:root{
  --navy:#0A1D37;
  --navy2:#071426;
  --blue:#1E6FB6;
  --blue2:#2D8FE3;
  --gray:#6B7280;
  --light:#F7F9FC;
  --white:#FFFFFF;
  --line:rgba(10,29,55,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Montserrat,system-ui,sans-serif;color:var(--navy);background:#fff;line-height:1.6}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit}
.site-header{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:15px clamp(20px,5vw,76px);
  background:rgba(255,255,255,.94);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line)
}
.brand{display:flex;align-items:center;gap:12px}
.helix-logo-mark{width:42px;height:42px;object-fit:contain;display:block}
.brand-name{font-weight:800;letter-spacing:.20em;font-size:1rem}
.helix-mark{position:relative;width:42px;height:42px;display:block}
.strand{position:absolute;left:10px;width:22px;height:38px;border:4px solid transparent;border-radius:50%}
.strand-a{border-left-color:var(--blue);transform:rotate(20deg)}
.strand-b{border-right-color:#8A95A4;transform:rotate(-20deg)}
.bar{position:absolute;left:12px;width:18px;height:3px;background:var(--navy);border-radius:10px}
.bar-1{top:11px}.bar-2{top:20px}.bar-3{top:29px}
.nav{display:flex;align-items:center;gap:28px;font-size:.86rem;font-weight:600}
.nav a:not(.button):hover{color:var(--blue)}
.menu-toggle{display:none;border:0;background:transparent;font-weight:700}
.button{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 22px;border:0;border-radius:7px;
  color:#fff;background:var(--blue);font-weight:700;
  box-shadow:0 12px 30px rgba(30,111,182,.22);cursor:pointer
}
.button:hover{background:var(--blue2);transform:translateY(-1px)}
.button-small{padding:10px 16px}
.hero{
  min-height:760px;
  display:grid;grid-template-columns:1.08fr .92fr;gap:60px;align-items:center;
  padding:92px clamp(20px,7vw,110px);
  color:#fff;
  background:
    radial-gradient(circle at 80% 24%,rgba(45,143,227,.34),transparent 28%),
    linear-gradient(135deg,var(--navy2),var(--navy))
}
.eyebrow{
  margin:0 0 12px;color:var(--blue2);
  font-size:.75rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase
}
.hero h1{
  margin:0;font-size:clamp(3.4rem,7.5vw,7rem);
  line-height:.95;letter-spacing:-.055em
}
.hero h1 span{color:var(--blue2)}
.hero-lead{max-width:700px;margin:28px 0;color:#d3deea;font-size:1.08rem}
.hero-actions{display:flex;align-items:center;gap:26px}
.secondary-link{font-weight:700}
.secondary-link span{color:var(--blue2)}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px}
.hero-points span{
  border:1px solid rgba(255,255,255,.16);
  color:#d8e3ed;padding:8px 12px;border-radius:999px;font-size:.78rem
}
.hero-visual{display:flex;justify-content:center}
.dashboard{
  width:min(520px,100%);aspect-ratio:4/3;padding:30px;
  border:10px solid #10151d;border-radius:24px;
  background:linear-gradient(155deg,#0D2748,#14345A 55%,#1A4A79);
  box-shadow:0 38px 90px rgba(0,0,0,.42)
}
.dashboard-top{display:flex;justify-content:space-between;font-size:.72rem;font-weight:800;letter-spacing:.12em}
.online{color:#67C7FF}
.dashboard-main{margin-top:56px}
.dashboard-main p{margin:0;color:#A8BCD0}
.dashboard-main h2{margin:5px 0 0;font-size:clamp(2.2rem,4vw,3.8rem);line-height:1.04}
.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:48px}
.status-grid div{padding:14px 8px;border-radius:9px;text-align:center;background:rgba(255,255,255,.08)}
.status-grid strong,.status-grid span{display:block}
.status-grid strong{font-size:.8rem}.status-grid span{font-size:.62rem;color:#BCD0E0}
.promise-bar{
  display:flex;justify-content:center;align-items:center;gap:22px;
  padding:18px;background:var(--blue);color:#fff;
  font-size:.76rem;font-weight:800;letter-spacing:.14em
}
.promise-bar i{width:42px;height:1px;background:rgba(255,255,255,.45)}
.section{padding:100px clamp(20px,7vw,110px)}
.section-heading{max-width:820px;margin-bottom:48px}
