/* =========================================================
   Hậu Thịnh Phát — hauthinhphat.com
   Theme: dark stage / neon LED
   ========================================================= */

:root{
  --bg:#06060b;
  --bg-2:#0a0a14;
  --bg-3:#0d0d1a;
  --surface:rgba(255,255,255,.038);
  --surface-2:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.16);

  --text:#eceffb;
  --muted:#9aa1bd;
  --muted-2:#767d99;

  --cyan:#22d3ee;
  --violet:#a855f7;
  --pink:#ff3d8b;
  --amber:#ffc857;

  --grad:linear-gradient(100deg,#22d3ee 0%,#a855f7 55%,#ff3d8b 100%);
  --grad-2:linear-gradient(100deg,#ffc857 0%,#ff3d8b 50%,#a855f7 100%);

  --r-s:10px;
  --r-m:16px;
  --r-l:22px;
  --r-xl:28px;

  --wrap:1200px;
  --pad:clamp(18px,4vw,28px);
  --sec-y:clamp(64px,9vw,116px);

  --shadow:0 24px 60px -24px rgba(0,0,0,.85);
  --ease:cubic-bezier(.22,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}

h1,h2,h3,h4{line-height:1.18;margin:0;font-weight:800;letter-spacing:-.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}

::selection{background:rgba(168,85,247,.45);color:#fff}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--cyan);color:#04121a;padding:12px 18px;font-weight:700;border-radius:0 0 10px 0;
}
.skip-link:focus{left:0}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad)}
.wrap--narrow{max-width:860px}

.ic{width:1em;height:1em;fill:currentColor;flex:none}

/* ---------- gradient text ---------- */
.grad{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;
}
.grad--2{background:var(--grad-2);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- eyebrow ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);
  padding:7px 15px 7px 12px;border:1px solid var(--line);border-radius:999px;
  background:var(--surface);margin-bottom:20px;
}
.eyebrow .dot{
  width:7px;height:7px;border-radius:50%;background:var(--cyan);flex:none;
  box-shadow:0 0 0 4px rgba(34,211,238,.15),0 0 14px rgba(34,211,238,.9);
  animation:pulse 2.4s var(--ease) infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:999px;border:1px solid transparent;
  font-weight:700;font-size:15.5px;cursor:pointer;white-space:nowrap;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
}
.btn .ic{font-size:18px}
.btn--primary{
  background:var(--grad);color:#0a0410;
  box-shadow:0 12px 34px -10px rgba(168,85,247,.75),0 0 0 1px rgba(255,255,255,.12) inset;
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 18px 44px -10px rgba(168,85,247,.95)}
.btn--ghost{
  background:var(--surface);color:var(--text);border-color:var(--line-2);
  backdrop-filter:blur(8px);
}
.btn--ghost:hover{background:var(--surface-2);border-color:var(--cyan);transform:translateY(-2px)}
.btn--block{width:100%}

/* =========================================================
   TOPBAR
   ========================================================= */
.topbar{
  background:linear-gradient(90deg,rgba(34,211,238,.12),rgba(168,85,247,.12),rgba(255,61,139,.12));
  border-bottom:1px solid var(--line);
  font-size:13.5px;color:var(--muted);
  position:relative;z-index:60;
}
.topbar__in{display:flex;flex-wrap:wrap;gap:8px 26px;align-items:center;padding-block:9px}
.topbar__item{display:inline-flex;align-items:center;gap:8px}
.topbar__item .ic{font-size:15px;color:var(--cyan)}
.topbar strong{color:var(--text)}
.topbar a:hover{color:var(--cyan)}
.topbar__sep{color:var(--muted-2);opacity:.6}

/* =========================================================
   HEADER
   ========================================================= */
.header{
  position:sticky;top:0;z-index:70;
  background:rgba(6,6,11,.72);
  backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.header.is-stuck{border-bottom-color:var(--line);background:rgba(6,6,11,.92)}
.header__in{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}

