/* Shared long-form presentation; load after /marketing.css. */
.article-page{color-scheme:light}
.article-page .shell{min-height:100vh}
.article-page .article-hero,.article-page .content-wrap{width:min(1160px,calc(100% - 48px));margin-inline:auto}
.article-page .article-hero{padding:72px 0 38px}
.article-page .article-hero h1{max-width:1020px;margin:18px 0 22px;font-size:clamp(40px,5.4vw,68px);font-weight:700;letter-spacing:-.06em;line-height:1.06}
.article-page .eyebrow{margin:0 0 16px}
.article-page .dek{max-width:840px;margin:0;color:var(--muted);font-size:19px;line-height:1.7}
.article-page .meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px;color:var(--muted);font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.article-page .byline{display:grid;gap:5px;margin:14px 0 0;color:var(--muted);font-size:13px;line-height:1.6}
.article-page .byline strong{color:var(--ink);font-weight:650}
.article-page .content-wrap{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:28px;padding:16px 0 88px;align-items:start}
.article-page article{min-width:0;padding:clamp(24px,3.5vw,42px);border:1px solid var(--line);border-radius:13px;background:#fff}
.article-page article>:first-child{margin-top:0}
.article-page .featured-image{width:100%;margin:0 0 26px}
.article-page .featured-image img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:8px}
.article-page article h2{margin:46px 0 18px;font-size:clamp(26px,3vw,36px);line-height:1.16;letter-spacing:-.04em}
.article-page article h3{margin:32px 0 14px;font-size:23px;line-height:1.24;letter-spacing:-.025em}
.article-page article p,.article-page article ul,.article-page article ol{font-size:17px;line-height:1.8;color:#515365}
.article-page article p{margin:18px 0}
.article-page article ul,.article-page article ol{margin:16px 0 24px;padding-left:24px}
.article-page article li+li{margin-top:9px}
.article-page article a{color:var(--violet);text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}
.article-page article a:hover{color:var(--violet-dark)}
.article-page article strong{color:var(--ink)}
.article-page article blockquote{margin:30px 0;padding:22px 24px;border-left:3px solid var(--violet);border-radius:0 8px 8px 0;background:var(--lilac);color:var(--ink);font-size:20px;font-weight:600;line-height:1.6}
.article-page article blockquote p{color:var(--ink);margin:0;font-size:19px}
.article-page article table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:28px 0;font-size:14px;line-height:1.6}
.article-page article th,.article-page article td{border:1px solid var(--line);padding:13px;text-align:left;vertical-align:top;min-width:130px}
.article-page article th{color:var(--ink);background:#f1effa;font-weight:650}
.article-page article td{color:#515365}
.article-page .summary-box,.article-page .framework,.article-page .callout{margin:30px 0;padding:22px;border:1px solid #dedaf7;border-radius:10px;background:#f5f3ff}
.article-page article .summary-box h2,.article-page article .framework h2{margin:0 0 8px;font-size:19px}
.article-page article .summary-box p,.article-page article .framework p{margin:0;font-size:15px}
.article-page .summary-box ul{margin-bottom:0}
.article-page .framework-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px}
.article-page .framework-card{min-width:0;border:1px solid var(--line);border-radius:8px;background:#fff;padding:18px}
.article-page article .framework-card h3{font-size:20px;margin:0 0 10px}
.article-page .framework-card ul{font-size:15px;margin-bottom:0}
.article-page .principle{border-left-color:var(--violet)}
.article-page .definition{border-bottom:1px dotted var(--violet);color:var(--ink);cursor:help;position:relative;text-decoration:none}
.article-page .definition::after{content:attr(data-definition);display:none;position:absolute;bottom:calc(100% + 10px);left:0;z-index:20;width:280px;max-width:calc(100vw - 60px);padding:12px 14px;border:1px solid #dcd8f0;border-radius:8px;background:#fff;color:var(--ink);box-shadow:0 10px 30px rgba(32,32,56,.14);font-size:13px;font-weight:500;line-height:1.5}
.article-page .definition:hover::after,.article-page .definition:focus::after{display:block}
.article-page .article-cta{margin:40px 0 16px;padding:26px;border:1px solid #dedaf7;border-radius:10px;background:var(--lilac)}
.article-page article .article-cta h2{margin-top:0}
.article-page .article-cta p{margin-bottom:22px}
.article-page .cta-button{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;min-height:46px;border:0;border-radius:8px;background:var(--violet);color:white!important;font-size:14px;font-weight:700;text-decoration:none!important}
