:root{--paper:#f7f7f5;--surface:#fff;--ink:#191b1d;--muted:#73777b;--line:#e7e8e6;--yellow:#ffdc58;--coral:#e46b4e;--soft:#f1f2ef;--blue:#dbeaf0;--shadow:0 16px 44px rgba(30,34,35,.06);font-family:Arial,"Helvetica Neue",system-ui,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px}button,input{font:inherit}button{cursor:pointer}a{color:inherit}img{display:block;max-width:100%}::selection{background:var(--yellow);color:var(--ink)}
.boot{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;color:var(--muted)}.boot-mark{position:relative;display:grid;place-items:center;width:64px;height:64px;border-radius:17px;background:var(--ink);color:#fff;font:bold 52px Georgia,serif;line-height:1}.boot-mark span{position:absolute;width:13px;height:4px;right:9px;top:31px;background:var(--coral)}.boot-line{height:3px;width:88px;border-radius:10px;background:linear-gradient(90deg,var(--ink) 0 30%,var(--yellow) 30% 100%);animation:loading 1.2s ease-in-out infinite alternate}.boot p{font-size:13px;margin:0}@keyframes loading{to{opacity:.35;transform:scaleX(.72)}}
.shell{max-width:1450px;margin:auto;min-height:100dvh;display:grid;grid-template-columns:224px minmax(0,1fr) 252px;column-gap:35px;padding:0 38px}.side,.rail{position:sticky;top:0;height:100dvh;align-self:start}.side{border-right:1px solid var(--line);padding:26px 20px 24px 0;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;width:max-content}.brand-icon{width:40px;height:40px;border-radius:11px}.brand-name{font-size:25px;font-weight:800;letter-spacing:-1.25px}.brand-name em{color:var(--coral);font-style:normal}.side-nav{display:grid;gap:5px;margin-top:46px}.nav-item{border:0;background:transparent;color:#4c5153;display:flex;align-items:center;gap:14px;text-align:left;padding:13px 15px;border-radius:14px;font-size:15px;font-weight:700;transition:background .16s,color .16s}.nav-item:hover{background:#efefec}.nav-item.active{background:var(--yellow);color:var(--ink)}.nav-item svg,.icon-button svg,.action svg,.tab-button svg,.back-button svg{width:20px;height:20px;stroke-width:1.9;flex:none}.nav-count{margin-left:auto;font-size:11px;padding:3px 7px;background:#ffffffa8;border-radius:10px}.side-bottom{margin-top:auto;border-top:1px solid var(--line);padding:20px 10px 0}.side-bottom .tiny{font-size:11px;letter-spacing:.1em;color:var(--muted);font-weight:800}.side-bottom p{font-size:13px;line-height:1.45;color:#5e6465;margin:10px 0 0}.side-bottom strong{color:var(--ink)}
.main{min-width:0;padding:22px 0 96px}.main-top{height:40px;display:flex;align-items:center;justify-content:space-between;margin-bottom:42px}.today-meta,.eyebrow{font-size:11px;letter-spacing:.11em;text-transform:uppercase;font-weight:800;color:#767a7c}.main-top-actions{display:flex;gap:8px}.icon-button{height:40px;width:40px;border-radius:13px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;color:var(--ink);transition:transform .16s,background .16s}.icon-button:hover{transform:translateY(-2px);background:var(--yellow)}.mobile-brand{display:none}.page-title{font-size:clamp(34px,4.2vw,60px);letter-spacing:-.055em;line-height:1.03;margin:0 0 12px;font-weight:800}.page-title .underline{box-shadow:inset 0 -.21em var(--yellow)}.page-subtitle{color:#696e70;font-size:15px;line-height:1.5;margin:0 0 28px;max-width:620px}
.catchup{display:flex;align-items:center;gap:14px;background:#ecebe6;border-radius:16px;padding:14px 15px;margin:24px 0 34px}.catchup-icon{height:36px;width:36px;border-radius:11px;background:#fff;display:grid;place-items:center;font-size:19px;flex:none}.catchup-copy{flex:1;min-width:0}.catchup-copy strong{display:block;font-size:13px}.catchup-copy small{display:block;color:#73777b;font-size:12px;margin-top:2px}.text-button{border:0;background:transparent;font-weight:800;font-size:12px;white-space:nowrap;padding:9px 3px}.text-button:hover{text-decoration:underline}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin:35px 0 16px}.section-head h2{font-size:23px;letter-spacing:-.035em;margin:0}.section-head span{font-size:12px;color:var(--muted)}
