@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@1&family=IBM+Plex+Mono:wght@500;600&family=Manrope:wght@500;700;800&display=swap');

:root {
  --bg: #090807;
  --ink: #dcd5c8;
  --muted: #5a5248;
  --accent: #b88a24;
  --accent-bright: #d0a030;
  --panel: #0e0c0a;
  --border: #222018;
  --font-serif: 'DM Serif Display', Georgia, serif;
  --font-body: 'Manrope', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

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

html,
body,
#app {
  width: 100%;
  min-width: 320px;
  height: 100%;
  margin: 0;
}

body {
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  touch-action: none;
}

button,
a {
  font: inherit;
}

#app {
  position: relative;
  isolation: isolate;
}

#gameCanvas {
  position: fixed;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  background: var(--bg);
}

.screen-flash {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  opacity: 0;
  background: radial-gradient(circle, rgba(255, 210, 140, 0.55), rgba(200, 80, 20, 0.32) 52%, transparent 74%);
  transition: opacity 160ms ease;
}

.screen-flash.show {
  opacity: 1;
}

/* ── Flight bar ─────────────────────────────────── */

.flight-bar {
  position: fixed;
  top: max(14px, env(safe-area-inset-top));
  left: 14px;
  right: 14px;
  z-index: 10;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 5px;
}

.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
}

.brand-mark img {
  display: block;
  width: 28px;
  height: auto;
}

.flight-title {
  min-width: 0;
}

.flight-title h1 {
  overflow: hidden;
  margin: 0;
  color: var(--ink);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.05rem, 2.2vw, 1.5rem);
  font-weight: 400;
  line-height: 1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.flight-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hud-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  min-width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 120ms, border-color 120ms;
}

.hud-button:not(:disabled):hover {
  color: var(--ink);
  border-color: var(--accent);
}

.hud-button:disabled {
  cursor: default;
  opacity: 0.22;
}

.hud-button.is-muted {
  color: #5f4033;
  border-color: #5f4033;
}

.btn-icon {
  display: block;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ── Pause / play icon morphing ─────────────────── */

.icon-pause,
.icon-play {
  transform-box: fill-box;
  transform-origin: center;
  transition: opacity 180ms ease, transform 180ms ease;
}

.icon-play {
  opacity: 0;
  transform: scale(0.65);
}

#pauseButton.is-paused .icon-pause {
  opacity: 0;
  transform: scale(0.65);
}

#pauseButton.is-paused .icon-play {
  opacity: 1;
  transform: scale(1);
}

/* ── Music / mute icon ──────────────────────────── */

@keyframes wave-pulse {
  0%, 100% { opacity: 0.25; }
  50% { opacity: 1; }
}

.wave {
  transition: opacity 200ms ease;
}

.wave-1 {
  animation: wave-pulse 1.6s ease-in-out infinite;
}

.wave-2 {
  animation: wave-pulse 1.6s ease-in-out infinite 0.45s;
}

#audioButton.is-muted .wave-1,
#audioButton.is-muted .wave-2 {
  animation: none;
  opacity: 0;
}

.mute-slash {
  stroke-dasharray: 23;
  stroke-dashoffset: 23;
  transition: stroke-dashoffset 220ms ease;
}

#audioButton.is-muted .mute-slash {
  stroke-dashoffset: 0;
}

/* ── Readout stack ──────────────────────────────── */

.readout-stack {
  position: fixed;
  top: calc(max(14px, env(safe-area-inset-top)) + 68px);
  left: 14px;
  z-index: 9;
  display: grid;
  width: min(188px, calc(100vw - 28px));
  gap: 4px;
  pointer-events: none;
}

.readout {
  display: grid;
  grid-template-columns: minmax(58px, 1fr) auto;
  align-items: baseline;
  gap: 8px;
  padding: 6px 8px 6px 10px;
  border-left: 2px solid var(--accent);
  background: rgba(9, 8, 7, 0.72);
}

.readout span {
  display: block;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.readout strong {
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1;
  text-align: right;
  white-space: nowrap;
}

/* ── Leaderboard ───────────────────────────────── */

.leaderboard-panel {
  position: fixed;
  top: calc(max(14px, env(safe-area-inset-top)) + 222px);
  left: 14px;
  z-index: 9;
  width: min(228px, calc(100vw - 28px));
  padding: 12px 12px 10px;
  background:
    linear-gradient(180deg, rgba(184, 138, 36, 0.11), transparent 52%),
    rgba(9, 8, 7, 0.82);
  border: 1px solid var(--border);
  border-top: 2px solid var(--accent);
  border-radius: 5px;
  pointer-events: auto;
}

.leaderboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.leaderboard-header p {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.leaderboard-header span {
  flex: 0 0 auto;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.54rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.score-list {
  display: grid;
  gap: 2px;
  min-height: 168px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: score-rank;
}

.score-list li {
  counter-increment: score-rank;
  display: grid;
  grid-template-columns: 22px minmax(42px, 1fr) auto;
  align-items: center;
  gap: 8px;
  min-height: 26px;
  padding: 3px 5px;
  border-left: 1px solid rgba(184, 138, 36, 0.32);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  line-height: 1;
}

