/* ==========================================================================
   IRONITT v2 — Discover Nests
   --------------------------------------------------------------------------
   The public directory (js/communication.js _showDiscoverPanel) and its
   settings pane in a nest's settings (case 'discovery').
   The directory is a page that scrolls: a title with the count, a search
   field and a two-way sort, a row of categories, then the nests as flat
   cards. A card says what the nest is and has one action. The settings pane
   follows Settings: sections split by hairlines, no card inside a card.
   JS contracts kept: #discover-pill-indicator and #discover-sort-indicator
   are sized and moved with inline width/transform; .active on the pill and
   sort buttons; .joined / .loading on the join button.
   ========================================================================== */

/* ---- Page --------------------------------------------------------------- */
.discovery-container { flex: 1; display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.discovery-scroll {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-xl) var(--space-2xl);
  overflow-x: hidden;
  overflow-y: auto;
}

.discovery-header {
  flex-shrink: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-md) var(--space-lg);
}
.discovery-header-text { display: grid; gap: 4px; min-width: 0; }
.discovery-title {
  margin: 0;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
}
.discovery-subtitle { margin: 0; color: var(--text-muted); font-size: var(--font-size-sm); }
.discovery-subtitle strong { color: var(--text-primary); font-weight: var(--font-weight-semibold); font-variant-numeric: tabular-nums; }

.discovery-toolbar { display: flex; align-items: center; gap: var(--space-sm); }

.discovery-search {
  position: relative;
  display: flex;
  align-items: center;
  width: 300px;
}
.discovery-search i {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  font-size: 13px;
  pointer-events: none;
}
.discovery-search input {
  width: 100%;
  height: 40px;
  padding: 0 14px 0 38px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font: inherit;
  font-size: var(--font-size-sm);
  outline: 0;
  transition: border-color 150ms ease;
}
.discovery-search input::placeholder { color: var(--text-muted); }
.discovery-search input:hover { border-color: var(--border-strong); }
.discovery-search input:focus { border-color: var(--accent-color); box-shadow: none; }

/* Popular / Newest: a two-way switch; the indicator slides under the pick. */
.discovery-sort {
  position: relative;
  display: flex;
  flex-shrink: 0;
  padding: 3px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  background: var(--bg-secondary);
}
.discovery-sort-indicator {
  position: absolute;
  top: 0;
  left: 0;
  border-radius: var(--radius-pill);
  background: var(--bg-hover);
  opacity: 0;
  pointer-events: none;
  transition: transform 220ms var(--island-ease), width 220ms var(--island-ease);
}
.discovery-sort-btn {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 14px;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: color 150ms ease;
}
.discovery-sort-btn i { font-size: 11px; }
.discovery-sort-btn:hover { color: var(--text-primary); }
.discovery-sort-btn.active { color: var(--text-primary); }
.discovery-sort-btn.active i { color: var(--accent-color); }

/* Categories: one quiet row of words; the pick sits on a soft pill. */
.discovery-pillbar {
  position: relative;
  display: flex;
  gap: 2px;
  flex-shrink: 0;
  padding: 0 0 var(--space-md);
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
  scrollbar-width: none;
}
.discovery-pillbar::-webkit-scrollbar { display: none; }
.discovery-pillbar-indicator {
  position: absolute;
  top: 0;
  left: 0;
  height: 34px;
  border-radius: var(--radius-pill);
  background: var(--bg-hover);
  opacity: 0;
  pointer-events: none;
  transition: transform 220ms var(--island-ease), width 220ms var(--island-ease);
}
.discovery-pillbar .discovery-pill {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  height: 34px;
  padding: 0 14px;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
  cursor: pointer;
  transition: color 150ms ease;
}
.discovery-pillbar .discovery-pill:hover { color: var(--text-primary); }
.discovery-pillbar .discovery-pill.active { color: var(--text-primary); font-weight: var(--font-weight-semibold); }

/* ---- Nest cards --------------------------------------------------------- */
.discovery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.discovery-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-rows: auto 1fr auto;
  align-items: center;
  column-gap: var(--space-sm);
  row-gap: 12px;
  padding: var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  transition: border-color 150ms ease;
}
.discovery-card:hover { border-color: var(--border-strong); }
.discovery-card-top { grid-column: 1 / -1; display: flex; align-items: center; gap: 12px; min-width: 0; }
.discovery-card-icon {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  overflow: hidden;
  border-radius: var(--radius-round);
  background: var(--bg-tertiary);
  color: var(--accent-color);
  font-family: var(--font-display);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
}
.discovery-card-icon img { width: 100%; height: 100%; object-fit: cover; }
.discovery-card-heading { display: grid; gap: 2px; min-width: 0; }
.discovery-card-name {
  overflow: hidden;
  color: var(--text-primary);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  text-overflow: ellipsis;
  white-space: nowrap;
}
.discovery-card-category { color: var(--text-muted); font-size: var(--font-size-xs); }
.discovery-card-desc {
  grid-column: 1 / -1;
  align-self: start;
  margin: 0;
  overflow: hidden;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}
.discovery-card-stats { grid-column: 1; color: var(--text-muted); font-size: var(--font-size-xs); }
.discovery-stat { display: inline-flex; align-items: center; gap: 6px; }
.discovery-stat strong { color: var(--text-primary); font-weight: var(--font-weight-semibold); font-variant-numeric: tabular-nums; }

