/* =========================================================
   四上语文 · 资料库
   简易检索站：纸张底色 + 墨绿/朱砂，信息优先
   ========================================================= */

:root {
  --paper: #f6f1e6;
  --paper-2: #fdfaf3;
  --paper-3: #ece4d3;
  --ink: #1f2f2d;
  --ink-soft: #354643;
  --muted: #6f7b75;
  --faint: #9aa39c;
  --jade: #2e6a5d;
  --jade-deep: #1b453d;
  --jade-soft: #e4eee8;
  --cinnabar: #b24734;
  --cinnabar-soft: #f4e5df;
  --gold: #a97f3f;
  --gold-soft: #f2e8d3;
  --blue: #41567d;
  --blue-soft: #e8ebf3;
  --line: rgba(31, 47, 45, 0.12);
  --line-strong: rgba(31, 47, 45, 0.22);
  --shadow-sm: 0 2px 10px rgba(31, 47, 45, 0.05);
  --shadow-md: 0 18px 40px -26px rgba(27, 69, 61, 0.38);
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Hiragino Sans GB", sans-serif;
  --max: 1180px;
}

*,
*::before,
*::after { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 6% 2%, rgba(169, 127, 63, 0.08), transparent 34%),
    radial-gradient(circle at 94% 10%, rgba(46, 106, 93, 0.06), transparent 36%),
    repeating-linear-gradient(0deg, rgba(31, 47, 45, 0.013) 0 1px, transparent 1px 4px);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.7;
  touch-action: manipulation;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4, p { margin: 0; }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; line-height: 1.35; }
ul, ol { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--cinnabar); outline-offset: 3px; }
[hidden] { display: none !important; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 26px; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 99; padding: 9px 14px; color: var(--paper-2); background: var(--jade-deep); border-radius: 3px; transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 顶栏 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(246, 241, 230, 0.9);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(12px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 26px -22px rgba(31, 47, 45, 0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  height: 66px;
}

.brand { display: inline-flex; align-items: center; gap: 11px; }

.brand-seal {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #fdf8ed;
  background: var(--cinnabar);
  border-radius: 3px;
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1;
  box-shadow: 0 3px 10px -5px rgba(178, 71, 52, 0.8);
}

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-family: var(--serif); font-size: 17px; letter-spacing: 0.06em; }
.brand-text small { margin-top: 3px; color: var(--faint); font-size: 8.5px; letter-spacing: 0.16em; text-transform: uppercase; }

.nav { display: flex; gap: 2px; }

.nav a {
  padding: 7px 12px;
  color: var(--ink-soft);
  border-radius: 3px;
  font-size: 13px;
  transition: color 0.18s ease, background 0.18s ease;
}

.nav a:hover { color: var(--jade-deep); background: rgba(251, 248, 240, 0.8); }
.nav a.is-active { color: var(--cinnabar); background: rgba(178, 71, 52, 0.07); }

.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  color: var(--muted);
  background: rgba(253, 250, 243, 0.8);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
}

.header-search svg { width: 13px; height: 13px; }
.header-search kbd { padding: 1px 5px; color: var(--faint); background: var(--paper-3); border-radius: 2px; font-family: var(--sans); font-size: 9.5px; }

/* ---------- 检索区 ---------- */

.hero { padding: 46px 0 26px; }

.hero-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; }

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--jade);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.hero-kicker::before { width: 22px; height: 1px; content: ""; background: var(--jade); }

.hero h1 { margin-top: 12px; font-size: clamp(1.9rem, 3.4vw, 2.6rem); letter-spacing: -0.01em; }
.hero h1 em { color: var(--cinnabar); font-style: normal; }

.hero p { max-width: 560px; margin-top: 10px; color: var(--muted); font-size: 13px; line-height: 1.8; }

.hero-count { flex: 0 0 auto; text-align: right; }
.hero-count strong { display: block; color: var(--jade-deep); font-family: var(--serif); font-size: 34px; line-height: 1; }
.hero-count span { color: var(--muted); font-size: 10.5px; letter-spacing: 0.06em; }

