/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.visible\!{visibility:visible!important}.relative{position:relative}.start{inset-inline-start:var(--spacing)}.isolate{isolation:isolate}.isolate\!{isolation:isolate!important}.contents{display:contents}.hidden{display:none}.table{display:table}.resize{resize:both}.ring{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}}:root{color:#172624;font-synthesis:none;--ink:#172624;--muted:#66746f;--line:#dce4df;--paper:#fff;--green:#176b59;--green-dark:#0f4f43;--mint:#dff1e9;--orange:#e87942;background:#f7f9f6;font-family:Inter,Noto Sans,system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body,#root{background:#f7f9f6;min-width:320px;min-height:100%;margin:0}button,input,textarea{font:inherit}button{color:inherit}button:not(:disabled){cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}a{color:inherit}svg{flex:none}button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline-offset:3px;outline:3px solid #1b7d69}.eyebrow{letter-spacing:.14em;color:#6c7a75;font-size:11px;font-weight:750}.brand{text-align:left;align-items:center;gap:11px;display:flex}.brand-mark{background:var(--green);color:#fff;border-radius:11px;place-items:center;width:39px;height:39px;display:grid}.brand strong,.brand small{display:block}.brand strong{font-size:15px}.brand small{color:#71807a;margin-top:2px;font-size:10px}.primary,.secondary,.tool-btn{border:0;border-radius:8px;justify-content:center;align-items:center;gap:9px;min-height:44px;padding:0 18px;font-size:14px;font-weight:700;display:inline-flex}.primary{background:var(--green);color:#fff;box-shadow:0 8px 18px #176b5920}.primary:hover{background:var(--green-dark)}.secondary,.tool-btn{border:1px solid var(--line);color:#374640;background:#fff}.wide{width:100%}.compact{min-height:38px}.icon-btn{background:0 0;border:0;border-radius:8px;place-items:center;width:42px;height:42px;display:grid}.icon-btn svg{width:20px}.mobile-only,.mobile-brand{display:none}.auth-page{background:#f7faf8;grid-template-columns:1.08fr .92fr;min-height:100vh;display:grid}.auth-story{background:linear-gradient(135deg,#e8f5ef 0%,#cfeae0 65%,#dceee7 100%);flex-direction:column;min-height:100vh;padding:42px clamp(38px,6vw,96px);display:flex;position:relative;overflow:hidden}.auth-copy{z-index:2;max-width:650px;margin:auto 0;position:relative}.auth-copy h1{letter-spacing:-.045em;margin:18px 0 26px;font-family:Georgia,serif;font-size:clamp(44px,6vw,82px);font-weight:400;line-height:1.03}.auth-copy h1 em{color:var(--green);font-style:italic}.auth-copy>p{color:#4d625b;max-width:570px;font-size:18px;line-height:1.75}.feature-row{flex-wrap:wrap;gap:12px;margin-top:38px;display:flex}.feature-row span{background:#ffffff78;border:1px solid #43796b38;border-radius:999px;align-items:center;gap:8px;padding:10px 13px;font-size:12px;display:flex}.feature-row svg{width:15px}.body-orbit{color:#176b5938;border:1px solid #176b5922;border-radius:50%;place-items:center;width:420px;height:420px;display:grid;position:absolute;bottom:-80px;right:-90px}.body-orbit>svg{width:120px;height:120px}.orbit{border:1px solid #176b592a;border-radius:50%;position:absolute}.orbit.one{inset:48px}.orbit.two{inset:102px}.auth-form-wrap{background:#fff;place-items:center;padding:40px;display:grid}.auth-card{width:min(440px,100%)}.auth-card h2{margin:14px 0 10px;font-family:Georgia,serif;font-size:42px;font-weight:400}.auth-card>p{color:var(--muted);margin-bottom:30px;line-height:1.6}.auth-card label{gap:8px;margin:18px 0;font-size:13px;font-weight:700;display:grid}.auth-card input{background:#fbfcfb;border:1px solid #ccd7d2;border-radius:8px;height:50px;padding:0 