:root {
  --bg0: #0b0f17;
  --bg1: #0e1626;
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.08);
  --stroke: rgba(255, 255, 255, 0.12);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.66);
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --ui: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  --accent: #76e4ff;
  --accent2: #ffd36a;
  --danger: #ff6b6b;
}

* { box-sizing: border-box; }

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

body {
  font-family: var(--ui);
  color: var(--text);
  background: radial-gradient(1200px 800px at 20% 10%, rgba(118, 228, 255, 0.10), transparent 60%),
              radial-gradient(1000px 700px at 80% 0%, rgba(255, 211, 106, 0.10), transparent 55%),
              linear-gradient(180deg, var(--bg0), var(--bg1));
  overflow-x: hidden;
}

.bg {
  position: fixed;
  inset: -120px;
  background:
    radial-gradient(40px 40px at 12% 22%, rgba(118, 228, 255, 0.18), transparent 60%),
    radial-gradient(60px 60px at 88% 18%, rgba(255, 211, 106, 0.16), transparent 60%),
    radial-gradient(70px 70px at 66% 78%, rgba(118, 228, 255, 0.10), transparent 60%);
  filter: blur(24px);
  opacity: 0.9;
  pointer-events: none;
}

.shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 18px 40px;
}

.top {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 18px;
}

.kicker {
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--muted);
}

.title {
  margin: 6px 0 6px;
  font-size: 34px;
  line-height: 1.05;
}

.sub {
  margin: 0;
  max-width: 58ch;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.status {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 12px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.06);
}

.status.ready .dot {
  background: rgba(118, 228, 255, 0.95);
  box-shadow: 0 0 0 4px rgba(118, 228, 255, 0.16);
}

.status.error .dot {
  background: rgba(255, 107, 107, 0.95);
  box-shadow: 0 0 0 4px rgba(255, 107, 107, 0.16);
}

.panel {
  background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.04));
  border: 1px solid var(--stroke);
  border-radius: 18px;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.bar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px;
  padding: 14px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.left, .right {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.label {
  font-size: 12px;
  color: var(--muted);
}

.select {
  font-family: var(--ui);
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--stroke);
  background: rgba(10, 14, 22, 0.55);
  color: var(--text);
  outline: none;
}

.btn {
  font-family: var(--ui);
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--stroke);
  background: rgba(10, 14, 22, 0.35);
  color: var(--text);
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
}

.btn:disabled, .select:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn:not(:disabled):hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.08);
}

.btn.primary {
  border-color: rgba(118, 228, 255, 0.35);
  background: linear-gradient(180deg, rgba(118, 228, 255, 0.18), rgba(118, 228, 255, 0.08));
}

.btn.secondary {
  border-color: rgba(255, 211, 106, 0.28);
}

.btn.ghost {
  border-color: rgba(255, 255, 255, 0.10);
  background: transparent;
}

.grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 14px;
  padding: 14px;
}

.card {
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 16px;
  overflow: hidden;
  min-height: 420px;
  display: flex;
  flex-direction: column;
}

.cardTitle {
  padding: 12px 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.editor {
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.5;
  padding: 14px;
  border: 0;
  outline: none;
  resize: none;
  flex: 1;
  color: rgba(255, 255, 255, 0.92);
  background: linear-gradient(180deg, rgba(0,0,0,0.20), rgba(0,0,0,0.14));
}

.hint {
  padding: 10px 14px 12px;
  border-top: 1px solid rgba(255,255,255,0.08);
  color: var(--muted);
  font-size: 12px;
}

.output {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.5;
  padding: 14px;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  flex: 1;
  color: rgba(255, 255, 255, 0.90);
  background: linear-gradient(180deg, rgba(0,0,0,0.14), rgba(0,0,0,0.10));
}

.mono {
  font-family: var(--mono);
}

.foot {
  margin-top: 14px;
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
}

.link {
  color: rgba(118, 228, 255, 0.92);
  text-decoration: none;
}

.link:hover { text-decoration: underline; }

.sep { opacity: 0.55; }

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

@media (max-width: 920px) {
  .grid {
    grid-template-columns: 1fr;
  }
  .card {
    min-height: 360px;
  }
  .title {
    font-size: 30px;
  }
  .top {
    flex-direction: column;
    align-items: stretch;
  }
}