@font-face{font-family:YouAiRound;src:url(/fonts/youai-l.woff2) format("woff2");font-display:swap;font-weight:300;font-style:normal}@font-face{font-family:YouAiRound;src:url(/fonts/youai-r.woff2) format("woff2");font-display:swap;font-weight:400;font-style:normal}@font-face{font-family:YouAiRound;src:url(/fonts/youai-m.woff2) format("woff2");font-display:swap;font-weight:500;font-style:normal}@font-face{font-family:YouAiRound;src:url(/fonts/youai-b.woff2) format("woff2");font-display:swap;font-weight:600 900;font-style:normal}@font-face{font-family:MapleMono;src:url(/assets/MapleMono-Regular-0QXLlCYq.ttf) format("truetype");font-display:swap;font-weight:400;font-style:normal}@font-face{font-family:MapleMono;src:url(/assets/MapleMono-Thin-BJNJ63Pe.ttf) format("truetype");font-display:swap;font-weight:100;font-style:normal}@font-face{font-family:MapleMono;src:url(/assets/MapleMono-ExtraLight-CrZCQdMU.ttf) format("truetype");font-display:swap;font-weight:200;font-style:normal}@font-face{font-family:MapleMono;src:url(/assets/MapleMono-Light-BZp3OIsF.ttf) format("truetype");font-display:swap;font-weight:300;font-style:normal}@font-face{font-family:MapleMono;src:url(/assets/MapleMono-Medium-DrNzANp1.ttf) format("truetype");font-display:swap;font-weight:500;font-style:normal}@font-face{font-family:MapleMono;src:url(/assets/MapleMono-SemiBold-QkpvwIuc.ttf) format("truetype");font-display:swap;font-weight:600;font-style:normal}@font-face{font-family:MapleMono;src:url(/assets/MapleMono-Bold-D8T3P_zY.ttf) format("truetype");font-display:swap;font-weight:700;font-style:normal}@font-face{font-family:MapleMono;src:url(/assets/MapleMono-ExtraBold-CWzD8FQf.ttf) format("truetype");font-display:swap;font-weight:800 900;font-style:normal}:root{font-family:MapleMono,YouAiRound,SFMono-Regular,Consolas,Liberation Mono,sans-serif;color:#17243a;background:#f5f7fb;font-synthesis:none;text-rendering:optimizeLegibility;--ink: #17243a;--muted: #68758a;--soft-muted: #8d99aa;--line: #dfe6f0;--surface: #ffffff;--surface-soft: #f8faff;--blue: #4f6df5;--teal: #18a69b;--orange: #ef9c39;--purple: #805fd6;--shadow: 0 18px 45px rgba(28, 52, 87, .08);--shadow-small: 0 8px 24px rgba(28, 52, 87, .07);--radius-large: 26px;--radius: 18px}*{box-sizing:border-box}html{min-width:320px;background:#f5f7fb}body{margin:0;min-width:320px;min-height:100vh;overflow-x:hidden}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:default}:focus-visible{outline:3px solid rgba(79,109,245,.36);outline-offset:3px}.app-shell{min-height:100vh;display:flex;flex-direction:column}main{flex:1}.page-width{width:min(1180px,calc(100% - 40px));margin:0 auto}.site-header{position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(223,230,240,.8);background:#f5f7fbe6;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.header-inner{width:min(1180px,calc(100% - 40px));height:76px;margin:0 auto;display:flex;align-items:center;gap:26px}.brand{display:inline-flex;align-items:center;gap:11px;min-width:210px}.brand-mark{width:38px;height:38px;border-radius:13px;display:grid;place-items:center;color:#fff;background:linear-gradient(145deg,#4f6df5,#755dec);box-shadow:0 7px 16px #4f6df53d}.brand strong,.brand small{display:block}.brand strong{font-size:15px;letter-spacing:-.02em}.brand small{margin-top:3px;color:var(--soft-muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:10px;letter-spacing:.02em}.header-search{height:42px;width:min(330px,31vw);display:flex;align-items:center;gap:9px;padding:0 12px;color:#8490a3;border:1px solid var(--line);border-radius:12px;background:#ffffffc2;transition:border-color .16s ease,box-shadow .16s ease}.header-search:focus-within{border-color:#4f6df5a3;box-shadow:0 0 0 4px #4f6df51a}.header-search input{width:100%;min-width:0;padding:0;border:0;outline:0;color:var(--ink);background:transparent;font-size:12px}.header-search input::placeholder{color:#9aa5b5}.clear-search{width:23px;height:23px;display:grid;place-items:center;flex:0 0 auto;border:0;border-radius:6px;color:#8e9aaa;background:transparent}.clear-search:hover{color:var(--ink);background:#eef2f8}.top-nav{margin-left:auto;display:flex;align-items:center;gap:6px}.top-nav a{position:relative;display:inline-flex;align-items:center;gap:6px;min-height:38px;padding:0 12px;border-radius:10px;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:12px;transition:color .16s ease,background .16s ease}.top-nav a:hover,.top-nav a.active{color:var(--ink);background:#e9eefb}.top-nav a.active{color:var(--blue)}.nav-count{min-width:17px;height:17px;display:inline-grid;place-items:center;padding:0 4px;border-radius:10px;color:#fff;background:var(--blue);font-size:9px}.mobile-search-wrap{display:none}.button{min-height:42px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 16px;border:1px solid transparent;border-radius:11px;font-family:MapleMono,YouAiRound,sans-serif;font-size:12px;font-weight:600;transition:transform .16s ease,box-shadow .16s ease,background .16s ease,border-color .16s ease}.button:hover{transform:translateY(-1px)}.button-primary{color:#fff;background:var(--blue);box-shadow:0 8px 18px #4f6df538}.button-primary:hover{background:#405edb;box-shadow:0 11px 22px #4f6df547}.button-dark{color:#fff;background:#17243a;box-shadow:0 8px 18px #17243a26}.button-dark:hover{background:#243550}.button-quiet{color:var(--ink);background:transparent}.button-quiet:hover{background:#e9eef8}.button-outline{color:var(--ink);border-color:var(--line);background:#fff}.button-outline:hover,.button-outline.is-selected{border-color:#4f6df566;color:var(--blue);background:#f6f8ff}.button-success{color:#fff;background:#1a9c82;box-shadow:0 8px 18px #1a9c8233}.hero{min-height:430px;display:grid;grid-template-columns:minmax(0,1.04fr) minmax(380px,.96fr);align-items:center;gap:42px;padding-top:54px;padding-bottom:38px}.eyebrow{margin:0 0 12px;color:var(--soft-muted);font-size:10px;font-weight:700;letter-spacing:.14em;line-height:1.4}.eyebrow-dot{width:7px;height:7px;display:inline-block;margin-right:8px;border-radius:50%;vertical-align:1px;background:var(--teal);box-shadow:0 