:root {
  --gold: #f2c14e;
  --gold-bright: #ffe08a;
  --holy: #9fe8ff;
  --holy-bright: #d8f6ff;
  --blood: #c0392b;
  --bg-0: #0a0a12;
  --bg-1: #15131f;
  --ink: #e8e4d8;
  --shadow: rgba(0, 0, 0, 0.6);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: #000;
  font-family: "Trebuchet MS", "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  user-select: none;
  -webkit-user-select: none;
  cursor: crosshair;
}

#app { position: fixed; inset: 0; }

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

.hidden { display: none !important; }

/* ---------- Overlays ---------- */
.overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at center, rgba(20, 18, 30, 0.82), rgba(5, 5, 10, 0.96));
  backdrop-filter: blur(4px);
  z-index: 20;
  animation: fadein 0.4s ease;
}

@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }

.overlay-inner {
  text-align: center;
  max-width: 620px;
  padding: 40px;
}

.title {
  font-size: clamp(48px, 9vw, 104px);
  letter-spacing: 8px;
  font-weight: 900;
  background: linear-gradient(180deg, var(--gold-bright), var(--gold) 55%, #8a6a1f);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 40px rgba(242, 193, 78, 0.35);
  filter: drop-shadow(0 4px 0 rgba(0,0,0,0.4));
}

.title.gameover {
  background: linear-gradient(180deg, #ff8a7a, var(--blood) 60%, #5a1410);
  -webkit-background-clip: text;
  background-clip: text;
}

.subtitle {
  margin-top: 6px;
  font-size: clamp(14px, 2.2vw, 20px);
  color: var(--holy);
  letter-spacing: 2px;
  opacity: 0.9;
}

.how-to {
  margin: 28px auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 26px;
  font-size: 15px;
  max-width: 460px;
  text-align: left;
  opacity: 0.92;
}
.how-to > div { display: flex; align-items: center; gap: 8px; }

kbd {
  display: inline-block;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.22);
  border-bottom-width: 3px;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 12px;
  font-family: inherit;
  font-weight: 700;
  color: var(--gold-bright);
  min-width: 22px;
  text-align: center;
}

.btn {
  margin-top: 18px;
  font-family: inherit;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 3px;
  color: #1a1408;
  background: linear-gradient(180deg, var(--gold-bright), var(--gold));
  border: none;
  border-radius: 10px;
  padding: 16px 40px;
  cursor: pointer;
  box-shadow: 0 6px 0 #8a6a1f, 0 12px 30px rgba(242,193,78,0.35);
  transition: transform 0.08s ease, box-shadow 0.08s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 0 #8a6a1f, 0 16px 36px rgba(242,193,78,0.45); }
.btn:active { transform: translateY(4px); box-shadow: 0 2px 0 #8a6a1f; }

.hint { margin-top: 16px; font-size: 13px; opacity: 0.5; letter-spacing: 1px; }
.loading-text { color: var(--gold); letter-spacing: 3px; }

/* ---------- HUD ---------- */
#hud {
  position: absolute; inset: 0;
  pointer-events: none;
  z-index: 10;
  padding: 18px;
}

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

.bars { width: min(340px, 42vw); display: flex; flex-direction: column; gap: 7px; }
.bar-row { display: flex; align-items: center; gap: 8px; }
.bar-label {
  font-size: 11px; font-weight: 800; letter-spacing: 1px;
  width: 52px; text-align: right; color: var(--gold-bright);
  text-shadow: 0 1px 2px #000;
}
.bar {
  position: relative; flex: 1; height: 18px;
  background: rgba(0,0,0,0.55);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 4px;
  overflow: hidden;
}
.bar.xp { height: 8px; }
.bar-fill { position: absolute; left: 0; top: 0; bottom: 0; width: 100%; transition: width 0.18s ease; }
.bar-fill.hp { background: linear-gradient(90deg, #7a1810, var(--blood), #ff6b5a); }
.bar-fill.faith { background: linear-gradient(90deg, #2a6fa0, var(--holy), var(--holy-bright)); }
.bar-fill.xp { background: linear-gradient(90deg, #8a6a1f, var(--gold), var(--gold-bright)); }
.bar-text {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; color: #fff;
  text-shadow: 0 1px 2px #000;
}

.stats { display: flex; gap: 18px; text-align: center; }
.stat span { display: block; font-size: 28px; font-weight: 900; color: var(--gold-bright); text-shadow: 0 2px 4px #000; line-height: 1; }
.stat label { font-size: 10px; letter-spacing: 2px; opacity: 0.7; }
.combo-stat span { color: var(--holy-bright); transition: transform 0.1s ease; }
.combo-stat.pulse span { transform: scale(1.5); }

