/* =====================================================================
   stories-lab.html - master-detail prototype for the Stories tab.

   Layout strategy:
   - Desktop (≥ 900px): sidebar (~320px) + detail panel, side-by-side
   - Mobile (< 900px): single column, page-level master-detail with
     [data-view] flipping between "list" and "detail" views

   Uses the site's theme vars (--bg, --text-h, --accent, --border, etc.)
   so light/dark switching from styles.css just works.
   ===================================================================== */

/* ---- Page chrome ---------------------------------------------------- */
body.lab {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text-p);
  font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-feature-settings: "ss01", "tnum";
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* =====================================================================
   storiesLab - master-detail layout
   ===================================================================== */
/* `display: grid` below overrides the browser default `[hidden] { display: none }`,
   so we need an explicit hidden rule. Without this, switching to the Numbers
   tab leaves the Stories panel still rendering as a grid below. */
.storiesLab[hidden] { display: none !important; }

.storiesLab {
  /* No own max-width/horizontal padding - the site's .container (parent in
     projects.html) controls page width and gutters. Adding our own here
     would double-pad and visually shrink the panel vs the header above. */
  margin: clamp(16px, 3vw, 28px) 0 0;
  padding: 0 0 clamp(40px, 6vw, 80px);

  display: grid;
  grid-template-columns: 320px 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}

/* ---- LIST (sidebar) ------------------------------------------------- */
.sl-list {
  position: sticky;
  top: 24px;
  align-self: start;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  padding: 4px;
}

.sl-list__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 0 4px 10px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

.sl-list__title {
  margin: 0;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--text-p);
}

.sl-list__count {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-p);
  opacity: 0.55;
  font-variant-numeric: tabular-nums;
}

.sl-list__nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-top: 4px;
}

.sl-item {
  display: block;
  padding: 12px 14px;
  border-radius: 10px;
  text-decoration: none;
  color: var(--text-p);
  border: 1px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
  cursor: pointer;
}

.sl-item:hover {
  background: var(--accent-soft, rgba(37,99,235,0.06));
  border-color: var(--border);
}

.sl-item.is-active {
  background: var(--accent-soft, rgba(37,99,235,0.10));
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border));
}

.sl-item__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-h);
  letter-spacing: -0.2px;
  line-height: 1.3;
}

.sl-item.is-active .sl-item__title { color: var(--accent); }

.sl-item__meta {
  margin-top: 4px;
  font-size: 0.72rem;
  letter-spacing: 0.2px;
  color: var(--text-p);
  opacity: 0.7;
}

/* ---- DETAIL --------------------------------------------------------- */
.sl-detail {
  min-width: 0;
}

/* Hidden on desktop - the active tab + the highlighted item in the
   side list already tell the visitor where they are, and the title
   right below repeats the project name. Brought back on mobile (≤900px)
   where the side list collapses out of view and the back button matters. */
.sl-detail__top {
  display: none;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.sl-detail__back {
  display: none;     /* shown on mobile */
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text-h);
  font-size: 0.86rem;
  font-weight: 700;
  cursor: pointer;
  padding: 4px 0;
  font-family: inherit;
}
.sl-detail__back:hover { opacity: 0.7; }

.sl-detail__crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--text-p);
  opacity: 0.7;
  min-width: 0;
}
.sl-detail__crumbSep { opacity: 0.4; }
.sl-detail__crumbCurrent {
  color: var(--text-h);
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.88rem;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---- DETAIL: content ----------------------------------------------- */
.sl-content {
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-width: 0;
}

.sl-content__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sl-content__meta {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--text-p);
  opacity: 0.7;
}

.sl-content__title {
  margin: 0;
  font-size: clamp(1.6rem, 3.2vw, 2.2rem);
  font-weight: 900;
  letter-spacing: -0.8px;
  line-height: 1.1;
  color: var(--text-h);
}

