/* Low-Poly World Explorer — HUD chrome.
   The 3D scene owns the colour; the HUD stays quiet and out of the way. */

:root {
  --accent: #ffab5e;
  --accent-dim: #c97f3c;
  --ink: #fff2dd;
  --ink-soft: rgba(255, 242, 221, 0.66);
  --panel: rgba(20, 14, 26, 0.55);
  --panel-line: rgba(255, 242, 221, 0.16);
  --panel-solid: rgba(22, 15, 28, 0.93);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --radius: 12px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --ink: #2a1c12;
    --ink-soft: rgba(42, 28, 18, 0.70);
    --panel: rgba(255, 248, 238, 0.72);
    --panel-line: rgba(42, 28, 18, 0.16);
    --panel-solid: rgba(255, 250, 243, 0.96);
    --shadow: 0 10px 30px rgba(80, 44, 12, 0.22);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: #150f1d;
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

#scene {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
  touch-action: none;
  outline: none;
}

#scene:active { cursor: grabbing; }

#scene:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -3px;
}

/* ------------------------------------------------------------------ */
/* HUD                                                                 */
/* ------------------------------------------------------------------ */

#hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

#hud button,
#hud .sheet { pointer-events: auto; }

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
  padding: 9px 12px;
}

.panel-label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

#topright {
  position: absolute;
  top: max(14px, env(safe-area-inset-top));
  right: max(14px, env(safe-area-inset-right));
  width: 172px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: stretch;
}

#fps-panel .fps-line {
  display: flex;
  align-items: baseline;
  gap: 5px;
}

#fps-val {
  font-size: 26px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  line-height: 1.05;
  color: var(--ink);
}

#fps-panel i {
  font-style: normal;
  font-size: 11px;
  color: var(--ink-soft);
}

#compass-panel {
  display: flex;
  align-items: center;
  gap: 10px;
}

#compass {
  width: 76px;
  height: 76px;
  flex: 0 0 auto;
  border-radius: 50%;
}

.compass-readout {
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

#inv-panel .panel-label b {
  font-weight: 700;
  color: var(--accent);
  margin-left: 4px;
}

.inv-list {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  gap: 3px;
}

.inv-list li {
  display: grid;
  grid-template-columns: 12px 1fr auto;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
}

.inv-list b {
  font-variant-numeric: tabular-nums;
  font-weight: 650;
}

.swatch {
  width: 11px;
  height: 11px;
  border-radius: 3px;
  transform: rotate(45deg);
  display: block;
}

.swatch-wood { background: #8a5a33; }
.swatch-stone { background: #8d8681; }
.swatch-resin { background: #ffc169; }

#map-panel {
  padding: 10px 10px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

#minimap {
  width: 148px;
  height: 148px;
  border-radius: 8px;
  display: block;
  background: #17121f;
}

/* ------------------------------------------------------------------ */
/* Bottom-left hint                                                    */
/* ------------------------------------------------------------------ */

#hint {
  position: absolute;
  left: max(16px, env(safe-area-inset-left));
  bottom: max(16px, env(safe-area-inset-bottom));
  margin: 0;
  padding: 8px 13px;
  font-size: 13px;
  letter-spacing: 0.01em;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 999px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
  transition: opacity 900ms ease, transform 900ms ease;
}

#hint.is-faded {
  opacity: 0;
  transform: translateY(6px);
}

/* ------------------------------------------------------------------ */
/* Crosshair, prompt, toast                                            */
/* ------------------------------------------------------------------ */

#crosshair {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 5px;
  height: 5px;
  margin: -2.5px 0 0 -2.5px;
  border-radius: 50%;
  background: rgba(255, 242, 221, 0.55);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35);
}

#prompt {
  position: absolute;
  left: 50%;
  top: calc(50% + 22px);
  transform: translateX(-50%);
  margin: 0;
  padding: 5px 11px;
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 999px;
  opacity: 0;
  transition: opacity 140ms ease;
}

