.tool-main-card {
  --color-success: #22c55e;
  --color-warning: #eab308;
  --color-orange: #f97316;
  --color-danger: #ef4444;

  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 1.25rem;
  margin: 0 auto;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-base);
}

.alti-layout {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.25rem;
}

.alti-column {
  position: relative;
  width: 140px;
  height: 420px;
  flex-shrink: 0;
}

.alti-mountain-svg {
  width: 100%;
  height: 100%;
  display: block;
}

.alti-thumb {
  position: absolute;
  left: 50%;
  width: 32px;
  height: 32px;
  background: var(--accent);
  border: 3px solid var(--bg-surface);
  border-radius: 50%;
  cursor: grab;
  transform: translate(-50%, 50%);
  z-index: 10;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 30%, transparent), 0 2px 8px rgba(0,0,0,0.3);
  transition: box-shadow 0.2s ease;
  touch-action: none;
}

.alti-thumb:hover {
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 20%, transparent), 0 2px 12px rgba(0,0,0,0.4);
}

.alti-thumb::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  background: var(--bg-surface);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.alti-elevation-label {
  position: absolute;
  right: -8px;
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--text-base);
  opacity: 0.4;
  transform: translateY(-50%);
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}

.alti-current-label {
  position: absolute;
  left: 50%;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--accent);
  transform: translate(-50%, calc(50% + 16px));
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
  z-index: 11;
}

.alti-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
  border-radius: 0.75rem;
}

.alti-particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.3;
  animation: particle-float 3s ease-in-out infinite;
}

@keyframes particle-float {
  0%, 100% {
    transform: translateY(0) scale(1);
    opacity: 0.15;
  }
  50% {
    transform: translateY(-20px) scale(1.4);
    opacity: 0.4;
  }
}

.alti-main {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
}

.alti-top-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.alti-balance-panel {
  background: var(--bg-page);
  border: 1px solid var(--border-base);
  border-radius: 0.875rem;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
}

.alti-balance-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 40%, color-mix(in srgb, var(--accent) 4%, transparent) 0%, transparent 70%);
  pointer-events: none;
}

.alti-balance-title {
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-base);
  opacity: 0.5;
}

.alti-balance-svg-wrap {
  width: 140px;
  height: 140px;
  position: relative;
}

.alti-balance-svg-wrap svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

.balance-rim {
  fill: none;
  stroke: var(--text-base);
  stroke-width: 2;
  opacity: 0.15;
}

.balance-outer {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2.5;
  opacity: 0.6;
  transition: stroke 0.3s ease;
}

.balance-spoke {
  stroke: var(--text-base);
  stroke-width: 2;
  opacity: 0.3;
  transform-origin: 70px 70px;
  transition: transform 0.05s linear;
}

.balance-hub {
  fill: var(--accent);
  opacity: 0.8;
}

.balance-staff {
  fill: var(--text-base);
  opacity: 0.15;
}

.balance-hairspring {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1;
  opacity: 0.3;
}

.alti-rate-badge {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  padding: 0.3rem 0.75rem;
  background: color-mix(in srgb, var(--accent) 8%, var(--bg-page));
  border: 1px solid color-mix(in srgb, var(--accent) 15%, transparent);
  border-radius: 2rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.alti-rate-badge .unit {
  font-size: 0.6rem;
  font-weight: 600;
  opacity: 0.6;
}

.alti-rate-badge.neutral {
  color: var(--text-base);
  border-color: var(--border-base);
  background: var(--bg-page);
}

.alti-deviation-panel {
  background: var(--bg-page);
  border: 1px solid var(--border-base);
  border-radius: 0.875rem;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.alti-deviation-title {
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-base);
  opacity: 0.5;
}

.alti-deviation-gauge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.alti-deviation-value {
  font-size: 2.5rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  color: var(--accent);
  transition: color 0.3s ease;
}

.alti-deviation-value.negative { color: var(--text-dimmed); }

.alti-deviation-unit {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-dimmed);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.6;
}

.alti-deviation-bar {
  width: 100%;
  height: 6px;
  background: var(--border-base);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 0.25rem;
}

.alti-deviation-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.3s ease;
}

.alti-deviation-desc {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.5rem;
  border-radius: 0.25rem;
  background: color-mix(in srgb, var(--accent) 8%, var(--bg-page));
  color: var(--accent);
}

.alti-deviation-desc.negligible {
  background: color-mix(in srgb, var(--color-success) 8%, var(--bg-page));
  color: var(--color-success);
}
.alti-deviation-desc.minor {
  background: color-mix(in srgb, var(--color-warning) 8%, var(--bg-page));
  color: var(--color-warning);
}
.alti-deviation-desc.noticeable {
  background: color-mix(in srgb, var(--accent) 8%, var(--bg-page));
  color: var(--accent);
}
.alti-deviation-desc.significant {
  background: color-mix(in srgb, var(--color-orange) 8%, var(--bg-page));
  color: var(--color-orange);
}
.alti-deviation-desc.severe {
  background: color-mix(in srgb, var(--color-danger) 8%, var(--bg-page));
  color: var(--color-danger);
}

.alti-atm-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.alti-atm-card {
  background: var(--bg-page);
  border: 1px solid var(--border-base);
  border-radius: 0.625rem;
  padding: 0.6rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  transition: border-color 0.3s ease;
}

.alti-atm-card:hover {
  border-color: color-mix(in srgb, var(--accent) 20%, var(--border-base));
}

.alti-atm-label {
  font-size: 0.55rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-base);
  opacity: 0.45;
}

.alti-atm-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-base);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.alti-atm-unit {
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--text-dimmed);
  opacity: 0.6;
}

.alti-chart-section {
  background: var(--bg-page);
  border: 1px solid var(--border-base);
  border-radius: 0.875rem;
  padding: 0.75rem 1rem;
}

.alti-chart-title {
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-base);
  opacity: 0.5;
  margin-bottom: 0.4rem;
}

.alti-chart-svg {
  width: 100%;
  height: 80px;
  display: block;
}

.alti-chart-grid line {
  stroke: var(--border-base);
  stroke-width: 0.5;
  opacity: 0.4;
}

.alti-chart-line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  opacity: 0.7;
}

.alti-chart-area {
  fill: color-mix(in srgb, var(--accent) 10%, transparent);
}

.alti-chart-dot {
  fill: var(--accent);
  transition: cx 0.3s ease, cy 0.3s ease;
}

.alti-chart-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.5rem;
  color: var(--text-base);
  opacity: 0.35;
  margin-top: 0.15rem;
  font-variant-numeric: tabular-nums;
}

.alti-info-bar {
  background: color-mix(in srgb, var(--accent) 4%, var(--bg-page));
  border: 1px solid color-mix(in srgb, var(--accent) 8%, transparent);
  border-radius: 0.625rem;
  padding: 0.6rem 0.75rem;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.alti-info-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--accent);
  opacity: 0.6;
  margin-top: 1px;
}

.alti-info-text {
  font-size: 0.7rem;
  color: var(--text-base);
  opacity: 0.65;
  line-height: 1.5;
}

.alti-info-text strong {
  color: var(--accent);
  opacity: 1;
}

@media (max-width: 640px) {
  .alti-layout {
    grid-template-columns: 1fr;
  }
  .alti-column {
    width: 100%;
    height: 120px;
    order: -1;
  }
  .alti-top-row {
    grid-template-columns: 1fr;
  }
  .alti-atm-row {
    grid-template-columns: repeat(3, 1fr);
  }
}