.section-heading h2,.about h2,.support h2,.quote-copy h2{
  margin:0 0 16px;font-size:clamp(2.2rem,4.6vw,4.25rem);
  line-height:1.05;letter-spacing:-.045em
}
.section-heading>p:last-child,.support>div>p:last-child,.quote-copy>p:last-child{color:var(--gray)}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.service-card{
  padding:30px;background:#fff;border:1px solid var(--line);
  border-radius:15px;box-shadow:0 10px 30px rgba(10,29,55,.05)
}
.service-card:hover{transform:translateY(-4px);box-shadow:0 22px 46px rgba(10,29,55,.12)}
.service-icon{
  width:48px;height:48px;display:grid;place-items:center;
  border-radius:10px;background:#EEF7FF;color:var(--blue);
  font-weight:800;font-size:.85rem
}
.service-card h3{margin:20px 0 9px}
.service-card p{margin:0;color:var(--gray);font-size:.92rem}
.section-alt{background:var(--light)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.steps article{padding:28px;background:#fff;border-top:3px solid var(--blue)}
.steps span{color:var(--blue);font-weight:800}
.steps p{color:var(--gray);font-size:.9rem}
.about{display:grid;grid-template-columns:1.1fr .9fr;gap:40px}
.about-panel,.standard-card{padding:56px;border-radius:18px}
.about-panel{background:var(--navy);color:#fff}
.about-panel>p{color:#C8D4DF}
.value-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.value-pills span{padding:8px 12px;border:1px solid rgba(255,255,255,.18);border-radius:999px;font-size:.78rem}
.standard-card{
  display:flex;flex-direction:column;justify-content:center;
  background:linear-gradient(135deg,#EEF7FF,#DBEEFF)
}
.standard-card blockquote{
  margin:0;font-size:clamp(1.6rem,3vw,2.8rem);
  line-height:1.25;font-weight:700;letter-spacing:-.03em
}
.standard-card p{color:var(--blue);font-weight:800}
.support{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.support-card{padding:34px;border-radius:16px;background:var(--light);border:1px solid var(--line)}
.support-card p{color:var(--gray)}
.quote-section{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;
  background:#F4F7FB
}
.quote-form{
  padding:32px;background:#fff;border:1px solid var(--line);
  border-radius:16px;box-shadow:0 24px 58px rgba(10,29,55,.12)
}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:block;margin-bottom:16px;font-size:.8rem;font-weight:700}
input,select,textarea{
  width:100%;margin-top:7px;padding:13px 14px;
  border:1px solid #CCD5DF;border-radius:7px;color:var(--navy);background:#fff
}
.form-message{margin-top:15px;padding:12px;background:#EEF7FF;border-radius:8px;color:var(--blue);font-size:.83rem}
footer{
  display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:36px;
  padding:56px clamp(20px,7vw,110px) 28px;
  background:var(--navy2);color:#D2DCEA
}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand strong{color:#fff;letter-spacing:.18em}
.footer-brand p{margin:3px 0 0;font-size:.78rem}
footer>div>strong{color:#fff;font-size:.84rem}
footer p{font-size:.84rem}
footer small{grid-column:1/-1;padding-top:22px;border-top:1px solid rgba(255,255,255,.12)}
.footer-logo-mark{width:46px;height:46px}
@media(max-width:900px){
  .menu-toggle{display:block}
  .nav{
    display:none;position:absolute;left:0;right:0;top:72px;
    flex-direction:column;align-items:stretch;padding:22px;
    background:#fff;border-bottom:1px solid var(--line)
  }
  .nav.open{display:flex}
  .hero,.about,.support,.quote-section{grid-template-columns:1fr}
  .hero{min-height:auto;padding-top:70px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  footer{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
  .hero-actions{flex-direction:column;align-items:flex-start}
  .status-grid{grid-template-columns:repeat(2,1fr)}
  .service-grid,.steps,.row,footer{grid-template-columns:1fr}
  .promise-bar{gap:10px;font-size:.62rem}
  .promise-bar i{width:18px}
  .about-panel,.standard-card,.quote-form{padding:28px}
}