.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.hero-index a{line-height:23.4px}
.timeline-intro{padding:100px var(--pad) 60px;max-width:1680px;margin:auto}
.timeline-kicker{font:10px/1.6 var(--mono);letter-spacing:.04em;color:#ffffff9c;margin:0 0 30px}
.timeline-intro h2{font-size:clamp(46px,6.1vw,94px);font-weight:500;line-height:1;letter-spacing:-.055em;margin:0}
.timeline-intro h2 span{color:#ffffff83}
.timeline-toolbar{position:sticky;top:var(--header);margin:0 var(--pad);padding:14px 0;z-index:20;display:flex;gap:20px;align-items:center;background:var(--surface);border-block:1px solid #ffffff36;transition:background-color .6s;scroll-margin-top:0}
.timeline-toolbar button,.timeline-toolbar select,.timeline-toolbar summary{font-size:13px}
.timeline-toolbar summary{list-style:none;display:flex;align-items:center;gap:12px;cursor:pointer;min-height:32px}
.timeline-toolbar summary::-webkit-details-marker{display:none}
.timeline-toolbar summary>span{opacity:.65}
.timeline-toolbar summary strong{font-weight:500}
.timeline-toolbar summary i{font-style:normal;font-size:19px;transition:transform .25s}
#type-filter[open] summary i{transform:rotate(45deg)}
#type-filter{position:relative;flex-shrink:0}
.type-options{position:absolute;left:0;top:calc(100% + 16px);width:330px;background:#f1f1ed;color:#131b2a;padding:16px 20px 12px;border:1px solid #fff5;box-shadow:0 24px 60px #0003;animation:filter-in .18s ease-out}
.filter-actions{display:flex;justify-content:space-between;border-bottom:1px solid #0002;padding-bottom:13px;margin-bottom:8px}
.filter-actions button{padding:4px 0;color:#051daa}
.type-options fieldset{border:0;padding:0;margin:0}
.type-options label{display:flex;gap:12px;align-items:center;min-height:42px;cursor:pointer}
.type-options label:hover{color:#051daa}
.type-options input{accent-color:#051daa;width:16px;height:16px;margin:0}
.type-options small{margin-left:auto;font:10px var(--mono);color:#777d88}
.filter-done{display:flex;justify-content:space-between;width:100%;border-top:1px solid #0002;padding:15px 0 3px;margin-top:10px;color:#051daa}
.sort-control{border-left:1px solid #fff3;padding-left:18px;flex-shrink:0}
.sort-control select{color:white;background:transparent;border:0;cursor:pointer;font-family:var(--sans);padding:7px 21px 7px 0;min-height:34px;color-scheme:dark}
.sort-control option{background:#07165c;color:white}
.layout-switch{display:flex;gap:2px;border:1px solid #ffffff38;padding:2px;border-radius:4px;flex-shrink:0}
.layout-switch button{display:flex;align-items:center;justify-content:center;gap:7px;min-height:30px;padding:4px 9px;border-radius:2px;color:#ffffff80;transition:background-color .15s,color .15s}
.layout-switch button[aria-pressed=true]{background:#ffffffed;color:#061754}
.layout-switch button:not([aria-pressed=true]):hover{color:#fff;background:#ffffff14}
.layout-switch svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.2;flex-shrink:0}
.timeline-count{margin-left:auto;font:11px var(--mono);color:#ffffff99;white-space:nowrap}
.filter-reset{font-size:11px!important;white-space:nowrap;color:#ffffffb0}
.filter-reset:hover{text-decoration:underline;text-underline-offset:4px}
.timeline-year{padding:0 var(--pad);max-width:1680px;margin:auto;scroll-margin-top:65px}
.year-heading{height:260px;position:relative;display:flex;align-items:center;gap:24px;overflow:visible}
.year-heading h2{font-size:clamp(90px,10vw,154px);font-weight:500;line-height:1;letter-spacing:-.06em;margin:0;position:relative}
.year-count{font:10px var(--mono);color:#ffffff89;align-self:center;margin-top:70px}
