/* CrannAI — monochrome, system fonts, no remote assets. */
:root{--bg:#0b0b0b;--surface:#111111;--raised:#161616;--ink:#ededed;--muted:#a3a3a3;--dim:#7b7b7b;--line:#2b2b2b;--soft:#1b1b1b;--max:1280px;--sans:Arial,Helvetica,sans-serif;--mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}::selection{background:#d3d3d3;color:#111111}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}img{display:block;max-width:100%;height:auto}figure{margin:0}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:400;line-height:1.06;letter-spacing:-.045em}p{color:var(--muted)}h1{font-size:clamp(48px,6.6vw,92px)}h2{font-size:clamp(34px,3.8vw,52px)}h3{font-size:24px;letter-spacing:-.025em}button{color:inherit}a,button{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid #ededed;outline-offset:5px}.wrap{width:calc(100% - 112px);max-width:var(--max);margin:0 auto}.section{padding:112px 0}.eyebrow,.mono{font:11px/1.5 var(--mono);letter-spacing:.11em;color:#a8a8a8}.eyebrow{margin-bottom:26px}.small-copy{font-size:13px;line-height:1.75}.muted{color:var(--muted)}.skip-link{position:absolute;left:24px;top:-80px;background:var(--ink);color:var(--bg);padding:12px 20px;z-index:1000}.skip-link:focus{top:12px}.site-header{height:91px;border-bottom:1px solid var(--line);position:relative;z-index:30;background:var(--bg)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%;gap:35px}.brand{display:inline-flex;align-items:center;gap:12px;font-size:27px;line-height:1;letter-spacing:-1.3px;font-weight:600;white-space:nowrap}.brand-ai{color:#a7a7a7;font-weight:400}.brand-mark{display:grid;grid-template-columns:repeat(3,3px);gap:4px;transform:rotate(-9deg);width:17px}.brand-mark i{height:3px;width:3px;border-radius:50%;background:#dfdfdf}.brand-mark i:nth-child(1),.brand-mark i:nth-child(3){opacity:.25}.brand-mark i:nth-child(7),.brand-mark i:nth-child(9){opacity:.2}.brand-mark i:nth-child(8){transform:translateY(3px)}.site-nav{display:flex;align-items:center;gap:34px;font-size:13px}.site-nav a{color:#b2b2b2;transition:color .2s}.site-nav a:hover,.site-nav a[aria-current]{color:#ffffff}.site-nav .nav-cta{border:1px solid #4b4b4b;color:var(--ink);padding:11px 18px;display:flex;gap:24px;align-items:center}.menu-toggle{display:none;background:transparent;border:1px solid var(--line);padding:8px 12px;font-size:13px}.hero{overflow:hidden;border-bottom:1px solid var(--line)}.hero-inner{position:relative;min-height:815px;padding-top:99px;isolation:isolate}.hero-copy{position:relative;z-index:3;max-width:660px;pointer-events:none}.hero-copy a{pointer-events:auto}.hero-kicker{display:flex;gap:24px;align-items:center;margin-bottom:31px;font:10px var(--mono);letter-spacing:.13em;color:#929292}.status{display:inline-flex;align-items:center;gap:9px;font:10px var(--mono);text-transform:uppercase;letter-spacing:.09em;color:#cccccc}.status>span{width:5px;height:5px;border-radius:50%;background:#cdcdcd;box-shadow:0 0 0 4px #aeaeae14}.hero h1{font-size:clamp(54px,6.6vw,92px);line-height:1.025;letter-spacing:-.06em;margin-left:-4px}.hero h1 span{display:block}.hero h1 span:nth-child(2){color:#b8b8b8}.hero-description{max-width:417px;font-size:15px;line-height:1.85;margin-top:28px;color:#ababab}.hero-actions{display:flex;align-items:center;gap:27px;margin-top:35px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:32px;padding:15px 21px;border:1px solid transparent;line-height:1.2;font-size:13px;font-weight:500;transition:background .2s,border-color .2s}.button-light{color:#181818;background:#e8e8e8;border-color:#e8e8e8}.button-light:hover{background:#ffffff;border-color:#ffffff}.button-outline{border-color:#484848;background:transparent;color:var(--ink)}.button-outline:hover{background:#232323}.button span,.text-link span{font-size:18px;line-height:1}.text-link{display:inline-flex;align-items:center;gap:23px;font-size:12px;line-height:1.7;padding-bottom:5px;border-bottom:1px solid #4a4a4a}.text-link:hover{color:white;border-color:#dddddd}.hero .text-link{font-size:12px;gap:12px}.hero-visual{position:absolute;right:-95px;top:-1px;width:850px;height:773px;z-index:1;overflow:hidden;pointer-events:none}.hero-visual img{width:100%;height:100%;object-fit:contain;opacity:.82;mix-blend-mode:screen}.hero-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--bg),#0b0b0b88 12%,transparent 31%),linear-gradient(0deg,var(--bg),transparent 16%);pointer-events:none}.hero-visual figcaption{position:absolute;left:240px;right:95px;bottom:27px;z-index:3;display:flex;justify-content:space-between;gap:12px;font:9px/1.5 var(--mono);letter-spacing:.05em;color:#979797}.hero-visual figcaption span:last-child{letter-spacing:0;color:#7d7d7d}.visual-corner{position:absolute;color:#797979;font:16px var(--mono);z-index:3}.top-left{top:92px;left:260px}.top-right{top:92px;right:70px}.scan-line{position:absolute;left:26%;right:9%;top:20%;height:1px;background:linear-gradient(90deg,transparent,#e1e1e145,transparent);animation:scan 13s linear infinite;z-index:2;opacity:.5}.hero-bottom{position:absolute;bottom:29px;left:0;right:0;display:flex;justify-content:space-between;z-index:5;font:9px/1.5 var(--mono);letter-spacing:.13em;color:#777777}.hero-bottom a{display:flex;gap:19px;color:#a9a9a9}.intro-grid{display:grid;grid-template-columns:1fr 3fr;gap:64px}.intro-grid>.eyebrow{padding-top:10px}.intro-grid h2{font-size:clamp(34px,3.9vw,54px);line-height:1.15}.intro-columns{display:grid;grid-template-columns:1fr 1fr;gap:57px;margin-top:33px}.intro-columns p{font-size:15px;line-height:1.9}.intro-columns .text-link{margin-top:24px}.work-section{padding-top:0}.section-heading{display:flex;justify-content:space-between;gap:30px;align-items:flex-end;margin-bottom:45px}.section-heading .eyebrow{margin-bottom:18px}.section-heading .text-link{margin-bottom:6px;white-space:nowrap}.work-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line)}.work-grid article{position:relative;padding:35px 31px 28px;border-right:1px solid var(--line)}.work-grid article:last-child{border-right:0}.work-number{font:10px var(--mono);color:#838383;position:absolute;right:27px;top:33px}.line-icon{height:54px;font:48px/1 var(--mono);color:#acacac;opacity:.8;margin-bottom:25px}.points-icon{font-size:43px}.work-grid h3{font-size:21px;letter-spacing:-.035em;margin-bottom:18px}.work-grid 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.text-link{margin-top:26px}.posts-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}.post-card{min-width:0}.post-image{display:block;aspect-ratio:1.5;position:relative;overflow:hidden;background:#121212;border:1px solid var(--line)}.post-image img{width:100%;height:100%;object-fit:cover;transition:transform .7s;opacity:.85}.post-card:hover img{transform:scale(1.035)}.image-arrow{position:absolute;right:14px;bottom:10px;font-size:20px}.post-meta{display:flex;justify-content:space-between;gap:10px;font:9px/1.5 var(--mono);text-transform:uppercase;letter-spacing:.04em;color:#939393;margin:20px 0 12px}.post-card h3{font-size:25px;line-height:1.2;letter-spacing:-.035em;margin-bottom:12px}.post-card h3 a:hover{color:#c3c3c3}.post-card p{font-size:14px;line-height:1.75}.single-post{grid-template-columns:1fr 1fr 1fr}.single-post .post-card{grid-column:1/3;display:grid;grid-template-columns:1.1fr 1fr;gap:0 26px}.single-post .post-image{grid-row:1/5;aspect-ratio:1.15}.single-post .post-meta{margin-top:18px;align-self:end}.single-post h3{font-size:29px;align-self:center}.single-post p{align-self:start}.notes-aside{border-left:1px solid var(--line);padding:21px 0 20px 36px;display:flex;flex-direction:column;justify-content:space-between;gap:25px}.notes-aside>p{font-size:25px;line-height:1.35;letter-spacing:-.025em;color:#cacaca}.notes-aside .small-copy{font-size:12px;max-width:200px;color:#8c8c8c}.empty-notes{padding:42px;border:1px solid var(--line);background:#111111}.empty-notes h2,.empty-notes h3{margin-bottom:16px}.empty-notes