.hero-card{overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);position:relative}.hero-media{height:290px;overflow:hidden;background:#e9e6dc;position:relative}.hero-media img{height:100%;width:100%;object-fit:cover;transition:transform .5s}.hero-card:hover .hero-media img{transform:scale(1.035)}.hero-media.placeholder{display:grid;place-items:center;background:linear-gradient(145deg,#f6e7c4,#e6e7e2)}.hero-media.placeholder[data-category="ai"]{background:linear-gradient(145deg,#dedbe8,#d3e7e3)}.hero-media.placeholder[data-category="neuro"]{background:linear-gradient(145deg,#d8e2ef,#e6dce7)}.hero-media.placeholder[data-category="bio"]{background:linear-gradient(145deg,#e5ead9,#d9e8dc)}.hero-glyph{font-weight:900;font-size:clamp(95px,15vw,180px);letter-spacing:-.1em;color:#15191b1a;user-select:none}.hero-body{padding:24px 27px 23px}.story-meta{display:flex;align-items:center;flex-wrap:wrap;gap:8px;color:#6d7273;font-size:12px;font-weight:700}.category-dot{width:7px;height:7px;border-radius:50%;background:var(--coral)}.story-meta .sep{color:#bcc0c0}.unread-dot{width:7px;height:7px;background:#ed6d50;border-radius:50%;margin-left:2px}.hero-title{font-size:clamp(25px,3vw,36px);line-height:1.12;letter-spacing:-.048em;font-weight:800;margin:13px 0}.hero-lead{font-size:15px;line-height:1.52;color:#575d5f;margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card-foot{display:flex;align-items:center;justify-content:space-between;gap:14px}.read-link{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:800;text-decoration:none}.read-link svg{width:16px;height:16px;transition:transform .16s}.read-link:hover svg{transform:translateX(3px)}.save-button{border:1px solid var(--line);background:#fff;width:38px;height:38px;border-radius:12px;display:grid;place-items:center}.save-button.saved{background:var(--yellow);border-color:var(--yellow)}.save-button svg{height:19px;width:19px}.save-button:hover{border-color:var(--ink)}
.filters{display:flex;align-items:center;gap:8px;overflow:auto;scrollbar-width:none;padding:1px 0 4px;margin:4px 0 16px}.filters::-webkit-scrollbar{display:none}.filter{white-space:nowrap;border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 15px;font-size:12px;font-weight:800;color:#5f6566}.filter.active{background:var(--ink);border-color:var(--ink);color:#fff}.story-list{display:grid;gap:10px}.story-card{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:15px 17px;min-height:132px;transition:transform .16s,box-shadow .16s}.story-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.story-card-body{flex:1;min-width:0}.story-card .story-meta{font-size:11px}.story-card h3{font-size:18px;letter-spacing:-.025em;line-height:1.2;margin:9px 0 7px;font-weight:800}.story-card p{margin:0;color:#707577;font-size:12px;line-height:1.42;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.story-card-image{width:112px;height:96px;flex:none;border-radius:13px;object-fit:cover;background:#e8eae7}.story-card-placeholder{width:112px;height:96px;flex:none;border-radius:13px;display:grid;place-items:center;font-size:27px;font-weight:900;color:#3b433c;background:#e6eee3}.story-card-placeholder[data-category="ai"]{background:#e9e5f5;color:#56507a}.story-card-placeholder[data-category="neuro"]{background:#e2eaf8;color:#486182}.story-card-placeholder[data-category="products"]{background:#fff1cf;color:#8b6b28}.story-card-actions{display:flex;align-items:center;justify-content:space-between;margin-top:11px}.story-card-actions .save-button{height:32px;width:32px;border-radius:10px}.story-card-actions .save-button svg{height:16px;width:16px}.story-card-actions .read-link{font-size:12px}.day-label{font-size:12px;font-weight:800;color:#7b8080;letter-spacing:.045em;margin:24px 0 9px}.empty{padding:58px 32px;border-radius:20px;background:#fff;border:1px dashed #d9dbd7;text-align:center}.empty-symbol{font-size:44px;line-height:1;margin-bottom:14px}.empty h2{font-size:22px;margin:0 0 8px}.empty p{color:var(--muted);font-size:14px;line-height:1.5;max-width:370px;margin:0 auto 18px}.primary-button{border:0;border-radius:12px;background:var(--yellow);color:var(--ink);padding:12px 17px;font-weight:800;font-size:13px;display:inline-flex;align-items:center;gap:9px}.primary-button:hover{filter:brightness(.97)}
.rail{padding:34px 0 24px 0}.rail-block{background:#fff;border:1px solid var(--line);border-radius:18px;padding:17px;margin-bottom:14px}.rail-block h3{margin:0 0 12px;font-size:16px;letter-spacing:-.025em}.rail-block p{font-size:12px;line-height:1.5;color:var(--muted);margin:0}.rail-label{font-size:10px;font-weight:900;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;margin-bottom:11px}.rail-topic{display:flex;align-items:center;gap:10px;text-decoration:none;padding:9px 0;border-top:1px solid #f0f0ee;font-weight:800;font-size:12px}.rail-topic:first-of-type{border-top:0}.rail-topic-mark{height:25px;width:25px;border-radius:8px;background:var(--yellow);display:grid;place-items:center;font-size:11px}.rail-topic span:last-child{margin-left:auto;color:var(--muted);font-weight:500}.rail-save{background:#fff2ce;border:0}.rail-save .number{font-size:35px;font-weight:900;line-height:1;letter-spacing:-.07em;margin:12px 0 6px}.rail-save button{margin-top:14px;border:0;background:transparent;font-size:12px;font-weight:800;padding:0}.rail-save button:hover{text-decoration:underline}.rail-footer{font-size:11px;line-height:1.55;color:#8c9290;padding:10px 5px}
