:root{
  --font-body:"Open Sans",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-heading:"IBM Plex Sans","Open Sans",system-ui,sans-serif;
  --vnp-primary:#1461a6;
  --vnp-primary-light:#3b8fd9;
  --vnp-primary-pale:#e8f2fc;
  --vnp-primary-deep:#0f4d85;
  --vnp-secondary:#c1121f;
  --vnp-secondary-deep:#8f1218;
  --vnp-bg-gray:#f3f4f6;
  --vnp-text:#1f1f1f;
  --vnp-muted:#262829;
  --vnp-muted-soft:#262829;
  --vnp-line:rgba(20,97,166,.18);
  --vnp-glass:rgba(255,255,255,.55);
  --vnp-glass-border:rgba(255,255,255,.65);
  --gradient-blue:linear-gradient(135deg,var(--vnp-primary-deep) 0%,var(--vnp-primary) 45%,var(--vnp-primary-light) 100%);
  --gradient-blue-h:linear-gradient(90deg,var(--vnp-primary-deep),var(--vnp-primary),var(--vnp-primary-light));
}
*{border-radius:0!important;box-sizing:border-box;}
html{
  scroll-behavior:smooth;
  font-family:var(--font-body)!important;
}
body{
  font-family:var(--font-body)!important;
  font-size:16px;
  font-weight:400;
  color:var(--vnp-text);
  line-height:1.5;
  background:var(--vnp-bg-gray);
  margin:0;
}
/* Tailwind utilities — ép font site (không Inter) */
.font-sans{font-family:var(--font-body)!important;}
.font-heading{font-family:var(--font-heading)!important;}
.font-thin,.font-extralight,.font-light,.font-normal{font-weight:400!important;}
.font-medium{font-weight:500!important;}
.font-semibold,.font-bold{font-weight:600!important;}
.font-extrabold,.font-black{font-family:var(--font-heading)!important;font-weight:700!important;}
.font-extrabold{font-weight:700!important;}

/* Fallback layout nếu utility Tailwind thiếu sau build */
.flex{display:flex!important;}
.inline-flex{display:inline-flex!important;}
.grid{display:grid!important;}
.flex-col{flex-direction:column!important;}
.flex-wrap{flex-wrap:wrap!important;}
.items-center{align-items:center!important;}
.items-start{align-items:flex-start!important;}
.items-end{align-items:flex-end!important;}
.justify-center{justify-content:center!important;}
.justify-between{justify-content:space-between!important;}
.shrink-0{flex-shrink:0!important;}
:is(
  h1,h2,h3,h4,h5,h6,
  .site-logo,
  .block-title,
  .hero-title,
  .slogan-line,
  .eyebrow,
  .turnitin-card-title,
  .turnitin-step-num,
  .screenshot-title,
  .coverflow-meta-title,
  .pricing-plan-label,
  .price-band-label,
  .price-band-amount,
  .pricing-plan-price,
  .saas-card-title,
  .saas-price-value,
  .saas-badge,
  .billing-save,
  .metric-value,
  .status-pill,
  .faq-item summary,
  .assistant-title,
  .assistant-action-label,
  .cert-meta-row dt,
  .journal-card-title,
  .integration-card h3,
  .feature-card h3,
  .turnitin-tag
){
  font-family:var(--font-heading);
  letter-spacing:-.02em;
  font-weight:600;
}
:is(h1,h2,h3,h4,h5,h6,.block-title,.hero-title,.slogan-line){
  font-weight:600;
}
.font-black,.text-3xl,.text-xl,.text-lg{font-family:var(--font-heading)!important;font-weight:700!important;}
p,.text-muted,.block-subtitle,.faq-item p,.feature-card p,.glass p,.glass-strong p,.cert-meta dd,.saas-desc{
  line-height:1.4;
}
::selection{background:rgba(20,97,166,.2);color:var(--vnp-text);}
.text-body{color:var(--vnp-text);}
.text-primary{color:var(--vnp-primary);}
.text-secondary{color:var(--vnp-secondary);}
.text-muted{color:var(--vnp-muted);}
.text-body-soft{color:var(--vnp-muted-soft);}
.text-balance{text-wrap:balance;}
.btn-nowrap,.whitespace-nowrap{white-space:nowrap!important;}
.text-sm{font-size:16px!important;}
.pricing-features li{font-size:16px;line-height:1.5;}
.pricing-card .text-body-soft,.saas-desc{text-wrap:pretty;line-height:1.5;}

/* Layout */
.vnp-container{max-width:1280px;margin:0 auto;padding:0 24px;}
.vnp-topline{height:3px;background:var(--gradient-blue-h);}
.vnp-nav{
  background:rgba(255,255,255,.72);
  backdrop-filter:blur(24px) saturate(1.4);
  -webkit-backdrop-filter:blur(24px) saturate(1.4);
  border-bottom:1px solid var(--vnp-line);
  box-shadow:0 8px 32px rgba(20,97,166,.06);
}
.vnp-nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:72px;flex-wrap:nowrap;
}