.logo{display:inline-flex;align-items:center;gap:12px}
.logo__mark{
  width:42px;height:42px;flex:none;border-radius:12px;
  background:var(--grad);display:block;overflow:hidden;
  box-shadow:0 0 26px -6px rgba(168,85,247,.9),inset 0 0 0 1.2px rgba(255,255,255,.3);
  transition:box-shadow .3s var(--ease),transform .3s var(--ease);
}
.logo__mark svg{width:100%;height:100%;display:block}
.logo:hover .logo__mark{transform:translateY(-1px);box-shadow:0 0 34px -4px rgba(168,85,247,1),inset 0 0 0 1.2px rgba(255,255,255,.45)}
.logo__txt{display:flex;flex-direction:column;line-height:1.15}
.logo__txt strong{font-size:16px;letter-spacing:.05em;font-weight:800}
.logo__txt small{font-size:10.5px;color:var(--muted-2);letter-spacing:.06em}

.nav{display:flex;align-items:center;gap:4px}
.nav a{
  padding:9px 14px;border-radius:999px;font-size:14.5px;font-weight:500;color:var(--muted);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav a:hover,.nav a.is-active{color:var(--text);background:var(--surface)}
.nav .nav__cta{
  margin-left:8px;background:var(--grad);color:#0a0410;font-weight:700;padding:10px 20px;
  box-shadow:0 10px 26px -12px rgba(168,85,247,.9);
}
.nav .nav__cta:hover{color:#0a0410;transform:translateY(-1px)}

.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line-2);border-radius:12px;
  background:var(--surface);cursor:pointer;padding:0;place-items:center;gap:5px;
}
.burger span{display:block;width:19px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s var(--ease),opacity .2s}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* =========================================================
   HERO
   ========================================================= */
.hero{position:relative;overflow:hidden;isolation:isolate;padding-top:clamp(56px,8vw,96px)}
.hero__stage{position:absolute;inset:0;z-index:-1;pointer-events:none}

.hero__grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(120% 80% at 50% 0%,#000 20%,transparent 72%);
  -webkit-mask-image:radial-gradient(120% 80% at 50% 0%,#000 20%,transparent 72%);
}
.hero__glow{position:absolute;border-radius:50%;filter:blur(120px);opacity:.5}
.hero__glow--a{width:52vw;height:52vw;left:-14vw;top:-16vw;background:radial-gradient(circle,#22d3ee,transparent 66%)}
.hero__glow--b{width:56vw;height:56vw;right:-18vw;top:-8vw;background:radial-gradient(circle,#a855f7,transparent 66%)}

/* stage light beams */
.beam{
  position:absolute;top:-18%;width:190px;height:130%;
  transform-origin:top center;
  clip-path:polygon(46% 0,54% 0,100% 100%,0 100%);
  filter:blur(2px);
  opacity:.34;
  animation:sweep 9s ease-in-out infinite alternate;
  mix-blend-mode:screen;
}
.beam--1{left:6%;background:linear-gradient(180deg,rgba(34,211,238,.95),transparent 72%);animation-delay:-.5s}
.beam--2{left:30%;background:linear-gradient(180deg,rgba(168,85,247,.95),transparent 72%);animation-delay:-3s;animation-duration:11s}
.beam--3{right:28%;background:linear-gradient(180deg,rgba(255,61,139,.95),transparent 72%);animation-delay:-6s;animation-duration:10s}
.beam--4{right:5%;background:linear-gradient(180deg,rgba(255,200,87,.85),transparent 72%);animation-delay:-1.8s;animation-duration:12s}
@keyframes sweep{
  0%{transform:rotate(-16deg) scaleX(.8);opacity:.18}
  50%{transform:rotate(4deg) scaleX(1.15);opacity:.42}
  100%{transform:rotate(15deg) scaleX(.85);opacity:.2}
}

.hero__in{padding-block:clamp(30px,5vw,54px) clamp(48px,7vw,86px);text-align:center}
.hero__title{
  font-size:clamp(34px,6.2vw,68px);
  margin:0 auto 22px;max-width:16ch;
  letter-spacing:-.03em;
}
.hero__sub{
  max-width:66ch;margin:0 auto 34px;color:var(--muted);font-size:clamp(15.5px,1.6vw,18.5px);
}
.hero__sub strong{color:var(--text)}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

