:root{
  --primary:#007e54;--hover:#006442;--accent:#00c587;
  --ink:#103d30;--bg:#eef8f3;--border:#cfe4da;--muted:#59756a;
  --dark:#073b2c;--dark2:#0a5038;
  --card:#ffffff;--card-soft:#f1f8f4;
  --radius:16px;--shadow:0 18px 50px #075b291a;
  font-family:system-ui,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
section[id],main[id]{scroll-margin-top:90px}
:focus-visible{outline:3px solid var(--primary);outline-offset:4px}
.skip-link{position:fixed;top:8px;left:16px;z-index:50;padding:12px 18px;background:#fff;border-radius:8px;transform:translateY(-160%)}
.skip-link:focus{transform:translateY(0)}
.menu-toggle{display:none}
body{margin:0;background:radial-gradient(ellipse at top,#e0f4e9,transparent 70%);line-height:1.6}
h1,h2,h3{margin:0;letter-spacing:-.4px;color:var(--ink)}
p{margin:0}
a{color:#008858;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* language visibility */
html[lang="vi"] [data-en]{display:none}
html[lang="en"] [data-vi]{display:none}

/* buttons */
.btn{font:inherit;font-weight:650;border:0;cursor:pointer;display:inline-flex;align-items:center;gap:8px;
  padding:13px 22px;border-radius:11px;text-decoration:none;transition:background .15s,transform .05s,box-shadow .15s}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 22px #009b6833}
.btn-primary:hover{background:var(--hover)}
.btn-ghost{background:#e8f4ed;color:#176747}
.btn-ghost:hover{background:#dcefe4}
.btn-outline{border:1.5px solid var(--primary);color:var(--primary);background:#fff}
.btn-outline:hover{background:#f1f8f4}
.btn-light{background:#fff;color:var(--hover)}
.btn-light:hover{background:#eafaf2}
.btn-lg{padding:15px 26px;font-size:16px}

/* brand mark */
.brand{display:flex;align-items:center;gap:11px;font-size:21px;font-weight:750;letter-spacing:-.5px;color:var(--ink)}
.brand img{width:26px;height:39px}
.brand span{color:var(--accent)}
.brand--light{color:#fff}
.brand--light span{color:var(--accent)}

/* top nav */
.nav{position:sticky;top:0;z-index:20;backdrop-filter:saturate(1.3) blur(8px);
  background:#eef8f3cc;border-bottom:1px solid var(--border)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:66px;gap:16px}
.nav-links{display:flex;align-items:center;gap:10px}
.nav-links a.menu{color:var(--muted);font-weight:600;padding:8px 10px;border-radius:8px}
.nav-links a.menu:hover{background:#dcefe4;color:var(--hover);text-decoration:none}
.lang-toggle{font:inherit;font-weight:700;cursor:pointer;border:1.5px solid var(--border);background:#fff;
  color:var(--hover);border-radius:9px;padding:8px 13px;min-width:48px}
.lang-toggle:hover{border-color:var(--primary)}

/* hero */
.hero{position:relative;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding-top:64px;padding-bottom:64px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:13px;letter-spacing:.3px;
  text-transform:uppercase;color:var(--primary);background:#d7f1e4;padding:6px 12px;border-radius:999px}
.hero h1{font-size:clamp(32px,4.6vw,52px);line-height:1.08;margin:20px 0 0}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero .lead{font-size:18px;color:#2b5546;margin:20px 0 0;max-width:540px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:26px;color:var(--muted);font-size:14px;font-weight:600}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-art{position:relative;border-radius:22px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);
  background:var(--dark) url('/assets/technology-emerald-v1.webp') center/cover no-repeat;min-height:430px}
.hero-art .overlay{position:absolute;inset:0;background:linear-gradient(160deg,#05372688,#0a503822);display:flex;
  flex-direction:column;justify-content:flex-end;padding:30px}
.hero-art .badge{align-self:flex-start;background:#ffffffe6;color:var(--hover);font-weight:700;font-size:13px;
  padding:7px 13px;border-radius:999px;margin-bottom:auto}
.hero-art .tagline{color:#eafaf2;font-size:15px;max-width:340px}

