/* printable-worksheets.css
   Browse/catalog page layout — sidebar, filters, grid.
   Requires ws-card.css for the card component itself.
   ------------------------------------------------------------------ */

/* Layout shell */
.ws-catalog {
  display: grid;
  grid-template-columns: 14rem 1fr;
  min-height: calc(100vh - 60px);
  align-items: start;
}

/* Sidebar */
.ws-sidebar {
  position: sticky;
  top: 60px;
  height: calc(100vh - 60px);
  overflow-y: auto;
  border-right: 1px solid var(--border);
  background: var(--sidebar);
  padding: 2rem 1.2rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.ws-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border);
}

.ws-filter-reset {
  font-family: 'Lekton', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--text3);
  background: none;
  border: 1px solid var(--border-lt);
  padding: 0.2rem 0.55rem;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.ws-filter-reset:hover { color: var(--accent); border-color: var(--accent); }

.ws-filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  margin-bottom: 1.4rem;
}

.ws-filter-label {
  font-family: 'Lekton', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--text3);
  text-transform: uppercase;
  margin-bottom: 0.45rem;
  display: block;
}

.ws-chip {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.42rem 0.6rem;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.76rem;
  color: var(--text2);
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  user-select: none;
}
.ws-chip:hover { background: var(--accent-bg); color: var(--text); }
.ws-chip input[type="checkbox"] { display: none; }
.ws-chip.is-active {
  background: var(--accent-bg);
  border-color: var(--accent);
  color: var(--text);
}
.ws-chip.is-active::before {
  content: '✓';
  font-size: 0.6rem;
  color: var(--accent);
  font-weight: bold;
}

.ws-result-count {
  font-family: 'Lekton', monospace;
  font-size: 0.62rem;
  color: var(--text3);
  letter-spacing: 0.06em;
  margin-top: auto;
  padding-top: 1.5rem;
}

/* Main area */
.ws-main {
  padding: 2.5rem 3rem 4rem;
  min-width: 0;
}

.ws-page-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.8rem;
  margin-bottom: 2rem;
}

.ws-eyebrow {
  font-family: 'Lekton', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}

.ws-heading {
  font-family: 'Cormorant Upright', serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: 0.6rem;
}

.ws-lede {
  font-size: 0.95rem;
  color: var(--text2);
  max-width: 60ch;
  line-height: 1.8;
}

/* Mobile filter button */
.ws-mobile-filter-btn {
  display: none;
  align-items: center;
  gap: 0.5rem;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--text2);
  background: var(--surface);
  border: 1px solid var(--border-lt);
  padding: 0.55rem 1rem;
  cursor: pointer;
  margin-bottom: 1.5rem;
  transition: color 0.15s, border-color 0.15s;
}
.ws-mobile-filter-btn:hover { color: var(--text); border-color: var(--text2); }

.ws-active-count {
  background: var(--accent);
  color: #fff;
  font-size: 0.6rem;
  font-weight: 600;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Grid */
.ws-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* Empty state */
.ws-empty {
  padding: 4rem 2rem;
  text-align: center;
  color: var(--text2);
}
.ws-empty-icon {
  display: block;
  font-family: 'Cormorant Upright', serif;
  font-size: 2.5rem;
  color: var(--text3);
  margin-bottom: 1rem;
}
.ws-empty p { font-size: 0.9rem; line-height: 1.8; }
.ws-empty-reset {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.85rem;
  padding: 0;
  text-decoration: underline;
}
.ws-empty-reset:hover { color: var(--accent-hover); }

/* Responsive */
@media (max-width: 900px) {
  .ws-catalog { grid-template-columns: 1fr; }
  .ws-sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    display: none;
  }
  .ws-sidebar.is-open { display: flex; }
  .ws-mobile-filter-btn { display: flex; }
  .ws-main { padding: 2rem 1.5rem 3rem; }
}

@media (max-width: 480px) {
  .ws-main { padding: 1.5rem 1.25rem 3rem; }
  .ws-grid { grid-template-columns: 1fr; }
}