/* ── Modals (shared) ── */
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);
  backdrop-filter:blur(4px);z-index:200;display:flex;
  align-items:center;justify-content:center;padding:20px;opacity:0;
  pointer-events:none;transition:opacity .22s ease}
.overlay.open{opacity:1;pointer-events:all}
.modal-box{background:var(--modal-bg);border:1px solid var(--border);
  border-radius:14px;max-height:90vh;overflow-y:auto;width:100%;
  transform:translateY(12px);transition:transform .22s ease;
  box-shadow:0 24px 64px var(--shadow);position:relative}
.overlay.open .modal-box{transform:none}

/* ── Shared buttons ── */
.btn-secondary{padding:8px 18px;border-radius:8px;background:var(--btn-secondary-bg);
  border:1px solid var(--btn-secondary-border);color:var(--text);font-size:.85rem;
  transition:background var(--transition)}
.btn-secondary:hover{background:var(--surface-raised)}
.btn-primary{padding:8px 20px;border-radius:8px;border:none;
  background:var(--btn-primary-bg);color:var(--btn-primary-text);
  font-size:.85rem;font-weight:600;transition:opacity var(--transition)}
.btn-primary:hover{opacity:.75}
.btn-primary:disabled{opacity:.45;cursor:not-allowed}

/* ── Book detail modal ── */
.book-modal-box{max-width:600px}
.bm-inner{display:flex;gap:24px;padding:28px;align-items:flex-start}
@media(max-width:520px){.bm-inner{flex-direction:column}.bm-cover{align-self:center}}
.bm-cover{flex-shrink:0;width:140px;border-radius:8px;overflow:hidden;
  box-shadow:0 6px 24px rgba(0,0,0,.5)}
.bm-cover img,.bm-cover .bm-cover-ph{width:140px;height:210px;object-fit:cover;display:block}
.bm-cover-ph{background:var(--cover-ph);
  display:flex;align-items:center;justify-content:center;
  font-size:2.5rem;font-weight:700;color:var(--cover-ph-text)}
.bm-meta{flex:1;min-width:0}
.bm-title{font-size:1.2rem;font-weight:700;line-height:1.3;margin-bottom:6px}
.bm-author{color:var(--series-color);font-size:.9rem;margin-bottom:14px}
.meta-row{display:flex;gap:8px;font-size:.82rem;margin-bottom:6px;align-items:baseline}
.meta-label{color:var(--muted);flex-shrink:0;width:90px}
.meta-value{color:var(--text)}
.bm-formats{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.btn-dl{display:inline-flex;align-items:center;gap:7px;
  padding:9px 18px;border-radius:8px;font-size:.85rem;font-weight:600;
  border:none;color:var(--btn-primary-text);background:var(--btn-primary-bg);
  transition:opacity var(--transition),transform var(--transition)}
.btn-dl:hover{opacity:.75;transform:translateY(-1px)}
.btn-dl:disabled{opacity:.45;transform:none;cursor:wait}
.btn-read{text-decoration:none;cursor:pointer}
.btn-read:hover{opacity:.75;transform:translateY(-1px)}
.bm-close{position:absolute;top:14px;right:14px;background:none;border:none;
  color:var(--muted);font-size:1.4rem;line-height:1;padding:4px;
  transition:color var(--transition)}
.bm-close:hover{color:var(--text)}
.bm-source-tag{display:inline-block;background:var(--tag-bg);
  border:1px solid var(--tag-border);border-radius:100px;
  padding:2px 10px;font-size:.72rem;color:var(--muted);margin-bottom:8px}

/* ── Download progress bar ── */
.dl-prog-wrap{position:relative;display:inline-flex;align-items:center;
  min-width:170px;height:1.15em;background:rgba(0,0,0,.18);
  border-radius:4px;overflow:hidden}
.dl-prog-bar{position:absolute;left:0;top:0;height:100%;
  background:rgba(255,255,255,.32);border-radius:4px;
  transition:width .12s linear}
.dl-prog-label{position:relative;z-index:1;font-size:.8rem;
  white-space:nowrap;padding:0 8px;letter-spacing:.01em}

/* ── Add-source dialog ── */
.dlg-box{max-width:500px;padding:28px}
.dlg-title{font-size:1.05rem;font-weight:700;margin-bottom:18px;
  display:flex;align-items:center;gap:8px}
.dlg-label{font-size:.82rem;color:var(--muted);margin-bottom:7px;display:block}
.dlg-input{width:100%;padding:10px 14px;
  background:var(--input-bg);border:1px solid var(--border);
  border-radius:8px;color:var(--text);font-size:.9rem;outline:none;
  transition:border-color var(--transition)}
.dlg-input:focus{border-color:var(--border-strong)}
.dlg-input::placeholder{color:var(--muted)}
.dlg-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px;flex-wrap:wrap}
.preview-box{margin-top:16px;padding:14px;background:var(--tag-bg);
  border:1px solid var(--border);border-radius:8px;display:none}
.preview-box.show{display:block}
.preview-name{font-weight:600;font-size:.95rem;margin-bottom:4px}
.preview-count{font-size:.8rem;color:var(--muted)}
.linked-list{margin-top:12px;display:flex;flex-direction:column;gap:8px}
.linked-item{display:flex;align-items:center;gap:10px;font-size:.82rem}
.linked-item input[type=checkbox]{width:15px;height:15px;accent-color:var(--btn-primary-bg);flex-shrink:0}
.linked-name{font-weight:600}
.linked-url{color:var(--muted);font-size:.74rem;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:260px}
.linked-already{font-size:.72rem;color:#81c784;margin-left:auto;flex-shrink:0}
.error-msg{color:var(--status-error-text);font-size:.82rem;margin-top:10px;display:none}
.error-msg.show{display:block}

/* ── Key / password dialog ── */
.key-dlg-desc{font-size:.88rem;color:var(--text);margin-bottom:14px;line-height:1.5}

/* ── Hints inside dialogs ── */
.hint{font-size:.77rem;color:var(--muted);margin-top:6px}
.hint code{background:var(--tag-bg);border:1px solid var(--border);
  border-radius:4px;padding:1px 5px;font-size:.76rem;color:var(--text)}
.hint-tip{margin-top:8px;padding:8px 10px;
  background:var(--status-info-bg);border:1px solid var(--status-info-border);
  border-radius:8px;color:var(--status-info-text)}
.hint-fill-btn{color:var(--status-info-text);font-weight:700;
  text-decoration:underline;text-underline-offset:2px}
.hint-fill-btn:hover{opacity:.8}

/* ── Spinner ── */
.spinner{display:inline-block;width:16px;height:16px;
  border:2px solid rgba(128,128,128,.35);border-top-color:currentColor;
  border-radius:50%;animation:spin .6s linear infinite;vertical-align:middle}
@keyframes spin{to{transform:rotate(360deg)}}