.pdf-merge-shell { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: clamp(24px, 4vw, 56px); align-items: start; padding-block: clamp(32px, 6vw, 72px); }
.pdf-merge-card, .pdf-merge-side { border: 1px solid rgba(20, 20, 20, .14); background: #fff; padding: clamp(20px, 3.4vw, 40px); }
.pdf-merge-side { position: sticky; top: 96px; background: #f2f4e9; }
.pdf-merge-side > ol { margin: 24px 0; padding-left: 22px; display: grid; gap: 18px; }
.pdf-merge-side li::marker { color: #527a22; font-weight: 800; }
.pdf-merge-side p { margin: 0; }
.pdf-merge-dropzone { display: grid; place-items: center; min-height: 220px; margin-top: 24px; padding: 28px 20px; border: 2px dashed #829868; background: #f8f8f3; cursor: pointer; text-align: center; transition: border-color .2s ease, background-color .2s ease; }
.pdf-merge-dropzone:hover, .pdf-merge-dropzone[data-dragging="true"] { border-color: #527a22; background: #edf4df; }
.pdf-merge-dropzone:focus-within { outline: 3px solid rgba(82, 122, 34, .35); outline-offset: 3px; }
.pdf-merge-dropzone-copy { display: grid; justify-items: center; gap: 7px; }
.pdf-merge-file-icon { display: grid; place-items: center; width: 58px; height: 58px; background: #171b16; color: #fff; font-size: 14px; font-weight: 900; letter-spacing: .06em; }
.pdf-merge-dropzone strong { font-size: 1.14rem; }
.pdf-merge-dropzone small { color: #5b6256; }
.pdf-merge-dropzone input { position: absolute; inline-size: 1px; block-size: 1px; opacity: .001; overflow: hidden; }
.pdf-merge-summary { margin: 16px 0 10px; font-weight: 750; color: #26331e; }
.pdf-merge-list { max-height: 520px; overflow-y: auto; margin: 0; padding: 0; border-top: 1px solid #d8dbd1; list-style: none; }
.pdf-merge-list li { display: grid; grid-template-columns: 42px minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid #d8dbd1; }
.pdf-merge-page-number { display: grid; place-items: center; width: 34px; height: 34px; background: #171b16; color: #fff; font-weight: 850; }
.pdf-merge-page-copy { min-width: 0; display: grid; gap: 3px; }
.pdf-merge-page-copy strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pdf-merge-page-copy small { color: #62675f; }
.pdf-merge-page-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
.pdf-merge-page-actions button, .pdf-merge-reset { min-height: 44px; border: 1px solid #8d9288; background: #fff; color: #171b16; padding: 8px 12px; font-weight: 750; cursor: pointer; }
.pdf-merge-page-actions button:last-child { border-color: #b96255; color: #8c3327; }
.pdf-merge-page-actions button:disabled { opacity: .36; cursor: not-allowed; }
.pdf-merge-caution { margin-top: 22px; padding: 18px; border-left: 4px solid #bb674d; background: #fbf1ed; }
.pdf-merge-caution h3 { margin: 0 0 8px; font-size: 1rem; }
.pdf-merge-caution p { margin: 0; color: #573f37; }
.pdf-merge-actions { display: flex; gap: 10px; margin-top: 22px; }
.pdf-merge-action, .pdf-merge-download { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; border: 1px solid #171b16; background: #94c83d; color: #171b16; padding: 12px 20px; font-weight: 850; text-decoration: none; cursor: pointer; }
.pdf-merge-action:disabled { opacity: .45; cursor: not-allowed; }
.pdf-merge-status { min-height: 26px; margin: 14px 0 0; font-weight: 700; }
.pdf-merge-status[data-state="error"], .pdf-merge-warning { color: #9d3025; }
.pdf-merge-status[data-state="success"] { color: #376716; }
.pdf-merge-result { margin-top: 18px; padding: 20px; border: 1px solid #7b9860; background: #f3f8e9; }
.pdf-merge-result h3 { margin: 0 0 8px; }
.pdf-merge-result p { margin: 6px 0; }
.pdf-merge-download { margin-top: 10px; }
.pdf-merge-privacy { margin-top: 24px; padding: 18px; background: #171b16; color: #fff; }
.pdf-merge-privacy h3 { margin: 0 0 8px; color: #b7dd72; }
.pdf-merge-source-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.pdf-merge-source-grid a { overflow-wrap: anywhere; }
.pdf-merge-faq-list { display: grid; gap: 10px; }
.pdf-merge-card button:focus-visible, .pdf-merge-card a:focus-visible, .pdf-merge-dropzone:focus-visible { outline: 3px solid #376716; outline-offset: 3px; }
@media (max-width: 720px) {
  .pdf-merge-shell { grid-template-columns: 1fr; padding-block: 28px 48px; }
  .pdf-merge-side { position: static; }
  .pdf-merge-card, .pdf-merge-side { padding: 20px 16px; }
  .pdf-merge-dropzone { min-height: 190px; }
  .pdf-merge-list li { grid-template-columns: 36px minmax(0, 1fr); }
  .pdf-merge-page-actions { grid-column: 1 / -1; justify-content: stretch; }
  .pdf-merge-page-actions button { flex: 1 1 76px; }
  .pdf-merge-actions { flex-direction: column; }
  .pdf-merge-action, .pdf-merge-reset { width: 100%; }
  .pdf-merge-source-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .pdf-merge-dropzone { transition: none; }
}