14px}.auth-card input:focus{border-color:var(--green)}.form-error{font-size:13px;color:#a13030!important}.demo-note{justify-content:center;align-items:center;gap:7px;display:flex;margin:17px 0!important;font-size:11px!important}.app-header{border-bottom:1px solid var(--line);z-index:50;background:#fff;justify-content:space-between;align-items:center;height:72px;padding:0 clamp(20px,4vw,64px);display:flex;position:sticky;top:0}.brand-button,.profile{background:0 0;border:0}.app-header nav{align-items:center;gap:8px;display:flex}.profile{align-items:center;gap:10px;padding:4px 0 4px 8px;display:flex}.profile>span:first-child{color:#175a4d;background:#d9eee6;border-radius:50%;place-items:center;width:38px;height:38px;font-size:12px;font-weight:800;display:grid}.profile-copy{text-align:left}.profile-copy strong,.profile-copy small{display:block}.profile-copy strong{font-size:13px}.profile-copy small{color:var(--muted);font-size:10px}.page-shell{max-width:1360px;margin:auto;padding:34px clamp(20px,4vw,64px) 80px}.breadcrumbs{color:#71807a;align-items:center;gap:5px;margin-bottom:32px;font-size:12px;display:flex}.breadcrumbs span{align-items:center;gap:5px;display:flex}.breadcrumbs button{color:#567168;background:0 0;border:0;padding:0}.welcome{justify-content:space-between;align-items:center;gap:30px;padding:30px 0 52px;display:flex}.welcome h1,.book-title h1,.hero-copy h1{letter-spacing:-.025em;margin:10px 0 12px;font-family:Georgia,serif;font-size:clamp(38px,5vw,60px);font-weight:400}.welcome p,.book-title p{color:var(--muted)}.progress-ring{background:radial-gradient(closest-side,#f7f9f6 77%,transparent 78% 99%),conic-gradient(var(--green) 68%,#dce6e1 0);border-radius:50%;align-content:center;place-items:center;width:112px;height:112px;display:grid}.progress-ring strong{font-size:24px}.progress-ring span{color:var(--muted);font-size:10px}.section-heading{justify-content:space-between;align-items:end;margin:0 0 20px;display:flex}.section-heading h2{margin:7px 0 0;font-family:Georgia,serif;font-size:30px;font-weight:400}.catalog-count{color:var(--muted);font-size:12px}.subject-grid{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}.subject-card{border:1px solid var(--line);background:#fff;border-radius:14px;flex-direction:column;gap:16px;min-height:264px;padding:20px;transition:all .2s;display:flex}.subject-card.live{border-color:#7eb8a8;box-shadow:0 12px 30px #176b5910}.subject-card.live:hover{transform:translateY(-3px);box-shadow:0 16px 35px #176b5918}.subject-card.soon{background:#fbfcfb}.subject-icon{background:var(--accent);border-radius:11px;width:48px;height:48px}@supports (color:color-mix(in lab, red, red)){.subject-icon{background:color-mix(in srgb,var(--accent) 12%,white)}}.subject-icon{color:var(--accent);place-items:center;display:grid}.subject-card .status{text-transform:uppercase;letter-spacing:.1em;color:#86918d;font-size:10px}.status.available{color:var(--green);font-weight:800}.subject-card h3{margin:7px 0;font-family:Georgia,serif;font-size:22px;font-weight:400}.subject-card p{color:var(--muted);margin:0;font-size:13px;line-height:1.55}.subject-card>button{border:1px solid var(--line);background:#fff;border-radius:7px;justify-content:center;align-items:center;gap:8px;min-height:40px;margin-top:auto;font-size:12px;font-weight:700;display:flex}.subject-card.live>button{background:var(--green);color:#fff;border-color:var(--green)}.library-hero{background:#e7f1ec;border-radius:20px;grid-template-columns:370px 1fr;align-items:center;gap:65px;min-height:500px;padding:52px 7%;display:grid;overflow:hidden}.book-cover{color:#fff;background:linear-gradient(160deg,#164f46,#0a302b);border-radius:4px 