/**
 * Rhythm Library Styles
 * Following the chord-library.css pattern with design tokens
 * No hex literals - all values reference CSS variables
 */

/* ============================================================
   PAGE SHELL (shared with chord library)
   ============================================================ */


/* ── Header ── */
.sbn-library-header {
  text-align: center;
  margin-bottom: 40px;
}

.sbn-library-title {
  font-size: 2.4em;
  font-weight: 700;
  color: var(--clr-text);
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}

.sbn-library-subtitle {
  font-size: 1.05em;
  color: var(--clr-text-muted);
  margin: 0 0 32px;
  font-weight: 400;
}

/* ── Search box ── */
.sbn-search-container {
  max-width: 680px;
  margin: 0 auto 28px;
}

.sbn-search-box {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--clr-white);
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 6px 6px 6px 20px;
  transition: border-color 0.2s var(--ease);
}

.sbn-search-box:focus-within {
  border-color: var(--clr-red);
}

.sbn-search-icon {
  color: var(--clr-text-muted);
  flex-shrink: 0;
  margin-right: 12px;
  transition: color 0.2s;
}

.sbn-search-box:focus-within .sbn-search-icon {
  color: var(--clr-red);
}

.sbn-search-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1.1em;
  color: var(--clr-text);
  background: transparent;
  padding: 12px 0;
  font-weight: 500;
  font-family: var(--font-body);
}

.sbn-search-input::placeholder {
  color: var(--clr-text-muted);
  font-weight: 400;
}

.sbn-search-clear {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--clr-surface-2);
  color: var(--clr-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
}

.sbn-search-clear:hover {
  background: var(--clr-red);
  color: var(--clr-white);
}

/* ── Count bar ── */
.sbn-count-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 10px 20px;
  margin-bottom: 24px;
  font-size: 0.9em;
  color: var(--clr-text-muted);
}

.sbn-count-bar strong {
  color: var(--clr-text);
}

.sbn-count-clear {
  border: 1px solid var(--clr-border);
  background: none;
  color: var(--clr-text-muted);
  font-size: 0.85em;
  font-weight: 500;
  cursor: pointer;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  transition: color 0.15s, border-color 0.15s, background 0.15s;
  font-family: var(--font-body);
}

.sbn-count-clear:hover {
  color: var(--clr-red);
  border-color: var(--clr-red);
  background: var(--clr-accent-bg);
}

/* ============================================================
   CONTENT WRAPPER
   ============================================================ */

.sbn-content-wrapper {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.sbn-results-container {
  flex: 1;
  min-width: 0;
  order: 0;
}

/* ── Filter Sidebar ── */
.sbn-filter-sidebar {
  position: sticky;
  top: 80px;
  align-self: flex-start;
  width: 240px;
  min-width: 240px;
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  order: 1;
  scrollbar-width: thin;
  scrollbar-color: var(--clr-border) transparent;
}

.sbn-filter-sidebar::-webkit-scrollbar { width: 4px; }
.sbn-filter-sidebar::-webkit-scrollbar-track { background: transparent; }
.sbn-filter-sidebar::-webkit-scrollbar-thumb {
  background: var(--clr-border);
  border-radius: 2px;
}

.sbn-sidebar-header {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--clr-border);
}

.sbn-sidebar-header h3 {
  margin: 0;
  font-size: 0.95em;
  font-weight: 700;
  color: var(--clr-text);
}

.sbn-sidebar-section {
  margin-bottom: 18px;
}

.sbn-sidebar-label {
  font-size: 0.68em;
  font-weight: 700;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0 0 8px;
  display: block;
}

.sbn-sidebar-options {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.sbn-sidebar-option {
  padding: 4px 10px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  background: var(--clr-white);
  color: var(--clr-text-dim);
  font-size: 0.78em;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  line-height: 1.3;
  font-family: var(--font-body);
}

.sbn-sidebar-option:hover {
  border-color: var(--clr-red);
  color: var(--clr-red);
  background: var(--clr-accent-bg);
}

.sbn-sidebar-option.active {
  background: var(--clr-red);
  border-color: var(--clr-red);
  color: var(--clr-white);
}

.sbn-sidebar-option.active:hover {
  background: var(--clr-accent-dim);
  border-color: var(--clr-accent-dim);
}

.sbn-clear-filters-btn {
  width: 100%;
  padding: 9px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  background: var(--clr-white);
  color: var(--clr-text-muted);
  font-size: 0.82em;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  margin-top: 6px;
  font-family: var(--font-body);
}

.sbn-clear-filters-btn:hover {
  border-color: var(--clr-red);
  color: var(--clr-red);
  background: var(--clr-accent-bg);
}

/* ============================================================
   RHYTHM PATTERN GRID DISPLAY
   ============================================================ */

.sbn-patterns-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
  .sbn-content-wrapper {
    flex-direction: column;
  }

  .sbn-filter-sidebar {
    position: static;
    width: 100%;
    min-width: 100%;
    max-height: none;
    order: -1;
  }

  .sbn-patterns-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

@media (max-width: 768px) {
.sbn-library-title { font-size: 1.8em; }
  .sbn-patterns-grid { grid-template-columns: 1fr; }
}

/* Touch: always show hover controls */
@media (hover: none) {
  .sbn-card-hover-controls {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
    pointer-events: auto;
  }
}