:root {
  --bg: #071a1c;
  --bg-2: #0c2a2e;
  --ink: #e8f6f4;
  --muted: #8fb3ae;
  --line: rgba(120, 210, 196, 0.18);
  --accent: #2fe0c4;
  --accent-2: #f0b429;
  --danger: #ff6b6b;
  --panel: rgba(10, 36, 40, 0.82);
  --radius: 14px;
  --font-display: "Syne", "PingFang SC", "Helvetica Neue", sans-serif;
  --font-body: "IBM Plex Sans", "PingFang SC", "Helvetica Neue", sans-serif;
}

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

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(47, 224, 196, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 224, 196, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 75%);
  pointer-events: none;
  z-index: 0;
}

.bg-glow {
  position: fixed;
  width: 60vw;
  height: 40vh;
  top: -10vh;
  left: 20vw;
  background: radial-gradient(circle, rgba(47, 224, 196, 0.22), transparent 65%);
  filter: blur(12px);
  pointer-events: none;
  z-index: 0;
}

.topbar,
.shell,
.foot {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.25rem 0.5rem;
  max-width: 720px;
  margin: 0 auto;
}

.brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-decoration: none;
}

.flash-lede {
  margin: 0 0 1rem;
  font-size: 0.92rem;
}

.flash-steps {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.25rem;
  font-size: 0.88rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  white-space: nowrap;
}

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

.nav a.is-current {
  color: var(--ink);
  background: rgba(47, 224, 196, 0.12);
}

.nav a.nav-claim {
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
  color: #2a1c04;
  font-weight: 600;
  background: var(--accent-2);
  box-shadow: 0 0 0 1px rgba(240, 180, 41, 0.4), 0 4px 16px rgba(240, 180, 41, 0.28);
  animation: claim-glow 3.2s ease-in-out infinite;
}

.nav a.nav-claim:hover {
  color: #1a1102;
  filter: brightness(1.05);
}

.nav a.nav-claim.is-current {
  animation: none;
  box-shadow: none;
}

.nav a.nav-flash {
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
  color: #042a18;
  font-weight: 600;
  background: #3dcc6f;
  box-shadow: 0 0 0 1px rgba(61, 204, 111, 0.4), 0 4px 16px rgba(61, 204, 111, 0.28);
  animation: flash-glow 3.2s ease-in-out infinite;
}

.nav a.nav-flash:hover {
  color: #02140c;
  filter: brightness(1.05);
}

.nav a.nav-flash.is-current {
  animation: none;
  box-shadow: none;
  background: #3dcc6f;
  color: #042a18;
}

.nav-flash .bolt,
.nav-claim .gift {
  font-size: 0.95em;
  line-height: 1;
}

.shell {
  max-width: 720px;
  margin: 0 auto;
  padding: 0.5rem 1.25rem 3rem;
}

.hero {
  padding: 1.5rem 0 1.25rem;
}

.eyebrow {
  margin: 0 0 0.6rem;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1,
.bridge h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 8vw, 3.6rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin: 0 0 0.9rem;
}

.lede {
  margin: 0;
  color: var(--muted);
  max-width: 34rem;
  font-size: 1.02rem;
}

.promo {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: baseline;
  padding: 0.85rem 1rem;
  border-left: 3px solid var(--accent-2);
  background: linear-gradient(90deg, rgba(240, 180, 41, 0.12), transparent);
  animation: promo-in 0.6s ease both;
}

.promo strong {
  color: var(--accent-2);
  font-family: var(--font-display);
}

.page-claim .shell {
  max-width: 420px;
}

.page-claim .panel {
  margin-top: 2rem;
}

.page-claim .panel-title {
  font-size: 1.35rem;
}

.panel-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.pkgs {
  display: grid;
  gap: 0.65rem;
}

.pkg {
  text-align: left;
  width: 100%;
  border: 1px solid var(--line);
  background: transparent;
  color: inherit;
  border-radius: 12px;
  padding: 0.85rem 1rem;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.pkg:hover {
  border-color: rgba(47, 224, 196, 0.45);
}

.pkg.active {
  border-color: var(--accent);
  background: rgba(47, 224, 196, 0.08);
  transform: translateY(-1px);
}

.pkg-title {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-weight: 600;
}

.pkg-title em {
  font-style: normal;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.pkg-desc {
  margin: 0.35rem 0 0;
  font-size: 0.86rem;
  color: var(--muted);
}

.pkg-custom {
  display: grid;
  gap: 0;
}

.pkg-extra {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  margin: 0;
  pointer-events: none;
  transition: grid-template-rows 0.28s ease, opacity 0.2s ease, margin 0.28s ease;
}

.pkg-extra.is-open {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 0.55rem;
  pointer-events: auto;
}

