:root {
  --bg: #101413;
  --panel: #191e1b;
  --surface: #121913;
  --raised: #222b20;
  --border: #303830;
  --border-strong: #45533d;
  --text: #edf1e9;
  --muted: #acb7a5;
  --accent: #b6ed86;
  --accent-hover: #cdf8a8;
  --accent-ink: #1d2b12;
  --accent-soft: #283921;
  --accent-border: #536e41;
  --accent-shadow: #74954f;
  --purple: #c6adfa;
  --book-bg: #292431;
  --book-border: #665376;
  --warning-text: #ead69d;
  --warning-bg: #332e20;
  --warning-border: #706039;
}

:root[data-theme='amethyst'] {
  --bg: #16121e;
  --panel: #211b2b;
  --surface: #181320;
  --raised: #30263d;
  --border: #3d304e;
  --border-strong: #5d4873;
  --text: #f3ecfa;
  --muted: #bfb0cd;
  --accent: #d2adff;
  --accent-hover: #e6ceff;
  --accent-ink: #29133e;
  --accent-soft: #3b284e;
  --accent-border: #8460a7;
  --accent-shadow: #9165b5;
  --purple: #93dcd9;
  --book-bg: #1e3337;
  --book-border: #4e7f89;
}

:root[data-theme='ocean'] {
  --bg: #0e1720;
  --panel: #16232d;
  --surface: #101c26;
  --raised: #203441;
  --border: #2a4353;
  --border-strong: #3c6275;
  --text: #e6f3fa;
  --muted: #a4becd;
  --accent: #8cdde9;
  --accent-hover: #b6edf3;
  --accent-ink: #102d39;
  --accent-soft: #1e3b49;
  --accent-border: #4a8899;
  --accent-shadow: #448a9c;
  --purple: #d1b5fa;
  --book-bg: #2b293e;
  --book-border: #76648f;
}

:root[data-theme='ember'] {
  --bg: #1d1413;
  --panel: #291e1a;
  --surface: #201612;
  --raised: #3a2b23;
  --border: #4c342c;
  --border-strong: #705044;
  --text: #fbefe5;
  --muted: #ceb3a3;
  --accent: #ffb782;
  --accent-hover: #ffd2aa;
  --accent-ink: #3a2012;
  --accent-soft: #4c3020;
  --accent-border: #a1704b;
  --accent-shadow: #b67d4e;
  --purple: #debbec;
  --book-bg: #352636;
  --book-border: #88658c;
}

:root[data-theme='overworld'] {
  --bg: #101912;
  --panel: #18271d;
  --surface: #102017;
  --raised: #253b29;
  --border: #344a32;
  --border-strong: #516d46;
  --text: #eef5e5;
  --muted: #b0c4a5;
  --accent: #c2e988;
  --accent-hover: #ddf7b3;
  --accent-ink: #233516;
  --accent-soft: #314628;
  --accent-border: #769258;
  --accent-shadow: #8a9d5d;
}

/* Keep theme changes on colour properties so the layout stays still. */
body,
.panel,
.stats,
.gear-preview,
.check-step,
.slot,
.blueprint-toolbar,
.step-detail,
.theme-menu,
.theme-picker summary,
.theme-choices button,
.status-badge,
.enchant-row,
button,
input,
select,
h1 span,
.stats strong,
.step-cost,
.step-number,
.brand > svg,
.graph svg * {
  transition:
    background-color 420ms ease,
    border-color 420ms ease,
    color 420ms ease,
    fill 420ms ease,
    stroke 420ms ease,
    box-shadow 420ms ease,
    transform 180ms ease;
}

.topbar {
  position: relative;
  z-index: 5;
}
main,
footer {
  position: relative;
  z-index: 1;
}
.theme-picker {
  position: relative;
  font-size: 13px;
}
.theme-picker > summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--panel);
  cursor: pointer;
  list-style: none;
}
.theme-picker > summary::-webkit-details-marker {
  display: none;
}
.theme-picker[open] > summary {
  border-color: var(--accent);
}
.theme-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: inset -4px 0 0 #0003;
}
.theme-menu {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: min(270px, calc(100vw - 32px));
  padding: 15px;
  background: var(--panel);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  box-shadow: 0 16px 40px #0007;
  animation: menu-in 180ms ease-out;
}
.theme-menu > p {
  margin: 0 0 12px;
  font-weight: 600;
}
.theme-choices {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
}
.theme-choices button {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 9px 8px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface);
  font-size: 12px;
  text-align: left;
}
.theme-choices button:last-child {
  grid-column: 1 / -1;
}
.theme-choices button[aria-pressed='true'] {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}
.theme-choices small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  margin-top: 2px;
}
.motion-toggle {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 14px;
}
.motion-toggle input {
  margin: 0;
}
#reduced-motion-note {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.5;
}

