:root {
  color-scheme: dark;
  --bg: #06090e;
  --panel: rgba(12, 18, 25, 0.92);
  --panel-2: rgba(18, 29, 38, 0.88);
  --line: rgba(111, 213, 255, 0.28);
  --line-hot: rgba(255, 178, 80, 0.62);
  --text: #f1f7f9;
  --muted: #8fa7b0;
  --green: #74e06c;
  --gold: #ffc24c;
  --danger: #ff677d;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body,
.app-shell {
  width: 100%;
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  color: var(--text);
  background:
    linear-gradient(90deg, rgba(91, 206, 255, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(91, 206, 255, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 18% 12%, rgba(116, 224, 108, 0.12), transparent 26%),
    radial-gradient(circle at 84% 18%, rgba(255, 194, 76, 0.12), transparent 28%),
    linear-gradient(135deg, #071019, #100b12 55%, #09151c);
  background-size: 42px 42px, 42px 42px, auto, auto, auto;
}

button {
  font: inherit;
}

.hidden {
  display: none !important;
}

.main-menu,
.game-screen,
.modal-backdrop {
  position: fixed;
  inset: 0;
}

.main-menu {
  display: grid;
  place-items: center;
  padding: 22px;
}

.menu-card,
.pause-card {
  width: min(520px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 22%), var(--panel);
  box-shadow: var(--shadow), inset 0 0 0 1px rgba(255, 255, 255, 0.035);
}

.menu-card {
  padding: 22px;
}

.menu-head {
  display: block;
  margin-bottom: 18px;
}

.pause-card p {
  margin: 0;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 800;
  font-size: 0.78rem;
}

.menu-head h1 {
  margin: 0;
  font-size: clamp(1.8rem, 7vw, 3.4rem);
  line-height: 0.95;
}

.level-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.level-tile {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border: 1px solid rgba(111, 213, 255, 0.24);
  border-radius: 6px;
  color: var(--text);
  background: linear-gradient(145deg, rgba(28, 54, 68, 0.9), rgba(10, 17, 24, 0.95));
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.level-tile:hover,
.level-tile.selected {
  transform: translateY(-2px);
  border-color: var(--line-hot);
  background: linear-gradient(145deg, rgba(69, 44, 21, 0.95), rgba(17, 29, 36, 0.95));
}

.level-tile strong {
  font-size: clamp(1.7rem, 8vw, 3.3rem);
  line-height: 1;
}

.level-tile span {
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.primary-button,
.secondary-button,
.control-button {
  min-height: 46px;
  border-radius: 7px;
  border: 1px solid var(--line-hot);
  color: var(--text);
  font-weight: 900;
  cursor: pointer;
}

.primary-button {
  width: 100%;
  margin-top: 16px;
  background: linear-gradient(180deg, #70b938, #397819);
}

.primary-button:disabled,
button:disabled {
  cursor: not-allowed;
  filter: grayscale(0.75);
  opacity: 0.52;
}

.secondary-button {
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
}

.game-screen {
  display: grid;
  grid-template-rows: 52px minmax(0, 1fr) 220px;
  gap: 10px;
  padding: 10px;
}

.hud {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(10px, 1vw, 22px);
}

.hud-top {
  height: 52px;
  justify-content: center;
}

.hud-group {
  display: flex;
  align-items: center;
  gap: clamp(8px, 0.75vw, 16px);
  flex-wrap: wrap;
}

.hud-group.center {
  justify-content: center;
}

.hud-chip,
.control-button,
.ability-card,
.weapon-card {
  border: 1px solid var(--line);
  border-radius: 7px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), transparent 22%),
    var(--panel-2);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
}

.hud-chip {
  --hud-chip-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.055), transparent 22%), var(--panel-2);
  width: 96px;
  height: 52px;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 8px 14px;
  border: 0;
  border-radius: 0;
  background: var(--hud-chip-bg) center / 100% 100% no-repeat;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.34);
}

