/*
 * sd-accordion — FAQs, product details, mobile filters (Session 2.3)
 * Native <details>/<summary>: keyboard and screen-reader support without JS (Design_System_Plan.md 10.3).
 * The heading level is given by a heading element inside <summary> where the page outline needs it.
 * States: default, hover, focus-visible, open, disabled (rendered as plain text, not a control).
 */

.sd-accordion {
  border-top: var(--sd-border-width) solid var(--sd-color-brand-blue);
}

.sd-accordion__item {
  border-bottom: var(--sd-border-width) solid var(--sd-color-blue-100);
}

.sd-accordion__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sd-space-3);
  min-height: 3.5rem;
  padding: var(--sd-space-3) var(--sd-space-2) var(--sd-space-3) 0;
  color: var(--sd-color-text-heading);
  font-size: var(--sd-font-size-body);
  font-weight: var(--sd-font-weight-medium);
  line-height: var(--sd-line-height-h4);
  list-style: none;
  cursor: pointer;
  transition: background-color var(--sd-transition-feedback);
}

.sd-accordion__summary::-webkit-details-marker { display: none; }
.sd-accordion__summary > h3,
.sd-accordion__summary > h4 { font: inherit; color: inherit; letter-spacing: 0; }

.sd-accordion__summary:hover,
.sd-accordion__summary[data-state="hover"] { background: var(--sd-color-blue-050); }

.sd-accordion__summary:focus-visible { outline-offset: -2px; }

/* Plus/minus marker in a 44px circle (same shape as the services arrow button) */
.sd-accordion__marker {
  position: relative;
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  flex: none;
  border: var(--sd-border-width) solid var(--sd-color-blue-100);
  border-radius: 50%;
  color: var(--sd-color-brand-blue);
  transition: transform var(--sd-transition-ui), background-color var(--sd-transition-feedback);
}

.sd-accordion__marker::before,
.sd-accordion__marker::after {
  content: "";
  position: absolute;
  width: 0.875rem;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--sd-transition-ui);
}

.sd-accordion__marker::after { transform: rotate(90deg); }

.sd-accordion__item[open] > .sd-accordion__summary .sd-accordion__marker {
  background: var(--sd-color-brand-blue);
  border-color: var(--sd-color-brand-blue);
  color: var(--sd-color-white);
}

.sd-accordion__item[open] > .sd-accordion__summary .sd-accordion__marker::after { transform: rotate(0deg); }

.sd-accordion__content {
  padding: 0 var(--sd-space-2) var(--sd-space-5) 0;
  color: var(--sd-color-text-default);
}

.sd-accordion__content > * + * { margin-top: var(--sd-space-3); }