.hero__stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  margin:clamp(46px,6vw,72px) auto 0;max-width:900px;
}
.hero__stats li{
  padding:22px 14px;border:1px solid var(--line);border-radius:var(--r-m);
  background:var(--surface);backdrop-filter:blur(6px);
}
.hero__stats b{
  display:block;font-size:clamp(26px,3.6vw,38px);font-weight:800;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__stats span{display:block;font-size:12.5px;color:var(--muted);margin-top:6px;letter-spacing:.02em}

/* marquee */
.marquee{
  border-block:1px solid var(--line);
  background:linear-gradient(90deg,rgba(34,211,238,.06),rgba(168,85,247,.06),rgba(255,61,139,.06));
  overflow:hidden;padding-block:13px;
}
.marquee__track{
  display:flex;gap:22px;width:max-content;white-space:nowrap;
  font-size:13.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  animation:slide 42s linear infinite;
}
.marquee__track span:nth-child(even){color:var(--violet)}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* =========================================================
   SECTIONS
   ========================================================= */
.sec{padding-block:var(--sec-y);position:relative}
.sec--alt{background:
  radial-gradient(90% 60% at 50% 0%,rgba(168,85,247,.07),transparent 60%),
  var(--bg-2);
  border-block:1px solid var(--line);
}
.sec__head{max-width:760px;margin:0 auto clamp(38px,5vw,60px);text-align:center}
.sec__title{font-size:clamp(27px,3.8vw,44px);margin-bottom:16px;letter-spacing:-.025em}
.sec__lead{color:var(--muted);font-size:clamp(15px,1.5vw,17px)}

/* ---------- service cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px}
.card{
  position:relative;padding:30px 28px 28px;border-radius:var(--r-l);
  border:1px solid var(--line);background:var(--surface);
  transition:transform .35s var(--ease),border-color .35s var(--ease),background .35s var(--ease);
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:var(--grad);opacity:0;transition:opacity .35s var(--ease);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.card:hover{transform:translateY(-6px);background:var(--surface-2)}
.card:hover::before{opacity:1}
.card__ic{
  width:52px;height:52px;border-radius:15px;display:grid;place-items:center;margin-bottom:20px;
  border:1px solid var(--line-2);
}
.card__ic svg{width:26px;height:26px}
.card__ic--cyan{background:rgba(34,211,238,.13)}   .card__ic--cyan svg{fill:var(--cyan)}
.card__ic--violet{background:rgba(168,85,247,.15)} .card__ic--violet svg{fill:var(--violet)}
.card__ic--pink{background:rgba(255,61,139,.14)}   .card__ic--pink svg{fill:var(--pink)}
.card__ic--amber{background:rgba(255,200,87,.14)}  .card__ic--amber svg{fill:var(--amber)}
.card h3{font-size:20px;margin-bottom:11px}
.card p{color:var(--muted);font-size:15px}
.card__list{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line-2);display:grid;gap:9px}
.card__list li{position:relative;padding-left:22px;font-size:14px;color:var(--muted)}
.card__list li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;
  background:var(--grad);box-shadow:0 0 10px rgba(168,85,247,.8);
}

/* ---------- tabs ---------- */
.tabs__bar{
  display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:30px;
}
.tabs__btn{
  padding:11px 22px;border-radius:999px;border:1px solid var(--line);background:var(--surface);
  color:var(--muted);font-weight:600;font-size:14.5px;cursor:pointer;
  transition:all .25s var(--ease);
}
.tabs__btn:hover{color:var(--text);border-color:var(--line-2)}
.tabs__btn.is-active{
  background:var(--grad);color:#0a0410;border-color:transparent;
  box-shadow:0 10px 28px -12px rgba(168,85,247,.9);
}
.tabs__panel{animation:fade .4s var(--ease)}
.tabs__panel[hidden]{display:none}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

.spec{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}
.spec__item{
  padding:22px 24px;border-radius:var(--r-m);border:1px solid var(--line);background:var(--surface);
  border-left:3px solid transparent;border-image:none;
  transition:border-color .3s var(--ease),background .3s var(--ease),transform .3s var(--ease);
}
.spec__item:hover{background:var(--surface-2);transform:translateX(4px);border-left-color:var(--cyan)}
.spec__item b{display:block;font-size:16px;margin-bottom:6px}
.spec__item span{color:var(--muted);font-size:14.5px}

