:root{--obk-red:#b81400;--obk-grey:#aeb2ae;--obk-text:#2e2e2e;--obk-soft:#f7f5f1;--obk-border:#e5e1da}
.obk-events-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin:28px 0}
.obk-event-card{background:#fff;border:1px solid var(--obk-border);border-radius:12px;overflow:hidden;box-shadow:0 8px 24px rgba(0,0,0,.04)}
.obk-event-card__image{display:block;aspect-ratio:16/10;overflow:hidden}.obk-event-card__image img{width:100%;height:100%;object-fit:cover;display:block}
.obk-event-card__body{padding:22px}.obk-event-card__body h3{margin:.35rem 0 .65rem;font-size:1.35rem}.obk-event-card__body h3 a{color:var(--obk-text);text-decoration:none}
.obk-event-meta{font-size:.95rem;color:#666}.obk-badge{display:inline-block;margin:0 0 10px;padding:5px 9px;border-radius:999px;font-size:.78rem;font-weight:700}.obk-badge--soldout{background:var(--obk-red);color:#fff}
.obk-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 16px;border:1px solid var(--obk-red);border-radius:8px;background:var(--obk-red);color:#fff!important;text-decoration:none!important;font-weight:700;cursor:pointer}.obk-button:hover,.obk-button:focus{filter:brightness(.92)}.obk-button--outline{background:#fff;color:var(--obk-red)!important}
.obk-event-details{margin-top:34px;padding-top:26px;border-top:1px solid var(--obk-border)}.obk-event-details__meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-bottom:20px;color:#555}.obk-event-details__meta strong{color:var(--obk-text)}
.obk-registration{margin-top:24px;padding:26px;border-radius:12px;background:var(--obk-soft);border:1px solid var(--obk-border)}.obk-registration h2{margin-top:0}.obk-registration__intro{max-width:70ch}
.obk-form__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px}.obk-form label{display:block;font-weight:700;margin-bottom:6px}.obk-form input[type=text],.obk-form input[type=email],.obk-form input[type=tel],.obk-form input[type=number],.obk-form textarea{box-sizing:border-box;width:100%;padding:11px 12px;border:1px solid #bbb;border-radius:7px;background:#fff;color:var(--obk-text);font:inherit}.obk-form input:focus,.obk-form textarea:focus{outline:3px solid rgba(184,20,0,.16);border-color:var(--obk-red)}
.obk-consent label{font-weight:400;display:flex;gap:9px;align-items:flex-start}.obk-consent input{margin-top:.3em}.obk-form__small{font-size:.85rem;color:#666}.obk-hp{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;overflow:hidden!important}
.obk-notice{margin:18px 0;padding:14px 16px;border-left:4px solid var(--obk-grey);background:#f7f7f7}.obk-notice--soldout,.obk-notice--error{border-left-color:var(--obk-red);background:#fff4f2}.obk-notice--success{border-left-color:#2e7d32;background:#f1f8f2}
@media(max-width:900px){.obk-events-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.obk-events-grid,.obk-form__grid{grid-template-columns:1fr}.obk-registration{padding:20px}}


/* Prominenter Startseiten-Teaser */
.obk-home-teaser{padding:clamp(48px,6vw,82px) 20px;background:#fff}
.obk-home-teaser__inner{width:min(1180px,100%);margin:0 auto}
.obk-home-teaser__heading{margin-bottom:24px}
.obk-home-teaser__kicker{margin:0 0 7px;color:var(--obk-red);font-size:.78rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
.obk-home-teaser__heading h2{margin:0;color:var(--obk-text);font-family:Georgia,"Times New Roman",serif;font-size:clamp(2rem,4vw,3.2rem);font-weight:500;line-height:1.05}
.obk-home-teaser__card{display:grid;grid-template-columns:minmax(300px,.9fr) minmax(0,1.1fr);overflow:hidden;border:1px solid var(--obk-border);border-radius:20px;background:#faf8f4}
.obk-home-teaser__image{display:block;min-height:350px;overflow:hidden}
.obk-home-teaser__image img{display:block;width:100%;height:100%;min-height:350px;object-fit:cover}
.obk-home-teaser__body{display:flex;flex-direction:column;justify-content:center;padding:clamp(28px,5vw,56px)}
.obk-home-teaser__body--full{grid-column:1/-1;max-width:820px}
.obk-home-teaser__date{margin:0 0 10px;color:var(--obk-red);font-weight:700}
.obk-home-teaser__body h3{margin:0 0 10px;font-family:Georgia,"Times New Roman",serif;font-size:clamp(1.8rem,3.5vw,2.8rem);line-height:1.08}
.obk-home-teaser__body h3 a{color:var(--obk-text);text-decoration:none}
