.fb-buch{--b-text: #1b2340;--b-blau: #213a8f;--b-papier: #ffffff;--b-rand: #dfe5f0;--b-dauer: 0.7s;  margin-top: 8px;color: var(--b-text);font-family: "PT Sans", Arial, sans-serif}  .fb-buch__pfad ol{display: flex;flex-wrap: wrap;gap: 4px 0;margin: 0 0 14px;padding: 0;list-style: none;font-size: 15px}.fb-buch__pfad li{display: flex;align-items: center}.fb-buch__pfad li + li::before{margin: 0 8px;color: #6c757d;content: "›"}.fb-buch__pfad button{padding: 2px 0;text-align: left;border: 0;background: none;color: var(--b-blau);font: inherit;text-decoration: underline;text-underline-offset: 3px;cursor: pointer}.fb-buch__pfad [aria-current]{font-weight: 700}.fb-buch :is(button, a):focus-visible{outline: 3px solid var(--b-blau);outline-offset: 3px}  .fb-buch__intro{max-width: 760px;margin: 0 0 22px;font-size: 18px;line-height: 1.55}.fb-buch__buecher{display: flex;flex-wrap: wrap;gap: 28px;justify-content: center;align-items: flex-end;margin: 0;padding: 0 12px;list-style: none;perspective: 1400px}.fb-buch__buecher li{margin: 0}  .fb-buch__einband{position: relative;display: grid;grid-template-rows: auto 1fr auto auto;gap: 8px;width: 260px;height: 330px;padding: 22px 16px 18px 28px;border: 0;border-radius: 4px 10px 10px 4px;background: repeating-linear-gradient(135deg, rgb(255 255 255 / 3%) 0 2px, transparent 2px 5px), linear-gradient(90deg, rgb(0 0 0 / 28%) 0 12px, rgb(255 255 255 / 10%) 12px 14px, transparent 14px), var(--farbe);box-shadow: 6px 10px 22px rgb(20 30 60 / 28%), inset -6px 0 0 rgb(255 255 255 / 85%), inset -8px 0 0 rgb(0 0 0 / 10%);color: #fff;font: inherit;text-align: left;cursor: pointer;transform: rotateY(-14deg);transform-origin: left center;transition: transform 0.35s ease, box-shadow 0.35s ease}  .fb-buch__einband::after{position: absolute;inset: 12px 16px 12px 24px;border: 1px solid rgb(255 255 255 / 30%);border-radius: 4px;content: "";pointer-events: none}.fb-buch__einband:is(:hover, :focus-visible){box-shadow: 10px 18px 32px rgb(20 30 60 / 34%), inset -6px 0 0 rgb(255 255 255 / 85%), inset -8px 0 0 rgb(0 0 0 / 10%);transform: rotateY(0) translateY(-10px)}.fb-buch__marke{justify-self: start;padding: 3px 10px;border-radius: 999px;background: rgb(255 255 255 / 18%);font-size: 13px;font-weight: 700;letter-spacing: 0.06em;text-transform: uppercase}  .fb-buch__cover-titel{align-self: center;font-size: 19px;font-weight: 700;line-height: 1.25}.fb-buch__cover-form{font-size: 15px;opacity: 0.95}.fb-buch__cover-umfang{padding-top: 8px;border-top: 1px solid rgb(255 255 255 / 35%);font-size: 14px}.fb-buch__oeffnen{position: absolute;right: 22px;bottom: -14px;padding: 6px 14px;border-radius: 999px;background: #fff;box-shadow: 0 4px 12px rgb(20 30 60 / 20%);color: var(--b-blau);font-size: 14px;font-weight: 700;opacity: 0;transform: translateY(6px);transition: opacity 0.25s, transform 0.25s}.fb-buch__einband:is(:hover, :focus-visible) .fb-buch__oeffnen{opacity: 1;transform: none}  .fb-buch__heft{display: grid;align-content: start;  gap: 10px;width: 