.topics-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.topic-tile{border:1px solid var(--line);background:#fff;border-radius:20px;min-height:215px;padding:20px;display:flex;flex-direction:column;position:relative;overflow:hidden}.topic-tile:nth-child(1){background:#e9e7fb}.topic-tile:nth-child(2){background:#e9efdc}.topic-tile:nth-child(3){background:#e6edf7}.topic-tile:nth-child(4){background:#fff0d4}.topic-tile:nth-child(5){background:#eee9e6}.topic-big{font-weight:900;font-size:64px;letter-spacing:-.1em;line-height:1;opacity:.18;position:absolute;right:18px;top:15px}.topic-tile h2{font-size:20px;line-height:1.16;letter-spacing:-.035em;margin:39px 0 7px;max-width:160px}.topic-tile p{color:#62686a;font-size:12px;margin:0}.topic-actions{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px}.follow{border:1px solid #b9bbb5;background:#ffffff99;padding:8px 11px;border-radius:9px;font-size:11px;font-weight:800}.follow.active{background:var(--ink);color:#fff;border-color:var(--ink)}.topic-open{border:0;background:transparent;font-size:12px;font-weight:800;padding:6px 0}.topic-open:hover{text-decoration:underline}
.search-box{background:#fff;border:1px solid var(--line);border-radius:15px;display:flex;align-items:center;gap:12px;padding:0 16px;height:54px;margin:12px 0 26px}.search-box svg{width:20px;color:#858a8b}.search-box input{flex:1;width:100%;border:0;outline:0;background:transparent;color:var(--ink);font-size:16px}.search-box input::placeholder{color:#a2a6a7}.search-hint{font-size:12px;color:var(--muted);margin-bottom:12px}
.article-top{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:24px}.back-button{display:flex;align-items:center;gap:8px;border:0;background:transparent;padding:8px 0;font-size:13px;font-weight:800}.article-headline{font-size:clamp(33px,4.3vw,56px);letter-spacing:-.056em;line-height:1.08;font-weight:900;margin:18px 0}.article-deck{font-size:clamp(17px,2vw,21px);line-height:1.48;color:#4c5354;margin:0 0 26px;max-width:720px}.article-media{width:100%;aspect-ratio:1.7;object-fit:cover;border-radius:20px;background:#e8e8e4;margin:0 0 24px}.article-surface{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px 30px}.article-surface p{font-size:16px;line-height:1.64;margin:0 0 19px;color:#333a3b}.article-surface p:last-child{margin-bottom:0}.article-subhead{font-size:20px;letter-spacing:-.03em;margin:26px 0 13px}.article-note{border-left:4px solid var(--yellow);padding:7px 0 7px 17px;color:#515658;font-size:14px;line-height:1.55;margin:22px 0}.article-quote{background:#fff3d2;border-radius:15px;padding:19px 22px;font-size:19px;line-height:1.42;font-weight:700;margin:22px 0}.metric-box{background:#f5f5f1;border-radius:16px;padding:20px 20px 18px;margin:20px 0}.metric-title{font-size:12px;font-weight:800;color:#5c6464;margin-bottom:15px}.metric-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:5px 16px;align-items:center;margin:13px 0}.metric-row strong{font-size:20px;letter-spacing:-.035em}.metric-row span{font-size:13px;color:#545b5b}.metric-track{grid-column:1/-1;height:5px;background:#e2e3de;border-radius:8px;overflow:hidden}.metric-fill{height:100%;border-radius:8px;background:var(--ink)}.metric-row:first-of-type .metric-fill{background:#9da3a0}.article-points{padding-left:19px;margin:12px 0}.article-points li{font-size:15px;line-height:1.55;margin:7px 0}.source-stack{display:grid;gap:9px;margin-top:15px}.source-link{display:flex;justify-content:space-between;align-items:center;text-decoration:none;border:1px solid var(--line);border-radius:12px;padding:13px 15px;font-weight:800;font-size:13px;background:#fff}.source-link:hover{background:#fff7df}.source-link small{font-weight:500;color:var(--muted)}.article-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:23px 0 28px}.action{border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 14px;display:flex;align-items:center;gap:8px;font-size:12px;font-weight:800}.action.active{border-color:var(--yellow);background:var(--yellow)}.action:hover{border-color:#9da2a1}.action svg{width:17px;height:17px}.article-related{margin-top:28px}.article-related h2{font-size:20px;letter-spacing:-.035em}
.mobile-nav{display:none}.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);background:var(--ink);color:white;padding:11px 17px;border-radius:12px;font-size:13px;opacity:0;pointer-events:none;z-index:20;transition:opacity .2s,transform .2s;box-shadow:0 10px 25px #1113}.toast.show{opacity:1;transform:translate(-50%,0)}.auth-screen{max-width:460px;margin:20vh auto;padding:30px;text-align:center}.auth-screen h1{font-size:26px;line-height:1.2}.auth-screen p{color:var(--muted);line-height:1.5}.auth-screen .brand{margin:auto}
