:root{
  --navy:#14304D;
  --navy-deep:#0B1F33;
  --cyan:#0E9ED5;
  --pale:#A4D8F2;
  --ink:#F2F8FC;
  --ink-dim:rgba(242,248,252,.62);
  --maxw:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Montserrat',sans-serif;
  background:var(--navy-deep);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.mono{font-family:'JetBrains Mono',monospace}

/* ---------- HERO ---------- */
.hero{
  position:relative;
  min-height:100vh;
  min-height:100svh;
  background:radial-gradient(120% 90% at 75% 40%, var(--navy) 0%, var(--navy-deep) 70%);
  display:flex;
  flex-direction:column;
}
#grid-canvas,#goo-canvas{
  position:absolute;inset:0;
  width:100%;height:100%;
  display:block;
}
/* #goo filter no longer used by the field - WebGL renders it directly */
/* legibility scrim over canvas, left-weighted */
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg, rgba(11,31,51,.88) 0%, rgba(11,31,51,.55) 38%, rgba(11,31,51,0) 68%);
  pointer-events:none;
}
/* soft bottom gradient so the SCROLL hint reads against the field */
.hero::before{
  content:"";position:absolute;left:0;right:0;bottom:0;height:170px;
  background:linear-gradient(0deg, rgba(11,31,51,.6) 0%, rgba(11,31,51,0) 100%);
  pointer-events:none;z-index:1;
}
.hero > *{position:relative;z-index:2}
.hero > canvas{z-index:1}
/* sticky header: needs .hero > nav specificity to beat `.hero > *` above,
   which would otherwise force position:relative and let the nav scroll away */
.hero > nav{position:fixed;top:0;left:0;right:0;z-index:50}

nav{
  display:flex;align-items:center;justify-content:space-between;
  max-width:var(--maxw);width:100%;margin:0 auto;
  padding:28px 32px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand svg{height:34px;width:auto}
.brand span{letter-spacing:.14em;font-size:17px}
.brand .w-light{font-weight:300}
.brand .w-black{font-weight:900}
.nav-links{display:flex;align-items:center;gap:36px}
.nav-links a{
  color:var(--ink-dim);text-decoration:none;font-size:14px;font-weight:500;
  transition:color .2s;
}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--ink)}
.btn{
  display:inline-block;
  font-weight:600;font-size:15px;
  padding:13px 26px;border-radius:6px;
  text-decoration:none;cursor:pointer;border:none;
  transition:transform .18s ease, box-shadow .18s ease, background .18s;
}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.btn-primary{background:var(--cyan);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(14,158,213,.35)}

.btn-ghost{background:transparent;color:var(--ink);border:1px solid rgba(164,216,242,.35)}
.btn-ghost:hover{border-color:var(--pale);background:rgba(164,216,242,.07)}
.btn-nav{padding:10px 20px;font-size:14px}
#theme-toggle{
  background:transparent;border:1px solid rgba(164,216,242,.3);color:var(--ink-dim);
  width:36px;height:36px;border-radius:8px;cursor:pointer;font-size:16px;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;
  transition:color .2s,border-color .2s;
}
#theme-toggle:hover{color:var(--ink);border-color:var(--pale)}

.hero-body{
  flex:1;display:flex;align-items:center;
  max-width:var(--maxw);width:100%;margin:0 auto;
  padding:0 32px;
}
.hero-copy{
  width:100%;
  max-width:720px;
  background:rgba(11,31,51,.32);
  backdrop-filter:blur(9px) saturate(1.15);
  -webkit-backdrop-filter:blur(9px) saturate(1.15);
  border:1px solid rgba(164,216,242,.10);
  border-radius:18px;
  padding:44px 48px;
  box-shadow:0 20px 60px rgba(0,0,0,.25);
}
@media (max-width:720px){.hero-copy{padding:32px 26px}}
.eyebrow{
  font-size:12px;letter-spacing:.22em;color:var(--cyan);
  margin-bottom:26px;font-weight:500;
}
h1{
  font-size:clamp(22px,6.2vw,68px);
  font-weight:800;line-height:1.06;letter-spacing:-.015em;
  margin-bottom:24px;
}
/* keep "trial <word>" together: the rotating word never drops to its own line */
.h1-l2{white-space:nowrap}
h1 em{font-style:normal;color:var(--pale)}
#rotor{display:inline-block;transition:opacity .45s ease, transform .45s ease}
#rotor.swap{opacity:0;transform:translateY(.35em)}
.sub{
  font-size:clamp(16px,1.5vw,19px);line-height:1.65;color:var(--ink-dim);
  max-width:520px;margin-bottom:38px;font-weight:400;
}
.cta-row{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px}
.trust{
  font-size:12.5px;letter-spacing:.08em;color:rgba(242,248,252,.42);
}
.trust b{color:rgba(242,248,252,.7);font-weight:600;letter-spacing:.1em}
.trust .sep{margin:0 12px;color:rgba(164,216,242,.3)}

