/**
 * ============================================================================
 * SCHOOLHOUSEWIT — DESIGN LIBRARY & HOMEPAGE TEASER STYLES
 * ============================================================================
 * Follows the brand token system in styles/tokens.css and structure in styles/main.css.
 */

/* --------------------------------------------------------------------------
 * 1. HOMEPAGE TEASER SECTION
 * -------------------------------------------------------------------------- */
.library-teaser-section {
  padding-top: clamp(2.5rem, 5vw, 4.5rem);
  padding-bottom: clamp(2.5rem, 5vw, 4.5rem);
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-subtle) 100%);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.library-teaser-card {
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(1.75rem, 4vw, 3rem);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  align-items: center;
  position: relative;
  overflow: hidden;
}

.library-teaser-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background-color: var(--color-accent-gold);
}

.library-teaser-content {
  text-align: center;
  max-width: 640px;
}

.library-teaser-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.35rem 0.85rem;
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
  background-color: var(--color-accent-gold-light);
  color: var(--color-accent-gold-dark);
  margin-bottom: var(--space-sm);
  border: 1px solid rgba(217, 119, 6, 0.2);
}

.library-teaser-heading {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.35rem);
  font-weight: var(--fw-black);
  color: var(--color-text-main);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xs);
  line-height: 1.2;
}

.library-teaser-body {
  font-size: var(--fs-base);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.library-teaser-cta {
  display: inline-flex;
}

/* --------------------------------------------------------------------------
 * 2. DESIGN LIBRARY HERO
 * -------------------------------------------------------------------------- */
.library-hero {
  padding-top: clamp(2.5rem, 5vw, 4.5rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
  background: radial-gradient(circle at 50% 0%, rgba(245, 158, 11, 0.08) 0%, transparent 60%),
              var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}

.library-hero-inner {
  max-width: 760px;
  margin: 0 auto;
}

.library-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.35rem 0.95rem;
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  border-radius: var(--radius-full);
  background-color: var(--color-accent-gold-light);
  color: var(--color-accent-gold-dark);
  border: 1px solid rgba(217, 119, 6, 0.25);
  margin-bottom: var(--space-md);
}

.library-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: var(--fw-black);
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--color-text-main);
  margin-bottom: var(--space-md);
}

.library-hero-intro {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 640px;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
 * 3. CONTROLS: SEARCH & CATEGORY FILTERS
 * -------------------------------------------------------------------------- */
.library-controls-section {
  position: sticky;
  top: 72px; /* below sticky site header */
  z-index: 90;
  background-color: rgba(251, 249, 245, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) 0;
  box-shadow: 0 4px 12px -2px rgba(22, 32, 44, 0.04);
  transition: all var(--transition-fast);
}

.controls-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* Search bar */
.search-form-wrap {
  width: 100%;
}

.search-field-container {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.search-label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--color-text-main);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  gap: 6px;
}

.search-input-group {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 14px;
  width: 18px;
  height: 18px;
  color: var(--color-text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  height: 48px;
  padding: 0 44px 0 42px;
  font-size: var(--fs-base);
  color: var(--color-text-main);
  background-color: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-accent-gold-dark);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.18);
}

.search-clear-btn {
  position: absolute;
  right: 12px;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  background-color: var(--color-bg-subtle);
  font-size: 1.15rem;
  line-height: 1;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.search-clear-btn:hover {
  background-color: var(--color-border);
  color: var(--color-text-main);
}

.search-clear-btn.is-active {
  display: inline-flex;
}

/* Category filter chips */
.filters-scroll-wrap {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
  padding-bottom: 4px;
  margin: 0 -4px;
  padding: 0 4px 6px;
}

.filters-scroll-wrap::-webkit-scrollbar {
  height: 4px;
}

.filters-scroll-wrap::-webkit-scrollbar-thumb {
  background-color: var(--color-border);
  border-radius: var(--radius-full);
}

.category-chips-list {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  width: max-content;
  min-width: 100%;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 42px;
  padding: 0.5rem 1.1rem;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text-main);
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  cursor: pointer;
}

.filter-chip:hover {
  border-color: var(--color-text-main);
  background-color: var(--color-surface-hover);
  transform: translateY(-1px);
}

.filter-chip[aria-pressed="true"],
.filter-chip.is-active {
  background-color: var(--color-surface-dark);
  color: #FFFFFF;
  border-color: var(--color-surface-dark);
  box-shadow: 0 2px 6px rgba(22, 32, 44, 0.2);
}