@media(max-width:1160px){.shell{grid-template-columns:205px minmax(0,1fr);column-gap:30px;padding:0 30px}.rail{display:none}}@media(max-width:760px){.shell{display:block;padding:0 16px}.side{display:none}.main{padding:18px 0 calc(98px + env(safe-area-inset-bottom))}.main-top{margin-bottom:29px}.mobile-brand{display:flex;align-items:center;gap:9px}.mobile-brand img{width:31px;height:31px}.mobile-brand strong{font-size:20px;letter-spacing:-.04em}.today-meta{display:none}.page-title{font-size:40px}.page-subtitle{font-size:14px;margin-bottom:20px}.catchup{margin:20px 0 27px}.hero-media{height:220px}.hero-body{padding:19px 19px 20px}.hero-title{font-size:27px}.hero-lead{font-size:14px}.story-card{padding:13px;gap:12px;min-height:124px}.story-card h3{font-size:16px}.story-card p{font-size:12px}.story-card-image,.story-card-placeholder{width:82px;height:82px}.story-card .story-meta{font-size:10px}.story-card-actions{margin-top:8px}.mobile-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:15;padding:8px 10px calc(7px + env(safe-area-inset-bottom));background:#fffffff0;backdrop-filter:blur(18px);border-top:1px solid var(--line)}.tab-button{border:0;background:transparent;color:#798080;display:flex;flex-direction:column;align-items:center;gap:4px;padding:4px 0;font-size:10px;font-weight:800;position:relative}.tab-button.active{color:var(--ink)}.tab-button.active:before{content:"";position:absolute;top:-8px;width:28px;height:3px;background:var(--yellow);border-radius:4px}.tab-button svg{width:21px;height:21px}.article-headline{font-size:35px}.article-deck{font-size:17px}.article-media{border-radius:15px}.article-surface{padding:21px 19px}.article-surface p{font-size:15px}.topics-grid{gap:9px}.topic-tile{padding:16px;min-height:195px}.topic-tile h2{font-size:17px;max-width:125px}.topic-big{font-size:51px}.article-actions{gap:7px}.action{padding:9px 11px}.auth-screen{margin:16vh auto}}
@media(max-width:390px){.shell{padding:0 12px}.page-title{font-size:36px}.hero-media{height:190px}.hero-title{font-size:24px}.story-card-image,.story-card-placeholder{width:72px;height:72px}.topic-tile{min-height:180px}.topic-tile h2{font-size:16px}}
@media(max-width:760px){.catchup{display:grid;grid-template-columns:36px minmax(0,1fr);gap:10px 12px}.catchup-copy{min-width:0}.catchup .text-button{grid-column:2;justify-self:start;padding:1px 0 0}.catchup-copy small{line-height:1.35}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}


.thumb-wrap{flex:none}
.story-card h3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.signal-label{border-radius:5px;padding:2px 5px;background:#fff1d5;color:#8e642a;font-size:10px;font-weight:800}
.filter.following-filter{border-color:#e9d184;background:#fff5d5}.filter.following-filter.active{border-color:var(--yellow);background:var(--yellow);color:var(--ink)}
.rail-save-link{display:inline-block;margin-top:14px;font-size:12px;font-weight:800;text-decoration:none}.rail-save-link:hover{text-decoration:underline}
.article-gallery{margin:0 0 24px}.article-gallery .article-media{margin:0}.article-gallery.multiple{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.article-gallery.multiple .article-media{aspect-ratio:1.2}.article-gallery.multiple .article-media:first-child{grid-column:1/-1;aspect-ratio:1.7}
@media(max-width:760px){.article-headline{font-size:clamp(28px,8vw,34px)}.article-gallery.multiple .article-media{aspect-ratio:1}.topic-tile{min-height:215px}.topic-actions{flex-direction:column;align-items:flex-start;gap:5px}.follow,.topic-open{white-space:nowrap}.mobile-nav{grid-template-columns:repeat(5,1fr)}}

/* Visual system: editorial artwork, category colour and restrained native motion. */
:root{--ease-out:cubic-bezier(.22,1,.36,1)}
.hero-card,.story-card,.topic-tile,.rail-block{box-shadow:0 2px 3px rgba(25,27,29,.018),0 14px 32px rgba(25,27,29,.035)}
.hero-card{transition:transform .35s var(--ease-out),box-shadow .35s var(--ease-out),border-color .35s}
.hero-card:hover{transform:translateY(-3px);box-shadow:0 22px 52px rgba(25,27,29,.12);border-color:#d7d8d4}
.hero-card:active,.story-card:active,.topic-tile:active{transform:scale(.992)}
.story-card{transition:transform .27s var(--ease-out),box-shadow .27s var(--ease-out),border-color .27s}
.story-card:hover{border-color:#d8dbd6;box-shadow:0 12px 30px rgba(25,27,29,.075)}
.story-card[data-open],.hero-card[data-open]{cursor:pointer}
.art-frame{position:relative;isolation:isolate;overflow:hidden;background:#dce5de}
