:root {
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #030611;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
}

.app {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}

#game-canvas {
  width: min(100vw, 160vh);
  height: min(62.5vw, 100vh);
  border: 1px solid #2b3659;
  box-shadow: 0 0 36px rgba(84, 126, 255, 0.25);
  background: #04091a;
  touch-action: none;
}

.mobile-controls {
  position: absolute;
  inset: 0;
  display: none;
  pointer-events: none;
  z-index: 20;
  --ctrl-size: clamp(30px, 6.8vh, 42px);
  --ctrl-gap: clamp(4px, 1.1vh, 8px);
  --action-width: calc(var(--ctrl-size) * 1.55);
  --edge-pad: clamp(8px, 2vh, 14px);
  --bottom-pad: calc(var(--edge-pad) + env(safe-area-inset-bottom, 0px));
  --left-pad: calc(var(--edge-pad) + env(safe-area-inset-left, 0px));
  --right-pad: calc(var(--edge-pad) + env(safe-area-inset-right, 0px));
}

body.mobile-ui .mobile-controls {
  display: block;
}

.mobile-toggle {
  position: absolute;
  top: calc(8px + env(safe-area-inset-top, 0px));
  right: var(--right-pad);
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(177, 226, 255, 0.58);
  background: rgba(7, 20, 46, 0.66);
  color: #dbf2ff;
  font: 700 11px/1 "Trebuchet MS", "Segoe UI", sans-serif;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  pointer-events: auto;
  touch-action: none;
}

.mobile-controls.is-collapsed .mobile-toggle {
  top: auto;
  bottom: var(--bottom-pad);
}

.mobile-pad {
  position: absolute;
  left: var(--left-pad);
  bottom: var(--bottom-pad);
  display: grid;
  grid-template-columns: repeat(3, var(--ctrl-size));
  grid-template-rows: repeat(3, var(--ctrl-size));
  gap: var(--ctrl-gap);
}

.dir-up {
  grid-column: 2;
  grid-row: 1;
}

.dir-left {
  grid-column: 1;
  grid-row: 2;
}

.dir-right {
  grid-column: 3;
  grid-row: 2;
}

.dir-down {
  grid-column: 2;
  grid-row: 3;
}

.mobile-actions {
  position: absolute;
  right: var(--right-pad);
  bottom: var(--bottom-pad);
  display: grid;
  grid-template-columns: repeat(2, var(--action-width));
  gap: var(--ctrl-gap);
}

.mobile-btn {
  min-height: var(--ctrl-size);
  min-width: 0;
  padding: 0 6px;
  pointer-events: auto;
  touch-action: none;
  user-select: none;
  appearance: none;
  border: 1px solid rgba(170, 216, 255, 0.62);
  border-radius: 12px;
  background: rgba(10, 22, 50, 0.54);
  color: #dff2ff;
  font: 700 clamp(10px, 2.2vh, 14px) / 1 "Trebuchet MS", "Segoe UI", sans-serif;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  opacity: 0.76;
  box-shadow: 0 8px 18px rgba(2, 7, 16, 0.32), inset 0 0 0 1px rgba(212, 241, 255, 0.12);
}

.mobile-btn.is-active {
  opacity: 1;
  background: rgba(52, 109, 189, 0.88);
  border-color: rgba(205, 236, 255, 0.95);
  transform: translateY(1px);
}

.mobile-controls[data-context="menu"] .mobile-pad,
.mobile-controls[data-context="menu"] .action-fire,
.mobile-controls[data-context="menu"] .action-map,
.mobile-controls[data-context="menu"] .action-back {
  display: none;
}

.mobile-controls[data-context="menu"] .mobile-actions {
  left: 50%;
  right: auto;
  bottom: var(--bottom-pad);
  transform: translateX(-50%);
  grid-template-columns: minmax(0, calc(var(--action-width) * 1.6));
}

.mobile-controls[data-context="menu"] .action-use {
  min-width: min(72vw, 220px);
  min-height: calc(var(--ctrl-size) * 1.24);
}

.mobile-controls[data-context="overlay"] .action-fire {
  display: none;
}

.mobile-controls.is-collapsed .mobile-pad,
.mobile-controls.is-collapsed .mobile-actions {
  display: none;
}

@media (max-width: 420px) {
  .mobile-controls {
    --action-width: calc(var(--ctrl-size) * 1.34);
  }
}

@media (orientation: landscape) and (max-height: 540px) {
  .mobile-controls {
    --ctrl-size: clamp(24px, 7vh, 32px);
    --ctrl-gap: clamp(3px, 0.9vh, 6px);
    --edge-pad: clamp(6px, 1.4vh, 10px);
  }

  .mobile-btn {
    font-size: clamp(9px, 1.9vh, 12px);
    border-radius: 10px;
  }
}

@media (hover: hover) and (pointer: fine) {
  .mobile-controls {
    display: none !important;
  }
}