:root {
  --sc-primary: #165dff;
  --sc-primary-hover: #0f4fda;
  --sc-primary-soft: rgba(22, 93, 255, 0.14);
  --sc-surface: #ffffff;
  --sc-surface-soft: #f6f9ff;
  --sc-surface-muted: #edf2fb;
  --sc-text: #1d2129;
  --sc-text-soft: #4e5969;
  --sc-gray: #86909c;
  --sc-border: #e5eaf4;
  --sc-divider: #edf1f7;
  --sc-success: #00b42a;
  --sc-success-soft: rgba(0, 180, 42, 0.16);
  --sc-error: #f53f3f;
  --sc-error-soft: rgba(245, 63, 63, 0.14);
}

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

@keyframes scSlideUp {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes scShake {
  0%,
  100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-6px);
  }
  40% {
    transform: translateX(6px);
  }
  60% {
    transform: translateX(-4px);
  }
  80% {
    transform: translateX(4px);
  }
}

@keyframes scSpin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes scSuccessPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 180, 42, 0.28);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(0, 180, 42, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(0, 180, 42, 0);
  }
}

.sc-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(15, 23, 42, 0.48);
  backdrop-filter: blur(4px);
  animation: scFadeIn 0.22s ease;
}

.sc-overlay.sc-show {
  display: flex;
}

.sc-modal {
  width: min(360px, calc(100vw - 24px));
  background: var(--sc-surface);
  border-radius: 18px;
  box-shadow: 0 18px 60px rgba(15, 23, 42, 0.22);
  overflow: hidden;
  animation: scSlideUp 0.24s ease;
}

.sc-modal.sc-fail {
  animation: scShake 0.38s ease;
}

.sc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  border-bottom: 1px solid var(--sc-divider);
}

.sc-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--sc-text);
}

.sc-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sc-refresh-btn,
.sc-close-btn {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--sc-gray);
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.sc-refresh-btn:hover {
  background: var(--sc-surface-muted);
  color: var(--sc-text);
}

.sc-close-btn:hover {
  background: rgba(245, 63, 63, 0.08);
  color: var(--sc-error);
}

.sc-refresh-btn:active,
.sc-close-btn:active {
  transform: scale(0.96);
}

.sc-refresh-btn.sc-spinning .sc-action-svg {
  animation: scSpin 0.42s linear;
}

.sc-action-svg {
  width: 18px;
  height: 18px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.1;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.sc-body {
  padding: 18px;
}

.sc-canvas-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 2 / 1;
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(180deg, #edf2fb 0%, #e7eef9 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.45);
  user-select: none;
}

.sc-bg,
.sc-piece {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.sc-piece {
  z-index: 2;
  pointer-events: none;
}

.sc-slider-wrap {
  margin-top: 16px;
}

.sc-slider-track {
  position: relative;
  height: 46px;
  border: 1px solid var(--sc-border);
  border-radius: 23px;
  overflow: hidden;
  background: linear-gradient(180deg, #f9fbff 0%, #eff4fc 100%);
  user-select: none;
}

.sc-slider-fill {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 0;
  border-radius: 22px 0 0 22px;
  background: var(--sc-primary-soft);
  transition: background 0.18s ease;
  z-index: 1;
}

.sc-slider-tip {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 66px 0 60px;
  font-size: 14px;
  line-height: 1;
  color: var(--sc-text-soft);
  text-align: center;
  pointer-events: none;
  transition: opacity 0.18s ease, color 0.18s ease;
}

.sc-slider-btn {
  position: absolute;
  top: 0;
  left: 0;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  border-radius: 22px;
  background: linear-gradient(180deg, #ffffff 0%, #f7f9fd 100%);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.14), inset 0 1px 0 rgba(255, 255, 255, 0.8);
  color: var(--sc-primary);
  cursor: grab;
  z-index: 2;
  transition: background 0.18s ease, box-shadow 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.sc-slider-btn:hover {
  color: var(--sc-primary-hover);
  box-shadow: 0 12px 26px rgba(22, 93, 255, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.sc-slider-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.16), 0 10px 24px rgba(15, 23, 42, 0.14), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.sc-slider-btn.sc-active {
  cursor: grabbing;
  transform: none;
}

.sc-slider-btn-icon {
  width: 100%;
  height: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.sc-slider-svg {
  width: 18px;
  height: 18px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.sc-slider-svg-success {
  width: 16px;
  height: 16px;
  fill: currentColor;
  stroke: none;
}

.sc-slider-svg-fail {
  width: 16px;
  height: 16px;
}

.sc-slider-track.sc-dragging .sc-slider-btn {
  background: linear-gradient(180deg, #2b6dff 0%, #165dff 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(22, 93, 255, 0.22);
  transition: none;
}

.sc-slider-track.sc-dragging .sc-slider-fill {
  background: rgba(22, 93, 255, 0.18);
}

.sc-slider-track.sc-dragging .sc-slider-tip {
  opacity: 0.15;
}

.sc-slider-track.sc-success {
  animation: scSuccessPulse 0.6s ease;
}

.sc-slider-btn.sc-success {
  background: linear-gradient(180deg, #22c14c 0%, var(--sc-success) 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 180, 42, 0.22);
}

.sc-slider-track.sc-success .sc-slider-fill {
  background: var(--sc-success-soft);
}

.sc-slider-track.sc-success .sc-slider-tip {
  color: var(--sc-success);
}

.sc-slider-btn.sc-fail {
  background: linear-gradient(180deg, #ff7a7a 0%, var(--sc-error) 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(245, 63, 63, 0.22);
}

.sc-slider-track.sc-fail .sc-slider-fill {
  background: var(--sc-error-soft);
}

.sc-slider-track.sc-fail .sc-slider-tip {
  color: var(--sc-error);
}

@media (max-width: 420px) {
  .sc-overlay {
    padding: 16px;
  }

  .sc-modal {
    width: calc(100vw - 20px);
    border-radius: 16px;
  }

  .sc-body {
    padding: 16px;
  }

  .sc-header {
    padding: 14px 16px;
  }

  .sc-slider-track {
    height: 42px;
    border-radius: 21px;
  }

  .sc-slider-fill {
    border-radius: 20px 0 0 20px;
  }

  .sc-slider-btn {
    width: 40px;
    height: 40px;
    border-radius: 20px;
  }

  .sc-slider-tip {
    padding: 0 54px 0 50px;
    font-size: 13px;
  }

  .sc-slider-svg {
    width: 16px;
    height: 16px;
  }

  .sc-slider-svg-success,
  .sc-slider-svg-fail {
    width: 14px;
    height: 14px;
  }
}