.scroll-hint{
  position:absolute;bottom:30px;left:50%;transform:translateX(-50%);
  color:rgba(164,216,242,.72);font-size:11px;letter-spacing:.25em;
  animation:hint 2.6s ease-in-out infinite;
}
@keyframes hint{0%,100%{opacity:.5;transform:translate(-50%,0)}50%{opacity:1;transform:translate(-50%,6px)}}

/* ---------- STATS SECTION ---------- */
.stats{
  background:linear-gradient(180deg,var(--navy-deep) 0%, var(--navy) 100%);
  padding:140px 32px;
  border-top:1px solid rgba(164,216,242,.08);
}
.stats-inner{max-width:var(--maxw);margin:0 auto}
.stats .eyebrow{color:var(--pale)}
.stats h2{
  font-size:clamp(28px,3.4vw,42px);font-weight:700;letter-spacing:-.01em;
  max-width:680px;line-height:1.2;margin-bottom:80px;
}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:64px}
.stat{
  opacity:0;transform:translateY(28px);
  transition:opacity .7s ease, transform .7s ease;
}
.stat.in{opacity:1;transform:none}
.stat .num{
  font-size:clamp(54px,6vw,76px);font-weight:800;color:var(--cyan);
  letter-spacing:-.02em;line-height:1;font-variant-numeric:tabular-nums;
}
.stat .num small{font-size:.55em;font-weight:700}
/* phrase-style stat (e.g. "months → weeks") sized to fit the column */
.stat .num-phrase{font-size:clamp(28px,3vw,40px);line-height:1.12}
.stat .label{
  margin-top:18px;font-size:15px;line-height:1.6;color:var(--ink-dim);max-width:300px;
}
.stat .src{
  margin-top:14px;font-size:11px;letter-spacing:.06em;color:rgba(164,216,242,.45);
}
.stat .src a{color:inherit;text-decoration:none}
.stat .src a:hover,.stat .src a:focus-visible{text-decoration:underline}

/* ---------- HOW IT WORKS ---------- */
.how{
  background:var(--navy-deep);
  padding:140px 32px;border-top:1px solid rgba(164,216,242,.08);
}
.how-inner{max-width:var(--maxw);margin:0 auto}
.how .eyebrow{color:var(--pale)}
.how h2{
  font-size:clamp(28px,3.4vw,42px);font-weight:700;letter-spacing:-.01em;
  max-width:720px;line-height:1.2;margin-bottom:22px;
}
.how-lead{
  font-size:clamp(15px,1.4vw,18px);line-height:1.65;color:var(--ink-dim);
  max-width:600px;margin-bottom:72px;
}
.how-steps{
  list-style:none;display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:40px;
  counter-reset:step;
}
/* solid card (no backdrop-filter): blur is pointless over the flat .how bg and,
   combined with the opacity/transform reveal, triggers a compositor flash that
   drops the card after the transition - the bug that made these "disappear". */
.step{
  background:rgba(164,216,242,.045);
  border:1px solid rgba(164,216,242,.12);
  border-radius:16px;padding:34px 30px;
  transition:opacity .7s ease, transform .7s ease;
}
/* hidden-initial state is opt-in: only when the reveal JS has run and added
   .reveal. If that JS never runs, cards stay visible instead of vanishing. */
.how-steps.reveal .step{opacity:0;transform:translateY(28px)}
.how-steps.reveal .step.in{opacity:1;transform:none}
.step-num{
  font-size:13px;letter-spacing:.22em;color:var(--cyan);
  font-weight:500;margin-bottom:22px;
}
/* connecting pipeline rail + a cyan pulse travelling through the steps.
   Only on the single-row (4-across) desktop layout; cards stack below that. */
@media (min-width:1100px){
  .how-steps{position:relative}
  .step{position:relative;z-index:1}
  .how-steps::before,
  .how-steps::after{
    content:"";position:absolute;left:0;right:0;top:50px;height:2px;
    z-index:0;pointer-events:none;
  }
  .how-steps::before{
    background:linear-gradient(90deg,
      rgba(14,158,213,0) 0%, rgba(14,158,213,.30) 10%,
      rgba(14,158,213,.30) 90%, rgba(14,158,213,0) 100%);
  }
  .how-steps::after{
    background:linear-gradient(90deg, transparent 0%,
      rgba(14,158,213,.0) 30%, #7fdcff 50%, rgba(14,158,213,0) 70%, transparent 100%);
    background-size:200px 100%;background-repeat:no-repeat;
    filter:drop-shadow(0 0 6px rgba(14,158,213,.9));
    animation:step-pulse 4.8s linear infinite;
  }
}
@keyframes step-pulse{
  0%{background-position:-200px 0;opacity:0}
  10%{opacity:1}
  90%{opacity:1}
  100%{background-position:calc(100% + 200px) 0;opacity:0}
}
@media (prefers-reduced-motion:reduce){ .how-steps::after{animation:none;opacity:0} }
.step h3{font-size:21px;font-weight:700;letter-spacing:-.01em;margin-bottom:12px}
.step p{font-size:15px;line-height:1.65;color:var(--ink-dim)}