/* Logo text only */
.site-logo{
  font-size:22px;font-weight:700;letter-spacing:.08em;
  color:var(--vnp-primary-deep);text-decoration:none;
  white-space:nowrap;flex-shrink:0;
  text-transform:uppercase;
}
.site-logo:hover{color:var(--vnp-primary);}
.site-logo--footer{font-size:20px;}

/* Nav — single line */
.nav-main{display:flex;align-items:center;gap:clamp(14px,1.8vw,28px);flex-shrink:1;min-width:0;}
.nav-link{
  font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;
  color:#475569;transition:.2s;white-space:nowrap;flex-shrink:0;
  text-decoration:none;
}
.nav-link:hover,.nav-link.active{color:var(--vnp-primary);}
.btn-nav-cta{flex-shrink:0;padding:12px 18px!important;font-size:13px;}
.btn-nav-cta span{white-space:nowrap; text-transform: uppercase;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--vnp-line);
  color:var(--vnp-primary);background:rgba(255,255,255,.85);
  cursor:pointer;transition:.2s;position:relative;
}
.nav-toggle:hover{background:#fff;box-shadow:0 4px 16px rgba(20,97,166,.12);}
.nav-toggle-icon{position:absolute;font-size:18px;transition:opacity .2s,transform .2s;}
.nav-toggle-icon--close{opacity:0;transform:rotate(-90deg) scale(.8);}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon--open{opacity:0;transform:rotate(90deg) scale(.8);}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon--close{opacity:1;transform:none;}

/* Buttons */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  background:var(--gradient-blue-h);color:#fff;font-weight:700;
  padding:14px 22px;border:1px solid var(--vnp-primary-deep);
  box-shadow:0 12px 32px rgba(20,97,166,.28),inset 0 1px 0 rgba(255,255,255,.25);
  text-decoration:none;white-space:nowrap;
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 40px rgba(20,97,166,.34),inset 0 1px 0 rgba(255,255,255,.3);}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  background:rgba(255,255,255,.55);color:var(--vnp-primary-deep);font-weight:700;
  padding:14px 22px;border:1px solid rgba(20,97,166,.28);
  backdrop-filter:blur(20px) saturate(1.3);
  -webkit-backdrop-filter:blur(20px) saturate(1.3);
  box-shadow:0 8px 28px rgba(20,97,166,.1),inset 0 1px 0 rgba(255,255,255,.8);
  text-decoration:none;white-space:nowrap;
}
.btn-secondary:hover{background:rgba(255,255,255,.72);}

/* Glass system */
.glass,.glass-strong,.glass-card,.hero-panel,.metric,.feature-card,.integration-card,.pricing-card,.faq-item,.pain-row,.saas-card{
  position:relative;
}
.glass-card,.glass,.glass-strong,.hero-panel,.metric,.feature-card,.integration-card,.pricing-card,.faq-item,.pain-row,.saas-card{
  background:var(--vnp-glass);
  backdrop-filter:blur(22px) saturate(1.45);
  -webkit-backdrop-filter:blur(22px) saturate(1.45);
  border:1px solid var(--vnp-glass-border);
  box-shadow:
    0 4px 24px rgba(20,97,166,.08),
    0 1px 0 rgba(255,255,255,.9) inset,
    0 -1px 0 rgba(20,97,166,.04) inset;
}
.glass-strong{background:rgba(255,255,255,.62);}
.glass-card::before,.hero-panel::before,.saas-card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  /* background:linear-gradient(145deg,rgba(255,255,255,.45) 0%,transparent 42%); */
}

.eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;padding:8px 12px;
  border-left:4px solid var(--vnp-primary);
  background:rgba(255,255,255,.5);
  backdrop-filter:blur(12px);
  font-size:13px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--vnp-primary-deep);
}

/* Hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--vnp-line);}
.hero--bg{
  background:#e8f2fc url('../img/bg-hero.webp') center/cover no-repeat;
}
.hero--bg::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(105deg,rgba(255,255,255,.92) 0%,rgba(255,255,255,.78) 42%,rgba(232,242,252,.55) 68%,rgba(255,255,255,.35) 100%);
}
.hero-content{position:relative;z-index:2;min-height:min(88vh,760px);display:flex;align-items:center;padding:48px 0;}
.hero-panel{max-width:780px;padding:42px;z-index:1;}
.hero-title{font-size:clamp(36px,5vw,64px);line-height:1.2;font-weight:600;letter-spacing:-.03em;color:var(--vnp-text);}

.slogan-block{margin-top:1.25rem;}
.slogan-line{font-size:clamp(26px,4vw,38px);font-weight:600;line-height:1.25;letter-spacing:-.025em;margin:0;}
.slogan-line--dark{color:var(--vnp-text);}
.slogan-line--primary{color:var(--vnp-primary);}
.slogan-line--light{color:var(--vnp-primary-light);}

.metric{border-left:4px solid var(--vnp-primary);padding:16px 18px;}
.metric .text-2xl{white-space:nowrap;}