.filter-chip[aria-pressed="true"]:hover,
.filter-chip.is-active:hover {
  background-color: var(--color-button-primary-hover);
  border-color: var(--color-button-primary-hover);
}

.chip-count {
  font-size: var(--fs-xs);
  padding: 2px 6px;
  border-radius: var(--radius-full);
  background-color: rgba(0, 0, 0, 0.08);
  font-weight: var(--fw-bold);
}

.filter-chip[aria-pressed="true"] .chip-count,
.filter-chip.is-active .chip-count {
  background-color: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
}

/* --------------------------------------------------------------------------
 * 4. RESULTS META BAR
 * -------------------------------------------------------------------------- */
.results-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: var(--space-lg) 0 var(--space-sm);
}

.results-count-text {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text-muted);
}

.results-count-number {
  font-weight: var(--fw-black);
  color: var(--color-text-main);
}

.active-filter-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.reset-filters-link {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--color-accent-red);
  text-decoration: underline;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.reset-filters-link:hover {
  color: #9A3412;
}

/* --------------------------------------------------------------------------
 * 5. DESIGN GALLERY & CATEGORY GROUPS
 * -------------------------------------------------------------------------- */
.library-gallery-section {
  padding-bottom: clamp(3rem, 6vw, 5.5rem);
}

.category-group-section {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.category-group-section:last-of-type {
  margin-bottom: var(--space-xl);
}

.category-header-wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-xs);
  border-bottom: 2px solid var(--color-border);
}

.category-title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  font-weight: var(--fw-black);
  color: var(--color-text-main);
  letter-spacing: -0.015em;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.category-item-count {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--color-accent-gold-dark);
  background-color: var(--color-accent-gold-light);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
 * 6. CONCEPT CARDS GRID
 * -------------------------------------------------------------------------- */
.concepts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

/* Tablet (2 columns) */
@media (min-width: 580px) {
  .concepts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Desktop (3 columns) */
@media (min-width: 860px) {
  .concepts-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Wide Desktop (4 columns) */
@media (min-width: 1120px) {
  .concepts-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Individual Concept Card */
.concept-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-fast);
  position: relative;
  height: 100%;
}

.concept-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #D1D5DB;
}

/* Card Media / Image Slot */
.card-media-slot {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background-color: #F3EFEA;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-placeholder-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ID Badge floating */
.concept-id-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background-color: rgba(22, 32, 44, 0.88);
  color: #F8FAFC;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 2;
  letter-spacing: 0.05em;
}

/* Placeholder coming soon tag */
.artwork-status-pill {
  position: absolute;
  bottom: 10px;
  left: 10px;
  right: 10px;
  background-color: rgba(255, 255, 255, 0.94);
  color: var(--color-text-main);
  font-size: 0.725rem;
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  text-align: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid rgba(22, 32, 44, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent-gold);
  flex-shrink: 0;
}

.artwork-status-pill.artwork-status-approved {
  background-color: rgba(22, 32, 44, 0.94);
  color: #34D399;
  border-color: rgba(52, 211, 153, 0.4);
}

.status-dot.status-dot-approved {
  background-color: #10B981;
}

/* Card Body */
.concept-card-body {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.concept-category-tag {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.concept-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: var(--fw-bold);
  line-height: 1.35;
  color: var(--color-text-main);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-xs);
  flex-grow: 1;
}

.concept-status-caption {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-top: auto;
  padding-top: var(--space-xs);
  border-top: 1px dashed var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --------------------------------------------------------------------------
 * 7. ZERO-RESULTS EMPTY STATE
 * -------------------------------------------------------------------------- */
.library-empty-state {
  display: none;
  text-align: center;
  padding: clamp(3rem, 6vw, 5rem) var(--space-md);
  background-color: var(--color-surface);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-xl);
  margin: var(--space-xl) 0;
}

.library-empty-state.is-visible {
  display: block;
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  border-radius: 50%;
  background-color: var(--color-accent-gold-light);
  color: var(--color-accent-gold-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-state-title {
  font-family: var(--font-serif);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  color: var(--color-text-main);
  margin-bottom: var(--space-xs);
}

.empty-state-desc {
  font-size: var(--fs-base);
  color: var(--color-text-muted);
  max-width: 440px;
  margin: 0 auto var(--space-lg);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
 * 8. REDUCED MOTION PREFERENCE
 * -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .concept-card,
  .filter-chip,
  .library-controls-section,
  .search-input {
    transition: none !important;
    transform: none !important;
  }
}