.hud-chip.wide {
  width: 178px;
}

.hud-chip span {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hud-chip strong {
  font-size: 1.05rem;
  color: #f6efe0;
  text-shadow: 0 2px 3px rgba(0, 0, 0, 0.85);
}

.lives-chip {
  --hud-chip-bg: var(--hud-lives-plaque);
  width: 100px;
  justify-content: flex-end;
  padding-left: 44px;
  padding-right: 22px;
}

.gold-chip {
  --hud-chip-bg: var(--hud-gold-plaque);
  width: 106px;
  justify-content: flex-end;
  padding-left: 44px;
  padding-right: 22px;
}

.player-chip {
  --hud-chip-bg: var(--hud-player-plaque);
  width: 230px;
  justify-content: flex-start;
  padding-left: 64px;
  padding-right: 18px;
}

.mission-chip {
  --hud-chip-bg: var(--hud-mission-plaque);
  justify-content: center;
  padding-left: 80px;
}

.wave-chip {
  --hud-chip-bg: var(--hud-wave-plaque);
  width: 130px;
  justify-content: flex-end;
  padding-left: 44px;
  padding-right: 18px;
}

.kills-chip {
  --hud-chip-bg: var(--hud-kills-plaque);
  width: 140px;
  justify-content: flex-end;
  padding-left: 44px;
  padding-right: 18px;
}

.hud-top .lives-chip .heart,
.hud-top .gold-chip .coin,
.hud-top .kills-chip .skull,
.hud-top .player-chip span,
.hud-top .mission-chip span,
.hud-top .wave-chip span {
  display: none;
}

.player-chip {
  position: relative;
  overflow: hidden;
  color: var(--text);
  cursor: pointer;
}

.player-chip strong {
  position: absolute;
  left: 53px;
  top: 50%;
  transform: translateY(-50%);
}

.player-chip i {
  position: absolute;
  left: 90px;
  top: 50%;
  transform: translateY(-50%);
  width: var(--xp-progress, 0%);
  max-width: calc(100% - 164px);
  height: 8px;
  border-radius: 2px;
  background: var(--green);
}

.icon.heart,
.coin,
.skull,
.hourglass {
  display: inline-block;
  flex: 0 0 auto;
}

.heart {
  width: 18px;
  height: 18px;
  background: var(--danger);
  transform: rotate(45deg);
  border-radius: 4px;
  position: relative;
}

.heart::before,
.heart::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--danger);
}

.heart::before {
  left: -9px;
}

.heart::after {
  top: -9px;
}

.coin {
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #fff4a1, var(--gold) 45%, #a66111);
  box-shadow: inset 0 0 0 3px rgba(99, 59, 0, 0.28);
}

.skull {
  width: 18px;
  height: 18px;
  border-radius: 8px 8px 5px 5px;
  background: #dff6e4;
  position: relative;
}

.skull::before,
.skull::after {
  content: "";
  position: absolute;
  top: 6px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #111920;
}

.skull::before {
  left: 4px;
}

.skull::after {
  right: 4px;
}

.control-button {
  width: 66px;
  height: 48px;
  flex: 0 0 auto;
  padding: 0 12px;
  border: 0;
  border-radius: 0;
  color: #f6efe0;
  background: var(--hud-speed-plaque) center / 100% 100% no-repeat;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.34);
  text-shadow: 0 2px 3px rgba(0, 0, 0, 0.85);
  font-size: 0.92rem;
}

.icon-control {
  width: 72px;
  display: inline-grid;
  place-items: center;
  color: transparent;
  position: relative;
}

.icon-control::before,
.icon-control::after {
  content: none;
}

.icon-control.play-icon {
  background: var(--hud-play-button) center / contain no-repeat;
}

.icon-control.pause-icon {
  background: var(--hud-pause-button) center / contain no-repeat;
}

.speed-state.fast {
  filter: saturate(1.22) brightness(1.08);
}

.gear-button {
  color: transparent;
  width: 56px;
  position: relative;
  background: var(--hud-menu-button) center / contain no-repeat;
}

.gear-button::before {
  content: none;
}

.arena-wrap {
  height: 100%;
  min-height: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: 0;
  overflow: hidden;
}