0 0 4px #18a69b1f}h1,h2,h3,p{overflow-wrap:anywhere}h1,h2,h3{margin-top:0;color:var(--ink)}.hero h1{max-width:620px;margin-bottom:22px;font-family:MapleMono,YouAiRound,sans-serif;font-size:clamp(38px,5.6vw,70px);font-weight:800;letter-spacing:-.075em;line-height:1.12}h1 em,.hero h1 em,.about-hero h1 em,.quiz-header h1 em{color:var(--blue);font-style:normal}.hero-lede{max-width:500px;margin:0 0 26px;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:14px;line-height:1.95}.hero-actions{display:flex;flex-wrap:wrap;gap:10px}.hero-note{display:flex;align-items:center;flex-wrap:wrap;gap:9px 16px;margin-top:20px;color:#8a96a6;font-family:MapleMono,YouAiRound,sans-serif;font-size:11px}.hero-note-item{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}.hero-note-item img{width:14px;height:14px;flex:0 0 auto;object-fit:contain}.hero-visual{position:relative;min-height:330px;display:grid;place-items:center}.orbit{position:absolute;border:1px solid rgba(79,109,245,.16);border-radius:50%;transform:rotate(-20deg)}.orbit-one{width:340px;height:205px}.orbit-two{width:245px;height:330px;border-color:#18a69b29;transform:rotate(38deg)}.visual-card{position:relative;z-index:2;width:235px;min-height:235px;display:flex;flex-direction:column;justify-content:center;padding:30px;border:1px solid rgba(255,255,255,.82);border-radius:28px;background:linear-gradient(150deg,#fff,#eef2ff);box-shadow:0 25px 45px #3a509b29;transform:rotate(-4deg)}.visual-label{color:#8a96ad;font-size:9px;letter-spacing:.13em}.visual-card strong{margin:15px 0 4px;color:var(--blue);font-family:MapleMono,YouAiRound,sans-serif;font-size:50px;letter-spacing:-.08em}.visual-cn{color:var(--ink);font-family:MapleMono,YouAiRound,sans-serif;font-size:13px;font-weight:700}.visual-line{width:100%;height:1px;margin:20px 0 13px;background:#d7def0}.visual-mini{color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px}.visual-float{position:absolute;z-index:3;display:flex;align-items:center;gap:7px;padding:10px 13px;border:1px solid rgba(255,255,255,.9);border-radius:999px;color:#51627b;background:#ffffffe0;box-shadow:var(--shadow-small);font-size:10px;white-space:nowrap}.float-top{top:39px;right:6%;color:var(--teal);transform:rotate(4deg)}.float-bottom{bottom:35px;left:8%;transform:rotate(-5deg)}.float-tag-one{top:13px;left:1%;transform:rotate(-7deg)}.float-tag-two{top:6px;right:1%;transform:rotate(6deg)}.float-tag-three{top:141px;left:-1%;transform:rotate(4deg)}.float-tag-four{top:145px;right:-1%;transform:rotate(-5deg)}.float-tag-five{right:5%;bottom:3px;transform:rotate(5deg)}.mini-check{width:19px;height:19px;display:grid;place-items:center;border-radius:6px;color:#fff;background:var(--teal)}.visual-dot{position:absolute;display:block;border-radius:50%}.dot-a{top:42px;left:20%;width:11px;height:11px;background:#ef9c39}.dot-b{right:13%;bottom:60px;width:8px;height:8px;background:#d65d8a}.dot-c{bottom:30px;left:34%;width:5px;height:5px;background:var(--blue)}.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:9px}.stat-card{min-height:80px;display:flex;align-items:center;gap:12px;padding:15px 17px;border:1px solid var(--line);border-radius:16px;background:var(--surface);box-shadow:0 5px 18px #1c345706}.stat-icon{width:54px;height:54px;display:grid;place-items:center;flex:0 0 auto;border-radius:0;background:transparent}.stat-icon.blue{color:var(--blue);background:transparent}.stat-icon.teal{color:var(--teal);background:transparent}.stat-icon.orange{color:#d8852a;background:transparent}.stat-icon.purple{color:var(--purple);background:transparent}.stat-card strong,.stat-card span,.overview-card strong,.overview-card-copy>span{display:block}.stat-card strong{font-size:20px;letter-spacing:-.05em}.stat-card div>span{margin-top:3px;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:10px}.progress-stat{gap:10px}.stat-progress-ring{width:54px;height:54px;position:relative;display:grid;place-items:center;flex:0 0 auto}.stat-progress-ring svg{width:100%;height:100%;display:block;overflow:visible}.stat-progress-halo,.stat-progress-track,.stat-progress-value{fill:none}.stat-progress-halo{stroke:#4f6df51a;stroke-width:1}.stat-progress-track{stroke:#e3eaf4;stroke-width:6}.stat-progress-value{stroke:var(--blue);stroke-width:6;stroke-linecap:round;transition:stroke-dashoffset .52s cubic-bezier(.22,1,.36,1);filter:drop-shadow(0 2px 3px rgba(79,109,245,.24))}.stat-progress-count{fill:var(--ink);font-family:MapleMono,YouAiRound,sans-serif;font-size:12px;font-weight:700;letter-spacing:-.04em}@media (prefers-reduced-motion: reduce){.stat-progress-value{transition:none}}.section-block{padding-top:75px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:22px}.section-heading h2{margin-bottom:0;font-family:MapleMono,YouAiRound,sans-serif;font-size:23px;letter-spacing:-.055em}.section-heading>p,.section-heading>span{max-width:300px;margin:0 0 2px;color:var(--soft-muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px;line-height:1.7;text-align:right}.chapter-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.chapter-card{min-height:246px;display:flex;flex-direction:column;padding:20px;border:1px solid var(--line);border-top:4px solid var(--chapter-color);border-radius:17px;background:var(--surface);box-shadow:0 6px 20px #1c345706;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}.chapter-card:hover{border-color:color-mix(in srgb,var(--chapter-color) 35%,var(--line));box-shadow:var(--shadow);transform:translateY(-3px)}.chapter-card-top,.chapter-card-bottom,.chapter-meta{display:flex;align-items:center;justify-content:space-between}.chapter-number{color:var(--chapter-color);font-size:12px;font-weight:700}.chapter-icon{width:32px;height:32px;display:grid;place-items:center;border-radius:10px;color:var(--chapter-color);background:var(--chapter-soft)}.chapter-card-body{flex:1;padding-top:22px}.chapter-kicker{color:var(--chapter-color);font-size:10px}.chapter-card