/* Sections + academic deco */
.section{padding:92px 0;position:relative;overflow:hidden;}
.section-alt{
  background:linear-gradient(180deg,rgba(232,242,252,.65),rgba(255,255,255,.9));
  border-top:1px solid var(--vnp-line);border-bottom:1px solid var(--vnp-line);
}
.section-deco::before{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(20,97,166,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,97,166,.06) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 92%);
}
.section-deco::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:min(42vw,360px);height:min(42vw,360px);
  background:url('../img/deco-books.svg') no-repeat right bottom/contain;
  opacity:.55;pointer-events:none;z-index:0;
}
.section-deco > .vnp-container,.subhero > .vnp-container{position:relative;z-index:1;}

.block-title{font-size:clamp(30px,4vw,48px);line-height:1.2;font-weight:600;letter-spacing:-.03em;color:var(--vnp-text);}
.block-subtitle{font-size:17px;color:var(--vnp-muted-soft);max-width:42rem;line-height:1.5;}

.pain-row{
  display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;
  padding:18px 20px;border-left:3px solid rgba(20,97,166,.45);
  border-bottom:1px solid var(--vnp-line);
}
.pain-row p{white-space:normal;}
.status-pill{
  font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  padding:7px 10px;background:var(--vnp-primary-pale);color:var(--vnp-primary-deep);
  border:1px solid rgba(20,97,166,.22);white-space:nowrap;
}

.feature-card{padding:26px;border-top:3px solid var(--vnp-primary);transition:.24s;}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 20px 50px rgba(20,97,166,.14),inset 0 1px 0 rgba(255,255,255,.9);}
.integration-card{padding:22px;border-left:3px solid var(--vnp-primary);}
.integration-icon{
  width:42px;height:42px;display:grid;place-items:center;
  background:var(--gradient-blue);color:#fff;margin-bottom:14px;
}
.icon-tile{
  width:46px;height:46px;display:grid;place-items:center;
  background:var(--gradient-blue);color:#fff;
}

.journal-shot{
  height:154px;
  background:linear-gradient(135deg,var(--vnp-primary-pale),#ffffff 55%,#dbeafe);
  border:1px solid var(--vnp-line);position:relative;overflow:hidden;
}
.journal-shot::before{content:"";position:absolute;inset:18px;border:1px solid var(--vnp-line);background:rgba(255,255,255,.5);}
.journal-shot::after{
  content:"";position:absolute;left:30px;right:30px;top:48px;height:16px;
  background:var(--gradient-blue-h);
  box-shadow:0 34px 0 rgba(20,97,166,.1),0 68px 0 rgba(59,143,217,.12);
}

/* Deployment pricing */
.pricing-card{padding:34px;display:flex;flex-direction:column;}
.pricing-card.glass-card::before{z-index:0;}
.pricing-card > *{position:relative;z-index:1;}
.pricing-card.featured{border:2px solid var(--vnp-primary);box-shadow:0 24px 60px rgba(20,97,166,.18),inset 0 1px 0 rgba(255,255,255,.85);}
.pricing-intro{font-size:17px;line-height:1.5;color:var(--vnp-text);font-weight:500;}
.price-band{
  margin:0 -34px 28px;padding:24px 34px;position:relative;z-index:2;
  background:linear-gradient(135deg,#0a3d6b 0%,#1461a6 52%,#0f4d85 100%);
  color:#fff;border-bottom:1px solid rgba(255,255,255,.12);
}
.price-band::before{display:none;}
.price-band-label{
  margin:0;font-size:15px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:#fff;opacity:1;text-shadow:0 1px 2px rgba(0,0,0,.25);
}
.price-band-amount{
  margin:10px 0 0;font-size:clamp(26px,3vw,34px);font-weight:600;line-height:1.2;
  color:#fff;white-space:nowrap;text-shadow:0 2px 4px rgba(0,0,0,.22);
  -webkit-font-smoothing:antialiased;
}
.pricing-plan-label{
  margin:0;font-size:15px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--vnp-primary-deep);
}
.pricing-plan-price{
  margin:10px 0 24px;font-size:clamp(26px,3vw,34px);font-weight:600;line-height:1.2;
  color:var(--vnp-text);white-space:nowrap;
}
.pricing-plan-desc{font-size:16px;line-height:1.5;color:var(--vnp-text);}
.price-amount{white-space:nowrap;}
.pricing-features li{display:flex;align-items:flex-start;gap:4px;}
.pricing-deploy-grid{align-items:stretch;}
.pricing-deploy-grid .pricing-card .btn-primary{margin-top:auto;}

/* SaaS pricing (monthly/yearly) */
.pricing-saas{margin-top:2rem;}
.pricing-billing-toggle{
  display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:nowrap;
}
.billing-label{font-weight:600;color:var(--vnp-muted-soft);white-space:nowrap;font-size:16px;}
.billing-save{color:var(--vnp-primary-light);font-weight:600;}
.billing-switch{
  width:52px;height:28px;border-radius:999px!important;
  background:rgba(20,97,166,.2);border:1px solid rgba(20,97,166,.35);
  position:relative;cursor:pointer;padding:0;flex-shrink:0;
}
.billing-switch-knob{
  position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%!important;
  background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.15);transition:transform .25s ease;
}
.pricing-saas.is-yearly .billing-switch-knob{transform:translateX(24px);}
.pricing-saas.is-yearly .billing-label[data-billing-label="yearly"]{color:var(--vnp-text);}
.pricing-saas:not(.is-yearly) .billing-label[data-billing-label="monthly"]{color:var(--vnp-text);}

