:root{color-scheme:dark;--ink:#10120f;--panel:#1b1e1a;--panel2:#242820;--ivory:#f5f1e7;--cream:#d5d1c5;--muted:#aeb2a8;--line:#62685c;--gold:#e0c887;--blue:#a8c9cc;--green:#a4bd99;--rose:#d4aea1;--serif:Georgia,'Times New Roman',serif;--sans:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ink);color:var(--ivory);font:16px/1.55 var(--sans)}
body::before{content:"";position:absolute;z-index:-1;inset:0 0 auto;height:700px;background:radial-gradient(ellipse at 72% 23%,#9f7d3430,transparent 47%)}
a{color:inherit;text-underline-offset:4px}
a:hover{color:var(--gold)}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
button{font:inherit}
[hidden]{display:none!important}
.wrap{width:min(100% - 80px,1440px);margin-inline:auto}
.skip-link{position:absolute;top:-100px;left:12px;z-index:1000;background:var(--ivory);color:var(--ink);padding:9px}
.skip-link:focus{top:12px}
.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}
.masthead{min-height:86px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #7b806f55}
.wordmark{text-decoration:none;font-weight:800;font-size:16px;letter-spacing:.18em}.wordmark span{color:var(--gold);margin-left:8px}
.edition,.eyebrow{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold)}
.edition{color:var(--muted)}
.hero{padding-block:46px 30px}
.hero .eyebrow{margin:0 0 24px}
h1,h2,h3,p{margin-top:0}
h1,h2{font-family:var(--serif);font-weight:400;letter-spacing:-.055em;line-height:1.04}
h1{font-size:clamp(68px,7vw,108px);margin-bottom:16px}
h1 em,h2 em{font-weight:400;color:var(--gold)}
.hero-dek{font-size:clamp(18px,1.8vw,23px);line-height:1.5;max-width:680px;color:var(--cream);margin-bottom:28px}
.primary-link,.home-link{display:inline-block;text-decoration:none;border-bottom:1px solid var(--gold);padding-bottom:10px;color:var(--gold);font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase}
.hero-rule{border-top:1px solid #8a8d7e70;margin-top:24px;padding-top:13px;display:flex;justify-content:space-between;max-width:740px;color:var(--muted);font-size:10px;letter-spacing:.14em;text-transform:uppercase}
.chapter-nav{background:#1a1d18;border-block:1px solid #85877b55}
.chapter-inner{display:flex;gap:50px}.chapter-inner a{padding:19px 0;text-decoration:none;font-size:12px;text-transform:uppercase;letter-spacing:.1em}
.chapter{padding-block:72px 95px;scroll-margin-top:20px}
.section-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,440px);gap:70px;align-items:end;margin-bottom:40px}
.section-head .eyebrow{margin-bottom:25px}
h2{font-size:clamp(48px,5.3vw,80px);margin-bottom:0}
.section-head>p{font-size:16px;line-height:1.7;color:var(--cream);margin-bottom:4px}
.track-legend{display:grid;grid-template-columns:repeat(3,1fr);margin-bottom:20px;border-block:1px solid #777d705e;padding:16px 0;gap:12px}
.track-key{font-size:12px;letter-spacing:.025em;color:var(--cream)}
.track-key i,.stack-key i{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:8px;background:var(--blue)}
.track-key.use i{background:var(--gold)}.track-key.society i{background:var(--rose)}
.era-nav{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:22px}
.era-button{border:1px solid #797d6f7a;background:transparent;color:var(--cream);padding:9px 14px;cursor:pointer;font-size:11px;letter-spacing:.08em}
.era-button:hover,.era-button[aria-pressed=true]{background:var(--gold);border-color:var(--gold);color:#181913}
.explorer{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,36%);gap:14px;align-items:start}
.timeline-plot{min-width:0}
.era-group{scroll-margin-top:20px;border:1px solid #83877960;background:#181b17;margin-bottom:10px}
.era-heading{display:flex;align-items:baseline;gap:18px;padding:15px 18px;border-bottom:1px solid #83877960}
.era-date{font-family:var(--serif);font-size:22px;color:var(--gold);white-space:nowrap}.era-heading h3{font:400 17px/1.25 var(--serif);margin:0;color:var(--ivory)}
