/* EduFabTech — books.css (Faz 17A, 22 Eki 2026). Önek bk-. 390 px'te tek sütun. */
.bk-hero { padding: 28px 0 18px; }
.bk-hero .lead { max-width: 70ch; }
.bk-search { display: flex; gap: 8px; max-width: 640px; margin-top: 14px; }
.bk-search .input { flex: 1 1 auto; min-width: 0; }
.bk-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
.bk-card { display: flex; flex-direction: column; gap: 8px; text-decoration: none; color: inherit; border: 1px solid var(--border); border-radius: 12px; padding: 10px; background: var(--card); transition: transform .15s ease, box-shadow .15s ease; }
.bk-card:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(0,0,0,.35); }
.bk-cover { display: block; aspect-ratio: 2 / 3; overflow: hidden; border-radius: 8px; background: var(--bg-2); }
.bk-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.bk-meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.bk-title { font-weight: 600; line-height: 1.25; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.bk-by { font-size: 13px; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.bk-sub, .bk-counts, .bk-line { font-size: 12px; }
.bk-line { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.bk-stars { color: #d97706; letter-spacing: 1px; white-space: nowrap; }
.bk-has-review { color: var(--muted); }
.bk-page { padding-top: 18px; }
.bk-narrow { max-width: 760px; }
.bk-two { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 28px; align-items: start; margin-top: 12px; }
.bk-side { position: sticky; top: calc(var(--nav-h, 64px) + 12px); }
.bk-big-cover { width: 100%; height: auto; aspect-ratio: 2 / 3; object-fit: cover; border-radius: 12px; background: var(--bg-2); box-shadow: 0 10px 30px rgba(0,0,0,.45); }
.bk-facts { margin: 14px 0 0; font-size: 13.5px; display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; }
.bk-facts dt { color: var(--muted); }
.bk-facts dd { margin: 0; overflow-wrap: anywhere; }
.bk-byline { font-size: 16px; margin: 4px 0 10px; }
.bk-stats { display: flex; flex-wrap: wrap; gap: 6px; font-size: 14px; margin: 0 0 14px; }
.bk-shelf-box { margin: 0 0 18px; }
.bk-shelf-box summary { cursor: pointer; }
.bk-form { display: flex; flex-direction: column; gap: 12px; margin-top: 10px; }
.bk-form label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; }
.bk-field { border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; display: flex; flex-wrap: wrap; gap: 8px; }
.bk-field legend { font-size: 13px; color: var(--muted); padding: 0 4px; }
.bk-field .chip-check { flex-direction: row; align-items: center; gap: 6px; }
.bk-read-only, .bk-own-only { display: flex; flex-direction: column; gap: 10px; }
.bk-own-only { flex-basis: 100%; }
.bk-desc h2, #copies h2, #reviews h2 { margin-top: 18px; }
.bk-subjects { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 18px; }
.bk-review { margin-bottom: 12px; }
.bk-review-head { display: flex; justify-content: space-between; gap: 10px; align-items: center; margin-bottom: 6px; }
.bk-review-book { display: inline-flex; gap: 8px; align-items: center; text-decoration: none; color: inherit; min-width: 0; }
.bk-review-book img { border-radius: 4px; object-fit: cover; flex: 0 0 auto; }
.bk-review-meta { margin: 0 0 6px; font-size: 13.5px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.bk-join { font-size: 14px; }
.bk-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 18px; }
.bk-tabs .chip.on { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
.bk-tabs .chip.on .muted { color: var(--brand-ink); opacity: .75; }
.bk-about h2 { margin-top: 0; }
.bk-isbn-form { display: flex; flex-direction: column; gap: 10px; }
.bk-isbn-form label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; }
.bk-scan { margin-top: 8px; }
.bk-scan video { width: 100%; max-width: 420px; border-radius: 10px; background: #000; aspect-ratio: 4 / 3; }
@media (max-width: 760px) {
  .bk-two { grid-template-columns: 1fr; gap: 16px; }
  .bk-side { position: static; display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 14px; align-items: start; }
  .bk-big-cover { width: 120px; }
  .bk-facts { margin: 0; }
  .bk-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .bk-search { flex-direction: column; }
}