132px;height: 250px;padding: 18px 14px;border-radius: 3px 8px 8px 3px;background: linear-gradient(90deg, rgb(0 0 0 / 12%) 0 6px, transparent 6px), #f1f3f5;box-shadow: 4px 8px 16px rgb(20 30 60 / 20%);color: var(--b-text) !important;font-size: 14px;font-weight: 700;line-height: 1.35;text-decoration: none !important;transform: rotateZ(4deg);transform-origin: bottom left}.fb-buch__heft .fb-buch__marke{background: #dee2e6;color: var(--b-text)}.fb-buch__heft:hover{transform: rotateZ(0)}.fb-buch__brett{height: 16px;margin: 0 -8px;border-radius: 4px;background: linear-gradient(180deg, #d9dde3 0%, #c3c9d1 100%);box-shadow: 0 10px 18px rgb(20 30 60 / 16%)}  .fb-buch__band{position: relative;display: grid;grid-template-columns: 1fr 1fr;min-height: 440px;margin-right: 46px;  padding: 14px;border-radius: 10px;background: var(--farbe, #27398a);box-shadow: 0 20px 40px rgb(20 30 60 / 25%);perspective: 2200px}.fb-buch__seite{position: relative;display: flex}.fb-buch__papier{position: relative;flex: 1;padding: 30px 34px 44px;background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='22' viewBox='0 0 240 22'%3E%3Cpath d='M0 11c20-9 40-9 60 0s40 9 60 0 40-9 60 0 40 9 60 0' fill='none' stroke='%23eef2f8' stroke-width='1'/%3E%3C/svg%3E") 0 0 / 240px 22px, linear-gradient(180deg, #ffffff 0%, #f8fafd 100%);line-height: 1.5}  .fb-buch__links .fb-buch__papier, .fb-buch__blatt-hinten .fb-buch__papier, .ist-zurueck .fb-buch__blatt-vorn .fb-buch__papier{border-radius: 6px 0 0 6px;box-shadow: inset -26px 0 30px -24px rgb(0 0 0 / 30%)}.fb-buch__rechts .fb-buch__papier, .ist-vor .fb-buch__blatt-vorn .fb-buch__papier, .ist-zurueck .fb-buch__blatt-hinten .fb-buch__papier{border-radius: 0 6px 6px 0;box-shadow: inset 26px 0 30px -24px rgb(0 0 0 / 30%)}.fb-buch__seitenzahl{position: absolute;bottom: 14px;left: 50%;color: #6c757d;font-size: 13px;transform: translateX(-50%)}.fb-buch__kicker{margin: 0 0 10px;color: #495057;font-size: 13px;font-weight: 700;letter-spacing: 0.08em;text-transform: uppercase}.fb-buch__haupttitel{margin: 0 0 10px;color: var(--b-blau);font-size: 28px;line-height: 1.2}.fb-buch__haupttitel:focus{outline: none}.fb-buch__umfang{margin: 0 0 16px;font-size: 16px;font-weight: 700}.fb-buch__hinweis, .fb-buch__tipp{margin: 0 0 12px;font-size: 16px}.fb-buch__tipp{padding: 10px 12px;border-left: 3px solid var(--b-blau);background: #f3f5fa;color: #343a40;font-size: 15px}.fb-buch__symbol{display: inline-grid;width: 34px;height: 34px;place-items: center;color: var(--b-blau)}.fb-buch__symbol svg{width: 100%;height: 100%}.fb-buch__symbol.ist-gross{width: 72px;height: 72px;margin-bottom: 14px;padding: 14px;border-radius: 50%;background: #eef1f9}.fb-buch__rubrik{margin: 0 0 14px;padding-bottom: 8px;border-bottom: 2px solid var(--b-rand);color: var(--b-blau);font-size: 20px}  .fb-buch__verzeichnis{margin: 0;padding: 0;list-style: none;counter-reset: kapitel}.fb-buch__verzeichnis button{display: flex;gap: 8px;align-items: baseline;width: 100%;padding: 9px 2px;border: 0;border-bottom: 1px solid #e9edf4;background: none;color: var(--b-text);font: inherit;font-size: 17px;text-align: left;cursor: pointer;counter-increment: kapitel}.fb-buch__verzeichnis span::before{margin-right: 8px;color: var(--b-blau);font-weight: 700;content: counter(kapitel) "."