#prompt.is-visible { opacity: 1; }

#toast {
  position: absolute;
  left: 50%;
  bottom: 74px;
  transform: translate(-50%, 8px);
  margin: 0;
  max-width: min(520px, 84vw);
  padding: 10px 16px;
  text-align: center;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--ink);
  background: var(--panel-solid);
  border: 1px solid var(--panel-line);
  border-radius: 10px;
  box-shadow: var(--shadow);
  opacity: 0;
  transition: opacity 220ms ease, transform 220ms ease;
}

#toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ------------------------------------------------------------------ */
/* Sheets (craft menu + help)                                          */
/* ------------------------------------------------------------------ */

#help-toggle {
  position: absolute;
  right: max(14px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  padding: 7px 13px;
  font: inherit;
  font-size: 12px;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 999px;
  cursor: pointer;
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
}

#help-toggle:hover { border-color: var(--accent-dim); }

.sheet {
  position: absolute;
  left: 50%;
  bottom: max(28px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  width: min(560px, calc(100vw - 32px));
  max-height: min(70vh, 520px);
  overflow-y: auto;
  padding: 18px 20px 16px;
  background: var(--panel-solid);
  border: 1px solid var(--panel-line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.sheet[hidden] { display: none; }

.sheet h2 {
  margin: 0 0 4px;
  font-size: 17px;
  letter-spacing: 0.01em;
}

.sheet-sub,
.sheet-foot {
  margin: 0 0 12px;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--ink-soft);
}

.sheet-foot { margin: 12px 0 0; }

#craft-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 8px;
}

.recipe {
  display: grid;
  gap: 3px;
  width: 100%;
  height: 100%;
  padding: 10px 12px;
  text-align: left;
  font: inherit;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--panel-line);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 140ms ease, background 140ms ease, transform 140ms ease;
}

@media (prefers-color-scheme: light) {
  .recipe { background: rgba(42, 28, 18, 0.05); }
}

.recipe:hover:not(:disabled),
.recipe:focus-visible {
  border-color: var(--accent);
  background: rgba(255, 171, 94, 0.14);
  transform: translateY(-1px);
  outline: none;
}

.recipe.is-locked {
  opacity: 0.45;
  cursor: not-allowed;
}

.recipe-head {
  display: flex;
  align-items: center;
  gap: 7px;
}

.recipe-key {
  display: inline-grid;
  place-items: center;
  width: 17px;
  height: 17px;
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: 4px;
}

.recipe-name {
  font-size: 13.5px;
  font-weight: 650;
}

.recipe-cost {
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.recipe-blurb {
  font-size: 11.5px;
  line-height: 1.4;
  color: var(--ink-soft);
}

.keys {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 16px;
  margin: 0 0 6px;
  font-size: 13px;
}

.keys dt {
  font-weight: 650;
  color: var(--accent);
}

.keys dd {
  margin: 0;
  color: var(--ink-soft);
}

#help-close {
  margin-top: 12px;
  padding: 7px 15px;
  font: inherit;
  font-size: 12.5px;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--panel-line);
  border-radius: 999px;
  cursor: pointer;
}

#help-close:hover { border-color: var(--accent-dim); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ------------------------------------------------------------------ */
/* Loading + noscript                                                  */
/* ------------------------------------------------------------------ */

#loading {
  position: fixed;
  inset: 0;
  z-index: 5;
  display: grid;
  place-items: center;
  background: linear-gradient(180deg, #2a1c4a 0%, #ff9f52 100%);
  color: #fff2dd;
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: opacity 500ms ease;
}

#loading.is-done {
  opacity: 0;
  pointer-events: none;
}

.noscript {
  position: fixed;
  inset: 0;
  z-index: 6;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
  background: #150f1d;
  color: #fff2dd;
}

/* ------------------------------------------------------------------ */
/* Reduced motion                                                      */
/* ------------------------------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
  #hint,
  #toast,
  #prompt,
  .recipe,
  #loading {
    transition-duration: 1ms;
  }
}