.era-lanes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.era-lane{padding:0 7px 9px;border-right:1px solid #8387794d}.era-lane:last-child{border-right:0}
.lane-name{display:block;padding:8px 8px 10px;color:var(--muted);font-size:9px;letter-spacing:.1em;text-transform:uppercase}
.event-marker{display:block;width:100%;margin-bottom:6px;text-align:left;border:1px solid transparent;border-left:2px solid var(--blue);background:#242b29;color:var(--ivory);padding:10px;cursor:pointer;transition:background .18s,border-color .18s}
.event-marker.use{border-left-color:var(--gold);background:#2b291f}.event-marker.society{border-left-color:var(--rose);background:#2a2522}
.event-marker:hover,.event-marker[aria-pressed=true]{border-color:var(--ivory);background:#30362e}
.event-marker.featured{padding:13px 10px;min-height:84px;border-left-width:4px;box-shadow:inset 0 0 0 1px #d9c99a55}
.marker-date{display:block;font-size:10px;color:var(--muted);margin-bottom:5px;letter-spacing:.07em}
.marker-title{display:block;font:400 15px/1.38 var(--sans)}
.era-mobile{display:none}
.event-detail{position:sticky;top:16px;max-height:calc(100vh - 32px);overflow:auto;background:#2b2b23;border:1px solid #b3a27e94;box-shadow:0 22px 55px #0004}
.detail-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 22px;border-bottom:1px solid #b3a27e80;color:var(--gold);font-size:10px;letter-spacing:.12em;text-transform:uppercase}
.detail-close{display:none;background:none;border:0;color:var(--gold);cursor:pointer}
#detail-content{padding:30px 27px 32px}
.detail-kicker{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--blue);margin-bottom:23px}
.detail-kicker.use{color:var(--gold)}.detail-kicker.society{color:var(--rose)}
#detail-content h3{font:400 clamp(29px,2.8vw,43px)/1.1 var(--serif);letter-spacing:-.035em;margin-bottom:31px}
#detail-content p:not(.detail-kicker){font-size:14px;line-height:1.62;color:var(--cream);margin-bottom:17px}
#detail-content b{color:var(--ivory)}
.detail-source{display:block;border-top:1px solid #a9a58c66;padding-top:17px;margin-top:24px;font-size:12px;color:var(--gold)}
.reading-list{margin-top:28px;border-block:1px solid #878d7c80}
.reading-list summary{padding:19px 0;cursor:pointer;font:400 18px var(--serif);list-style:none}.reading-list summary::-webkit-details-marker{display:none}.reading-list summary span{font:13px var(--sans);color:var(--gold)}
.reading-list ol{columns:2;column-gap:45px;margin:0;padding:0 0 20px 24px}
.reading-list li{break-inside:avoid;font-size:13px;margin:0 0 9px;color:var(--muted)}
.reading-list li a{color:var(--ivory)}
.no-js-timeline{margin-top:28px;border-top:1px solid #878d7c80;padding-top:20px}
.no-js-timeline>p{color:var(--cream)}
.no-js-timeline ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.no-js-timeline li{background:var(--panel2);border-left:2px solid var(--gold);padding:22px}
.no-js-timeline h3{font:400 24px/1.2 var(--serif);margin:0 0 18px}
.no-js-timeline li p{font-size:14px;color:var(--cream);margin:0 0 12px}
.no-js-timeline li b{color:var(--ivory)}
.no-js-timeline .no-js-kicker{font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:var(--gold)}
.no-js-timeline li a{font-size:12px;color:var(--gold)}
.section-end{font-size:12px;color:var(--muted);margin:18px 0 0}
.weather-band{background:#171c1c;border-block:1px solid #4d6866}
.weather-thesis{font:400 clamp(23px,2.5vw,34px)/1.35 var(--serif);max-width:1000px;color:var(--ivory);margin:0 0 32px;padding:20px 0 25px;border-block:1px solid #70918a7d}
.weather-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.weather-panel{min-width:0;padding:25px 27px 26px;background:#202828;border:1px solid #6b858079;display:flex;flex-direction:column}
.adoption-panel{background:#29271e;border-color:#8e825c8c}.sentiment-panel{background:#2b2422;border-color:#92776c8c}.response-panel{background:#252b24;border-color:#74886d8c}