.art-frame[data-category="ai"]{background:#d4c7e7}.art-frame[data-category="neuro"]{background:#223555}.art-frame[data-category="bio"]{background:#d8e9d8}.art-frame[data-category="products"]{background:#ffe39a}
.art-frame .editorial-art{height:100%;width:100%;object-fit:cover;transform:scale(1.015);transition:transform 1.1s var(--ease-out),filter .6s var(--ease-out)}
.art-frame[data-variant="1"] .editorial-art{object-position:72% center;transform:scale(1.32)}
.art-frame[data-variant="2"] .editorial-art{object-position:25% center;transform:scale(1.18) scaleX(-1)}
.hero-card:hover .editorial-art,.story-card:hover .editorial-art{transform:scale(1.09)}
.hero-card:hover .art-frame[data-variant="1"] .editorial-art,.story-card:hover .art-frame[data-variant="1"] .editorial-art{transform:scale(1.39)}
.hero-card:hover .art-frame[data-variant="2"] .editorial-art,.story-card:hover .art-frame[data-variant="2"] .editorial-art{transform:scale(1.25) scaleX(-1)}
.art-frame:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.10),transparent 40%,rgba(0,0,0,.11));pointer-events:none}
.art-stamp{position:absolute;left:22px;bottom:20px;color:#fff;z-index:1;font-size:10px;letter-spacing:.16em;font-weight:900;text-shadow:0 1px 5px #2228}
.art-frame[data-category="bio"] .art-stamp,.art-frame[data-category="products"] .art-stamp{color:#203d39;text-shadow:none}
.art-spark{position:absolute;right:21px;top:16px;font-size:35px;line-height:1;color:#fff;opacity:.9;z-index:1;animation:art-spark 8s ease-in-out infinite}
.art-frame[data-category="bio"] .art-spark,.art-frame[data-category="products"] .art-spark{color:#264c47}
.thumb-wrap.art-frame{width:112px;height:96px;flex:none;border-radius:13px}
.thumb-wrap .art-stamp,.thumb-wrap .art-spark{display:none}
.thumb-wrap.art-frame:after{background:linear-gradient(125deg,rgba(255,255,255,.04),transparent 62%)}
.article-art{margin:0 0 24px;border-radius:20px;overflow:hidden}
.article-art .hero-media{height:210px}
.article-art .art-stamp{bottom:17px}
.story-card[data-open]:hover h3,.hero-card[data-open]:hover .hero-title{color:#202424}
.story-meta .category-dot{box-shadow:0 0 0 3px #e46b4e1e}
.hero-card:has([data-category="neuro"]) .category-dot,.story-card:has([data-category="neuro"]) .category-dot{background:#536fa5;box-shadow:0 0 0 3px #536fa51e}
.hero-card:has([data-category="bio"]) .category-dot,.story-card:has([data-category="bio"]) .category-dot{background:#4e967c;box-shadow:0 0 0 3px #4e967c1e}
.hero-card:has([data-category="ai"]) .category-dot,.story-card:has([data-category="ai"]) .category-dot{background:#8d6dc0;box-shadow:0 0 0 3px #8d6dc01e}
.catchup{background:#fff7dd;border:1px solid #f6e6af;box-shadow:0 4px 20px #6954130b;transition:background .25s,transform .25s var(--ease-out)}
.catchup:hover{background:#fff2c5;transform:translateY(-2px)}
.catchup-icon{position:relative;overflow:hidden;background:#1e2426}
.signal-ring{height:19px;width:19px;border:1.5px solid #ffdc58;border-radius:50%;display:block;position:absolute;animation:signal-ping 3.2s ease-out infinite}
.signal-ring:after{content:"";position:absolute;left:50%;top:0;width:1px;height:50%;background:#ffdc58;transform-origin:bottom;transform:rotate(42deg)}
.signal-core{width:5px;height:5px;border-radius:50%;background:#ffdc58;position:relative;z-index:1;box-shadow:0 0 8px #ffdc58}
.filter,.follow,.action,.save-button,.icon-button,.tab-button,.nav-item,.primary-button{transition:transform .25s var(--ease-out),background .25s,border-color .25s,color .25s,box-shadow .25s var(--ease-out)}
.filter:hover,.follow:hover,.action:hover,.save-button:hover,.primary-button:hover{transform:translateY(-2px)}
.filter:active,.follow:active,.action:active,.save-button:active,.icon-button:active,.tab-button:active,.nav-item:active,.primary-button:active{transform:scale(.94)}
.save-button.saved svg,.action.active svg,.follow.active{animation:save-pop .4s var(--ease-out)}
.tab-button.active svg,.nav-item.active svg{animation:nav-settle .4s var(--ease-out)}
.tab-button.active:before{width:30px;box-shadow:0 0 12px #ffdc58a3;transition:width .25s}
.nav-item.active{box-shadow:0 5px 18px #e5bb3273}
.route-enter{animation:route-enter .42s var(--ease-out) both}
.reading-progress{position:fixed;left:0;right:0;top:0;height:3px;background:#e4b92c;transform:scaleX(0);transform-origin:left;z-index:30;opacity:0;transition:opacity .2s}
.reading-progress.visible{opacity:1}
.topic-tile{transition:transform .35s var(--ease-out),box-shadow .35s var(--ease-out)}
.topic-tile:hover{transform:translateY(-4px);box-shadow:0 16px 33px #171b1d18}
.topic-art{position:absolute;right:-32%;top:-21%;width:85%;height:94%;object-fit:cover;border-radius:50%;opacity:.6;filter:saturate(.9);mix-blend-mode:multiply;transition:transform .6s var(--ease-out)}