/* ---------- WAITLIST / FORM ---------- */
.waitlist{
  background:linear-gradient(180deg,var(--navy-deep) 0%, var(--navy) 100%);
  padding:140px 32px;border-top:1px solid rgba(164,216,242,.08);
}
.waitlist-inner{
  max-width:var(--maxw);margin:0 auto;
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
}
.waitlist .eyebrow{color:var(--pale)}
.waitlist-copy h2{
  font-size:clamp(28px,3.4vw,42px);font-weight:700;letter-spacing:-.01em;
  line-height:1.2;margin:8px 0 20px;
}
.waitlist-sub{
  font-size:clamp(15px,1.4vw,18px);line-height:1.65;color:var(--ink-dim);
  max-width:440px;
}
.form-card{
  position:relative;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:18px;padding:36px 36px;
  backdrop-filter:blur(9px) saturate(1.15);
  -webkit-backdrop-filter:blur(9px) saturate(1.15);
  box-shadow:0 20px 60px rgba(0,0,0,.25);
  transition:height .45s ease;
  overflow:hidden;
}
.form-content{transition:opacity .35s ease}
.form-content.fading{opacity:0}
.form-content.hidden{display:none}
.form-group{margin-bottom:20px}
.form-group label{
  display:block;font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--ink-dim);margin-bottom:8px;
}
.form-group .optional{font-weight:400;color:rgba(164,216,242,.45)}
.form-group input,
.form-group textarea{
  width:100%;font-family:inherit;font-size:15px;color:var(--ink);
  background:rgba(11,31,51,.35);
  border:1px solid rgba(164,216,242,.18);
  border-radius:8px;padding:13px 15px;
  transition:border-color .2s, background .2s;
  resize:vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder{color:rgba(164,216,242,.4)}
.form-group input:focus,
.form-group textarea:focus{
  outline:none;border-color:var(--cyan);background:rgba(11,31,51,.55);
}
.form-group input:user-invalid{border-color:#e0617a}
.form-submit{width:100%;margin-top:6px;text-align:center}
.success-message{
  display:none;text-align:center;padding:24px 8px;
  opacity:0;transition:opacity .4s ease;
}
.success-message.show{display:block}
.success-message.visible{opacity:1}
.success-icon{
  width:56px;height:56px;margin:0 auto 18px;color:var(--cyan);
  border:2px solid var(--cyan);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
}
.success-icon svg{width:28px;height:28px}
.success-title{font-size:22px;font-weight:700;margin-bottom:10px}
.success-text{font-size:15px;line-height:1.6;color:var(--ink-dim);max-width:300px;margin:0 auto}

@media (max-width:720px){
  .how,.waitlist{padding:96px 24px}
  .waitlist-inner{grid-template-columns:1fr;gap:40px}
  .form-card{padding:28px 24px}
}

