/* Stepper page styles (fleet-rail, fleet-panel, fleet-stepper.js), used by
   national-accounts/store-steps.md.
   Styled in the scorecard design language: flat surfaces, 4px radii, left status bars,
   --sa-* tokens from extra.css so light and slate both work. */

/* ============================================================
   Step head: number tile, title, do line, warnings
   ============================================================ */

/* Step number: square scorecard tile */
.md-typeset .fleet-step-no {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-card);
  background: var(--sa-primary);
  color: var(--sun-white);
  font-size: var(--fs-card-title);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.md-typeset .fleet-step-body { flex: 1 1 auto; min-width: 0; }
.md-typeset .fleet-step-title {
  display: block;
  font-family: var(--sun-font-display);
  font-size: var(--fs-card-title);
  font-weight: 600;
  line-height: 1.3;
  color: var(--sa-text);
}
.md-typeset .fleet-step-do {
  display: block;
  margin-top: var(--sp-1);
  line-height: 1.5;
  color: var(--sa-text-2);
}

/* Gotcha: scorecard callout, watch status */
.md-typeset .fleet-step-warn {
  display: block;
  margin-top: var(--sp-2);
  padding: 6px 12px;
  background: var(--sa-layer-3);
  border: 1px solid var(--sa-border);
  border-left: var(--status-w) solid var(--sa-watch);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  font-size: 13px;
  line-height: 1.45;
  color: var(--sa-text);
}
.md-typeset .fleet-warn-icon { color: var(--sun-orange); font-weight: 700; margin-right: .15em; }

/* ============================================================
   Stepper layout (fleet-stepper.js)
   ============================================================ */

/* Rail: numbered circles on a connecting line, short label under each */
.md-typeset .fleet-rail { margin: 0 0 var(--sp-3); }
.md-typeset .fleet-rail ol {
  display: flex;
  margin: 0;
  padding: var(--sp-1) 0 var(--sp-2);
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}
.md-typeset nav.fleet-rail ol li {  /* nav.… beats Material's [dir=ltr] ol li indent */
  flex: 1 1 0;
  min-width: 84px;
  margin: 0;
  position: relative;
}
/* Connector from the previous circle to this one; green once the previous step is done */
.md-typeset .fleet-rail li + li::before {
  content: "";
  position: absolute;
  top: 19px;
  right: calc(50% + 18px);
  left: calc(-50% + 18px);
  height: 2px;
  background: var(--sa-border);
}
.md-typeset .fleet-rail li:has(.is-done) + li::before { background: var(--sa-good); }

.md-typeset a.fleet-rail-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 4px 4px 0;
  color: var(--sa-text-2);
  text-decoration: none;
  text-align: center;
}
.md-typeset .fleet-rail-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--sa-border);
  background: var(--sa-surface);
  color: var(--sa-text-2);
  font-weight: 700;
  font-size: var(--fs-label);
  font-variant-numeric: tabular-nums;
  transition: background-color .15s, border-color .15s, color .15s;
}
.md-typeset .fleet-rail-label {
  font-size: 12px;
  font-weight: 600;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.md-typeset a.fleet-rail-step:hover { color: var(--sa-text); }
.md-typeset a.fleet-rail-step:hover .fleet-rail-no { border-color: var(--sa-primary); color: var(--sa-primary); }
.md-typeset a.fleet-rail-step:focus-visible { outline: 2px solid var(--sa-primary); outline-offset: 2px; border-radius: var(--radius-card); }

.md-typeset a.fleet-rail-step.is-done .fleet-rail-no {
  background: var(--sa-good);
  border-color: var(--sa-good);
  color: var(--sun-white);
}
.md-typeset a.fleet-rail-step[aria-current="step"] { color: var(--sa-text); }
.md-typeset a.fleet-rail-step[aria-current="step"] .fleet-rail-no {
  background: var(--sa-primary);
  border-color: var(--sa-primary);
  color: var(--sun-white);
  box-shadow: 0 0 0 4px var(--sun-red-tint);
}

/* Panels: one card per step; only the active one shows once the stepper is live */
.md-typeset .fleet-panel {
  margin: 0 0 var(--sp-4);
  background: var(--sa-surface);
  border: 1px solid var(--sa-border);
  border-left: var(--status-w) solid var(--sa-primary);
  border-radius: var(--radius-card);
  box-shadow: var(--sa-card-shadow);
  font-size: var(--fs-base);
  scroll-margin-top: 9rem;
}
.md-typeset .fleet-rail.is-live ~ .fleet-panel:not(.is-active) { display: none; }

