:root {
  color-scheme: dark;
  --bg: #061019;
  --panel: rgba(12, 29, 40, 0.82);
  --panel-strong: #102634;
  --text: #f3fbff;
  --muted: #9bb1bd;
  --line: rgba(163, 205, 220, 0.17);
  --cyan: #46dff1;
  --mint: #59efb1;
  --violet: #b970ff;
  --danger: #ff9b9b;
  --radius: 26px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 0%, rgba(70, 223, 241, .15), transparent 32rem),
    radial-gradient(circle at 88% 12%, rgba(185, 112, 255, .16), transparent 31rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a { color: inherit; }
button, input { font: inherit; }
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 10px;
  background: #fff;
  color: #061019;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 900;
  letter-spacing: -.03em;
}
.brand img {
  width: 38px;
  height: 38px;
  padding: 4px;
  object-fit: contain;
  border-radius: 11px;
  background: #f4fff9;
}
.brand span span { color: var(--mint); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.back-link, .language-link {
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 750;
}
.back-link:hover, .language-link:hover { color: var(--text); border-color: rgba(70, 223, 241, .5); }

main {
  width: min(1180px, calc(100% - 32px));
  margin: 42px auto 0;
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(370px, .78fr);
  gap: clamp(38px, 7vw, 90px);
  align-items: center;
}
.eyebrow {
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  padding: 7px 12px;
  border: 1px solid rgba(89, 239, 177, .35);
  border-radius: 999px;
  background: rgba(89, 239, 177, .08);
  color: var(--mint);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 14px currentColor;
}
h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(48px, 7vw, 88px);
  line-height: .98;
  letter-spacing: -.058em;
}
h1 em {
  display: block;
  padding-bottom: .06em;
  color: transparent;
  background: linear-gradient(105deg, var(--cyan), var(--mint) 52%, #d19aff);
  background-clip: text;
  -webkit-background-clip: text;
  font-style: normal;
}
.lead {
  max-width: 610px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
}
.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.trust-row li {
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #cce0e9;
  background: rgba(255, 255, 255, .025);
  font-size: 12px;
  font-weight: 720;
}

.signup-card {
  position: relative;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid rgba(70, 223, 241, .25);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(16, 38, 52, .96), rgba(12, 24, 38, .92));
  box-shadow: 0 26px 80px rgba(0, 0, 0, .34);
  overflow: hidden;
}
.signup-card::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  right: -110px;
  top: -120px;
  border-radius: 50%;
  background: rgba(185, 112, 255, .22);
  filter: blur(35px);
  pointer-events: none;
}
.signup-card h2 { position: relative; margin: 0; font-size: clamp(25px, 3vw, 34px); letter-spacing: -.035em; }
.form-intro { position: relative; margin: 8px 0 24px; color: var(--muted); font-size: 14px; }
fieldset { margin: 0; padding: 0; border: 0; }
legend, .field-label { display: block; margin-bottom: 9px; color: #d9eaf0; font-size: 12px; font-weight: 850; letter-spacing: .055em; text-transform: uppercase; }
.platform-details {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(1, 10, 16, .24);
}
.platform-details summary {
  min-height: 48px;
  display: flex;
  align-items: center;
  padding: 0 14px;
  color: #d9eaf0;
  cursor: pointer;
  font-size: 12px;
  font-weight: 850;
}
.platform-details[open] summary { border-bottom: 1px solid var(--line); }
.platform-details fieldset { padding: 14px; }
.platform-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.platform-option { position: relative; display: block; cursor: pointer; }
.platform-option input { position: absolute; opacity: 0; pointer-events: none; }
.platform-content {
  min-height: 78px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: rgba(1, 10, 16, .28);
  transition: border-color .15s, background .15s, transform .15s;
}
.platform-option:hover .platform-content { transform: translateY(-2px); border-color: rgba(70, 223, 241, .45); }
.platform-option input:focus-visible + .platform-content { outline: 3px solid rgba(70, 223, 241, .45); outline-offset: 2px; }
.platform-option input:checked + .platform-content {
  border-color: var(--cyan);
  background: rgba(70, 223, 241, .11);
  box-shadow: inset 0 0 0 1px rgba(70, 223, 241, .2);
}
.platform-mark { color: var(--cyan); font-size: 18px; font-weight: 950; line-height: 1; }
.platform-name { font-size: 14px; font-weight: 850; }
.platform-note { color: var(--muted); font-size: 10px; }
.email-input {
  width: 100%;
  min-height: 52px;
  padding: 0 15px;
  border: 1px solid var(--line);
  border-radius: 14px;
  outline: none;
  background: rgba(1, 10, 16, .45);
  color: var(--text);
}
.email-input::placeholder { color: #69808c; }
.email-input:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(70, 223, 241, .12); }
.consent { display: grid; grid-template-columns: 19px 1fr; gap: 10px; align-items: start; margin: 17px 0 20px; color: var(--muted); font-size: 12px; cursor: pointer; }
.consent input { width: 18px; height: 18px; margin: 1px 0 0; accent-color: #42dfae; }
.submit-button {
  width: 100%;
  min-height: 54px;
  border: 0;
  border-radius: 15px;
  background: linear-gradient(110deg, var(--cyan), var(--mint));
  color: #03140f;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 14px 34px rgba(70, 223, 241, .2);
  transition: transform .15s, filter .15s;
}
.submit-button:hover { transform: translateY(-2px); filter: brightness(1.04); }
.submit-button:disabled { cursor: wait; opacity: .68; transform: none; }
.share-button {
  width: 100%;
  min-height: 45px;
  margin-top: 10px;
  border: 1px solid rgba(70, 223, 241, .34);
  border-radius: 12px;
  background: rgba(70, 223, 241, .07);
  color: #bff7ff;
  cursor: pointer;
  font-weight: 800;
}
.share-button:hover { border-color: var(--cyan); background: rgba(70, 223, 241, .12); }
.share-button[hidden] { display: none; }
.form-status { min-height: 22px; margin: 12px 0 0; color: var(--mint); font-size: 13px; font-weight: 750; }
.form-status[data-state="error"] { color: var(--danger); }
.honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.privacy-note { margin: 12px 0 0; color: #77909c; font-size: 10.5px; }
.privacy-note a { text-underline-offset: 2px; }

.benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 72px 0 0; }
.benefit {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, .025);
}
.benefit b { display: block; margin-bottom: 5px; font-size: 15px; }
.benefit p { margin: 0; color: var(--muted); font-size: 13px; }
.benefit-number { display: block; margin-bottom: 16px; color: var(--cyan); font-size: 12px; font-weight: 900; letter-spacing: .1em; }

footer {
  width: min(1180px, calc(100% - 32px));
  margin: 70px auto 0;
  padding: 24px 0 34px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: #78909a;
  font-size: 11px;
}
.footer-links { display: flex; gap: 16px; }

@media (max-width: 880px) {
  main { margin-top: 22px; }
  .hero { grid-template-columns: 1fr; gap: 36px; }
  .signup-card { width: min(590px, 100%); }
  .benefits { margin-top: 44px; }
}
@media (max-width: 620px) {
  .site-header { min-height: 68px; }
  .back-link { display: none; }
  main { width: min(100% - 22px, 1180px); }
  h1 { font-size: clamp(43px, 14vw, 66px); }
  .platform-grid { grid-template-columns: 1fr; }
  .platform-content { min-height: 60px; flex-direction: row; align-items: center; justify-content: flex-start; gap: 8px; }
  .platform-note { margin-left: auto; }
  .benefits { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}