:root {
  color-scheme: dark;
  --bg: #07090d;
  --surface: #0e1118;
  --surface-2: #121722;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f4f7fb;
  --muted: #969eac;
  --cyan: #72e1ff;
  --cyan-deep: #23b8e7;
  --violet: #a89bff;
  --success: #79e5b1;
  --danger: #ff8f9b;
  --radius-lg: 28px;
  --radius-md: 18px;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.38);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  overflow-x: clip;
  background:
    radial-gradient(circle at 79% 12%, rgba(86, 72, 200, 0.12), transparent 28rem),
    radial-gradient(circle at 10% 18%, rgba(30, 163, 203, 0.08), transparent 25rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  opacity: 0.18;
  background-image: linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}

a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }

::selection { background: rgba(114, 225, 255, 0.25); color: white; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--text);
  color: var(--bg);
  transition: top .2s ease;
}
.skip-link:focus { top: 16px; }

.site-shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
  border-bottom: 1px solid var(--line);
}

.brand { display: inline-flex; align-items: center; gap: 11px; font-size: .96rem; font-weight: 700; letter-spacing: -.02em; }
.brand-mark {
  display: grid;
  width: 31px;
  height: 31px;
  place-items: center;
  border: 1px solid rgba(114, 225, 255, .32);
  border-radius: 9px;
  background: linear-gradient(145deg, rgba(114,225,255,.18), rgba(168,155,255,.08));
  color: var(--cyan);
  box-shadow: inset 0 0 16px rgba(114, 225, 255, .08);
}

.nav-links { display: flex; align-items: center; gap: 31px; color: #aeb5c1; font-size: .88rem; }
.nav-links > a { transition: color .2s ease; }
.nav-links > a:hover { color: var(--text); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255,255,255,.035);
  color: var(--text) !important;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(430px, .78fr);
  gap: clamp(50px, 8vw, 106px);
  align-items: center;
  min-height: calc(100vh - 85px);
  padding: 76px 0 94px;
}

.eyebrow, .overline { color: var(--cyan); font-size: .73rem; font-weight: 750; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 25px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); box-shadow: 0 0 14px var(--success); }

h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 28px;
  font-size: clamp(3.7rem, 7vw, 6.9rem);
  font-weight: 680;
  line-height: .91;
  letter-spacing: -.074em;
}
h1 span {
  background: linear-gradient(100deg, #fff 0%, var(--cyan) 45%, var(--violet) 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lede { max-width: 590px; margin-bottom: 27px; color: #adb4c0; font-size: clamp(1.05rem, 1.6vw, 1.2rem); line-height: 1.72; }
.trust-row { display: flex; flex-wrap: wrap; gap: 22px; color: #b8bec8; font-size: .82rem; }
.trust-row > span { display: inline-flex; align-items: center; gap: 8px; }
.trust-icon { display: grid; width: 18px; height: 18px; place-items: center; border: 1px solid rgba(121,229,177,.3); border-radius: 50%; color: var(--success); font-size: .68rem; }

.composer-wrap { position: relative; }
.composer-glow { position: absolute; inset: -12%; z-index: -1; border-radius: 50%; background: radial-gradient(circle, rgba(78, 204, 242, .16), rgba(92, 69, 182, .06) 48%, transparent 70%); filter: blur(30px); }
.composer {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 36px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(19,24,34,.95), rgba(11,14,20,.96));
  box-shadow: var(--shadow), inset 0 1px rgba(255,255,255,.04);
}
.composer::before { position: absolute; top: 0; left: 8%; right: 8%; height: 1px; content: ""; background: linear-gradient(90deg, transparent, rgba(114,225,255,.75), transparent); }
.composer-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 29px; }
.overline { margin-bottom: 9px; }
.composer h2 { margin-bottom: 0; font-size: 1.2rem; letter-spacing: -.03em; }
.lock-badge { flex: 0 0 auto; padding: 6px 10px; border: 1px solid rgba(121,229,177,.16); border-radius: 999px; background: rgba(121,229,177,.06); color: var(--success); font-size: .67rem; font-weight: 700; letter-spacing: .03em; }
.lock-badge::first-letter { font-size: .48rem; }

.field-group { margin-bottom: 20px; }
.field-group label { display: block; margin-bottom: 8px; color: #dce1e9; font-size: .78rem; font-weight: 650; }
.label-row { display: flex; justify-content: space-between; align-items: center; }
.character-count { color: #707887; font-size: .7rem; }
.input-shell { position: relative; }
.input-prefix { position: absolute; left: 16px; top: 50%; color: #767f8e; transform: translateY(-50%); }
input, textarea {
  width: 100%;
  border: 1px solid rgba(255,255,255,.11);
  outline: none;
  border-radius: 13px;
  background: rgba(4,6,9,.48);
  color: var(--text);
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
input { height: 51px; padding: 0 16px 0 38px; }
textarea { min-height: 137px; padding: 14px 16px; resize: vertical; line-height: 1.55; }
input::placeholder, textarea::placeholder { color: #5f6774; }
input:focus, textarea:focus { border-color: rgba(114,225,255,.58); background: rgba(7,10,14,.7); box-shadow: 0 0 0 3px rgba(114,225,255,.08); }
input[aria-invalid="true"], textarea[aria-invalid="true"] { border-color: rgba(255,143,155,.65); }
.field-hint, .field-error { margin: 7px 2px 0; font-size: .68rem; line-height: 1.4; }
.field-hint { color: #687180; }
.field-error { min-height: 0; color: var(--danger); }
.field-error:empty { display: none; }