.score-list li::before {
  content: counter(score-rank, decimal-leading-zero);
  color: rgba(220, 213, 200, 0.34);
  font-size: 0.56rem;
}

.score-list li:first-child {
  color: #f4d072;
}

.score-list li.highlight {
  background: rgba(184, 138, 36, 0.18);
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px rgba(208, 160, 48, 0.22);
}

.score-list .initials {
  overflow: hidden;
  text-overflow: ellipsis;
}

.score-list .score-value {
  color: var(--accent-bright);
  font-size: 0.66rem;
  white-space: nowrap;
}

.score-list .loading {
  grid-template-columns: 1fr;
  align-content: center;
  min-height: 64px;
  color: var(--muted);
  text-align: center;
}

.score-list .loading::before {
  content: none;
}

/* ── Message panel ──────────────────────────────── */

.message-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 12;
  display: grid;
  width: min(420px, calc(100vw - 32px));
  gap: 14px;
  padding: 26px 24px 24px;
  background: rgba(9, 8, 7, 0.97);
  border: 1px solid var(--border);
  border-top: 2px solid var(--accent);
  border-radius: 4px;
  text-align: left;
  transform: translate(-50%, -50%);
}

.message-panel[hidden] {
  display: none;
}

#messageKicker {
  display: block;
  margin: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#messageKicker:empty {
  display: none;
}

.message-panel h2 {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(2.4rem, 8vw, 4rem);
  font-weight: 400;
  line-height: 0.9;
}

.message-score {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
}

.controls-hint {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  opacity: 0.5;
}

.message-panel button {
  justify-self: start;
  min-width: 118px;
  min-height: 42px;
  padding: 0 18px;
  border: none;
  border-radius: 4px;
  background: var(--accent);
  color: #18120a;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 700;
  transition: background 120ms, transform 110ms;
}

.message-panel button:hover {
  background: var(--accent-bright);
  transform: translateY(-1px);
}

body.is-running .message-panel {
  display: none;
}

/* ── Initials modal ─────────────────────────────── */

.initials-modal {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(5, 5, 4, 0.72);
}

.initials-modal[hidden] {
  display: none;
}

.initials-card {
  display: grid;
  width: min(360px, 100%);
  gap: 12px;
  padding: 24px 22px 22px;
  background: rgba(9, 8, 7, 0.98);
  border: 1px solid var(--border);
  border-top: 2px solid var(--accent);
  border-radius: 5px;
  box-shadow: 0 22px 80px rgba(0, 0, 0, 0.48);
}

.modal-kicker {
  margin: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.initials-card h2 {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(2rem, 9vw, 3rem);
  font-weight: 400;
  line-height: 0.95;
}

.modal-score {
  color: var(--accent-bright);
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
}

.initials-card label {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.initials-card input {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #14110e;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.initials-card input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(184, 138, 36, 0.22);
}

.error-text {
  min-height: 16px;
  margin: 0;
  color: #e07a55;
  font-family: var(--font-mono);
  font-size: 0.66rem;
}

.initials-card button {
  justify-self: start;
  min-width: 128px;
  min-height: 44px;
  padding: 0 18px;
  border: none;
  border-radius: 4px;
  background: var(--accent);
  color: #18120a;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 700;
  transition: background 120ms, transform 110ms;
}

.initials-card button:hover {
  background: var(--accent-bright);
  transform: translateY(-1px);
}

.initials-card button:disabled {
  cursor: progress;
  opacity: 0.58;
  transform: none;
}

/* ── Responsive ─────────────────────────────────── */

@media (pointer: coarse) {
  .hud-button {
    width: 44px;
    min-width: 44px;
    height: 44px;
  }

  .readout {
    min-height: 42px;
    align-items: center;
  }

  /* 4 readouts × 42px + 3 gaps × 4px + 8px breathing room = 256px */
  .leaderboard-panel {
    top: calc(max(14px, env(safe-area-inset-top)) + 256px);
  }

  .message-panel button {
    min-height: 48px;
  }

  .initials-card button {
    min-height: 48px;
  }
}

@media (max-width: 720px) {
  .flight-bar {
    left: 10px;
    right: 10px;
    padding: 8px 10px;
    gap: 8px;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
  }

  .brand-mark img {
    width: 24px;
  }

  .readout-stack {
    top: auto;
    right: 10px;
    bottom: max(10px, env(safe-area-inset-bottom));
    left: 10px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: auto;
    gap: 4px;
  }

  .readout span {
    font-size: 0.56rem;
  }

  .readout strong {
    font-size: 0.82rem;
  }

  .leaderboard-panel {
    top: calc(max(10px, env(safe-area-inset-top)) + 62px);
    left: 10px;
    width: min(176px, calc(100vw - 20px));
    padding: 9px;
  }

  .score-list {
    min-height: 132px;
  }

  .score-list li {
    grid-template-columns: 18px minmax(36px, 1fr) auto;
    gap: 6px;
    min-height: 23px;
    font-size: 0.6rem;
  }

  .score-list .score-value {
    font-size: 0.58rem;
  }

  .message-panel {
    padding: 20px 18px;
    gap: 12px;
  }
}

@media (max-width: 430px) {
  .flight-title h1 {
    font-size: 0.95rem;
  }

  .message-panel h2 {
    font-size: 2.1rem;
  }
}