/* دور ۱۶ — کتابخانه: کاشی‌های دسته (آیکون بزرگ + عنوان فارسی/انگلیسی) متمایز از کارت فایل‌ها + منوی درختی */
body[data-page="library"] .tm-bar{--tm-acc:#8b5e34;--tm-ink:#2f2416}
#lbCats{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px}
.lb16-cat{--c:#8b5e34;position:relative;isolation:isolate;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;min-height:206px;padding:26px 14px 20px;border-radius:26px;text-decoration:none;text-align:center;overflow:hidden;
  color:#fff;background:linear-gradient(150deg,color-mix(in srgb,var(--c) 82%,#fff) 0%,var(--c) 48%,color-mix(in srgb,var(--c) 70%,#000) 100%);
  box-shadow:0 18px 34px -20px color-mix(in srgb,var(--c) 85%,#000),inset 0 1px 0 rgba(255,255,255,.35);transition:transform .35s cubic-bezier(.22,.9,.32,1),box-shadow .35s}
.lb16-cat::before{content:"";position:absolute;inset:0;z-index:-1;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Ccircle cx='2' cy='2' r='1.3' fill='%23fff' fill-opacity='.16'/%3E%3C/svg%3E")}
.lb16-glow{position:absolute;z-index:-1;width:180px;height:180px;border-radius:50%;top:-70px;inset-inline-end:-60px;background:radial-gradient(closest-side,rgba(255,255,255,.38),transparent);transition:transform .5s}
.lb16-cat:hover{transform:translateY(-6px) scale(1.015);box-shadow:0 28px 44px -20px color-mix(in srgb,var(--c) 90%,#000),inset 0 1px 0 rgba(255,255,255,.35)}
.lb16-cat:hover .lb16-glow{transform:scale(1.5)}
.lb16-ic{width:96px;height:96px;border-radius:28px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.94);box-shadow:0 12px 24px -12px rgba(0,0,0,.45);margin-bottom:8px;transition:transform .35s}
.lb16-ic .ic3,.lb16-ic img{width:74px;height:74px}
.lb16-cat:hover .lb16-ic{transform:rotate(-4deg) scale(1.05)}
.lb16-cat b{font-size:1.08rem;font-weight:900;line-height:1.5;text-shadow:0 1px 2px rgba(0,0,0,.2)}
.lb16-cat small{font:700 .64rem/1.4 'Inter',system-ui,sans-serif;letter-spacing:.14em;text-transform:uppercase;opacity:.85}
.lb16-n{position:absolute;top:12px;inset-inline-start:12px;font-size:.74rem;font-weight:800;padding:3px 9px;border-radius:99px;background:rgba(0,0,0,.18);backdrop-filter:blur(4px)}
@media (max-width:640px){#lbCats{grid-template-columns:1fr 1fr;gap:10px}.lb16-cat{min-height:168px;padding:22px 8px 14px;border-radius:20px}.lb16-ic{width:76px;height:76px;border-radius:22px}.lb16-ic .ic3,.lb16-ic img{width:58px;height:58px}.lb16-cat b{font-size:.95rem}}
@media (prefers-reduced-motion:reduce){.lb16-cat,.lb16-ic{transition:none}}