.topic-tile:hover .topic-art{transform:translate(-9px,8px) rotate(6deg)}
.topic-big{display:none}.topic-tile h2,.topic-tile p,.topic-actions{position:relative;z-index:2}
.topic-tile h2{margin-top:65px}
.empty-symbol{display:inline-grid;place-items:center;width:70px;height:70px;background:#fff2cc;border-radius:22px;animation:empty-float 4s ease-in-out infinite}
.boot-mark{animation:boot-breathe 2.2s ease-in-out infinite}
@keyframes art-spark{0%,100%{transform:rotate(-13deg) scale(1);opacity:.82}50%{transform:rotate(22deg) scale(1.15);opacity:1}}
@keyframes signal-ping{0%,100%{box-shadow:0 0 0 0 #ffdc5800}32%{box-shadow:0 0 0 8px #ffdc582e}65%{box-shadow:0 0 0 11px #ffdc5800}}
@keyframes save-pop{0%{transform:scale(.65)}55%{transform:scale(1.26)}100%{transform:scale(1)}}
@keyframes nav-settle{0%{transform:translateY(3px) scale(.8)}65%{transform:translateY(-2px) scale(1.12)}100%{transform:none}}
@keyframes route-enter{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@keyframes empty-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
@keyframes boot-breathe{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}
@media(max-width:760px){.main-top{margin-bottom:18px}.page-intro .page-subtitle{display:none}.page-subtitle{margin-bottom:15px}.catchup{margin:12px 0 17px;padding:10px 12px}.section-head{margin:23px 0 11px}.hero-media{height:145px}.thumb-wrap.art-frame{width:82px;height:82px}.art-stamp{left:14px;bottom:13px;font-size:8px}.art-spark{right:15px;top:12px;font-size:26px}.article-art .hero-media{height:155px}.topic-art{width:105%;right:-50%}.topic-tile h2{margin-top:61px}}
@media(max-width:390px){.thumb-wrap.art-frame{width:72px;height:72px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}

/* Theme and discovery states. */
.nav-item,.tab-button{text-decoration:none}
.nav-item:hover,.nav-item:focus-visible,.tab-button:hover,.tab-button:focus-visible{text-decoration:none}
.theme-toggle svg{width:19px;height:19px;stroke-width:1.8;transition:transform .35s var(--ease-out)}
.theme-toggle:hover svg{transform:rotate(25deg)}
.search-discover{animation:route-enter .35s var(--ease-out) both}
.search-discover .section-head:first-child{margin-top:5px}
.search-suggestions{display:flex;flex-wrap:wrap;gap:9px;margin:0 0 30px}
.suggestion{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--line);border-radius:999px;background:var(--surface);padding:10px 14px;color:var(--ink);font-size:13px;font-weight:800;transition:transform .25s var(--ease-out),border-color .25s,background .25s}
.suggestion svg{width:15px;height:15px;stroke-width:2}
.suggestion:hover{transform:translateY(-2px);border-color:var(--yellow);background:#fff8dc}
.suggestion:active{transform:scale(.96)}

html[data-theme="dark"]{--paper:#121619;--surface:#1d2428;--ink:#f2f3ef;--muted:#a8b2b1;--line:#354044;--yellow:#ffdd66;--coral:#ff8166;--soft:#222b2f;--shadow:0 16px 44px rgba(0,0,0,.18);background:var(--paper);color:var(--ink)}
html[data-theme="dark"] body{background:var(--paper)}
html[data-theme="dark"] .side{border-color:var(--line)}
html[data-theme="dark"] .brand-icon,html[data-theme="dark"] .mobile-brand img{box-shadow:0 0 0 1px #5e6668}
html[data-theme="dark"] .nav-item{color:#c1cac9}
html[data-theme="dark"] .nav-item:hover{background:#283136;color:var(--ink)}
html[data-theme="dark"] .nav-item.active{background:var(--yellow);color:#171b1d;box-shadow:0 6px 20px #e5b5312f}
html[data-theme="dark"] .nav-count{background:#171b1d22;color:#171b1d}
html[data-theme="dark"] .side-bottom{border-color:var(--line)}
html[data-theme="dark"] .side-bottom p,html[data-theme="dark"] .side-bottom .tiny,html[data-theme="dark"] .today-meta,html[data-theme="dark"] .eyebrow{color:#9aa6a5}
html[data-theme="dark"] .side-bottom strong{color:var(--ink)}
html[data-theme="dark"] .page-subtitle,html[data-theme="dark"] .hero-lead,html[data-theme="dark"] .story-card p,html[data-theme="dark"] .article-deck,html[data-theme="dark"] .article-surface p{color:#bdc6c4}
html[data-theme="dark"] .story-meta,html[data-theme="dark"] .section-head span,html[data-theme="dark"] .day-label,html[data-theme="dark"] .search-hint{color:#9eaaa9}
html[data-theme="dark"] .story-meta .sep{color:#677374}
html[data-theme="dark"] .icon-button,html[data-theme="dark"] .hero-card,html[data-theme="dark"] .story-card,html[data-theme="dark"] .rail-block,html[data-theme="dark"] .article-surface,html[data-theme="dark"] .source-link,html[data-theme="dark"] .action,html[data-theme="dark"] .save-button,html[data-theme="dark"] .filter,html[data-theme="dark"] .search-box,html[data-theme="dark"] .empty,html[data-theme="dark"] .suggestion{background:var(--surface);border-color:var(--line);color:var(--ink)}