15px 15px 4px;flex-direction:column;max-width:292px;height:390px;padding:25px;display:flex;position:relative;box-shadow:22px 25px 45px #163f3530}.book-cover:after{content:"";border-radius:inherit;background:radial-gradient(circle at 80% 20%,#62b79644,#0000 30%),repeating-linear-gradient(135deg,#0000 0 18px,#ffffff08 19px 20px);position:absolute;inset:0}.book-cover>*{z-index:1;position:relative}.book-cover>span,.book-cover small{letter-spacing:.15em;font-size:10px}.book-cover>svg{width:62px;height:62px;margin:auto}.book-cover h2{margin:0 0 15px;font-family:Georgia,serif;font-size:37px;font-weight:400;line-height:1.05}.book-cover p{color:#dceae5;font-size:10px;line-height:1.5}.hero-copy{max-width:690px}.hero-copy>p{color:#50635c;font-size:16px;line-height:1.7}.book-meta{color:#53645e;gap:25px;margin:24px 0;font-size:12px;display:flex}.book-meta span{align-items:center;gap:8px;display:flex}.book-meta svg{width:16px}.hero-actions{gap:10px;display:flex}.resume{border-top:1px solid #76988b40;grid-template-columns:1fr auto;gap:8px;margin-top:30px;padding-top:22px;font-size:12px;display:grid}.resume span{color:var(--muted)}.resume strong,.resume div span{display:block}.resume strong{margin-top:4px}.progress-track{background:#cddfd8;border-radius:10px;grid-column:1/-1;height:4px;overflow:hidden}.progress-track i{background:var(--green);height:100%;display:block}.library-row{margin-top:50px}.atlas-promo{color:#fff;background:#173f3a;border-radius:16px;grid-template-columns:1fr 420px;min-height:290px;padding:38px 44px;display:grid;overflow:hidden}.atlas-promo>div:first-child{max-width:640px}.atlas-promo h3{margin:12px 0;font-family:Georgia,serif;font-size:34px;font-weight:400}.atlas-promo p{color:#ccddd8;line-height:1.65}.atlas-promo .primary{color:#12493e;background:#d9f1e8}.atlas-silhouette{justify-content:center;align-items:center;gap:20px;display:flex;position:relative}.atlas-silhouette svg{opacity:.25;width:100px;height:100px}.atlas-silhouette svg:nth-child(2){opacity:.55;color:#f08d80;width:170px;height:170px}.book-title{justify-content:space-between;align-items:end;gap:30px;margin:45px 0;display:flex}.book-title>div{max-width:800px}.book-layout{grid-template-columns:280px 1fr;align-items:start;gap:50px;display:grid}.book-stats{position:sticky;top:110px}.mini-cover{color:#fff;background:#154f46;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:30px;height:260px;display:flex;box-shadow:0 18px 35px #173c3323}.mini-cover svg{width:80px;height:80px}.mini-cover span{letter-spacing:.18em}.book-stats dl{border:1px solid var(--line);background:#fff;border-radius:10px;margin:18px 0;padding:8px 18px}.book-stats dl div{border-bottom:1px solid var(--line);padding:14px 0}.book-stats dl div:last-child{border:0}.book-stats dt{color:var(--muted);font-size:11px}.book-stats dd{margin:5px 0 0;font-size:13px}.toc{border:1px solid var(--line);background:#fff;border-radius:14px;padding:28px}.toc article{border-top:1px solid var(--line);grid-template-columns:48px 1fr 44px;align-items:center;gap:18px;padding:20px 12px;display:grid}.toc article.current{background:#eff8f4;border-color:#0000;border-radius:8px}.chapter-number{color:#87958f;font:italic 20px Georgia}.toc h3{margin:0;font-family:Georgia,serif;font-size:19px;font-weight:400}.toc p{color:var(--muted);margin:6px 0;font-size:12px}.toc small{color:#7f8c87;font-size:10px}.toc article>button{background:#f1f5f3;border:0;border-radius:50%;place-items:center;width:40px;height:40px;display:grid}.reader-toolbar{z-index:40;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);background:#f7f9f6ed;justify-content:space-between;align-items:center;gap:20px;min-height:62px;padding:9px 