:root{
  --black:#030303;
  --black-2:#0a0a0b;
  --line:#232326;
  --off-white:#f3f1ee;
  --gray:#9a9a9f;
  --gray-dim:#6c6c72;
  --crimson:#c50238;
  --crimson-bright:#e8033f;
  --font-display:'Sora', system-ui, sans-serif;
  --font-mono:'IBM Plex Mono', monospace;
}

*,*::before,*::after{box-sizing:border-box;}
body{
  margin:0;
  background:var(--black);
  color:var(--off-white);
  font-family:var(--font-display);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
  overflow-x:hidden;
  position:relative;
}
a{color:inherit;text-decoration:none;}
h1{margin:0;font-weight:700;letter-spacing:-0.02em;}
p{margin:0;}

/* background glows */
.bg-glow{
  position:fixed;
  border-radius:50%;
  pointer-events:none;
  z-index:0;
  filter:blur(2px);
}
.bg-glow-1{
  top:-15%;right:-10%;
  width:55vw;height:55vw;max-width:680px;max-height:680px;
  background:radial-gradient(circle, rgba(197,2,56,.22), transparent 68%);
}
.bg-glow-2{
  bottom:-20%;left:-15%;
  width:50vw;height:50vw;max-width:620px;max-height:620px;
  background:radial-gradient(circle, rgba(197,2,56,.16), transparent 68%);
}
.bg-glow-3{
  top:40%;left:50%;transform:translateX(-50%);
  width:40vw;height:40vw;max-width:500px;max-height:500px;
  background:radial-gradient(circle, rgba(197,2,56,.08), transparent 70%);
}

/* header */
.header{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;
  max-width:1180px;margin:0 auto;
  padding:22px 24px;
}
.logo-img{height:48px;width:auto;}
.back-link{
  font-size:13.5px;color:var(--gray);
  transition:color .18s ease;
}
.back-link:hover{color:var(--off-white);}

/* layout */
.wrap{
  position:relative;z-index:1;
  max-width:640px;
  margin:0 auto;
  padding:20px 24px 90px;
  display:flex;
  flex-direction:column;
  gap:26px;
}

.glass{
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,.12);
  border-radius:24px;
}

/* eyebrow */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.03em;
  color:var(--off-white);
  margin-bottom:16px;
  padding:8px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(255,255,255,.02);
}
.mark{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--crimson);}

/* intro */
.intro-card{
  padding:44px 40px;
  text-align:center;
}
.intro-card h1{
  font-size:clamp(1.6rem, 4vw, 2.1rem);
  line-height:1.2;
  margin-bottom:18px;
}
.intro-text{
  font-size:15px;
  color:var(--gray);
  line-height:1.7;
  max-width:480px;
  margin:0 auto;
}

/* calc card */
.calc-card{
  padding:40px;
  display:flex;
  flex-direction:column;
  gap:26px;
}
.field{display:flex;flex-direction:column;gap:10px;}
.field label{
  font-size:14px;
  color:var(--off-white);
  font-weight:500;
  line-height:1.4;
}
.hint{color:var(--gray-dim);font-weight:400;font-size:13px;}
.field input[type="number"],
.field input[type="text"]{
  width:100%;
  background:rgba(0,0,0,.35);
  border:1px solid var(--line);
  color:var(--off-white);
  padding:15px 16px;
  font-family:var(--font-display);
  font-size:16px;
  border-radius:12px;
  outline:none;
  transition:border-color .18s ease;
}
.field input::placeholder{color:var(--gray-dim);}
.field input:focus{border-color:var(--crimson);}

.conversion-row{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  animation:fadeUp .35s ease;
}
.conversion-pill{
  font-size:13px;
  padding:8px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--gray);
}
.conversion-pill strong{font-weight:700;margin-right:4px;}
.conversion-good strong{color:#4ade80;}
.conversion-bad strong{color:var(--crimson-bright);}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  padding:16px 30px;
  border-radius:999px;
  font-family:var(--font-display);
  font-weight:600;
  font-size:15px;
  cursor:pointer;
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(16px);
  transition:transform .18s ease, background .18s ease, box-shadow .18s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn-solid{
  background:rgba(197,2,56,.8);
  color:#fff;
  box-shadow:0 8px 24px rgba(197,2,56,.25);
}
.btn-solid:hover{background:rgba(232,3,63,.9);box-shadow:0 10px 30px rgba(197,2,56,.35);}
.btn-full{width:100%;}

.calc-error{
  font-size:13px;
  color:var(--crimson-bright);
  text-align:center;
  min-height:16px;
}

/* result */
.result-card{
  padding:44px 40px;
  text-align:center;
  animation:fadeUp .5s ease;
}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(16px);}
  to{opacity:1;transform:translateY(0);}
}
.result-label{
  font-size:14.5px;
  color:var(--gray);
  margin-bottom:10px;
}
.result-value{
  font-size:clamp(2.6rem, 8vw, 3.6rem);
  font-weight:800;
  color:var(--crimson-bright);
  line-height:1;
  margin-bottom:14px;
  letter-spacing:-0.02em;
}
.result-annual{
  font-size:14.5px;
  color:var(--gray);
  margin-bottom:22px;
}
.result-annual strong{color:var(--off-white);font-weight:600;}
.result-disclaimer{
  font-size:12.5px;
  color:var(--gray-dim);
  line-height:1.6;
  max-width:420px;
  margin:0 auto;
}
.result-divider{
  height:1px;
  background:var(--line);
  margin:32px 0 28px;
}
.cta-text{
  font-size:16px;
  color:var(--off-white);
  font-weight:600;
  margin-bottom:22px;
}

.lead-form{
  display:flex;
  flex-direction:column;
  gap:12px;
  text-align:left;
}
.lead-form input{
  width:100%;
  background:rgba(0,0,0,.35);
  border:1px solid var(--line);
  color:var(--off-white);
  padding:14px 16px;
  font-family:var(--font-display);
  font-size:14.5px;
  border-radius:12px;
  outline:none;
  transition:border-color .18s ease;
}
.lead-form input::placeholder{color:var(--gray-dim);}
.lead-form input:focus{border-color:var(--crimson);}
.form-note{
  font-size:13px;
  color:var(--gray);
  text-align:center;
  min-height:18px;
}
.form-note.success{color:#4ade80;}
.form-note.error{color:var(--crimson-bright);}

/* footer */
.footer-calc{
  position:relative;z-index:1;
  text-align:center;
  padding:0 24px 40px;
  font-size:12.5px;
  color:var(--gray-dim);
}

a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--crimson-bright);
  outline-offset:2px;
}

@media (max-width:600px){
  .intro-card,.calc-card,.result-card{padding:30px 24px;}
  .header{padding:18px 20px;}
  .logo-img{height:40px;}
}