/* ================================================================
   VOID BLOOM ― 虚空の花  |  Stylesheet
   ================================================================ */

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

:root {
  --void-deep: #050510;
  --void-mid: #0a0a1e;
  --glow-gold: #f4d58d;
  --glow-pink: #f472b6;
  --glow-cyan: #67e8f9;
  --glow-purple: #c084fc;
  --text-primary: #f0e6ff;
  --text-secondary: rgba(240, 230, 255, 0.6);
  --danger: #ff4466;
  --font-main: 'Outfit', 'Noto Sans JP', sans-serif;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--void-deep);
  font-family: var(--font-main);
  color: var(--text-primary);
  cursor: none;
}

/* ─── Canvas ─── */
#gameCanvas {
  display: block;
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  left: 0;
}

/* ─── Overlays ─── */
.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  background: rgba(5, 5, 16, 0.85);
  backdrop-filter: blur(20px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.6s ease;
}

.overlay.active {
  opacity: 1;
  pointer-events: all;
}

.hidden {
  display: none !important;
}

/* ─── Title Screen ─── */
.title-content {
  text-align: center;
  position: relative;
}

.title-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(244, 213, 141, 0.08) 0%, transparent 70%);
  pointer-events: none;
  animation: titleGlowPulse 4s ease-in-out infinite;
}

@keyframes titleGlowPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
  50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.6; }
}

.title-main {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 700;
  letter-spacing: 0.3em;
  background: linear-gradient(135deg, var(--glow-gold) 0%, var(--glow-pink) 50%, var(--glow-purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: none;
  filter: drop-shadow(0 0 30px rgba(244, 213, 141, 0.3));
  animation: titleFloat 6s ease-in-out infinite;
  position: relative;
}

@keyframes titleFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.title-sub {
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 200;
  letter-spacing: 0.5em;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.title-divider {
  width: 120px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glow-gold), transparent);
  margin: 2rem auto;
}

.title-tagline {
  font-size: clamp(0.85rem, 1.5vw, 1.1rem);
  font-weight: 300;
  color: var(--text-secondary);
  letter-spacing: 0.15em;
  margin-bottom: 2.5rem;
}

/* ─── Buttons ─── */
.glow-btn {
  position: relative;
  padding: 1rem 3rem;
  font-family: var(--font-main);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--void-deep);
  background: linear-gradient(135deg, var(--glow-gold), var(--glow-pink));
  border: none;
  border-radius: 60px;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.3s ease;
  outline: none;
}

.glow-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(244, 213, 141, 0.35);
}

.glow-btn:active {
  transform: translateY(0);
}

.glow-btn.small {
  padding: 0.7rem 2rem;
  font-size: 0.9rem;
  display: block;
  margin: 0.8rem auto;
  min-width: 200px;
}

.glow-btn.secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid rgba(240, 230, 255, 0.2);
}

.glow-btn.secondary:hover {
  border-color: var(--glow-gold);
  color: var(--glow-gold);
  box-shadow: 0 4px 20px rgba(244, 213, 141, 0.15);
}

.btn-shimmer {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% { left: -100%; }
  100% { left: 200%; }
}

/* ─── Controls Hint ─── */
.controls-hint {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
}

.control-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
}

kbd {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-family: var(--font-main);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--glow-gold);
  background: rgba(244, 213, 141, 0.08);
  border: 1px solid rgba(244, 213, 141, 0.2);
  border-radius: 6px;
}

/* ─── HUD ─── */
.hud {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  z-index: 50;
  pointer-events: none;
}

.hud-left, .hud-right {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.hud-right {
  align-items: flex-end;
}

.hud-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.hud-label {
  display: block;
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--text-secondary);
  margin-bottom: 0.15rem;
}

.hud-value {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  background: linear-gradient(135deg, var(--glow-gold), var(--glow-pink));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ─── Combo ─── */
.hud-combo {
  transition: opacity 0.3s ease;
}

.combo-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--glow-cyan);
  text-shadow: 0 0 20px rgba(103, 232, 249, 0.5);
}

.combo-bar {
  width: 100px;
  height: 3px;
  background: rgba(103, 232, 249, 0.15);
  border-radius: 2px;
  margin-top: 0.3rem;
  overflow: hidden;
  position: relative;
}

/* ─── Lives ─── */
.lives-dots {
  display: flex;
  gap: 6px;
}

.life-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--glow-gold);
  box-shadow: 0 0 8px rgba(244, 213, 141, 0.5);
  transition: all 0.3s ease;
}