.search-panel {
  position: relative;
  margin-top: 26px;
  padding: 7px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
}

.search-row { display: flex; align-items: center; gap: 8px; }

.search-icon { display: grid; width: 44px; height: 44px; flex: 0 0 auto; place-items: center; color: var(--jade); }
.search-icon svg { width: 19px; height: 19px; }

#query {
  min-width: 0;
  flex: 1;
  padding: 10px 4px;
  background: transparent;
  border: 0;
  font-size: 16px;
  outline: none;
}

#query::placeholder { color: var(--faint); }

.search-clear {
  display: grid;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  padding: 0;
  place-items: center;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 50%;
}

.search-clear:hover { background: var(--paper-3); }
.search-clear svg { width: 13px; height: 13px; }

.search-submit {
  height: 44px;
  padding: 0 22px;
  color: #fdf9ef;
  background: var(--jade-deep);
  border: 0;
  border-radius: 4px;
  font-size: 13.5px;
  letter-spacing: 0.06em;
  transition: background 0.2s ease;
}

.search-submit:hover { background: var(--jade); }

.search-hints {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 8px 6px 4px;
  color: var(--faint);
  border-top: 1px dashed var(--line);
  font-size: 11px;
}

.search-hints span { margin-right: 2px; }

.hint {
  padding: 3px 9px;
  color: var(--ink-soft);
  background: rgba(236, 228, 211, 0.5);
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 10.5px;
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.hint:hover { color: var(--jade); background: var(--jade-soft); border-color: rgba(46, 106, 93, 0.2); }

/* ---------- 来源卡 ---------- */

.source-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 22px; }

.source-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 18px;
  overflow: hidden;
  text-align: left;
  background: rgba(253, 250, 243, 0.72);
  border: 1px solid var(--line);
  border-radius: 6px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.source-card::after {
  position: absolute;
  right: -10px;
  bottom: -18px;
  color: var(--ink);
  content: attr(data-mark);
  font-family: var(--serif);
  font-size: 62px;
  opacity: 0.05;
  pointer-events: none;
}

.source-card:hover { border-color: var(--line-strong); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.source-card.is-active { border-color: var(--jade); background: var(--jade-soft); }

.source-card .n { color: var(--jade-deep); font-family: var(--serif); font-size: 26px; line-height: 1; }
.source-card .t { font-size: 13px; font-weight: 600; }
.source-card .d { color: var(--muted); font-size: 10.5px; }

/* ---------- 筛选 ---------- */

.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.filter-group { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; min-width: 0; }
.filter-group > span { color: var(--faint); font-size: 10px; letter-spacing: 0.1em; }

.chip {
  padding: 5px 11px;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 11px;
  white-space: nowrap;
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.chip:hover { color: var(--jade); border-color: var(--jade); }
.chip.is-active { color: var(--paper-2); background: var(--jade); border-color: var(--jade); }

.select-wrap { position: relative; display: inline-flex; align-items: center; }
.select-wrap svg { position: absolute; right: 8px; width: 12px; height: 12px; color: var(--faint); pointer-events: none; }

select {
  padding: 6px 26px 6px 10px;
  color: var(--ink-soft);
  background: rgba(253, 250, 243, 0.8);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 11px;
  appearance: none;
  cursor: pointer;
}

.sort-toggle { margin-left: auto; display: flex; gap: 4px; }

/* ---------- 结果 ---------- */

.result-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding: 18px 0 10px;
  color: var(--muted);
  font-size: 11.5px;
}

.result-head strong { color: var(--ink); font-family: var(--serif); font-size: 16px; font-weight: 600; }
.result-head .query-note { color: var(--faint); }

