/* =========================================================
   THƯ VIỆN SỐ — phần mở rộng: menu, logo, mượn sách giấy, tài liệu & truyền thông
   Nạp sau app.css; dùng chung token (--brand, --gold, --paper…).
   Mọi phần tử có [hidden] mà ta gán display riêng đều có rule [hidden]{display:none} đi kèm.
   ========================================================= */

/* ---------- topbar: logo tròn + menu ---------- */
.topbar::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;background:linear-gradient(90deg,var(--gold),rgba(242,182,0,0) 70%);pointer-events:none}
.brand-mark{width:42px;height:42px;border-radius:50%;box-shadow:0 0 0 1.5px rgba(11,79,168,.18),0 6px 14px -8px rgba(22,35,59,.5)}
.brand-tx em{color:var(--brand)}
.topnav-link{position:relative;transition:background .15s,color .15s}
.topnav-link.active{color:var(--brand-deep);background:var(--gold-lt)}
.topnav-link:focus-visible,.pill:focus-visible,.btn:focus-visible,.lcard-cover:focus-visible,.pic-btn:focus-visible,.dlg-x:focus-visible,.lbx button:focus-visible{outline:3px solid var(--gold);outline-offset:2px}

/* ---------- 3 lối vào dưới phần giới thiệu ---------- */
.services{padding:0 0 34px}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.svc{display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:16px;background:var(--card);border:1px solid var(--line);
  box-shadow:var(--shadow-s);transition:transform .2s var(--ease),border-color .2s,box-shadow .2s}
.svc:hover{transform:translateY(-3px);border-color:var(--gold);box-shadow:var(--shadow-m)}
.svc-ic{flex:none;width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:var(--gold-lt);color:var(--brand-deep)}
.svc-tx{display:flex;flex-direction:column;gap:2px;min-width:0}
.svc-tx strong{font-size:14.5px;font-weight:800;line-height:1.3}
.svc-tx span{font-size:12.5px;color:var(--ink-soft);line-height:1.4}

/* ---------- đầu trang con (mượn sách, tài liệu) ---------- */
.page-head{padding:44px 0 26px;border-bottom:1px solid var(--line);
  background:radial-gradient(60% 120% at 92% 0%,rgba(255,196,0,.22),transparent 60%),var(--paper)}
.page-title{font-family:var(--serif);font-size:clamp(28px,4.4vw,42px);line-height:1.1;margin:0 0 12px;font-weight:700;letter-spacing:-.01em}
.page-sub{max-width:62ch;font-size:15px;line-height:1.65;color:var(--ink-soft);margin:0}
.steps{list-style:none;display:flex;flex-wrap:wrap;gap:10px 22px;margin:22px 0 0;padding:0}
.steps li{display:flex;align-items:center;gap:10px;font-size:13.5px;font-weight:700;color:var(--ink)}
.steps b{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--brand);color:#fff;font-family:var(--mono);font-size:13px}

.mini-search{display:flex;align-items:center;gap:10px;flex:1 1 280px;max-width:460px;height:46px;padding:0 14px;border-radius:12px;
  background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-s);color:var(--ink-faint);transition:border-color .15s,box-shadow .15s}
.mini-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(11,79,168,.14);color:var(--brand)}
.mini-search input{flex:1;min-width:0;border:0;outline:0;background:none;font:inherit;font-size:14.5px;color:var(--ink)}

.pills{display:flex;flex-wrap:wrap;gap:8px}
.pill{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 15px;border-radius:999px;background:var(--card);border:1.5px solid var(--line);
  font-size:13.5px;font-weight:700;color:var(--ink-soft);transition:background .15s,border-color .15s,color .15s}
.pill span{font-family:var(--mono);font-size:11px;padding:1px 7px;border-radius:999px;background:var(--paper-2);color:var(--ink-soft)}
.pill:hover{border-color:var(--gold)}
.pill.on{background:var(--brand);border-color:var(--brand);color:#fff}
.pill.on span{background:rgba(255,255,255,.2);color:#fff}
.tabs{margin-top:22px}

