/* ===================== VARIABLES ===================== */
:root{
  --navy-deep:   #060607;
  --navy-mid:    #111214;
  --panel:       #16181b;
  --line:        rgba(230,233,237,.09);
  --line-strong: rgba(230,233,237,.18);
  --ink:         #f2f3f5;
  --slate:       #9297a1;
  --slate-faint: #5c6067;
  --teal:        #2fd0d9;
  --teal-bright: #5ee8ee;

  --font-display: "Manrope", system-ui, sans-serif;
  --font-body:    "IBM Plex Sans", system-ui, sans-serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, "SF Mono", monospace;

  --wrap: 1080px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }

body{
  margin:0;
  background:var(--navy-deep);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:15.5px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

a{ color:inherit; }

.sr-only{
  position:absolute; width:1px; height:1px; overflow:hidden;
  clip:rect(0,0,0,0); white-space:nowrap;
}

/* ===================== ATMOSPHERE ===================== */
.sky-bg{
  position:fixed; inset:0; z-index:0; pointer-events:none; overflow:hidden;
  background:var(--navy-deep);
}
.sky-glow{
  position:absolute; top:-18%; left:50%; width:1000px; height:800px;
  transform:translateX(-50%);
  background:radial-gradient(ellipse at center, rgba(47,208,217,.12) 0%, rgba(47,208,217,0) 68%);
}

.grain{
  position:fixed; inset:0; z-index:1; pointer-events:none; opacity:.035; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ===================== TOPBAR ===================== */
.topbar{
  position:relative; z-index:5;
  display:flex; align-items:center; justify-content:space-between;
  max-width:var(--wrap); margin:0 auto;
  padding:28px 24px 0;
}

.brand{ display:flex; align-items:center; gap:11px; }

.helix-mark{ width:34px; height:34px; object-fit:contain; display:block; }

.brand-word{
  font-family:var(--font-display);
  font-weight:800;
  font-size:17px;
  letter-spacing:.1em;
}

.switcher{
  display:flex; gap:2px;
  border:1px solid var(--line-strong);
  padding:3px; border-radius:8px;
  background:rgba(8,13,20,.4);
}

.switch-btn{
  font-family:var(--font-body);
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--slate);
  background:transparent;
  border:none;
  padding:8px 18px;
  cursor:pointer;
  border-radius:6px;
  transition:background .25s ease, color .25s ease;
}
.switch-btn:hover{ color:var(--ink); }
.switch-btn.active{
  background:var(--teal);
  color:#04191b;
}
.switch-btn:focus-visible{ outline:2px solid var(--teal-bright); outline-offset:2px; }

/* ===================== LAYOUT / VIEWS ===================== */
main{
  position:relative; z-index:2;
  max-width:var(--wrap); margin:0 auto;
  padding:0 24px;
}

.view{ display:none; }
.view.active{ display:block; animation:view-in .55s ease both; }
@keyframes view-in{
  from{ opacity:0; transform:translateY(10px); }
  to{ opacity:1; transform:translateY(0); }
}

/* ===================== HERO ===================== */
.hero{
  padding:100px 0 60px;
  max-width:740px;
}

[data-reveal]{
  opacity:0;
  animation:reveal .7s cubic-bezier(.2,.7,.3,1) forwards;
}
[data-reveal="1"]{ animation-delay:.05s; }
[data-reveal="2"]{ animation-delay:.15s; }
[data-reveal="3"]{ animation-delay:.28s; }
[data-reveal="4"]{ animation-delay:.4s; }
[data-reveal="5"]{ animation-delay:.5s; }
[data-reveal="6"]{ animation-delay:.6s; }
[data-reveal="7"]{ animation-delay:.7s; }
@keyframes reveal{
  from{ opacity:0; transform:translateY(14px); }
  to{ opacity:1; transform:translateY(0); }
}

.eyebrow{
  display:flex; align-items:center; gap:10px;
  font-size:12px; font-weight:600; letter-spacing:.12em;
  color:var(--teal-bright);
  margin-bottom:24px;
}
.stripe-dot{
  width:7px; height:7px; border-radius:50%;
  background:var(--teal);
  box-shadow:0 0 0 3px rgba(47,208,217,.2);
}

h1.giant{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(46px, 8vw, 88px);
  line-height:.98;
  letter-spacing:-.01em;
  margin:0 0 24px;
  text-wrap:balance;
}
h1.giant .reg{
  display:block;
  font-family:var(--font-body);
  font-weight:500;
  font-size:16px;
  letter-spacing:.14em;
  color:var(--slate);
  text-transform:uppercase;
  margin-top:12px;
}
h1.giant .amp{ color:var(--teal-bright); padding:0 .12em; }

.lede{
  font-size:17.5px; line-height:1.7;
  color:var(--slate);
  max-width:560px;
  margin:0 0 36px;
}

/* coming soon badge */
.stamp{
  display:inline-block;
  padding:10px 22px;
  border:1px solid var(--teal);
  border-radius:999px;
  margin-bottom:40px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:12.5px;
  letter-spacing:.16em;
  color:var(--teal-bright);
  background:rgba(47,208,217,.08);
}

