*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --sky-top: #6ec6ee;
  --sky-bot: #f4e2b3;
  --ink: #1a1630;
  --panel: rgba(18, 14, 40, 0.82);
  --accent: #ff4d6d;
  --gold: #ffd23f;
  --qubit-blue: #2a7de1;
  --text: #fff8ea;
  --muted: #c9b8e0;
  --font-display: "Bungee", system-ui, sans-serif;
  --font-ui: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

html,
body {
  width: 100%;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: none;
  background: #6ec6ee;
  color: var(--text);
  font-family: var(--font-ui);
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

#app {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
}

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

#game.pulling {
  cursor: grabbing;
}

#hud {
  pointer-events: none;
  position: absolute;
  inset: 0;
  z-index: 25;
}

.hud-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: calc(12px + env(safe-area-inset-top, 0px)) calc(16px + env(safe-area-inset-right, 0px)) 0 calc(16px + env(safe-area-inset-left, 0px));
  gap: 12px;
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand h1 {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 1px;
  color: var(--gold);
  text-shadow: 2px 3px 0 #2a7de1, 0 8px 18px rgba(0, 0, 0, 0.25);
}

#btn-switch {
  pointer-events: auto;
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 2px solid #ffd23f;
  border-radius: 50%;
  background: #1a1630;
  cursor: pointer;
  box-shadow: 0 3px 0 #163a78;
  display: grid;
  place-items: center;
}
#btn-switch:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 #163a78;
}
#btn-switch svg { display: block; }

.tag {
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.55);
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
}

.stats {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.stat {
  min-width: 88px;
  padding: 8px 12px;
  background: var(--panel);
  border: 2px solid rgba(255, 210, 63, 0.35);
  border-radius: 12px;
  text-align: right;
}

.stat .label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.stat .value {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--gold);
  line-height: 1.15;
}

.hint {
  position: absolute;
  left: 50%;
  bottom: calc(10px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink);
  background: rgba(255, 248, 234, 0.78);
  padding: 8px 14px;
  border-radius: 999px;
  white-space: nowrap;
  max-width: min(92vw, 720px);
}

kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  background: #1a1630;
  color: #ffd23f;
  padding: 1px 6px;
  border-radius: 4px;
}

.toast {
  position: absolute;
  top: 92px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--ink);
  background: var(--gold);
  padding: 10px 22px;
  border-radius: 14px;
  box-shadow: 0 8px 0 #c99212;
}

.ammo {
  position: absolute;
  left: calc(12px + env(safe-area-inset-left, 0px));
  bottom: calc(52px + env(safe-area-inset-bottom, 0px));
  display: flex;
  flex-direction: column-reverse;
  gap: 8px;
}

.ammo .pellet {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 2px solid #1a1630;
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.25);
}

.overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  background: rgba(12, 18, 46, 0.45);
  backdrop-filter: blur(6px);
}

.overlay.hidden {
  display: none;
}

.panel {
  width: min(520px, calc(100% - 32px));
  background: var(--panel);
  border: 3px solid var(--gold);
  border-radius: 22px;
  padding: 28px 28px 22px;
  margin: env(safe-area-inset-top, 0px) env(safe-area-inset-right, 0px) env(safe-area-inset-bottom, 0px) env(safe-area-inset-left, 0px);
  text-align: center;
  box-shadow: 0 18px 0 rgba(0, 0, 0, 0.25);
}

.kicker {
  font-family: var(--font-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 11px;
  color: var(--gold);
}

.panel h2 {
  font-family: var(--font-display);
  font-size: 34px;
  margin: 8px 0 12px;
  color: #fff;
  line-height: 1.05;
}

.panel p {
  color: var(--muted);
  line-height: 1.45;
  margin-bottom: 18px;
}

.rotate {
  display: none;
  position: absolute;
  inset: 0;
  z-index: 40;
  place-items: center;
  background: #12203a;
  color: #ffd23f;
  text-align: center;
  font-family: var(--font-display);
  padding: 24px;
}
.rotate p { font-size: 28px; margin-bottom: 8px; }
.rotate span { font-family: var(--font-ui); color: #c9b8e0; }

#btn-start {
  pointer-events: auto;
  font-family: var(--font-display);
  font-size: 16px;
  border: 0;
  background: var(--accent);
  color: #fff;
  padding: 14px 24px;
  min-height: 48px;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 6px 0 #a61d3a;
}

#btn-start:active {
  transform: translateY(3px);
  box-shadow: 0 3px 0 #a61d3a;
}

#btn-build {
  pointer-events: auto;
  display: block;
  width: 100%;
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: 14px;
  border: 0;
  background: #2a7de1;
  color: #fff;
  padding: 12px 20px;
  min-height: 44px;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 6px 0 #163a78;
}

#btn-build:active {
  transform: translateY(3px);
  box-shadow: 0 3px 0 #163a78;
}

.hud-build {
  pointer-events: auto;
  position: absolute;
  left: calc(16px + env(safe-area-inset-left, 0px));
  top: calc(78px + env(safe-area-inset-top, 0px));
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.04em;
  border: 2px solid #ffd23f;
  background: var(--panel);
  color: #ffd23f;
  padding: 7px 12px;
  border-radius: 999px;
  cursor: pointer;
}

body[data-mode="qubits"] .hud-build {
  border-color: #7ef6ff;
  color: #7ef6ff;
}

body[data-building="1"] .hud-build,
body[data-building="1"] #hud .stats,
body[data-building="1"] #ammo-preview,
body[data-building="1"] #hint {
  display: none;
}