.pager-info{align-self:center;font-size:12.5px;color:var(--ink-faint)}

/* ---------- mượn sách giấy ---------- */
.lend-wrap{padding-top:28px;padding-bottom:70px}
.lend-bar{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:24px}
.lend-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:22px 18px}
.lcard{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s,border-color .2s}
.lcard:hover{transform:translateY(-3px);box-shadow:var(--shadow-m);border-color:rgba(242,182,0,.7)}
.lcard-cover{position:relative;display:block;width:100%;aspect-ratio:3/3.6;background:var(--paper-2);padding:0}
.lcard-cover img{width:100%;height:100%;object-fit:cover;display:block;transition:filter .2s}
.lcard.is-out .lcard-cover img{filter:grayscale(.65) brightness(.92)}
.lbadge{position:absolute;left:10px;top:10px;padding:4px 11px;border-radius:999px;font-size:11.5px;font-weight:800;letter-spacing:.01em;box-shadow:var(--shadow-s)}
.lbadge.ok{background:#1E9E5A;color:#fff}
.lbadge.out{background:var(--ink);color:#fff}
.lbadge.inline{position:static;display:inline-block;box-shadow:none}
.lcard-body{display:flex;flex-direction:column;gap:6px;padding:14px 15px 15px;flex:1}
.lcard-title{margin:0;font-family:var(--serif);font-size:16px;line-height:1.3;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.lcard-author{margin:0;font-size:12px;color:var(--ink-faint);font-weight:600}
.lcard-sum{margin:0;font-size:13px;line-height:1.55;color:var(--ink-soft);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.lcard-btn{margin-top:auto;width:100%}
.lcard-body .lcard-btn{margin-top:10px}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}

/* ---------- hộp thoại (mượn sách) ---------- */
body.dlg-open{overflow:hidden}
.dlg{position:fixed;inset:0;z-index:150;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(15,25,45,.55);backdrop-filter:blur(3px)}
.dlg[hidden]{display:none}
.dlg-sheet{position:relative;width:100%;max-width:620px;max-height:min(90dvh,760px);overflow-y:auto;background:var(--paper);border-radius:22px;box-shadow:var(--shadow-l);animation:dlgIn .28s var(--ease)}
@keyframes dlgIn{from{opacity:0;transform:translateY(14px) scale(.985)}to{opacity:1;transform:none}}
.dlg-x{position:absolute;top:12px;right:12px;z-index:2;width:38px;height:38px;border-radius:12px;background:var(--paper-2);font-size:15px;color:var(--ink-soft);display:grid;place-items:center}
.dlg-x:hover{background:var(--gold-lt);color:var(--ink)}
.dlg-body{padding:26px}
.dlg-book{display:grid;grid-template-columns:190px 1fr;gap:24px;align-items:start}
.dlg-cover{width:100%;aspect-ratio:3/4.2;object-fit:cover;border-radius:10px;background:var(--paper-2);box-shadow:var(--shadow-m)}
.dlg-title{font-family:var(--serif);font-size:24px;line-height:1.2;font-weight:700;margin:10px 0 8px;padding-right:34px}
.dlg-author{margin:0 0 4px;font-size:14px;color:var(--ink-soft);font-weight:600}
.dlg-shelf{margin:0 0 12px;font-size:12.5px;color:var(--ink-faint)}
.dlg-sum{margin:0 0 18px;font-family:var(--serif);font-size:15px;line-height:1.7;white-space:pre-line}
.dlg-note{margin:0;padding:12px 14px;border-radius:12px;background:var(--paper-2);font-size:13.5px;line-height:1.55;color:var(--ink-soft)}
.dlg-form{display:grid;gap:14px}
.dlg-form .back-link{justify-self:start;margin:0}
.dlg-form .dlg-title{margin:0}
.dlg-for{margin:-6px 0 4px;font-family:var(--serif);font-size:16px;color:var(--ink-soft)}
.fld{display:grid;gap:6px}
.fld>span{font-size:13px;font-weight:700}
.fld i{font-style:normal;color:#C0392B}
.fld small{font-weight:500;color:var(--ink-faint)}
.fld input,.fld textarea{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;background:#fff;font:inherit;font-size:16px;color:var(--ink);outline:0;transition:border-color .15s,box-shadow .15s}
.fld textarea{resize:vertical;min-height:70px;line-height:1.5}
.fld input:focus,.fld textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(11,79,168,.14)}
.hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.dlg-hint{margin:0;font-size:12.5px;line-height:1.6;color:var(--ink-soft)}
.form-err{margin:0;padding:11px 14px;border-radius:12px;background:#FDECEA;color:#8A2F28;font-size:13.5px;font-weight:600;line-height:1.5}
.form-err[hidden]{display:none}
.dlg-done{display:grid;justify-items:center;gap:12px;text-align:center;padding:12px 6px 6px}
.dlg-done p{margin:0;max-width:44ch;font-size:14.5px;line-height:1.65;color:var(--ink-soft)}
.dlg-done .dlg-title{margin:0;padding:0}
.done-ic{width:68px;height:68px;border-radius:50%;display:grid;place-items:center;background:#E2F5EA;color:#1E9E5A}
.done-code{margin:4px 0;padding:10px 24px;border-radius:14px;background:var(--gold-lt);border:1.5px dashed var(--gold);font-family:var(--mono);font-size:24px;font-weight:700;letter-spacing:.06em;color:var(--brand-deep)}

