/* explorer.css — GiveVoice Explorer */

/* ============================================
   EXPLORER LAYOUT
   ============================================ */
.explorer {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.explorer-header {
  text-align: center;
  padding: var(--space-16) var(--space-6) var(--space-8);
  max-width: var(--content-wide);
  margin: 0 auto;
  width: 100%;
}

@media (min-width: 768px) {
  .explorer-header {
    padding: var(--space-20) var(--space-8) var(--space-12);
  }
}

.explorer-logo {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 300;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: var(--space-4);
}

.explorer-tagline {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-text-muted);
  max-width: 40ch;
  margin: 0 auto;
}

/* ============================================
   FILTER BAR
   ============================================ */
.explorer-filters {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  padding: 0 var(--space-6) var(--space-8);
  flex-wrap: wrap;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: lowercase;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-interactive);
}

.filter-btn:hover {
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

.filter-btn[aria-pressed="true"] {
  background: var(--color-text);
  color: var(--color-text-inverse);
  border-color: var(--color-text);
}

.filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.4em;
  height: 1.4em;
  font-size: 0.75em;
  line-height: 1;
  margin-left: var(--space-1);
  padding: 0 0.3em;
  border-radius: var(--radius-full);
  background: var(--color-surface-offset);
  color: var(--color-text-faint);
}

.filter-btn[aria-pressed="true"] .filter-count {
  background: oklch(from var(--color-text) l c h / 0.2);
  color: var(--color-text-inverse);
}

/* ============================================
   GRID
   ============================================ */
.explorer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
  padding: 0 var(--space-6) var(--space-16);
  max-width: var(--content-wide);
  margin: 0 auto;
  width: 100%;
}

@media (min-width: 768px) {
  .explorer-grid {
    padding: 0 var(--space-8) var(--space-20);
    gap: var(--space-8);
  }
}

@media (min-width: 1024px) {
  .explorer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   CARD — BASE
   ============================================ */
.voicing-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  transition: all var(--transition-interactive);
  text-decoration: none;
  color: inherit;
  position: relative;
}

.voicing-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* ============================================
   CARD — IMAGE VARIANT
   ============================================ */
.card-image-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-surface-offset);
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.voicing-card:hover .card-image {
  transform: scale(1.03);
}

/* ============================================
   CARD — TYPOGRAPHIC FALLBACK
   ============================================ */
.card-type-hero {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}

/* Seed-type-based subtle backgrounds */
.card-type-hero[data-seed="word"] {
  background: linear-gradient(135deg, var(--color-surface-offset) 0%, var(--color-surface-offset-2) 100%);
}

.card-type-hero[data-seed="song"] {
  background: linear-gradient(135deg, var(--color-primary-highlight) 0%, var(--color-surface-offset) 100%);
}

.card-type-hero[data-seed="brand"] {
  background: linear-gradient(135deg, var(--color-gold-highlight) 0%, var(--color-surface-offset) 100%);
}

.card-type-hero[data-seed="book"] {
  background: linear-gradient(135deg, var(--color-purple-highlight) 0%, var(--color-surface-offset) 100%);
}

.card-hero-word {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 1rem + 5vw, 4rem);
  font-weight: 300;
  line-height: 1;
  color: var(--color-text);
  opacity: 0.12;
  text-align: center;
  text-transform: lowercase;
  letter-spacing: -0.03em;
  user-select: none;
  position: absolute;
  /* Allow overflow for large words */
  white-space: nowrap;
}

/* ============================================
   CARD — BODY
   ============================================ */
.card-body {
  padding: var(--space-5) var(--space-5) var(--space-4);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-seed-type {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-1);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  line-height: 1.15;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.card-artist {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.card-essence {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-style: italic;
  line-height: 1.55;
  color: var(--color-text-muted);
  flex: 1;
  /* Clamp to 3 lines */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--color-divider);
}

.card-tier {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.card-tier[data-tier="high"] {
  color: var(--color-gold);
}

.card-tier[data-tier="med"] {
  color: var(--color-primary);
}

.card-date {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--color-text-faint);
}

/* ============================================
   EXPLORER FOOTER
   ============================================ */
.explorer-footer {
  text-align: center;
  padding: var(--space-8) var(--space-6) var(--space-12);
  border-top: 1px solid var(--color-divider);
}

.explorer-footer-tagline {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-style: italic;
  color: var(--color-text-muted);
}

/* ============================================
   EMPTY STATE
   ============================================ */
.explorer-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-16) var(--space-6);
  display: none;
}

.explorer-empty.visible {
  display: block;
}

.explorer-empty-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-text-faint);
}