.year-signal{position:absolute;right:10%;top:30%;width:38%;height:45%;pointer-events:none}
.year-signal i{position:absolute;left:0;top:50%;width:100%;height:1px;background:linear-gradient(90deg,#fff6,#fff1);transform-origin:left}
.year-signal i:nth-child(2){transform:rotate(18deg)}
.year-signal i:nth-child(3){transform:rotate(-18deg)}
.year-signal i:after,.year-signal:before{content:'';position:absolute;right:0;top:-2px;width:4px;height:4px;background:#fff8}
.year-signal:before{left:-3px;top:calc(50% - 3px);width:6px;height:6px;background:white}
.year-events{position:relative}
.chronology-card{min-width:0;min-height:0;margin:0;isolation:isolate;overflow:visible}
.event-stamp{grid-column:1/-1;display:flex;justify-content:space-between;gap:10px;align-items:center;border-bottom:1px solid #ffffff20;padding:0 18px;min-height:40px;font:10px var(--mono)}
.event-stamp time{letter-spacing:.01em;white-space:nowrap}
.type-tag{font:10px var(--sans);color:#ffffffa8;padding:9px 0;display:flex;align-items:center;gap:7px;text-align:right}
.type-tag span{font-size:13px;opacity:0;transform:translate(-4px,4px);transition:.2s}
.type-tag:hover span,.type-tag:focus-visible span{opacity:1;transform:none}
.event-dot{position:absolute;left:-4px;top:17px;width:6px;height:6px;background:var(--surface);border:1px solid #ffffffa0;transition:background-color .2s,box-shadow .2s}
.chronology-card .feature-copy{min-width:0;min-height:0;padding:20px 19px;align-items:stretch}
.chronology-card .feature-copy:before{display:none}
.chronology-card .feature-copy h3{font-size:24px;line-height:1.14;letter-spacing:-.035em;margin:0 0 12px;overflow-wrap:anywhere}
.card-title{display:block;font:inherit;letter-spacing:inherit;text-align:left;padding:0;color:inherit;line-height:inherit}
.card-title:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}
.chronology-card .feature-copy p{font-size:16px;line-height:1.5;text-wrap:pretty;letter-spacing:-.015em}
.card-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:22px}
.chronology-card .open-event{margin:0;white-space:nowrap;font-size:10px;padding:7px 11px;gap:12px;flex-shrink:0}
.chronology-card .event-meta{margin:0;padding:0;font:9px/1.5 var(--mono);text-align:right;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:48%;color:#ffffff78}
.chronology-card .feature-media{min-height:0;overflow:hidden;isolation:isolate}
.chronology-card .feature-media>img{object-fit:contain;background:#ffffff06}
.chronology-card .feature-media>video{object-fit:cover}
.chronology-card .feature-media:after{width:27px;height:27px;font-size:15px;right:13px;bottom:13px}
[data-layout="gallery"] .year-events{display:grid;grid-template-columns:repeat(var(--gallery-count),var(--gallery-column-width));gap:var(--gallery-gap);align-items:stretch}
[data-layout="gallery"] .chronology-card{display:flex;flex-direction:column;min-height:260px}
[data-layout="gallery"] .chronology-card .feature-copy{flex:1}
[data-layout="gallery"] .chronology-card .feature-copy h3{font-size:24px;min-height:2.28em;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
[data-layout="gallery"] .chronology-card .feature-copy p{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;min-height:4.5em}
[data-layout="gallery"] .chronology-card .feature-media{aspect-ratio:16/10;flex-shrink:0;border-bottom:1px solid #ffffff20}
[data-layout="list"] .year-events{display:grid;gap:20px}
[data-layout="list"] .year-events:before{content:'';position:absolute;left:-24px;top:0;bottom:0;width:1px;background:#ffffff28}
[data-layout="list"] .chronology-card{display:grid;grid-template-columns:43% 57%;grid-template-rows:40px 1fr;min-height:0}