.panel-head{display:flex;justify-content:space-between;gap:10px;padding-bottom:14px;border-bottom:1px solid #b1b5a770;font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}
.weather-panel h3{font:400 clamp(27px,2.7vw,39px)/1.12 var(--serif);letter-spacing:-.035em;margin:24px 0 13px}
.weather-panel p{font-size:14px;line-height:1.55;color:var(--cream)}
.weather-panel a{font-size:12px;color:var(--gold);font-weight:700;margin-top:auto}
.weather-panel .chart-note{border-top:1px solid #a2ad9c5e;padding-top:13px;margin:22px 0 16px;font-size:12px;color:var(--muted)}
.horizon-chart{margin:24px 0 0;padding:15px 0 6px;border-block:1px solid #a2ad9c5e}
.axis{display:flex;justify-content:space-between;margin-left:145px;margin-right:48px;color:var(--muted);font-size:10px}
.horizon-row{display:grid;grid-template-columns:135px minmax(0,1fr) 38px;gap:10px;align-items:center;margin:18px 0;font-size:11px}
.horizon-row b{font-weight:400;color:var(--ivory);text-align:right}
.plot{position:relative;height:22px;background:repeating-linear-gradient(90deg,#8ba9a83d 0,#8ba9a83d 1px,transparent 1px,transparent 33.33%);border-bottom:1px solid #78959570}
.plot i{position:absolute;left:var(--left);width:var(--width);height:2px;top:11px;background:var(--blue)}
.plot i::before{content:"";position:absolute;left:var(--marker);top:-5px;width:12px;height:12px;border-radius:50%;background:var(--blue);transform:translateX(-50%)}
.adoption-stack{display:flex;height:75px;margin:36px 0 12px;font:400 23px var(--serif)}
.adoption-stack span{display:flex;align-items:center;justify-content:center;color:#12150f}
.daily{background:#dbc486}.sometimes{background:#a58c63}.never{background:#7f867a}
.stack-key{display:flex;gap:15px;flex-wrap:wrap;font-size:11px;color:var(--cream)}.stack-key i{border-radius:0;width:9px;height:9px}.stack-key i.daily{background:#dbc486}.stack-key i.sometimes{background:#a58c63}.stack-key i.never{background:#7f867a}
.sentiment-chart{margin-top:10px}
.sentiment-row{padding:12px 0;border-top:1px solid #ab9c9366}.sentiment-row>b{display:block;font-size:12px;color:var(--ivory);font-weight:400;margin-bottom:6px}
.sentiment-row>span{display:grid;grid-template-columns:35px 1fr 36px;gap:10px;align-items:center;font-size:10px;color:var(--muted);margin:3px 0}
.sentiment-row i{display:block;height:9px;background:#967b6b}.sentiment-row span:nth-of-type(2) i{background:#d4aea1}
.sentiment-row strong{font-size:11px;font-weight:400;color:var(--ivory)}
.response-list{list-style:none;padding:0;margin:8px 0 0;border-top:1px solid #8ba18063}
.response-list li{display:grid;grid-template-columns:70px 1fr;gap:12px;border-bottom:1px solid #8ba18063;padding:13px 0}
.response-list li>span{font:18px var(--serif);color:var(--green)}.response-list b{display:block;font-size:13px;font-weight:500}.response-list small{display:block;color:var(--muted);font-size:11px;margin-top:3px}
.source-links{display:flex;flex-wrap:wrap;gap:8px 18px}
.weather-foot{font-size:12px;color:var(--muted);margin:23px 0 0}
.bearings-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.bearing{background:#20231e;border-top:1px solid var(--gold);border-bottom:1px solid #7b806e8c}
.bearing summary{list-style:none;cursor:pointer;display:flex;flex-direction:column;min-height:320px;padding:23px}
.bearing summary::-webkit-details-marker{display:none}
.bearing summary span{font-size:10px;text-transform:uppercase;letter-spacing:.14em;color:var(--gold);margin-bottom:47px}
.bearing strong{font:400 clamp(25px,2.6vw,38px)/1.13 var(--serif);letter-spacing:-.03em}
.bearing small{font-size:11px;color:var(--cream);margin-top:auto;padding-top:25px}
.bearing-detail{padding:22px 23px;border-top:1px solid #8d917e6e;color:var(--cream);font-size:13px;line-height:1.6}
.bearing-detail p{margin-bottom:14px}.bearing-detail b{color:var(--ivory)}.bearing-detail a{color:var(--gold)}
.trace{border-top:1px solid #8d917e6e;padding-top:14px}