.doc-list { display: flex; flex-direction: column; gap: 10px; }

.doc {
  position: relative;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) auto;
  gap: 16px;
  padding: 16px 18px;
  background: rgba(253, 250, 243, 0.78);
  border: 1px solid var(--line);
  border-radius: 6px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
  cursor: pointer;
  -webkit-tap-highlight-color: rgba(46, 106, 93, 0.12);
}

.doc-hit {
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: 6px;
}

.doc-hit:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 2px;
}

.doc-icon,
.doc-body {
  position: relative;
  z-index: 2;
  pointer-events: none;
}

.doc-actions {
  position: relative;
  z-index: 3;
}

.doc:active {
  background: var(--jade-soft);
  border-color: rgba(46, 106, 93, 0.4);
}

.doc:hover { border-color: rgba(46, 106, 93, 0.34); box-shadow: var(--shadow-sm); transform: translateY(-1px); }

.doc-icon {
  display: grid;
  width: 46px;
  height: 54px;
  place-items: center;
  align-content: center;
  gap: 1px;
  color: var(--jade-deep);
  background: var(--jade-soft);
  border-radius: 3px 9px 3px 3px;
  font-family: var(--serif);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.doc-icon small { font-family: var(--sans); font-size: 8px; font-weight: 400; opacity: 0.65; }
.doc-icon[data-ext="pdf"] { color: #8c3d2f; background: var(--cinnabar-soft); }
.doc-icon[data-ext="docx"] { color: #2b4f7a; background: var(--blue-soft); }
.doc-icon[data-ext="xlsx"], .doc-icon[data-ext="xls"] { color: #2f6a45; background: #e5f0e6; }
.doc-icon[data-ext="pptx"] { color: #8a5a22; background: var(--gold-soft); }
.doc-icon[data-ext="png"], .doc-icon[data-ext="jpg"], .doc-icon[data-ext="jpeg"] { color: #6d4f65; background: #f1e8ef; }

.doc-body { min-width: 0; }

.doc-title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 8px;
  font-family: var(--serif);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.doc-title a:hover { color: var(--jade); }

.doc-title mark, .doc-excerpt mark { padding: 0 1px; color: inherit; background: rgba(246, 214, 143, 0.55); border-radius: 2px; }

.doc-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 10px;
  margin-top: 5px;
  color: var(--faint);
  font-size: 10.5px;
}

.doc-meta .sep { color: rgba(31, 47, 45, 0.25); }

.badge {
  padding: 1px 7px;
  border-radius: 2px;
  font-size: 9.5px;
  letter-spacing: 0.03em;
}

.badge.source { color: var(--jade); background: var(--jade-soft); }
.badge.lesson { color: var(--cinnabar); background: var(--cinnabar-soft); }
.badge.type { color: var(--gold); background: var(--gold-soft); }
.badge.scan { color: var(--blue); background: var(--blue-soft); }

.doc-excerpt {
  display: -webkit-box;
  margin-top: 8px;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.75;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
}

.doc-actions { display: flex; flex-direction: column; align-items: flex-end; justify-content: center; gap: 6px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 34px;
  padding: 6px 13px;
  color: var(--jade-deep);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  font-size: 11.5px;
  white-space: nowrap;
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.btn svg { width: 13px; height: 13px; }
.btn:hover { background: var(--jade); border-color: var(--jade); color: var(--paper-2); }
.btn.is-muted { color: var(--faint); border-color: var(--line); cursor: not-allowed; opacity: 0.65; }
.btn.is-muted:hover { color: var(--faint); background: transparent; border-color: var(--line); }
.btn-primary { color: #fdf9ef; background: var(--jade-deep); border-color: var(--jade-deep); }
.btn-primary:hover { background: var(--jade); border-color: var(--jade); }
.btn-ghost { border-color: transparent; color: var(--muted); }
.btn-ghost:hover { color: var(--jade); background: var(--jade-soft); border-color: transparent; }

.load-more { display: flex; justify-content: center; padding: 22px 0 8px; }

.empty {
  padding: 56px 20px;
  text-align: center;
  background: rgba(253, 250, 243, 0.6);
  border: 1px dashed var(--line-strong);
  border-radius: 6px;
}

