/* App-specific overrides; base styling comes from W3.CSS via CDN. */
.page-title { font-weight: 300; }

.feature-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1rem;
}

.feature-toolbar-item {
  min-width: 160px;
}

.feature-toolbar-item-date {
  width: 200px;
}

.feature-toolbar-item-method {
  width: 145px;
}

.feature-toolbar-item-add {
  min-width: 320px;
  flex: 1 1 380px;
}

.feature-field-inline,
.feature-add-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-inline-label {
  margin: 0;
  white-space: nowrap;
  min-width: max-content;
}

.feature-inline-control {
  flex: 1 1 auto;
  min-width: 0;
}

.feature-add-row {
  justify-content: flex-start;
}

.feature-add-label {
  flex-shrink: 0;
}

.feature-add-row .w3-select {
  flex: 1 1 auto;
  min-width: 0;
}

.feature-add-row .w3-button {
  flex-shrink: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.55rem;
  margin-bottom: 0.85rem;
}

.feature-card {
  border: 1px solid #d8dee4;
  border-radius: 10px;
  background: #fafcfe;
  padding: 0.65rem 0.8rem;
}

.feature-card-header,
.feature-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.feature-card-header {
  align-items: start;
}

.feature-card-title-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  min-width: 0;
}

.feature-card-title {
  line-height: 1.15;
  font-size: 0.98rem;
}

.feature-value {
  font-size: 0.95rem;
  font-weight: 600;
}

.feature-remove-button {
  flex-shrink: 0;
  padding: 0.15rem 0.5rem !important;
}

.feature-slider {
  width: 100%;
  margin-top: 0.25rem;
}

.feature-help {
  position: relative;
  flex-shrink: 0;
}

.feature-help summary {
  list-style: none;
}

.feature-help summary::-webkit-details-marker {
  display: none;
}

.feature-help-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  border: 1px solid #b7c4cf;
  border-radius: 999px;
  color: #607d8b;
  background: #fff;
  cursor: pointer;
  font-size: 0.8rem;
}

.feature-help[open] .feature-help-toggle {
  color: #1565c0;
  border-color: #1565c0;
}

.feature-help-panel {
  position: absolute;
  top: calc(100% + 0.3rem);
  right: 0;
  z-index: 2;
  width: min(18rem, calc(100vw - 2.5rem));
  max-width: calc(100vw - 2.5rem);
  padding: 0.55rem 0.65rem;
  border-left: 3px solid #2196f3;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 8px 20px rgba(33, 46, 58, 0.12);
  color: #4d6677;
  font-size: 0.8rem;
  line-height: 1.35;
}

.feature-empty {
  margin-bottom: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  background: #f5f7f9;
}

@media screen and (max-width: 768px) {
  .page-title { font-size: 1.3rem; }

  .feature-toolbar-item-date,
  .feature-toolbar-item-method,
  .feature-toolbar-item-add {
    width: 100%;
    min-width: 0;
  }

  .feature-field-inline,
  .feature-add-row {
    gap: 0.4rem;
  }

  .feature-field-inline {
    display: grid;
    grid-template-columns: 5.75rem minmax(0, 1fr);
    align-items: center;
  }

  .feature-add-row {
    display: grid;
    grid-template-columns: 5.75rem minmax(0, 1fr) auto;
    align-items: center;
  }

  .feature-inline-label,
  .feature-add-label {
    width: auto;
    min-width: 0;
  }

  .feature-inline-control,
  .feature-add-row .w3-select {
    width: 100%;
    min-width: 0;
  }

  .feature-help-panel {
    right: 0;
    width: min(15rem, calc(100vw - 2rem));
    max-width: calc(100vw - 2rem);
  }
}