:root {
  --bg-dark: #070b14;
  --panel-bg: rgba(13, 20, 36, 0.92);
  --panel-border: rgba(0, 229, 255, 0.28);
  --cyan: #00e5ff;
  --blue: #2979ff;
  --red: #ff2a5f;
  --gold: #ffd54f;
  --green: #00e676;
  --text-main: #f4f8ff;
  --text-sub: #94a8c9;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: none;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

#app-container {
  position: relative;
  width: 100vw;
  height: 100dvh;
  max-width: 560px;
  margin: 0 auto;
  overflow: hidden;
  background: radial-gradient(circle at 50% 25%, #111c35 0%, #070b14 75%);
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.85);
}

#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

/* ==================== 上部HUD ==================== */
#hud {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: calc(var(--safe-top) + 10px) calc(var(--safe-right) + 12px) 8px calc(var(--safe-left) + 12px);
  pointer-events: none;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hud-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.stage-pill {
  background: rgba(10, 17, 32, 0.82);
  border: 1px solid rgba(0, 229, 255, 0.35);
  border-radius: 12px;
  padding: 5px 10px;
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  backdrop-filter: blur(6px);
}

.stage-label {
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #ffffff;
}

.stage-label strong {
  color: var(--cyan);
  font-size: 0.98rem;
}

.best-label {
  font-size: 0.66rem;
  color: var(--text-sub);
  font-weight: 700;
}

.progress-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(10, 17, 32, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 5px 10px;
  backdrop-filter: blur(6px);
}

.progress-bar-bg {
  flex: 1;
  height: 10px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--green));
  border-radius: 999px;
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.7);
  transition: width 0.12s linear;
}

.boss-icon {
  font-size: 0.95rem;
  line-height: 1;
  filter: drop-shadow(0 0 4px rgba(255, 42, 95, 0.8));
}

.hud-right-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.coin-pill {
  background: rgba(10, 17, 32, 0.85);
  border: 1px solid rgba(255, 213, 79, 0.45);
  border-radius: 999px;
  padding: 6px 11px;
  display: flex;
  align-items: center;
  gap: 5px;
  font-weight: 800;
  font-size: 0.88rem;
  color: var(--gold);
  backdrop-filter: blur(6px);
}

.icon-btn {
  pointer-events: auto;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(10, 17, 32, 0.85);
  color: #fff;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.12s ease, border-color 0.15s ease;
}

.icon-btn:active {
  transform: scale(0.9);
}

.hud-sub-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.stat-chip {
  background: rgba(9, 15, 28, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 0.74rem;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 4px;
}

.stat-chip b {
  color: #ffffff;
  font-weight: 800;
}

.weapon-banner {
  align-self: center;
  background: linear-gradient(90deg, rgba(255, 196, 0, 0.22), rgba(0, 229, 255, 0.28));
  border: 1px solid var(--gold);
  border-radius: 999px;
  padding: 4px 14px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  min-width: 190px;
  box-shadow: 0 0 16px rgba(255, 213, 79, 0.35);
}

#weapon-name {
  font-size: 0.76rem;
  font-weight: 900;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.weapon-timer-track {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  overflow: hidden;
}

.weapon-timer-fill {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--gold), #ff6d00);
}

/* ==================== ボス警告バナー ==================== */
.boss-warning {
  position: absolute;
  top: 24%;
  left: 0;
  right: 0;
  z-index: 15;
  pointer-events: none;
  background: rgba(255, 23, 68, 0.22);
  border-top: 2px solid var(--red);
  border-bottom: 2px solid var(--red);
  padding: 10px 0;
  text-align: center;
  animation: pulseWarning 0.45s ease-in-out infinite alternate;
  backdrop-filter: blur(4px);
}

.warning-text {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: #fff;
  text-shadow: 0 0 14px var(--red), 0 0 28px var(--red);
}

@keyframes pulseWarning {
  from {
    opacity: 0.65;
    transform: scaleY(0.96);
  }
  to {
    opacity: 1;
    transform: scaleY(1.03);
  }
}

/* ==================== オーバーレイモーダル共通 ==================== */
.overlay-screen {
  position: absolute;
  inset: 0;
  z-index: 30;
  background: rgba(5, 9, 18, 0.78);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--safe-top) + 16px) 16px calc(var(--safe-bottom) + 16px);
  transition: opacity 0.22s ease;
}

.hidden {
  display: none !important;
}

.panel {
  width: 100%;
  max-width: 430px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  padding: 20px 18px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.75), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.title-badge,
.clear-badge,
.gameover-badge {
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(0, 229, 255, 0.15);
  border: 1px solid rgba(0, 229, 255, 0.45);
  color: var(--cyan);
}

.clear-badge {
  background: rgba(0, 230, 118, 0.16);
  border-color: rgba(0, 230, 118, 0.5);
  color: var(--green);
}

.gameover-badge {
  background: rgba(255, 42, 95, 0.18);
  border-color: rgba(255, 42, 95, 0.5);
  color: var(--red);
}

.game-title {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-align: center;
  line-height: 1.05;
  color: #ffffff;
  text-shadow: 0 0 22px rgba(0, 229, 255, 0.45);
}

