.lab-tutorial {
  --tutorial-bg: #21252b;
  --tutorial-panel: #2c313a;
  --tutorial-border: #4d5563;
  --tutorial-text: #abb2bf;
  --tutorial-muted: #7f848e;
  --tutorial-accent: #e5c07b;
  --tutorial-focus: #61afef;
  position: fixed;
  z-index: 10000;
  inset: 0;
  color: var(--tutorial-text);
  font-family: system-ui, sans-serif;
}

.lab-tutorial[hidden],
.lab-tutorial__spotlight[hidden] {
  display: none;
}

.lab-tutorial--exploring {
  pointer-events: none;
}

.lab-tutorial__backdrop {
  position: absolute;
  inset: 0;
  background: transparent;
}

.lab-tutorial--no-target .lab-tutorial__backdrop {
  background: rgb(10 12 16 / 72%);
}

.lab-tutorial__spotlight {
  box-sizing: border-box;
  position: fixed;
  z-index: 1;
  border: 2px solid var(--tutorial-accent);
  border-radius: 6px;
  box-shadow: 0 0 0 100vmax rgb(10 12 16 / 72%), 0 0 0 4px rgb(229 192 123 / 22%);
  pointer-events: none;
}

.lab-tutorial__dialog {
  position: fixed;
  z-index: 2;
  width: min(360px, calc(100vw - 32px));
  max-height: min(420px, calc(100vh - 32px));
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 18px;
  border: 1px solid var(--tutorial-border);
  border-radius: 6px;
  background: var(--tutorial-panel);
  box-shadow: 0 18px 48px rgb(0 0 0 / 48%), 0 0 0 1px rgb(229 192 123 / 12%);
  outline: none;
}

.lab-tutorial--exploring .lab-tutorial__dialog {
  pointer-events: auto;
}

.lab-tutorial__header {
  flex-shrink: 0;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 12px;
  align-items: start;
}

.lab-tutorial__progress {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--tutorial-accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.lab-tutorial__title {
  margin: 0;
  color: #d7dae0;
  font-size: 1.1rem;
  line-height: 1.25;
}

.lab-tutorial__body {
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  margin: 12px 0 20px;
  color: var(--tutorial-text);
  font-size: 0.94rem;
  line-height: 1.5;
  white-space: pre-line;
}

.lab-tutorial__keyword,
.lab-tutorial__zone {
  font-weight: 650;
}

.lab-tutorial__keyword {
  color: var(--tutorial-accent);
}

.lab-tutorial__zone--lake {
  color: #56b6c2;
}

.lab-tutorial__zone--river {
  color: #c678dd;
}

.lab-tutorial__zone--ocean {
  color: #61afef;
}

.lab-tutorial__footer {
  flex-shrink: 0;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.lab-tutorial__button {
  border: 1px solid var(--tutorial-border);
  border-radius: 3px;
  padding: 7px 10px;
  color: var(--tutorial-text);
  background: var(--tutorial-bg);
  font: inherit;
  font-size: 0.86rem;
}

.lab-tutorial__button:hover,
.lab-tutorial__button:focus-visible {
  border-color: var(--tutorial-focus);
  outline: 2px solid rgb(97 175 239 / 28%);
  outline-offset: 1px;
}

.lab-tutorial__next {
  border-color: var(--tutorial-accent);
  color: var(--tutorial-accent);
}

.lab-tutorial__button:disabled {
  opacity: 0.45;
}

.lab-tutorial__close {
  min-width: 0;
  padding: 3px 6px;
  color: var(--tutorial-muted);
}

@media (max-width: 480px) {
  .lab-tutorial__dialog {
    padding: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lab-tutorial *,
  .lab-tutorial *::before,
  .lab-tutorial *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}