:root {
  color-scheme: dark;
  --ink: #f7f0dd;
  --muted: #c1b6a2;
  --panel: rgba(20, 24, 22, 0.72);
  --panel-border: rgba(255, 255, 255, 0.16);
  --accent: #d8a24c;
  --accent-2: #6fb068;
  --shadow: rgba(0, 0, 0, 0.45);
  --control-bg: rgba(255, 255, 255, 0.08);
  --control-border: rgba(255, 255, 255, 0.18);
  --control-active-bg: rgba(216, 162, 76, 0.22);
  --control-active-border: rgba(216, 162, 76, 0.85);
  --chip-bg: rgba(255, 255, 255, 0.08);
  --chip-active-bg: rgba(111, 176, 104, 0.22);
  --chip-active-border: rgba(111, 176, 104, 0.78);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  overflow: hidden;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  color: var(--ink);
  transition: background 260ms ease;
}

body::after {
  position: fixed;
  inset: 0;
  z-index: 8;
  background: rgba(0, 0, 0, 0.34);
  content: "";
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease;
}

body.help-open::after {
  opacity: 1;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  position: relative;
  width: 100vw;
  height: 100vh;
}

#sub-scene {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: none;
}

#sub-scene:active {
  cursor: grabbing;
}

#sub-scene.is-drawing {
  cursor: crosshair;
}

.hud {
  position: absolute;
  top: clamp(16px, 4vw, 36px);
  left: clamp(16px, 4vw, 42px);
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  text-shadow: 0 10px 28px var(--shadow);
  font-size: clamp(2.25rem, 7vw, 5.8rem);
  line-height: 0.88;
  letter-spacing: 0;
}

.controls {
  position: absolute;
  bottom: clamp(18px, 4vw, 38px);
  left: clamp(16px, 4vw, 42px);
  display: flex;
  align-items: center;
  width: min(520px, calc(100vw - 32px));
  gap: 10px;
  flex-wrap: wrap;
  padding: 12px;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 42px var(--shadow);
  backdrop-filter: blur(14px);
  pointer-events: auto;
}

.icon-button {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--control-border);
  border-radius: 6px;
  background: var(--control-bg);
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 900;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.icon-button:hover,
.icon-button[aria-pressed="true"] {
  border-color: var(--control-active-border);
  background: var(--control-active-bg);
}

.icon-button:active {
  transform: translateY(1px);
}

.wide-button {
  width: 56px;
}

.glizzy-button {
  min-width: 82px;
  height: 42px;
  border: 1px solid var(--control-border);
  border-radius: 6px;
  background: var(--control-bg);
  color: var(--ink);
  padding: 0 13px;
  font-size: 0.78rem;
  font-weight: 950;
  letter-spacing: 0.04em;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.glizzy-button:hover,
.glizzy-button[aria-pressed="true"] {
  border-color: var(--control-active-border);
  background: var(--control-active-bg);
}

.glizzy-button:active {
  transform: translateY(1px);
}

.switch {
  display: flex;
  min-height: 42px;
  align-items: center;
  gap: 9px;
  padding: 0 10px 0 6px;
  color: var(--ink);
  font-size: 0.84rem;
  font-weight: 800;
  white-space: nowrap;
}

.select-control {
  display: flex;
  min-height: 42px;
  align-items: center;
  gap: 8px;
  padding: 0 8px 0 10px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
}

.select-control select {
  min-width: 8rem;
  height: 32px;
  border: 1px solid var(--control-border);
  border-radius: 6px;
  background: var(--control-bg);
  color: var(--ink);
  padding: 0 28px 0 10px;
  font-size: 0.84rem;
  font-weight: 800;
  text-transform: none;
}

.select-control select:focus-visible,
.size-control input:focus-visible,
.icon-button:focus-visible,
.glizzy-button:focus-visible,
.arrow-pad button:focus-visible,
.switch input:focus-visible + .track {
  outline: 2px solid rgba(216, 162, 76, 0.9);
  outline-offset: 2px;
}

.switch input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.track {
  position: relative;
  width: 38px;
  height: 22px;
  flex: 0 0 auto;
  border: 1px solid var(--control-border);
  border-radius: 999px;
  background: var(--control-bg);
}

.size-control {
  position: absolute;
  right: clamp(16px, 4vw, 42px);
  bottom: clamp(54px, 7vw, 76px);
  display: grid;
  min-height: 42px;
  width: min(260px, calc(100vw - 32px));
  gap: 6px;
  padding: 10px 12px;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 42px var(--shadow);
  backdrop-filter: blur(14px);
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
  pointer-events: auto;
}

.size-control strong {
  color: var(--ink);
  font-size: 0.84rem;
}

.size-control input {
  width: 100%;
  accent-color: var(--accent);
}

.keyboard-help {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(360px, calc(100vw - 32px));
  padding: 14px;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 42px var(--shadow);
  backdrop-filter: blur(14px);
  color: var(--ink);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -46%) scale(0.98);
  transition:
    opacity 160ms ease,
    transform 160ms ease;
  z-index: 9;
}

