.tool-main-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 1.25rem;
  max-width: 480px;
  margin: 0 auto;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-shadow: var(--shadow-base);
}

.moon-panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.panel-section {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-base);
  opacity: 0.7;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Date controls */
.date-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.date-row input[type="date"] {
  flex: 1;
  padding: 0.65rem 0.75rem;
  background: var(--bg-page);
  border: 1px solid var(--border-base);
  border-radius: 0.75rem;
  color: var(--text-base);
  font-size: 0.875rem;
  transition: border-color 0.2s;
  color-scheme: dark;
  box-sizing: border-box;
}

.date-row input[type="date"]:focus {
  outline: none;
  border-color: var(--accent);
}

.btn-today {
  padding: 0.6rem 1rem;
  background: var(--bg-page);
  border: 1px solid var(--border-base);
  border-radius: 0.75rem;
  color: var(--text-base);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn-today:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--bg-page));
}

/* Moon canvas */
.moon-canvas-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.moon-canvas-wrapper canvas {
  max-width: 100%;
  border-radius: 1rem;
}

/* Phase info cards */
.phase-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.phase-info-card {
  padding: 0.65rem 0.75rem;
  background: var(--bg-page);
  border: 1px solid var(--border-base);
  border-radius: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.phase-info-card.wide {
  grid-column: span 2;
}

.phase-info-label {
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--text-base);
  opacity: 0.5;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.phase-info-value {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-base);
}

.phase-info-value.accent {
  color: var(--accent);
}

/* Upcoming events */
.upcoming-section {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.upcoming-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.75rem;
  background: var(--bg-page);
  border: 1px solid var(--border-base);
  border-radius: 0.6rem;
  font-size: 0.8125rem;
}

.upcoming-label {
  font-weight: 600;
  color: var(--text-base);
}

.upcoming-date {
  color: var(--text-base);
  opacity: 0.6;
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
}

/* Phase phase-badge */
.phase-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.6rem;
  background: color-mix(in srgb, var(--accent) 12%, var(--bg-page));
  border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--border-base));
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
}

.tip-row {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--bg-page);
  border-radius: 0.75rem;
  border: 1px solid var(--border-base);
}

.tip-icon {
  flex-shrink: 0;
  margin-top: 0.1rem;
  color: var(--accent);
}

.tip-text {
  font-size: 0.8rem;
  color: var(--text-base);
  opacity: 0.85;
  line-height: 1.5;
}

@media (max-width: 520px) {
  .tool-main-card {
    padding: 1rem;
  }
  .phase-info {
    grid-template-columns: 1fr;
  }
  .phase-info-card.wide {
    grid-column: span 1;
  }
  .date-row {
    flex-direction: column;
  }
  .date-row input[type="date"] {
    width: 100%;
  }
  .btn-today {
    width: 100%;
  }
}