[data-layout="list"] .chronology-card .event-dot{left:-27px}
[data-layout="list"] .chronology-card .event-stamp{padding-inline:24px}
[data-layout="list"] .chronology-card .feature-copy{grid-row:2;grid-column:1;padding:24px}
[data-layout="list"] .chronology-card .feature-media{grid-row:2;grid-column:2;min-height:300px}
[data-layout="list"] .chronology-card.has-media .feature-copy{min-height:300px}
[data-layout="list"] .chronology-card.type-only .feature-copy{grid-column:1/-1;display:grid;grid-template-columns:minmax(160px,.65fr) minmax(0,1fr);gap:12px 30px}
[data-layout="list"] .chronology-card.type-only h3{grid-row:1/3;margin:0}
[data-layout="list"] .chronology-card.type-only .card-footer{grid-column:2;padding-top:8px}
[data-layout="list"] .chronology-card .feature-copy p{font-size:18px}
.timeline-year+.timeline-year{padding-top:40px}
.timeline-empty{padding:100px 24px 150px;text-align:center}
.timeline-empty>span{font-size:70px;font-weight:500;opacity:.5}
.timeline-empty h3{font-weight:500;font-size:24px}
.timeline-empty button{padding:12px 20px;border:1px solid #fff6;border-radius:30px}
.chapter-rail{width:112px}
.chapter-rail a{line-height:27px}
.type-selected{color:white!important}
.hero-index .type-selected:after{opacity:1}
.year-heading:focus-visible{outline:0}
#timeline-feed{min-height:260px}
#menu-links a>small{color:#fff}
@keyframes filter-in{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
@media(min-width:1680px){.timeline-toolbar{max-width:1228px;margin-inline:auto}}
@media(max-width:1199px){.timeline-toolbar{gap:13px}.layout-switch button{padding-inline:7px}.sort-control{padding-left:13px}.filter-reset{display:none}}
@media(max-width:940px){
 .timeline-intro{padding:70px 24px 40px}.timeline-intro h2{font-size:clamp(42px,8.5vw,70px)}
 .timeline-toolbar{margin:0;padding:10px 24px;gap:16px}.timeline-toolbar summary{gap:8px}.sort-control{padding-left:14px}.timeline-count{font-size:10px}
 .type-options{position:fixed;left:16px;right:16px;top:calc(var(--header) + 57px);width:auto;max-height:calc(100svh - var(--header) - 85px);overflow:auto}.type-options label{min-height:46px}
 .year-heading{height:230px;gap:16px}.year-heading h2{font-size:110px}.year-count{font-size:9px;margin-top:45px}.year-signal{right:0;width:40%;opacity:.45}
 .timeline-year{scroll-margin-top:56px}.timeline-year+.timeline-year{padding-top:25px}
 [data-layout="list"] .year-events:before{left:-10px}[data-layout="list"] .chronology-card .event-dot{left:-13px}
 [data-layout="list"] .chronology-card .feature-copy{padding:22px 20px}
 [data-layout="list"] .chronology-card .feature-media{min-height:260px}
 [data-layout="list"] .chronology-card .feature-copy p{font-size:17px}
 .chronology-card .feature-media:after{opacity:.65}.type-tag span{opacity:.6}.timeline-empty h3{font-size:20px}
}
@media(max-width:640px){
 .timeline-toolbar{gap:10px;padding:9px 20px}.timeline-toolbar summary>span{display:none}.timeline-toolbar summary strong{max-width:90px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.timeline-toolbar button,.timeline-toolbar select,.timeline-toolbar summary{font-size:12px}
 .sort-control{padding-left:10px}.sort-control select{padding-right:4px}.layout-switch{margin-left:auto}.layout-switch button{width:30px;padding:4px;min-height:28px}.layout-switch button span{display:none}.layout-switch svg{width:15px;height:15px}.timeline-count{position:absolute;right:20px;bottom:-27px;font-size:9px;pointer-events:none}
 .year-heading{height:200px}.year-heading h2{font-size:100px}.year-count{font-size:8px}.year-signal{width:33%;right:0}