/* notify form */
.notify-form{
  display:flex; gap:0; max-width:440px;
  border:1px solid var(--line-strong);
  border-radius:9px;
  overflow:hidden;
  background:var(--panel);
}
.notify-form input{
  flex:1; min-width:0;
  background:transparent;
  border:none;
  padding:15px 18px;
  color:var(--ink);
  font-family:var(--font-body);
  font-size:14.5px;
}
.notify-form input::placeholder{ color:var(--slate-faint); }
.notify-form input:focus{ outline:none; }
.notify-form button{
  display:flex; align-items:center; gap:8px;
  background:var(--teal);
  color:#04191b;
  border:none;
  padding:0 20px;
  font-family:var(--font-body);
  font-weight:700;
  font-size:12.5px;
  letter-spacing:.06em;
  cursor:pointer;
  white-space:nowrap;
  transition:background .2s ease;
}
.notify-form button svg{ width:15px; height:15px; }
.notify-form button:hover{ background:var(--teal-bright); }
.notify-form.sent button{ background:var(--slate); pointer-events:none; }

.form-note{
  font-size:13px; color:var(--slate-faint);
  margin:14px 0 0;
}

/* readout strip */
.readout-strip{
  display:grid; grid-template-columns:repeat(3, 1fr);
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  margin-bottom:84px;
}
.readout{
  padding:22px 4px;
  border-right:1px solid var(--line);
}
.readout:last-child{ border-right:none; }
.readout .k{
  display:block; font-size:11px; letter-spacing:.12em; color:var(--slate-faint); margin-bottom:8px;
  text-transform:uppercase;
}
.readout .v{
  display:block; font-size:14px; color:var(--ink); font-weight:500;
}

/* services grid */
.services-grid{
  display:grid; grid-template-columns:repeat(4, 1fr); gap:1px;
  background:var(--line);
  margin-bottom:96px;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
}
.svc{
  background:var(--navy-mid);
  padding:28px 22px 32px;
  position:relative;
}
.svc .idx{
  font-family:var(--font-display);
  font-size:11.5px; color:var(--slate-faint); letter-spacing:.08em;
  position:absolute; top:22px; right:22px;
}
.svc .icon{ width:28px; height:28px; color:var(--teal-bright); margin-bottom:18px; }
.svc h3{
  font-family:var(--font-display);
  font-size:14.5px; font-weight:700; letter-spacing:.01em;
  margin:0 0 8px;
}
.svc p{ font-size:13px; color:var(--slate); margin:0; line-height:1.6; }

/* app cards */
.app-cards{
  display:grid; grid-template-columns:1fr 1fr; gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  margin-bottom:52px;
}
.app-card{ background:var(--navy-mid); padding:32px 28px; }
.app-card .idx{
  display:inline-block;
  font-family:var(--font-display); font-size:11.5px; color:var(--teal-bright);
  border:1px solid var(--line-strong); border-radius:6px; padding:4px 9px; margin-bottom:18px;
  letter-spacing:.06em;
}
.app-card h3{
  font-family:var(--font-display); font-size:18px; font-weight:700;
  margin:0 0 12px;
}
.app-card p{ font-size:13.5px; color:var(--slate); line-height:1.7; margin:0; }

/* app mock */
.app-mock{
  max-width:520px;
  border:1px solid var(--line-strong);
  border-radius:12px;
  background:var(--panel);
  margin-bottom:60px;
  overflow:hidden;
}
.mock-bar{
  display:flex; justify-content:space-between; align-items:center;
  padding:16px 20px; border-bottom:1px solid var(--line);
  font-size:12.5px; letter-spacing:.04em; color:var(--slate);
  font-weight:600;
}
.mock-tag{ color:var(--teal-bright); font-family:var(--font-mono); }
.mock-row{
  display:flex; justify-content:space-between; align-items:center;
  padding:13px 20px; border-bottom:1px solid var(--line);
  font-size:13px; gap:16px;
  font-family:var(--font-mono);
}
.mock-row .k{ color:var(--slate-faint); white-space:nowrap; }
.mock-row .v{ color:var(--ink); text-align:right; }
.mock-pill{
  font-size:11px; letter-spacing:.04em; font-weight:600;
  border:1px solid var(--teal); border-radius:999px; color:var(--teal-bright);
  padding:4px 11px;
}
.mock-divider{
  height:1px;
  background:var(--line-strong);
}

.cta-row{ max-width:440px; margin-bottom:100px; }

/* footer */
footer{
  position:relative; z-index:2;
  border-top:1px solid var(--line);
  padding:26px 0 40px;
}
.foot-row{
  max-width:var(--wrap); margin:0 auto; padding:0 24px;
  display:flex; justify-content:space-between; align-items:center;
  font-size:12.5px; color:var(--slate-faint); letter-spacing:.02em;
}
.foot-row a{ color:var(--slate); text-decoration:none; }
.foot-row a:hover{ color:var(--teal-bright); }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 760px){
  .topbar{ padding:22px 18px 0; }
  main{ padding:0 18px; }
  .hero{ padding:64px 0 40px; }
  h1.giant{ font-size:clamp(38px, 13vw, 60px); }
  .readout-strip{ grid-template-columns:1fr; }
  .readout{ border-right:none; border-bottom:1px solid var(--line); }
  .readout:last-child{ border-bottom:none; }
  .services-grid{ grid-template-columns:1fr 1fr; }
  .app-cards{ grid-template-columns:1fr; }
  .notify-form{ flex-direction:column; border-radius:9px; }
  .notify-form button{ padding:14px; justify-content:center; }
  .foot-row{ flex-direction:column; gap:8px; align-items:flex-start; }
}

@media (max-width:480px){
  .services-grid{ grid-template-columns:1fr; }
}