:root {
  --ux-focus: #9cf7cf;
  --ux-focus-shadow: rgba(156, 247, 207, 0.35);
  --ux-surface: rgba(4, 18, 12, 0.95);
  --ux-border: rgba(110, 230, 170, 0.4);
  --ux-text: #d9fff0;
  --ux-danger: #ff7b7b;
}

html {
  scroll-behavior: smooth;
}

body {
  line-height: 1.5;
}

.ux-skip-link {
  position: absolute;
  left: -1000px;
  top: 10px;
  z-index: 9999;
  background: #00351f;
  color: var(--ux-text);
  border: 1px solid var(--ux-border);
  border-radius: 8px;
  padding: 8px 12px;
  text-decoration: none;
}

.ux-skip-link:focus {
  left: 10px;
}

:where(button, a, input, select, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--ux-focus) !important;
  outline-offset: 2px;
  box-shadow: 0 0 0 2px var(--ux-focus-shadow);
}

.ux-live-region {
  position: fixed;
  bottom: 14px;
  right: 14px;
  z-index: 2100;
  max-width: min(420px, 86vw);
  background: var(--ux-surface);
  border: 1px solid var(--ux-border);
  color: var(--ux-text);
  border-radius: 12px;
  padding: 10px 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.38);
}

.ux-live-region[data-tone="error"] {
  border-color: var(--ux-danger);
}

.ux-nav-toggle {
  display: none;
  border: 1px solid var(--ux-border);
  background: rgba(0, 0, 0, 0.35);
  color: var(--ux-text);
  border-radius: 10px;
  padding: 8px 12px;
  margin-right: 8px;
}

.ux-feedback-fab {
  position: fixed;
  bottom: 18px;
  left: 18px;
  z-index: 2000;
  border: 1px solid var(--ux-border);
  background: rgba(0, 18, 10, 0.9);
  color: var(--ux-text);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.85rem;
}

.ux-feedback-dialog {
  position: fixed;
  inset: 0;
  z-index: 2200;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.55);
}

.ux-feedback-card {
  width: min(520px, 92vw);
  background: var(--ux-surface);
  color: var(--ux-text);
  border: 1px solid var(--ux-border);
  border-radius: 12px;
  padding: 16px;
}

.ux-feedback-card h3 {
  margin-bottom: 8px;
}

.ux-feedback-card textarea {
  width: 100%;
  min-height: 120px;
  margin: 8px 0 12px;
  border-radius: 10px;
  border: 1px solid var(--ux-border);
  background: rgba(0, 0, 0, 0.35);
  color: var(--ux-text);
  padding: 10px;
}

.ux-feedback-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.ux-feedback-actions button {
  border: 1px solid var(--ux-border);
  border-radius: 8px;
  background: rgba(0, 25, 16, 0.8);
  color: var(--ux-text);
  padding: 7px 12px;
}

.ux-purpose-block {
  border: 1px solid var(--ux-border);
  border-radius: 12px;
  padding: 12px;
  background: rgba(0, 0, 0, 0.28);
  margin: 12px 0 16px;
}

.ux-purpose-block h3 {
  margin: 0 0 6px;
  color: #9bf7c4;
  font-size: 0.95rem;
}

.ux-purpose-block p {
  margin: 0;
  color: rgba(224, 255, 232, 0.82);
  font-size: 0.85rem;
}

.ux-steps {
  margin: 10px 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.ux-step {
  border: 1px solid rgba(110, 230, 170, 0.26);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.24);
  padding: 8px;
  font-size: 0.8rem;
  color: #d9fff0;
}

.ux-step strong {
  color: #9bf7c4;
}

.ux-key-map {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.ux-key-map li {
  font-size: 0.82rem;
  color: rgba(224, 255, 232, 0.8);
}

.ux-mode-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.ux-mode-tab {
  border: 1px solid rgba(0, 255, 136, 0.3);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.45);
  color: #d9fff0;
  padding: 10px;
  font: inherit;
  font-size: 0.84rem;
  cursor: pointer;
}

.ux-mode-tab.active {
  border-color: rgba(0, 255, 136, 0.65);
  background: rgba(0, 255, 136, 0.14);
}

.ux-hidden {
  display: none !important;
}

@media (max-width: 920px) {
  .ux-nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-links.ux-mobile-hidden {
    display: none !important;
  }

  .ux-steps {
    grid-template-columns: 1fr;
  }

  .ux-mode-tabs {
    grid-template-columns: 1fr;
  }
}

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