/* ==========================================================================
   Flip Clock Timer Styles - PROPER LAYOUT WITH FLICKER ANIMATION
   ========================================================================== */

.clock-container {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.15);
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  position: relative;
  width: 100%;
  box-sizing: border-box;
}

.clock-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.clock-header h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.3px;
}

.clock-controls {
  display: flex;
  gap: 10px;
}

.clock-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 200ms var(--ease);
  white-space: nowrap;
  min-width: 70px;
  justify-content: center;
}

.clock-btn:hover:not(:disabled) {
  border-color: var(--accent);
  background: rgba(163, 177, 138, 0.05);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.clock-btn:active:not(:disabled) {
  transform: translateY(0);
}

.clock-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
}

.clock-btn svg {
  width: 16px;
  height: 16px;
  opacity: 0.9;
}

/* Play button specific styles */
.clock-btn.play-btn {
  background: var(--accent);
  color: #1b1b1b;
  border-color: var(--accent);
}

.clock-btn.play-btn:hover:not(:disabled) {
  background: var(--accent);
  filter: brightness(1.1);
  transform: translateY(-2px);
}

/* Flip Clock Display */
.flip-clock-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  padding: 10px 0;
}

.flip-clock {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: "Courier New", monospace;
  font-weight: 800;
  color: var(--ink);
}

.flip-unit {
  position: relative;
}

.flip-card {
  position: relative;
  width: 60px;
  height: 80px;
  perspective: 400px;
}

.flip-card .top,
.flip-card .bottom,
.flip-card .flip-top,
.flip-card .flip-bottom {
  position: absolute;
  width: 100%;
  text-align: center;
  background: var(--bg);
  border-radius: 8px;
  overflow: hidden;
  backface-visibility: hidden;
}

.flip-card .top,
.flip-card .bottom {
  background: var(--paper);
  box-shadow: 
    0 2px 8px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  z-index: 1;
}

.flip-card .top {
  top: 0;
  height: 50%;
  line-height: 80px;
  font-size: 42px;
  border-bottom: 1px solid var(--line);
}

.flip-card .bottom {
  bottom: 0;
  height: 50%;
  line-height: 0;
  font-size: 42px;
  border-top: 1px solid var(--line);
}

.flip-card .flip-top,
.flip-card .flip-bottom {
  background: var(--paper);
  box-shadow: 
    0 2px 8px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.flip-card .flip-top {
  top: 0;
  height: 50%;
  line-height: 80px;
  font-size: 42px;
  border-bottom: 1px solid var(--line);
  transform-origin: bottom;
  transform: rotateX(0deg);
}

.flip-card .flip-bottom {
  bottom: 0;
  height: 50%;
  line-height: 0;
  font-size: 42px;
  border-top: 1px solid var(--line);
  transform-origin: top;
  transform: rotateX(180deg);
}

/* FLICKER ANIMATION - The magic happens here */
.flip-card.flipping .flip-top {
  animation: flipTop 0.6s cubic-bezier(0.4, 0.2, 0.2, 1) both;
}

.flip-card.flipping .flip-bottom {
  animation: flipBottom 0.6s cubic-bezier(0.4, 0.2, 0.2, 1) both;
}

@keyframes flipTop {
  0% {
    transform: rotateX(0deg);
    z-index: 2;
  }
  50% {
    transform: rotateX(-90deg);
    z-index: 2;
  }
  51% {
    transform: rotateX(-90deg);
    z-index: 1;
  }
  100% {
    transform: rotateX(-180deg);
    z-index: 1;
  }
}

@keyframes flipBottom {
  0% {
    transform: rotateX(180deg);
    z-index: 1;
  }
  50% {
    transform: rotateX(90deg);
    z-index: 1;
  }
  51% {
    transform: rotateX(90deg);
    z-index: 2;
  }
  100% {
    transform: rotateX(0deg);
    z-index: 2;
  }
}

/* Colon between minutes and seconds */
.flip-colon {
  font-size: 32px;
  color: var(--accent);
  font-weight: 700;
  margin: 0 4px;
  opacity: 0.9;
  line-height: 80px;
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Mobile responsive styles */
@media (max-width: 979px) {
  .clock-container {
    width: 100%;
  }
  
  .flip-card {
    width: 50px;
    height: 70px;
  }
  
  .flip-card .top,
  .flip-card .flip-top {
    line-height: 70px;
    font-size: 36px;
  }
  
  .flip-card .bottom,
  .flip-card .flip-bottom {
    font-size: 36px;
  }
  
  .flip-colon {
    font-size: 28px;
    line-height: 70px;
  }
  
  .flip-clock {
    gap: 6px;
  }
}

@media (max-width: 480px) {
  .flip-card {
    width: 40px;
    height: 60px;
  }
  
  .flip-card .top,
  .flip-card .flip-top {
    line-height: 60px;
    font-size: 28px;
  }
  
  .flip-card .bottom,
  .flip-card .flip-bottom {
    font-size: 28px;
  }
  
  .flip-colon {
    font-size: 24px;
    line-height: 60px;
  }
  
  .flip-clock {
    gap: 4px;
  }
}