:root {
  color-scheme: dark;
  --bg-top: #10253b;
  --bg-mid: #0a1624;
  --bg-bottom: #03070d;
  --panel: rgba(8, 15, 28, 0.58);
  --panel-strong: rgba(10, 19, 35, 0.82);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f4f7fb;
  --muted: #b6c0ce;
  --orange: #ff8640;
  --cyan: #5ae6ff;
  --gold: #ffd15c;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top, rgba(255, 154, 84, 0.18), transparent 28%),
    radial-gradient(circle at 20% 20%, rgba(90, 230, 255, 0.12), transparent 24%),
    linear-gradient(180deg, var(--bg-top) 0%, var(--bg-mid) 48%, var(--bg-bottom) 100%);
  color: var(--text);
  touch-action: none;
}

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

#gameCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.hud-bar {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  z-index: 3;
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  justify-content: space-between;
  padding: max(0.55rem, env(safe-area-inset-top)) clamp(0.55rem, 1.8vw, 1rem) 0;
  pointer-events: none;
}

.hud-leading {
  display: flex;
  gap: 0.4rem;
  align-items: flex-start;
  max-width: min(19rem, 58vw);
  pointer-events: none;
}

.brand-panel,
.score-card,
.overlay-card {
  backdrop-filter: blur(18px);
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.brand-panel {
  width: min(17rem, 52vw);
  padding: 0.45rem;
  border-radius: 1rem;
  pointer-events: auto;
}

.panel-actions {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.35rem;
}

.panel-body {
  display: grid;
  gap: 0.34rem;
  margin-top: 0.34rem;
}

.panel-tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.9rem;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.collapsible-panel {
  transition: transform 180ms ease, opacity 180ms ease, background 180ms ease;
}

.collapsible-panel.collapsed {
  width: auto;
  padding: 0.18rem;
  border-radius: 999px;
}

.collapsible-panel.collapsed .panel-body {
  display: none;
}

.collapsible-panel.collapsed .panel-tag {
  display: none;
}

.collapsible-panel.collapsed .panel-actions {
  gap: 0;
}

.eyebrow {
  margin: 0 0 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.68);
}

.overlay-card h2 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 0.92;
  letter-spacing: -0.06em;
}

.mode-copy,
.control-hint,
.overlay-summary,
.score-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.28;
}

.mode-copy {
  color: var(--text);
  font-weight: 500;
}

.scoreboard {
  display: grid;
  grid-template-columns: repeat(2, minmax(9rem, 11rem));
  gap: 0.5rem;
  justify-content: end;
  pointer-events: none;
}

.scoreboard.single {
  grid-template-columns: minmax(7rem, 8.25rem);
}

.score-card {
  position: relative;
  overflow: hidden;
  padding: 0.56rem 0.65rem 0.6rem;
  border-radius: 0.95rem;
}

.score-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 0.26rem;
  background: var(--accent, var(--orange));
}

.score-card strong {
  display: block;
  margin: 0 0 0.18rem;
  font-size: 0.8rem;
  letter-spacing: -0.03em;
}

.lives-display {
  display: flex;
  flex-wrap: wrap;
  gap: 0.08rem;
  min-height: 0.88rem;
  margin: 0 0 0.18rem;
  color: var(--accent, var(--orange));
  font-size: 0.8rem;
  line-height: 1;
}

.heart {
  display: inline-block;
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.18));
}

.heart.empty {
  color: rgba(255, 255, 255, 0.14);
  filter: none;
}

.score-value {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1;
}

.score-status {
  display: inline-flex;
  margin-top: 0.16rem;
  padding: 0.1rem 0.28rem;
  border-radius: 999px;
  font-size: 0.52rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(255, 255, 255, 0.08);
}

.score-status.out {
  background: rgba(255, 97, 97, 0.16);
  color: #ffc1c1;
}

.score-status.compact-hidden {
  display: none;
}

.control-hint {
  max-width: none;
}

.ghost-button,
.primary-button,
.panel-toggle {
  appearance: none;
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 180ms ease, filter 180ms ease, background 180ms ease;
}

.ghost-button {
  padding: 0.42rem 0.68rem;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  pointer-events: auto;
}

.restart-button {
  min-height: 1.9rem;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.primary-button {
  padding: 0.9rem 1.25rem;
  background: linear-gradient(135deg, var(--orange), #ffb65c);
  color: #1b0b00;
}

