:root {
  --bg: #000000;
  --ink: #e9fff4;
  --muted: #7dcea8;
  --line: rgba(120, 255, 190, 0.28);
  --glow: #5dffb0;
  --hot: #d8ffe9;
  --panel: rgba(4, 18, 12, 0.86);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(900px 520px at 80% 8%, rgba(40, 255, 160, 0.16), transparent 55%),
    radial-gradient(700px 480px at 10% 90%, rgba(0, 180, 110, 0.12), transparent 50%),
    #000;
  color: var(--ink);
  font-family: "Share Tech Mono", "Consolas", monospace;
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: 0.01em;
}
body::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 40;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.18) 0 1px,
    transparent 1px 4px
  );
  mix-blend-mode: multiply;
}
a { color: inherit; }
button, input, select { font: inherit; color: inherit; }
img { max-width: 100%; }

.frame {
  position: relative;
  margin: 14px;
  min-height: 0;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(8, 28, 18, 0.55), rgba(0, 0, 0, 0.2) 40%, #000),
    #000;
  box-shadow: 0 0 80px rgba(40, 255, 150, 0.08), inset 0 0 80px rgba(40, 255, 150, 0.04);
}
.frame::before, .frame::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid var(--glow);
  z-index: 3;
}
.frame::before { top: 8px; left: 8px; border-right: 0; border-bottom: 0; }
.frame::after { top: 8px; right: 8px; border-left: 0; border-bottom: 0; }

.nav {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 26px 32px 0;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: "Silkscreen", monospace;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-shadow: 0 0 12px rgba(90, 255, 170, 0.8);
}
.logo-mark {
  width: 22px;
  height: 14px;
  background:
    linear-gradient(#e0b44a, #e0b44a) 3px 50% / 7px 5px no-repeat,
    #f4fff8;
  box-shadow: 0 0 12px rgba(90, 255, 170, 0.7);
}
.nav-links { display: flex; gap: 22px; }
.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-family: "Silkscreen", monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
}
.nav-links a:hover { color: var(--hot); text-shadow: 0 0 10px var(--glow); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--glow);
  cursor: pointer;
  text-decoration: none;
  background: transparent;
  color: var(--hot);
  padding: 14px 22px;
  font-family: "Silkscreen", monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: 0 0 18px rgba(80, 255, 170, 0.25), inset 0 0 18px rgba(80, 255, 170, 0.08);
  transition: background 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover {
  background: rgba(80, 255, 170, 0.12);
  box-shadow: 0 0 28px rgba(80, 255, 170, 0.45);
}
.btn:disabled, .btn[aria-disabled="true"] { opacity: 0.4; cursor: not-allowed; }
.btn.small { padding: 10px 14px; font-size: 10px; }
.btn.ghost { box-shadow: none; }

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 12px;
  align-items: center;
  padding: 36px 48px 64px;
  min-height: 620px;
}
.eyebrow {
  margin: 0 0 14px;
  color: var(--glow);
  font-family: "Silkscreen", monospace;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
h1, .display, .section h2, .panel h1, .summary h2 {
  font-family: "Silkscreen", monospace;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
h1, .display {
  margin: 0;
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1.05;
  color: #f3fff8;
  text-shadow:
    0 0 8px rgba(180, 255, 220, 0.9),
    0 0 28px rgba(60, 255, 160, 0.75),
    0 0 70px rgba(0, 255, 140, 0.35);
}
.lede {
  max-width: 460px;
  margin: 22px 0 28px;
  color: var(--muted);
  font-size: 18px;
}
.hero-art { position: relative; display: grid; place-items: center; }
.hero-art::before {
  content: "";
  position: absolute;
  width: 70%;
  height: 55%;
  background: radial-gradient(circle, rgba(70, 255, 170, 0.55), transparent 68%);
  filter: blur(18px);
}
.hero-card, .plan-shot, .summary-shot {
  position: relative;
  width: min(680px, 100%);
  mix-blend-mode: screen;
  animation: float 6.5s ease-in-out infinite;
}
.plan-shot, .summary-shot { width: 100%; animation: none; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.wrap { width: min(1120px, calc(100% - 36px)); margin: 0 auto; }
.section { padding: 84px 0 10px; }
.section h2 {
  text-align: center;
  margin: 0;
  color: var(--hot);
  font-size: clamp(22px, 3vw, 34px);
  text-shadow: 0 0 16px rgba(80, 255, 170, 0.7);
}
.section-intro {
  text-align: center;
  color: var(--muted);
  max-width: 640px;
  margin: 16px auto 0;
}