.saas-card{
  padding:28px;border-radius:0;display:flex;flex-direction:column;
  background:rgba(255,255,255,.68)!important;
  border:1px solid rgba(20,97,166,.22)!important;
  color:var(--vnp-text);
}
.saas-card--featured{
  border:2px solid var(--vnp-primary)!important;
  box-shadow:0 20px 50px rgba(20,97,166,.16),inset 0 1px 0 rgba(255,255,255,.9)!important;
}
.saas-badge{
  position:absolute;top:16px;right:16px;
  font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;
  padding:6px 10px;background:var(--vnp-primary);color:#fff;
}
.saas-card-title{font-size:15px;font-weight:600;color:var(--vnp-primary-deep);text-transform:uppercase;letter-spacing:.04em;margin-bottom:12px;}
.saas-price{display:flex;align-items:baseline;gap:6px;margin-bottom:12px;flex-wrap:nowrap;}
.saas-price-value{font-size:clamp(28px,3vw,36px);font-weight:600;color:var(--vnp-text);white-space:nowrap;}
.saas-price-unit{font-size:16px;color:var(--vnp-muted-soft);white-space:nowrap;}
.saas-desc{color:var(--vnp-muted-soft)!important;margin-bottom:20px;font-size:16px;line-height:1.5;}
.saas-features{list-style:none;padding:0;margin:0 0 24px;display:grid;gap:10px;flex:1;}
.saas-features li{display:flex;align-items:flex-start;gap:10px;font-size:16px;color:var(--vnp-text);}
.saas-features i{color:var(--vnp-primary);margin-top:3px;flex-shrink:0;}
.btn-saas-outline,.btn-saas-solid{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 20px;font-weight:700;text-decoration:none;white-space:nowrap;font-size:16px;
}
.btn-saas-outline{
  border:1px solid rgba(20,97,166,.35);color:var(--vnp-primary-deep);
  background:rgba(255,255,255,.55);
}
.btn-saas-outline:hover{background:rgba(255,255,255,.85);}
.btn-saas-solid{background:var(--gradient-blue-h);color:#fff;border:1px solid var(--vnp-primary-deep);}
.btn-saas-solid:hover{transform:translateY(-1px);}

/* Pricing hub tabs (home) */
.pricing-hub-tabs{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px;}
.pricing-hub-tab{
  padding:12px 22px;font-weight:700;font-size:16px;
  border:1px solid rgba(20,97,166,.28);background:rgba(255,255,255,.55);
  color:var(--vnp-primary-deep);cursor:pointer;
}
.pricing-hub-tab.is-active,.pricing-hub-tab:hover{
  background:var(--gradient-blue-h);color:#fff;border-color:var(--vnp-primary-deep);
}
.pricing-hub-panel[hidden]{display:none!important;}

/* Journal cards */
.journal-card{overflow:hidden;display:flex;flex-direction:column;height:100%;}
.journal-cover-wrap{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--vnp-line);background:var(--vnp-primary-pale);}
.journal-cover{width:100%;height:100%;object-fit:cover;display:block;}
.journal-card-title{text-wrap:balance;}
.journal-card--more{text-decoration:none;color:inherit;transition:.24s;}
.journal-card--more:hover{transform:translateY(-4px);}
.journal-cover-wrap--more{
  position:relative;display:grid;place-items:center;text-align:center;
  background:linear-gradient(135deg,var(--vnp-primary-pale),#fff 55%,#dbeafe);
  min-height:180px;
}
.journal-more-label{
  font-size:clamp(22px,3vw,28px);font-weight:600;color:var(--vnp-primary-deep);
  text-transform:uppercase;letter-spacing:.04em;
}
.journal-more-sub{display:block;margin-top:8px;font-size:16px;color:var(--vnp-muted-soft);max-width:16rem;}

/* FAQ layout */
.faq-wrap{max-width:880px;}
.survey-faq-col .faq-wrap{margin-top:0;}
.faq-item summary{font-size:17px;line-height:1.4;}
.faq-item p{padding:0 24px 22px;color:var(--vnp-muted-soft);font-size:16px;line-height:1.5;}

/* Survey layout */
.survey-layout{grid-template-columns:1fr;}
@media(min-width:1024px){
  .survey-layout{grid-template-columns:.85fr 1.15fr;align-items:start;}
}
.survey-faq-block{margin-top:56px;padding-top:48px;border-top:1px solid var(--vnp-line);}
@media(min-width:1024px){
  .survey-faq-block{grid-column:1/-1;max-width:880px;}
}

.metric-value{font-size:1.5rem;font-weight:600;line-height:1.2;}

.step-line{position:relative;padding-left:58px;padding-bottom:34px;}
.step-line:before{content:"";position:absolute;left:21px;top:44px;bottom:0;width:2px;background:linear-gradient(var(--vnp-primary),rgba(59,143,217,.2));}
.step-no{
  position:absolute;left:0;top:0;width:44px;height:44px;display:grid;place-items:center;
  background:rgba(255,255,255,.7);border:2px solid var(--vnp-primary);color:var(--vnp-primary);font-weight:700;
}