p{margin-bottom:20px}.join-section{padding:85px 0;background:#141414;border-block:1px solid var(--line)}.join-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:100px;align-items:center}.join-grid h2{font-size:40px;line-height:1.15}.join-grid>div>p:not(.eyebrow){font-size:14px;margin-top:21px}.join-form-box{max-width:450px}.signup-form>label:first-of-type{font-size:12px}.email-line{display:flex;border-bottom:1px solid #5d5d5d;margin:7px 0 21px}.email-line input{border:0!important;background:transparent!important;padding:12px 0!important;font-size:17px!important}.email-line button{background:none;border:0;font-size:28px;padding:5px 10px 5px 25px}.signup-form .check{font-size:11px;color:#9c9c9c;line-height:1.8;gap:10px}.check{display:flex;align-items:flex-start;gap:12px;font-size:13px;font-weight:400;line-height:1.6}.check input[type=checkbox]{appearance:auto;width:14px;height:14px;min-width:14px;margin:4px 0 0;accent-color:#e5e5e5}.form-note{font-size:11px;line-height:1.8;color:#979797;margin-top:15px}.form-note a{text-decoration:underline;text-underline-offset:3px}.site-footer{padding:49px 0 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var(--line)}.prose{font-size:16px;line-height:1.95;color:var(--muted)}.prose p{margin:0 0 25px}.prose h2{font-size:35px;line-height:1.25;color:var(--ink);margin:44px 0 20px}.prose h2:first-of-type{margin-top:0}.prose h3{font-size:25px;line-height:1.3;color:var(--ink);margin:32px 0 16px}.prose a:not(.button){text-decoration:underline;text-underline-offset:4px}.prose a:hover{color:var(--ink)}.prose ul{padding-left:24px}.prose li{padding-left:6px;margin-bottom:10px}.prose blockquote{border-left:2px solid #858585;padding:12px 0 12px 25px;margin:28px 0;font-size:22px;color:#cdcdcd;line-height:1.65}.muted-section{background:#111111;border-block:1px solid var(--line)}.split-copy{display:grid;grid-template-columns:1fr 1fr;gap:100px}.split-copy h2{font-size:43px;line-height:1.18}.split-copy .button{margin-top:12px}.approach-list article{display:grid;grid-template-columns:1fr 2.2fr;gap:90px;padding:75px 0;border-bottom:1px solid var(--line)}.approach-list 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p{margin-top:16px;font-size:14px;line-height:1.9}.notes-list{padding-top:60px;min-height:350px}.notes-list .posts-grid{row-gap:58px}.pagination{display:flex;gap:12px;margin-top:55px}.pagination a{padding:7px 16px;border:1px solid var(--line)}.pagination a[aria-current]{background:#ebebeb;color:#0c0c0c}.article-wrap{max-width:1120px;padding-top:62px}.back-link{font-size:12px;color:#b0b0b0;display:inline-block}.article-heading{max-width:870px;margin:53px auto 40px}.article-heading h1{font-size:clamp(43px,5.5vw,72px);line-height:1.1}.article-heading .lead{font-size:20px;margin-top:25px}.article-byline{display:flex;flex-wrap:wrap;gap:15px;font:11px/1.6 var(--mono);color:#9d9d9d;margin-top:26px}.article-cover{margin:47px 0 59px;border:1px solid var(--line)}.article-cover img{width:100%;height:490px;object-fit:cover;object-position:center 40%}.article-cover figcaption{font-size:11px;padding:14px 20px;color:#a2a2a2;border-top:1px solid var(--line)}.article-body{max-width:740px;margin:auto;font-size:17px}.article-body h2{margin-top:44px}.article-end{max-width:740px;margin:58px auto 90px;padding-top:28px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:20px}.article-end p{font-size:14px}.