.keyboard-help.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

.keyboard-help-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.keyboard-help h2 {
  margin: 0;
  color: var(--ink);
  font-size: 1.05rem;
  letter-spacing: 0;
  line-height: 1.1;
}

.shortcut-list {
  display: grid;
  gap: 7px;
  margin: 0;
}

.shortcut-list div {
  display: grid;
  min-height: 34px;
  grid-template-columns: minmax(90px, 0.6fr) 1fr;
  align-items: center;
  gap: 10px;
}

.shortcut-list dt {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--control-border);
  border-radius: 6px;
  background: var(--control-bg);
  color: var(--ink);
  padding: 0 8px;
  font-size: 0.76rem;
  font-weight: 900;
  line-height: 1;
}

.shortcut-list dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 760;
  line-height: 1.2;
}

.track::after {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--muted);
  content: "";
  transition:
    left 160ms ease,
    background 160ms ease;
}

.switch input:checked + .track {
  border-color: var(--chip-active-border);
  background: var(--chip-active-bg);
}

.switch input:checked + .track::after {
  left: 19px;
  background: var(--accent-2);
}

.topping-picker {
  display: flex;
  max-width: 430px;
  min-height: 42px;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
  margin: 0;
  padding: 0 0 0 4px;
  border: 0;
}

.topping-picker legend {
  width: 100%;
  margin: 0 0 -1px 3px;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1;
  text-transform: uppercase;
}

.topping-picker label {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 28px;
}

.topping-picker input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.topping-picker span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid var(--control-border);
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--muted);
  padding: 0 10px;
  font-size: 0.78rem;
  font-weight: 850;
  line-height: 1;
  transition:
    background 160ms ease,
    border-color 160ms ease,
    color 160ms ease;
}

.topping-picker input:checked + span {
  border-color: var(--chip-active-border);
  background: var(--chip-active-bg);
  color: var(--ink);
}

.topping-picker input:focus-visible + span {
  outline: 2px solid rgba(216, 162, 76, 0.9);
  outline-offset: 2px;
}

.is-hidden {
  display: none;
}

.camera-controls {
  display: grid;
  min-height: 42px;
  grid-template-columns: auto auto;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0 0 0 4px;
  border: 0;
}

.camera-controls legend {
  grid-column: 1 / -1;
  margin: 0 0 -1px 3px;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1;
  text-transform: uppercase;
}

.mouse-help {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.mouse-help span {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  border: 1px solid var(--control-border);
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--muted);
  padding: 0 9px;
  font-size: 0.76rem;
  font-weight: 850;
  line-height: 1;
}

.arrow-pad {
  display: grid;
  grid-template-columns: repeat(3, 28px);
  grid-template-rows: repeat(2, 28px);
  gap: 4px;
}

.arrow-pad button {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 1px solid var(--control-border);
  border-radius: 6px;
  background: var(--control-bg);
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 900;
}

.arrow-pad button:hover {
  border-color: var(--control-active-border);
  background: var(--control-active-bg);
}

.arrow-pad [data-orbit="up"] {
  grid-column: 2;
}

.arrow-pad [data-orbit="left"] {
  grid-column: 1;
}

.arrow-pad [data-orbit="down"] {
  grid-column: 2;
}

.arrow-pad [data-orbit="right"] {
  grid-column: 3;
  grid-row: 2;
}

.length-meter {
  position: absolute;
  right: clamp(16px, 4vw, 42px);
  bottom: clamp(18px, 4vw, 38px);
  display: grid;
  grid-template-columns: auto minmax(130px, 22vw) auto;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-shadow: 0 8px 18px var(--shadow);
}

.ruler {
  height: 12px;
  border-right: 2px solid rgba(255, 255, 255, 0.72);
  border-left: 2px solid rgba(255, 255, 255, 0.72);
  background:
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.72) 0 1px,
      transparent 1px 10%
    ),
    linear-gradient(180deg, transparent 0 5px, rgba(255, 255, 255, 0.72) 5px 7px, transparent 7px);
}

@media (max-width: 720px) {
  .hud {
    right: 16px;
  }

  .controls {
    right: 16px;
    bottom: 58px;
    left: 16px;
    width: auto;
  }

  .select-control {
    flex: 1 1 190px;
  }

  .select-control select {
    min-width: 0;
    width: 100%;
  }

  .topping-picker {
    flex: 1 1 100%;
    max-width: none;
  }

  .camera-controls {
    flex: 1 1 100%;
  }

  .switch-text {
    max-width: 6.2rem;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .length-meter {
    right: 16px;
    left: 16px;
    grid-template-columns: auto 1fr auto;
  }

  .size-control {
    right: 16px;
    bottom: 92px;
    left: 16px;
    width: auto;
  }

  .keyboard-help {
    top: 50%;
    right: auto;
    bottom: auto;
    left: 50%;
    width: auto;
  }
}