 [data-layout="gallery"]{--gallery-column-width:calc(100vw - 76px);--gallery-gap:16px}
 [data-layout="gallery"] .chronology-card{min-height:0}
 [data-layout="gallery"] .chronology-card .feature-copy h3{min-height:0;font-size:24px}
 [data-layout="gallery"] .chronology-card .feature-copy p{min-height:0;-webkit-line-clamp:3}
 .chronology-card .feature-copy{padding:20px}.card-footer{padding-top:19px}.chronology-card .feature-copy h3{margin-bottom:10px}.chronology-card .feature-copy p{font-size:16px}
 .event-stamp{padding-inline:20px;min-height:39px}.event-dot{top:16px}
 [data-layout="list"] .chronology-card{grid-template-columns:1fr;grid-template-rows:auto auto auto}
 [data-layout="list"] .chronology-card .feature-copy{grid-row:3;grid-column:1;min-height:0}
 [data-layout="list"] .chronology-card .feature-media{grid-row:2;grid-column:1;min-height:0;aspect-ratio:16/10}
 [data-layout="list"] .chronology-card.has-media .feature-copy{min-height:0}
 [data-layout="list"] .chronology-card.type-only .feature-copy{display:flex;gap:0;grid-row:2}
 [data-layout="list"] .chronology-card.type-only h3{margin:0 0 10px}
 [data-layout="list"] .chronology-card.type-only .card-footer{padding-top:19px}
 [data-layout="list"] .chronology-card .feature-copy p{font-size:16px}
}
@media(max-width:420px){.timeline-intro{padding-inline:20px}.timeline-toolbar{padding-inline:16px;gap:9px}.timeline-toolbar summary strong{max-width:85px}.timeline-count{right:20px}.sort-control{padding-left:9px}.year-heading{height:190px}.year-heading h2{font-size:90px}.timeline-kicker{font-size:9px}.event-stamp{padding-inline:18px}.type-tag{gap:5px}.chronology-card .feature-copy{padding:18px}.chronology-card .event-meta{font-size:8px}}
@media(max-width:360px){.timeline-toolbar{gap:7px}.timeline-toolbar summary strong{max-width:74px}.sort-control{padding-left:7px}.layout-switch button{width:27px}.chronology-card .feature-copy h3,[data-layout="gallery"] .chronology-card .feature-copy h3{font-size:23px}.chronology-card .feature-copy p{font-size:15px}.year-signal{width:24%;opacity:.3}}
@media(prefers-reduced-motion:reduce){.type-options{animation:none}.layout-switch button{transition:none}}
.paused .type-options,.motion-disabled .type-options{animation:none;opacity:1;transform:none}
.paused .layout-switch button,.motion-disabled .layout-switch button{transition:none}

/* A single horizontal plane carries every year and every technology column. */
[data-layout="gallery"]{--gallery-column-width:300px;--gallery-gap:18px;--gallery-count:7;--gallery-window:100%;--gallery-header-height:76px}
.gallery-header,.gallery-scroll{margin-inline:var(--pad);max-width:1228px;min-width:0}
.gallery-header{position:sticky;top:calc(var(--header) + var(--timeline-toolbar-height,66px));z-index:19;background:var(--surface);border-bottom:1px solid #ffffff38;transition:background-color .6s}
.gallery-navigation{height:30px;display:grid;grid-template-columns:28px minmax(0,1fr) 28px;gap:12px;align-items:center}
.gallery-navigation>button{height:28px;padding:0;font:20px/1 var(--sans);color:#fff;transition:opacity .15s}
.gallery-navigation>button:disabled{opacity:.22;cursor:default}
.gallery-range{appearance:none;-webkit-appearance:none;width:100%;height:26px;margin:0;padding:0;background:transparent;cursor:ew-resize;color:white}
.gallery-range::-webkit-slider-runnable-track{height:2px;background:#ffffff2d;border:0}
.gallery-range::-webkit-slider-thumb{appearance:none;-webkit-appearance:none;width:48px;height:6px;margin-top:-2px;border:0;border-radius:0;background:#fff}
.gallery-range::-moz-range-track{height:2px;background:#ffffff2d;border:0}