h3{margin:8px 0 10px;font-family:MapleMono,YouAiRound,sans-serif;font-size:17px;letter-spacing:-.045em}.chapter-card p{margin:0;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px;line-height:1.75}.chapter-card-bottom{display:block;margin-top:19px}.chapter-meta{margin-bottom:9px;color:var(--soft-muted);font-size:10px}.progress-track{width:100%;height:5px;overflow:hidden;border-radius:10px;background:#edf1f7}.progress-track span{height:100%;display:block;border-radius:inherit;transition:width .26s ease}.status-pill{display:inline-flex;align-items:center;gap:3px;padding:3px 6px;border-radius:5px;color:var(--muted);background:#f2f4f8;font-family:MapleMono,YouAiRound,sans-serif;font-size:9px}.status-pill.success{color:#188e76;background:#e8f8f2}.status-pill.accent{color:var(--blue);background:#edf0ff}.core-section{padding-bottom:77px}.core-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.core-card{position:relative;min-height:122px;display:flex;flex-direction:column;padding:16px;border:1px solid var(--line);border-radius:15px;background:#fff;transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease}.core-card:hover{border-color:#c4cffc;box-shadow:var(--shadow-small);transform:translateY(-2px)}.core-number{color:var(--soft-muted);font-size:9px}.core-card strong{margin-top:auto;color:var(--blue);font-size:16px;letter-spacing:-.06em}.core-card>span:not(.core-number){margin-top:4px;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:10px}.core-card>svg{position:absolute;right:14px;bottom:17px;color:#b1bdd0}.encouragement{min-height:136px;display:flex;align-items:center;gap:17px;margin-bottom:76px;padding:26px 30px;border-radius:22px;color:#fff;background:linear-gradient(110deg,#3d59d2,#6675e6);box-shadow:0 20px 38px #4f6df52e}.encouragement-icon{width:48px;height:48px;display:grid;place-items:center;flex:0 0 auto;border-radius:15px;color:#fff;background:#ffffff26}.encouragement .eyebrow{margin-bottom:5px;color:#ffffff9e}.encouragement h2{margin:0 0 4px;color:#fff;font-family:MapleMono,YouAiRound,sans-serif;font-size:18px;letter-spacing:-.045em}.encouragement p:last-child{margin:0;color:#ffffffbd;font-family:MapleMono,YouAiRound,sans-serif;font-size:11px}.encouragement .button{margin-left:auto;white-space:nowrap}.inner-page{padding-top:36px;padding-bottom:72px}.back-link{display:inline-flex;align-items:center;gap:7px;margin-bottom:25px;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px;transition:color .16s ease}.back-link:hover{color:var(--blue)}.chapter-hero{position:relative;min-height:238px;display:grid;grid-template-columns:85px minmax(0,1fr) 180px;align-items:center;gap:20px;overflow:hidden;margin-bottom:58px;padding:28px 35px;border-radius:var(--radius-large);background:linear-gradient(115deg,var(--chapter-soft),#fff)}.chapter-hero:after{position:absolute;right:-55px;bottom:-95px;width:250px;height:250px;border:1px solid var(--chapter-color);border-radius:50%;content:"";opacity:.12}.chapter-hero-number{color:var(--chapter-color);font-size:72px;font-weight:700;letter-spacing:-.12em;opacity:.85}.chapter-hero-copy .eyebrow{margin-bottom:7px}.chapter-hero h1{margin:0 0 12px;font-family:MapleMono,YouAiRound,sans-serif;font-size:30px;letter-spacing:-.07em}.chapter-hero-copy>p:not(.eyebrow){max-width:525px;margin:0;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:12px;line-height:1.8}.chapter-hero-meta{display:flex;flex-wrap:wrap;gap:15px;margin-top:22px;color:#8490a4;font-family:MapleMono,YouAiRound,sans-serif;font-size:10px}.chapter-hero-meta span{display:inline-flex;align-items:center;gap:5px}.chapter-hero-meta svg{color:var(--chapter-color)}.chapter-hero-progress{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:12px}.large-progress-ring{width:118px;height:118px;display:grid;place-items:center;border-radius:50%}.large-progress-ring>div{width:94px;height:94px;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:50%;background:#ffffffe0}.large-progress-ring strong{color:var(--ink);font-size:20px;letter-spacing:-.07em}.large-progress-ring span{margin-top:3px;color:var(--soft-muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:9px}.badge-preview{display:inline-flex;align-items:center;gap:5px;color:var(--chapter-color);font-family:MapleMono,YouAiRound,sans-serif;font-size:10px}.content-toolbar{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:21px}.content-toolbar h2{margin:0;font-family:MapleMono,YouAiRound,sans-serif;font-size:23px;letter-spacing:-.06em}.term-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.term-card{position:relative;min-height:201px;padding:20px 22px;border:1px solid var(--line);border-radius:17px;background:#fff;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}.term-card:hover{border-color:#c8d2fa;box-shadow:var(--shadow-small);transform:translateY(-2px)}.term-card.is-learned{border-color:#cde9e2}.term-card-number{margin-bottom:15px;color:#a2adbd;font-size:10px}.term-card-link{display:block;padding-right:34px}.term-title-row{display:flex;align-items:center;gap:8px}.term-title-row h3{margin:0;font-family:MapleMono,YouAiRound,sans-serif;font-size:17px;letter-spacing:-.055em}.term-english,.term-definition{font-family:MapleMono,YouAiRound,sans-serif}.term-english{margin:5px 0 13px;color:var(--blue);font-size:10px}.term-definition{min-height:37px;margin:0;color:var(--muted);font-size:11px;line-height:1.75}.learned-mark{display:inline-flex;align-items:center;gap:3px;color:#1a9c82;font-family:MapleMono,YouAiRound,sans-serif;font-size:9px;font-weight:600}.icon-button{border:0;cursor:pointer}.card-favorite{position:absolute;top:18px;right:18px;width:28px;height:28px;display:grid;place-items:center;border-radius:8px;color:#a4afbf;background:#f4f6fa;transition:color .16s ease,background .16s ease}.card-favorite:hover,.card-favorite.is-active{color:#de8b2e;background:#fff3de}.read-more{display:inline-flex;align-items:center;gap:5px;margin-top:14px;color:#8592a5;font-family:MapleMono,YouAiRound,sans-serif;font-size:10px;transition:color .16s ease}.term-card:hover .read-more{color:var(--blue)}.quiz-callout{display:grid;grid-template-columns:51px minmax(0,1fr) auto;align-items:center;gap:16px;margin-top:40px;padding:24px 26px;border-radius:19px;background:linear-gradient(105deg,var(--chapter-soft),#fff)}.quiz-callout-icon{width:51px;height:51px;display:grid;place-items:center;border-radius:15px;color:var(--chapter-color);background:#fff;box-shadow:0 6px 15px #1c34570f}.quiz-callout .eyebrow{margin-bottom:5px;color:var(--chapter-color)}.quiz-callout h2{margin:0 0 5px;font-family:MapleMono,YouAiRound,sans-serif;font-size:16px;letter-spacing:-.045em}.quiz-callout p:last-child{margin:0;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:10px}.quiz-callout-action{display:flex;align-items:center;gap:16px}.quiz-callout-action>span{color:var(--chapter-color);font-size:10px;white-space:nowrap}.chapter-switcher,.term-switcher{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:32px}.chapter-switcher a,.term-switcher a{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px;transition:color .16s ease}.chapter-switcher a:hover,.term-switcher a:hover{color:var(--blue)}.term-breadcrumb{display:flex;align-items:center;gap:7px;margin-bottom:29px;color:#a0aaba;font-size:10px}.term-breadcrumb a{color:var(--muted)}.term-breadcrumb a:hover{color:var(--blue)}.term-heading{display:grid;grid-template-columns:74px minmax(0,1fr) auto;align-items:center;gap:17px;margin-bottom:38px}.term-heading-index{width:74px;height:74px;display:grid;place-items:center;border-radius:21px;font-size:17px;font-weight:700}.term-heading-copy .eyebrow{margin-bottom:6px}.term-heading h1{margin:0 0 4px;font-family:MapleMono,YouAiRound,sans-serif;font-size:32px;letter-spacing:-.075em}.term-heading-english{margin:0;color:var(--blue);font-size:11px}.term-actions{display:flex;align-items:center;gap:9px}.definition-panel{position:relative;overflow:hidden;margin-bottom:15px;padding:28px 32px 31px;border-radius:21px;background:#eaf0ff}.definition-panel:after{position:absolute;right:35px;bottom:-76px;width:150px;height:150px;border:1px solid #8ea3ff;border-radius:50%;content:"";opacity:.3}.definition-panel .eyebrow{color:var(--blue)}.definition-panel h2{position:relative;z-index:1;max-width:780px;margin:0;font-family:MapleMono,YouAiRound,sans-serif;font-size:clamp(19px,2.5vw,27px);line-height:1.65;letter-spacing:-.065em}.term-info-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:15px}.info-card{min-height:179px;padding:22px 23px;border:1px solid var(--line);border-radius:17px;background:#fff}.analogy-card{background:#fff9ed;border-color:#f5e5c5}.scene-card{background:#edfaf7;border-color:#d3eee9}.takeaway-card{background:#f6f1ff;border-color:#e5dafb}.info-card-label{display:flex;align-items:center;gap:8px;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px;font-weight:700}.label-icon{width:27px;height:27px;display:grid;place-items:center;border-radius:8px;color:var(--blue);background:#ffffffb8}.analogy-card .label-icon{color:#d8852a}.scene-card .label-icon{color:var(--teal)}.takeaway-card .label-icon{color:var(--purple)}.info-card>p{margin:23px 0 0;color:var(--ink);font-family:MapleMono,YouAiRound,sans-serif;font-size:13px;line-height:1.85}.scene-list{display:flex;flex-wrap:wrap;gap:7px;margin-top:21px}.scene-list span{padding:7px 9px;border:1px solid rgba(24,166,155,.15);border-radius:7px;color:#277f77;background:#ffffffa3;font-family:MapleMono,YouAiRound,sans-serif;font-size:10px}.related-section{padding-top:55px}.section-heading.compact{align-items:end;margin-bottom:17px}.section-heading.compact h2{font-size:19px}.section-heading.compact>span{max-width:none;color:var(--soft-muted);font-size:10px}.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.related-card{min-height:83px;display:flex;align-items:center;gap:9px;padding:12px 13px;border:1px solid var(--line);border-radius:13px;background:#fff;transition:border-color .16s ease,transform .16s ease}.related-card:hover{border-color:#c7d2fa;transform:translateY(-2px)}.related-card>span{align-self:flex-start;color:#a5afbd;font-size:9px}.related-card div{min-width:0;flex:1}.related-card strong,.related-card small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.related-card strong{color:var(--ink);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px}.related-card small{margin-top:5px;color:var(--blue);font-size:9px}.related-card>svg{flex:0 0 auto;color:#aab5c5}.term-switcher{margin-top:51px;padding-top:25px;border-top:1px solid var(--line)}.term-switcher a{display:flex;flex-direction:column;align-items:flex-start;gap:6px}.term-switcher a.next-term{align-items:flex-end;text-align:right}.term-switcher small{color:var(--soft-muted);font-size:9px}.term-switcher strong{display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-family:MapleMono,YouAiRound,sans-serif;font-size:12px}.quiz-page{max-width:880px;padding-top:36px;padding-bottom:80px}.quiz-header{display:flex;align-items:end;justify-content:space-between;gap:30px;padding:34px 0 29px}.quiz-header h1{margin:0 0 13px;font-family:MapleMono,YouAiRound,sans-serif;font-size:34px;letter-spacing:-.075em;line-height:1.35}.quiz-header p:not(.eyebrow){margin:0;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:12px}.quiz-header-score{min-width:115px;padding:15px 17px;border:1px solid var(--line);border-radius:15px;background:#fff;text-align:right}.quiz-header-score span,.quiz-header-score em{display:block;color:var(--soft-muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:10px;font-style:normal}.quiz-header-score strong{display:block;margin:5px 0;color:var(--blue);font-size:27px;letter-spacing:-.09em}.quiz-header-score strong small{color:#a1acbc;font-size:13px}.quiz-header-score em{color:var(--blue);font-size:9px}.quiz-progress-row{display:flex;align-items:center;gap:17px;margin-bottom:13px;color:var(--soft-muted);font-size:10px}.quiz-progress-row .progress-track{flex:1}.question-card{padding:30px;border:1px solid var(--line);border-radius:21px;background:#fff;box-shadow:var(--shadow-small)}.question-top{display:flex;align-items:center;justify-content:space-between;color:var(--blue);font-size:10px}.question-top span:last-child{color:var(--soft-muted)}.question-card h2{max-width:680px;margin:25px 0 26px;font-family:MapleMono,YouAiRound,sans-serif;font-size:23px;line-height:1.6;letter-spacing:-.055em}.option-list{display:grid;gap:10px}.quiz-option{min-height:54px;display:flex;align-items:center;gap:13px;padding:9px 14px;border:1px solid var(--line);border-radius:12px;color:var(--ink);background:#fff;text-align:left;transition:border-color .16s ease,background .16s ease,transform .16s ease}.quiz-option:not(:disabled):hover{border-color:#bfcaf7;background:#f8f9ff;transform:translate(2px)}.quiz-option.is-correct{border-color:#a8dccf;color:#187d6a;background:#ecfaf6}.quiz-option.is-wrong{border-color:#f1b2aa;color:#bf5b4f;background:#fff3f0}.quiz-option.is-muted{opacity:.52}.option-letter{width:28px;height:28px;display:grid;place-items:center;flex:0 0 auto;border-radius:8px;color:#7c899d;background:#f1f4f8;font-size:10px;font-weight:700}.quiz-option.is-correct .option-letter{color:#fff;background:#1a9c82}.quiz-option.is-wrong .option-letter{color:#fff;background:#d9675b}.quiz-option>span:nth-child(2){flex:1;font-family:MapleMono,YouAiRound,sans-serif;font-size:12px;line-height:1.55}.answer-feedback{margin-top:21px;padding:18px 19px;border-radius:13px}.answer-feedback.correct{color:#187d6a;background:#ecfaf6}.answer-feedback.wrong{color:#b75a4f;background:#fff3f0}.feedback-heading{display:flex;align-items:center;gap:7px;font-family:MapleMono,YouAiRound,sans-serif;font-size:13px}.answer-feedback p{margin:9px 0 16px;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px;line-height:1.75}.answer-feedback .button{min-height:36px;padding:0 13px;font-size:10px}.result-page{max-width:720px}.result-card{position:relative;overflow:hidden;margin-top:20px;padding:55px 38px 38px;border:1px solid var(--line);border-radius:25px;background:#fff;text-align:center;box-shadow:var(--shadow)}.result-confetti span{position:absolute;display:block;width:8px;height:18px;border-radius:5px;opacity:.8}.result-confetti span:nth-child(1){top:37px;left:17%;background:var(--teal);transform:rotate(-24deg)}.result-confetti span:nth-child(2){top:64px;right:16%;background:var(--orange);transform:rotate(26deg)}.result-confetti span:nth-child(3){top:31px;right:30%;background:var(--purple);transform:rotate(8deg)}.result-confetti span:nth-child(4){top:80px;left:29%;background:#d65d8a;transform:rotate(44deg)}.result-confetti span:nth-child(5){top:104px;right:24%;background:var(--blue);transform:rotate(-16deg)}.result-icon{width:67px;height:67px;display:grid;place-items:center;margin:0 auto 20px;border-radius:21px;color:#d8852a;background:#fff3df}.result-card h1{margin:0 0 12px;font-family:MapleMono,YouAiRound,sans-serif;font-size:27px;letter-spacing:-.07em}.result-card>p:not(.eyebrow):not(.best-score){max-width:450px;margin:0 auto;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:12px;line-height:1.8}.result-score{margin:25px 0;color:var(--blue)}.result-score strong{font-size:54px;letter-spacing:-.12em}.result-score span{color:#9ba7b8;font-size:16px}.result-badge{max-width:330px;display:flex;align-items:center;gap:11px;margin:0 auto;padding:13px 15px;border:1px solid #f0e2c8;border-radius:13px;background:#fffbf3;text-align:left}.badge-medal{width:37px;height:37px;display:grid;place-items:center;flex:0 0 auto;border-radius:12px;color:#d8852a;background:#fff1d5}.result-badge div{flex:1}.result-badge strong,.result-badge small{display:block;font-family:MapleMono,YouAiRound,sans-serif}.result-badge strong{color:var(--ink);font-size:11px}.result-badge small{margin-top:3px;color:var(--muted);font-size:9px}.result-badge>svg{color:#d8852a}.best-score{margin:18px 0 0!important;color:var(--blue)!important;font-size:10px!important}.result-actions{display:flex;justify-content:center;gap:9px;margin-top:27px}.search-page{padding-bottom:88px}.search-intro{padding:52px 0 40px;text-align:center}.search-intro h1{margin:0 0 10px;font-family:MapleMono,YouAiRound,sans-serif;font-size:31px;letter-spacing:-.07em}.search-intro>p:not(.eyebrow){margin:0;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:12px}.large-search{max-width:610px;height:55px;display:flex;align-items:center;gap:11px;margin:26px auto 0;padding:6px 7px 6px 17px;border:1px solid #cdd7eb;border-radius:15px;color:#8290a5;background:#fff;box-shadow:0 10px 25px #1c34570f}.large-search:focus-within{border-color:#9cacfa;box-shadow:0 0 0 4px #4f6df51a}.large-search input{min-width:0;flex:1;border:0;outline:0;color:var(--ink);background:transparent;font-size:12px}.large-search .button{min-height:41px}.search-suggestions{max-width:610px;margin:0 auto;text-align:center}.search-suggestions>div{display:flex;justify-content:center;flex-wrap:wrap;gap:8px}.search-suggestions a{display:inline-flex;align-items:center;gap:6px;padding:8px 11px;border:1px solid var(--line);border-radius:8px;color:var(--muted);background:#fff;font-size:10px;transition:border-color .16s ease,color .16s ease}.search-suggestions a:hover{border-color:#bdcaf6;color:var(--blue)}.search-results{max-width:900px;margin:0 auto}.search-group{margin-top:34px}.search-group-heading{display:flex;align-items:baseline;gap:10px;margin-bottom:13px}.search-group-heading>span:first-child{font-size:11px;font-weight:700}.search-group-heading h2{margin:0;font-family:MapleMono,YouAiRound,sans-serif;font-size:16px;letter-spacing:-.04em}.search-group-heading>span:last-child{margin-left:auto;color:var(--soft-muted);font-size:9px}.search-result-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.search-result{min-height:99px;display:flex;align-items:flex-start;gap:11px;padding:15px;border:1px solid var(--line);border-radius:13px;background:#fff;transition:border-color .16s ease,box-shadow .16s ease}.search-result:hover{border-color:#c7d2fa;box-shadow:var(--shadow-small)}.result-number{color:#a5afbd;font-size:9px}.search-result>div{min-width:0;flex:1}.search-result h3{margin:0 0 4px;font-family:MapleMono,YouAiRound,sans-serif;font-size:13px}.search-result p{margin:0 0 8px;color:var(--blue);font-size:9px}.search-result div>span{display:-webkit-box;overflow:hidden;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:10px;line-height:1.55;-webkit-box-orient:vertical;-webkit-line-clamp:2}.search-result>svg{flex:0 0 auto;margin-top:2px;color:#aeb9c8}.empty-state{max-width:530px;margin:35px auto 0;padding:50px 25px;border:1px dashed #cbd5e5;border-radius:20px;background:#fff9;text-align:center}.empty-icon{width:56px;height:56px;display:grid;place-items:center;margin:0 auto 16px;border-radius:17px;color:var(--blue);background:#edf0ff}.empty-state h1,.empty-state h2{margin:0 0 8px;font-family:MapleMono,YouAiRound,sans-serif;font-size:20px;letter-spacing:-.05em}.empty-state p{margin:0 0 21px;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px}.progress-page{max-width:1050px}.progress-heading{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:34px 0 36px}.progress-heading h1{margin:0 0 10px;font-family:MapleMono,YouAiRound,sans-serif;font-size:32px;letter-spacing:-.075em}.progress-heading p:not(.eyebrow){margin:0;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:12px}.total-progress{display:flex;align-items:center;gap:14px}.total-progress>span{color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px}.progress-overview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.overview-card{min-height:128px;display:flex;align-items:center;gap:16px;padding:17px 18px;border:1px solid var(--line);border-radius:15px;background:#fff}.overview-card .stat-icon,.overview-card .progress-asset-icon{width:92px;height:92px}.overview-card-copy{min-width:0;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.overview-card strong{margin:0;font-size:32px;line-height:1;letter-spacing:-.08em}.overview-card-copy>span{margin-top:9px;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:12px;line-height:1.3;white-space:nowrap}.progress-section{margin-top:58px}.badge-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:11px}.badge-card{min-height:135px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:13px 9px;border:1px solid var(--line);border-radius:15px;background:#f7f9fc;text-align:center}.badge-card.earned{border-color:color-mix(in srgb,var(--badge-color) 28%,#dfe6f0);background:#fff;box-shadow:0 7px 20px #1c34570d}.badge-icon{width:43px;height:43px;display:grid;place-items:center;margin-bottom:9px;border-radius:14px;color:#aab4c2;background:#edf1f6}.badge-card.earned .badge-icon{color:var(--badge-color);background:color-mix(in srgb,var(--badge-color) 12%,#fff)}.badge-card strong,.badge-card small{font-family:MapleMono,YouAiRound,sans-serif}.badge-card strong{color:var(--ink);font-size:10px}.badge-card small{margin-top:5px;color:var(--soft-muted);font-size:8px}.chapter-progress-list{overflow:hidden;border:1px solid var(--line);border-radius:16px;background:#fff}.chapter-progress-row{min-height:64px;display:grid;grid-template-columns:40px 170px minmax(90px,1fr) 62px 17px;align-items:center;gap:15px;padding:10px 17px;border-bottom:1px solid #edf0f5;transition:background .16s ease}.chapter-progress-row:last-child{border-bottom:0}.chapter-progress-row:hover{background:#fafbff}.row-number{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;font-size:10px;font-weight:700}.row-title strong,.row-title span{display:block;font-family:MapleMono,YouAiRound,sans-serif}.row-title strong{font-size:11px}.row-title span{margin-top:4px;color:var(--soft-muted);font-size:9px}.row-score{color:var(--muted);font-size:9px;text-align:right}.chapter-progress-row>svg{color:#aab6c7}.favorite-list{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}.favorite-list a{display:flex;align-items:center;gap:10px;padding:13px 15px;border:1px solid var(--line);border-radius:12px;background:#fff}.favorite-list a>svg:first-child{color:#df922f}.favorite-list a>span{min-width:0;flex:1}.favorite-list strong,.favorite-list small{display:block;overflow:hidden;font-family:MapleMono,YouAiRound,sans-serif;text-overflow:ellipsis;white-space:nowrap}.favorite-list strong{font-size:11px}.favorite-list small{margin-top:3px;color:var(--blue);font-size:9px}.favorite-list a>svg:last-child{color:#aab6c7}.about-page{max-width:1000px}.about-hero{max-width:700px;padding:62px 0 49px}.about-hero h1{margin:0 0 20px;font-family:MapleMono,YouAiRound,sans-serif;font-size:clamp(36px,5vw,57px);letter-spacing:-.09em;line-height:1.2}.about-hero>p:last-child{max-width:530px;margin:0;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:13px;line-height:1.9}.about-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.about-card{min-height:275px;padding:25px;border:1px solid var(--line);border-radius:19px;background:#fff}.about-purpose{background:#eff2ff;border-color:#dbe2ff}.about-card-icon{width:43px;height:43px;display:grid;place-items:center;margin-bottom:25px;border-radius:13px;color:var(--blue);background:#fff}.about-card-icon.teal{color:var(--teal);background:#e8f8f5}.about-card h2{max-width:320px;margin:0 0 13px;font-family:MapleMono,YouAiRound,sans-serif;font-size:19px;line-height:1.5;letter-spacing:-.055em}.about-card>p:last-child{margin:0;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px;line-height:1.8}.source-note{display:grid;grid-template-columns:49px minmax(0,1fr);gap:16px;margin-top:15px;padding:25px;border:1px solid #e6e2d9;border-radius:19px;background:#fffdf8}.source-note-icon{width:49px;height:49px;display:grid;place-items:center;border-radius:15px;color:#bd7b2c;background:#fff2d9}.source-note h2{margin:0 0 11px;font-family:MapleMono,YouAiRound,sans-serif;font-size:17px;letter-spacing:-.04em}.source-note