.timer-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding-top: 80rpx;
  padding-bottom: calc(170rpx + env(safe-area-inset-bottom));
  min-height: 100vh;
  box-sizing: border-box;
}

/* ---- ring wrapper ---- */
.ring-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* breathing guide rings — three concentric layers */
.breathe-ring {
  position: absolute;
  border-radius: 50%;
  border: 3rpx solid rgba(var(--primary-rgb), 0.15);
  animation: breathePulse 3.5s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

.breathe-ring-1 { width: 480rpx; height: 480rpx; animation-delay: 0s; }
.breathe-ring-2 { width: 400rpx; height: 400rpx; animation-delay: 0.5s; border-color: rgba(var(--primary-rgb), 0.25); border-width: 4rpx; }
.breathe-ring-3 { width: 320rpx; height: 320rpx; animation-delay: 1s; border-color: rgba(var(--primary-rgb), 0.35); border-width: 5rpx; }

.breathe-ring.fast { animation: breathePulseFast 1.4s ease-in-out infinite; }
.breathe-ring.fast.breathe-ring-1 { animation-delay: 0s; border-color: rgba(var(--primary-rgb), 0.3); }
.breathe-ring.fast.breathe-ring-2 { animation-delay: 0.25s; border-color: rgba(var(--primary-rgb), 0.45); }
.breathe-ring.fast.breathe-ring-3 { animation-delay: 0.5s; border-color: rgba(var(--primary-rgb), 0.6); }

/* celebration burst */
.celebrate-burst {
  position: absolute;
  width: 520rpx;
  height: 520rpx;
  pointer-events: none;
  z-index: 2;
}

.spark {
  position: absolute;
  font-size: 36rpx;
  animation: sparkBurst 1s ease-out forwards;
}

.s1 { top: -10rpx; left: 50%; margin-left: -18rpx; animation-delay: 0s; }
.s2 { top: 30rpx; right: -10rpx; animation-delay: 0.1s; }
.s3 { bottom: -10rpx; right: 50rpx; animation-delay: 0.2s; }
.s4 { bottom: 20rpx; left: 30rpx; animation-delay: 0.15s; }
.s5 { top: 50%; right: -20rpx; animation-delay: 0.25s; }
.s6 { top: -20rpx; left: 40rpx; animation-delay: 0.05s; }

@keyframes sparkBurst {
  0%   { opacity: 0; transform: translate(0, 0) scale(0.3); }
  40%  { opacity: 1; transform: translate(0, -30rpx) scale(1.3); }
  100% { opacity: 0; transform: translate(0, -80rpx) scale(0.4); }
}

/* overtime badge */
.overtime-badge {
  position: absolute;
  bottom: 10rpx;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(76, 175, 80, 0.12);
  border: 2rpx solid rgba(76, 175, 80, 0.3);
  color: var(--success);
  padding: 8rpx 24rpx;
  border-radius: 24rpx;
  font-size: 28rpx;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6rpx;
  animation: popIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.overtime-icon {
  width: 28rpx;
  height: 28rpx;
}

/* ---- hint section ---- */
.hint-section {
  margin-top: 36rpx;
  text-align: center;
}

.hint-row {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10rpx;
}

.hint-icon {
  width: 32rpx;
  height: 32rpx;
}

.running-pulse {
  animation: float 1.5s ease-in-out infinite;
}

.completed-bounce {
  animation: bounceSoft 0.6s ease infinite;
}

.hint-text {
  font-size: 28rpx;
  color: var(--text-secondary);
  line-height: 1.3;
}

.hint-text.running { color: var(--primary); font-weight: 600; }
.hint-text.paused { color: var(--primary-light); }
.hint-text.completed { color: var(--success); font-weight: 600; }

.completed-hint { animation: popIn 0.5s ease; }

/* ---- controls ---- */
.controls {
  margin-top: 60rpx;
  width: 100%;
  display: flex;
  justify-content: center;
}

.ctrl-row {
  display: flex;
  justify-content: center;
  align-items: center;
}