.discovery-join-btn {
  grid-column: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 16px;
  border: 0;
  border-radius: var(--radius-pill);
  background: var(--accent-color);
  color: var(--accent-text);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: background-color 150ms ease;
}
.discovery-join-btn:hover { background: var(--accent-hover); }
.discovery-join-btn:focus-visible { outline: 0; box-shadow: var(--focus-ring); }
.discovery-join-btn.loading { opacity: 0.6; cursor: progress; }
/* Already a member: a plain statement, not a dead button. */
.discovery-join-btn.joined,
.discovery-join-btn.joined:hover {
  padding: 0;
  background: transparent;
  color: var(--text-muted);
  cursor: default;
}

/* Loading cards: the same shape, quiet blocks. */
.discovery-card--skeleton .sk { border-radius: var(--radius-sm); background: var(--bg-tertiary); }
.discovery-card--skeleton .sk-icon { width: 44px; height: 44px; border-radius: var(--radius-round); }
.discovery-card--skeleton .sk-lines { display: grid; flex: 1; gap: 8px; }
.discovery-card--skeleton .sk-line { height: 10px; }
.discovery-card--skeleton > .sk-line { grid-column: 1 / -1; }
.discovery-card--skeleton .sk-btn { grid-column: 2; width: 84px; height: 34px; border-radius: var(--radius-pill); }
.discovery-card--skeleton .w40 { width: 40%; }
.discovery-card--skeleton .w60 { width: 60%; }
.discovery-card--skeleton .w70 { width: 70%; }
.discovery-card--skeleton .w90 { width: 90%; }

/* ---- Empty / error: an icon and a sentence ------------------------------ */
.discovery-empty {
  grid-column: 1 / -1;
  display: grid;
  justify-items: center;
  gap: 6px;
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
}
.discovery-empty-icon { margin-bottom: var(--space-xs); color: var(--text-muted); font-size: var(--font-size-lg); }
.discovery-empty-title { color: var(--text-primary); font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold); }
.discovery-empty-desc { max-width: 40ch; color: var(--text-muted); font-size: var(--font-size-xs); line-height: 1.5; }

/* ---- Settings pane ------------------------------------------------------ */
.discovery-settings { display: grid; }

.discovery-status-card { display: flex; align-items: center; gap: var(--space-md); }
.discovery-status-text { flex: 1; display: grid; gap: 4px; min-width: 0; }
.discovery-status-title {
  margin: 0;
  color: var(--text-primary);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
}
.discovery-status-card.is-public .discovery-status-title { color: var(--accent-color); }
.discovery-status-desc { margin: 0; color: var(--text-muted); font-size: var(--font-size-sm); line-height: 1.5; }
.discovery-status-toggle { flex-shrink: 0; }

.discovery-form-card { display: grid; gap: var(--space-md); }
.discovery-form-field { display: grid; gap: var(--space-sm); }
.discovery-form-field > label { color: var(--text-secondary); font-size: var(--font-size-xs); font-weight: var(--font-weight-semibold); }
.discovery-textarea-wrap { position: relative; }
.discovery-textarea-wrap textarea {
  display: block;
  width: 100%;
  min-height: 112px;
  padding: 12px 14px 28px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font: inherit;
  font-size: var(--font-size-sm);
  line-height: 1.5;
  resize: vertical;
  outline: 0;
  transition: border-color 150ms ease;
}
.discovery-textarea-wrap textarea:hover { border-color: var(--border-strong); }
.discovery-textarea-wrap textarea:focus { border-color: var(--accent-color); }
.discovery-textarea-counter {
  position: absolute;
  right: 12px;
  bottom: 8px;
  color: var(--text-muted);
  font-size: var(--font-size-2xs);
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}

.discovery-cat-picker { display: flex; flex-wrap: wrap; gap: 6px; }
.discovery-cat-picker .discovery-pill {
  height: 32px;
  padding: 0 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease, background-color 150ms ease;
}
.discovery-cat-picker .discovery-pill:hover { border-color: var(--border-strong); color: var(--text-primary); }
.discovery-cat-picker .discovery-pill.active { border-color: var(--accent-color); background: var(--accent-light); color: var(--accent-color); }
.discovery-pill:focus-visible { outline: 0; box-shadow: var(--focus-ring); }

/* The preview is the card itself, at the width the directory gives it. */
.discovery-preview-stage { max-width: 360px; }

.discovery-save-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-top: 1px solid var(--border-color);
}
.discovery-save-bar .full-settings__save-btn { margin: 0; }
.discovery-save-hint { color: var(--text-muted); font-size: var(--font-size-sm); }

/* ---- Phones ------------------------------------------------------------- */
@media (max-width: 768px) {
  .discovery-scroll { gap: var(--space-md); padding: var(--space-md) var(--space-md) var(--space-xl); }
  .discovery-title { font-size: var(--font-size-lg); }
  .discovery-header { align-items: stretch; }
  .discovery-toolbar { flex-wrap: wrap; width: 100%; }
  .discovery-search { flex: 1 1 100%; width: auto; }
  .discovery-pillbar { margin: 0 calc(-1 * var(--space-md)); padding: 0 var(--space-md) var(--space-sm); }
  .discovery-grid { grid-template-columns: 1fr; gap: var(--space-sm); }
  .discovery-preview-stage { max-width: none; }
}

@media (prefers-reduced-motion: reduce) {
  .discovery-sort-indicator, .discovery-pillbar-indicator { transition: none; }
}