:root {
  color-scheme: dark;
  --bg-top: #08111f;
  --bg-bottom: #02050b;
  --panel: rgba(9, 18, 33, 0.82);
  --panel-strong: rgba(12, 24, 42, 0.94);
  --line: rgba(145, 229, 255, 0.22);
  --text: #f4fbff;
  --muted: #93aac3;
  --cyan: #77f4ff;
  --lime: #c0ff75;
  --rose: #ff7f9f;
  --amber: #ffd970;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.45);
  --safe-top: max(env(safe-area-inset-top), 12px);
  --safe-right: max(env(safe-area-inset-right), 12px);
  --safe-bottom: max(env(safe-area-inset-bottom), 12px);
  --safe-left: max(env(safe-area-inset-left), 12px);
  --font-display: "Trebuchet MS", "Avenir Next", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top, rgba(62, 123, 255, 0.22), transparent 30%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom) 70%);
  color: var(--text);
  font-family: var(--font-body);
  overflow: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(119, 244, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(119, 244, 255, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.35;
  pointer-events: none;
}

#app-shell {
  position: relative;
  min-height: 100vh;
  padding: var(--safe-top) var(--safe-right) var(--safe-bottom) var(--safe-left);
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 12px;
}

.hud {
  position: relative;
  z-index: 4;
}

.hud-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.brand-block h1,
.center-card h2,
.modal-card h2 {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: 0.02em;
}

.brand-block h1 {
  font-size: clamp(1.3rem, 2vw + 1rem, 2.2rem);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 0.68rem;
}

.player-name,
.save-summary,
.leaderboard-empty {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.status-cluster {
  display: flex;
  gap: 8px;
}

.status-pill,
.panel,
.control-hint,
.center-card,
.modal-card {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.status-pill {
  min-width: 88px;
  padding: 10px 12px;
  border-radius: 16px;
}

.status-pill .label {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
}

.status-pill strong {
  display: block;
  margin-top: 4px;
  font-size: 1rem;
}

#game-column {
  min-height: 0;
}

#game-frame {
  position: relative;
  height: 100%;
  min-height: 420px;
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid rgba(135, 225, 255, 0.22);
  background: rgba(2, 8, 20, 0.72);
  box-shadow: var(--shadow);
}

#game-root {
  width: 100%;
  height: 100%;
}

#game-root canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.overlay-left,
.overlay-right {
  position: absolute;
  top: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: min(31vw, 184px);
}

.overlay-left {
  left: 14px;
}

.overlay-right {
  right: 14px;
}

.panel {
  border-radius: 18px;
  padding: 12px;
}

.compact {
  padding: 10px 12px;
}

.compact p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.45;
}

.panel-head,
.stat-grid div {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
}

.panel-head {
  margin-bottom: 8px;
  font-size: 0.84rem;
}

.meter {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.meter-fill {
  width: 40%;
  height: 100%;
  border-radius: inherit;
  transition: width 140ms ease-out;
}

.hp-fill {
  background: linear-gradient(90deg, var(--rose), #ffb49b);
}

.xp-fill {
  background: linear-gradient(90deg, var(--cyan), var(--lime));
}

.stat-grid {
  display: grid;
  gap: 10px;
}

.stat-grid div span {
  color: var(--muted);
  font-size: 0.74rem;
}

.center-card,
.modal-card {
  border-radius: 24px;
  padding: 20px;
}

.center-card {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(84%, 420px);
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 6;
}

.center-card p {
  color: var(--muted);
  line-height: 1.6;
}

.start-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 12px;
}

.secondary-button {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.leaderboard-card {
  margin-top: 16px;
  text-align: left;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 14px;
}

.leaderboard-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 10px;
}

.leaderboard-head span {
  color: var(--muted);
  font-size: 0.8rem;
}

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

.leaderboard-row {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
}

.leaderboard-rank {
  color: var(--cyan);
  font-weight: 700;
}

.leaderboard-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.leaderboard-name {
  font-weight: 700;
}