#game-canvas {
  display: inline-block;
  width: auto;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  flex: 0 1 auto;
  min-width: 0;
  aspect-ratio: 16 / 9;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.tower-sidebar {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(260px, 24vw);
  min-width: 220px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), transparent 22%),
    var(--panel-2);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
  padding: 12px;
  overflow: auto;
}

.tower-sidebar-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.tower-sidebar-head p {
  margin: 0 0 4px;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.68rem;
  font-weight: 900;
}

.tower-sidebar-head h2 {
  margin: 0;
  font-size: 1.2rem;
}

.hud-bottom {
  height: 220px;
  display: grid;
  grid-template-columns: 170px auto;
  justify-content: center;
  gap: clamp(10px, 1vw, 22px);
}

.ability-card {
  width: 170px;
  height: 220px;
  color: var(--text);
  display: grid;
  grid-template-rows: 1fr auto auto;
  justify-items: center;
  align-content: end;
  gap: 4px;
  padding: 12px 12px 18px;
  cursor: pointer;
  border: 0;
  border-radius: 0;
  background: var(--time-stop-card) center / 100% 100% no-repeat;
}

.hourglass {
  width: 34px;
  height: 44px;
  border: 5px solid #c9f7ff;
  border-top-color: #fff4a1;
  border-bottom-color: #fff4a1;
  border-radius: 50% 50% 45% 45%;
}

.ability-card .hourglass,
.ability-card > strong {
  display: none;
}

.ability-card small {
  align-self: end;
  margin-bottom: 0px;
  min-width: 90px;
  min-height: 30px;
  display: inline-grid;
  place-items: center;
  border: 0;
  border-radius: 0;
  padding: 4px 14px 5px;
  background: var(--active-plaque) center / 100% 100% no-repeat;
  text-shadow: 0 2px 3px rgba(0, 0, 0, 0.82);
}

.ability-card small,
.weapon-card small {
  color: #e8ffd7;
  background: #3d831f;
  border: 1px solid rgba(211, 255, 174, 0.55);
  border-radius: 5px;
  padding: 3px 12px;
  font-weight: 900;
}

.ability-card small {
  border: 0;
  border-radius: 0;
  padding: 4px 14px 5px;
  background: var(--active-plaque) center / 100% 100% no-repeat;
}

.weapon-card small {
  min-width: min(92px, 72%);
  min-height: 28px;
  display: inline-grid;
  place-items: center;
  border: 0;
  border-radius: 0;
  padding: 4px 12px 5px;
  color: #f7ffe8;
  background: var(--slot-price-plaque) center / 100% 100% no-repeat;
  text-shadow: 0 2px 3px rgba(0, 0, 0, 0.82);
  transform: translateY(-10px);
}

.weapon-bar {
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(6, 170px);
  gap: clamp(8px, 0.9vw, 18px);
}

.weapon-card {
  position: relative;
  min-width: 0;
  min-height: 220px;
  color: var(--text);
  display: grid;
  grid-template-rows: 22px minmax(96px, 1fr) auto auto;
  justify-items: center;
  gap: 2px;
  padding: 12px 12px 13px;
  cursor: pointer;
  overflow: hidden;
  border: 0;
  background:
    linear-gradient(rgba(2, 8, 12, 0.08), rgba(2, 8, 12, 0.08)),
    var(--slot-card-image) center / 100% 100% no-repeat;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.34);
}

.weapon-card.unaffordable {
  cursor: not-allowed;
  filter: grayscale(0.75);
  opacity: 0.52;
}

.weapon-card.selected {
  outline: 3px solid var(--green);
  outline-offset: -3px;
}

.weapon-info-button,
.icon-button {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
}

.weapon-card .weapon-nickname {
  position: absolute;
  top: 23px;
  left: 16px;
  z-index: 1;
  max-width: calc(100% - 56px);
  font-size: 0.9rem;
  text-align: left;
  transform: none;
  pointer-events: none;
}

.weapon-info-button {
  position: absolute;
  top: 20px;
  right: 32px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 1;
}