.pkg-extra-inner {
  min-height: 0;
  overflow: hidden;
}

.custom-qty-field {
  margin-top: 0;
}

.field {
  display: grid;
  gap: 0.45rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.field input {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.25);
  color: var(--ink);
  border-radius: 10px;
  padding: 0.85rem 0.95rem;
  font: inherit;
  font-size: 0.95rem;
  outline: none;
}

.field input:focus {
  border-color: var(--accent);
}

.field-hint {
  font-size: 0.78rem;
  color: var(--muted);
}

.quote {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--line);
}

.quote-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.35rem 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.quote-row strong {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.quote-row.highlight strong {
  color: var(--accent);
  font-size: 1.15rem;
}

.quote-tip {
  margin: 0.55rem 0 0;
  font-size: 0.82rem;
  color: var(--accent-2);
}

.cta,
.ghost {
  font: inherit;
  cursor: pointer;
  border-radius: 999px;
  padding: 0.85rem 1.2rem;
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s;
}

.cta {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin-top: 1.1rem;
  border: 0;
  background: var(--accent);
  color: #042a28;
  font-weight: 700;
  text-decoration: none;
}

.cta.claim {
  background: var(--accent-2);
  color: #2a1c04;
  margin-top: 0.85rem;
}

.cta.claim:hover {
  transform: translateY(-1px);
}

.claim-msg {
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
  line-height: 1.5;
  padding: 0.75rem 0.9rem;
  border-left: 3px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
}

.claim-msg.miss,
.claim-msg.already {
  border-left-color: var(--accent-2);
  color: var(--ink);
}

.claim-msg.err {
  border-left-color: var(--danger);
  color: var(--danger);
}

.cta:hover,
.ghost:hover {
  transform: translateY(-1px);
}

a.cta:visited {
  color: #042a28;
}

.cta:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.ghost {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font-size: 0.82rem;
  padding: 0.4rem 0.7rem;
}

.ghost.full {
  width: 100%;
  margin-top: 0.65rem;
  padding: 0.75rem;
}

.err {
  color: var(--danger);
  font-size: 0.88rem;
  margin: 0.75rem 0 0;
}

.pay {
  text-align: center;
}

.pay-warn {
  color: var(--muted);
  font-size: 0.9rem;
}

.pay img {
  margin: 0.5rem auto;
  border-radius: 12px;
  background: #fff;
  padding: 0.5rem;
}

.pay-meta {
  text-align: left;
  margin-top: 0.75rem;
}

.copy-row {
  display: grid;
  grid-template-columns: 5.2rem 1fr auto;
  gap: 0.5rem;
  align-items: center;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.86rem;
}

.copy-row code {
  overflow-wrap: anywhere;
  font-size: 0.8rem;
  color: var(--accent);
}

.status {
  margin: 0.9rem 0 0;
  color: var(--accent);
  font-weight: 600;
}

.done p {
  color: var(--muted);
}

.foot {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.25rem 2rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.bridge-body .bridge {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 3rem;
}

.tip-page {
  padding-top: 1.75rem;
}

.tip-figure {
  margin: 1.25rem auto 0.5rem;
  padding: 0;
  max-width: 22rem;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.25);
}

.tip-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.tip-steps {
  margin-top: 1.25rem;
}

.tip-steps strong {
  color: var(--accent-2);
}

.steps {
  margin: 1.5rem 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.bridge-note {
  margin-top: 1.25rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.text-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

@keyframes promo-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes flash-glow {
  0%,
  100% {
    box-shadow: 0 0 0 1px rgba(61, 204, 111, 0.32), 0 3px 12px rgba(61, 204, 111, 0.22);
  }
  50% {
    box-shadow: 0 0 0 1px rgba(61, 204, 111, 0.55), 0 6px 20px rgba(61, 204, 111, 0.38);
  }
}

@keyframes claim-glow {
  0%,
  100% {
    box-shadow: 0 0 0 1px rgba(240, 180, 41, 0.32), 0 3px 12px rgba(240, 180, 41, 0.22);
  }
  50% {
    box-shadow: 0 0 0 1px rgba(240, 180, 41, 0.55), 0 6px 20px rgba(240, 180, 41, 0.38);
  }
}

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

@media (min-width: 860px) {
  .shell {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 1.25rem;
    align-items: start;
  }

  .page-claim .shell,
  .page-flash .shell {
    display: block;
  }

  .hero {
    grid-column: 1;
    position: sticky;
    top: 1.5rem;
    padding-top: 2.5rem;
  }

  .panel {
    grid-column: 2;
  }

  .page-claim .panel,
  .page-flash .panel {
    grid-column: auto;
  }

  .pay,
  .done {
    grid-column: 2;
  }

  .page-claim .done {
    grid-column: auto;
  }
}