/* DIN eBooks - front end */
.din-ebooks{--din-blue:#0a66d1;--din-blue-dark:#06478f;--din-ink:#1d2733;--din-muted:#5b6876;--din-line:#e3e8ee;--din-soft:#f4f7fb;color:var(--din-ink);line-height:1.6}
.din-ebooks *,.din-ebooks *::before,.din-ebooks *::after{box-sizing:border-box}
.din-ebooks .din-icon{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.single-din_book .entry-meta,.single-din_book .post-thumb-img-content{display:none}

/* Buttons */
.din-ebooks .din-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:999px;font-size:15px;font-weight:600;line-height:1.2;text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.din-ebooks .din-btn-primary{background:var(--din-blue);color:#fff}
.din-ebooks .din-btn-primary:hover,.din-ebooks .din-btn-primary:focus{background:var(--din-blue-dark);color:#fff}
.din-ebooks .din-btn-outline{background:#fff;color:var(--din-blue);border-color:var(--din-blue)}
.din-ebooks .din-btn-outline:hover,.din-ebooks .din-btn-outline:focus{background:var(--din-blue);color:#fff}
.din-ebooks .din-btn-ghost{background:var(--din-soft);color:var(--din-blue-dark);border-color:var(--din-line)}
.din-ebooks .din-btn-ghost:hover,.din-ebooks .din-btn-ghost:focus{background:#e8f1fc;color:var(--din-blue-dark)}
.din-ebooks .din-btn-sm{padding:8px 14px;font-size:14px}
.din-ebooks .din-btn-sm .din-icon{width:16px;height:16px}
.din-ebooks .din-size{font-weight:400;opacity:.8}

/* Single book */
.din-book-hero{display:grid;grid-template-columns:minmax(200px,300px) 1fr;gap:40px;align-items:start;margin:8px 0 40px}
.din-book-cover img{display:block;width:100%;height:auto;border-radius:6px;box-shadow:0 18px 40px rgba(16,38,72,.18)}
.din-cover-placeholder{aspect-ratio:2/3;width:100%;display:flex;align-items:center;justify-content:center;background:var(--din-soft);border:1px solid var(--din-line);border-radius:6px;color:var(--din-blue)}
.din-cover-placeholder .din-icon{width:48px;height:48px}
.din-book-author{font-size:17px;margin:0 0 18px;color:var(--din-muted)}
.din-book-author a{color:var(--din-blue);text-decoration:none;font-weight:600}
.din-book-meta{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:1px;background:var(--din-line);border:1px solid var(--din-line);border-radius:10px;overflow:hidden;margin:0 0 24px}
.din-book-meta div{background:#fff;padding:12px 16px}
.din-book-meta dt{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--din-muted);margin:0}
.din-book-meta dd{margin:2px 0 0;font-size:15px;font-weight:600;color:var(--din-ink);word-break:break-word}
.din-book-actions{display:flex;flex-wrap:wrap;gap:12px}
.din-book-note{font-size:14px;color:var(--din-muted);margin:14px 0 0}
.din-book-section{margin:0 0 48px}
.din-book-section h2{font-size:24px;margin:0 0 16px;color:var(--din-ink)}
.din-book-reader{scroll-margin-top:100px}
.din-pdf-frame{position:relative;border:1px solid var(--din-line);border-radius:10px;overflow:hidden;height:80vh;min-height:520px}
.din-pdf-frame iframe{width:100%;height:100%;border:0}
.din-reader-note{font-size:14px;color:var(--din-muted);margin:10px 0 0}
.din-related-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.din-related-head a{color:var(--din-blue);font-weight:600;text-decoration:none}

/* Catalogue */
.din-toolbar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;background:var(--din-soft);border:1px solid var(--din-line);border-radius:12px;padding:14px;margin:0 0 24px}
.din-search{position:relative;flex:1 1 260px;margin:0}
.din-search .din-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--din-muted)}
.din-ebooks .din-toolbar input[type=search],.din-ebooks .din-toolbar select{width:100%;height:46px;font-size:15px;border:1px solid #cfd8e3;border-radius:8px;background:#fff;color:var(--din-ink);padding:0 14px}
.din-ebooks .din-toolbar input[type=search]{padding-left:42px}
.din-filter{flex:0 1 240px;margin:0}
.din-ebooks .din-toolbar .din-btn{height:46px}
.din-results{color:var(--din-muted);margin:0 0 20px}
.din-results a{color:var(--din-blue)}
.din-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:28px}
.din-grid-4{grid-template-columns:repeat(4,1fr)}
.din-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--din-line);border-radius:12px;overflow:hidden;transition:transform .2s,box-shadow .2s}
.din-card:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(16,38,72,.12)}
.din-card-cover{display:flex;align-items:center;justify-content:center;background:var(--din-soft);padding:22px 22px 0;aspect-ratio:4/5;overflow:hidden}
.din-card-cover img{display:block;max-height:100%;width:auto;max-width:100%;object-fit:contain;box-shadow:0 10px 24px rgba(16,38,72,.18);border-radius:3px}
.din-card-cover .din-cover-placeholder{height:100%;width:auto}
.din-card-body{display:flex;flex-direction:column;gap:6px;padding:18px;flex:1}
.din-card-title{font-size:16px;line-height:1.35;margin:0}
.din-card-title a{color:var(--din-ink);text-decoration:none}
.din-card-title a:hover{color:var(--din-blue)}
.din-card-author,.din-card-meta{font-size:14px;color:var(--din-muted);margin:0}
.din-card-actions{display:flex;gap:8px;margin-top:auto;padding-top:12px;flex-wrap:wrap}
.din-pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:6px;margin:36px 0 0}
.din-pagination .page-numbers{display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 12px;border:1px solid var(--din-line);border-radius:8px;color:var(--din-ink);text-decoration:none}
.din-pagination .page-numbers.current,.din-pagination a.page-numbers:hover{background:var(--din-blue);border-color:var(--din-blue);color:#fff}
.din-empty{padding:40px;text-align:center;background:var(--din-soft);border-radius:12px;color:var(--din-muted)}

@media (max-width:900px){.din-grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:700px){
	.din-book-hero{grid-template-columns:1fr;gap:28px}
	.din-book-cover{max-width:240px;margin:0 auto}
	.din-book-actions .din-btn{flex:1 1 100%}
	.din-grid{grid-template-columns:repeat(2,1fr);gap:16px}
	.din-card-cover{padding:14px 14px 0}
	.din-card-body{padding:14px}
	.din-card-actions .din-btn{flex:1 1 100%}
	.din-pdf-frame{height:70vh;min-height:420px}
}