#builder-dock {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 28;
  pointer-events: none;
  padding: 0 12px calc(10px + env(safe-area-inset-bottom, 0px));
}

#builder-dock .builder-bar,
#builder-dock .builder-hint {
  pointer-events: auto;
}

.builder-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  align-items: center;
  background: var(--panel);
  border: 2px solid rgba(255, 210, 63, 0.45);
  border-radius: 16px;
  padding: 10px 12px;
}

body[data-mode="qubits"] .builder-bar,
body[data-building="1"][data-kit="qubit"] .builder-bar {
  border-color: rgba(126, 246, 255, 0.45);
}

.builder-title {
  display: flex;
  flex-direction: column;
  min-width: 140px;
  font-family: var(--font-display);
  font-size: 13px;
  color: #ffd23f;
}
.builder-title span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  font-weight: 500;
}

.kit-toggle {
  display: flex;
  background: #0f0c22;
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}
.kit-toggle button {
  font-family: var(--font-display);
  font-size: 11px;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 7px 12px;
  border-radius: 999px;
  cursor: pointer;
}
.kit-toggle button.on {
  background: #2a7de1;
  color: #fff;
}
body[data-kit="qubit"] #kit-qubit { background: #1aa7c4; color: #fff; }
body[data-kit="lego"] #kit-lego { background: #c91a09; color: #fff; }

.swatches, .sizes {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
#builder-sizes[hidden],
#builder-rot-ccw[hidden],
#builder-rot-cw[hidden],
#builder-flip[hidden] {
  display: none !important;
}

#builder-flip.on {
  background: #1aa7c4;
  color: #fff;
}

.swatches button {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid #fff8ea;
  cursor: pointer;
  padding: 0;
}
.swatches button.on {
  outline: 2px solid #ffd23f;
  outline-offset: 1px;
}

.sizes button {
  font-family: var(--font-mono);
  font-size: 11px;
  border: 2px solid rgba(255, 248, 234, 0.35);
  background: #1a1630;
  color: #fff8ea;
  border-radius: 8px;
  padding: 4px 8px;
  cursor: pointer;
}
.sizes button.on {
  border-color: #ffd23f;
  color: #ffd23f;
}

#builder-name {
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 700;
  width: 140px;
  border: 0;
  border-radius: 8px;
  padding: 8px 10px;
  background: #fff8ea;
  color: #1a1630;
}

.builder-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-left: auto;
}
.builder-actions button {
  font-family: var(--font-display);
  font-size: 11px;
  border: 0;
  background: #2b2744;
  color: #fff8ea;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
}
.builder-actions button.primary {
  background: var(--accent);
  box-shadow: 0 3px 0 #a61d3a;
}

.builder-hint {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink);
  background: rgba(255, 248, 234, 0.82);
  padding: 6px 12px;
  border-radius: 999px;
  width: fit-content;
  max-width: 96%;
}

.controls-list {
  list-style: none;
  margin-top: 16px;
  color: var(--muted);
  font-size: 13px;
  text-align: left;
}

.controls-list li + li {
  margin-top: 6px;
}

@media (max-width: 900px) {
  .brand h1 { font-size: 16px; letter-spacing: 0.5px; }
  .stat { min-width: 62px; padding: 5px 8px; }
  .stat .value { font-size: 16px; }
  .hint { font-size: 10px; white-space: normal; text-align: center; }
  .panel h2 { font-size: 26px; }
  .toast { font-size: 16px; top: 72px; }
}

@media (orientation: portrait) and (pointer: coarse) {
  .rotate { display: grid; }
}

@media (orientation: landscape) and (pointer: coarse) {
  .builder-actions button,
  .kit-toggle button,
  .hud-build,
  #btn-start,
  #btn-build {
    min-height: 44px;
  }
  #builder-name {
    font-size: 16px;
  }
  .builder-hint {
    display: none;
  }
  .builder-bar {
    max-height: 42vh;
    overflow: auto;
  }
  .hud-build {
    top: calc(70px + env(safe-area-inset-top, 0px));
  }
}

body[data-mode="qubits"] .brand h1 {
  color: #7ef6ff;
  text-shadow: 2px 3px 0 #163a78, 0 8px 18px rgba(0, 0, 0, 0.25);
}

body[data-mode="qubits"] .stat {
  border-color: rgba(126, 246, 255, 0.4);
}

body[data-mode="qubits"] .stat .value {
  color: #7ef6ff;
}

body[data-mode="qubits"] #btn-switch {
  border-color: #7ef6ff;
}

body[data-mode="qubits"] .toast {
  background: #7ef6ff;
  box-shadow: 0 8px 0 #1aa7c4;
}

body[data-mode="qubits"] .panel {
  border-color: #7ef6ff;
}

body[data-mode="qubits"] #btn-start {
  background: #1aa7c4;
  box-shadow: 0 6px 0 #0d5f70;
}

body[data-mode="qubits"] #btn-start:active {
  box-shadow: 0 3px 0 #0d5f70;
}

body[data-mode="qubits"] .ammo .pellet {
  border-radius: 50%;
  clip-path: polygon(25% 6%, 75% 6%, 100% 50%, 75% 94%, 25% 94%, 0 50%);
}