.sketch-wrapper {
  --sketch-accent: #0ea5e9;
  --sketch-accent-dim: rgba(14,165,233,0.12);
  --sketch-danger: #ef4444;
  --sketch-success: #22c55e;
  --sketch-warning: #f59e0b;
  --sketch-surface: var(--bg-surface);
  --sketch-border: var(--border-color);
  --sketch-text: var(--text-main);
  --sketch-muted: var(--text-muted);
  --sketch-grid-color: rgba(14,165,233,0.12);

  width: 100%;
  padding: 1rem 0;
}

.sketch-card {
  background: var(--sketch-surface);
  width: calc(100% - 24px);
  max-width: 1200px;
  margin: 0 auto;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--sketch-border);
  color: var(--sketch-text);
  display: flex;
  flex-direction: column;
}

.sketch-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-page);
  border-bottom: 1px solid var(--sketch-border);
  overflow-x: auto;
}

.sketch-tool-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.sketch-tool-section-label {
  font-size: 0.5625rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sketch-muted);
  margin-right: 2px;
}

.sketch-tool {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 10px;
  border-radius: 10px;
  border: 1px solid var(--sketch-border);
  background: var(--sketch-surface);
  color: var(--sketch-text);
  font-size: 0.6875rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.34, 1.56, 0.64, 1);
  white-space: nowrap;
  flex-shrink: 0;
}

.sketch-tool:hover {
  border-color: var(--sketch-accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--sketch-accent-dim);
}

.sketch-tool:active {
  transform: scale(0.96);
}

.sketch-tool.active {
  border-color: var(--sketch-accent);
  background: var(--sketch-accent-dim);
  color: var(--sketch-accent);
}

.sketch-tool-danger {
  color: var(--sketch-danger);
}

.sketch-tool-danger:hover {
  border-color: var(--sketch-danger);
  box-shadow: 0 4px 12px rgba(239,68,68,0.12);
}

.sketch-tool-sep {
  width: 1px;
  height: 22px;
  background: var(--sketch-border);
  flex-shrink: 0;
}

.sketch-tool-swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  border: 1px solid rgba(0,0,0,0.1);
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.08);
}

.sketch-body {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-height: 400px;
}

@media (min-width: 1024px) {
  .sketch-body {
    flex-direction: row;
    min-height: 520px;
  }
}

.sketch-canvas-wrap {
  flex: 1;
  position: relative;
  background: var(--bg-page);
  overflow: hidden;
  cursor: crosshair;
  min-height: 320px;
}

.sketch-world {
  width: 800px;
  height: 500px;
  transform-origin: top left;
}

.sketch-svg {
  display: block;
  width: 800px;
  height: 500px;
}

.sketch-zoom-controls {
  position: absolute;
  bottom: 12px;
  right: 12px;
  display: flex;
  flex-direction: column;
  z-index: 10;
  border-radius: 10px;
  border: 1px solid var(--sketch-border);
  background: var(--sketch-surface);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  overflow: hidden;
}

.sketch-zoom-btn {
  width: 34px;
  height: 34px;
  border: none;
  background: transparent;
  color: var(--sketch-text);
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.sketch-zoom-btn:hover {
  background: var(--sketch-accent-dim);
  color: var(--sketch-accent);
}

.sketch-zoom-btn:active {
  background: rgba(14,165,233,0.2);
}

.sketch-zoom-btn + .sketch-zoom-btn {
  border-top: 1px solid var(--sketch-border);
}

.sketch-scale-bar {
  position: absolute;
  bottom: 12px;
  left: 12px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 3px;
  align-items: flex-start;
}

.sketch-scale-track {
  display: flex;
  height: 14px;
  border-radius: 3px;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.2);
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}

.sketch-scale-segment {
  height: 100%;
  flex: 0 0 auto;
}

.sketch-scale-segment.dark {
  background: #6b7280;
}

.sketch-scale-segment.light {
  background: #e5e7eb;
}

.sketch-scale-labels {
  display: flex;
  justify-content: space-between;
  width: 100%;
  padding: 0 1px;
}

.sketch-scale-label {
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--sketch-muted);
}

.sketch-wall-line {
  cursor: pointer;
  transition: stroke-width 0.15s;
}

.sketch-wall-line:hover {
  stroke-width: 9;
}

.sketch-obj-group {
  cursor: pointer;
  transition: opacity 0.15s;
}

.sketch-obj-group:hover {
  opacity: 0.8;
}

.sketch-panel {
  flex: 0 0 auto;
  width: 100%;
  padding: 20px;
  border-top: 1px solid var(--sketch-border);
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  background: var(--sketch-surface);
}