/* ---------- events ---------- */
.events{display:grid;grid-template-columns:repeat(auto-fit,minmax(258px,1fr));gap:18px}
.ev{
  position:relative;overflow:hidden;padding:74px 24px 26px;border-radius:var(--r-l);
  border:1px solid var(--line);
  background:var(--bg-3);
  transition:transform .35s var(--ease),border-color .35s var(--ease);
}
.ev::before{
  content:"";position:absolute;left:0;right:0;top:0;height:92px;opacity:.55;
  transition:opacity .35s var(--ease),transform .5s var(--ease);
}
.ev--a::before{background:radial-gradient(70% 130% at 22% 0%,rgba(34,211,238,.8),transparent 70%)}
.ev--b::before{background:radial-gradient(70% 130% at 22% 0%,rgba(168,85,247,.8),transparent 70%)}
.ev--c::before{background:radial-gradient(70% 130% at 22% 0%,rgba(255,61,139,.8),transparent 70%)}
.ev--d::before{background:radial-gradient(70% 130% at 22% 0%,rgba(255,200,87,.75),transparent 70%)}
.ev:hover{transform:translateY(-6px);border-color:var(--line-2)}
.ev:hover::before{opacity:.9;transform:scale(1.12)}
.ev h3{font-size:17.5px;margin-bottom:9px;position:relative}
.ev p{color:var(--muted);font-size:14.5px;position:relative}

/* ---------- why ---------- */
.why{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(32px,5vw,64px);align-items:start}
.why__left .sec__title,.why__left .sec__lead{text-align:left}
.why__left .sec__lead{margin-bottom:28px}
.why__right{display:grid;gap:14px}
.feat{
  display:flex;gap:18px;padding:22px 24px;border-radius:var(--r-m);
  border:1px solid var(--line);background:var(--surface);
  transition:background .3s var(--ease),transform .3s var(--ease);
}
.feat:hover{background:var(--surface-2);transform:translateX(5px)}
.feat b{
  font-size:22px;font-weight:800;line-height:1;flex:none;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.feat h3{font-size:16.5px;margin-bottom:6px}
.feat p{color:var(--muted);font-size:14.5px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:18px;counter-reset:s}
.step{position:relative;padding:28px 22px 24px;border-radius:var(--r-l);border:1px solid var(--line);background:var(--surface)}
.step__n{
  position:absolute;top:-19px;left:22px;
  width:40px;height:40px;border-radius:13px;display:grid;place-items:center;
  background:var(--grad);color:#0a0410;font-weight:800;font-size:17px;
  box-shadow:0 10px 26px -10px rgba(168,85,247,.95);
}
.step h3{font-size:16.5px;margin:12px 0 8px}
.step p{color:var(--muted);font-size:14.5px}

/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;align-items:start}
.plan{
  position:relative;padding:32px 28px;border-radius:var(--r-xl);
  border:1px solid var(--line);background:var(--surface);
  display:flex;flex-direction:column;gap:16px;
}
.plan--hot{
  background:linear-gradient(180deg,rgba(168,85,247,.14),rgba(34,211,238,.05));
  border-color:rgba(168,85,247,.45);
  box-shadow:0 26px 70px -30px rgba(168,85,247,.9);
}
.plan__tag{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--grad);color:#0a0410;font-size:11.5px;font-weight:800;
  letter-spacing:.08em;text-transform:uppercase;padding:6px 16px;border-radius:999px;white-space:nowrap;
}
.plan h3{font-size:22px}
.plan__for{color:var(--muted);font-size:14px;margin-top:-8px}
.plan__price{font-size:27px;font-weight:800;letter-spacing:-.02em}
.plan__price span{font-size:14px;font-weight:500;color:var(--muted-2)}
.plan ul{display:grid;gap:11px;flex:1}
.plan li{position:relative;padding-left:26px;font-size:14.5px;color:var(--muted)}
.plan li::before{
  content:"";position:absolute;left:2px;top:7px;width:12px;height:7px;
  border-left:2px solid var(--cyan);border-bottom:2px solid var(--cyan);
  transform:rotate(-45deg);
}
.plans__note{
  margin-top:28px;text-align:center;color:var(--muted);font-size:14.5px;
}
.plans__note a{color:var(--cyan);font-weight:700;border-bottom:1px dashed rgba(34,211,238,.5)}