/* light theme: inputs read on the pale field */
html[data-theme="light"] .how,
html[data-theme="light"] .waitlist{border-top-color:rgba(20,48,77,.08)}
html[data-theme="light"] .how{background:#ffffff}
html[data-theme="light"] .step{background:rgba(20,48,77,.035);border-color:rgba(20,48,77,.10)}
html[data-theme="light"] .waitlist{background:linear-gradient(180deg,#ffffff 0%, #eef4f9 100%)}
html[data-theme="light"] .form-card{box-shadow:0 20px 60px rgba(20,48,77,.15)}
html[data-theme="light"] .form-group input,
html[data-theme="light"] .form-group textarea{
  background:rgba(255,255,255,.7);border-color:rgba(20,48,77,.16);
}
html[data-theme="light"] .form-group input:focus,
html[data-theme="light"] .form-group textarea:focus{
  background:#fff;border-color:var(--cyan);
}
html[data-theme="light"] .form-group input::placeholder,
html[data-theme="light"] .form-group textarea::placeholder{color:rgba(20,48,77,.4)}

/* ---------- CONTACT SECTION ---------- */
.contact{
  background:var(--navy-deep);
  padding:120px 32px;border-top:1px solid rgba(164,216,242,.08);
}
.contact-inner{
  max-width:var(--maxw);margin:0 auto;
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
}
.contact-copy h2{
  font-size:clamp(28px,3.4vw,42px);font-weight:700;letter-spacing:-.01em;
  line-height:1.2;margin:18px 0 20px;
}
.contact-sub{
  font-size:clamp(15px,1.4vw,18px);line-height:1.6;color:var(--ink-dim);
  margin-bottom:32px;max-width:420px;
}
.contact-map{position:relative;width:100%;max-width:560px;aspect-ratio:1.57/1;margin-left:auto}
#ch-map{width:100%;height:100%;display:block}

footer{
  background:var(--navy);padding:40px 32px;border-top:1px solid rgba(164,216,242,.08);
  text-align:center;font-size:12px;color:rgba(242,248,252,.35);letter-spacing:.06em;
}
.footer-links{display:inline-flex;gap:18px;margin-left:18px}
.footer-links a{color:inherit;text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s}
.footer-links a:hover{border-bottom-color:rgba(164,216,242,.4)}
.fallback-message{margin-top:18px;font-size:14px;line-height:1.6;color:var(--ink-dim);text-align:center}
.fallback-message a{color:var(--cyan);text-decoration:none}
.fallback-message a:hover{text-decoration:underline}

@media (max-width:720px){
  .contact-inner{grid-template-columns:1fr;gap:40px}
  .contact-map{margin:0 auto;max-width:420px}
}

@media (max-width:720px){
  .nav-links a:not(.btn){display:none}
  .hero::after{background:linear-gradient(180deg, rgba(11,31,51,.82) 0%, rgba(11,31,51,.55) 60%, rgba(11,31,51,.3) 100%)}
}
@media (prefers-reduced-motion:reduce){
  .scroll-hint{animation:none}
  .stat{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- TUNING PANEL ---------- */
#tune-toggle{
  position:fixed;right:16px;bottom:16px;z-index:50;
  background:rgba(11,31,51,.9);color:var(--pale);border:1px solid rgba(164,216,242,.3);
  border-radius:8px;padding:8px 12px;font-family:'JetBrains Mono',monospace;font-size:12px;
  cursor:pointer;
}
#tune-panel{
  position:fixed;right:16px;bottom:60px;z-index:50;width:300px;max-height:78vh;overflow-y:auto;
  background:rgba(11,31,51,.94);border:1px solid rgba(164,216,242,.25);border-radius:10px;
  padding:14px;font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--ink-dim);
  display:none;backdrop-filter:blur(6px);
}
#tune-panel.open{display:block}
#tune-panel h4{color:var(--pale);font-size:10px;letter-spacing:.15em;margin:14px 0 6px;font-weight:500}
#tune-panel h4:first-child{margin-top:0}
.tune-row{display:grid;grid-template-columns:88px 1fr 44px;gap:8px;align-items:center;margin:4px 0}
.tune-row label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tune-row input[type=range]{width:100%;accent-color:var(--cyan);height:14px}
.tune-row .val{text-align:right;color:var(--ink)}
#tune-copy{
  margin-top:12px;width:100%;background:var(--cyan);color:#fff;border:none;border-radius:6px;
  padding:8px;font-family:inherit;font-size:11px;cursor:pointer;
}
#accent-toggle{
  margin-top:6px;width:100%;background:rgba(164,216,242,.08);color:var(--pale);
  border:1px solid rgba(164,216,242,.3);border-radius:6px;
  padding:8px;font-family:inherit;font-size:11px;cursor:pointer;letter-spacing:.05em;
}
#accent-toggle:hover{border-color:var(--pale)}