/* generic section */
.section{padding:72px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 44px}
.section-head .eyebrow{margin-bottom:14px}
.section-head h2{font-size:clamp(26px,3.2vw,36px)}
.section-head p{color:var(--muted);font-size:17px;margin-top:14px}
.section.alt{background:linear-gradient(180deg,#ffffff,#f4fbf7);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}

/* product cards */
.grid{display:grid;gap:22px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px;
  transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card .ico{width:46px;height:46px;border-radius:12px;background:var(--card-soft);display:flex;align-items:center;
  justify-content:center;color:var(--primary);margin-bottom:16px}
.card .ico svg{width:24px;height:24px}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}
.card .tag{display:inline-block;margin-top:14px;font-size:12px;font-weight:700;color:var(--hover);
  background:#d7f1e4;padding:4px 10px;border-radius:999px}
.card.featured{background:linear-gradient(160deg,var(--dark),var(--dark2));border-color:transparent;color:#fff}
.card.featured h3{color:#fff}
.card.featured p{color:#cdeede}
.card.featured .ico{background:#ffffff1f;color:var(--accent)}
.card.featured .tag{background:#ffffff26;color:#fff}

/* how it works flow */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.flow .step{position:relative;background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:24px 18px;text-align:center}
.flow .step .n{width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;font-weight:700;
  display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-size:14px}
.flow .step h3{font-size:16px;margin-bottom:6px}
.flow .step p{font-size:13.5px;color:var(--muted)}
.flow .step:not(:last-child)::after{content:"›";position:absolute;right:-12px;top:50%;transform:translateY(-50%);
  color:var(--accent);font-weight:800;font-size:28px;line-height:1;z-index:1}

/* media slots (images / gifs / video) */
.media{position:relative;margin:0;border-radius:18px;overflow:hidden;border:1px solid var(--border);
  background:var(--card-soft);box-shadow:var(--shadow)}
.media>img,.media>video{display:block;width:100%;height:100%;object-fit:cover}
.ratio-16x9{aspect-ratio:16/9}
.ratio-4x3{aspect-ratio:4/3}
.media-ph{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:11px;padding:24px;text-align:center;color:var(--muted);
  background:linear-gradient(0deg,#ffffffd0,#ffffffd0),
    repeating-linear-gradient(45deg,#d7f1e4 0 13px,#eef8f3 13px 26px)}
.media-ph svg{width:40px;height:40px;color:var(--primary);opacity:.85}
.media-ph b{color:var(--ink);font-size:15px;font-weight:700}
.media-ph small{font-size:12.5px}
.media-ph code{background:#e8f4ed;color:var(--hover);padding:3px 9px;border-radius:6px;font-size:12.5px;font-weight:600}

/* gallery of screenshots */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

/* feature list */
.feat{display:flex;gap:14px;align-items:flex-start}
.feat .ico{flex:none;width:40px;height:40px;border-radius:11px;background:var(--card-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center}
.feat .ico svg{width:22px;height:22px}
.feat h3{font-size:16px;margin-bottom:4px}
.feat p{font-size:14.5px;color:var(--muted)}

/* security section */
.sec-row{align-items:center;gap:40px}
.sec-title{margin:14px 0 10px;font-size:clamp(24px,3vw,32px)}
.muted-p{color:var(--muted)}
.btn-outline-light{border:1.5px solid #ffffff66;color:#fff;background:transparent}
.btn-outline-light:hover{background:#ffffff1a}

/* security list */
.sec-list{display:grid;grid-template-columns:1fr;gap:16px;margin-top:8px}
.sec-item{display:flex;gap:11px;align-items:flex-start;font-size:15px}
.sec-item svg{flex:none;width:21px;height:21px;color:var(--primary);margin-top:2px}

/* contact / cta band */
.cta-band{background:linear-gradient(160deg,var(--dark),var(--dark2));border-radius:24px;color:#fff;
  padding:52px 44px;text-align:center;box-shadow:var(--shadow)}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px)}
.cta-band p{color:#cdeede;max-width:560px;margin:14px auto 0;font-size:16px}
.cta-band .hero-cta{justify-content:center}
.cta-band .note{color:#9fd9bf;font-size:13.5px;margin-top:22px}
.cta-band a.mail{color:#fff;font-weight:700;text-decoration:underline}

