.lock-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.2rem;
  background: radial-gradient(circle at 50% 30%, rgba(0,255,231,0.08), rgba(0,0,0,0.94) 60%);
  backdrop-filter: blur(2px);
  animation: lockFadeIn 260ms ease-out;
}

.lock-card {
  width: min(92vw, 560px);
  text-align: center;
  color: #fff;
  background: rgba(24, 28, 36, 0.96);
  border: 1px solid color-mix(in srgb, var(--neon-color,#00ffe7) 45%, transparent);
  border-radius: 18px;
  padding: 1.4rem 1.1rem 1.1rem;
  box-shadow: 0 0 28px color-mix(in srgb, var(--neon-color,#00ffe7) 45%, transparent), 0 0 0 1px rgba(255,255,255,0.07) inset;
  animation: lockCardPop 320ms cubic-bezier(0.2, 0.9, 0.2, 1);
}

.lock-mining-scene {
  position: relative;
  width: min(86vw, 230px);
  height: 86px;
  margin: 0.25rem auto 0.85rem;
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(0,0,0,0.18));
  box-shadow: 0 0 0 1px rgba(255,255,255,0.08) inset;
  overflow: hidden;
}

.lock-pickaxe {
  position: absolute;
  left: 58px;
  top: 8px;
  font-size: 2rem;
  transform-origin: 80% 82%;
  animation: lockPickaxeHit 0.75s ease-in-out infinite;
  filter: drop-shadow(0 0 6px rgba(255,255,255,0.4));
}

.lock-rock {
  position: absolute;
  right: 42px;
  bottom: 13px;
  font-size: 2rem;
  animation: lockRockShake 0.75s ease-in-out infinite;
  filter: drop-shadow(0 0 10px rgba(0,0,0,0.45));
}

.lock-spark {
  position: absolute;
  color: #ffd27a;
  opacity: 0;
  text-shadow: 0 0 8px rgba(255,210,122,0.8);
}

.lock-spark-1 {
  right: 88px;
  top: 28px;
  animation: lockSpark 0.75s ease-out infinite;
}

.lock-spark-2 {
  right: 72px;
  top: 18px;
  animation: lockSpark 0.75s ease-out 0.09s infinite;
}

.lock-title {
  font-size: clamp(1.1rem, 2.4vw, 1.45rem);
  font-weight: 700;
  text-shadow: 0 0 12px color-mix(in srgb, var(--neon-color,#00ffe7) 40%, transparent);
  margin-bottom: 0.55rem;
}

.lock-subtitle {
  font-size: clamp(0.9rem, 1.9vw, 1rem);
  color: #d7dde8;
  line-height: 1.45;
  margin-bottom: 1rem;
}

.lock-unlock-btn {
  border: none;
  border-radius: 12px;
  background: linear-gradient(90deg, #ff4d4d 0%, #ff6b6b 100%);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
  padding: 0.85rem 1.4rem;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(255,77,77,0.35), 0 0 0 1px rgba(255,255,255,0.15) inset;
  transition: transform 0.16s ease, filter 0.16s ease, box-shadow 0.16s ease;
  animation: lockPulse 2.3s ease-in-out infinite;
}

.lock-unlock-btn:hover {
  transform: translateY(-1px) scale(1.01);
  filter: brightness(1.04);
  box-shadow: 0 12px 28px rgba(255,77,77,0.42), 0 0 0 1px rgba(255,255,255,0.2) inset;
}

.lock-unlock-btn:active {
  transform: translateY(0) scale(0.99);
}

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

@keyframes lockCardPop {
  from { opacity: 0; transform: translateY(8px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes lockPulse {
  0%, 100% { box-shadow: 0 8px 24px rgba(255,77,77,0.35), 0 0 0 1px rgba(255,255,255,0.15) inset; }
  50% { box-shadow: 0 12px 30px rgba(255,77,77,0.5), 0 0 0 1px rgba(255,255,255,0.24) inset; }
}

@keyframes lockPickaxeHit {
  0% { transform: rotate(-26deg) translate(0, 0); }
  38% { transform: rotate(16deg) translate(10px, 10px); }
  46% { transform: rotate(24deg) translate(13px, 13px); }
  100% { transform: rotate(-26deg) translate(0, 0); }
}

@keyframes lockRockShake {
  0%, 34%, 100% { transform: translateX(0); }
  40% { transform: translateX(2px) rotate(-3deg); }
  47% { transform: translateX(-2px) rotate(2deg); }
  55% { transform: translateX(1px); }
}

@keyframes lockSpark {
  0%, 35%, 100% { opacity: 0; transform: translate(0, 0) scale(0.7); }
  45% { opacity: 1; transform: translate(2px, -4px) scale(1); }
  62% { opacity: 0; transform: translate(8px, -9px) scale(1.05); }
}

body.lock-active #mainContainer,
body.lock-active #app-container {
  filter: blur(0.6px) brightness(0.58);
  transform: scale(0.995);
  transition: filter 0.25s ease, transform 0.25s ease;
}

@media (max-width: 600px) {
  .lock-card {
    padding: 1.1rem 0.8rem 0.9rem;
  }
}