/* Kärnkraft Tidslinje v1.2 */
#kt-app{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:#0a0f1a;border-radius:12px;padding:32px 24px;color:#e2e8f0;overflow:hidden}
#kt-header{text-align:center;margin-bottom:32px}
#kt-header h3{font-size:1.6em;margin:0 0 8px;color:#f1f5f9;font-weight:800}
#kt-header p{color:#64748b;font-size:.9em;margin:0 0 20px}
#kt-filters{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.kt-cat-btn{background:rgba(30,41,59,.6);border:1px solid #334155;color:#94a3b8;padding:6px 16px;border-radius:20px;font-size:.8em;cursor:pointer;transition:all .2s;font-weight:500}
.kt-cat-btn:hover,.kt-cat-btn.active{background:var(--cat-color,#3b82f6);border-color:var(--cat-color,#3b82f6);color:#fff}
.kt-cat-btn[data-cat="all"]{--cat-color:#3b82f6}
#kt-decade-nav{display:flex;justify-content:center;gap:4px;flex-wrap:wrap}
.kt-decade{background:none;border:1px solid #1e293b;color:#475569;padding:4px 12px;border-radius:4px;font-size:.72em;cursor:pointer;transition:all .2s;font-weight:600}
.kt-decade:hover{border-color:#3b82f6;color:#3b82f6}
#kt-timeline{position:relative;max-width:900px;margin:0 auto;padding:20px 0}
#kt-line{position:absolute;left:50%;top:0;bottom:0;width:3px;background:linear-gradient(to bottom,#1e293b,#3b82f6,#22c55e);transform:translateX(-50%);border-radius:2px}
.kt-event{position:relative;width:45%;margin-bottom:32px;opacity:0;transform:translateY(20px);transition:opacity .5s,transform .5s}
.kt-event.visible{opacity:1;transform:translateY(0)}
.kt-event.kt-left{margin-right:auto;padding-right:40px;text-align:right}
.kt-event.kt-right{margin-left:auto;padding-left:40px;text-align:left}
.kt-dot{position:absolute;top:20px;width:14px;height:14px;border-radius:50%;border:3px solid #0a0f1a;z-index:2;transition:transform .3s}
.kt-left .kt-dot{right:-7px}
.kt-right .kt-dot{left:-7px}
.kt-event:hover .kt-dot{transform:scale(1.4)}
.kt-card{background:#111827;border:1px solid #1e293b;border-radius:10px;padding:18px 20px;transition:all .3s;cursor:pointer}
.kt-card:hover{border-color:#334155;background:#151d2e;transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.3)}
.kt-year{font-size:.8em;font-weight:700;letter-spacing:.05em;display:block;margin-bottom:4px}
.kt-card h4{margin:0 0 8px;font-size:1em;color:#f1f5f9;font-weight:700;line-height:1.3}
.kt-card p{margin:0;font-size:.85em;color:#94a3b8;line-height:1.55}
.kt-detail{margin-top:10px;padding-top:10px;border-top:1px solid #1e293b;font-size:.82em;color:#64748b;line-height:1.5;display:none}
.kt-card.expanded .kt-detail{display:block}
.kt-cat-tag{display:inline-block;padding:2px 10px;border-radius:10px;font-size:.68em;font-weight:600;margin-top:10px;text-transform:uppercase;letter-spacing:.05em}
@media(max-width:768px){
    #kt-line{left:20px}
    .kt-event{width:calc(100% - 50px) !important;margin-left:50px !important;margin-right:0 !important;padding-left:24px !important;padding-right:0 !important;text-align:left !important}
    .kt-dot{left:-37px !important;right:auto !important}
}