/* Tags as subtle inline chips - light background, no border, no shouting.
   Reads like Markdown inline-code: present but doesn't compete with the
   title and hook. Mixed case for readability. */
.sl-content__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 8px;
}

.sl-tag {
  display: inline-block;
  padding: 3px 9px;
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.4;
  color: var(--text-p);
  background: color-mix(in srgb, var(--text-h) 7%, transparent);
  border-radius: 4px;
  white-space: nowrap;
}

.sl-content__hook {
  margin: 0;
  padding: 0 0 0 16px;
  border-left: 3px solid var(--border);
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  font-weight: 600;
  font-style: italic;
  line-height: 1.4;
  color: var(--text-h);
  letter-spacing: -0.2px;
  max-width: 56ch;
}

.sl-content__body {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-p);
  max-width: 70ch;
}

.sl-content__body p {
  margin: 0 0 1em;
}

/* Live link below the body - shown only for projects that have a `link`
   field set (toggled via the `hidden` attribute in stories.js). Reads as
   an editorial CTA: bold label + arrow, underline on hover. */
.sl-content__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 4px 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.2px;
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.sl-content__link i {
  font-size: 0.95rem;
  transition: transform 0.25s ease;
}

.sl-content__link:hover {
  opacity: 0.8;
}

.sl-content__link:hover i {
  transform: translate(2px, -2px);
}

/* ---- DETAIL: prev/next pager --------------------------------------- */
/* Hidden on desktop - the side list already lets the user pick any story
   directly, so the prev/next pair is redundant. Brought back on mobile
   (≤900px) below, where the list collapses out of view. */
.sl-detail__pager {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.sl-pager__btn {
  appearance: none;
  border: 1px solid var(--border);
  background: transparent;
  border-radius: 12px;
  padding: 14px 18px;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  color: var(--text-p);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background 0.15s, border-color 0.15s, transform 0.15s;
  min-width: 0;
}

.sl-pager__btn--next {
  text-align: right;
  justify-content: flex-end;
}

.sl-pager__btn:hover:not(:disabled) {
  background: var(--accent-soft, rgba(37,99,235,0.06));
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border));
  transform: translateY(-1px);
}

.sl-pager__btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.sl-pager__dir {
  font-size: 1rem;
  color: var(--text-h);
  opacity: 0.7;
  flex-shrink: 0;
}

.sl-pager__lbl {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-h);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

/* =====================================================================
   MOBILE: single-column master-detail (data-view flips views)
   ===================================================================== */
@media (max-width: 900px) {
  .storiesLab {
    grid-template-columns: 1fr;
    gap: 0;
    padding-bottom: 32px;
  }

  .sl-list {
    position: static;
    max-height: none;
    overflow: visible;
    padding: 4px 0;
  }

  /* Mobile master-detail flip */
  .storiesLab[data-view="list"]   .sl-detail { display: none; }
  .storiesLab[data-view="detail"] .sl-list   { display: none; }

  /* Bring back the top bar (was hidden on desktop) - on mobile we need
     the back button to escape the detail view. */
  .sl-detail__top { display: flex; }
  .sl-detail__back { display: inline-flex; align-items: center; }

  /* On mobile, breadcrumbs duplicate info (the title is right below).
     Keep only the back button - less noise, more room. */
  .sl-detail__crumbs { display: none; }

  /* Bring back the prev/next pager on mobile - the side list is gone,
     so this is the primary way to move between stories. */
  .sl-detail__pager { display: grid; }

  /* Tap-targets larger */
  .sl-item { padding: 14px 14px; }

  .sl-content__title { letter-spacing: -0.5px; }
}

/* Slightly tighter cards on really wide screens */
@media (min-width: 1400px) {
  .storiesLab { grid-template-columns: 360px 1fr; }
}

/* Print: list hidden, detail full width */
@media print {
  .sl-list, .sl-detail__top, .sl-detail__pager {
    display: none !important;
  }
  .storiesLab { display: block; padding: 0; }
}