@media (min-width: 1024px) {
  .sketch-panel {
    width: 220px;
    border-top: none;
    border-left: 1px solid var(--sketch-border);
  }
}

.sketch-ring {
  position: relative;
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sketch-ring svg {
  position: absolute;
  inset: 0;
  transform: rotate(-90deg);
}

.sketch-ring-bg {
  fill: none;
  stroke: var(--bg-muted);
  stroke-width: 8;
}

.sketch-ring-fill {
  fill: none;
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), stroke 0.5s ease;
}

.sketch-ring-inner {
  position: relative;
  z-index: 2;
  text-align: center;
}

.sketch-ring-pct {
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1;
  transition: color 0.5s ease;
}

.sketch-ring-label {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sketch-muted);
  margin-top: 4px;
}

.sketch-range {
  padding: 7px 14px;
  border-radius: 10px;
  background: var(--bg-page);
  border: 1px solid var(--sketch-border);
  font-size: 0.8125rem;
  font-weight: 700;
}

.sketch-streams {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sketch-streams-title {
  font-size: 0.625rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sketch-muted);
}

.sketch-stream-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 9px;
  border-radius: 8px;
  background: var(--bg-page);
  border: 1px solid var(--sketch-border);
}

.sketch-stream-name {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--sketch-text);
}

.sketch-stream-badge {
  font-size: 0.625rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 5px;
  transition: all 0.3s ease;
}

.sketch-tip-area {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sketch-tip-card {
  padding: 9px 11px;
  border-radius: 10px;
  background: var(--bg-page);
  border: 1px solid var(--sketch-border);
  display: flex;
  align-items: flex-start;
  gap: 8px;
  animation: sketch-tip-in 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes sketch-tip-in {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.sketch-tip-icon {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: rgba(14,165,233,0.1);
  color: var(--sketch-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sketch-tip-text {
  font-size: 0.6875rem;
  line-height: 1.4;
  color: var(--sketch-text);
  font-weight: 500;
}

.sketch-particle {
  position: absolute;
  pointer-events: none;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--sketch-accent);
  text-shadow: 0 0 8px var(--sketch-accent-dim);
  animation: sketch-particle-float 0.8s ease-out forwards;
  z-index: 50;
}

@keyframes sketch-particle-float {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(-32px) scale(1.3);
  }
}

.sketch-peak-anim {
  animation: sketch-peak-glow 1s ease-in-out;
}

@keyframes sketch-peak-glow {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.08) rotate(2deg);
    filter: drop-shadow(0 0 24px var(--sketch-success));
  }
  100% {
    transform: scale(1);
  }
}

.sketch-danger-anim {
  animation: sketch-danger-shake 0.5s ease-in-out;
}

@keyframes sketch-danger-shake {
  0%, 100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-5px);
  }
  40% {
    transform: translateX(5px);
  }
  60% {
    transform: translateX(-3px);
  }
  80% {
    transform: translateX(3px);
  }
}

.sketch-avg-label {
  font-size: 0.625rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sketch-accent);
  text-align: center;
}

.sketch-device-panel {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--sketch-border);
  padding-top: 10px;
}

.sketch-device-section-title {
  font-size: 0.625rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sketch-muted);
}

.sketch-device-card {
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--bg-page);
  border: 1px solid var(--sketch-border);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sketch-device-header {
  display: flex;
  align-items: center;
  gap: 6px;
}

.sketch-device-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.sketch-device-name {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--sketch-text);
  flex: 1;
}

.sketch-device-pct {
  font-size: 0.75rem;
  font-weight: 800;
}

.sketch-device-bar-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 14px;
}

.sketch-device-range {
  font-size: 0.625rem;
  color: var(--sketch-muted);
  font-weight: 600;
}

.sketch-hint {
  padding: 8px 14px;
  background: var(--bg-page);
  border-top: 1px solid var(--sketch-border);
  font-size: 0.6875rem;
  color: var(--sketch-muted);
  text-align: center;
  font-weight: 500;
}

@media (max-width: 639px) {
  .sketch-toolbar {
    padding: 8px 10px;
  }

  .sketch-tool {
    padding: 6px 8px;
    font-size: 0.625rem;
  }

  .sketch-tool svg {
    width: 14px;
    height: 14px;
  }

  .sketch-panel {
    padding: 16px;
  }
}