.gallery-range::-moz-range-thumb{width:48px;height:6px;border:0;border-radius:0;background:#fff}
.gallery-range:disabled{opacity:.25;cursor:default}
.gallery-header-viewport{overflow:hidden;min-width:0}
.gallery-header-track{display:grid;grid-template-columns:repeat(var(--gallery-count),var(--gallery-column-width));gap:var(--gallery-gap);width:max-content;min-width:100%;will-change:transform}
.gallery-type-heading{position:relative;display:flex;justify-content:space-between;align-items:center;min-width:0;height:45px;padding:0 17px 0 0;text-align:left;border-top:1px solid #ffffff14;font:20px/1 var(--sans);letter-spacing:-.025em;white-space:nowrap}
.gallery-type-heading small{font:10px/1 var(--mono);color:#ffffff7d}
.gallery-type-heading[aria-current=true]:after{content:'';position:absolute;bottom:-1px;left:0;width:32px;height:2px;background:white}
.gallery-scroll{overflow-x:auto;overflow-y:hidden;overscroll-behavior-x:contain;scrollbar-width:none;-webkit-overflow-scrolling:touch;touch-action:pan-x pan-y}
.gallery-scroll::-webkit-scrollbar{display:none}
.gallery-track{width:max-content;min-width:100%;padding-bottom:4px}
[data-layout="gallery"] .timeline-year{padding-inline:0;margin:0;max-width:none;width:calc(var(--gallery-count) * var(--gallery-column-width) + (var(--gallery-count) - 1) * var(--gallery-gap));min-width:var(--gallery-window);scroll-margin-top:calc(var(--timeline-toolbar-height,66px) + var(--gallery-header-height))}
[data-layout="gallery"] .year-heading{position:sticky;left:0;width:var(--gallery-window);max-width:100%;height:235px}
[data-layout="gallery"] .year-events{width:max-content;min-width:100%}
.gallery-column{position:relative;display:flex;flex-direction:column;gap:18px;min-width:0;min-height:100px}
.gallery-column:before{content:'';position:absolute;top:0;bottom:0;left:0;width:1px;background:#ffffff13;pointer-events:none}
.gallery-column-empty{display:block;min-height:30px;border-top:1px solid #ffffff20}
[data-layout="gallery"] .chronology-card{min-height:0;flex-shrink:0}
[data-layout="gallery"] .chronology-card .feature-copy h3{min-height:0}
[data-layout="gallery"] .chronology-card .feature-copy p{min-height:0}
[data-layout="gallery"] .chronology-card .event-dot{left:-1px;width:4px}
[data-layout="gallery"] .chronology-card .card-footer{padding-top:22px}
[data-layout="gallery"] .chronology-card .type-tag{font-size:9px}
@media(min-width:1680px){.gallery-header,.gallery-scroll{margin-inline:auto}}
@media(max-width:940px){[data-layout="gallery"] .year-heading{height:215px}.gallery-type-heading{font-size:19px}}
@media(max-width:640px){
 [data-layout="gallery"]{--gallery-column-width:calc(100vw - 76px);--gallery-gap:16px}
 [data-layout="gallery"] .year-heading{height:185px}
 .gallery-type-heading{font-size:19px;padding-right:14px}
 .gallery-column{gap:14px}
 [data-timeline-view="gallery"] .timeline-count{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
 [data-layout="gallery"] .chronology-card .feature-copy h3{font-size:23px}
 [data-layout="gallery"] .chronology-card .feature-copy p{font-size:15px}
}
@media(max-width:360px){[data-layout="gallery"] .chronology-card .feature-copy{padding:16px 14px}[data-layout="gallery"] .event-stamp{padding-inline:14px}[data-layout="gallery"] .chronology-card .feature-copy h3{font-size:21px}.gallery-type-heading{font-size:18px}.gallery-navigation{gap:8px}}
@media(prefers-reduced-motion:reduce){.gallery-header,.gallery-navigation>button{transition:none}}
.paused .gallery-header,.motion-disabled .gallery-header,.paused .gallery-navigation>button,.motion-disabled .gallery-navigation>button{transition:none}