margin-top:56px;border-radius:18px;overflow:hidden;border:1px solid var(--line);height:410px;display:flex;flex-direction:column;padding:0;background:#fff}
.map iframe{width:100%;flex:1;min-height:0;border:0}
.map__link{display:block;padding:14px 20px;font-weight:600;color:var(--navy);border-top:1px solid var(--line)}
.map__link:hover{color:var(--gold-3)}

/* ===== Footer ===== */
.footer{background:#0d1322;color:rgba(255,255,255,.7);padding:64px 0 0;font-size:14.5px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer__logo{width:170px;margin-bottom:18px}
.footer__muted{font-size:13px;opacity:.7}
.footer h4{color:#fff;font-size:13px;letter-spacing:2px;margin-bottom:16px}
.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.footer a:hover{color:var(--gold-2)}
.footer__bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:48px;padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;opacity:.7}

/* ===== Floating ===== */
.float{position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:12px}
.float__btn{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:700;font-size:14px;box-shadow:0 10px 24px -8px rgba(0,0,0,.45);transition:transform .2s}
.float__btn:hover{transform:scale(1.08)}
.float__btn--zalo{background:#0068ff}
.float__btn--call{background:var(--gold);animation:ring 2.4s infinite}
.float__btn--call svg{width:23px;height:23px;fill:none;stroke:#1e1608;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
@keyframes ring{0%{box-shadow:0 0 0 0 rgba(204,155,60,.6)}70%{box-shadow:0 0 0 16px rgba(204,155,60,0)}100%{box-shadow:0 0 0 0 rgba(204,155,60,0)}}

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

/* ===== Responsive ===== */
@media (max-width:1080px){
  .grid-services{grid-template-columns:repeat(2,1fr)}
  .grid-projects{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr}
  .nav{gap:20px}
}
@media (max-width:960px){
  .burger{display:flex}
  .nav{position:fixed;top:76px;left:0;right:0;bottom:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 24px 30px;gap:0;transform:translateX(100%);transition:transform .3s ease;overflow-y:auto}
  .nav a:not(.btn){padding:16px 0;border-bottom:1px solid var(--line);font-size:17px}
  .nav__cta{margin-top:22px}
  .nav.is-open{transform:none}
  .header.nav-open .burger span:nth-child(1){transform:translateY(8px) rotate(45deg)}
  .header.nav-open .burger span:nth-child(2){opacity:0}
  .header.nav-open .burger span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
  .hero__grid,.about,.why,.partner,.faq,.contact{grid-template-columns:1fr}
  .hero__media{max-width:620px}
  .hero__stat{left:0}
  .team__lead{grid-template-columns:1fr;padding:32px 28px 0;text-align:left}
  .team__photo{order:2}
  .team__photo img{max-width:280px}
  .team__info{padding-bottom:0}
}
@media (max-width:640px){
  .grid-projects,.grid-services{grid-template-columns:1fr}
  .timeline,.tiers{grid-template-columns:1fr 1fr;gap:10px}
  .timeline li,.tiers li{padding:16px}
  .timeline b{font-size:22px}
  .tiers b{font-size:26px}
  .hero__media{padding:0 18px 46px 0}
  .hero__main figcaption{right:0;padding-bottom:64px}
  .hero__stat{left:-4px;top:14px;padding:10px 12px;max-width:190px}
  .hero__stat b{font-size:22px}
  .hero__stat span{font-size:11px}
  .hero__news{font-size:13px;border-radius:14px;align-items:flex-start}
  .hero__news span:nth-child(2){white-space:normal}
  .btn{white-space:normal;text-align:center}
  .hero__actions .btn{flex:1 1 100%}
  .why__list li{gap:16px}
  .why__list span{font-size:28px;min-width:40px}
  .band__actions .btn{flex:1}
  .footer__grid{grid-template-columns:1fr}
  .map{height:340px}
  .brand__text small{display:none}
}