* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
}

.font-mono,
code,
pre {
  font-family: "JetBrains Mono", "Consolas", monospace;
}

#drop-zone.drag-active {
  border-color: rgba(16, 185, 129, 0.9);
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.14), rgba(14, 116, 144, 0.12));
  transform: translateY(-1px);
}

#drop-zone.drag-active i {
  color: rgb(167, 243, 208);
}

.guide-line {
  position: absolute;
  left: 0;
  right: 0;
  border-top: 2px dotted rgba(248, 113, 113, 0.95);
  box-shadow: 0 0 0 1px rgba(239, 68, 68, 0.2);
}

.guide-label {
  position: absolute;
  right: 0.75rem;
  transform: translateY(-55%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  padding: 0 0.5rem;
  border-radius: 9999px;
  border: 1px solid rgba(248, 113, 113, 0.45);
  background: rgba(127, 29, 29, 0.65);
  color: #fecaca;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.slice-index {
  position: absolute;
  left: 0.75rem;
  transform: translateY(-50%);
  border: 1px solid rgba(248, 113, 113, 0.45);
  background: rgba(153, 27, 27, 0.65);
  color: #fee2e2;
  font-size: 0.7rem;
  font-weight: 800;
  line-height: 1;
  border-radius: 0.5rem;
  padding: 0.3rem 0.45rem;
}

.spin-smooth {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: #0f172a;
}

::-webkit-scrollbar-thumb {
  background: #334155;
  border-radius: 9999px;
}

::-webkit-scrollbar-thumb:hover {
  background: #475569;
}