.input{
  width:100%;border:1px solid var(--vnp-line);
  background:rgba(255,255,255,.65);backdrop-filter:blur(8px);
  padding:14px 15px;outline:none;transition:.2s;color:var(--vnp-text);
}
.input:focus{border-color:var(--vnp-primary);box-shadow:0 0 0 4px rgba(20,97,166,.12);}

.footer{background:rgba(255,255,255,.75);backdrop-filter:blur(16px);border-top:1px solid var(--vnp-line);}
.subhero{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,var(--vnp-primary-pale) 0%,#ffffff 55%,#e8f2fc 100%);
  border-bottom:1px solid var(--vnp-line);padding:96px 0 82px;
}
.subhero:before{
  content:"";position:absolute;right:-120px;top:-160px;width:460px;height:460px;
  background:radial-gradient(circle,rgba(59,143,217,.2),transparent 68%);
}

.faq-item summary{cursor:pointer;padding:20px 24px;font-weight:600;color:var(--vnp-text);list-style:none;display:flex;justify-content:space-between;gap:16px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:after{content:"+";color:var(--vnp-primary);font-size:24px;flex-shrink:0;}
.faq-item[open] summary:after{content:"−";}
.certificate-frame{border:1px solid var(--vnp-line);background:rgba(255,255,255,.7);padding:16px;backdrop-filter:blur(12px);}
.certificate-image{width:100%;height:auto;display:block;}
.certificate-placeholder{min-height:320px;display:grid;place-items:center;text-align:center;padding:32px;}

/* Turnitin card */
.turnitin-card{
  position:relative;overflow:hidden;
  padding:clamp(24px,4vw,40px) clamp(24px,4vw,40px) clamp(24px,4vw,40px) clamp(28px,4vw,44px);
  border:1px solid rgba(1,145,151,.22);
  background:linear-gradient(145deg,rgba(255,255,255,.92),rgba(232,248,248,.78));
  box-shadow:0 20px 50px rgba(20,97,166,.1),inset 0 1px 0 rgba(255,255,255,.95);
}
.turnitin-card.glass-card::before{opacity:.35;}
.turnitin-card-head{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-bottom:22px;padding-bottom:20px;border-bottom:1px solid rgba(20,97,166,.12);
}
.turnitin-brand{
  display:flex;align-items:center;padding:10px 16px;
  background:#fff;border:1px solid rgba(1,145,151,.18);
  box-shadow:0 4px 16px rgba(1,145,151,.08);
}
.turnitin-logo{display:block;width:min(168px,42vw);height:auto;}
.turnitin-tag{
  font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  padding:8px 14px;background:rgba(1,145,151,.1);color:#017a7f;
  border:1px solid rgba(1,145,151,.25);
}
.turnitin-card-title{
  font-size:clamp(24px,3.2vw,30px);font-weight:600;color:var(--vnp-text);
  margin:0 0 14px;text-wrap:balance;line-height:1.2;
}
.turnitin-card-lead{
  font-size:17px;line-height:1.55;color:var(--vnp-text);margin:0 0 24px;max-width:52rem;
}
.turnitin-card-lead strong{color:var(--vnp-primary-deep);font-weight:600;}
.turnitin-benefits{
  list-style:none;padding:0;margin:0;display:grid;gap:14px;
  grid-template-columns:1fr;
}
@media(min-width:768px){
  .turnitin-benefits{grid-template-columns:repeat(2,1fr);gap:16px 24px;}
}
.turnitin-benefits li{
  display:flex;align-items:flex-start;gap:12px;font-size:16px;line-height:1.45;color:var(--vnp-text);
}
.turnitin-check{
  width:26px;height:26px;flex-shrink:0;display:grid;place-items:center;
  background:rgba(1,145,151,.12);color:#019197;border:1px solid rgba(1,145,151,.25);
}
.turnitin-check i{font-size:12px;}
.turnitin-pr-box{border:1px solid rgba(20,97,166,.15);}
.turnitin-pr-lead{font-size:16px;line-height:1.55;color:var(--vnp-text);}
.turnitin-pr-list{
  list-style:none;padding:0;margin:0;
  display:grid;gap:12px;
}
.turnitin-pr-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;line-height:1.45;color:var(--vnp-text);
}
.turnitin-pr-list i{color:var(--vnp-primary);margin-top:3px;}
.turnitin-step{position:relative;overflow:hidden;}
.turnitin-step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;
  font-size:14px;font-weight:700;color:#fff;
  background:var(--gradient-blue-h);
}