html[data-theme="dark"] .hero-card:hover,html[data-theme="dark"] .story-card:hover{border-color:#596469;box-shadow:0 18px 40px #0005}
html[data-theme="dark"] .story-card[data-open]:hover h3,html[data-theme="dark"] .hero-card[data-open]:hover .hero-title{color:#fff}
html[data-theme="dark"] .icon-button:hover,html[data-theme="dark"] .source-link:hover,html[data-theme="dark"] .suggestion:hover{background:#303a3d;border-color:var(--yellow)}
html[data-theme="dark"] .save-button.saved,html[data-theme="dark"] .action.active{background:var(--yellow);border-color:var(--yellow);color:#171b1d}
html[data-theme="dark"] .filter.active,html[data-theme="dark"] .follow.active{background:var(--yellow);border-color:var(--yellow);color:#171b1d}
html[data-theme="dark"] .filter.following-filter{background:#343124;border-color:#5b5332;color:#f7df95}
html[data-theme="dark"] .filter.following-filter.active{background:var(--yellow);color:#171b1d;border-color:var(--yellow)}
html[data-theme="dark"] .catchup{background:#2d2a20;border-color:#51492b;box-shadow:0 4px 24px #0002}
html[data-theme="dark"] .catchup:hover{background:#353023}
html[data-theme="dark"] .catchup-copy small{color:#c0b99e}
html[data-theme="dark"] .catchup-icon{background:#171b1d}
html[data-theme="dark"] .rail-label,html[data-theme="dark"] .rail-block p,html[data-theme="dark"] .rail-footer,html[data-theme="dark"] .topic-tile p,html[data-theme="dark"] .metric-title,html[data-theme="dark"] .metric-row span,html[data-theme="dark"] .article-note,html[data-theme="dark"] .source-link small{color:#aab4b1}
html[data-theme="dark"] .rail-topic{border-color:#354044}
html[data-theme="dark"] .rail-topic-mark{color:#171b1d}
html[data-theme="dark"] .rail-save{background:#302d22;border-color:#524729}
html[data-theme="dark"] .topic-tile{border-color:var(--line);background:#272c39;color:var(--ink)}
html[data-theme="dark"] .topic-tile:nth-child(2){background:#26332f}
html[data-theme="dark"] .topic-tile:nth-child(3){background:#26313e}
html[data-theme="dark"] .topic-tile:nth-child(4){background:#383227}
html[data-theme="dark"] .topic-tile:nth-child(5){background:#302d2b}
html[data-theme="dark"] .topic-art{opacity:.35;mix-blend-mode:screen}
html[data-theme="dark"] .follow{background:#ffffff13;border-color:#667071;color:var(--ink)}
html[data-theme="dark"] .search-box input{color:var(--ink)}
html[data-theme="dark"] .search-box input::placeholder{color:#839190}
html[data-theme="dark"] .metric-box{background:#273035}
html[data-theme="dark"] .article-quote{background:#403823;color:#fff2d0}
html[data-theme="dark"] .article-note{border-color:var(--yellow)}
html[data-theme="dark"] .signal-label{background:#49381f;color:#ffd58c}
html[data-theme="dark"] .empty{border-style:dashed;border-color:#526064}
html[data-theme="dark"] .empty-symbol{background:#403823}
html[data-theme="dark"] .primary-button{color:#171b1d}
html[data-theme="dark"] .mobile-nav{background:#192024f2;border-color:#354044}
html[data-theme="dark"] .tab-button{color:#95a3a4}
html[data-theme="dark"] .tab-button.active{color:var(--ink)}
html[data-theme="dark"] .toast{background:#e8eee9;color:#171b1d}
html[data-theme="dark"] .auth-screen p{color:var(--muted)}
@media(max-width:760px){.catchup .text-button{display:none}.catchup,.catchup:hover{transform:none}.catchup:hover{background:#fff7dd}html[data-theme="dark"] .catchup:hover{background:#2d2a20}.search-suggestions{gap:7px}.suggestion{padding:9px 11px;font-size:12px}}
@media(prefers-reduced-motion:reduce){.search-discover{animation:none!important}.theme-toggle svg{transition:none!important}}

/* Editorial front page, topic artwork and reader insights. */
.mobile-brand img{border-radius:10px;overflow:hidden}.page-title .underline{box-shadow:none}
.daily-title{font-size:clamp(30px,3.8vw,46px);line-height:1.13;letter-spacing:-.045em;margin:12px 0 14px;text-wrap:balance}
.daily-topic{display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted);font-weight:700}
.daily-intro{margin-bottom:22px}.hero-body>.hero-lead{margin-top:12px}.mobile-nav{grid-template-columns:repeat(3,1fr)}
.topic-tile{padding:0;min-height:300px;display:flex;flex-direction:column;background:var(--surface)}
.topic-art-link{display:block;height:112px;overflow:hidden;flex:none;background:var(--soft)}
.topic-art{position:static;width:100%;height:100%;border-radius:0;object-fit:cover;opacity:1;mix-blend-mode:normal;filter:none;transition:transform .6s var(--ease-out)}
.topic-tile:hover .topic-art{transform:scale(1.06)}
.topic-copy{padding:17px 17px 0}.topic-tile h2{font-size:20px;max-width:none;line-height:1.2;margin:0;min-height:48px;letter-spacing:-.025em}