.empty .mark { color: var(--faint); font-family: var(--serif); font-size: 40px; line-height: 1; }
.empty h3 { margin-top: 12px; font-size: 17px; }
.empty p { margin-top: 6px; color: var(--muted); font-size: 12px; }

/* ---------- 按课文 ---------- */

.lesson-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 20px; }

.lesson-card {
  padding: 16px 18px;
  text-align: left;
  background: rgba(253, 250, 243, 0.74);
  border: 1px solid var(--line);
  border-radius: 6px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.lesson-card:hover { border-color: rgba(46, 106, 93, 0.34); box-shadow: var(--shadow-sm); transform: translateY(-2px); }

.lesson-card .no { color: var(--cinnabar); font-family: var(--serif); font-size: 11px; letter-spacing: 0.08em; }
.lesson-card h3 { margin-top: 5px; font-size: 16px; }
.lesson-card .cnt { margin-top: 8px; color: var(--muted); font-size: 10.5px; }
.lesson-card .cnt b { color: var(--jade); font-family: var(--serif); font-size: 15px; font-weight: 600; }
.lesson-card.is-empty { opacity: 0.56; }

/* ---------- 详情 ---------- */

.doc-hero { padding: 30px 0 0; }

.crumb { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; color: var(--faint); font-size: 11px; }
.crumb a:hover { color: var(--jade); }

.doc-title-block {
  position: relative;
  margin-top: 16px;
  padding: 26px 30px;
  overflow: hidden;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.doc-title-block h1 { max-width: 820px; font-size: clamp(1.55rem, 2.8vw, 2.1rem); line-height: 1.45; overflow-wrap: anywhere; }
.doc-title-block .meta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; margin-top: 12px; color: var(--muted); font-size: 11px; }
.doc-title-block .actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }

.doc-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 26px; align-items: start; padding: 26px 0 70px; }

.panel { padding: 22px 24px; background: rgba(253, 250, 243, 0.78); border: 1px solid var(--line); border-radius: 6px; }
.panel + .panel { margin-top: 14px; }
.panel h2 { display: flex; align-items: center; gap: 8px; font-size: 15px; }
.panel h2 .dash { width: 3px; height: 13px; background: var(--cinnabar); border-radius: 1px; }
.panel .hint-line { margin-top: 6px; color: var(--faint); font-size: 10.5px; }

.doc-text {
  max-height: 62vh;
  margin-top: 14px;
  padding: 16px 18px;
  overflow: auto;
  color: var(--ink-soft);
  background: rgba(244, 238, 225, 0.5);
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: var(--serif);
  font-size: 13.5px;
  line-height: 1.95;
  white-space: pre-wrap;
  word-break: break-word;
}

.doc-text:empty { display: none; }

.info-list { display: flex; flex-direction: column; gap: 1px; margin-top: 12px; }
.info-list div { display: flex; gap: 12px; padding: 7px 0; border-bottom: 1px dashed var(--line); font-size: 11.5px; }
.info-list div:last-child { border-bottom: 0; }
.info-list dt { flex: 0 0 62px; color: var(--faint); }
.info-list dd { min-width: 0; flex: 1; margin: 0; color: var(--ink-soft); word-break: break-all; }

.path-link { color: var(--jade); font-size: 11px; }

.related { display: flex; flex-direction: column; }
.related a { display: flex; align-items: baseline; gap: 6px; padding: 7px 0; border-bottom: 1px dashed var(--line); font-size: 11.5px; line-height: 1.6; }
.related a:last-child { border-bottom: 0; }
.related a:hover { color: var(--jade); }
.related .no { flex: 0 0 auto; color: var(--faint); font-size: 9.5px; }

.scan-note { display: flex; gap: 10px; margin-top: 12px; padding: 12px 14px; color: var(--blue); background: var(--blue-soft); border-radius: 4px; font-size: 11px; line-height: 1.7; }
.scan-note strong { flex: 0 0 auto; }