.weapon-info-button:hover,
.icon-button:hover {
  border-color: var(--line-hot);
}

.slot-label {
  justify-self: start;
  color: transparent;
  font-size: 0.67rem;
  text-transform: uppercase;
  font-weight: 900;
}

.weapon-art {
  align-self: center;
  width: min(140px, 96%);
  height: 84px;
  object-fit: contain;
  filter: drop-shadow(0 8px 7px rgba(0, 0, 0, 0.48));
  pointer-events: none;
}

.weapon-card strong {
  min-width: 0;
  max-width: 100%;
  font-size: clamp(0.66rem, 1.25vw, 0.88rem);
  text-align: center;
  line-height: 1.05;
  text-shadow: 0 2px 3px rgba(0, 0, 0, 0.88);
  text-transform: uppercase;
  transform: translateY(-10px);
}

.modal-backdrop {
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.62);
  backdrop-filter: blur(6px);
  z-index: 10;
}

.pause-card {
  display: grid;
  gap: 10px;
  padding: 18px;
}

.pause-card span {
  color: var(--muted);
}

.weapon-info-card {
  width: min(760px, calc(100vw - 28px));
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 24%), var(--panel);
  box-shadow: var(--shadow);
  padding: 18px;
}

.weapon-info-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 16px;
}

.weapon-info-head p {
  margin: 0 0 4px;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 900;
}

.weapon-info-head h2 {
  margin: 0;
  font-size: 1.7rem;
}

.icon-button {
  width: 36px;
  height: 36px;
  border-radius: 7px;
  font-size: 1.3rem;
  font-weight: 900;
}

.icon-button.compact {
  width: 30px;
  height: 30px;
  font-size: 1rem;
}

.weapon-info-body {
  display: grid;
  grid-template-columns: minmax(210px, 0.85fr) minmax(260px, 1fr);
  gap: 16px;
}

.inventory-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  align-content: start;
}

.inventory-slot {
  aspect-ratio: 1;
  border: 1px solid rgba(111, 213, 255, 0.24);
  border-radius: 6px;
  background: rgba(17, 31, 41, 0.92);
  color: var(--text);
  display: grid;
  place-items: center;
  padding: 8px;
}

.inventory-slot.selected {
  border-color: var(--green);
  box-shadow: inset 0 0 0 2px rgba(116, 224, 108, 0.28);
}

.inventory-slot.empty {
  background: rgba(255, 255, 255, 0.035);
}

.inventory-art {
  width: min(78px, 86%);
  height: 58px;
  object-fit: contain;
  filter: drop-shadow(0 8px 7px rgba(0, 0, 0, 0.5));
  pointer-events: none;
}

.inventory-slot span {
  font-size: 0.72rem;
  color: var(--muted);
  text-align: center;
  font-weight: 900;
}

.weapon-stat-panel {
  min-width: 0;
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 14px;
  border: 1px solid rgba(111, 213, 255, 0.18);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.035);
  padding: 12px;
}

.weapon-stat-list {
  display: grid;
  gap: 8px;
}

.weapon-stat-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 9px 0;
}

.weapon-stat-row span {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.74rem;
  font-weight: 900;
}

.weapon-info-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.weapon-info-actions .primary-button,
.weapon-info-actions .secondary-button {
  min-height: 46px;
  margin-top: 0;
}

@media (max-width: 820px) {
  body {
    overflow: auto;
  }

  .game-screen {
    position: static;
    min-height: 100%;
  }

  .hud {
    align-items: stretch;
  }

  .hud-top {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hud-group,
  .hud-group.center {
    justify-content: center;
  }

  #game-canvas {
    width: 100%;
  }

  .arena-wrap {
    overflow: visible;
  }

  .tower-sidebar {
    position: static;
    width: 100%;
    min-width: 0;
  }

  .hud-bottom {
    grid-template-columns: 1fr;
  }

  .weapon-bar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .weapon-card {
    min-height: 152px;
  }

  .weapon-info-body {
    grid-template-columns: 1fr;
  }
}