:root {
  --ink: #f8fbff;
  --muted: rgba(230, 236, 255, 0.78);
  --card: rgba(255, 255, 255, 0.1);
  --card-border: rgba(255, 255, 255, 0.2);
  --shadow: 0 30px 70px rgba(8, 10, 40, 0.35);
  --space-0: 0.55rem;
  --space-1: calc(var(--space-0) * 1.618);
  --space-2: calc(var(--space-1) * 1.618);
  --space-3: calc(var(--space-2) * 1.618);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Space Grotesk", "IBM Plex Sans", "Noto Sans SC", "Source Han Sans SC",
    "Microsoft YaHei", sans-serif;
  background: linear-gradient(135deg, #a855f7 0%, #c026d3 25%, #e11d48 50%, #f43f5e 75%, #fb7185 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 18% 12%, rgba(255, 255, 255, 0.12), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(255, 255, 255, 0.08), transparent 45%);
  opacity: 0.5;
  pointer-events: none;
  z-index: -1;
}

.page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) 1.25rem calc(var(--space-3) * 1.1);
}

.shell {
  width: min(860px, 100%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.72rem;
  letter-spacing: 0.48em;
  color: rgba(226, 232, 240, 0.65);
}

.brand-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(248, 250, 252, 0.35), transparent);
}

.card {
  margin-top: var(--space-1);
  background: var(--card);
  backdrop-filter: blur(16px);
  border-radius: 28px;
  padding: var(--space-2) calc(var(--space-2) * 1.1) calc(var(--space-2) * 0.9);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  animation: floatIn 0.8s ease forwards;
  border: 1px solid var(--card-border);
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.32) 0%, rgba(255, 255, 255, 0) 60%);
  opacity: 0.85;
  pointer-events: none;
}

.card::before {
  content: "";
  position: absolute;
  inset: auto -20% -30% -20%;
  height: 60%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.14), transparent 70%);
  opacity: 0.7;
  pointer-events: none;
}

.hero {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-0);
}

.hero-main {
  display: grid;
  align-items: center;
  justify-items: center;
  text-align: center;
}

.hero-grid {
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  align-items: center;
  gap: var(--space-1);
}

.hero-art {
  display: flex;
  justify-content: center;
  align-items: center;
}

.token-card {
  width: min(240px, 100%);
  aspect-ratio: 1;
  border-radius: 26px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.2), rgba(88, 46, 160, 0.35));
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  box-shadow: inset 0 0 30px rgba(255, 255, 255, 0.12), 0 20px 50px rgba(18, 18, 48, 0.35);
  position: relative;
  overflow: hidden;
  padding: 1rem;
}

.token-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.22), transparent 46%),
    radial-gradient(circle at 80% 80%, rgba(240, 104, 45, 0.25), transparent 55%);
  mix-blend-mode: screen;
  pointer-events: none;
}

.token-badge {
  width: 64%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.45), rgba(44, 28, 96, 0.85));
  border: 2px solid rgba(255, 255, 255, 0.35);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.4);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.6rem;
  gap: 0.25rem;
}

.token-title {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.token-subtitle {
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.cert-domain {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--ink);
  text-align: center;
  line-height: 1.35;
  position: relative;
  z-index: 1;
  overflow-wrap: anywhere;
}

.cert-text {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #ffffff;
  text-align: center;
  line-height: 1.3;
  position: relative;
  z-index: 1;
}

.status-display {
  margin: 0;
  font-size: clamp(2.1rem, 2.2vw + 1.2rem, 3rem);
  letter-spacing: -0.015em;
  font-weight: 700;
}

.status-display.status-valid {
  color: #e6ffef;
  text-shadow: 0 12px 30px rgba(16, 185, 129, 0.35);
}

.status-display.status-expired {
  color: #fecdd3;
  text-shadow: 0 12px 30px rgba(244, 63, 94, 0.35);
}

.status-display.status-unknown {
  color: #fde68a;
  text-shadow: 0 12px 30px rgba(251, 191, 36, 0.35);
}

.title {
  font-size: clamp(1.9rem, 1.8vw + 1.2rem, 2.6rem);
  letter-spacing: -0.02em;
  margin: 0;
  text-shadow: 0 6px 18px rgba(18, 12, 70, 0.35);
}

.lead {
  margin: 0;
  font-size: 1rem;
  color: var(--muted);
}

.brand-accent {
  background: linear-gradient(90deg, #cfe0ff, #f08cd7, #ff7a8a, #ff7a00);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

.panel {
  margin-top: var(--space-1);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-0);
}

.meta-row {
  display: grid;
  grid-template-columns: minmax(100px, 140px) 1fr;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  animation: fadeUp 0.6s ease forwards;
  opacity: 0;
}

.meta-row:nth-child(1) { animation-delay: 80ms; }
.meta-row:nth-child(2) { animation-delay: 160ms; }
.meta-row:nth-child(3) { animation-delay: 240ms; }
.meta-row:nth-child(4) { animation-delay: 320ms; }

.meta-label {
  font-size: 0.78rem;
  color: rgba(226, 232, 240, 0.65);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.meta-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  word-break: break-all;
}

.lookup {
  margin-top: var(--space-0);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-0);
}

.input {
  flex: 1 1 240px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  outline: none;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
  font-family: "IBM Plex Mono", "JetBrains Mono", "Fira Code", monospace;
  background: rgba(255, 255, 255, 0.12);
  color: var(--ink);
}

.input::placeholder {
  color: rgba(226, 232, 240, 0.5);
}

.input:focus {
  border-color: rgba(138, 166, 255, 0.9);
  box-shadow: 0 0 0 3px rgba(138, 166, 255, 0.25);
}

.button {
  border: none;
  border-radius: 999px;
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  background: linear-gradient(135deg, #4f66ff, #8b5cf6, #d946ef, #ff4b5c, #ff7a00);
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 10px 24px rgba(79, 86, 245, 0.3);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 46px rgba(255, 77, 120, 0.35);
}

.mono {
  font-family: "IBM Plex Mono", "JetBrains Mono", "Fira Code", monospace;
  font-weight: 600;
}

.footnote {
  margin-top: var(--space-1);
  font-size: 0.74rem;
  color: rgba(226, 232, 240, 0.65);
  letter-spacing: 0.1em;
}

.footer {
  margin-top: var(--space-1);
  text-align: center;
  font-size: 0.75rem;
  color: rgba(226, 232, 240, 0.6);
  letter-spacing: 0.04em;
}

.footer a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer a:hover {
  color: #fff;
  text-decoration: underline;
}

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

@media (max-width: 640px) {
  .card {
    padding: var(--space-1) 1.35rem;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-art {
    order: -1;
  }

  .meta-row {
    grid-template-columns: 1fr;
  }

  .meta-label {
    text-transform: none;
    letter-spacing: 0.04em;
  }
}

@keyframes floatIn {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

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