/* Timer Display */
.timer-display {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: var(--spacing-xl) 0;
}

.timer-circle {
  position: relative;
  width: 280px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.progress-ring {
  position: absolute;
  top: 0;
  left: 0;
  transform: rotate(-90deg);
}

.progress-ring-circle {
  transition: stroke-dashoffset var(--transition-slow);
  stroke-dasharray: 817; /* 2 * π * 130 */
  stroke-dashoffset: 0;
  stroke-linecap: round;
}

.timer-time {
  font-family: var(--font-mono);
  font-size: 4rem;
  font-weight: 700;
  color: var(--color-primary);
  position: relative;
  z-index: 1;
  user-select: none;
}

/* Pulsing animation when time is running out */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
}

.timer-time.warning {
  color: var(--color-warning);
  animation: pulse 1s ease-in-out infinite;
}

.timer-time.danger {
  color: var(--color-danger);
  animation: pulse 0.5s ease-in-out infinite;
}

/* Reward pulse animation */
.timer-time.reward-pulse {
  animation: rewardPulse 1s ease-out;
}

@keyframes rewardPulse {
  0% {
    transform: scale(1);
    color: var(--color-primary);
  }
  25% {
    transform: scale(1.1);
    color: var(--color-accent);
  }
  50% {
    transform: scale(1.05);
    color: var(--color-success);
  }
  75% {
    transform: scale(1.08);
    color: var(--color-accent);
  }
  100% {
    transform: scale(1);
    color: var(--color-primary);
  }
}

/* Session Progress Dots */
.session-progress {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  margin-top: var(--spacing-lg);
}

.progress-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-text-light);
  opacity: 0.2;
  transition: all var(--transition-base);
  box-shadow: inset 0 0 0 2px var(--color-surface);
}

.progress-dot.completed {
  background: var(--color-accent);
  opacity: 1;
  transform: scale(1.3);
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--color-accent) 20%, transparent),
    0 2px 8px color-mix(in srgb, var(--color-accent) 30%, transparent);
}

.progress-dot.active {
  background: var(--color-secondary);
  opacity: 1;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% {
    transform: scale(1.1);
    opacity: 1;
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-secondary) 20%, transparent);
  }
  50% {
    transform: scale(1.4);
    opacity: 0.9;
    box-shadow: 0 0 0 6px color-mix(in srgb, var(--color-secondary) 10%, transparent);
  }
}

/* Responsive */
@media (max-width: 640px) {
  .timer-circle {
    width: 240px;
    height: 240px;
  }

  .progress-ring {
    width: 240px;
    height: 240px;
  }

  .progress-ring-circle {
    r: 110;
    cx: 120;
    cy: 120;
    stroke-dasharray: 691; /* 2 * π * 110 */
  }

  .timer-time {
    font-size: 3rem;
  }

  .mode-display {
    font-size: 1rem;
  }
}