/* Split PDF. Needs /assets/css/modern-tool-cards.css (tokens) and pdf-category.css (--accent). */
.sp, .sp *, .sp *::before, .sp *::after { box-sizing: border-box; }
.sp { display: grid; gap: 1.1rem; }
.sp [hidden] { display: none !important; }

.sp-panel { background: var(--tc-bg); border: 1px solid var(--tc-border); border-radius: 20px; box-shadow: var(--tc-shadow); overflow: hidden; }
.sp-head { display: flex; align-items: center; gap: .6rem; padding: .85rem 1.25rem; background: var(--tc-surface); border-bottom: 1px solid var(--tc-border); }
.sp-head > i { color: var(--accent); font-size: 1.1rem; }
.sp-head h3 { margin: 0; font-size: .8rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--tc-muted); }
.sp-stat { margin-left: auto; font-size: .78rem; font-weight: 600; color: var(--tc-muted); }
.sp-body { padding: 1.1rem; display: grid; gap: 1rem; }

.sp-drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .4rem;
  padding: 2.2rem 1rem; text-align: center; cursor: pointer;
  border: 2px dashed var(--tc-border); border-radius: 16px; background: var(--tc-surface);
}
.sp-drop:hover, .sp-drop:focus-visible { border-color: var(--accent); }
.sp-drop:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sp-drop--over { border-color: var(--accent); background: rgba(var(--accent-rgb), .06); }
.sp-drop > i { font-size: 1.8rem; color: var(--accent); }
.sp-drop p { margin: 0; font-size: .92rem; color: var(--tc-muted); }
.sp-browse-link { color: var(--accent); font-weight: 700; text-decoration: underline; }

.sp-loaded__file {
  display: flex; align-items: center; gap: .7rem;
  padding: .65rem .8rem; background: var(--tc-bg); border: 1px solid var(--tc-border); border-radius: 12px;
}
.sp-loaded__file > i:first-child { color: var(--accent); font-size: 1.3rem; flex: none; }
.sp-loaded__body { display: flex; flex-direction: column; min-width: 0; flex: 1 1 auto; }
.sp-loaded__name { font-weight: 600; color: var(--tc-text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sp-loaded__meta { font-size: .78rem; color: var(--tc-muted); }

.sp-row__btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem; font-size: .95rem; flex: none;
  color: var(--tc-muted); background: transparent; border: 1px solid var(--tc-border); border-radius: 8px; cursor: pointer;
}
.sp-row__btn:hover { color: #dc2626; border-color: #dc2626; }

.sp-mode-group { display: inline-flex; gap: .25rem; padding: .25rem; background: var(--tc-surface); border: 1px solid var(--tc-border); border-radius: 14px; width: fit-content; }
.sp-mode-group .mode-btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 2.2rem; padding: 0 1.1rem; font: inherit; font-size: .85rem; font-weight: 600;
  color: var(--tc-muted); background: transparent; border: 0; border-radius: 10px; cursor: pointer;
}
.sp-mode-group .mode-btn:hover { color: var(--tc-text); }
.sp-mode-group .mode-btn.active { color: #fff; background: var(--accent); }

.sp-range { display: grid; gap: .4rem; }
.sp-range label { font-size: .8rem; font-weight: 600; color: var(--tc-muted); }
.sp-range input {
  height: 2.6rem; padding: 0 .9rem; font: inherit; font-size: .95rem;
  color: var(--tc-text); background: var(--tc-bg); border: 1px solid var(--tc-border); border-radius: 12px; max-width: 24rem;
}
.sp-range input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.sp-range__hint { margin: 0; font-size: .8rem; color: var(--tc-muted); min-height: 1.1rem; }
.sp-range__hint--error { color: #dc2626; }

.sp-pick { display: grid; gap: .8rem; }
.sp-pick__toolbar { display: flex; align-items: center; justify-content: space-between; gap: .8rem; flex-wrap: wrap; }
.sp-pick__count { font-size: .82rem; font-weight: 600; color: var(--tc-muted); }
.sp-pick__toolbar-actions { display: flex; gap: 1rem; }
.sp-pick__linkbtn {
  font: inherit; font-size: .82rem; font-weight: 700; color: var(--accent);
  background: none; border: 0; padding: 0; cursor: pointer; text-decoration: underline;
}
.sp-pick__linkbtn:hover { filter: brightness(1.1); }

.sp-pick__grid {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(9.5rem, 1fr));
}

.sp-pick__card {
  display: flex; flex-direction: column; gap: .5rem;
  background: var(--tc-bg); border: 2px solid var(--tc-border); border-radius: 14px;
  padding: .6rem; cursor: pointer; position: relative;
}
.sp-pick__card:hover { border-color: var(--accent); }
.sp-pick__card--selected { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(var(--accent-rgb), .18) inset; }

.sp-pick__checkbox {
  position: absolute; top: .5rem; left: .5rem; z-index: 1;
  width: 1.1rem; height: 1.1rem; accent-color: var(--accent); cursor: pointer;
}

.sp-pick__thumb-wrap {
  position: relative; display: flex; align-items: center; justify-content: center;
  height: 9.5rem; background: var(--tc-surface); border: 1px solid var(--tc-border); border-radius: 10px; overflow: hidden;
}
.sp-pick__canvas { max-width: 100%; max-height: 100%; display: block; box-shadow: 0 1px 4px rgba(0,0,0,.12); }

.sp-pick__num { text-align: center; font-size: .78rem; font-weight: 600; color: var(--tc-muted); }

.sp-actions { display: flex; gap: .6rem; }
.sp-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  height: 2.4rem; padding: 0 1.2rem; font: inherit; font-size: .85rem; font-weight: 700;
  color: var(--tc-text); background: var(--tc-bg); border: 1px solid var(--tc-border); border-radius: 12px; cursor: pointer;
}
.sp-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.sp-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sp-btn:disabled { opacity: .5; cursor: not-allowed; }
.sp-btn--primary { color: #fff; background: var(--accent); border-color: var(--accent); }
.sp-btn--primary:hover:not(:disabled) { color: #fff; filter: brightness(1.08); }
.sp-btn--ghost { background: transparent; }
.sp-status { min-height: 1.2rem; margin: 0; font-size: .85rem; font-weight: 600; color: var(--accent); }
.sp-status--error { color: #dc2626; }

.sp-foot { margin: 0; display: flex; gap: .5rem; font-size: .84rem; color: var(--tc-muted); }
.sp-foot i { color: var(--accent); margin-top: .15rem; }