:root {
  --bg: #0e1230;
  --bg2: #161b47;
  --accent: #4dd0ff;
  --good: #46e08a;
  --bad: #ff5d73;
  --gold: #ffd54a;
  --text: #eaf0ff;
  --muted: #9aa6d6;
  --panel: rgba(18, 22, 55, 0.92);
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  overflow: hidden;
  user-select: none;
}

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#game {
  display: block;
  background: linear-gradient(180deg, #10173f 0%, #0b0f2b 100%);
  touch-action: none;
  cursor: pointer;
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.6);
}

/* ---------- HUD ---------- */
#hud {
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 520px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  z-index: 10;
  pointer-events: none;
}
.hud-left, .hud-right {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 62px;
  background: rgba(0,0,0,0.28);
  border-radius: 14px;
  padding: 6px 10px;
  backdrop-filter: blur(4px);
}
.hud-label { font-size: 10px; letter-spacing: 2px; color: var(--muted); }
.hud-left span:last-child, .hud-right span:last-child {
  font-size: 22px; font-weight: 800;
}
#hud-mob { color: var(--good); }
.hud-center { flex: 1; }
#progress-track {
  height: 10px;
  background: rgba(0,0,0,0.35);
  border-radius: 10px;
  overflow: hidden;
}
#progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--good));
  border-radius: 10px;
  transition: width 0.15s linear;
}

/* ---------- Overlays ---------- */
.overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 30%, rgba(30,40,90,0.7), rgba(6,9,26,0.92));
  backdrop-filter: blur(3px);
  padding: 20px;
}
.hidden { display: none !important; }

.panel {
  width: 100%;
  max-width: 400px;
  background: var(--panel);
  border: 1px solid rgba(120,140,220,0.25);
  border-radius: 24px;
  padding: 28px 24px;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0,0,0,0.55);
  animation: pop 0.35s cubic-bezier(.2,.9,.3,1.4);
}
@keyframes pop {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.logo {
  font-size: 44px;
  font-weight: 900;
  letter-spacing: 1px;
  line-height: 0.95;
  background: linear-gradient(180deg, #fff, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.logo span { display: block; color: var(--gold); -webkit-text-fill-color: var(--gold); font-size: 26px; }
.tagline { color: var(--muted); margin: 14px 0 20px; font-size: 14px; }

#result-title { font-size: 34px; font-weight: 900; letter-spacing: 1px; }
#result-title.win { color: var(--good); }
#result-title.lose { color: var(--bad); }
#result-sub { color: var(--muted); margin: 8px 0 18px; font-size: 14px; min-height: 18px; }

.result-stats {
  display: flex; gap: 16px; justify-content: center; margin-bottom: 22px;
}
.result-stats div {
  background: rgba(0,0,0,0.28);
  border-radius: 16px;
  padding: 12px 20px;
  display: flex; flex-direction: column;
}
.result-stats span { font-size: 30px; font-weight: 800; }
.result-stats small { color: var(--muted); font-size: 11px; letter-spacing: 1px; text-transform: uppercase; }

.btn {
  display: block;
  width: 100%;
  margin: 10px 0 0;
  padding: 15px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 1px;
  border: none;
  border-radius: 16px;
  cursor: pointer;
  transition: transform 0.08s, filter 0.15s;
}
.btn:active { transform: translateY(2px) scale(0.99); }
.btn-primary {
  background: linear-gradient(180deg, var(--accent), #2a9fd6);
  color: #05213a;
  box-shadow: 0 8px 0 #1c6f97, 0 12px 24px rgba(0,0,0,0.4);
}
.btn-primary:active { box-shadow: 0 4px 0 #1c6f97, 0 6px 14px rgba(0,0,0,0.4); }
.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid rgba(140,160,230,0.3);
  font-size: 14px;
  padding: 11px;
}

.how {
  margin-top: 22px;
  text-align: left;
  background: rgba(0,0,0,0.22);
  border-radius: 16px;
  padding: 14px 16px;
  font-size: 13px;
  color: var(--muted);
}
.how strong { color: var(--text); display: block; margin-bottom: 8px; font-size: 13px; letter-spacing: 1px; }
.how ul { padding-left: 18px; }
.how li { margin: 5px 0; line-height: 1.4; }
.how b { color: var(--accent); }

/* ---------- Level select ---------- */
#level-select {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-bottom: 18px;
}
.lvl-chip {
  aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  font-weight: 800;
  font-size: 16px;
  cursor: pointer;
  background: rgba(0,0,0,0.28);
  border: 1px solid rgba(120,140,220,0.2);
  color: var(--text);
  transition: transform 0.08s, background 0.15s;
}
.lvl-chip:active { transform: scale(0.92); }
.lvl-chip.selected {
  background: linear-gradient(180deg, var(--accent), #2a9fd6);
  color: #05213a;
  border-color: transparent;
}
.lvl-chip.locked { opacity: 0.4; cursor: not-allowed; }
.lvl-chip .star { position: absolute; }