.game-title span {
  display: block;
  font-size: 1.55rem;
  background: linear-gradient(90deg, var(--cyan), #69f0ae);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.game-subtitle {
  font-size: 0.82rem;
  color: var(--text-sub);
  margin-top: -6px;
}

.home-records {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.record-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  padding: 9px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.record-label {
  font-size: 0.7rem;
  color: var(--text-sub);
}

.record-value {
  font-size: 1.05rem;
  font-weight: 900;
  color: #fff;
}

.coin-text {
  color: var(--gold) !important;
}

.upgrade-section-header {
  width: 100%;
  font-size: 0.76rem;
  font-weight: 800;
  color: var(--cyan);
  text-align: left;
  padding-left: 4px;
  margin-bottom: -6px;
}

.upgrade-grid {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.upgrade-card {
  width: 100%;
  background: rgba(20, 31, 56, 0.85);
  border: 1px solid rgba(0, 229, 255, 0.25);
  border-radius: 14px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--text-main);
  cursor: pointer;
  transition: transform 0.1s ease, border-color 0.15s ease, background 0.15s ease;
  text-align: left;
}

.upgrade-card:hover:not(:disabled) {
  border-color: var(--cyan);
  background: rgba(26, 42, 76, 0.95);
}

.upgrade-card:active:not(:disabled) {
  transform: scale(0.98);
}

.upgrade-card:disabled {
  opacity: 0.48;
  border-color: rgba(255, 255, 255, 0.08);
  cursor: not-allowed;
}

.upg-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(0, 229, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.upg-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.upg-title {
  font-size: 0.86rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 6px;
}

.upg-lv {
  font-size: 0.72rem;
  padding: 1px 7px;
  border-radius: 999px;
  background: rgba(0, 229, 255, 0.18);
  color: var(--cyan);
}

.upg-val {
  font-size: 0.74rem;
  color: var(--text-sub);
}

.upg-cost {
  background: rgba(255, 213, 79, 0.15);
  border: 1px solid rgba(255, 213, 79, 0.45);
  color: var(--gold);
  font-weight: 900;
  font-size: 0.84rem;
  padding: 6px 11px;
  border-radius: 10px;
  white-space: nowrap;
}

.primary-cta-btn {
  width: 100%;
  border: none;
  border-radius: 16px;
  padding: 14px 18px;
  background: linear-gradient(135deg, #00e5ff 0%, #2979ff 100%);
  color: #041020;
  font-weight: 900;
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: 0 8px 25px rgba(0, 229, 255, 0.45);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.primary-cta-btn:active {
  transform: scale(0.97);
}

.cta-main {
  font-size: 1.12rem;
  font-weight: 900;
  color: #031022;
}

.cta-sub {
  font-size: 0.7rem;
  font-weight: 700;
  color: rgba(3, 16, 34, 0.78);
}

.secondary-cta-btn {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 16px;
  padding: 13px 16px;
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.96rem;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.15s ease;
}

.secondary-cta-btn:active {
  transform: scale(0.97);
}

/* ==================== ローグライク3択スキル画面 ==================== */
.modal-title {
  font-size: 1.35rem;
  font-weight: 900;
  text-align: center;
}

.clear-bonus-text {
  font-size: 0.86rem;
  color: var(--text-sub);
  margin-top: -6px;
}

.clear-bonus-text b {
  color: var(--gold);
}

.skill-cards-list {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.skill-card {
  width: 100%;
  background: linear-gradient(135deg, rgba(22, 36, 68, 0.95), rgba(14, 23, 44, 0.95));
  border: 1px solid rgba(0, 229, 255, 0.38);
  border-radius: 16px;
  padding: 13px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  cursor: pointer;
  text-align: left;
  transition: transform 0.12s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.skill-card:hover {
  border-color: var(--gold);
  box-shadow: 0 0 18px rgba(255, 213, 79, 0.3);
  transform: translateY(-2px);
}

.skill-card:active {
  transform: scale(0.98);
}

.skill-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(0, 229, 255, 0.15);
  border: 1px solid rgba(0, 229, 255, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.55rem;
  flex-shrink: 0;
}

.skill-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.skill-name-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.skill-name {
  font-size: 0.96rem;
  font-weight: 900;
  color: var(--cyan);
}

.skill-tag {
  font-size: 0.66rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255, 213, 79, 0.18);
  color: var(--gold);
}

.skill-desc {
  font-size: 0.78rem;
  color: var(--text-sub);
  line-height: 1.35;
}

/* ==================== ゲームオーバー画面 ==================== */
.gameover-title {
  font-size: 1.9rem;
  font-weight: 900;
  color: var(--red);
  text-shadow: 0 0 20px rgba(255, 42, 95, 0.5);
}

.gameover-desc {
  font-size: 0.82rem;
  color: var(--text-sub);
  margin-top: -6px;
}

.result-stats {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.86rem;
  color: var(--text-sub);
}

.result-row strong {
  color: #fff;
  font-size: 0.96rem;
}

.gameover-actions {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (max-height: 680px) {
  .panel {
    padding: 14px 14px;
    gap: 10px;
  }
  .game-title {
    font-size: 1.65rem;
  }
  .game-title span {
    font-size: 1.3rem;
  }
  .upgrade-card {
    padding: 7px 10px;
  }
}