:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #101418;
  --muted: #5b6872;
  --line: #dbe2e8;
  --accent: #0e6e6b;
  --accent-soft: #d9f2f1;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Noto Sans", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 20% 20%, #eef7ff 0%, var(--bg) 45%),
    linear-gradient(180deg, #f8fbff, #f4f6f8);
  min-height: 100vh;
}

.container {
  width: min(1100px, 94vw);
  margin: 32px auto;
  display: grid;
  gap: 18px;
  position: relative;
  z-index: 2;
}

.card {
  background: color-mix(in oklab, var(--card), transparent 8%);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 12px 30px rgba(16, 20, 24, 0.06);
  animation: rise 450ms ease both;
}

.hero h1 {
  margin: 6px 0;
  font-size: clamp(1.2rem, 3vw, 1.9rem);
}

.kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.78rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.hero-actions,
.editor-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
  transition: transform 150ms ease, background-color 150ms ease;
}

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

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.badge {
  border: 1px solid var(--line);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.82rem;
}

.result-box {
  display: grid;
  gap: 7px;
}

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

.small {
  font-size: 0.86rem;
}

.mono {
  font-family: ui-monospace, "Cascadia Code", "Fira Code", monospace;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 8px;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}

tbody tr {
  transition: background-color 180ms ease;
}

tbody tr:hover {
  background: #f5fbfb;
}

.editor {
  width: 100%;
  min-height: 280px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
  background: #fbfdff;
  font-family: ui-monospace, "Cascadia Code", "Fira Code", monospace;
  font-size: 0.85rem;
  margin-top: 10px;
}

.bg-glow {
  position: fixed;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  filter: blur(48px);
  opacity: 0.42;
  pointer-events: none;
  z-index: 1;
  animation: drift 12s ease-in-out infinite alternate;
}

.bg-glow-a {
  background: #a2e9db;
  top: -90px;
  right: -70px;
}

.bg-glow-b {
  background: #c4dcff;
  bottom: -120px;
  left: -90px;
  animation-delay: 1.4s;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(7px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes drift {
  from {
    transform: translate(0, 0) scale(1);
  }
  to {
    transform: translate(30px, -15px) scale(1.12);
  }
}

@media (max-width: 800px) {
  .grid {
    grid-template-columns: 1fr;
  }
}