body{background-color:#0f0f0f;color:#f1f1f1;font-family:'Segoe UI',Roboto,sans-serif;font-size:16px;line-height:1.6;margin:0;padding:0;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}#siteHeader{position:fixed;top:0;left:0;width:100%;z-index:1050;display:block !important;background-color:#0f0f0f;}main.container,main{padding-top:var(--header-height,260px);transition:padding-top 0.25s ease;}.header-image{width:100%;margin:0;padding:0;}.header-image img{display:block;width:100%;height:auto;max-height:220px;object-fit:cover;object-position:center;}.navbar-custom{background-color:#0f0f0f !important;width:100%;padding-top:0.3rem;padding-bottom:0.3rem;border-top:1px solid #111;}.navbar-custom .navbar-brand{padding-top:0.25rem;padding-bottom:0.25rem;font-size:1.2rem;font-weight:700;letter-spacing:0.05em;}#siteHeader nav.navbar .nav-link{padding-top:0.25rem;padding-bottom:0.25rem;padding-left:1rem;padding-right:1rem;font-size:0.9rem;line-height:1.2;transition:color 0.35s ease,background-color 0.35s ease,transform 0.35s ease;}nav.navbar .nav-link:hover,nav.navbar .nav-link:focus,nav.navbar .nav-link.active{color:#0463f1;background-color:rgba(13,110,253,0.15);border-radius:6px;outline:none;transform:translateY(-2px);}.image-box{position:relative;overflow:hidden;border-radius:12px;box-shadow:0 6px 18px rgba(0,0,0,0.2);cursor:pointer;transition:transform 0.5s cubic-bezier(0.25,0.8,0.25,1),box-shadow 0.5s cubic-bezier(0.25,0.8,0.25,1);}.image-box:hover{transform:scale(1.05);box-shadow:0 16px 40px rgba(0,0,0,0.4);}.image-box img{display:block;width:100%;height:auto;border-radius:12px;transition:filter 0.5s ease,transform 0.5s ease;}.image-box:hover img{filter:brightness(0.7);transform:scale(1.02);}.overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-weight:700;font-size:1.4rem;text-shadow:0 3px 10px rgba(0,0,0,0.8);opacity:0;transition:opacity 0.35s ease;pointer-events:none;padding:0 15px;text-align:center;}.image-box:hover .overlay{opacity:1;}.box{padding:1.2rem 1.8rem;background-color:#fff;color:#444;border-radius:0 0 12px 12px;box-shadow:inset 0 1px 2px rgba(0,0,0,0.07);transition:background-color 0.35s ease,box-shadow 0.35s ease,transform 0.35s ease;}.box:hover{background-color:#f8f9fa;transform:translateY(-3px);box-shadow:0 8px 20px rgba(0,0,0,0.2);}.box-text{font-size:1rem;color:#444;line-height:1.5;max-height:8.5em;overflow-y:auto;padding-right:6px;}.box-text::-webkit-scrollbar{width:7px;}.box-text::-webkit-scrollbar-thumb{background-color:#999;border-radius:4px;}button.btn{padding:0.65rem 1.4rem;font-size:1.15rem;border-radius:8px;transition:background-color 0.35s ease,box-shadow 0.35s ease,transform 0.35s ease;}button.btn-primary{background-color:#0d6efd;border-color:#0d6efd;}button.btn-primary:hover,button.btn-primary:focus{background-color:#0b5ed7;border-color:#031633;box-shadow:0 6px 16px rgba(13,110,253,0.5);transform:translateY(-2px);}#pdf_box{position:relative;background-color:#1a1a1a;border:1px solid #444;overflow:hidden;}#pdf_container{width:100%;height:75vh;}#pdf_container iframe{width:100%;height:100%;border:none;background:#fff;transition:transform 0.35s ease,box-shadow 0.35s ease;}#pdf_container iframe:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,0.2);}a:focus,button:focus,input:focus,textarea:focus{outline:3px solid #0d6efd;outline-offset:2px;transition:outline-offset 0.15s ease-in-out;}@media (max-width:576px){body{font-size:14px;line-height:1.4;}header .navbar-brand{font-size:1.3rem;}nav.navbar .nav-link{font-size:1rem;padding:0.7rem 1rem;}.overlay{opacity:1;position:static;transform:none;text-shadow:none;margin-top:0.5rem;display:block;}}@media (min-width:577px) and (max-width:991px){header .navbar-brand{font-size:1.6rem;}nav.navbar .nav-link{font-size:1.1rem;}}@media (min-width:992px){header .navbar-brand{font-size:1.8rem;}nav.navbar .nav-link{font-size:1.15rem;}}.x-icon{width:18px;height:auto;fill:currentColor;color:#fff;}.x-link{color:#fff;text-decoration:none;}.x-link:hover{color:#0463f1;}.linkedin-icon{width:18px;height:18px;vertical-align:middle;fill:currentColor;margin-right:5px;}.linkedin-link{color:#fff;text-decoration:none;}.linkedin-link:hover{color:#0A66C2;}html{scroll-behavior:smooth;}#content-area{min-height:80vh;transition:opacity 0.3s ease-in-out;}.page-buch footer{margin-top:20px !important;padding-top:16px !important;padding-bottom:16px !important;}.page-buch main{padding-bottom:0 !important;}.page-index main{padding-top:10px !important;}.book-card-link{display:block;text-decoration:none;color:inherit;}.book-card-link:hover .book-card{box-shadow:0 12px 28px rgba(0,0,0,0.35);transform:translateY(-2px);transition:transform 0.2s ease,box-shadow 0.2s ease;}@media (max-width:768px){body{font-size:15px;}.header-image img{max-height:140px;}#siteHeader nav.navbar .nav-link{padding-left:0.75rem;padding-right:0.75rem;font-size:0.95rem;}.card-body{padding:0.9rem;}.card-title{font-size:1.05rem;}.card-text{font-size:0.9rem;}.book-card .btn{width:100%;text-align:center;}.footer-bottom{align-items:flex-start;}.footer-social{gap:0.5rem;flex-wrap:wrap;}}.site-footer{color:#cbd3dd;background:#0f0f0f;}.footer-top{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-bottom:0.75rem;border-bottom:1px solid #1b2028;}.footer-title{font-weight:700;color:#fff;letter-spacing:0.02em;}.footer-claim{font-size:0.9rem;color:#98a2b3;}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-top:0.75rem;}.footer-links a{color:#cbd3dd;text-decoration:none;}.footer-links a:hover{color:#4aa3ff;}.footer-sep{margin:0 0.5rem;color:#3b4351;}.footer-social{display:flex;align-items:center;gap:0.6rem;}.footer-follow{color:#98a2b3;font-size:0.9rem;}.social-link{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border:1px solid #2a2f36;border-radius:999px;color:#fff;text-decoration:none;transition:transform 0.2s ease,border-color 0.2s ease,color 0.2s ease,background 0.2s ease;}.social-link:hover{transform:translateY(-1px);border-color:#4aa3ff;color:#4aa3ff;background:rgba(74,163,255,0.08);}.social-icon{width:16px;height:16px;}@media (max-width:768px){.footer-top,.footer-bottom{flex-direction:column;align-items:flex-start;}}html,body{height:auto;min-height:100vh;}main{min-height:calc(100vh - 140px);margin-top:200px;overflow-y:auto;padding-bottom:2rem;}.autor-text{white-space:pre-line;overflow-wrap:break-word;}.portrait-img{max-width:250px;width:100%;height:auto;}.honeypot{visibility:hidden !important;opacity:0 !important;position:absolute !important;left:-9999px !important;height:0 !important;width:0 !important;pointer-events:none !important;}.field-error{display:none;align-items:center;color:#dc3545;font-size:0.875rem;margin-top:0.25rem;}.field-error i{margin-right:0.25rem;}.valid-feedback{display:none;align-items:center;color:#198754;font-size:0.875rem;margin-top:0.25rem;}.valid-feedback i{margin-right:0.25rem;}.form-actions{margin-top:1.5rem;}.x-icon{width:20px;height:auto;fill:currentColor;}#siteHeader{position:fixed;top:0;left:0;width:100%;z-index:1050;}main{padding-top:120px;}.book-card:first-of-type{margin-top:3px;}.pdf-frame{width:100%;height:65vh;border:1px solid #ccc;border-radius:8px;}.row-stretch{display:flex;align-items:stretch;}.col-flex{display:flex;flex-direction:column;justify-content:space-between;}