.badge.scope { color: #6d4f65; background: #f1e8ef; }
.badge.unit { color: var(--jade); background: #eef2ea; border: 1px solid rgba(46, 106, 93, 0.16); }

.twin-note { margin-top: 8px; color: var(--faint); font-size: 10.5px; }

.plain-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.plain-table th { padding: 9px 12px; color: var(--muted); background: rgba(236, 228, 211, 0.5); border-bottom: 1px solid var(--line); font-size: 10.5px; font-weight: 600; letter-spacing: 0.06em; text-align: left; }
.plain-table td { padding: 9px 12px; border-bottom: 1px solid var(--line); color: var(--ink-soft); line-height: 1.65; }
.plain-table tr:last-child td { border-bottom: 0; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 4px; }

.about-list { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.about-list li { position: relative; padding-left: 16px; color: var(--ink-soft); font-size: 12px; line-height: 1.8; }
.about-list li::before { position: absolute; top: 9px; left: 0; width: 5px; height: 5px; content: ""; background: var(--gold); border-radius: 50%; }
kbd { padding: 1px 5px; color: var(--ink-soft); background: var(--paper-3); border: 1px solid var(--line); border-radius: 3px; font-family: var(--sans); font-size: 10px; }

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  z-index: 200;
  padding: 10px 18px;
  color: var(--paper-2);
  background: rgba(27, 69, 61, 0.96);
  border-radius: 4px;
  font-size: 12px;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

.filter-empty-hint {
  margin-top: 12px;
  padding: 12px 14px;
  color: var(--muted);
  background: rgba(169, 127, 63, 0.08);
  border-left: 2px solid var(--gold);
  font-size: 11.5px;
  line-height: 1.75;
}

/* ---------- 页脚 ---------- */

.site-footer { margin-top: 30px; color: rgba(253, 250, 243, 0.62); background: #173b34; }
.site-footer .inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding: 22px 0; font-size: 10.5px; }
.site-footer a:hover { color: #e8d2a9; }
.site-footer .paths { color: rgba(253, 250, 243, 0.42); }

/* ---------- 响应式 ---------- */

@media (max-width: 980px) {
  .source-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lesson-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .doc-layout { grid-template-columns: 1fr; }
  .nav { display: none; }
  .hero-head { align-items: flex-start; flex-direction: column; gap: 14px; }
  .hero-count { text-align: left; }
  .hero-count strong { display: inline; margin-right: 6px; font-size: 24px; }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .search-submit { min-height: 46px; }
  .chip { min-height: 30px; }
  .header-search { min-height: 38px; }
  .hero { padding: 30px 0 18px; }
  .source-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .source-card { padding: 12px 13px; }
  .source-card .n { font-size: 20px; }
  .search-panel { padding: 5px; }
  .search-submit { padding: 0 14px; font-size: 12px; }
  .search-icon { width: 34px; }
  #query { font-size: 15px; }
  .doc { grid-template-columns: 38px minmax(0, 1fr); gap: 12px; padding: 13px 14px; }
  .doc-icon { width: 36px; height: 44px; font-size: 9px; }
  .doc-actions { grid-column: 2; flex-direction: row; justify-content: flex-start; gap: 8px; margin-top: 4px; }
  .doc-actions .btn { min-height: 40px; padding: 8px 16px; font-size: 12px; }
  .filters { gap: 8px; }
  .sort-toggle { margin-left: 0; }
  .lesson-grid { grid-template-columns: 1fr; }
  .doc-title-block { padding: 20px 18px; }
  .panel { padding: 17px 16px; }
  .doc-text { font-size: 12.5px; }
  .hero-count { display: none; }
}

@media print {
  .site-header, .filters, .doc-actions, .site-footer, .hero .search-panel, .source-grid { display: none !important; }
  body { background: #fff; }
  .doc-text { max-height: none; border: 0; background: #fff; }
}