/* ---------- quotes ---------- */
.quotes{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.quote{
  margin:0;padding:30px 28px;border-radius:var(--r-l);
  border:1px solid var(--line);background:var(--surface);position:relative;
}
.quote::before{
  content:"”";position:absolute;top:6px;right:22px;font-size:76px;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;opacity:.5;
}
.quote blockquote{margin:0 0 20px;font-size:15.5px;color:var(--text);position:relative}
.quote figcaption{display:flex;flex-direction:column;gap:3px;padding-top:16px;border-top:1px dashed var(--line-2)}
.quote figcaption b{font-size:15px}
.quote figcaption span{font-size:13px;color:var(--muted-2)}

/* ---------- faq ---------- */
.faq{display:grid;gap:12px}
.faq__item{
  border:1px solid var(--line);border-radius:var(--r-m);background:var(--surface);
  overflow:hidden;transition:border-color .3s var(--ease),background .3s var(--ease);
}
.faq__item[open]{border-color:rgba(168,85,247,.4);background:var(--surface-2)}
.faq__item summary{
  cursor:pointer;list-style:none;padding:19px 56px 19px 24px;position:relative;
  font-weight:600;font-size:16px;
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{
  content:"";position:absolute;right:24px;top:50%;width:11px;height:11px;
  border-right:2px solid var(--cyan);border-bottom:2px solid var(--cyan);
  transform:translateY(-70%) rotate(45deg);transition:transform .3s var(--ease);
}
.faq__item[open] summary::after{transform:translateY(-25%) rotate(-135deg)}
.faq__a{padding:0 24px 21px;color:var(--muted);font-size:15px}

/* ---------- contact ---------- */
.contact{overflow:hidden;position:relative;background:var(--bg-2);border-top:1px solid var(--line)}
.contact__glow{
  position:absolute;width:60vw;height:60vw;left:50%;top:-30vw;transform:translateX(-50%);
  background:radial-gradient(circle,rgba(168,85,247,.28),transparent 62%);
  filter:blur(90px);pointer-events:none;
}
.contact__in{
  position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:clamp(32px,5vw,60px);align-items:start;
}
.contact__left .sec__title,.contact__left .sec__lead{text-align:left}
.contact__list{display:grid;gap:16px;margin-top:32px}
.contact__list li{display:flex;gap:15px;align-items:flex-start}
.contact__ic{
  width:44px;height:44px;flex:none;border-radius:13px;display:grid;place-items:center;
  background:var(--surface);border:1px solid var(--line-2);
}
.contact__ic svg{width:21px;height:21px;fill:var(--cyan)}
.contact__list b{display:block;font-size:13px;color:var(--muted-2);font-weight:600;letter-spacing:.04em;text-transform:uppercase}
.contact__list a,.contact__list div>span{font-size:16.5px;font-weight:600}
.contact__list a:hover{color:var(--cyan)}
/* hai so hotline: nam ngang tren man hinh rong, tu xuong dong khi hep */
.contact__phones{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px}
.contact__phones a{position:relative}
.contact__phones a + a::before{
  content:"";position:absolute;left:-8px;top:50%;transform:translateY(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--line-2);
}

.form{
  padding:clamp(24px,3.5vw,36px);border-radius:var(--r-xl);
  border:1px solid var(--line-2);background:rgba(255,255,255,.045);
  backdrop-filter:blur(14px);box-shadow:var(--shadow);
  display:grid;gap:16px;
}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:grid;gap:8px}
.field>span{font-size:13.5px;font-weight:600;color:var(--muted)}
.field i{color:var(--pink);font-style:normal}
.field input,.field select,.field textarea{
  width:100%;padding:13px 16px;border-radius:12px;
  background:rgba(0,0,0,.3);border:1px solid var(--line-2);
  font-size:15px;transition:border-color .25s var(--ease),background .25s var(--ease);
}
.field textarea{resize:vertical;min-height:110px}
.field input::placeholder,.field textarea::placeholder{color:#5c6280}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);background:rgba(0,0,0,.45);
  box-shadow:0 0 0 3px rgba(34,211,238,.16);
}
.field input.is-error,.field select.is-error{border-color:var(--pink);box-shadow:0 0 0 3px rgba(255,61,139,.16)}
.field select{appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2322d3ee'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;background-size:20px;padding-right:42px;
}
.field select option{background:#12121f;color:var(--text)}
.form__hint{font-size:13px;color:var(--muted-2);text-align:center}
.form__status{font-size:14px;text-align:center;min-height:1.2em}
.form__status.ok{color:var(--cyan)}
.form__status.err{color:var(--pink)}