/* Screenshots */
.screenshots-section{margin-top:0;}
.screenshots-intro{margin-bottom:32px;}
.screenshot-grid{
  display:grid;gap:24px;
  grid-template-columns:1fr;
}
@media(min-width:768px){
  .screenshot-grid{grid-template-columns:repeat(2,1fr);}
}
.screenshot-grid--compact .screenshot-card:last-child{
  grid-column:1/-1;
}
@media(min-width:900px){
  .screenshot-grid--compact{grid-template-columns:repeat(2,1fr);}
  .screenshot-grid--compact .screenshot-card:last-child{grid-column:auto;}
}
.screenshot-card{overflow:hidden;display:flex;flex-direction:column;height:100%;}
.screenshot-frame{
  border-bottom:1px solid var(--vnp-line);background:var(--vnp-primary-pale);
  overflow:hidden;aspect-ratio:16/10;
}
.screenshot-image{width:100%;height:100%;object-fit:cover;object-position:top left;display:block;transition:transform .35s ease;}
.screenshot-card:hover .screenshot-image{transform:scale(1.02);}
.screenshot-caption{padding:20px 22px 22px;}
.screenshot-title{font-size:18px;font-weight:600;color:var(--vnp-text);margin:0 0 8px;text-wrap:balance;}
.screenshots-cta{margin-top:32px;display:flex;justify-content:center;}

/* Coverflow screenshot slider */
.coverflow{position:relative;margin-top:12px;overflow:hidden;padding-bottom:8px;}
.coverflow-toolbar{
  display:flex;justify-content:center;gap:12px;margin-bottom:20px;
}
.coverflow-nav{
  width:48px;height:48px;display:grid;place-items:center;
  border:1px solid rgba(20,97,166,.28);background:rgba(255,255,255,.9);
  color:var(--vnp-primary-deep);cursor:pointer;font-size:17px;
  box-shadow:0 8px 24px rgba(20,97,166,.1);
  transition:transform .2s,background .2s,border-color .2s,box-shadow .2s;
}
.coverflow-nav:hover{
  background:#fff;border-color:var(--vnp-primary);
  transform:translateY(-2px);box-shadow:0 12px 28px rgba(20,97,166,.16);
}
.coverflow-viewport{
  position:relative;overflow:visible;
  height:clamp(280px,38vw,440px);
  perspective:1600px;
  perspective-origin:50% 50%;
}
.coverflow-track{
  position:relative;width:min(760px,92vw);height:100%;margin:0 auto;
  transform-style:preserve-3d;
}
.coverflow-slide{
  position:absolute;left:50%;top:50%;
  width:min(720px,88vw);
  transition:transform .65s cubic-bezier(.25,.8,.25,1),opacity .65s,filter .65s,z-index 0s;
  transform-style:preserve-3d;will-change:transform,opacity;
  pointer-events:none;opacity:0;filter:blur(1px);z-index:1;
  transform:translate(-50%,-50%) scale(0.5) translateZ(-300px);
}
.coverflow-slide.is-visible{cursor:pointer;}
.coverflow-slide.is-active{
  cursor:default;z-index:30!important;
  pointer-events:auto;
}
.coverflow-slide.is-left,
.coverflow-slide.is-right{z-index:15!important;}
.coverflow-card{
  width:100%;margin:0;overflow:hidden;
  border:1px solid rgba(20,97,166,.2);
  box-shadow:0 28px 64px rgba(15,45,75,.18);
  transition:box-shadow .65s;
  backface-visibility:hidden;
}
.coverflow-slide.is-active .coverflow-card{
  box-shadow:0 40px 90px rgba(20,97,166,.32);
  border-color:rgba(20,97,166,.35);
}
.coverflow-slide.is-left .coverflow-card,
.coverflow-slide.is-right .coverflow-card{
  box-shadow:0 16px 40px rgba(15,45,75,.12);
}
.coverflow-frame{aspect-ratio:16/10;overflow:hidden;background:var(--vnp-primary-pale);}
.coverflow-image{
  width:100%;height:100%;object-fit:cover;object-position:top left;display:block;
}
.coverflow-meta{
  margin-top:28px;padding:22px 26px;text-align:center;max-width:720px;margin-left:auto;margin-right:auto;
  transition:opacity .3s ease;
}
.coverflow-meta.is-changing{opacity:.55;}
.coverflow-meta-title{
  font-size:20px;font-weight:600;color:var(--vnp-text);margin:0 0 8px;text-wrap:balance;
  transition:opacity .25s ease;
}
.coverflow-meta-caption{font-size:16px;line-height:1.5;color:var(--vnp-text);margin:0;transition:opacity .25s ease;}
.coverflow-dots{
  display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:20px;
}
.coverflow-dot{
  width:10px;height:10px;padding:0;border-radius:50%!important;
  border:1px solid rgba(20,97,166,.35);background:rgba(255,255,255,.85);cursor:pointer;
  transition:transform .25s,background .25s,width .25s;
}
.coverflow-dot.is-active{
  width:28px;background:var(--vnp-primary);border-color:var(--vnp-primary-deep);
}
@media(max-width:640px){
  .coverflow-viewport{height:clamp(220px,56vw,300px);perspective:1000px;}
  .coverflow-toolbar{justify-content:space-between;padding:0 4px;}
}

/* Survey form */
.survey-honeypot{
  position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;opacity:0;pointer-events:none;
}
.survey-alert{
  padding:14px 18px;font-size:16px;line-height:1.45;font-weight:600;border:1px solid transparent;
}
.survey-alert--success{
  background:rgba(1,145,151,.1);border-color:rgba(1,145,151,.35);color:#0f4d85;
}
.survey-alert--error{
  background:rgba(193,18,31,.08);border-color:rgba(193,18,31,.28);color:#8f1218;
}