.life-dot.lost {
  background: rgba(244, 213, 141, 0.15);
  box-shadow: none;
}

/* ─── Dash Bar ─── */
.dash-bar {
  width: 80px;
  height: 4px;
  background: rgba(192, 132, 252, 0.15);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 0.3rem;
}

.dash-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--glow-purple), var(--glow-pink));
  border-radius: 2px;
  transform-origin: left;
  transition: transform 0.1s linear;
}

/* ─── Wave Announce ─── */
.wave-announce {
  text-align: center;
  animation: waveIn 0.6s ease-out;
}

@keyframes waveIn {
  0% { transform: scale(0.5) translateY(-20px); opacity: 0; }
  100% { transform: scale(1) translateY(0); opacity: 1; }
}

.wave-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--text-secondary);
}

.wave-number {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--glow-cyan), var(--glow-purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ─── Pause Screen ─── */
.pause-content {
  text-align: center;
}

.pause-title {
  font-size: 3rem;
  font-weight: 200;
  letter-spacing: 0.5em;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* ─── Game Over ─── */
.gameover-content {
  text-align: center;
  max-width: 400px;
}

.gameover-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: 0.15em;
  background: linear-gradient(135deg, var(--danger), var(--glow-purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 2rem;
}

.gameover-stats {
  margin-bottom: 2rem;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(240, 230, 255, 0.06);
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
}

.stat-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--glow-gold);
}

/* ─── Ability Selection Overlay ─── */
#abilityScreen {
  z-index: 200;
}

.ability-content {
  text-align: center;
  max-width: 900px;
  width: 90%;
}

.ability-title {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 300;
  letter-spacing: 0.35em;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.ability-subtitle {
  font-size: clamp(0.7rem, 1.5vw, 0.85rem);
  font-weight: 300;
  letter-spacing: 0.2em;
  color: rgba(240, 230, 255, 0.35);
  margin-bottom: 2.5rem;
}

.ability-cards {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.ability-card {
  position: relative;
  width: 220px;
  padding: 1.8rem 1.4rem;
  background: rgba(10, 10, 30, 0.7);
  border: 1px solid rgba(240, 230, 255, 0.1);
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden;
  text-align: left;
  backdrop-filter: blur(10px);
}

.ability-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--card-color, rgba(244, 213, 141, 0.05));
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: inherit;
}

.ability-card:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: var(--card-border, rgba(244, 213, 141, 0.4));
  box-shadow: 0 16px 48px var(--card-shadow, rgba(244, 213, 141, 0.2));
}

.ability-card:hover::before {
  opacity: 1;
}

.ability-card-icon {
  font-size: 2.4rem;
  margin-bottom: 1rem;
  display: block;
  filter: drop-shadow(0 0 12px var(--card-glow, rgba(244, 213, 141, 0.5)));
  animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.ability-card-name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--card-accent, var(--glow-gold));
  margin-bottom: 0.4rem;
  display: block;
}

.ability-card-sub {
  font-size: 0.65rem;
  font-weight: 300;
  letter-spacing: 0.18em;
  color: rgba(240, 230, 255, 0.4);
  margin-bottom: 0.8rem;
  display: block;
  text-transform: uppercase;
}

.ability-card-desc {
  font-size: 0.8rem;
  font-weight: 300;
  line-height: 1.6;
  color: rgba(240, 230, 255, 0.65);
}

.ability-card-glow-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--card-bar, linear-gradient(90deg, var(--glow-gold), var(--glow-pink)));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.ability-card:hover .ability-card-glow-bar {
  transform: scaleX(1);
}

/* ─── Active Abilities HUD ─── */
.hud-abilities {
  display: flex;
  gap: 6px;
  margin-top: 0.4rem;
  flex-wrap: wrap;
  max-width: 200px;
}

.ability-pip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  background: rgba(240, 230, 255, 0.07);
  border: 1px solid rgba(240, 230, 255, 0.15);
  color: var(--text-secondary);
  animation: pipIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes pipIn {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.ability-pip.prism  { border-color: rgba(103, 232, 249, 0.4); color: var(--glow-cyan); }
.ability-pip.solar  { border-color: rgba(244, 213, 141, 0.4); color: var(--glow-gold); }
.ability-pip.thorn  { border-color: rgba(34, 197, 94, 0.4);  color: #4ade80; }
.ability-pip.bloom  { border-color: rgba(192, 132, 252, 0.4); color: var(--glow-purple); }

/* ─── Responsive ─── */
@media (max-width: 600px) {
  .hud {
    padding: 0.8rem 1rem;
  }

  .hud-value {
    font-size: 1.2rem;
  }

  .controls-hint {
    display: none;
  }
}