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:100px;padding-top:75px}.contact-grid h2{font-size:43px;line-height:1.2;margin-bottom:28px}.contact-grid>div>p:not(.eyebrow){font-size:15px;line-height:1.9;margin-bottom:21px;max-width:360px}.email-link{margin-top:10px;word-break:break-word}.contact-location{margin-top:46px;padding-top:28px;border-top:1px solid var(--line)}.contact-location p{font-size:12px;margin-top:9px}.contact-form,.stack-form{display:grid;gap:24px}.contact-form label,.stack-form label{display:block;font-size:12px;line-height:1.7;color:#bcbcbc}.contact-form .check,.stack-form .check{display:flex}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.optional{color:#8c8c8c;font-size:11px}input:not([type=checkbox]):not([type=hidden]),select,textarea{display:block;width:100%;border:1px solid #424242;background:#111111;color:var(--ink);padding:13px 15px;border-radius:0;margin-top:8px;font-size:14px;line-height:1.55}input::placeholder,textarea::placeholder{color:#888888;opacity:1}input:hover,textarea:hover,select:hover{border-color:#737373}textarea{resize:vertical;min-height:80px}select{appearance:auto}label small{display:block;font-size:11px;color:#969696;margin-top:6px;line-height:1.75}.contact-form .form-note{margin-top:0}.contact-form .button{justify-self:start}.hp{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.legal-copy{max-width:800px;padding-block:70px 100px}.legal-copy h2{font-size:28px}.legal-copy p{font-size:15px}.notice{border:1px solid #878787;background:#212121;padding:16px 20px;margin-top:25px;font-size:14px;color:#e2e2e2;overflow-wrap:anywhere}.notice.error{border-color:#959595;background:#282828;color:#e7e7e7}.notice a{text-decoration:underline}.success-panel{border:1px solid var(--line);padding:42px;background:#171717}.success-panel h2{margin-top:23px}.success-panel p{margin-bottom:25px}.error-page{min-height:600px}.error-page .button{margin-top:30px}.auth-wrap{max-width:580px;padding-block:70px 90px}.auth-wrap h1{font-size:54px;margin-bottom:25px}.auth-wrap>p:not(.eyebrow){margin-bottom:28px;font-size:14px}.setup-wrap{max-width:780px}.setup-wrap .stack-form{margin-top:32px}.text-button{background:transparent;border:0;padding:0;border-bottom:1px solid #636363;font-size:12px;line-height:1.7;color:var(--ink)}.button-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}code{font-family:var(--mono);font-size:.86em;background:#1f1f1f;padding:2px 5px}summary{cursor:pointer}.message-text{overflow-wrap:anywhere}
/* Black and neutral grey only, including controls and small captions. */
:root{--bg:#0b0b0b;--surface:#121212;--raised:#181818;--ink:#ededed;--muted:#a6a6a6;--dim:#858585;--line:#2d2d2d}
.site-header,.hero{}.intro-section,.work-section,.study-section,.notes-section,.join-section,.site-footer,.page-intro,.about-grid,.muted-section,.split-copy,.approach-list,.wide-study,.faq-grid,.notes-list,.article-wrap,.contact-grid,.legal-copy,.auth-wrap,.notice{}
@keyframes scan{0%{transform:translateY(0);opacity:0}12%{opacity:.5}88%{opacity:.35}100%{transform:translateY(420px);opacity:0}}
@media(min-width:1600px){.hero-visual{right:-75px;width:900px}.hero h1{font-size:96px}}
@media(max-width:1150px){.wrap{width:calc(100% - 72px)}.hero-inner{min-height:740px;padding-top:90px}.hero h1{font-size:73px}.hero-visual{right:-165px;width:760px;height:690px;top:20px}.hero-copy{max-width:560px}.hero-actions{gap:19px}.hero .text-link{max-width:160px;font-size:11px;gap:10px}.hero-description{max-width:370px}.intro-grid{gap:38px;grid-template-columns:.8fr 3fr}.study-grid{gap:45px}.join-grid{gap:65px}.single-post .post-card{grid-template-columns:1fr 1fr}.single-post .post-image{aspect-ratio:.9}.single-post h3{font-size:25px}.notes-aside{padding-left:25px}.work-grid article{padding:28px 24px}.work-grid h3{font-size:19px}.work-grid p{min-height:120px}.about-grid,.contact-grid,.split-copy{gap:55px}.faq-grid{gap:40px}.approach-list article{gap:50px}}
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.scan-line{display:none}}
@media print{body{background:white;color:black}.site-header,.site-footer,.join-section,.hero-visual,.admin-sidebar,.save-bar{display:none}p,.prose{color:#333333}.wrap{width:100%}.article-cover img{max-height:300px}a{text-decoration:underline}}

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/* v1.1 scientific copy and source notes */
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/* Blend the approved tree illustration into the existing background. */
.hero-visual{background:var(--bg)}