:root {
  --bg: #050505;
  --bg-soft: #0d0d0d;
  --border: #1e1e1e;
  --text: #f2f2f2;
  --muted: #8f8f8f;
  --accent: #d4f24b;
  --accent-glow: rgba(212, 242, 75, 0.25);
  --radius: 14px;
  --font: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Corner links (top right) ---------- */

.corner-links {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  color: var(--accent);
  background: rgba(5, 5, 5, 0.7);
  backdrop-filter: blur(8px);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.icon-link svg {
  width: 17px;
  height: 17px;
}

.icon-link:hover {
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-1px);
}

.bridge-corner {
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 9px 20px;
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  background: rgba(5, 5, 5, 0.7);
  backdrop-filter: blur(8px);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.bridge-corner:hover {
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-1px);
}

/* ---------- Hero ---------- */

.hero {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 80px;
  text-align: center;
}

.hero-logo-text {
  font-size: clamp(2.4rem, 8.5vw, 5.2rem);
  white-space: nowrap;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--accent);
  text-shadow:
    0 0 12px rgba(212, 242, 75, 0.9),
    0 0 40px rgba(212, 242, 75, 0.5),
    0 0 90px rgba(212, 242, 75, 0.3);
  margin-bottom: 28px;
  user-select: none;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 34px;
}

.accent {
  color: var(--accent);
  text-shadow: 0 0 30px var(--accent-glow);
}


.btn {
  display: inline-block;
  background: var(--accent);
  color: #0a0a0a;
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 34px;
  border: none;
  border-radius: 999px;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 0 30px var(--accent-glow);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 45px var(--accent-glow);
}

.btn:disabled {
  opacity: 0.55;
  cursor: wait;
  transform: none;
}

.hero-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  box-shadow: none;
}

.btn-outline:hover {
  box-shadow: 0 0 30px var(--accent-glow);
}

/* ---------- Panel: how it works + checker side by side ---------- */

.panel {
  max-width: 1000px;
  margin: 0 auto;
  padding: 30px 24px 110px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  align-items: start;
}

.how h2,
.checker h2 {
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 26px;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.step-num {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent);
  color: #0a0a0a;
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 18px var(--accent-glow);
}

.step h3 {
  font-size: 1.05rem;
  margin: 4px 0 3px;
}

.step p {
  color: var(--muted);
  font-size: 0.9rem;
}

/* ---------- Checker ---------- */

.checker {
  position: relative;
  background: linear-gradient(180deg, #111311 0%, #0a0a0a 100%);
  border: 1px solid #232323;
  border-radius: 20px;
  padding: 34px 32px 36px;
  overflow: hidden;
}

/* soft glow bleeding in from the top */
.checker::before {
  content: "";
  position: absolute;
  top: -70px;
  left: 50%;
  transform: translateX(-50%);
  width: 340px;
  height: 140px;
  background: radial-gradient(closest-side, rgba(212, 242, 75, 0.14), transparent);
  pointer-events: none;
}

/* thin accent line along the top edge */
.checker::after {
  content: "";
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212, 242, 75, 0.55), transparent);
}

/* monochrome USDC watermark, tilted and clipped by the card's right edge */
.usdc-watermark {
  position: absolute;
  top: 50%;
  right: -70px;
  width: 250px;
  height: 250px;
  transform: translateY(-50%) rotate(14deg);
  color: #262a1e;
  pointer-events: none;
}

/* keep card content above the watermark */
.checker > :not(.usdc-watermark) {
  position: relative;
  z-index: 1;
}

.checker-sub {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.check-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg);
  border: 1px solid #2a2a2a;
  border-radius: 999px;
  padding: 5px 5px 5px 0;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.check-bar:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 24px rgba(212, 242, 75, 0.12);
}

#address-input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9rem;
  padding: 11px 20px;
  outline: none;
  min-width: 0;
}

#address-input::placeholder {
  color: #555;
}

.check-btn {
  padding: 11px 26px;
  font-size: 0.92rem;
  box-shadow: none;
}

.error {
  color: #ff6b6b;
  font-size: 0.88rem;
  margin-top: 16px;
}

.error[hidden],
.results[hidden],
.checked-address[hidden] {
  display: none;
}

.results {
  display: flex;
  align-items: stretch;
  justify-content: space-around;
  gap: 24px;
  margin-top: 30px;
  padding-top: 26px;
  border-top: 1px solid #1c1c1c;
  animation: rise 0.35s ease both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: center;
}

.stat-divider {
  width: 1px;
  background: linear-gradient(180deg, transparent, #2a2a2a, transparent);
}

.result-label {
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.result-value {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--text);
  word-break: break-all;
  line-height: 1.2;
}

.result-value.glow {
  color: var(--accent);
  text-shadow: 0 0 24px var(--accent-glow);
}

.checked-address {
  margin-top: 22px;
  color: #5c5c5c;
  font-size: 0.75rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  word-break: break-all;
  text-align: center;
}

/* ---------- Footer ---------- */

footer {
  border-top: 1px solid var(--border);
  padding: 44px 24px 56px;
  text-align: center;
}

.footer-brand {
  color: var(--accent);
  font-weight: 700;
}

.footer-name {
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  margin-bottom: 10px;
}

.footer-meta {
  color: var(--muted);
  font-size: 0.85rem;
}

.footer-meta a {
  color: var(--muted);
}

.footer-contract {
  color: #555;
  font-size: 0.75rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  margin-top: 8px;
  word-break: break-all;
}

.footer-disclaimer {
  color: #555;
  font-size: 0.75rem;
  max-width: 520px;
  margin: 18px auto 0;
}

/* ---------- Mobile ---------- */

@media (max-width: 820px) {
  .panel {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .checker {
    padding: 28px 20px 30px;
  }

  .check-btn {
    padding: 11px 20px;
  }

  .results {
    flex-direction: column;
    gap: 20px;
  }

  .stat-divider {
    width: auto;
    height: 1px;
    background: linear-gradient(90deg, transparent, #2a2a2a, transparent);
  }

  .hero {
    padding-top: 72px;
  }

  .corner-links {
    top: 14px;
    right: 14px;
    gap: 8px;
  }

  .icon-link {
    width: 34px;
    height: 34px;
  }

  .bridge-corner {
    padding: 8px 16px;
    font-size: 0.8rem;
  }
}