.integration-card--featured{
  box-shadow:0 16px 40px rgba(20,97,166,.12),inset 0 1px 0 rgba(255,255,255,.9);
}
.integration-card--featured .integration-icon{background:var(--gradient-blue-h);}
.cert-meta-row dt{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--vnp-muted-soft);}
.cert-meta-row dd{font-weight:700;color:var(--vnp-text);margin-top:4px;}
.border-line{border-color:var(--vnp-line)!important;}
.border-primary-200{border-color:rgba(20,97,166,.25)!important;}

/* Nav drawer (mobile / tablet) */
.nav-drawer-backdrop{
  position:fixed;inset:0;z-index:60;
  background:rgba(15,23,42,.45);
  opacity:0;visibility:hidden;
  transition:opacity .28s ease,visibility .28s;
  border:0;padding:0;cursor:pointer;
}
.nav-drawer-backdrop.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;z-index:61;
  width:min(100%,360px);height:100%;
  max-height:100dvh;
  display:flex;flex-direction:column;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(24px) saturate(1.3);
  -webkit-backdrop-filter:blur(24px) saturate(1.3);
  border-left:1px solid var(--vnp-line);
  box-shadow:-12px 0 48px rgba(20,97,166,.14);
  transform:translateX(100%);
  transition:transform .32s cubic-bezier(.4,0,.2,1);
  overflow:hidden;
}
.nav-drawer.is-open{transform:translateX(0);}
.nav-drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:20px 20px 16px;
  border-bottom:1px solid var(--vnp-line);
}
.site-logo--drawer{font-size:18px;}
.nav-drawer-close{
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--vnp-line);background:#fff;
  color:var(--vnp-primary);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;transition:.2s;
}
.nav-drawer-close:hover{background:var(--vnp-bg-gray);}
.nav-drawer-body{
  flex:1;overflow-y:auto;padding:12px 16px;
  display:flex;flex-direction:column;gap:4px;
}
.nav-drawer-link{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 16px;border-radius:12px;
  font-size:15px;font-weight:700;color:var(--vnp-text);
  text-decoration:none;transition:.2s;
}
.nav-drawer-link i{font-size:12px;color:var(--vnp-muted-soft);transition:.2s;}
.nav-drawer-link:hover,.nav-drawer-link.active{
  background:rgba(20,97,166,.08);color:var(--vnp-primary);
}
.nav-drawer-link:hover i,.nav-drawer-link.active i{color:var(--vnp-primary);}
.nav-drawer-foot{
  padding:16px 20px calc(20px + env(safe-area-inset-bottom,0px));
  border-top:1px solid var(--vnp-line);
  background:linear-gradient(180deg,rgba(248,250,252,0) 0%,rgba(232,242,252,.5) 100%);
}
.nav-drawer-note{
  font-size:14px;line-height:1.5;color:var(--vnp-muted);
  margin-bottom:14px;
}
body.nav-locked,body.assistant-locked{overflow:hidden;}