}.fb-buch__verzeichnis i{flex: 1;border-bottom: 2px dotted #b4bfd2}.fb-buch__verzeichnis button:hover span{color: var(--b-blau);text-decoration: underline}  .fb-buch__cover-dauer{display: inline-block;margin-top: 6px;padding: 2px 9px;border-radius: 999px;background: rgb(255 255 255 / 92%);color: var(--farbe);font-size: 13px;font-weight: 700}  .fb-buch__blick{display: grid;gap: 8px;margin: 0 0 12px;padding: 14px 16px;border: 1px solid var(--b-rand);border-top: 3px solid var(--b-blau);border-radius: 8px;background: rgb(255 255 255 / 90%);font-size: 15px}.fb-buch__blick div{display: grid;grid-template-columns: 110px minmax(0, 1fr);gap: 10px}.fb-buch__blick dt{color: #495057;font-weight: 700}.fb-buch__blick dd{margin: 0}.fb-buch__zusatz, .fb-buch__hinweis-klein{margin: 0 0 10px;color: #343a40;font-size: 14px}.fb-buch__hinweis-klein{margin-top: 14px;padding: 10px 12px;border-left: 3px solid var(--b-blau);background: #f3f5fa}.fb-buch__quelle{margin: 0;color: #495057;font-size: 13px}.fb-buch__quelle a{color: var(--b-blau)}  .fb-buch__verzeichnis em{padding: 1px 8px;border-radius: 999px;background: #eef1f9;color: var(--b-blau);font-size: 13px;font-style: normal;font-weight: 700;white-space: nowrap}  .fb-buch__pruefung{display: flex;gap: 10px;align-items: flex-start;margin: 18px 0 0;padding: 12px 14px;border: 1px solid var(--b-rand);border-radius: 8px;background: rgb(255 255 255 / 92%);font-size: 15px}.fb-buch__uhr{flex: 0 0 22px;width: 22px;height: 22px;margin-top: 1px;border: 2px solid var(--b-blau);border-radius: 50%;background: linear-gradient(var(--b-blau), var(--b-blau)) 50% 30% / 2px 6px no-repeat, linear-gradient(90deg, var(--b-blau), var(--b-blau)) 70% 50% / 5px 2px no-repeat}.fb-buch__bestandteile{display: grid;gap: 12px;margin: 0;padding: 0;list-style: none;font-size: 18px;font-weight: 700}.fb-buch__bestandteile li{display: flex;gap: 12px;align-items: center}.fb-buch__themen{margin: 0;padding-left: 1.4em;font-size: 16px}.fb-buch__themen.ist-zweispaltig{columns: 2;column-gap: 48px}.fb-buch__themen li{margin: 0 0 7px;break-inside: avoid}.fb-buch__themen li::marker{color: var(--b-blau);font-weight: 700}  .fb-buch__laschen{position: absolute;top: 28px;right: -46px;display: grid;gap: 6px}.fb-buch__laschen button{min-width: 44px;min-height: 34px;padding: 4px 8px 4px 12px;border: 0;border-radius: 0 10px 10px 0;background: #e9ecf3;box-shadow: 2px 2px 6px rgb(20 30 60 / 15%);color: var(--b-blau);font: 700 14px/1 "PT Sans", sans-serif;text-align: left;cursor: pointer;transition: transform 0.2s, background 0.2s}.fb-buch__laschen button:hover{transform: translateX(4px)}.fb-buch__laschen button.ist-aktiv{background: #fff;color: var(--b-text);transform: translateX(6px)}  .fb-buch__blatt{position: absolute;top: 14px;bottom: 14px;width: calc(50% - 14px);z-index: 3;transform-style: preserve-3d;pointer-events: none}.fb-buch__blatt.ist-vor{left: 50%;transform-origin: left center;animation: fb-buch-vor var(--b-dauer) cubic-bezier(0.45, 0.05, 0.3, 1) forwards}.fb-buch__blatt.ist-zurueck{left: 14px;transform-origin: right center;animation: fb-buch-zurueck var(--b-dauer) cubic-bezier(0.45, 0.05, 0.3, 1) forwards}.fb-buch__blatt-vorn, .fb-buch__blatt-hinten{position: absolute;inset: 0;display: flex;backface-visibility: hidden}.fb-buch__blatt-hinten{transform: rotateY(180deg)}@keyframes fb-buch-vor{to{transform: rotateY(-180deg)}}@keyframes fb-buch-zurueck{to{transform: rotateY(180deg)}}  .fb-buch__band.ist-oeffnend::after{position: absolute;top: 0;right: 0;bottom: 0;width: 50%;border-radius: 0 10px 10px 0;background: repeating-linear-gradient(135deg, rgb(255 255 255 / 3%) 0 2px, transparent 2px 5px), var(--farbe, #27398a);content: "";transform-origin: left center;animation: fb-buch-deckel 0.8s cubic-bezier(0.45, 0.05, 0.3, 1) forwards;backface-visibility: hidden}@keyframes fb-buch-deckel{to{transform: rotateY(-180deg);visibility: hidden}}  .fb-buch__steuerung{display: flex;flex-wrap: wrap;gap: 12px 24px;justify-content: space-between;align-items: center;margin: 18px 46px 0 0}.fb-buch__zurueck-regal{min-height: 44px;padding: 8px 18px;border: 2px solid var(--b-blau);border-radius: 999px;background: #fff;color: var(--b-blau);font: 700 16px/1 "PT Sans", sans-serif;cursor: pointer}.fb-buch__blaettern{display: flex;gap: 14px;align-items: center;font-size: 15px}.fb-buch__vor-zurueck{width: 46px;height: 46px;border: 0;border-radius: 50%;background: var(--b-blau);color: #fff;font: 700 26px/1 "PT Sans", sans-serif;cursor: pointer}.fb-buch__vor-zurueck:disabled{background: #ced4da;color: #495057;cursor: default}  @media (max-width: 991px){.fb-buch__einband{width: 214px;height: 290px}.fb-buch__cover-titel{font-size: 16px}.fb-buch__papier{padding: 24px 22px 40px}.fb-buch__themen.ist-zweispaltig{columns: 1}}@media (max-width: 767px){.fb-buch__buecher{gap: 18px 14px;padding: 0}.fb-buch__einband{width: 158px;height: 250px;padding: 16px 12px 14px 24px;transform: none}.fb-buch__cover-form, .fb-buch__cover-umfang{font-size: 12px}.fb-buch__cover-titel{font-size: 14px;hyphens: manual}.fb-buch__heft{width: 100%;height: auto;transform: none}.fb-buch__heft-platz{width: 100%}  .fb-buch__band{grid-template-columns: 1fr;gap: 8px;margin-right: 0;padding: 58px 8px 8px}.fb-buch__laschen{top: 10px;right: 8px;left: 8px;display: flex;overflow-x: auto}.fb-buch__laschen button{border-radius: 10px 10px 0 0;text-align: center}.fb-buch__links .fb-buch__papier, .fb-buch__rechts .fb-buch__papier{border-radius: 6px;box-shadow: none}.fb-buch__steuerung{margin-right: 0}}@media (prefers-reduced-motion: reduce){.fb-buch__einband, .fb-buch__einband:is(:hover, :focus-visible), .fb-buch__heft{transform: none;transition: none}.fb-buch__band.ist-oeffnend::after{display: none}}