:root {
  --bg-0: #08060c;
  --bg-1: #0f0b18;
  --card: rgba(255,255,255,0.04);
  --card-border: rgba(255,255,255,0.09);
  --purple: #8751a1;
  --purple-bright: #b57fd4;
  --text: #f2eef7;
  --text-dim: #a89bb8;
  --green: #4ade80;
  --red: #f87171;
  --radius: 16px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

#top, #faq { scroll-margin-top: 24px; }

html, body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg-0);
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 16px 60px;
  position: relative;
  overflow-x: hidden;
}

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60% 50% at 50% -5%, rgba(135,81,161,0.35), transparent 60%),
    radial-gradient(45% 40% at 85% 15%, rgba(135,81,161,0.18), transparent 60%),
    radial-gradient(45% 40% at 10% 85%, rgba(135,81,161,0.14), transparent 60%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1));
}

nav {
  width: 100%;
  max-width: 620px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 4px 40px;
}

nav img { width: 28px; height: 28px; }

nav .brand {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.2px;
}

nav .brand span { color: var(--purple-bright); }

nav .brand-link { display: flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; }

.nav-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 600;
  transition: color .15s ease;
}
.nav-links a:hover,
.nav-links a.active { color: var(--text); }

.badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-dim);
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: var(--card);
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
}
.dot.off { background: var(--red); box-shadow: 0 0 6px var(--red); }

main {
  width: 100%;
  max-width: 620px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

main > .hero,
main > .card,
footer {
  width: 100%;
  max-width: 480px;
}

.hero {
  text-align: center;
  margin-bottom: 26px;
}

h1 {
  font-size: 30px;
  margin: 0 0 8px;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #fff 30%, var(--purple-bright));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  margin: 0;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.5;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}

.field-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 8px;
  display: block;
}

.input-row {
  display: flex;
  gap: 10px;
  align-items: center;
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 4px 4px 4px 16px;
  transition: border-color .15s ease;
}

.input-row:focus-within {
  border-color: var(--purple);
}

.input-row input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 15px;
  font-family: "SF Mono", Consolas, monospace;
  padding: 12px 0;
  min-width: 0;
}

.input-row input::placeholder { color: #4a4256; }

.paste-btn {
  flex-shrink: 0;
  background: rgba(255,255,255,0.06);
  border: none;
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.paste-btn:hover { background: rgba(255,255,255,0.12); color: var(--text); }

.amount-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 16px 0 20px;
  padding: 12px 14px;
  background: rgba(135,81,161,0.08);
  border: 1px solid rgba(135,81,161,0.25);
  border-radius: 10px;
  font-size: 13px;
  color: var(--text-dim);
}

.amount-row b { color: var(--text); font-weight: 700; }

button.primary {
  width: 100%;
  padding: 15px;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--purple), #6b3d84);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  letter-spacing: 0.2px;
  transition: transform .12s ease, box-shadow .12s ease, opacity .12s ease;
  box-shadow: 0 8px 24px rgba(135,81,161,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

button.primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 10px 28px rgba(135,81,161,0.5);
}

button.primary:active:not(:disabled) { transform: translateY(0); }

button.primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.spinner {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  animation: spin .7s linear infinite;
  display: none;
}

button.primary.loading .spinner { display: inline-block; }
button.primary.loading .btn-text { display: none; }

@keyframes spin { to { transform: rotate(360deg); } }

.status {
  margin-top: 16px;
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 13.5px;
  line-height: 1.55;
  display: none;
  animation: rise .2s ease;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.status.show { display: block; }
.status.error {
  background: rgba(248,113,113,0.08);
  border: 1px solid rgba(248,113,113,0.28);
  color: #ffb4b4;
}
.status.success {
  background: rgba(74,222,128,0.08);
  border: 1px solid rgba(74,222,128,0.28);
  color: #b8f5cc;
}
.status.info {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--card-border);
  color: var(--text-dim);
}

.status a {
  color: var(--purple-bright);
  font-family: "SF Mono", Consolas, monospace;
  word-break: break-all;
}

.balance-pill {
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  font-size: 13.5px;
  display: none;
}

.balance-pill.show { display: flex; }
.balance-pill .label { color: var(--text-dim); }
.balance-pill .value { font-weight: 700; font-family: "SF Mono", Consolas, monospace; }

footer {
  margin-top: 32px;
  text-align: center;
  font-size: 12.5px;
  color: #665c78;
}

footer a { color: var(--text-dim); text-decoration: none; }
footer a:hover { color: var(--purple-bright); }

.links {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 10px;
}

.faq {
  width: 100%;
  max-width: 620px;
}

.faq h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 16px 4px;
  letter-spacing: -0.3px;
}

.faq-list {
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  backdrop-filter: blur(20px);
}

.faq-item + .faq-item { border-top: 1px solid var(--card-border); }

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 14.5px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
}

.faq-q:hover { background: rgba(255,255,255,0.03); }

.faq-q .icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  position: relative;
}

.faq-q .icon::before,
.faq-q .icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--text-dim);
  transform: translate(-50%, -50%);
  transition: transform .2s ease, opacity .2s ease;
}
.faq-q .icon::before { width: 12px; height: 2px; }
.faq-q .icon::after { width: 2px; height: 12px; }

.faq-item.open .faq-q .icon::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }
.faq-item.open .faq-q .icon::before { background: var(--purple-bright); }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .25s ease;
}

.faq-a-inner {
  padding: 0 20px 20px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-dim);
}

.faq-a-inner a { color: var(--purple-bright); text-decoration: none; }
.faq-a-inner a:hover { text-decoration: underline; }

.page-hero {
  text-align: center;
  margin-bottom: 32px;
  max-width: 620px;
}