/* Assistant FAB + modal */
.assistant-root{position:relative;z-index:90;pointer-events:none;}
.assistant-root .assistant-fab,.assistant-root .assistant-modal{pointer-events:auto;}
.assistant-fab{
  position:fixed;right:max(16px,env(safe-area-inset-right,0px));
  bottom:max(20px,env(safe-area-inset-bottom,0px));
  z-index:91;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 20px 14px 16px;border-radius:999px;
  border:1px solid var(--vnp-primary-deep);
  background:var(--gradient-blue-h);color:#fff;
  font-weight:700;font-size:14px;letter-spacing:.02em;
  box-shadow:0 14px 40px rgba(20,97,166,.35),inset 0 1px 0 rgba(255,255,255,.25);
  cursor:pointer;transition:transform .2s,box-shadow .2s;
}
.assistant-fab:hover{transform:translateY(-2px);box-shadow:0 18px 48px rgba(20,97,166,.4);}
.assistant-fab[aria-expanded="true"]{
  background:#fff;color:var(--vnp-primary);
  border-color:var(--vnp-line);
  box-shadow:0 8px 28px rgba(20,97,166,.18);
}
.assistant-fab-pulse{
  position:absolute;inset:-4px;border-radius:999px;
  border:2px solid rgba(20,97,166,.35);
  animation:assistant-pulse 2.4s ease-out infinite;
  pointer-events:none;
}
.assistant-fab[aria-expanded="true"] .assistant-fab-pulse{display:none;}
@keyframes assistant-pulse{
  0%{transform:scale(1);opacity:.8;}
  100%{transform:scale(1.2);opacity:0;}
}
.assistant-fab-icon{font-size:18px;transition:opacity .2s,transform .2s;}
.assistant-fab-icon--close{
  position:absolute;left:16px;opacity:0;transform:rotate(-90deg);
}
.assistant-fab[aria-expanded="true"] .assistant-fab-icon--open{opacity:0;}
.assistant-fab[aria-expanded="true"] .assistant-fab-icon--close{
  opacity:1;transform:none;position:static;
}
.assistant-fab-label{white-space:nowrap;}
.assistant-modal{
  position:fixed;inset:0;z-index:92;
  display:flex;align-items:flex-end;justify-content:center;
  padding:16px;padding-bottom:max(88px,calc(16px + env(safe-area-inset-bottom,0px)));
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .25s ease,visibility .25s;
}
.assistant-modal[hidden]{display:none!important;}
.assistant-modal.is-open{
  display:flex!important;
  opacity:1;visibility:visible;pointer-events:auto;
}
.assistant-modal-backdrop{
  position:absolute;inset:0;border:0;padding:0;margin:0;
  background:rgba(15,23,42,.4);cursor:pointer;
}
.assistant-sheet{
  position:relative;z-index:1;width:min(100%,420px);
  max-height:min(82vh,640px);overflow:hidden;
  display:flex;flex-direction:column;
  border-radius:20px;padding:0;
  transform:translateY(24px) scale(.98);
  transition:transform .28s cubic-bezier(.4,0,.2,1);
  box-shadow:0 24px 64px rgba(20,97,166,.2);
}
.assistant-modal.is-open .assistant-sheet{
  transform:translateY(0) scale(1);
}
.assistant-head{
  display:flex;align-items:flex-start;justify-content:space-between;gap:12px;
  padding:22px 22px 12px;border-bottom:1px solid var(--vnp-line);
}
.assistant-eyebrow{
  font-size:11px;font-weight:600;text-transform:uppercase;
  letter-spacing:.1em;color:var(--vnp-primary);margin-bottom:6px;
}
.assistant-title{
  font-size:22px;font-weight:600;color:var(--vnp-text);
  line-height:1.25;margin:0 0 8px;
}
.assistant-subtitle{
  font-size:14px;line-height:1.5;color:var(--vnp-muted);margin:0;
}
.assistant-close{
  flex-shrink:0;width:36px;height:36px;border-radius:10px;
  border:1px solid var(--vnp-line);background:#fff;
  color:var(--vnp-muted);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.assistant-close:hover{color:var(--vnp-primary);}
.assistant-actions{
  padding:12px 16px 8px;overflow-y:auto;
  display:flex;flex-direction:column;gap:8px;
}
.assistant-action{
  display:flex;align-items:center;gap:14px;
  padding:14px 16px;border-radius:14px;
  border:1px solid var(--vnp-line);background:rgba(255,255,255,.7);
  text-decoration:none;color:var(--vnp-text);
  transition:background .2s,border-color .2s,transform .2s;
}
.assistant-action:hover{
  background:#133b66;border-color:rgba(20,97,166,.3);
  transform:translateX(2px);
}
.assistant-action--primary{
  background:var(--gradient-blue-h);border-color:var(--vnp-primary-deep);
  color:#fff;box-shadow:0 8px 24px rgba(20,97,166,.22);
}
.assistant-action--primary:hover{
  color:#fff;border-color:var(--vnp-primary-deep);
  box-shadow:0 12px 32px rgba(20,97,166,.3);
}
.assistant-action--primary .assistant-action-desc{color:rgba(255,255,255,.85);}
.assistant-action--primary .assistant-action-icon{
  background:rgba(255,255,255,.2);color:#fff;
}
.assistant-action-icon{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(20,97,166,.1);color:var(--vnp-primary);font-size:17px;
}
.assistant-action-text{flex:1;min-width:0;}
.assistant-action-label{display:block;font-size:15px;font-weight:600;line-height:1.3;}
.assistant-action-desc{display:block;font-size:13px;color:var(--vnp-muted);margin-top:2px;line-height:1.4;}
.assistant-action-arrow{font-size:12px;color:var(--vnp-muted-soft);flex-shrink:0;}
.assistant-action--primary .assistant-action-arrow{color:rgba(255,255,255,.8);}
.assistant-foot{
  padding:12px 20px 18px;font-size:12px;color:var(--vnp-muted-soft);
  text-align:center;border-top:1px solid var(--vnp-line);
  display:flex;align-items:center;justify-content:center;gap:8px;
}

@media(max-width:1100px){
  .nav-main,.btn-nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  main{padding-bottom:24px;}
}
@media(min-width:601px){
  .assistant-modal{align-items:center;padding-bottom:24px;}
  .assistant-sheet{max-height:min(78vh,600px);}
}
@media(max-width:600px){
  .assistant-fab{padding:14px;border-radius:50%;width:56px;height:56px;justify-content:center;}
  .assistant-fab-label{display:none;}
  .assistant-fab-icon--close{left:50%;transform:translateX(-50%) rotate(-90deg);}
  .assistant-fab[aria-expanded="true"] .assistant-fab-icon--close{transform:translateX(-50%);}
}
@media(max-width:900px){
  .hero-content{min-height:640px}
  .hero-panel{padding:28px}
  .section{padding:68px 0}
  .pain-row{grid-template-columns:1fr}
  .status-pill{width:max-content}
  .vnp-container{padding:0 18px}
  .slogan-line{font-size:clamp(22px,6.5vw,32px)}
  .saas-price-value{font-size:26px}
}