4vw;display:flex;position:sticky;top:72px}.reader-toolbar .breadcrumbs{margin:0}.reader-toolbar>div{gap:8px;display:flex}.tool-btn{min-height:38px;padding:0 12px;font-size:12px}.tool-btn svg{width:15px}.tool-btn.selected{color:var(--green);border-color:#8dbbae}.reader-grid{grid-template-columns:250px minmax(0,720px) 250px;align-items:start;gap:42px;max-width:1500px;margin:auto;padding:42px 4vw 100px;display:grid}.reader-toc{flex-direction:column;display:flex;position:sticky;top:158px}.reader-toc>.eyebrow{margin:10px 12px 16px}.reader-toc button{text-align:left;color:#5d6b66;background:0 0;border:0;border-left:2px solid #0000;gap:10px;padding:11px 12px;font-size:12px;line-height:1.4;display:flex}.reader-toc button span{color:#95a19c;font-size:10px}.reader-toc button.active{border-left-color:var(--green);color:#174c41;background:#eaf4ef;font-weight:700}.reading-content{border:1px solid var(--line);background:#fff;border-radius:8px;padding:clamp(28px,5vw,64px)}.source-chip{color:var(--green);background:#eaf5f0;border-radius:999px;padding:7px 10px;font-size:10px}.reading-content h1{letter-spacing:-.03em;margin:25px 0 20px;font:400 clamp(38px,5vw,58px)/1.06 Georgia,serif}.reading-content .lead{color:#53615c;font:italic 21px/1.6 Georgia,serif}.reading-content h2{margin:45px 0 14px;font:400 27px Georgia,serif}.reading-content p{color:#3e4d48;font:16px/1.85 Georgia,serif}.system-figure{background:radial-gradient(circle at 50% 45%,#dceee7,#eff5f2);border-radius:10px;align-content:center;place-items:center;gap:28px;height:330px;margin:38px 0;display:grid;position:relative;overflow:hidden}.system-figure:before,.system-figure:after{content:"";border:1px solid #176b592a;border-radius:50%;position:absolute}.system-figure:before{width:270px;height:270px}.system-figure:after{width:180px;height:180px}.figure-core{color:#fff;z-index:1;background:#176b59;border-radius:50%;place-items:center;width:110px;height:110px;display:grid}.figure-core svg{width:56px;height:56px}.system-figure figcaption{color:#5b6d66;z-index:1;font-size:11px}.objectives{gap:10px;padding:0;list-style:none;display:grid}.objectives li{color:#485752;gap:10px;line-height:1.55;display:flex}.objectives svg{width:18px;color:var(--green);margin-top:2px}.key-concepts{border-left:3px solid var(--green);background:#f0f6f3;margin-top:40px;padding:25px 30px}.key-concepts li{margin:10px 0;line-height:1.5}.reader-nav{border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;align-items:center;margin-top:55px;padding-top:25px;font-size:12px;display:flex}.reader-aside{gap:14px;display:grid;position:sticky;top:158px}.aside-card{border:1px solid var(--line);background:#fff;border-radius:10px;padding:20px}.aside-card>svg{color:var(--green)}.aside-card h3{margin:15px 0 7px;font-family:Georgia,serif;font-size:18px;font-weight:400}.aside-card p{color:var(--muted);font-size:12px;line-height:1.55}.aside-card button{color:var(--green);background:0 0;border:0;padding:7px 0;font-size:12px;font-weight:800}.atlas-page{background:#eef2f0;height:100dvh;min-height:620px;overflow:hidden}.skip-link{z-index:200;background:#fff;padding:12px;position:fixed;top:-80px;left:12px}.skip-link:focus{top:12px}.atlas-header{border-bottom:1px solid var(--line);z-index:30;background:#fff;justify-content:space-between;align-items:center;height:72px;padding:0 20px;display:flex;position:relative}.atlas-header>div:first-child{align-items:center;gap:12px;display:flex}.atlas-header>div:first-child>div:last-child{flex-direction:column;gap:2px;display:flex}.atlas-header strong{font-size:15px}.atlas-progress{color:var(--muted);grid-template-columns:auto 130px