.obk-home-teaser__location{margin:0 0 14px;color:#666}
.obk-home-teaser__excerpt{max-width:62ch;margin:8px 0 22px;color:#555;line-height:1.65}
.obk-home-teaser .obk-badge{align-self:flex-start;margin:0 0 8px}
.obk-badge--open{background:#fff;border:1px solid rgba(184,20,0,.24);color:var(--obk-red)}
.obk-home-teaser__actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:2px}
.obk-home-teaser__all{color:var(--obk-red);font-weight:700;text-decoration:none}
.obk-home-teaser__all:hover,.obk-home-teaser__all:focus{text-decoration:underline}
@media(max-width:820px){.obk-home-teaser__card{grid-template-columns:1fr}.obk-home-teaser__image,.obk-home-teaser__image img{min-height:280px;max-height:420px}.obk-home-teaser__body{padding:28px 24px 32px}}
@media(max-width:520px){.obk-home-teaser{padding:42px 10px}.obk-home-teaser__card{border-radius:15px}.obk-home-teaser__image,.obk-home-teaser__image img{min-height:240px}.obk-home-teaser__actions{align-items:stretch;flex-direction:column}.obk-home-teaser__actions .obk-button{width:100%}.obk-home-teaser__all{text-align:center}}

/* Aktionsübersicht als ruhiges, zugängliches Akkordeon */
.obk-event-accordion{display:grid;gap:18px;margin:28px 0 42px}
.obk-event-accordion__group{overflow:hidden;border:1px solid var(--obk-border);border-radius:16px;background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.035)}
.obk-event-accordion__summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;cursor:pointer;color:var(--obk-text);font-family:Georgia,"Times New Roman",serif;font-size:clamp(1.25rem,2.5vw,1.65rem);font-weight:600;list-style:none;transition:background .18s ease}
.obk-event-accordion__summary::-webkit-details-marker{display:none}
.obk-event-accordion__summary:hover,.obk-event-accordion__summary:focus-visible{background:#faf8f4}
.obk-event-accordion__summary:focus-visible{outline:3px solid rgba(184,20,0,.16);outline-offset:-3px}
.obk-event-accordion__summary:after{content:"+";margin-left:auto;color:var(--obk-red);font-family:Arial,sans-serif;font-size:1.4rem;font-weight:400;line-height:1}
.obk-event-accordion__group[open]>.obk-event-accordion__summary:after{content:"–"}
.obk-event-accordion__count{display:inline-flex;align-items:center;justify-content:center;min-width:30px;height:30px;padding:0 8px;border-radius:999px;background:#f2efea;color:#666;font-family:Arial,sans-serif;font-size:.8rem;font-weight:700}
.obk-event-accordion__content{padding:0 24px 24px;border-top:1px solid var(--obk-border)}
.obk-event-accordion__empty{margin:22px 0 0;color:#666}
.obk-event-list{display:grid;gap:0}
.obk-event-list__item{display:grid;grid-template-columns:220px minmax(0,1fr);gap:26px;padding:26px 0;border-bottom:1px solid var(--obk-border)}
.obk-event-list__item:last-child{padding-bottom:0;border-bottom:0}
.obk-event-list__image{display:block;align-self:start;aspect-ratio:4/3;overflow:hidden;border-radius:14px;background:#f3f0eb}
.obk-event-list__image img{display:block;width:100%;height:100%;object-fit:cover}
.obk-event-list__body{min-width:0;align-self:center}.obk-event-list__body--full{grid-column:1/-1}
.obk-event-list__date{margin:0 0 7px;color:var(--obk-red);font-size:.92rem;font-weight:700}
.obk-event-list__body h3{margin:0 0 8px;font-family:Georgia,"Times New Roman",serif;font-size:clamp(1.35rem,2.5vw,1.8rem);line-height:1.15}
.obk-event-list__body h3 a{color:var(--obk-text);text-decoration:none}.obk-event-list__body h3 a:hover,.obk-event-list__body h3 a:focus{color:var(--obk-red)}
.obk-event-list__location{margin:0 0 10px;color:#666}.obk-event-list__badges{margin-bottom:8px}
.obk-event-list__excerpt{max-width:72ch;margin:8px 0 12px;color:#555;line-height:1.6}
.obk-event-list__link{color:var(--obk-red);font-weight:700;text-decoration:none}.obk-event-list__link:hover,.obk-event-list__link:focus{text-decoration:underline}
.obk-badge--past{background:#efefed;color:#666}
.obk-event-list__item--past{opacity:.9}
@media(max-width:720px){.obk-event-accordion{gap:14px}.obk-event-accordion__summary{padding:17px 18px}.obk-event-accordion__content{padding:0 18px 18px}.obk-event-list__item{grid-template-columns:1fr;gap:16px;padding:20px 0}.obk-event-list__image{width:100%;max-height:320px}.obk-event-list__body--full{grid-column:auto}}