p:not(.eyebrow){max-width:780px;margin:0;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px;line-height:1.85}.source-note .source-thanks{margin-top:11px;color:#b77a31}.about-footer-links{display:flex;justify-content:space-between;gap:15px;margin-top:31px}.about-footer-links a{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px}.about-footer-links a:hover{color:var(--blue)}.site-footer{border-top:1px solid var(--line);background:#ffffff59}.footer-inner{width:min(1180px,calc(100% - 40px));min-height:70px;display:flex;align-items:center;gap:20px;margin:0 auto;color:#98a3b3;font-family:MapleMono,YouAiRound,sans-serif;font-size:10px}.footer-inner span:first-child{color:var(--ink);font-weight:700}.footer-inner a{margin-left:auto}.footer-inner a:hover{color:var(--blue)}@media (max-width: 1040px){.hero{grid-template-columns:minmax(0,1fr) minmax(300px,.85fr);gap:18px}.chapter-grid{grid-template-columns:repeat(2,1fr)}.core-grid{grid-template-columns:repeat(5,1fr)}.chapter-hero{grid-template-columns:65px minmax(0,1fr) 150px;padding-right:24px;padding-left:24px}.chapter-hero-number{font-size:56px}.term-info-grid{grid-template-columns:repeat(2,1fr)}.takeaway-card{grid-column:span 2;min-height:auto}.badge-grid{grid-template-columns:repeat(5,1fr)}}@media (max-width: 760px){.page-width,.header-inner,.footer-inner{width:min(100% - 28px,600px)}.site-header{position:relative}.header-inner{height:68px;gap:12px}.brand{min-width:0;flex:1}.brand small{display:none}.header-inner>.header-search{display:none}.top-nav{gap:0}.top-nav a{min-height:34px;padding:0 7px;font-size:10px}.top-nav a svg{display:none}.mobile-search-wrap{display:block;padding:0 14px 11px}.mobile-search-wrap .header-search{width:100%;height:40px;padding-left:11px;background:#fff}.search-submit{min-width:48px;flex:0 0 auto;min-height:28px;display:inline-flex;align-items:center;justify-content:center;padding:0 9px;border:0;border-radius:7px;color:#fff;background:var(--blue);font-family:MapleMono,YouAiRound,sans-serif;font-size:10px;line-height:1;white-space:nowrap}.hero{min-height:0;display:block;padding-top:44px}.hero h1{font-size:46px}.hero-lede{font-size:13px;line-height:1.85}.hero-visual{min-height:280px;margin-top:18px}.orbit-one{width:300px;height:180px}.orbit-two{width:210px;height:290px}.float-top{right:3%}.float-bottom{left:2%}.stat-strip{grid-template-columns:repeat(2,1fr);gap:9px}.stat-card{min-height:70px;padding:12px}.stat-card strong{font-size:18px}.section-block{padding-top:53px}.section-heading{display:block}.section-heading>p{margin-top:9px;text-align:left}.section-heading h2{font-size:20px}.chapter-grid,.term-grid,.search-result-grid,.favorite-list,.about-grid{grid-template-columns:1fr}.chapter-card{min-height:224px}.core-section{padding-bottom:54px}.core-grid{grid-template-columns:repeat(2,1fr)}.core-card{min-height:107px}.core-card:last-child{grid-column:span 2}.encouragement{display:grid;grid-template-columns:48px minmax(0,1fr);margin-bottom:54px;padding:22px}.encouragement .button{grid-column:span 2;margin:5px 0 0}.inner-page{padding-top:27px;padding-bottom:57px}.chapter-hero{min-height:0;grid-template-columns:53px minmax(0,1fr);gap:13px;margin-bottom:42px;padding:22px 19px}.chapter-hero-number{align-self:start;font-size:44px}.chapter-hero h1{font-size:24px}.chapter-hero-copy>p:not(.eyebrow){font-size:11px}.chapter-hero-meta{gap:9px 13px;margin-top:15px}.chapter-hero-progress{grid-column:span 2;flex-direction:row;justify-content:flex-start;margin-top:3px}.large-progress-ring{width:82px;height:82px}.large-progress-ring>div{width:65px;height:65px}.large-progress-ring strong{font-size:15px}.content-toolbar{align-items:center}.content-toolbar h2{font-size:20px}.content-toolbar .button{min-height:37px;padding:0 10px;font-size:10px}.term-card{min-height:188px}.quiz-callout{grid-template-columns:43px minmax(0,1fr);gap:12px;padding:19px}.quiz-callout-icon{width:43px;height:43px}.quiz-callout-action{grid-column:span 2;justify-content:space-between;margin-top:3px}.chapter-switcher a{font-size:10px}.term-heading{grid-template-columns:58px minmax(0,1fr);gap:12px}.term-heading-index{width:58px;height:58px;border-radius:17px;font-size:13px}.term-heading h1{font-size:26px}.term-actions{grid-column:span 2}.term-actions .button{flex:1}.definition-panel{padding:22px 20px 24px}.definition-panel h2{font-size:18px}.term-info-grid{grid-template-columns:1fr}.takeaway-card{grid-column:auto}.info-card{min-height:150px}.related-grid{grid-template-columns:repeat(2,1fr)}.term-switcher{margin-top:36px}.quiz-header{align-items:start;padding-top:20px}.quiz-header h1{font-size:28px}.quiz-header-score{min-width:92px;padding:11px}.quiz-header-score strong{font-size:22px}.question-card{padding:21px 17px}.question-card h2{margin-top:20px;font-size:19px}.result-card{padding:45px 19px 27px}.result-card h1{font-size:23px}.result-actions .button{flex:1;padding:0 10px}.search-intro{padding-top:37px}.search-intro h1{font-size:25px}.large-search{height:51px}.progress-heading{align-items:flex-start;display:block;padding-top:20px}.progress-heading h1{font-size:28px}.total-progress{justify-content:flex-start;margin-top:25px}.progress-overview-grid{grid-template-columns:repeat(2,1fr)}.overview-card{min-height:88px;gap:10px;padding:12px}.overview-card .stat-icon,.overview-card .progress-asset-icon{width:56px;height:56px}.overview-card strong{font-size:24px}.overview-card-copy>span{margin-top:5px;font-size:10px;white-space:normal}.badge-grid{grid-template-columns:repeat(2,1fr)}.badge-card:last-child{grid-column:span 2}.chapter-progress-row{grid-template-columns:36px minmax(0,1fr) 17px;gap:10px;padding:10px 11px}.chapter-progress-row .progress-track,.row-score{display:none}.about-hero{padding-top:35px}.about-hero h1{font-size:39px}.about-card{min-height:0}.about-footer-links{display:grid}.footer-inner{min-height:82px;flex-wrap:wrap;gap:7px 15px;padding:15px 0}.footer-inner a{margin-left:0}}.hero .hero-title,.hero .hero-slogan,.hero .hero-slogan