auto;align-items:center;gap:10px;font-size:11px;display:grid}.atlas-progress>div{background:#dfe8e4;border-radius:4px;height:4px;overflow:hidden}.atlas-progress i{background:var(--green);height:100%;display:block}.atlas-workspace{grid-template-columns:220px minmax(0,1fr) 310px;height:calc(100dvh - 72px);display:grid}.system-rail,.focus-panel{z-index:10;background:#fff;position:relative}.system-rail{border-right:1px solid var(--line);padding:25px 14px;overflow-y:auto}.system-rail>.eyebrow{margin:0 11px 14px;display:block}.system-rail button{text-align:left;color:#596862;background:0 0;border:0;border-radius:7px;align-items:center;gap:10px;width:100%;min-height:39px;padding:0 11px;font-size:12px;display:flex}.system-rail button.active{color:#134d41;background:#e7f3ee;font-weight:800}.system-dot{border-radius:50%;width:7px;height:7px}.atlas-stage{grid-template-rows:1fr 42px;min-width:0;display:grid;position:relative}.canvas-wrap{background:#edf1ef;position:absolute;inset:0 0 42px}.scene{position:absolute;inset:0}.scene canvas{touch-action:none;width:100%;height:100%;display:block}.part-hover{z-index:25;pointer-events:none;color:#fff;text-transform:capitalize;background:#172a26ef;border-radius:6px;padding:8px 10px;font-size:12px;position:absolute}.part-hover[hidden]{display:none}.atlas-mode-tabs{z-index:15;border:1px solid var(--line);background:#ffffffec;border-radius:9px;padding:4px;display:flex;position:absolute;top:18px;left:50%;transform:translate(-50%);box-shadow:0 8px 24px #183c3420}.atlas-mode-tabs button{white-space:nowrap;background:0 0;border:0;border-radius:6px;min-height:36px;padding:0 13px;font-size:11px}.atlas-mode-tabs button[aria-selected=true]{color:#fff;background:#183f37}.atlas-search{z-index:16;border:1px solid var(--line);background:#fff;border-radius:8px;align-items:center;width:min(370px,100% - 32px);height:44px;padding:0 12px;display:flex;position:absolute;top:78px;left:50%;transform:translate(-50%);box-shadow:0 8px 24px #183c3416}.atlas-search>svg{color:#71817a;width:17px}.atlas-search input{border:0;outline:0;flex:1;min-width:0;height:100%;padding:0 10px;font-size:12px}.atlas-search>button{background:0 0;border:0}.search-results{border:1px solid var(--line);background:#fff;border-radius:8px;position:absolute;top:49px;left:0;right:0;overflow:hidden;box-shadow:0 12px 30px #183c3424}.search-results button{text-transform:capitalize;background:#fff;border:0;justify-content:space-between;align-items:center;width:100%;min-height:43px;padding:0 13px;font-size:12px;display:flex}.search-results button:hover{background:#edf6f2}.search-results small{color:var(--muted)}.camera-controls{z-index:15;border:1px solid var(--line);background:#ffffffed;border-radius:9px;padding:4px;display:flex;position:absolute;bottom:18px;left:50%;transform:translate(-50%);box-shadow:0 8px 24px #183c3420}.camera-controls button{background:0 0;border:0;border-radius:6px;flex-direction:column;justify-content:center;align-items:center;gap:3px;min-width:70px;min-height:45px;font-size:9px;display:flex}.camera-controls button.active{color:var(--green);background:#dff0e9}.camera-controls svg{width:16px}.atlas-loading{color:var(--green);flex-direction:column;justify-content:center;align-items:center;gap:10px;display:flex;position:absolute;inset:0}.atlas-loading strong{font-family:Georgia,serif;font-size:22px;font-weight:400}.atlas-loading span{color:var(--muted);font-size:11px}.guided-card,.simulation-card{z-index:15;border:1px solid var(--line);background:#fffffff2;border-radius:10px;width:290px;padding:18px;position:absolute;bottom:18px;left:18px;box-shadow:0 12px 30px #183c3420}.guided-card h2,.simulation-card h2{margin:8px 