.send-button {
  display: flex;
  width: 100%;
  height: 54px;
  align-items: center;
  justify-content: center;
  gap: 11px;
  border: 0;
  border-radius: 14px;
  background: linear-gradient(105deg, var(--cyan), #8dd9ff 52%, #b4a8ff);
  color: #071017;
  cursor: pointer;
  font-size: .89rem;
  font-weight: 800;
  box-shadow: 0 10px 30px rgba(80,190,230,.14);
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}
.send-button:hover { transform: translateY(-2px); box-shadow: 0 15px 36px rgba(80,190,230,.22); filter: brightness(1.05); }
.send-button:active { transform: translateY(0); }
.send-button:disabled { cursor: wait; opacity: .7; transform: none; }
.button-icon { font-size: 1.2rem; }
.form-status { display: none; margin-top: 13px; padding: 11px 13px; border-radius: 10px; font-size: .76rem; }
.form-status.success { display: block; border: 1px solid rgba(121,229,177,.2); background: rgba(121,229,177,.07); color: #a8efca; }
.form-status.error { display: block; border: 1px solid rgba(255,143,155,.2); background: rgba(255,143,155,.07); color: #ffadb6; }
.form-note { margin: 15px 0 0; color: #6f7784; text-align: center; font-size: .67rem; }
.form-note span { margin-right: 5px; color: var(--cyan); }

.steps-section, .faq-section { padding: 124px 0; }
.section-heading { max-width: 650px; margin-bottom: 49px; }
.section-heading h2, .receive-copy h2 { margin-bottom: 14px; font-size: clamp(2.2rem, 4vw, 3.7rem); line-height: 1.04; letter-spacing: -.055em; }
.section-heading > p:last-child, .receive-copy > p { color: var(--muted); font-size: 1rem; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
.step-card {
  position: relative;
  min-height: 310px;
  padding: 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(14,17,24,.7);
}
.step-card.featured { border-color: rgba(114,225,255,.19); background: linear-gradient(150deg, rgba(20,32,42,.85), rgba(14,17,24,.8)); }
.step-number { position: absolute; top: 24px; right: 25px; color: #4b535f; font: 600 .74rem ui-monospace, SFMono-Regular, Menlo, monospace; }
.step-icon { display: grid; width: 47px; height: 47px; margin-bottom: 70px; place-items: center; border: 1px solid rgba(114,225,255,.18); border-radius: 14px; background: rgba(114,225,255,.065); color: var(--cyan); font-size: 1.1rem; }
.step-card h3 { margin-bottom: 10px; font-size: 1.08rem; letter-spacing: -.025em; }
.step-card p { margin-bottom: 0; color: #89919e; font-size: .86rem; line-height: 1.65; }

.receive-section {
  display: grid;
  grid-template-columns: .78fr 1.22fr;
  gap: clamp(40px, 8vw, 100px);
  align-items: center;
  padding: 75px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: linear-gradient(120deg, rgba(14,19,27,.96), rgba(16,17,28,.9));
  box-shadow: inset 0 1px rgba(255,255,255,.035);
}
.receive-copy > p { margin-bottom: 28px; }
.secondary-button { display: inline-flex; align-items: center; gap: 10px; padding: 12px 17px; border: 1px solid var(--line-strong); border-radius: 999px; background: rgba(255,255,255,.04); font-size: .83rem; font-weight: 650; transition: border-color .2s ease, background .2s ease; }
.secondary-button:hover { border-color: rgba(114,225,255,.35); background: rgba(114,225,255,.07); }
.receive-options { display: grid; gap: 12px; }
.receive-options article { padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: rgba(4,6,10,.26); }
.option-tag { color: var(--violet); font-size: .66rem; font-weight: 750; letter-spacing: .13em; text-transform: uppercase; }
.receive-options h3 { margin: 8px 0 6px; font-size: 1rem; }
.receive-options p { margin: 0; color: #8f97a4; font-size: .81rem; line-height: 1.62; }
.receive-options strong { color: #cbd2dc; font-weight: 600; }