/* =========================================================
   FOOTER
   ========================================================= */
.footer{background:var(--bg);border-top:1px solid var(--line);padding-top:clamp(46px,6vw,70px)}
.footer__in{
  display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));
  gap:clamp(26px,4vw,48px);padding-bottom:44px;
}
.footer__brand p{color:var(--muted);font-size:14.5px;margin-top:18px;max-width:46ch}
.footer__legal{
  font-size:12.5px!important;font-weight:700;letter-spacing:.06em;
  color:var(--text)!important;margin-top:18px!important;
}
.footer__legal + p{margin-top:8px}
.footer__col{display:flex;flex-direction:column;gap:11px}
.footer__col h4{font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:var(--text);margin-bottom:6px}
.footer__col a,.footer__col span{color:var(--muted);font-size:14.5px}
.footer__col a:hover{color:var(--cyan)}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding-block:20px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--muted-2);
}

/* =========================================================
   FAB
   ========================================================= */
.fab{position:fixed;right:18px;bottom:18px;z-index:80;display:grid;gap:11px;justify-items:end}
.fab__btn{
  width:52px;height:52px;border-radius:50%;border:none;cursor:pointer;
  display:grid;place-items:center;color:#fff;
  box-shadow:0 12px 30px -8px rgba(0,0,0,.8);
  transition:transform .25s var(--ease),width .3s var(--ease);
}
.fab__btn svg{width:24px;height:24px;fill:currentColor}
.fab__btn:hover{transform:scale(1.08)}
.fab__btn--call{background:linear-gradient(135deg,#22d3ee,#a855f7);position:relative}
.fab__btn--call::after{
  content:"";position:absolute;inset:0;border-radius:50%;border:2px solid rgba(34,211,238,.7);
  animation:ring 2.2s var(--ease) infinite;
}
@keyframes ring{0%{transform:scale(1);opacity:.9}100%{transform:scale(1.7);opacity:0}}
.fab__label{display:none}
.fab__btn--zalo{background:#0068ff;font-size:13px;font-weight:800;letter-spacing:.02em}
.fab__btn--top{
  background:var(--surface-2);border:1px solid var(--line-2);color:var(--text);
  backdrop-filter:blur(10px);opacity:0;pointer-events:none;transform:translateY(10px);
}
.fab__btn--top.is-show{opacity:1;pointer-events:auto;transform:none}

/* =========================================================
   REVEAL
   ========================================================= */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:1024px){
  .why{grid-template-columns:1fr}
  .contact__in{grid-template-columns:1fr}
  .footer__in{grid-template-columns:1fr 1fr}
  .footer__brand{grid-column:1/-1}
}

@media (max-width:860px){
  .burger{display:grid}
  .nav{
    position:fixed;inset:0 0 auto;top:0;height:100dvh;
    flex-direction:column;align-items:stretch;justify-content:center;gap:6px;
    background:rgba(6,6,11,.97);backdrop-filter:blur(20px);
    padding:80px 26px 40px;
    transform:translateX(100%);transition:transform .38s var(--ease);
    overflow-y:auto;
  }
  .nav.is-open{transform:none}
  .nav a{padding:15px 18px;font-size:18px;border-radius:14px;text-align:center}
  .nav .nav__cta{margin:14px 0 0;padding:16px 20px}
  .burger{position:relative;z-index:75}

  .hero__stats{grid-template-columns:repeat(2,1fr)}
  .form__row{grid-template-columns:1fr}
  .topbar__item--hide-sm{display:none}
}

@media (max-width:520px){
  .hero__title{font-size:clamp(29px,8.4vw,40px)}
  .card,.plan,.quote{padding:24px 20px}
  .fab{right:12px;bottom:12px}
  .fab__btn{width:48px;height:48px}
  .footer__in{grid-template-columns:1fr}
  .footer__bottom{justify-content:center;text-align:center}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}