.md-typeset .fleet-panel > * { margin-left: var(--sp-3); margin-right: var(--sp-3); }
.md-typeset .fleet-panel > :last-child { margin-bottom: 0; }
/* A screenshot takes the panel's side margins too: width 100% would push it past the right edge */
.md-typeset .fleet-panel > .annotated-screenshot { width: auto; }

.md-typeset .fleet-panel-head {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-3) 0;
}

.md-typeset .fleet-panel-how {
  margin-top: 0;
  padding-top: var(--sp-3);
  border-top: 1px solid var(--sa-border);
  font-family: var(--sun-font-text);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--sa-primary);
}
[data-md-color-scheme="slate"] .md-typeset .fleet-panel-how { color: var(--sun-red-light); }

/* Previous / Next step bars: a strip across the panel's top and bottom */
.md-typeset .fleet-panel > .fleet-panel-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  margin: 0;
  padding: 8px var(--sp-3);
  background: var(--sa-layer-3);
}
.md-typeset .fleet-panel > .fleet-panel-nav-top {
  border-bottom: 1px solid var(--sa-border);
  border-radius: 0 var(--radius-card) 0 0;
}
.md-typeset .fleet-panel > .fleet-panel-nav-bottom {
  margin-top: var(--sp-3);
  border-top: 1px solid var(--sa-border);
  border-radius: 0 0 var(--radius-card) 0;
}
.md-typeset .fleet-nav-count {
  font-size: var(--fs-label);
  color: var(--sa-text-2);
  font-variant-numeric: tabular-nums;
}
.md-typeset .fleet-nav-btn {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 12px;
  border: 0;
  border-radius: var(--radius-card);
  background: var(--sa-primary);
  color: var(--sun-white);
  font-family: var(--sun-font-text);
  font-size: var(--fs-label);
  font-weight: 600;
  cursor: pointer;
  transition: background-color .15s;
}
.md-typeset .fleet-nav-btn:hover:not(:disabled) { background: var(--sun-red-dark); }
.md-typeset .fleet-nav-btn:disabled { opacity: .35; cursor: not-allowed; }
.md-typeset .fleet-nav-prev {
  background: var(--sa-surface);
  color: var(--sa-text);
  border: 1px solid var(--sa-border);
}
.md-typeset .fleet-nav-prev:hover:not(:disabled) { background: var(--sa-surface); border-color: var(--sa-primary); color: var(--sa-primary); }

/* Fit to screen: on a desktop-sized window the rail, the step and its Previous / Next bars all
   fit in the viewport. The step's content scrolls inside the panel and the bars stay pinned.
   fleet-stepper.js sets --fleet-fit-offset (header + rail) and brings the rail under the header. */
@media screen and (min-width: 45em) and (min-height: 32em) {
  .md-typeset .fleet-rail.is-live ~ .fleet-panel.is-active {
    max-height: calc(100dvh - var(--fleet-fit-offset, 12rem));
    overflow-y: auto;
    overscroll-behavior: contain;
    overflow-anchor: none;  /* images loading inside the panel must not drag the page along */
    scrollbar-width: thin;
  }
  .md-typeset .fleet-rail.is-live ~ .fleet-panel > .fleet-panel-nav {
    position: sticky;
    z-index: 2;
  }
  .md-typeset .fleet-rail.is-live ~ .fleet-panel > .fleet-panel-nav-top { top: 0; }
  .md-typeset .fleet-rail.is-live ~ .fleet-panel > .fleet-panel-nav-bottom { bottom: 0; }
}

/* Phones: the rail scrolls sideways and only the active step keeps its label */
@media screen and (max-width: 44.9375em) {
  .md-typeset nav.fleet-rail ol li { flex: 0 0 auto; min-width: 48px; }
  .md-typeset nav.fleet-rail ol li:has([aria-current="step"]) { min-width: 136px; }
  .md-typeset .fleet-rail.is-live a.fleet-rail-step:not([aria-current="step"]) .fleet-rail-label { display: none; }
  .md-typeset .fleet-panel > * { margin-left: 12px; margin-right: 12px; }
  .md-typeset .fleet-panel > .fleet-panel-nav { padding: 8px 12px; }
}