@layer components {
  /* 1a — Open/close animation via grid-template-rows */
  .quick-fill__panel {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows var(--duration-normal) var(--ease-out);
  }

  .is-open .quick-fill__panel {
    grid-template-rows: 1fr;
  }

  .quick-fill__panel-inner {
    overflow: hidden;
  }

  /* 1b — Panel visual identity */
  .quick-fill__panel-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-muted);
    border-left: 3px solid var(--color-primary-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
  }

  /* 1c — Toggle button active state */
  .quick-fill__toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
  }

  .quick-fill__toggle .icon {
    transition: transform var(--duration-normal) var(--ease-out);
  }

  .is-open .quick-fill__toggle {
    background: var(--color-primary-subtle);
    border-color: var(--color-primary-muted);
  }

  .is-open .quick-fill__toggle .icon {
    transform: rotate(180deg);
  }

  .quick-fill__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
  }

  .quick-fill__form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
  }

  .quick-fill__time-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }

  /* 1d — Clock icon on time inputs */
  .quick-fill__time-inputs .form__input {
    padding-left: calc(var(--space-md) + 1.25rem);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpolyline points='12 6 12 12 16 14'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: left var(--space-sm) center;
    background-size: 1rem;
  }

  .quick-fill__duration {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
  }

  .quick-fill__presets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-sm);
  }

  .quick-fill__preset-btn {
    padding: var(--space-xs) var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-elevated);
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition:
      background-color var(--duration-fast),
      border-color var(--duration-fast),
      color var(--duration-fast);
  }

  .quick-fill__preset-btn:hover {
    border-color: var(--color-primary-muted);
    background: var(--color-bg-muted);
  }

  .quick-fill__preset-btn.is-active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
  }

  /* 1e — Preset/custom separator */
  .quick-fill__custom {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    border-left: 1px solid var(--color-border);
    padding-left: var(--space-md);
    margin-left: var(--space-xs);
  }

  .quick-fill__custom-input {
    width: 5rem;
  }

  .quick-fill__custom-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
  }

  /* Inline slot count next to Generate button */
  .quick-fill__actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-md);
  }

  .quick-fill__count {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
  }

  .quick-fill__count:empty {
    display: none;
  }

  .quick-fill__count--warning {
    color: var(--color-error);
  }

  /* 1g — Mobile: 2-per-row presets, full-width custom */
  @media (max-width: 600px) {
    .quick-fill__time-inputs {
      grid-template-columns: 1fr;
    }

    .quick-fill__presets {
      flex-wrap: wrap;
    }

    .quick-fill__preset-btn {
      flex: 1 1 calc(50% - var(--space-sm));
      text-align: center;
    }

    .quick-fill__custom {
      flex-basis: 100%;
      border-left: none;
      border-top: 1px solid var(--color-border);
      padding-left: 0;
      padding-top: var(--space-sm);
      margin-left: 0;
      margin-top: var(--space-xs);
    }
  }
}