:root{
  --ink: #050505;
  --panel: #121212;
  --panel-line: #444444;
  --white: #FFFFFF;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'Archivo', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
}

*{ box-sizing:border-box; margin:0; padding:0; }

html{ background:var(--ink); }

body{
  background:var(--ink);
  color:var(--white);
  font-family:var(--sans);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

@media (prefers-reduced-motion: no-preference){
  body{ animation:fadeIn .9s ease both; }
  @keyframes fadeIn{ from{opacity:0} to{opacity:1} }
}

.grain{
  position:fixed; inset:0; pointer-events:none; z-index:1; opacity:.045; 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");
}

.stage{
  position:relative;
  z-index:2;
  max-width:660px;
  margin:0 auto;
  padding:5vh 24px 32px;
  display:flex;
  flex-direction:column;
  align-items:center;
  min-height:100vh;
}

.hero{ text-align:center; margin-bottom:40px; width:100%; }

.expo-name{
  font-family:var(--mono);
  font-size:14px;
  font-weight:600;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--white);
  max-width:340px;
  margin:0 auto 10px;
  line-height:1.5;
}

.eyebrow{
  font-family:var(--mono);
  font-size:16px;
  font-weight:500;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--white);
  opacity:.8;
  margin-bottom:18px;
}

.logo{
  display:block;
  width:min(94%, 680px);
  height:auto;
  margin:0 auto 20px;
}

.sub{
  font-size:23px;
  font-weight:500;
  line-height:1.5;
  color:var(--white);
  max-width:420px;
  margin:0 auto;
}

/* panel */
.panel{
  width:100%;
  background:var(--panel);
  border:1px solid var(--panel-line);
  border-radius:2px;
  padding:38px 32px 32px;
  position:relative;
}
.panel::before{
  content:"";
  position:absolute;
  left:0; right:0; top:0;
  height:3px;
  background:var(--white);
  opacity:.9;
}

.panel-head{
  display:flex;
  align-items:baseline;
  gap:14px;
  margin-bottom:28px;
  padding-bottom:20px;
  border-bottom:1px solid var(--panel-line);
}
.tag{
  font-family:var(--mono);
  font-size:15px;
  font-weight:600;
  color:var(--white);
  letter-spacing:.06em;
}
.tag-label{
  font-family:var(--mono);
  font-size:15px;
  font-weight:500;
  color:var(--white);
  letter-spacing:.06em;
  text-transform:uppercase;
}

.form-intro{
  font-size:19px;
  font-weight:500;
  line-height:1.5;
  color:var(--white);
  margin-bottom:28px;
}

.field{
  display:block;
  margin-bottom:24px;
}
.field span{
  display:block;
  font-family:var(--mono);
  font-size:14px;
  font-weight:600;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--white);
  margin-bottom:11px;
}
.field input{
  width:100%;
  background:transparent;
  border:none;
  border-bottom:2px solid var(--panel-line);
  color:var(--white);
  font-family:var(--sans);
  font-size:23px;
  font-weight:500;
  padding:13px 2px;
  outline:none;
  transition:border-color .2s ease;
}
.field input::placeholder{ color:#6A6A6A; }
.field input:focus{ border-bottom-color:var(--white); }
.field input:invalid:not(:placeholder-shown){ border-bottom-color:#888; }

.hp{ position:absolute; left:-9999px; opacity:0; }

.consent{
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin-top:6px;
  cursor:pointer;
}
.consent input{
  flex-shrink:0;
  width:18px;
  height:18px;
  margin-top:2px;
  accent-color:var(--white);
  cursor:pointer;
}
.consent span{
  font-size:13.5px;
  line-height:1.5;
  color:var(--white);
  opacity:.75;
}

.submit{
  width:100%;
  margin-top:18px;
  background:var(--white);
  color:var(--ink);
  border:none;
  border-radius:2px;
  padding:21px 22px;
  font-family:var(--sans);
  font-size:19px;
  font-weight:700;
  letter-spacing:.01em;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  cursor:pointer;
  transition:background .18s ease, transform .12s ease;
}
.submit:hover{ background:#E6E6E6; }
.submit:active{ transform:scale(.99); }
.submit:focus-visible{ outline:3px solid var(--white); outline-offset:3px; }
.submit-arrow{ transition:transform .18s ease; font-weight:700; }
.submit:hover .submit-arrow{ transform:translateX(3px); }
.submit[disabled]{ opacity:.6; cursor:default; }
.submit[disabled] .submit-arrow{ display:none; }

.form-error{
  margin-top:16px;
  font-size:16px;
  font-weight:600;
  color:var(--white);
  font-family:var(--mono);
  border-left:3px solid var(--white);
  padding-left:12px;
}

/* success */
.success{ text-align:center; padding:16px 4px 8px; }
.success-mark{
  width:56px; height:56px;
  border:2px solid var(--white);
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  color:var(--white);
  font-size:22px;
  font-weight:700;
  margin:0 auto 22px;
}
.success-title{
  font-family:var(--serif);
  font-size:38px;
  color:var(--white);
  margin-bottom:14px;
}
.success-sub{
  font-size:18px;
  font-weight:500;
  line-height:1.55;
  color:var(--white);
  max-width:380px;
  margin:0 auto;
}

/* telegram CTA — primary action, same visual weight as the submit button */
.tg-cta{
  width:100%;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  background:var(--white);
  color:var(--ink);
  border-radius:2px;
  padding:24px 22px;
  margin-top:36px;
  text-decoration:none;
  text-align:center;
  transition:background .18s ease, transform .12s ease;
  animation:pulseGlow 2.6s ease-in-out infinite;
}
.tg-cta:hover{ background:#E6E6E6; }
.tg-cta:active{ transform:scale(.99); }
.tg-cta:focus-visible{ outline:3px solid var(--white); outline-offset:3px; }

@media (prefers-reduced-motion: no-preference){
  @keyframes pulseGlow{
    0%, 100% { box-shadow:0 0 0 0 rgba(255,255,255,0); }
    50% { box-shadow:0 0 0 10px rgba(255,255,255,.06); }
  }
}

.tg-cta-top{
  display:flex;
  align-items:center;
  gap:10px;
}
.tg-icon{ width:26px; height:26px; flex-shrink:0; }
.tg-cta-label{
  font-family:var(--sans);
  font-size:21px;
  font-weight:800;
  letter-spacing:.01em;
}
.tg-cta-sub{
  font-family:var(--mono);
  font-size:13.5px;
  font-weight:500;
  color:var(--ink);
  opacity:.72;
  max-width:340px;
  line-height:1.5;
}

.tg-cta-inline{ margin-top:28px; }

.site-link{
  display:block;
  margin-top:20px;
  font-family:var(--mono);
  font-size:14px;
  font-weight:500;
  color:var(--white);
  opacity:.75;
  text-decoration:underline;
  text-underline-offset:4px;
  text-align:center;
  transition:opacity .18s ease;
}
.site-link:hover{ opacity:1; }

.foot{
  margin-top:auto;
  padding-top:36px;
  font-family:var(--mono);
  font-size:13px;
  font-weight:500;
  letter-spacing:.04em;
  color:var(--white);
  opacity:.75;
  text-align:center;
  line-height:1.7;
}

@media (max-width:420px){
  .stage{ padding:7vh 18px 36px; }
  .panel{ padding:30px 22px 26px; }
  .logo{ width:96%; }
  .sub{ font-size:20px; }
  .field input{ font-size:20px; }
}