.article-page .cta-button:hover{background:var(--violet-dark)}
.article-page .callout p{margin:0}
.article-page .toc{position:sticky;top:100px;min-width:0;padding:20px;border:1px solid var(--line);border-radius:10px;background:#fff}
.article-page .toc h2{margin:0 0 12px;color:var(--muted);font-size:11px;letter-spacing:.1em;text-transform:uppercase}
.article-page .toc a{display:block;padding:8px 0 8px 12px;border-left:1px solid var(--line);color:var(--muted);font-size:13px;font-weight:500;line-height:1.5;text-decoration:none}
.article-page .toc a:hover{color:var(--violet);border-left-color:var(--violet)}
.article-page .sources{border-top:1px solid var(--line);margin-top:48px;padding-top:24px}
.article-page article .sources li{font-size:15px}
.article-page .listen-panel{display:block;margin:30px 0;padding:12px 16px;border:1px solid #dedaf7;border-radius:10px;background:#f5f3ff}
.article-page .listen-player{display:grid;grid-template-columns:58px minmax(0,1fr);grid-template-rows:22px 14px 18px;column-gap:14px;row-gap:0}
.article-page .listen-content{display:contents}
.article-page .listen-row{min-width:0}
.article-page article .listen-title-row h2{margin:0;font-size:16px;line-height:18px;letter-spacing:-.02em}
.article-page .listen-title-row{padding-bottom:4px}
.article-page .listen-button{display:inline-flex;align-items:center;justify-content:center;grid-row:1 / -1;align-self:stretch;width:58px;min-height:54px;height:auto;padding:0;border:0;border-radius:999px;background:var(--violet);color:#fff;cursor:pointer}
.article-page .listen-button:hover{background:var(--violet-dark)}
.article-page .listen-button:disabled,.article-page .speed-control select:disabled{opacity:.5;cursor:not-allowed}
.article-page .listen-button svg{width:18px;height:18px}
.article-page .listen-button .pause-icon{display:none}
.article-page .listen-button.is-playing .play-icon{display:none}
.article-page .listen-button.is-playing .pause-icon{display:block}
.article-page .listen-progress{min-width:0}
.article-page .progress-track{position:relative;height:6px;overflow:hidden;border-radius:999px;background:#dbd7f1;cursor:pointer}
.article-page .progress-fill{width:0%;height:100%;border-radius:inherit;background:var(--violet);transition:width 180ms linear}
.article-page .progress-track::after{content:"";position:absolute;top:50%;left:max(0px,calc(var(--progress,0%) - 6px));width:10px;height:10px;border-radius:999px;background:var(--violet);transform:translateY(-50%)}
.article-page .listen-meta-row{display:flex;align-items:center;justify-content:flex-start;gap:12px}
.article-page .audio-time{color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums;font-weight:650;letter-spacing:0;white-space:nowrap}
.article-page .audio-time-separator{color:var(--muted)}
.article-page .speed-control{display:inline-flex;align-items:center;color:var(--muted);font-size:12px;font-weight:650}
.article-page .speed-control select{min-width:60px;padding:0 3px;border:0;border-radius:3px;background:transparent;color:var(--ink);font:inherit;font-size:12px}
.article-page button:focus-visible,.article-page select:focus-visible,.article-page .definition:focus-visible{outline:3px solid #928cf2;outline-offset:3px}
.article-page .sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;padding:0;border:0}
@media(max-width:920px){.article-page .content-wrap{grid-template-columns:1fr}.article-page .toc{position:static;order:-1}.article-page .framework-grid{grid-template-columns:1fr}}
@media(max-width:760px){.article-page .article-hero,.article-page .content-wrap{width:calc(100% - 36px)}.article-page .article-hero{padding:52px 0 26px}.article-page .article-hero h1{font-size:clamp(36px,8.8vw,54px)}.article-page .dek{font-size:17px}.article-page article{padding:18px}.article-page article p,.article-page article ul,.article-page article ol{font-size:16px}.article-page .summary-box,.article-page .framework,.article-page .callout,.article-page .article-cta{padding:16px}.article-page .listen-panel{padding:10px 12px}.article-page .listen-player{grid-template-columns:50px minmax(0,1fr);grid-template-rows:20px 12px 16px;column-gap:12px}.article-page .listen-button{width:50px;min-height:48px}.article-page .listen-meta-row{gap:8px}.article-page .speed-control{white-space:nowrap}.article-page .definition::after{position:fixed;left:18px;right:18px;bottom:20px;width:auto;max-width:none}}
@media(prefers-reduced-motion:reduce){.article-page .progress-fill{transition:none}}