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

html,
body {
  height: 100%;
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;
  background: #0e1621;
  color: #e7edf3;
}

.app {
  min-height: 100%;
  max-width: 420px;
  margin: 0 auto;
  padding: 1rem 1rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.bar {
  text-align: center;
}

.title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
}

.hint {
  margin: 0.35rem 0 0;
  font-size: 0.8rem;
  color: #8b9bab;
}

.stats {
  margin-top: 0.75rem;
}

.badge {
  display: inline-block;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: #17212b;
  font-size: 0.8rem;
  color: #7cb8ff;
}

.stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.circle-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.circle-wrap {
  position: relative;
  width: min(72vw, 280px);
  height: min(72vw, 280px);
  border-radius: 50%;
  overflow: hidden;
  background: #131d27;
  box-shadow:
    0 0 0 3px #2b5278,
    0 12px 40px rgba(0, 0, 0, 0.45);
}

.circle-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
  display: block;
}

.circle-video.hidden {
  display: none;
}

.timer {
  margin-top: 0;
  font-size: 1.75rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  color: #e7edf3;
  text-align: center;
  pointer-events: none;
  max-height: 0;
  margin-bottom: 0;
  opacity: 0;
  overflow: hidden;
  transition:
    max-height 0.2s ease,
    opacity 0.15s ease,
    margin-top 0.2s ease;
}

.timer.visible {
  max-height: 3rem;
  opacity: 1;
  margin-top: 0.75rem;
}

.record-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  box-shadow: inset 0 0 0 0 rgba(255, 80, 80, 0.35);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.record-ring.active {
  opacity: 1;
  animation: pulse-ring 1.2s ease-in-out infinite;
}

@keyframes pulse-ring {
  0%,
  100% {
    box-shadow: inset 0 0 0 0 rgba(255, 80, 80, 0.45);
  }
  50% {
    box-shadow: inset 0 0 0 8px rgba(255, 80, 80, 0.15);
  }
}

.status {
  min-height: 1.25rem;
  margin: 0;
  font-size: 0.85rem;
  color: #8b9bab;
  text-align: center;
}

.status.error {
  color: #ff8686;
}

.controls {
  display: flex;
  justify-content: center;
  padding: 0.5rem 0;
}

.btn-record {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: none;
  padding: 6px;
  background: rgba(255, 255, 255, 0.12);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.12s ease, background 0.12s ease;
}

.btn-record:active {
  transform: scale(0.96);
}

.btn-record:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-record-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: #e53935;
  box-shadow: 0 4px 16px rgba(229, 57, 53, 0.45);
  transition:
    border-radius 0.15s ease,
    transform 0.15s ease;
}

.btn-record.recording .btn-record-inner {
  border-radius: 12px;
  width: 36%;
  height: 36%;
}

.row {
  width: 100%;
  display: flex;
  justify-content: center;
}

.btn {
  border: none;
  border-radius: 12px;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  max-width: 320px;
  background: #5288c1;
  color: #fff;
  transition: opacity 0.15s ease, transform 0.12s ease;
}

.btn:active:not(:disabled) {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn.secondary {
  background: #394654;
  color: #dbe7f2;
}