.topic-tile p{margin:10px 0 0;font-size:12px;line-height:1.4}
.topic-actions{padding:17px;gap:12px;align-items:center;flex-direction:row;margin-top:auto}
.topic-open{text-decoration:none}.topic-open:hover{text-decoration:none}
html[data-theme="dark"] .topic-art{opacity:1;mix-blend-mode:normal}
.reading-insights{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:24px;margin:25px 0 34px}
.insight-favorite h2{font-size:24px;line-height:1.15;letter-spacing:-.035em;margin:10px 0 8px}.insight-favorite p{font-size:13px;line-height:1.4;color:var(--muted);margin:0}
.insight-totals{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:22px 0;margin-top:12px;border-bottom:1px solid var(--line)}
.insight-totals div{display:flex;align-items:baseline;gap:10px}.insight-totals strong{font-size:30px;letter-spacing:-.06em}.insight-totals span{font-size:12px;color:var(--muted)}
.insight-chart-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:23px 0 15px}.insight-chart-head h3{font-size:15px;margin:0;letter-spacing:-.02em}.insight-chart-head>span{font-size:11px;color:var(--muted)}
.reading-chart{height:85px;display:grid;grid-template-columns:repeat(14,minmax(0,1fr));gap:7px;align-items:end;border-bottom:1px solid var(--line);background:repeating-linear-gradient(to top,transparent 0,transparent 27px,var(--line) 28px,transparent 29px)}
.reading-bar-column{display:flex;align-items:flex-end;height:100%;min-width:0}.reading-bar{display:block;width:100%;height:max(3px,var(--bar));background:#d3af43;border-radius:4px 4px 0 0;transition:height .3s var(--ease-out)}.reading-bar.zero{background:var(--line);height:3px}
html[data-theme="dark"] .reading-bar:not(.zero){background:var(--yellow)}
.chart-dates{display:flex;justify-content:space-between;color:var(--muted);font-size:10px;margin-top:9px}
.insight-topic-head{display:flex;justify-content:space-between;color:var(--muted);font-size:10px;font-weight:700;margin:24px 0 8px}
.insight-topic{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding:11px 0;font-size:12px}.insight-topic a{display:flex;align-items:center;gap:9px;text-decoration:none;font-weight:700}.insight-topic>span{font-variant-numeric:tabular-nums}.insight-topic i{font-style:normal;color:var(--muted);margin:0 13px}
.insight-note,.insight-empty{font-size:11px;line-height:1.5;color:var(--muted);margin:14px 0 0}.insight-note{padding-top:14px;border-top:1px solid var(--line)}
@media(max-width:760px){.daily-title{font-size:29px;line-height:1.12}.daily-intro{margin-bottom:16px}.topic-tile{min-height:280px}.topic-art-link{height:93px}.topic-copy{padding:14px 14px 0}.topic-tile h2{font-size:17px;min-height:41px;margin:0}.topic-actions{padding:16px 14px;flex-direction:column;align-items:flex-start;gap:11px}.topic-tile p{font-size:11px;margin-top:9px}.topic-art{width:100%;height:100%;right:auto}.reading-insights{padding:19px 17px}.insight-favorite h2{font-size:22px}.insight-totals{gap:10px}.insight-totals div{flex-direction:column;gap:4px}.reading-chart{gap:5px}.insight-chart-head>span{font-size:10px}.mobile-nav{grid-template-columns:repeat(3,1fr)}}
.reading-insights{padding:21px;margin:22px 0 28px}.insight-totals{padding:14px 0;margin-top:9px}.insight-totals strong{font-size:27px}.insight-chart-head{margin:16px 0 10px}.reading-chart{height:64px}.insight-topic-head{margin-top:16px}.insight-topic{padding:8px 0}.insight-note{margin-top:10px;padding-top:10px}
.insight-topic[data-category="ai"] .category-dot{background:#9c83d0}.insight-topic[data-category="bio"] .category-dot{background:#65a58a}.insight-topic[data-category="neuro"] .category-dot{background:#7893c5}
@media(max-width:760px){.reading-insights{padding:17px 16px}.insight-favorite h2{font-size:21px}.insight-totals div{gap:3px}}
.daily-context{font-size:13px;color:var(--muted);line-height:1.5;margin:14px 0 12px}
.daily-sources{display:grid;gap:8px;max-width:650px}.daily-sources a{display:flex;gap:10px;align-items:baseline;color:var(--muted);text-decoration:none;font-size:12px;line-height:1.45}.daily-sources a:hover{color:var(--ink)}.daily-sources a span{font-size:10px;color:var(--coral);font-variant-numeric:tabular-nums;flex-shrink:0}
.insight-totals{gap:12px;border-bottom:0}.insight-totals div{display:flex;flex-direction:column;align-items:flex-start;gap:7px;padding:14px;border:1px solid var(--line);border-radius:14px}.insight-totals div>span:first-child{font-size:10px}.insight-explanation{margin:0;font-size:12px;color:var(--muted);line-height:1.5}
@media(max-width:760px){.daily-sources a{font-size:11px}.insight-totals div{padding:12px;gap:7px}.insight-totals span{font-size:11px}}