/* footer */
.footer{border-top:1px solid var(--border);margin-top:8px;padding:40px 0 48px;color:var(--muted);font-size:14px}
.footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.footer .f-links{display:flex;gap:18px;flex-wrap:wrap}
.footer .f-links a{color:var(--muted);font-weight:600}
.footer .f-links a:hover{color:var(--hover)}

/* process flow with 3 steps */
.flow.cols-3{grid-template-columns:repeat(3,1fr)}

/* FAQ accordion */
.faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font:inherit;font-weight:650;font-size:16px;color:var(--ink);text-align:left;cursor:pointer;
  background:transparent;border:0;padding:18px 20px}
.faq-q:hover{color:var(--hover)}
.faq-q:focus-visible{outline:2px solid #8edbbe;outline-offset:-2px}
.faq-chevron{flex:none;width:20px;height:20px;color:var(--primary);transition:transform .2s}
.faq-q[aria-expanded="true"] .faq-chevron{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a>p{color:var(--muted);font-size:15px;padding:0 20px 18px}

/* contact form */
.trial-card{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:40px;padding:36px;border:1px solid var(--border);border-radius:24px;background:var(--card)}
.trial-card h2{margin:18px 0;font-size:clamp(26px,4vw,38px);line-height:1.2}
.trial-card p,.trial-card li{color:var(--muted);line-height:1.8}
.trial-card ul{padding-left:20px;margin:20px 0 0}.trial-card li+li{margin-top:8px}
.trial-actions{align-self:center;text-align:center;min-width:0}.trial-price{font-size:48px;font-weight:750;color:var(--primary)}
.trial-actions .btn{width:100%;justify-content:center;margin:18px 0}.trial-support{display:block;color:var(--primary);font-weight:600}
.trial-actions small{display:block;margin-top:16px;color:var(--muted);line-height:1.6}
@media(max-width:760px){.trial-card{grid-template-columns:1fr;padding:24px;gap:24px}}
.contact-form{max-width:620px;margin:0 auto;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius);padding:28px}
.field{margin-bottom:18px}
.field label{display:block;font-weight:650;font-size:14px;margin-bottom:7px;color:var(--ink)}
.field .req{color:#d84a3a}
.field .opt{font-weight:400;color:var(--muted);font-size:13px}
.field input,.field textarea{width:100%;padding:12px 13px;font:inherit;color:var(--ink);background:#fff;
  border:1.5px solid var(--border);border-radius:10px;resize:vertical}
.field input:focus,.field textarea:focus{outline:2px solid #8edbbe;outline-offset:1px;border-color:var(--primary)}
.field input[aria-invalid="true"],.field textarea[aria-invalid="true"]{border-color:#d84a3a}
.field-error{color:#c0392b;font-size:13px;margin:7px 0 0;font-weight:600}
.form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.form-status{margin:18px 0 0;padding:12px 14px;border-radius:10px;font-size:14.5px;font-weight:600}
.form-status.ok{background:#d7f1e4;color:#0c6b47}
.form-status.err{background:#fdecea;color:#b0332a}
.form-note{margin:16px 0 0;color:var(--muted);font-size:14px}
.btn[aria-busy="true"]{opacity:.7;cursor:wait}