/* ---------- văn bản ---------- */
.docs-wrap{padding-top:26px;padding-bottom:70px;display:grid;gap:22px}
.doc-list{display:grid;gap:12px}
.doc{display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;padding:16px 18px;border-radius:16px;background:var(--card);border:1px solid var(--line);transition:border-color .2s,box-shadow .2s}
.doc:hover{border-color:rgba(242,182,0,.8);box-shadow:var(--shadow-s)}
.doc-ic{display:grid;place-items:center;width:52px;height:52px;border-radius:14px;background:var(--brand-lt);color:var(--brand)}
.doc-title{margin:0;font-family:var(--serif);font-size:17px;line-height:1.3;font-weight:700}
.doc-meta{margin:3px 0 0;font-family:var(--mono);font-size:11.5px;color:var(--ink-faint)}
.doc-sum{margin:6px 0 0;font-size:13.5px;line-height:1.6;color:var(--ink-soft);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.doc-act{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.doc-act .btn{padding:10px 16px}

/* ---------- hình ảnh tuyên truyền ---------- */
.pic-grid{column-width:230px;column-gap:16px}
.pic{break-inside:avoid;margin:0 0 16px;border-radius:14px;overflow:hidden;background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-s)}
.pic-btn{display:block;width:100%;padding:0;background:var(--paper-2);overflow:hidden}
.pic-btn img{width:100%;height:auto;display:block;transition:transform .35s var(--ease)}
.pic:hover .pic-btn img{transform:scale(1.03)}
.pic figcaption{padding:10px 13px 12px;font-size:13px;font-weight:700;line-height:1.4}