.wave-banner {
  position: absolute; top: 28%; left: 50%; transform: translateX(-50%);
  font-size: clamp(28px, 6vw, 64px); font-weight: 900; letter-spacing: 6px;
  color: var(--gold-bright);
  text-shadow: 0 0 30px rgba(242,193,78,0.6), 0 4px 8px #000;
  opacity: 0; pointer-events: none; text-align: center;
}
.wave-banner.show { animation: bannerPop 2.2s ease forwards; }
@keyframes bannerPop {
  0% { opacity: 0; transform: translateX(-50%) scale(0.6); }
  15% { opacity: 1; transform: translateX(-50%) scale(1.05); }
  80% { opacity: 1; transform: translateX(-50%) scale(1); }
  100% { opacity: 0; transform: translateX(-50%) scale(1); }
}

.ability-bar {
  position: absolute; bottom: 18px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 12px;
}
.ability {
  position: relative;
  width: 76px; height: 64px;
  background: rgba(10,10,20,0.7);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 8px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 4px;
  overflow: hidden;
}
.ability kbd { font-size: 10px; }
.ability span { font-size: 10px; letter-spacing: 1px; opacity: 0.85; }
.ability .cooldown {
  position: absolute; left: 0; right: 0; bottom: 0; top: 0;
  background: rgba(0,0,0,0.72);
  transform-origin: bottom;
  transform: scaleY(0);
}
.ability.ready { box-shadow: 0 0 12px rgba(159,232,255,0.3); }

/* ---------- Upgrade cards ---------- */
.levelup-title {
  font-size: clamp(32px, 6vw, 56px); font-weight: 900; letter-spacing: 6px;
  color: var(--holy-bright);
  text-shadow: 0 0 40px rgba(159,232,255,0.5);
}
.upgrade-cards { margin-top: 28px; display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.upgrade-card {
  width: 200px; min-height: 230px;
  background: linear-gradient(180deg, rgba(30,28,42,0.95), rgba(16,14,24,0.95));
  border: 1px solid rgba(159,232,255,0.3);
  border-radius: 12px;
  padding: 22px 16px;
  cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  pointer-events: auto;
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}
.upgrade-card:hover {
  transform: translateY(-8px);
  border-color: var(--gold-bright);
  box-shadow: 0 12px 40px rgba(242,193,78,0.35);
}
.upgrade-icon { font-size: 46px; line-height: 1; filter: drop-shadow(0 4px 6px rgba(0,0,0,0.5)); }
.upgrade-name { font-size: 18px; font-weight: 800; color: var(--gold-bright); letter-spacing: 1px; }
.upgrade-desc { font-size: 13px; opacity: 0.85; line-height: 1.5; }

/* ---------- Game over ---------- */
.final-stats { margin: 30px 0; }
.stat-big span { display: block; font-size: 64px; font-weight: 900; color: var(--gold-bright); text-shadow: 0 0 30px rgba(242,193,78,0.5); }
.stat-big label { font-size: 13px; letter-spacing: 3px; opacity: 0.7; }
.final-row { margin-top: 22px; display: flex; gap: 40px; justify-content: center; }
.final-row span { display: block; font-size: 30px; font-weight: 800; color: var(--holy); }
.final-row label { font-size: 11px; letter-spacing: 2px; opacity: 0.6; }
.best { margin-top: 20px; font-size: 15px; color: var(--gold); letter-spacing: 2px; }

/* damage numbers */
#fx-layer { position: absolute; inset: 0; pointer-events: none; z-index: 9; overflow: hidden; }
.dmg {
  position: absolute;
  font-weight: 900;
  font-size: 18px;
  text-shadow: 0 2px 3px #000;
  pointer-events: none;
  transform: translate(-50%, -50%);
  animation: dmgFloat 0.85s ease-out forwards;
}
.dmg.crit { font-size: 28px; color: var(--gold-bright); }
.dmg.holy { color: var(--holy-bright); }
.dmg.player { color: #ff6b5a; }
@keyframes dmgFloat {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
  20% { opacity: 1; transform: translate(-50%, -120%) scale(1.1); }
  100% { opacity: 0; transform: translate(-50%, -260%) scale(0.9); }
}

#vignette {
  position: absolute; inset: 0; pointer-events: none; z-index: 8;
  box-shadow: inset 0 0 200px rgba(120, 10, 10, 0);
  transition: box-shadow 0.15s ease;
}

.attribution {
  margin-top: 22px;
  font-size: 13px;
  letter-spacing: 1px;
  opacity: 0.6;
}
.attribution a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 193, 78, 0.4);
  transition: color 0.15s ease, border-color 0.15s ease;
}
.attribution a:hover { color: var(--gold-bright); border-color: var(--gold-bright); }

#credit-badge {
  position: absolute;
  bottom: 10px; right: 14px;
  z-index: 15;
  font-size: 11px;
  letter-spacing: 1px;
  color: rgba(242, 193, 78, 0.55);
  text-decoration: none;
  pointer-events: auto;
  text-shadow: 0 1px 2px #000;
  transition: color 0.15s ease;
}
#credit-badge:hover { color: var(--gold-bright); }

@media (max-width: 640px) {
  .ability { width: 60px; height: 54px; }
  .stats { gap: 10px; }
  .stat span { font-size: 20px; }
  #credit-badge { font-size: 10px; }
}