// ─────────────────────────────────────────────────────────────────────────────
// Page: Explore
// File: src/scss/pages/_explore.scss
//
// Structural layout only — zero colors, zero typography.
// All visual rules live in components/_search.scss and patterns/_surfaces.scss.
// ─────────────────────────────────────────────────────────────────────────────

// ── Browse layout — filter sidebar + main grid ────────────────────────────────
.browse-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  align-items: start;
  gap: 0;
  padding-top: var(--space-3);

  @media (max-width: 900px) {
    grid-template-columns: 1fr;
  }
}

.browse-layout__sidebar {
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-3);
  position: sticky;
  top: 0;
  max-height: 100vh;
  overflow-y: auto;

  @media (max-width: 900px) { display: none; }
}

.browse-layout__content {
  padding: 0 var(--space-4);
  min-width: 0;
}

// ── Sidebar components ────────────────────────────────────────────────────────
.sidebar-section {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border-subtle);

  &:last-child { border-bottom: none; }

  &--header { padding-bottom: var(--space-2); }
}

.sidebar-section__hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-section-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 var(--space-2);
}

.sidebar-clear {
  font-size: var(--text-xs);
  color: var(--color-accent);
  text-decoration: none;
  opacity: 0.8;

  &:hover { opacity: 1; text-decoration: underline; }
}

.sidebar-radio {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 3px 0;

  &:hover { color: var(--text-primary); }

  input[type="radio"] {
    appearance: none;
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 1.5px solid var(--border-default);
    background: transparent;
    flex-shrink: 0;
    position: relative;
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);

    &::after {
      content: '';
      position: absolute;
      inset: 3px;
      border-radius: 50%;
      background: transparent;
      transition: background var(--transition-fast);
    }

    &:checked {
      border-color: var(--color-accent);
      &::after { background: var(--color-accent); }
    }

    &:hover { border-color: var(--color-accent); }
  }
}

.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: var(--space-2);
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 3px 0;
  transition: color var(--transition-fast);

  svg { opacity: 0.5; flex-shrink: 0; }

  &:hover { color: var(--color-accent); svg { opacity: 1; } }
}

.chip-group {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  margin-top: var(--space-2);
}

.sidebar-empty {
  font-size: 12px;
  color: var(--text-muted);
  margin: var(--space-2) 0 0;
  font-style: italic;
}

.sidebar-select {
  width: 100%;
  padding: 6px var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--bg-overlay);
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
  font-size: 12px;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;

  &:focus { outline: none; border-color: var(--color-accent); }
}

// ── Grid header ───────────────────────────────────────────────────────────────
.grid-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
  padding: var(--space-3) 0 var(--space-2);
  border-bottom: 1px solid var(--border-subtle);
}

.grid-header__title {
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0;
}

.grid-header__count {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}