.steps, .plan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 36px;
}
.step, .plan, .summary, .panel, .pay-card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 22px;
  box-shadow: inset 0 0 40px rgba(40, 255, 150, 0.04);
}
.step::before, .plan::before, .panel::before, .summary::before, .pay-card::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 6px;
  width: 10px;
  height: 10px;
  border-top: 2px solid var(--glow);
  border-left: 2px solid var(--glow);
}
.step-no {
  color: var(--glow);
  font-family: "Silkscreen", monospace;
  font-size: 11px;
}
.step h3, .plan h3 {
  margin: 12px 0 8px;
  font-family: "Silkscreen", monospace;
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 0.06em;
}
.step p, .plan .desc { margin: 0; color: var(--muted); }
.plan { display: flex; flex-direction: column; }
.plan.featured {
  border-color: var(--glow);
  box-shadow: 0 0 28px rgba(80, 255, 170, 0.22), inset 0 0 40px rgba(80, 255, 170, 0.06);
}
.price-xl {
  margin: 6px 0 10px;
  font-family: "Silkscreen", monospace;
  font-size: 28px;
  color: var(--hot);
  text-shadow: 0 0 14px rgba(80, 255, 170, 0.8);
}
.plan ul { margin: 8px 0 18px; padding: 0; list-style: none; flex: 1; }
.plan li { padding: 7px 0 7px 16px; position: relative; color: #c8ffe4; }
.plan li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  background: var(--glow);
  box-shadow: 0 0 8px var(--glow);
}
.plan .btn { width: 100%; margin-top: auto; }
.badge {
  align-self: flex-start;
  margin-bottom: 8px;
  padding: 4px 8px;
  border: 1px solid var(--line);
  color: var(--glow);
  font-family: "Silkscreen", monospace;
  font-size: 9px;
}

.faq { margin-top: 22px; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item button {
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  background: none;
  border: 0;
  padding: 20px 0;
  cursor: pointer;
  font-family: "Silkscreen", monospace;
  font-size: 13px;
}
.faq-item button span:last-child { color: var(--glow); }
.answer { display: none; margin: 0 0 18px; color: var(--muted); max-width: 70ch; }
.faq-item.open .answer { display: block; }
.site-foot { padding: 42px 0 64px; text-align: center; color: var(--muted); }

