.pdf-body { background: var(--paper); }
.nav a.is-current { color: var(--ink); }

.pdf-main { max-width: 860px; margin: 0 auto; padding: 56px 32px 120px; }

.pdf-hero { text-align: center; margin-bottom: 40px; }
.pdf-hero__title {
  font-family: var(--font-display); font-weight: 600; font-size: clamp(2.2rem, 4vw, 3rem);
  margin: 0 0 14px; letter-spacing: -0.01em;
}
.pdf-hero__sub { color: var(--slate); max-width: 52ch; margin: 0 auto; font-size: 1.02rem; }

/* ---------------- Tabs ---------------- */
.pdf-tabs {
  display: flex; gap: 4px; background: var(--paper-line); border-radius: 24px;
  padding: 4px; max-width: 460px; margin: 0 auto 36px;
}
.pdf-tab {
  flex: 1; border: none; background: none; padding: 10px 14px; border-radius: 20px;
  cursor: pointer; font-size: 0.74rem; letter-spacing: 0.06em; color: var(--slate);
  transition: background 0.2s ease, color 0.2s ease;
}
.pdf-tab.is-active { background: var(--ink); color: var(--paper); }
.pdf-tab:hover:not(.is-active) { color: var(--ink); }

.pdf-panel { display: none; }
.pdf-panel.is-active { display: block; animation: fadeIn 0.25s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* ---------------- Dropzone ---------------- */
.dropzone {
  border: 1.5px dashed var(--paper-line); border-radius: 6px; background: var(--paper-raised);
  padding: 44px 24px; text-align: center; cursor: pointer; transition: border-color 0.2s ease, background 0.2s ease;
}
.dropzone:hover, .dropzone:focus-visible, .dropzone.is-dragover {
  border-color: var(--brass); background: rgba(184, 144, 47, 0.06); outline: none;
}
.dropzone__title { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; margin: 0 0 6px; }
.dropzone__hint { color: var(--slate-light); font-size: 0.72rem; margin: 0; }

/* ---------------- Merge: file list ---------------- */
.file-list { list-style: none; margin: 22px 0 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.file-row {
  display: flex; align-items: center; gap: 10px; background: var(--paper-raised);
  border: 1px solid var(--paper-line); border-radius: 5px; padding: 10px 12px;
}
.file-row__icon {
  width: 30px; height: 34px; flex: 0 0 auto; background: var(--ink); color: var(--paper);
  border-radius: 2px; display: grid; place-items: center; font-family: var(--font-mono); font-size: 0.55rem;
}
.file-row__info { flex: 1; min-width: 0; }
.file-row__name { font-size: 0.88rem; font-weight: 500; margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-row__meta { font-size: 0.7rem; color: var(--slate-light); margin: 2px 0 0; font-family: var(--font-mono); }
.file-row__actions { display: flex; gap: 2px; flex: 0 0 auto; }
.file-row__actions button {
  border: none; background: none; cursor: pointer; color: var(--slate); font-size: 0.95rem;
  width: 26px; height: 26px; border-radius: 4px; display: grid; place-items: center;
}
.file-row__actions button:hover { background: var(--paper-line); color: var(--ink); }
.file-row__actions button:disabled { opacity: 0.3; cursor: not-allowed; }
.file-row__actions button.remove:hover { color: #b33; }

.pdf-actions { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 24px; flex-wrap: wrap; }
.pdf-actions__meta { color: var(--slate-light); font-size: 0.72rem; }

/* ---------------- Split / extract ---------------- */
.split-workspace { margin-top: 28px; }
.split-file-name { font-size: 0.78rem; color: var(--brass); margin: 0 0 20px; }
.split-block {
  background: var(--paper-raised); border: 1px solid var(--paper-line); border-radius: 6px;
  padding: 20px; margin-bottom: 16px;
}
.split-block__row { display: flex; gap: 10px; align-items: center; margin-top: 8px; flex-wrap: wrap; }
.split-block__row .input { flex: 1; min-width: 180px; margin: 0; }
.split-block__hint { color: var(--slate-light); font-size: 0.7rem; margin: 8px 0 0; }
.small-label { font-size: 0.68rem; color: var(--slate-light); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; }

.input {
  width: 100%; padding: 11px 13px; border: 1px solid var(--paper-line); border-radius: 4px;
  font-family: var(--font-body); font-size: 0.9rem; background: #fff; color: var(--ink);
}
.input:focus { outline: none; border-color: var(--brass); }

/* ---------------- Edit pages ---------------- */
.edit-workspace { margin-top: 28px; }
.edit-hint { color: var(--slate-light); font-size: 0.72rem; margin: 0 0 18px; }
.page-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 14px; margin-bottom: 28px; }
.page-card {
  background: var(--paper-raised); border: 1px solid var(--paper-line); border-radius: 5px;
  padding: 8px; text-align: center; position: relative;
}
.page-card.is-removed { opacity: 0.35; }
.page-card__thumb {
  width: 100%; aspect-ratio: 3/4; background: #fff; border: 1px solid var(--paper-line);
  border-radius: 3px; overflow: hidden; display: flex; align-items: center; justify-content: center;
  margin-bottom: 6px;
}
.page-card__thumb canvas, .page-card__thumb img { max-width: 100%; max-height: 100%; transition: transform 0.2s ease; }
.page-card__num { font-family: var(--font-mono); font-size: 0.62rem; color: var(--slate-light); margin: 0 0 6px; }
.page-card__actions { display: flex; justify-content: center; gap: 2px; }
.page-card__actions button {
  border: none; background: none; cursor: pointer; color: var(--slate); font-size: 0.85rem;
  width: 24px; height: 24px; border-radius: 4px;
}
.page-card__actions button:hover { background: var(--paper-line); color: var(--ink); }
.page-card__actions button:disabled { opacity: 0.25; cursor: not-allowed; }
.page-card__actions button.remove:hover { color: #b33; }

.stamp-block {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px; background: var(--paper-raised);
  border: 1px solid var(--paper-line); border-radius: 6px; padding: 18px 20px; margin-bottom: 8px;
}
@media (max-width: 620px) { .stamp-block { grid-template-columns: 1fr; } }
.stamp-block__col { display: flex; flex-direction: column; gap: 8px; }
.modal-checkbox { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--ink); cursor: pointer; }
.modal-checkbox input { width: 15px; height: 15px; accent-color: var(--brass); }

/* ---------------- Toast (shared pattern) ---------------- */
.toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%) translateY(12px);
  background: var(--ink); color: var(--paper); padding: 12px 22px; border-radius: 24px;
  font-size: 0.85rem; opacity: 0; pointer-events: none; transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 900; max-width: 90vw; text-align: center;
}
.toast.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 620px) {
  .pdf-main { padding: 40px 18px 90px; }
  .pdf-actions { flex-direction: column; align-items: stretch; }
}