:root {
  --ink: #071a18;
  --deep: #0c2f2b;
  --teal: #14665c;
  --mint: #c8ebe3;
  --foam: #eef8f5;
  --amber: #e8a54b;
  --amber-deep: #c47f22;
  --text: #f4fbf8;
  --muted: rgba(244, 251, 248, 0.72);
  --line: rgba(200, 235, 227, 0.18);
  --font-display: "Syne", sans-serif;
  --font-body: "Figtree", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--ink);
  line-height: 1.55;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(120% 80% at 10% -10%, #1a5c52 0%, transparent 55%),
    radial-gradient(90% 70% at 100% 0%, #163d52 0%, transparent 50%),
    linear-gradient(165deg, #061412 0%, #0a2421 45%, #081c28 100%);
}

.atmosphere__wash {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 0%, rgba(7, 26, 24, 0.35) 70%, var(--ink) 100%);
}

.atmosphere__grid {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(200, 235, 227, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200, 235, 227, 0.08) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 20%, transparent 75%);
  animation: grid-drift 28s linear infinite;
}

.atmosphere__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.35;
}

.atmosphere__glow--a {
  width: 42vw;
  height: 42vw;
  top: 8%;
  left: -8%;
  background: #1f8f7d;
  animation: float-a 16s var(--ease) infinite alternate;
}

.atmosphere__glow--b {
  width: 36vw;
  height: 36vw;
  top: 18%;
  right: -10%;
  background: #c47f22;
  opacity: 0.18;
  animation: float-b 18s var(--ease) infinite alternate;
}

@keyframes grid-drift {
  from { transform: translateY(0); }
  to { transform: translateY(72px); }
}

@keyframes float-a {
  from { transform: translate(0, 0); }
  to { transform: translate(4%, 6%); }
}

@keyframes float-b {
  from { transform: translate(0, 0); }
  to { transform: translate(-5%, 8%); }
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem clamp(1.25rem, 4vw, 3rem);
  position: relative;
  z-index: 2;
}

.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.nav a:hover {
  color: var(--text);
}

.nav__cta {
  color: var(--ink) !important;
  background: var(--mint);
  padding: 0.45rem 0.9rem;
  border-radius: 0.35rem;
  font-weight: 600;
}

.nav__cta:hover {
  background: #fff;
}

.hero {
  min-height: calc(100svh - 4.5rem);
  display: grid;
  align-content: center;
  gap: clamp(2.5rem, 6vw, 4rem);
  padding: clamp(2rem, 6vw, 4rem) clamp(1.25rem, 4vw, 3rem) 4rem;
}

.hero__copy {
  max-width: 38rem;
  animation: rise 0.9s var(--ease) both;
}

.brand-mark {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.8rem, 9vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
  color: var(--mint);
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.55rem, 3.8vw, 2.35rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  max-width: 16ch;
}

.lede {
  margin: 0 0 1.75rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  max-width: 34ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid transparent;
  border-radius: 0.4rem;
  padding: 0.85rem 1.25rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--amber);
  color: var(--ink);
}

.btn--primary:hover {
  background: #f0b65d;
}

.btn--ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}

.btn--ghost:hover {
  border-color: var(--mint);
  background: rgba(200, 235, 227, 0.08);
}

.btn--small {
  padding: 0.55rem 0.9rem;
  font-size: 0.9rem;
  background: var(--mint);
  color: var(--ink);
  width: fit-content;
}

.btn--small.is-copied {
  background: #7fd4c0;
}

.hero__visual {
  animation: rise 1.1s var(--ease) 0.15s both;
}

.rail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  max-width: 42rem;
}

.rail__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 2.5vw, 1.45rem);
  letter-spacing: -0.03em;
  color: var(--foam);
}

.rail__label--done {
  color: var(--amber);
}

.rail__arrow {
  width: 2.5rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--mint), transparent);
  position: relative;
}

.rail__arrow::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-right: 1px solid var(--mint);
  border-top: 1px solid var(--mint);
  transform: translateY(-50%) rotate(45deg);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section {
  padding: clamp(3.5rem, 8vw, 6rem) clamp(1.25rem, 4vw, 3rem);
  max-width: 1100px;
  margin: 0 auto;
}

.section__intro {
  max-width: 34rem;
  margin-bottom: 2.5rem;
}

.section h2,
.section--final h2 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.section__intro p,
.section--final p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.75rem;
}

@media (min-width: 800px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.step {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.step.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.step__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--amber);
  margin-bottom: 0.85rem;
  letter-spacing: 0.04em;
}

.step h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.step p {
  margin: 0;
  color: var(--muted);
}

.section--pay {
  max-width: 640px;
}

.wallet-tabs {
  display: grid;
  gap: 1.25rem;
}

.tablist {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.5rem;
}

.tab {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  text-align: left;
  padding: 0.85rem 1rem;
  border-radius: 0.35rem;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.tab span {
  display: block;
  margin-top: 0.2rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0;
  opacity: 0.8;
}

.tab:hover {
  color: var(--text);
  background: rgba(200, 235, 227, 0.06);
}

.tab.is-active {
  color: var(--ink);
  background: var(--mint);
  border-color: var(--mint);
}

.tab.is-active span {
  color: rgba(7, 26, 24, 0.7);
}

.wallet-panel {
  display: none;
}

.wallet-panel.is-active {
  display: block;
  animation: rise 0.45s var(--ease) both;
}

.wallet {
  display: grid;
  gap: 1.5rem;
  padding: 1rem 0 0;
  justify-items: stretch;
}

.wallet__qr {
  width: min(100%, 280px);
  margin-inline: auto;
  border-radius: 0.35rem;
  background: #fff;
}

.wallet__meta {
  width: 100%;
}

.wallet h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.network {
  margin: 0 0 1rem;
  color: var(--amber);
  font-size: 0.95rem;
  font-weight: 600;
}

.address-row {
  display: grid;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .address-row {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

.address {
  display: block;
  margin: 0;
  padding: 0.9rem 1rem;
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  font-size: clamp(0.78rem, 2.1vw, 0.95rem);
  line-height: 1.4;
  white-space: nowrap;
  overflow-x: auto;
  color: var(--foam);
  font-variant-ligatures: none;
}

.fine-print {
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.section--final {
  text-align: left;
  border-top: 1px solid var(--line);
}

.section--final .cta-row {
  margin-top: 1.5rem;
}

.site-footer {
  padding: 2rem clamp(1.25rem, 4vw, 3rem) 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.site-footer strong {
  color: var(--text);
  font-family: var(--font-display);
}

.site-footer__links {
  margin: 0;
  display: flex;
  gap: 0.6rem;
  align-items: center;
}

.site-footer a:hover {
  color: var(--mint);
}

@media (max-width: 640px) {
  .nav a:not(.nav__cta) {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 2.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}