0;font:400 22px Georgia,serif}.guided-card p,.simulation-card p{color:var(--muted);font-size:12px;line-height:1.55}.guided-card>div{justify-content:space-between;display:flex}.guided-card button,.play-sim{border:1px solid var(--line);background:#fff;border-radius:6px;align-items:center;gap:7px;min-height:38px;padding:0 12px;font-size:11px;display:inline-flex}.segmented{background:#eef3f0;border-radius:7px;padding:3px;display:flex}.segmented button{background:0 0;border:0;border-radius:5px;flex:1;min-height:34px;font-size:11px}.segmented button.active{color:var(--green);background:#fff;font-weight:800}.simulation-card label{grid-template-columns:auto 1fr auto;align-items:center;gap:9px;margin:13px 0;font-size:11px;display:grid}.play-sim{color:#fff;background:#173f37;justify-content:center;width:100%}.play-sim svg{width:15px}.atlas-footer{border-top:1px solid var(--line);color:#71807a;background:#f9fbfa;grid-row:2;justify-content:space-between;align-items:center;padding:0 15px;font-size:10px;display:flex}.atlas-footer button{color:var(--green);background:0 0;border:0;align-items:center;gap:7px;font-size:10px;font-weight:800;display:flex}.atlas-footer svg{width:14px}.focus-panel{border-left:1px solid var(--line);padding:28px 24px;overflow-y:auto}.focus-panel h2{text-transform:capitalize;margin:12px 0 6px;font:400 29px/1.1 Georgia,serif}.focus-system{font-size:11px;font-weight:800}.focus-panel>p{color:#5d6b66;font-size:13px;line-height:1.65}.focus-panel dl{grid-template-columns:1fr 1fr;margin:20px 0;display:grid}.focus-panel dl div{border-block:1px solid var(--line);padding:13px 0}.focus-panel dt{color:var(--muted);font-size:10px}.focus-panel dd{text-transform:capitalize;margin:5px 0 0;font-size:12px}.focus-links{border-top:1px solid var(--line);margin-top:15px;display:grid}.focus-links button{border:0;border-bottom:1px solid var(--line);text-align:left;background:0 0;align-items:center;gap:9px;min-height:47px;font-size:12px;display:flex}.focus-links button span{background:#e6efeb;border-radius:99px;margin-left:auto;padding:2px 7px}.focus-links svg{width:17px;color:var(--green)}.text-alternative{background:#f0f5f2;border-radius:7px;margin-top:18px;padding:14px}.text-alternative strong{font-size:11px}.text-alternative p{margin-bottom:0;font-size:11px!important}.drawer-backdrop{z-index:100;background:#10211d66;justify-content:flex-end;display:flex;position:fixed;inset:0}.tool-drawer{background:#fff;width:min(440px,100%);height:100%;padding:70px 35px 35px;position:relative;overflow-y:auto;box-shadow:-20px 0 60px #0e211c28}.tool-drawer h2{margin:12px 0;font:400 34px Georgia,serif}.drawer-close{border:1px solid var(--line);background:#fff;border-radius:50%;place-items:center;width:42px;height:42px;display:grid;position:absolute;top:20px;right:20px}.tool-drawer textarea{resize:vertical;border:1px solid var(--line);border-radius:8px;width:100%;min-height:120px;margin:15px 0;padding:12px}.suggestions{flex-wrap:wrap;gap:7px;margin-top:18px;display:flex}.suggestions button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 10px;font-size:10px}.ai-reply{background:#eff7f3;border-radius:8px;gap:12px;margin-top:16px;padding:15px;display:flex}.ai-reply svg{color:var(--green)}.ai-reply p{margin:0;font-size:13px;line-height:1.6}.integration-note{color:var(--muted);margin-top:18px;line-height:1.5;display:block}.notes-list p{background:#f4f7f5;border-radius:7px;padding:13px;font-size:12px;line-height:1.5}.tool-drawer fieldset{border:0;margin:25px 0;padding:0}.tool-drawer legend{margin-bottom:10px;font-size:13px;font-weight:700;line-height:1.5}.tool-drawer fieldset label{border:1px solid