.embed-section {
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: clamp(44px, 8vw, 100px);
  align-items: center;
  padding: 124px 0 0;
}
.embed-copy h2 { margin-bottom: 17px; font-size: clamp(2.2rem, 4vw, 3.7rem); line-height: 1.04; letter-spacing: -.055em; }
.embed-copy > p:not(.overline) { max-width: 510px; color: var(--muted); font-size: .96rem; line-height: 1.72; }
.embed-benefits { display: grid; gap: 11px; margin: 28px 0 0; padding: 0; color: #b9c0ca; font-size: .82rem; list-style: none; }
.embed-benefits li { display: flex; align-items: center; gap: 9px; }
.embed-benefits span { display: grid; width: 18px; height: 18px; place-items: center; border: 1px solid rgba(121,229,177,.25); border-radius: 50%; color: var(--success); font-size: .66rem; }
.code-card { min-width: 0; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 22px; background: linear-gradient(145deg, rgba(17,22,31,.96), rgba(10,13,19,.96)); box-shadow: var(--shadow); }
.code-card-header { display: flex; min-height: 58px; align-items: center; justify-content: space-between; padding: 0 20px; border-bottom: 1px solid var(--line); color: #aab1bd; font-size: .74rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.copy-button { padding: 8px 11px; border: 1px solid var(--line-strong); border-radius: 9px; background: rgba(255,255,255,.035); color: var(--text); cursor: pointer; font-size: .67rem; font-weight: 700; letter-spacing: 0; text-transform: none; transition: border-color .2s ease, background .2s ease; }
.copy-button:hover { border-color: rgba(114,225,255,.35); background: rgba(114,225,255,.07); }
.copy-button.copied { border-color: rgba(121,229,177,.3); color: var(--success); }
.code-card pre { max-width: 100%; margin: 0; padding: 25px 22px; overflow-x: auto; background: rgba(2,4,7,.32); color: #c9d2df; font: 500 .78rem/1.7 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; tab-size: 2; }
.code-card pre code { padding: 0; border: 0; background: none; color: inherit; white-space: pre; }
.copy-status, .code-note { margin: 0; padding: 0 22px; color: #7f8896; font-size: .72rem; line-height: 1.6; }
.copy-status { padding-top: 18px; }
.copy-status strong { color: #b8c0cb; font-weight: 650; }
.code-note { padding-top: 8px; padding-bottom: 20px; }

.section-heading.compact { margin-bottom: 30px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; list-style: none; font-size: 1rem; font-weight: 600; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--cyan); font-size: 1.4rem; font-weight: 300; transition: transform .2s ease; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { max-width: 730px; margin: -4px 0 24px; color: #8f97a4; font-size: .88rem; line-height: 1.7; }
code { padding: 3px 6px; border: 1px solid var(--line); border-radius: 6px; background: rgba(255,255,255,.04); color: #cdd3dd; }
.inline-link { color: var(--cyan); text-decoration: underline; text-decoration-color: rgba(114,225,255,.35); text-underline-offset: 3px; }
.inline-link:hover { text-decoration-color: var(--cyan); }

.site-footer { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; min-height: 120px; border-top: 1px solid var(--line); color: #777f8b; font-size: .77rem; }
.footer-brand { color: #bec4cd; }
.site-footer p { margin: 0; text-align: center; }
.footer-links { display: flex; justify-content: flex-end; gap: 25px; }
.footer-links a:hover { color: var(--text); }

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; min-height: auto; gap: 64px; padding: 88px 0 110px; }
  .hero-copy { max-width: 720px; }
  .composer-wrap { max-width: 650px; width: 100%; }
  .steps-grid { grid-template-columns: 1fr; }
  .step-card { min-height: 240px; }
  .step-icon { margin-bottom: 48px; }
  .receive-section { grid-template-columns: 1fr; padding: 55px; }
  .embed-section { grid-template-columns: 1fr; }
  .embed-copy { max-width: 650px; }
}

@media (max-width: 720px) {
  .site-shell { width: min(100% - 28px, 1180px); }
  .site-header { min-height: 72px; }
  .nav-links > a:not(.nav-cta) { display: none; }
  .nav-cta { padding: 9px 12px; font-size: .76rem; }
  .hero { padding: 68px 0 84px; gap: 50px; }
  h1 { font-size: clamp(3.2rem, 17vw, 5rem); }
  .trust-row { display: grid; gap: 11px; }
  .composer-glow { inset: -8% 0; }
  .composer { padding: 24px 19px; border-radius: 22px; }
  .composer-heading { display: block; }
  .lock-badge { display: inline-block; margin-top: 12px; }
  .steps-section, .faq-section { padding: 88px 0; }
  .step-card { min-height: 260px; padding: 24px; }
  .receive-section { padding: 38px 24px; border-radius: 24px; }
  .embed-section { padding-top: 88px; }
  .code-card { border-radius: 18px; }
  .code-card pre { padding: 21px 17px; font-size: .7rem; }
  .copy-status, .code-note { padding-left: 17px; padding-right: 17px; }
  .site-footer { grid-template-columns: 1fr auto; gap: 22px; padding: 32px 0; }
  .site-footer p { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}