/* responsive */
@media(max-width:900px){
  .nav .wrap{position:relative;height:60px;gap:8px}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:8px 12px;margin-left:auto;border:1px solid var(--border);border-radius:9px;background:#fff;color:var(--ink);font:inherit;font-weight:600;cursor:pointer}
  .nav-links{position:absolute;top:60px;left:0;right:0;display:none;background:#fff;padding:16px;border-bottom:1px solid var(--border);box-shadow:0 12px 24px #103d3012;flex-wrap:wrap}
  .nav-links.is-open{display:flex}
  .nav-links a.menu{display:none}
  .nav-links.is-open a.menu{display:block;flex:1 1 100%;padding:12px}
  .flow.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:1fr 1fr;gap:30px 18px}
  .flow .step:nth-child(2n)::after{display:none}
  .gallery{grid-template-columns:1fr 1fr}
  .hero .wrap{grid-template-columns:1fr;gap:34px;padding-top:44px;padding-bottom:48px}
  .hero-art{min-height:300px}
  .sec-row{gap:28px}
  .sec-list{grid-template-columns:1fr}
}
@media(max-width:620px){
  .wrap{padding:0 16px}
  .section{padding:48px 0}
  .section-head{margin-bottom:34px}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr;gap:30px}
  .flow.cols-3{grid-template-columns:1fr}
  .flow .step:not(:last-child)::after{content:"›";display:block;right:auto;left:50%;top:auto;bottom:-27px;
    transform:translateX(-50%) rotate(90deg)}
  .gallery{grid-template-columns:1fr}
  .nav-links{gap:8px}
  .brand{font-size:18px}
  .brand img{width:22px;height:33px}
  .hero h1{margin-top:14px}
  .hero .lead{font-size:16.5px}
  .hero-meta{gap:10px 16px;margin-top:20px}
  .cta-band{padding:36px 20px}
  .hero-cta{gap:10px}
  .hero-cta .btn{flex:1 1 100%;justify-content:center}
  .card{padding:22px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}
@media(max-width:380px){
  .nav-links .btn-ghost{padding:9px 13px}
}

.card .ico.product-logo{background:transparent;border-radius:0}.card .product-logo img{width:40px;height:40px;object-fit:contain}

/* Gentle motion; separate translate preserves each card's hover transform. */
.motion-ready{opacity:0;translate:0 22px;transition:opacity .6s ease,translate .6s cubic-bezier(.2,.7,.2,1),transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.motion-ready.motion-visible{opacity:1;translate:0 0}
.motion-delay-1{transition-delay:.07s}.motion-delay-2{transition-delay:.14s}.motion-delay-3{transition-delay:.21s}
.nav{transition:box-shadow .25s ease,background .25s ease}.nav.is-scrolled{box-shadow:0 6px 24px #073b2c12}
@media(hover:hover) and (pointer:fine){
 .card:hover{border-color:#77c9a8;transform:translateY(-4px);box-shadow:0 14px 32px #073b2c12;transition-delay:0s}
 .btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px #073b2c18}
}
.btn{transition:background .18s ease,transform .18s ease,box-shadow .18s ease}.btn:active{transform:translateY(0)}
@media(prefers-reduced-motion:reduce){.motion-ready{opacity:1;translate:none}}

.gallery-card{margin:0;overflow:hidden;background:var(--card);border:1px solid var(--border);border-radius:var(--radius)}
.gallery-image{display:block;background:#16201b;overflow:hidden}.gallery-image img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;transition:transform .25s ease}
.gallery-card figcaption{padding:16px 18px}.gallery-card figcaption strong{display:block}.gallery-card figcaption small{display:block;margin-top:6px;color:var(--muted);font-size:12px}
.package-studio{display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:center}.package-tools{border-top:1px solid var(--border,#cfe4da)}.package-tool{display:flex;align-items:center;gap:22px;padding:32px 20px;border-bottom:1px solid #cfe4da;cursor:pointer;transition:background .2s}.package-tool:has(input:checked){background:#d9f4e8;border-radius:12px}.package-tool input{width:18px;height:18px;accent-color:#009b68;flex:none}.package-tool img{width:48px;height:48px;object-fit:contain}.package-tool strong{font-size:23px}.package-tool div{flex:1}.package-tool p{font-size:14px;color:#59756a;margin:6px 0 0}.package-tool>span{font-weight:700;white-space:nowrap}.package-ticket{background:#103d30;color:#fff;border-radius:24px;padding:36px;box-shadow:0 20px 50px #103d3015}.package-ticket h3{font-size:25px;line-height:1.4;margin:24px 0 0}.package-price{font-size:46px;font-weight:750;letter-spacing:-2px;margin-top:20px}.package-ticket p,.package-ticket small{color:#cee8dc;line-height:1.8}.package-ticket small{display:block;margin-top:16px;font-size:13px}.package-ticket .btn{margin-top:20px;width:100%;justify-content:center}.package-divider{border-bottom:1px dashed #6b9e88;margin:24px 0}.package-ticket .eyebrow{background:#265844;color:#b7f3d9}@media(max-width:760px){.package-studio{grid-template-columns:1fr;gap:24px}.package-tool{padding:24px 12px;gap:14px;flex-wrap:wrap}.package-tool strong{font-size:20px}.package-tool img{width:36px;height:36px}.package-tool>span{margin-left:70px}.package-ticket{padding:28px}.package-price{font-size:38px}}@media(prefers-reduced-motion:reduce){.package-tool{transition:none}}
.package-ticket h3{color:#fff}.purchase-receipt .purchase-kicker{color:#a8e9ca}
.media>video{object-fit:contain;background:#0e2a20}
.media-note{margin-top:14px;text-align:center;font-size:14px}
.media-note a{color:var(--primary);font-weight:600;text-decoration:none}
.media-note a:hover{text-decoration:underline}

