:root {
  --bg: #f3f4f7;
  --card: #ffffff;
  --text: #1b1f2a;
  --muted: #5f6b7e;
  --line: #e2e6ee;
  --accent: #3b5bdb;
  --accent-hover: #2f4ac4;
  --accent-soft: #eef1ff;
  --on-accent: #ffffff;
  --word: #2b579a;
  --excel: #1d7a46;
  --danger: #b42318;
  --ok: #1d7a46;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 16px 40px rgba(16, 24, 40, .08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1117;
    --card: #171b24;
    --text: #e8ebf2;
    --muted: #9aa5b8;
    --line: #2a3140;
    --accent: #5470e8;
    --accent-hover: #7088f0;
    --accent-soft: #1b2440;
    --word: #7aa8f5;
    --excel: #52c68e;
    --danger: #ff8a7d;
    --ok: #52c68e;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 16px 40px rgba(0, 0, 0, .35);
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  padding: 28px 16px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.page { width: 100%; max-width: 800px; display: flex; flex-direction: column; gap: 16px; }
.ad[hidden] { display: none; }
.ad iframe { display: block; width: 100%; border: 0; border-radius: 12px; background: transparent; color-scheme: normal; }

.card {
  width: 100%;
  padding: 30px;
  background: var(--card);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

h1 { margin: 0 0 6px; font-size: 28px; line-height: 1.2; letter-spacing: -.01em; }
h2 { margin: 0 0 6px; font-size: 22px; line-height: 1.25; }
.lead { margin: 0 0 22px; color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 14px; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* ---------- Окна (по одному на каждый PDF) ---------- */
.packs { display: flex; flex-direction: column; gap: 14px; }

.pack {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
  transition: border-color .15s, box-shadow .15s;
}
.pack.active { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.pack.over { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent); }

.pack-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.pack-badge {
  flex: none;
  padding: 3px 11px;
  border-radius: 99px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
}
.pack-name {
  flex: 1;
  min-width: 0;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 15px;
}
.pack-name::placeholder { color: var(--muted); }

.drop {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border: 2px dashed var(--line);
  border-radius: 14px;
  background: var(--accent-soft);
}
.drop-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.drop-text strong { font-size: 16px; }
.drop-text span { color: var(--muted); font-size: 14px; }
.pack.has-files .drop { padding: 10px 14px; }
.pack.has-files .drop-text span { display: none; }

.pack-foot { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 10px; font-size: 14px; }
.pack-tools { display: flex; gap: 16px; }

.pack .check { margin-top: 14px; }
.pw-box { margin: 10px 0 0 32px; }
.pw-box .pack-name { width: 100%; }
.err { display: block; margin-top: 4px; color: var(--danger); font-size: 13px; font-style: normal; }
.err:empty { display: none; }

/* Кнопка «+» — добавить окно */
.add-pack {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  margin-top: 14px;
  padding: 14px 18px;
  border: 2px dashed var(--line);
  border-radius: 16px;
  background: transparent;
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color .15s, background-color .15s;
}
.add-pack:hover:not(:disabled) { border-color: var(--accent); background: var(--accent-soft); }
.add-pack:disabled { opacity: .5; cursor: default; }
.add-pack-text { display: flex; flex-direction: column; min-width: 0; }
.add-pack-text strong { font-size: 17px; }
.add-pack-text span { color: var(--muted); font-size: 14px; }

.plus {
  flex: none;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: var(--on-accent);
  transition: transform .12s;
}
.add-pack:hover:not(:disabled) .plus { transform: scale(1.06); }
.plus svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 2.6; stroke-linecap: round; }

.notice {
  margin: 14px 0 0;
  padding: 10px 14px;
  border-radius: 10px;
  background: #fff4e5;
  color: #7a4100;
  font-size: 14px;
}
@media (prefers-color-scheme: dark) {
  .notice { background: #3a2a10; color: #ffd8a1; }
}

/* ---------- Общий счётчик ---------- */
.totals { margin: 18px 0 8px; }
.totals-row { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.meter { height: 6px; margin: 8px 0; border-radius: 99px; background: var(--line); overflow: hidden; }
.meter-fill { height: 100%; width: 0; border-radius: 99px; background: var(--accent); transition: width .2s; }
.meter-fill.full { background: var(--danger); }

.link {
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}
.link:hover { text-decoration: underline; }

/* ---------- Список документов в окне ---------- */
.list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 300px;
  margin: 12px 0 0;
  padding: 2px;
  list-style: none;
  overflow-y: auto;
}
.list:empty { display: none; }
.row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
}
.row.dragging { opacity: .4; }
.row.drop-target { box-shadow: 0 -3px 0 0 var(--accent); }
.grip { flex: none; color: var(--muted); cursor: grab; user-select: none; letter-spacing: -2px; }
.num { flex: none; min-width: 22px; color: var(--muted); font-size: 14px; text-align: right; }
.ico {
  flex: none;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}
.ico.word { background: var(--word); }
.ico.excel { background: var(--excel); }
.ico.ppt { background: #c2461f; }
.ico.image { background: #7b4bb8; }
@media (prefers-color-scheme: dark) { .ico.ppt { background: #ff9a76; } .ico.image { background: #c4a1f0; } }
@media (prefers-color-scheme: dark) { .ico { color: #0e1117; } }
.name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.size { flex: none; color: var(--muted); font-size: 13px; }
.tools { flex: none; display: flex; gap: 4px; }
.tool {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-size: 16px;
  cursor: pointer;
}
.tool:hover:not(:disabled) { background: var(--accent-soft); color: var(--text); }
.tool:disabled { opacity: .3; cursor: default; }