.lbx{position:fixed;inset:0;z-index:160;display:flex;align-items:center;justify-content:center;padding:56px 70px;background:rgba(10,18,34,.94)}
.lbx[hidden]{display:none}
.lbx-fig{margin:0;max-width:min(1100px,100%);max-height:100%;display:flex;flex-direction:column;align-items:center;gap:12px;min-height:0}
.lbx-fig img{max-width:100%;max-height:calc(100dvh - 190px);object-fit:contain;border-radius:8px;box-shadow:0 20px 60px -20px #000}
.lbx-fig figcaption{display:grid;gap:4px;justify-items:center;text-align:center;color:#fff;font-size:14px;max-width:70ch}
.lbx-fig figcaption span{opacity:.8;font-size:13px;line-height:1.5}
.lbx-fig figcaption a{margin-top:2px;color:var(--gold);font-weight:700;font-size:13px}
.lbx-x{position:absolute;top:14px;right:16px;width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.12);color:#fff;font-size:16px}
.lbx-x:hover,.lbx-nav:hover{background:rgba(255,255,255,.24)}
.lbx-nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;font-size:26px}
.lbx-nav[hidden]{display:none}
.lbx-nav.prev{left:14px}
.lbx-nav.next{right:14px}

/* ---------- podcast ---------- */
.pod-list{display:grid;gap:14px}
.pod{display:grid;grid-template-columns:auto 1fr;gap:18px;padding:18px;border-radius:18px;background:var(--card);border:1px solid var(--line);transition:border-color .2s,box-shadow .2s}
.pod:hover{border-color:rgba(242,182,0,.8);box-shadow:var(--shadow-s)}
.pod-ic{width:84px;height:84px;border-radius:16px;overflow:hidden;display:grid;place-items:center;background:var(--gold-lt);color:var(--brand-deep)}
.pod-ic img{width:100%;height:100%;object-fit:cover}
.pod-main{min-width:0}
.pod-audio{width:100%;margin-top:12px;height:42px}
.pod-link{margin-top:10px;padding:9px 15px}

/* ---------- điện thoại ---------- */
@media (max-width:900px){
  .services-grid{grid-template-columns:1fr}
  .dlg-book{grid-template-columns:150px 1fr;gap:18px}
}
@media (max-width:760px){
  .topnav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;gap:2px;margin:0;padding:10px 14px 14px;
    background:rgba(255,252,242,.98);border-bottom:1px solid var(--line);box-shadow:var(--shadow-m)}
  .topnav.open{display:flex}
  .topnav-link{padding:12px 14px;font-size:15px}
  .icon-btn{display:grid;place-items:center;margin-left:auto}
  .page-head{padding:30px 0 20px}
  .lend-grid{grid-template-columns:repeat(2,1fr);gap:16px 12px}
  .lcard-body{padding:12px 12px 13px}
  .lcard-title{font-size:15px}
  .lcard-sum{-webkit-line-clamp:2}
  .doc{grid-template-columns:auto 1fr;gap:12px 14px}
  .doc-act{grid-column:1/-1;justify-content:flex-start}
  .pod{grid-template-columns:64px 1fr;gap:14px;padding:14px}
  .pod-ic{width:64px;height:64px}
  .lbx{padding:56px 14px 22px}
  .lbx-nav{top:auto;bottom:18px;transform:none}
  .lbx-nav.prev{left:calc(50% - 60px)}
  .lbx-nav.next{right:calc(50% - 60px)}
  .lbx-fig img{max-height:calc(100dvh - 230px)}
  /* hộp thoại = bottom sheet */
  .dlg{align-items:flex-end;padding:0}
  .dlg-sheet{max-width:none;max-height:92dvh;border-radius:24px 24px 0 0;animation-name:dlgUp}
  @keyframes dlgUp{from{transform:translateY(40px);opacity:.6}to{transform:none;opacity:1}}
  .dlg-body{padding:22px 18px calc(24px + env(safe-area-inset-bottom))}
  .dlg-book{grid-template-columns:1fr;justify-items:center;text-align:center}
  .dlg-cover{width:150px}
  .dlg-title{padding-right:0;font-size:22px}
}
@media (max-width:420px){
  .lend-grid{grid-template-columns:1fr 1fr}
  .pill{height:36px;padding:0 12px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){.dlg-sheet{animation:none}.lcard,.svc,.pic-btn img{transition:none}}