.closing{padding-block:100px;background:#29291f;border-top:1px solid #8a7b57}
.closing-grid{display:grid;grid-template-columns:1fr 1fr;gap:12%}.closing-grid>div:last-child{padding-top:50px}.closing-grid p:not(.eyebrow){color:var(--cream);line-height:1.7}.closing-grid b{color:var(--ivory)}
.footer{min-height:96px;display:flex;justify-content:space-between;gap:15px;align-items:center;color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.07em}
@media(max-width:1000px){.wrap{width:min(100% - 48px,1440px)}.explorer{grid-template-columns:minmax(0,1fr) 330px}.era-heading{display:block}.era-heading h3{margin-top:5px}.horizon-row{grid-template-columns:105px minmax(0,1fr) 34px}.axis{margin-left:115px;margin-right:44px}.bearings-grid{grid-template-columns:1fr}.bearing summary{min-height:210px}.bearing summary span{margin-bottom:23px}}
@media(max-width:760px){.wrap{width:min(100% - 32px,1440px)}.masthead{min-height:64px}.wordmark{font-size:13px}.edition{font-size:9px;text-align:right}.hero{min-height:0;padding-block:58px 48px}h1{font-size:clamp(58px,13vw,90px)}.hero-dek{font-size:17px}.hero-rule{margin-top:52px;font-size:8px}.chapter-inner{justify-content:space-between;gap:8px}.chapter-inner a{font-size:10px;line-height:1.25}.chapter{padding-block:68px 76px}.section-head{display:block;margin-bottom:28px}.section-head .eyebrow{margin-bottom:15px}h2{font-size:clamp(43px,10vw,65px)}.section-head>p{font-size:14px;margin-top:22px}.track-legend{display:block}.track-key{display:block;padding:3px 0}.era-nav{display:grid;grid-template-columns:repeat(3,1fr)}.era-button{padding:10px 5px;font-size:10px}.explorer{display:block}.era-group{margin:0}.era-heading{padding:14px}.era-date{font-size:20px}.era-heading h3{font-size:17px}.era-lanes{display:none}.era-mobile{display:block;padding:8px}.era-mobile .event-marker{margin:0 0 7px;padding:13px 15px;min-height:0}.era-mobile .marker-title{font-size:18px}.era-mobile .marker-date{font-size:11px}.event-detail{display:none;position:fixed;z-index:1002;inset:5vh 12px auto;max-height:90vh;overflow:auto}.event-detail.is-open{display:block}.detail-close{display:block;padding:8px;font-size:13px}.detail-backdrop:not([hidden]){display:block;position:fixed;z-index:1001;inset:0;background:#000b}body.detail-open{overflow:hidden}#detail-content{padding:23px 20px 28px}#detail-content h3{font-size:32px;margin-bottom:24px}.reading-list ol{columns:1}.weather-grid{grid-template-columns:1fr}.weather-panel{padding:22px}.weather-thesis{font-size:24px}.weather-panel h3{font-size:29px}.bearing summary{min-height:250px}.bearing strong{font-size:30px}.closing{padding-block:70px}.closing-grid{display:block}.closing-grid>div:last-child{padding-top:22px}.footer{display:block;padding-block:28px}.footer span{display:block;margin-bottom:8px}}
@media(max-width:390px){.era-nav{grid-template-columns:repeat(2,1fr)}.horizon-row{grid-template-columns:1fr auto;gap:3px;font-size:11px}.horizon-row .plot{grid-column:1/-1;grid-row:2}.axis{margin:0;font-size:10px}.panel-head{font-size:9px}.adoption-stack{font-size:19px}}
@media(max-width:1080px){
  .section-head{display:block}
  .section-head>p{max-width:650px;margin-top:22px}
  .explorer{display:block}
  .event-detail{display:none;position:fixed;z-index:1002;top:5vh;left:50%;right:auto;width:min(620px,calc(100% - 24px));max-height:90vh;transform:translateX(-50%);overflow:auto}
  .event-detail.is-open{display:block}
  .detail-close{display:block;flex:none;padding:8px;font-size:13px;white-space:nowrap}
  .detail-backdrop:not([hidden]){display:block;position:fixed;z-index:1001;inset:0;background:#000b}
  body.detail-open{overflow:hidden}
}
@media(max-width:760px){.hero{padding-block:42px 28px}.hero-rule{margin-top:28px}.chapter{padding-block:56px 68px}.no-js-timeline ol{grid-template-columns:1fr}}
@media(max-width:390px){.detail-head{padding:12px 14px}.detail-head span{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}