/* IntraCore logo: preserve the square artwork proportions. */
.brand img{width:40px;height:40px;object-fit:contain}
@media(max-width:600px){.brand img{width:32px;height:32px}}

.contact-layout{display:grid;grid-template-columns:minmax(0,620px) minmax(280px,360px);gap:28px;justify-content:center;align-items:start}.contact-layout .contact-form{width:100%;margin:0;min-width:0}.zalo-community{padding:28px;background:var(--card);border:1px solid var(--border);border-radius:16px;text-align:center}.zalo-community h3{margin:0 0 12px;color:var(--ink)}.zalo-community>p{color:var(--muted)}.zalo-qr{display:block;position:relative;overflow:hidden;aspect-ratio:1;background:#fff;margin:20px auto;max-width:280px}.zalo-qr img{position:absolute;width:175%;height:auto;max-width:none;left:-37.5%;top:-83.333%}@media(max-width:900px){.contact-layout{grid-template-columns:minmax(0,620px)}.zalo-community{width:100%}}

.pricing-tabs{display:flex;justify-content:center;gap:6px;border:1px solid var(--primary);border-radius:18px;background:#fff;padding:5px;width:fit-content;margin:0 auto 24px}.pricing-tabs button{font:inherit;padding:12px 24px;background:transparent;border:0;border-radius:13px;color:var(--primary);cursor:pointer}.pricing-tabs button[aria-pressed="true"]{background:var(--primary);color:#fff}.pricing-term{text-align:center;color:var(--muted);margin-bottom:32px}.pricing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.pricing-card{display:flex;flex-direction:column;padding:30px 24px;background:#fff;border:1px solid var(--border);border-radius:20px;text-align:center;box-shadow:0 12px 30px #103d300a}.pricing-card.featured{border:2px solid var(--primary)}.pricing-card h3{font-size:22px;min-height:56px;margin:8px 0 20px}.pricing-price{font-size:clamp(28px,3vw,36px);font-weight:750;color:var(--primary);white-space:nowrap}.pricing-caption{font-size:14px;color:var(--muted);margin:10px 0 24px}.pricing-card label{font-size:14px;margin-bottom:8px}.pricing-card select{font:inherit;max-width:100%;padding:10px;border:1px solid var(--border);border-radius:8px;margin-bottom:16px;background:#fff}.pricing-card .btn{justify-content:center;margin-top:auto}.pricing-card ul{border-top:1px solid var(--border);padding:20px 0 0;margin:24px 0 0;list-style:none;text-align:left}.pricing-card li{color:var(--muted);line-height:1.6;padding-left:24px;position:relative;margin:10px 0}.pricing-card li::before{content:'✓';color:var(--primary);position:absolute;left:0}#trialPlans{margin-top:32px}[hidden]{display:none!important}@media(max-width:900px){.pricing-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:620px){.pricing-grid{grid-template-columns:1fr}.pricing-tabs button{padding:12px 16px}.pricing-card h3{min-height:0}}

/* Compact account action aligned with the navigation language control. */
.nav .btn-primary[href="/account"]{padding:9px 18px;min-height:42px;line-height:1.4;box-shadow:0 3px 10px #009b681f}