.leaderboard-detail {
  color: var(--muted);
  font-size: 0.78rem;
}

.compact-board {
  margin: 12px 0 16px;
}

.modal {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(3, 5, 10, 0.52);
  z-index: 7;
}

.modal-card {
  width: min(100%, 460px);
  background: var(--panel-strong);
}

.hidden {
  display: none;
}

.upgrade-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.upgrade-card {
  width: 100%;
  text-align: left;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 14px 16px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.upgrade-card strong,
.upgrade-card span {
  display: block;
}

.upgrade-card strong {
  font-size: 1rem;
}

.upgrade-card span {
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.45;
}

.controls-shell {
  display: grid;
  gap: 10px;
  z-index: 5;
}

.control-hint {
  padding: 12px 14px;
  border-radius: 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.control-hint span {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.4;
}

.touch-controls {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
}

.move-pad {
  position: relative;
  width: clamp(132px, 25vw, 178px);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(191, 247, 255, 0.24);
  background:
    radial-gradient(circle at 50% 50%, rgba(119, 244, 255, 0.16), rgba(119, 244, 255, 0.02) 60%),
    rgba(8, 20, 38, 0.72);
  box-shadow: var(--shadow);
  touch-action: none;
}

.move-thumb {
  position: absolute;
  width: 44%;
  aspect-ratio: 1;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(119, 244, 255, 0.85), rgba(83, 149, 255, 0.65));
  box-shadow: inset 0 2px 10px rgba(255, 255, 255, 0.3);
}

.action-stack {
  display: flex;
  gap: 12px;
}

.action-button {
  min-width: 92px;
  min-height: 52px;
  border: 0;
  border-radius: 18px;
  padding: 14px 18px;
  font-weight: 700;
  color: var(--text);
  font-family: var(--font-display);
  letter-spacing: 0.04em;
  touch-action: manipulation;
}

.primary-button {
  background: linear-gradient(135deg, #46dfff, #4e7dff);
}

.action-dash {
  background: linear-gradient(135deg, #72f5ff, #3b6fff);
}

.action-attack {
  background: linear-gradient(135deg, #ffd86c, #ff7d78);
}

button:active {
  transform: translateY(1px) scale(0.99);
}

@media (max-width: 900px) {
  .overlay-left,
  .overlay-right {
    width: min(38vw, 180px);
  }
}

@media (max-width: 720px) {
  #app-shell {
    gap: 10px;
  }

  .hud-top {
    align-items: stretch;
    flex-direction: column;
  }

  .status-cluster {
    justify-content: space-between;
  }

  #game-frame {
    min-height: 380px;
  }

  .overlay-left,
  .overlay-right {
    position: absolute;
    width: calc(50% - 20px);
    top: auto;
    bottom: 14px;
  }

  .overlay-left {
    left: 14px;
  }

  .overlay-right {
    right: 14px;
  }

  .controls-shell {
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .status-pill {
    min-width: 78px;
    padding: 9px 10px;
  }

  #game-frame {
    min-height: 350px;
    border-radius: 22px;
  }

  .panel,
  .center-card,
  .modal-card,
  .control-hint {
    border-radius: 16px;
  }

  .overlay-left,
  .overlay-right {
    width: calc(50% - 18px);
    gap: 8px;
    bottom: 12px;
  }

  .panel {
    padding: 10px;
  }

  .compact p,
  .control-hint span {
    font-size: 0.76rem;
  }

  .action-stack {
    gap: 10px;
  }

  .action-button {
    min-width: 82px;
    min-height: 48px;
    padding: 12px 14px;
  }

  .start-actions {
    flex-direction: column;
  }

  .leaderboard-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .leaderboard-row {
    grid-template-columns: 28px 1fr;
  }
}

@media (orientation: landscape) and (max-width: 960px) {
  #app-shell {
    grid-template-rows: auto 1fr;
  }

  .controls-shell {
    position: absolute;
    right: var(--safe-right);
    bottom: var(--safe-bottom);
    width: min(44vw, 340px);
  }

  .touch-controls {
    justify-content: flex-end;
  }

  .move-pad {
    width: 120px;
  }
}