/* ---------- Параметры ---------- */
.check { display: flex; gap: 12px; align-items: flex-start; cursor: pointer; }
.check input { flex: none; width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--accent); cursor: pointer; }
.check b { display: block; }
.check small { display: block; color: var(--muted); font-size: 13.5px; line-height: 1.4; }
.more { margin: 18px 0; }
.more summary { color: var(--muted); font-size: 14px; cursor: pointer; }
.more[open] summary { margin-bottom: 10px; }

/* ---------- Кнопки ---------- */
.btn {
  display: block;
  width: 100%;
  padding: 14px 18px;
  border: 0;
  border-radius: 12px;
  font: inherit;
  font-size: 17px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .15s, opacity .15s;
}
.btn.primary { background: var(--accent); color: var(--on-accent); }
.btn.primary:hover:not(:disabled):not([aria-disabled="true"]) { background: var(--accent-hover); }
.btn.ghost { margin-top: 10px; background: transparent; color: var(--muted); font-weight: 500; }
.btn.ghost:hover { color: var(--text); }
.btn.small {
  display: inline-block;
  width: auto;
  flex: none;
  padding: 9px 16px;
  border: 1px solid var(--accent);
  background: var(--card);
  color: var(--accent);
  font-size: 15px;
}
.btn.small:hover { background: var(--accent); color: var(--on-accent); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .45; cursor: default; pointer-events: none; }

/* ---------- Ход работы и результат ---------- */
.results { display: flex; flex-direction: column; gap: 10px; margin: 18px 0 20px; padding: 0; list-style: none; }
.res {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 4px 14px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
}
.res.done { border-color: color-mix(in srgb, var(--ok) 50%, var(--line)); }
.res.bad { border-color: color-mix(in srgb, var(--danger) 50%, var(--line)); }
.res-title { font-weight: 600; overflow-wrap: anywhere; }
.res-meta { color: var(--muted); font-size: 14px; font-weight: 400; }
.res-status { grid-column: 1; color: var(--muted); font-size: 14px; overflow-wrap: anywhere; }
.res.done .res-status { color: var(--ok); }
.res.bad .res-status { color: var(--danger); }
.res-actions { grid-column: 2; grid-row: 1 / span 2; display: flex; gap: 8px; align-items: center; }
.res .bar { grid-column: 1 / -1; margin-top: 6px; }
.res .btn.small { padding: 8px 14px; font-size: 15px; }

.bar { height: 8px; border-radius: 99px; background: var(--line); overflow: hidden; }
.bar-fill { height: 100%; width: 0; border-radius: 99px; background: var(--accent); transition: width .35s ease; }
.bar.busy .bar-fill { width: 38%; animation: slide 1.3s ease-in-out infinite; }
@keyframes slide { 0% { margin-left: -38%; } 100% { margin-left: 100%; } }

.work-actions { display: flex; flex-direction: column; }
#work-note { margin: 14px 0 0; }

.foot { margin-top: 26px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }

@media (max-width: 560px) {
  body { padding: 16px; }
  .card { padding: 20px 16px; border-radius: 16px; }
  h1 { font-size: 23px; }
  .pack { padding: 12px; }
  .drop { flex-direction: column; align-items: stretch; text-align: center; gap: 12px; }
  .pack.has-files .drop { flex-direction: row; align-items: center; text-align: left; padding: 8px 10px; gap: 8px; }
  .pack.has-files .drop-text strong { font-size: 14px; }
  .pack.has-files .btn.small { padding: 7px 10px; font-size: 14px; white-space: nowrap; }
  .pack-name { font-size: 14px; padding: 8px 10px; }
  .tools { gap: 0; }
  .size, .grip { display: none; }
  .tool { width: 34px; height: 34px; }
  .res { grid-template-columns: 1fr; }
  .res-actions { grid-column: 1; grid-row: auto; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ---------- Текстовые блоки для поисковиков и людей ---------- */
.seo h2 { margin: 26px 0 8px; font-size: 20px; }
.seo h2:first-child, .seo h1 + h2 { margin-top: 0; }
.seo h3 { margin: 16px 0 4px; font-size: 16px; }
.seo p { margin: 6px 0; color: var(--text); }
.seo ul { margin: 6px 0; padding-left: 22px; }
.seo li { margin: 4px 0; }
.seo a { color: var(--accent); }
.seo .links { columns: 2; column-gap: 24px; }
.foot a { color: inherit; margin-left: 6px; }

/* ---------- Согласие на cookie ---------- */
.cookie {
  position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 10;
  max-width: 760px; margin: 0 auto; padding: 14px 18px;
  display: flex; gap: 16px; align-items: center; justify-content: space-between;
  background: var(--card); color: var(--text); border: 1px solid var(--line);
  border-radius: 14px; box-shadow: var(--shadow); font-size: 14px;
}
.cookie p { margin: 0; }
.cookie a { color: var(--accent); }
.cookie-btns { display: flex; gap: 14px; align-items: center; flex: none; }
@media (max-width: 560px) {
  .cookie { flex-direction: column; align-items: stretch; }
  .cookie-btns { justify-content: space-between; }
  .seo .links { columns: 1; }
}

/* ---------- Логотип ---------- */
.brand { display: inline-block; margin: 0 0 18px; line-height: 0; }
.brand img { display: block; height: 36px; width: auto; }
@media (max-width: 560px) { .brand img { height: 30px; } }