.checkout { padding: 28px 0 80px; }
.checkout-grid {
  width: min(1120px, calc(100% - 28px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 16px;
  align-items: start;
}
.summary { position: sticky; top: 14px; }
.panel h1 { margin: 0 0 8px; font-size: 28px; text-shadow: 0 0 16px rgba(80, 255, 170, 0.65); }
.muted { color: var(--muted); }
.summary-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px dashed rgba(120, 255, 190, 0.28);
}
.switch { display: flex; gap: 8px; margin: 16px 0; }
.switch button, .carrier, .method, .coin, .point {
  background: #03140c;
  border: 1px solid var(--line);
  color: var(--ink);
  cursor: pointer;
  text-align: left;
}
.switch button { flex: 1; padding: 12px 8px; font-family: "Silkscreen", monospace; font-size: 11px; }
.switch button.on, .carrier.on, .method.on, .coin.on, .point.on {
  border-color: var(--glow);
  box-shadow: 0 0 16px rgba(80, 255, 170, 0.28);
  color: var(--hot);
}
.fields { display: grid; gap: 14px; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field label, .block-title {
  font-family: "Silkscreen", monospace;
  letter-spacing: 0.06em;
}
.field label { display: block; margin-bottom: 6px; color: var(--glow); font-size: 10px; }
.field input, .field select {
  width: 100%;
  background: #020806;
  border: 1px solid var(--line);
  padding: 13px 12px;
  outline: none;
}
.field input:focus, .field select:focus { border-color: var(--glow); box-shadow: 0 0 12px rgba(80, 255, 170, 0.25); }
.hint { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.block-title { margin: 28px 0 8px; font-size: 14px; color: var(--hot); }
.carriers { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.carrier { padding: 14px; }
.carrier strong, .coin strong { display: block; font-family: "Silkscreen", monospace; font-size: 12px; font-weight: 400; }
.carrier span, .coin small { color: var(--muted); }
.points { display: grid; gap: 8px; margin-top: 12px; }
.point {
  width: 100%;
  display: grid;
  grid-template-columns: 16px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px;
}
.point .mark { width: 12px; height: 12px; border: 1px solid var(--glow); }
.point.on .mark { background: var(--glow); box-shadow: 0 0 8px var(--glow); }
.point b { display: block; font-weight: 400; }
.point .meta, .kind { color: var(--muted); }
.kind { font-family: "Silkscreen", monospace; font-size: 9px; text-transform: uppercase; color: var(--glow); }

.method {
  width: 100%;
  margin-top: 8px;
  padding: 16px;
  font-family: "Silkscreen", monospace;
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.coin-menu {
  display: none;
  margin-top: 8px;
  border: 1px solid var(--line);
  background: #010805;
  max-height: 360px;
  overflow: auto;
}
.coin-menu.open { display: block; }
.coin {
  width: 100%;
  display: block;
  padding: 12px 14px;
  border: 0;
  border-bottom: 1px solid rgba(120, 255, 190, 0.16);
  background: transparent;
}
.coin small { display: block; margin-top: 4px; }
.coin:hover:not(:disabled) { background: rgba(80, 255, 170, 0.08); }
.coin:disabled { opacity: 0.45; cursor: not-allowed; }
.form-error { min-height: 1.2em; margin: 14px 0; color: #ffb3c7; }

.pay { width: min(760px, calc(100% - 28px)); margin: 28px auto 80px; }
.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  padding: 6px 10px;
  color: var(--glow);
  font-family: "Silkscreen", monospace;
  font-size: 10px;
}
.status i { width: 8px; height: 8px; background: var(--glow); display: block; box-shadow: 0 0 8px var(--glow); }
.status.wait i { animation: pulse 1.3s ease-in-out infinite; }
.status.ok { color: var(--hot); }
.status.dead { color: #ffb3c7; border-color: rgba(255, 179, 199, 0.4); }
.status.dead i { background: #ff8aa8; box-shadow: none; animation: none; }
@keyframes pulse { 50% { opacity: 0.3; } }
.amount {
  margin: 12px 0 4px;
  font-family: "Silkscreen", monospace;
  font-size: clamp(22px, 4vw, 36px);
  text-shadow: 0 0 16px rgba(80, 255, 170, 0.75);
}
.copy-row { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
.copy-row code {
  flex: 1;
  overflow-wrap: anywhere;
  background: #020806;
  border: 1px solid var(--line);
  padding: 12px;
}
.qr { width: 168px; height: 168px; background: #fff; padding: 8px; }
.pay-grid { display: grid; grid-template-columns: 1fr 168px; gap: 16px; align-items: start; }

@media (max-width: 900px) {
  .frame { margin: 8px; min-height: 0; }
  .hero-grid { grid-template-columns: 1fr; min-height: 0; padding: 24px 16px 36px; }
  .nav { flex-wrap: wrap; padding: 22px 16px 0; }
  .nav-links { width: 100%; gap: 14px; }
  .steps, .plan-grid, .checkout-grid, .row-2, .carriers, .pay-grid { grid-template-columns: 1fr; }
  .summary { position: static; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-card, .status.wait i { animation: none; }
  html { scroll-behavior: auto; }
}