/* =========================================================
   Tab "Nhập sách" bằng mã vạch (chỉ thủ thư thấy)
   Dùng lại biến màu trong style.css (--orange, --surface, --line...),
   đổi màu ở style.css là mục này đổi theo.
   ========================================================= */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
#tab-intake [hidden] { display: none !important; }

.intake-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 16px; align-items: start; }

/* ---------- Ô quét: điểm nhấn chính ---------- */
.scanbar {
  --state: var(--line);
  display: flex; align-items: stretch;
  background: var(--surface-2); border: 2px solid var(--state); border-radius: var(--radius);
  overflow: hidden; transition: border-color .15s, box-shadow .15s;
}
.scanbar::before {
  /* dải sọc mã vạch, đổi màu theo trạng thái */
  content: ""; flex: none; width: 46px; margin: 12px 0 12px 16px;
  background: repeating-linear-gradient(90deg,
    var(--state) 0 3px, transparent 3px 5px, var(--state) 5px 6px, transparent 6px 9px,
    var(--state) 9px 13px, transparent 13px 15px);
  transition: background .15s;
}
.scanbar[data-state="idle"]      { --state: var(--text-3); }
.scanbar[data-state="searching"] { --state: var(--accent, var(--orange)); }
.scanbar[data-state="found"]     { --state: var(--ok); }
.scanbar[data-state="exists"]    { --state: var(--warn); }
.scanbar[data-state="error"]     { --state: var(--danger); }
.scanbar:focus-within { box-shadow: 0 0 0 4px var(--orange-50); }
.scanbar input {
  flex: 1; min-width: 0; width: auto;
  border: 0; border-radius: 0; background: transparent; box-shadow: none !important;
  padding: 18px 16px; font-size: 24px; font-weight: 700; letter-spacing: .08em;
  font-variant-numeric: tabular-nums; color: var(--text);
}
.scanbar input::placeholder { font-size: 16px; font-weight: 500; letter-spacing: 0; }
.scanbar .btn { border-radius: 0; padding: 0 26px; }

.scan-actions { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 12px; }
.link-btn {
  background: none; border: 0; padding: 0; font: inherit; font-size: 14px; font-weight: 600;
  color: var(--orange); cursor: pointer; text-decoration: underline; text-underline-offset: 3px;
}
.link-btn:hover { color: var(--orange-600); }
.link-btn:disabled { opacity: .5; cursor: wait; }
.camera-box { margin-top: 12px; max-width: 440px; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--line); background: #000; }

.intake-status { min-height: 22px; margin-top: 14px; font-weight: 600; font-size: 14px; color: var(--text-2); }
.intake-status.ok { color: var(--ok); }
.intake-status.warn { color: var(--warn); }
.intake-status.err { color: var(--danger); }

/* ---------- Sách đã có trong thư viện ---------- */
.intake-exists {
  display: flex; gap: 14px; align-items: center; margin-top: 12px;
  padding: 12px 14px; background: var(--warn-bg); border-left: 4px solid var(--warn);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.intake-exists img { width: 46px; height: 66px; object-fit: cover; border-radius: 3px; flex: none; }
.intake-exists strong { color: var(--text); }

/* ---------- Form ---------- */
.intake-form { display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 22px; margin-top: 18px; }
.intake-form.no-cover, .intake-form.is-exists { grid-template-columns: minmax(0, 1fr); }
.intake-form.no-cover .intake-cover, .intake-form.is-exists .intake-cover { display: none; }
.intake-cover {
  width: 130px; aspect-ratio: 2 / 3; border-radius: 4px 8px 8px 4px; overflow: hidden;
  background: var(--surface-2); border: 1px dashed var(--line);
  display: grid; place-items: center; text-align: center; padding: 8px;
  color: var(--text-3); font-size: 12px;
}
.intake-cover.has-img { padding: 0; border-style: solid; box-shadow: var(--shadow); }
.intake-cover img { width: 100%; height: 100%; object-fit: cover; }

.intake-place { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); grid-template-columns: 1fr 1fr 110px; }
.intake-form.is-exists .intake-place { margin-top: 0; padding-top: 0; border-top: 0; grid-template-columns: 160px; }
.intake-form input.invalid { border-color: var(--danger); }

.intake-foot { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 18px; }
.intake-check { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-2); cursor: pointer; }
.intake-check input { width: 18px; height: 18px; padding: 0; accent-color: var(--orange); flex: none; }
.intake-buttons { display: flex; gap: 10px; }

/* ---------- Danh sách vừa nhập ---------- */
.intake-session { position: sticky; top: 90px; }
.intake-session .panel-head { margin-bottom: 6px; }
.intake-list { list-style: none; margin: 12px 0 0; padding: 0; display: flex; flex-direction: column; gap: 8px; max-height: 60vh; overflow-y: auto; }
.intake-list li { padding: 10px 12px; background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius-sm); font-size: 14px; }
.intake-list li strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.intake-list li span { color: var(--text-3); font-size: 13px; }
.intake-list li.new { animation: intakeFlash 1.4s ease-out; }
@keyframes intakeFlash { from { border-color: var(--ok); background: var(--ok-bg); } }

/* ---------- Màn hình nhỏ ---------- */
@media (max-width: 960px) {
  .intake-layout { grid-template-columns: minmax(0, 1fr); }
  .intake-session { position: static; }
}
@media (max-width: 620px) {
  .intake-form { grid-template-columns: minmax(0, 1fr); }
  .intake-cover { width: 100px; }
  .intake-place { grid-template-columns: minmax(0, 1fr); }
  .scanbar input { font-size: 18px; padding: 14px 10px; }
  .scanbar::before { width: 28px; margin-left: 10px; }
  .scanbar .btn { padding: 0 14px; }
  .intake-buttons { width: 100%; }
  .intake-buttons .btn { flex: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .intake-list li.new { animation: none; }
}