.world-background {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 700ms ease,
    visibility 700ms;
}
[data-theme='overworld'] .world-background {
  opacity: 1;
  visibility: visible;
}
.world-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 8% 35%, #78ac3e1f, transparent 45%),
    radial-gradient(ellipse at 92% 70%, #8e71b01a, transparent 45%);
}
.background-mob {
  position: absolute;
  width: clamp(100px, 12vw, 190px);
  height: clamp(150px, 25vh, 240px);
  object-fit: contain;
  image-rendering: pixelated;
  opacity: 0.32;
  animation: mob-float 9s ease-in-out infinite alternate;
  animation-play-state: paused;
}
[data-theme='overworld'] .background-mob {
  animation-play-state: running;
}
.mob-creeper {
  top: 21%;
  left: max(-30px, calc((100vw - 1650px) / 2));
}
.mob-bee {
  top: 9%;
  right: 9%;
  width: 110px;
  height: 130px;
  animation-delay: -4s;
}
.mob-enderman {
  top: 43%;
  right: max(-25px, calc((100vw - 1650px) / 2));
  animation-delay: -2s;
}
.mob-zombie {
  top: 62%;
  left: max(-35px, calc((100vw - 1700px) / 2));
  animation-delay: -6s;
}
.mob-axolotl {
  bottom: 1%;
  right: 7%;
  width: 155px;
  height: 130px;
  animation-delay: -3s;
}
.mob-skeleton {
  top: 4%;
  left: max(-15px, calc((100vw - 1850px) / 2));
  width: 115px;
  animation-delay: -7s;
}

.primary-button:hover:not(:disabled),
.level-buttons button:hover:not(:disabled) {
  transform: translateY(-2px);
}
.primary-button:active:not(:disabled),
.level-buttons button:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
}
.check-step {
  animation: step-in 350ms ease-out backwards;
  animation-delay: calc(var(--step-index, 0) * 40ms);
}
.done-control input {
  transition: transform 180ms ease;
}
.done-control input:checked {
  transform: scale(1.1);
}
.graph .node {
  animation: node-in 300ms ease-out both;
}
.graph .node:focus-visible {
  outline: none;
}
.graph .node:focus-visible .node-bg {
  stroke: var(--accent);
  stroke-width: 3;
}
.graph-step-number {
  fill: var(--accent-soft);
}
.graph-step-number.finished {
  fill: var(--accent);
}
.graph-step-label,
.graph-node-title {
  fill: var(--text);
}
.graph-step-label.finished {
  fill: var(--accent-ink);
}
.graph-node-subtitle {
  fill: var(--muted);
}
.graph-junction {
  fill: var(--accent-border);
}

@keyframes menu-in {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes step-in {
  from {
    opacity: 0;
    translate: 0 8px;
  }
  to {
    opacity: 1;
    translate: 0 0;
  }
}
@keyframes node-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes mob-float {
  from {
    transform: translateY(0) rotate(-3deg);
  }
  to {
    transform: translateY(-14px) rotate(3deg);
  }
}

@media (max-width: 580px) {
  .topbar {
    height: auto;
    min-height: 78px;
    gap: 12px;
    padding-top: 10px;
    padding-bottom: 10px;
    flex-wrap: wrap;
  }
  .header-right {
    width: 100%;
    justify-content: flex-end;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
  }
  .theme-picker > summary {
    padding: 6px 9px;
  }
  .background-mob {
    opacity: 0.13;
  }
  .mob-creeper,
  .mob-zombie,
  .mob-skeleton,
  .mob-enderman {
    display: none;
  }
  .mob-bee {
    right: -20px;
    top: 15%;
  }
  .mob-axolotl {
    right: -20px;
  }
}

/* The setting and the operating-system preference both stop motion. */
[data-motion='off'] *,
[data-motion='off'] *::before,
[data-motion='off'] *::after {
  animation: none !important;
  transition: none !important;
  scroll-behavior: auto !important;
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}
@media print {
  .world-background,
  .theme-picker {
    display: none !important;
  }
  * {
    animation: none !important;
    transition: none !important;
  }
}