.panel-toggle {
  min-height: 1.9rem;
  padding: 0.42rem 0.66rem;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  font-size: 0.64rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.ghost-button:hover,
.primary-button:hover,
.panel-toggle:hover {
  transform: translateY(-1px);
  filter: brightness(1.04);
}

body.touch-mode .scoreboard.single .score-card strong {
  display: none;
}

.overlay {
  position: absolute;
  inset: 0;
  z-index: 4;
  display: grid;
  place-items: center;
  background: rgba(1, 4, 9, 0.54);
  padding: 1.5rem;
}

.overlay-card {
  width: min(100%, 30rem);
  padding: 1.35rem;
  border-radius: 1.5rem;
}

.overlay-summary {
  margin: 0.85rem 0 1.4rem;
}

.hidden {
  display: none;
}

@media (max-width: 900px) {
  .hud-bar {
    padding-left: 0.45rem;
    padding-right: 0.45rem;
  }

  .hud-leading {
    max-width: min(11rem, 56vw);
    gap: 0.3rem;
  }

  .scoreboard,
  .scoreboard.single {
    grid-template-columns: repeat(auto-fit, minmax(5.6rem, 6.3rem));
    gap: 0.28rem;
  }

  .brand-panel {
    width: min(11rem, 56vw);
    padding: 0.34rem;
    border-radius: 0.85rem;
  }

  .panel-body {
    gap: 0.22rem;
    margin-top: 0.24rem;
  }

  .panel-tag,
  .panel-toggle,
  .restart-button {
    font-size: 0.58rem;
  }

  .panel-tag,
  .panel-toggle,
  .ghost-button {
    min-height: 1.65rem;
  }

  .ghost-button,
  .panel-toggle {
    padding: 0.28rem 0.5rem;
  }

  .mode-copy,
  .control-hint,
  .overlay-summary,
  .score-meta {
    font-size: 0.66rem;
    line-height: 1.16;
  }

  .score-card {
    padding: 0.32rem 0.36rem 0.36rem;
    border-radius: 0.78rem;
  }

  .score-card strong {
    margin: 0 0 0.08rem;
    font-size: 0.58rem;
  }

  .lives-display {
    min-height: 0.64rem;
    margin-bottom: 0.12rem;
    font-size: 0.68rem;
  }

  .score-value {
    font-size: 0.92rem;
  }

  .score-meta {
    font-size: 0.52rem;
    line-height: 1.08;
  }

  .score-status {
    margin-top: 0.12rem;
    padding: 0.06rem 0.2rem;
    font-size: 0.44rem;
  }
}

@media (max-width: 520px), (max-height: 720px) {
  .hud-bar {
    gap: 0.4rem;
    padding-left: 0.35rem;
    padding-right: 0.35rem;
  }

  .hud-leading {
    max-width: min(8.9rem, 54vw);
  }

  .brand-panel {
    width: min(8.9rem, 54vw);
    padding: 0.26rem;
    border-radius: 0.72rem;
  }

  .collapsible-panel.collapsed {
    padding: 0.12rem;
  }

  .panel-body {
    gap: 0.18rem;
    margin-top: 0.18rem;
  }

  .panel-tag,
  .panel-toggle,
  .restart-button {
    font-size: 0.54rem;
  }

  .panel-toggle,
  .ghost-button {
    min-height: 1.48rem;
    padding: 0.22rem 0.4rem;
  }

  .mode-copy,
  .control-hint,
  .overlay-summary,
  .score-meta {
    font-size: 0.58rem;
  }

  .scoreboard,
  .scoreboard.single {
    grid-template-columns: minmax(4.9rem, 5.6rem);
    gap: 0.22rem;
  }

  .score-card {
    padding: 0.24rem 0.28rem 0.28rem;
  }

  .score-card strong {
    font-size: 0.52rem;
  }

  .lives-display {
    min-height: 0.56rem;
    font-size: 0.58rem;
  }

  .score-value {
    font-size: 0.8rem;
  }

  .score-status {
    font-size: 0.4rem;
  }
}

@media (max-width: 400px), (max-height: 640px) {
  .hud-leading {
    max-width: min(7.8rem, 52vw);
  }

  .brand-panel {
    width: min(7.8rem, 52vw);
  }

  .scoreboard,
  .scoreboard.single {
    grid-template-columns: minmax(4.4rem, 5rem);
  }
}