var(--line);border-radius:7px;align-items:center;gap:9px;margin:7px 0;padding:10px;font-size:12px;display:flex}.tool-drawer fieldset label.correct{background:#eff7f3;border-color:#5e9d89}.score-card{color:#fff;background:#173f37;border-radius:9px;align-items:center;gap:15px;padding:20px;display:flex}.score-card strong{font:400 30px Georgia}.score-card span{font-size:12px}@media (width<=1100px){.subject-grid{grid-template-columns:repeat(2,1fr)}.reader-grid{grid-template-columns:210px minmax(0,1fr)}.reader-aside{display:none}.atlas-workspace{grid-template-columns:180px 1fr}.focus-panel,.atlas-progress{display:none}.library-hero{grid-template-columns:280px 1fr;gap:35px}.atlas-promo{grid-template-columns:1fr 300px}}@media (width<=760px){.auth-page{display:block}.auth-story{min-height:300px;padding:28px 24px}.auth-story>.brand{display:none}.auth-copy{margin-top:50px}.auth-copy h1{font-size:46px}.auth-copy>p,.feature-row,.body-orbit{display:none}.auth-form-wrap{padding:32px 22px}.mobile-brand{margin-bottom:40px;display:block}.auth-card h2{font-size:34px}.profile-copy,.profile>svg,.app-header .icon-btn{display:none}.app-header{height:64px;padding:0 15px}.page-shell{padding:24px 16px 60px}.welcome{align-items:flex-start;padding-bottom:35px}.welcome h1{font-size:38px}.progress-ring{flex:none;width:82px;height:82px}.subject-grid{grid-template-columns:1fr}.catalog-count{display:none}.library-hero{padding:28px 20px;display:block}.book-cover{height:310px;margin:0 auto 38px}.hero-copy h1{font-size:38px}.book-meta{flex-wrap:wrap}.hero-actions{flex-direction:column}.atlas-promo{grid-template-columns:1fr;padding:28px 22px}.atlas-silhouette{display:none}.book-title{display:block}.book-title .primary{margin-top:15px}.book-layout{display:block}.book-stats{margin-bottom:35px;position:static}.mini-cover{height:190px}.toc{padding:18px 12px}.toc article{grid-template-columns:36px 1fr 36px;padding:16px 4px}.reader-toolbar{padding:9px 12px;top:64px}.reader-toolbar .breadcrumbs,.reader-toolbar .tool-btn{display:none}.reader-toolbar>div{margin-left:auto}.reader-grid{padding:20px 14px 80px;display:block}.reader-toc{flex-direction:row;margin-bottom:14px;display:flex;position:static;overflow-x:auto}.reader-toc>.eyebrow{display:none}.reader-toc button{border-bottom:2px solid #0000;border-left:0;min-width:150px}.reader-toc button.active{border-bottom-color:var(--green)}.reading-content{padding:28px 20px}.reading-content h1{font-size:39px}.system-figure{height:260px}.reader-nav .primary,.reader-nav .secondary{padding:0 10px}.atlas-page{height:auto;min-height:100dvh;overflow:auto}.atlas-header{height:64px;position:sticky;top:0}.atlas-header .brand-mark{display:none}.atlas-header .eyebrow{font-size:8px}.atlas-workspace{flex-direction:column;height:auto;display:flex}.system-rail{border:0;border-top:1px solid var(--line);z-index:24;order:2;padding:10px;display:flex;position:sticky;top:64px;overflow-x:auto}.system-rail>.eyebrow{display:none}.system-rail button{width:auto;min-width:max-content;padding:0 12px}.atlas-stage{order:1;height:calc(100dvh - 118px);min-height:570px}.atlas-mode-tabs{top:12px}.atlas-search{top:64px}.guided-card,.simulation-card{width:calc(100% - 24px);bottom:72px;left:12px}.camera-controls{bottom:15px}.atlas-footer{display:none}.focus-panel{border:0;border-top:1px solid var(--line);order:3;min-height:420px;display:block}.atlas-progress,.atlas-header>.profile{display:none}}@media (width<=430px){.atlas-mode-tabs button{padding:0 8px;font-size:10px}.reading-content .lead{font-size:18px}.welcome .progress-ring{display:none}.hero-actions .primary,.hero-actions .secondary{width:100%}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}