/* ---------- LIGHT THEME ---------- */
html[data-theme="light"]{
  --navy:#dbe7f1;
  --navy-deep:#eef4f9;
  --ink:#0B1F33;
  --ink-dim:rgba(11,31,51,.64);
  --pale:#0E9ED5;                 /* text accent stays vivid; only the field is muted */
}
html[data-theme="light"] body{background:var(--navy-deep)}
html[data-theme="light"] .hero{
  background:radial-gradient(120% 90% at 75% 40%, #ffffff 0%, #e6eef5 70%);
}
html[data-theme="light"] .hero::after{
  background:linear-gradient(100deg, rgba(255,255,255,.85) 0%, rgba(255,255,255,.5) 38%, rgba(255,255,255,0) 68%);
}
html[data-theme="light"] .hero-copy{
  background:rgba(255,255,255,.5);
  border-color:rgba(20,48,77,.10);
  box-shadow:0 20px 60px rgba(20,48,77,.15);
}
html[data-theme="light"] .btn-ghost{border-color:rgba(20,48,77,.25);color:var(--ink)}
html[data-theme="light"] .btn-ghost:hover{border-color:var(--cyan);background:rgba(14,158,213,.06)}
html[data-theme="light"] .trust{color:rgba(11,31,51,.5)}
html[data-theme="light"] .trust b{color:rgba(11,31,51,.72)}
html[data-theme="light"] .trust .sep{color:rgba(20,48,77,.3)}
html[data-theme="light"] .scroll-hint{color:rgba(20,48,77,.6)}
html[data-theme="light"] .hero::before{
  background:linear-gradient(0deg, rgba(255,255,255,.65) 0%, rgba(255,255,255,0) 100%);
}
html[data-theme="light"] .stats{
  background:linear-gradient(180deg, #eef4f9 0%, #ffffff 100%);
  border-top-color:rgba(20,48,77,.08);
}
html[data-theme="light"] .stat .src{color:rgba(20,48,77,.5)}
html[data-theme="light"] footer{
  background:#e6eef5;color:rgba(11,31,51,.45);border-top-color:rgba(20,48,77,.08);
}
html[data-theme="light"] #theme-toggle{border-color:rgba(20,48,77,.25)}
html[data-theme="light"] .nav-links a{color:rgba(11,31,51,.6)}
html[data-theme="light"] .nav-links a:hover,
html[data-theme="light"] .nav-links a:focus-visible{color:var(--ink)}
@media (max-width:720px){
  html[data-theme="light"] .hero::after{
    background:linear-gradient(180deg, rgba(255,255,255,.85) 0%, rgba(255,255,255,.5) 60%, rgba(255,255,255,.3) 100%);
  }
}

/* ---------- NAV: three equal-height frosted boxes (logo / links / toggle) ---------- */
:root{ --glass-bg:rgba(11,31,51,.34); --glass-border:rgba(164,216,242,.16); --nav-h:50px; }
html[data-theme="light"]{ --glass-bg:rgba(255,255,255,.55); --glass-border:rgba(20,48,77,.14); }
.nav-right{display:flex;align-items:center;gap:12px}
.brand,
.nav-links,
#theme-toggle{
  height:var(--nav-h);
  display:flex;align-items:center;box-sizing:border-box;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:12px;
  backdrop-filter:blur(9px) saturate(1.15);
  -webkit-backdrop-filter:blur(9px) saturate(1.15);
}
.brand{gap:12px;padding:0 18px}
.brand svg{height:26px}          /* shrunk so the logo box matches the others */
.nav-links{gap:26px;padding:0 20px}
#theme-toggle{
  width:var(--nav-h);justify-content:center;padding:0;border-radius:12px;
  color:var(--ink-dim);font-size:16px;cursor:pointer;
}
#theme-toggle:hover{color:var(--ink);border-color:var(--glass-border)}

/* mobile: hide the (now empty) links box; headline keeps "trial <word>" on one line */
@media (max-width:720px){
  .nav-links{display:none}
  .hero-copy{padding:30px 22px}
}