em{font-family:MapleMono,YouAiRound,sans-serif}.hero .hero-title{color:var(--blue)}.hero .hero-slogan,.hero .hero-slogan em{font-weight:300}h1,h2,h3,p{overflow-wrap:break-word}.definition-panel h2{max-width:none}.term-example{display:flex;align-items:flex-start;gap:11px;margin:19px 0 0;padding:11px 14px;border-left:3px solid var(--chapter-color, var(--blue));border-radius:0 11px 11px 0;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:calc(13px * var(--font-scale-factor));line-height:1.75;background:color-mix(in srgb,var(--chapter-color, var(--blue)) 6%,var(--surface))}.term-example>span:first-child{flex:0 0 auto;color:var(--chapter-color, var(--blue));font-weight:700;white-space:nowrap}.term-example>.term-example-copy{flex:1 1 auto;min-width:0;color:var(--muted);font-weight:400;overflow-wrap:anywhere;white-space:normal}.chapter-hero-copy>p:not(.eyebrow){max-width:760px}.sequence-number,.chapter-number,.core-number,.info-card-index,.chapter-hero-number,.term-card-number,.term-heading-index,.term-breadcrumb>span:last-child,.related-card>span,.search-group-heading>span:first-child,.result-number,.row-number,.question-top>span:first-child{color:var(--blue)!important;font-family:MapleMono,YouAiRound,sans-serif!important;font-weight:800!important;font-variant-numeric:tabular-nums}.chapter-number{font-size:17px!important}.core-number{margin-bottom:14px;font-size:17px!important}.info-card-index{font-size:calc(15px * var(--font-scale-factor))!important}.chapter-hero-number{font-size:78px!important;opacity:1}.term-card-number{margin-bottom:18px;font-size:17px!important}.term-heading-index{font-size:22px!important}.term-breadcrumb>span:last-child,.related-card>span,.search-group-heading>span:first-child,.result-number{font-size:calc(14px * var(--font-scale-factor))!important}.row-number{font-size:15px!important}.question-top>span:first-child{font-size:14px!important}.term-info-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;align-items:stretch}.info-card{--info-accent: var(--blue);position:relative;min-height:320px;display:flex;flex-direction:column;overflow:hidden;padding:28px 27px 30px;border:1px solid var(--line);border-radius:22px;background:var(--surface)!important;box-shadow:0 16px 36px #1c345711}.info-card:before{position:absolute;top:0;left:27px;width:58px;height:3px;border-radius:0 0 4px 4px;background:var(--info-accent);content:""}.analogy-card{--info-accent: var(--blue);border-color:color-mix(in srgb,var(--blue) 18%,var(--line))}.scene-card{--info-accent: var(--teal);border-color:color-mix(in srgb,var(--teal) 18%,var(--line))}.takeaway-card{--info-accent: var(--purple);border-color:color-mix(in srgb,var(--purple) 18%,var(--line))}.info-card-label{display:flex;align-items:center;gap:10px;color:var(--ink)!important;font-family:MapleMono,YouAiRound,sans-serif!important;font-size:calc(14px * var(--font-scale-factor))!important;font-weight:700;letter-spacing:-.035em;white-space:nowrap}.info-card-index{color:var(--blue);font-family:MapleMono,YouAiRound,sans-serif;font-size:calc(12px * var(--font-scale-factor));font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:0}.info-card .label-icon{width:34px;height:34px;flex:0 0 auto;border:1px solid color-mix(in srgb,var(--info-accent) 20%,var(--line));border-radius:11px;color:var(--info-accent)!important;background:color-mix(in srgb,var(--info-accent) 9%,var(--surface))}.info-card>p{margin:31px 0 0;color:var(--muted)!important;font-family:MapleMono,YouAiRound,sans-serif!important;font-size:calc(15px * var(--font-scale-factor))!important;line-height:1.95!important;letter-spacing:-.025em}.scene-list .scene-item,.scene-list .scene-item>span{color:var(--muted)!important;font-family:MapleMono,YouAiRound,sans-serif!important;font-size:calc(15px * var(--font-scale-factor))!important;line-height:1.9!important}.scene-list .scene-item{display:flex;align-items:flex-start;gap:11px}.scene-list .scene-item .scene-marker{width:26px;height:26px;border:1px solid color-mix(in srgb,var(--info-accent) 24%,var(--line));border-radius:9px;color:var(--info-accent)!important;background:color-mix(in srgb,var(--info-accent) 8%,var(--surface));font-size:calc(11px * var(--font-scale-factor))!important;line-height:1}@media (max-width: 1040px){.term-info-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.takeaway-card{grid-column:span 2}}@media (max-width: 760px){.chapter-hero-number{font-size:50px!important}.term-info-grid{grid-template-columns:1fr}.takeaway-card{grid-column:auto}.info-card{min-height:0;padding:24px 22px 27px}.info-card:before{left:22px}.info-card-label{font-size:calc(14px * var(--font-scale-factor))!important}.info-card>p,.scene-list .scene-item,.scene-list .scene-item>span{font-size:calc(15px * var(--font-scale-factor))!important}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}:root{--font-scale-factor: 1}html[data-font-size="2"]{--font-scale-factor: 1.08}html[data-font-size="3"]{--font-scale-factor: 1.16}html[data-font-size="4"]{--font-scale-factor: 1.24}html[data-font-size="5"]{--font-scale-factor: 1.32}.brand-mark{overflow:hidden;background:#ffd33d}.brand-mark img{width:100%;height:100%;display:block;object-fit:cover}.header-tools{position:relative;display:flex;align-items:center;gap:6px;margin-left:auto}.font-size-picker{position:relative}.font-size-toggle,.theme-toggle{height:36px;display:inline-flex;align-items:center;justify-content:center;gap:5px;border:1px solid var(--line);border-radius:10px;color:var(--muted);background:#ffffffb8;transition:color .16s ease,background .16s ease,border-color .16s ease}.font-size-toggle{min-width:42px;padding:0 8px}.font-size-toggle:hover,.font-size-toggle[aria-expanded=true],.theme-toggle:hover{border-color:#bdcaf6;color:var(--blue);background:#eef2ff}.font-size-a{font-family:MapleMono,YouAiRound,sans-serif;font-size:17px;font-weight:700}.font-size-toggle>span:last-child{font-size:10px;font-weight:700}.theme-toggle{padding:0 9px}.theme-toggle span{font-family:MapleMono,YouAiRound,sans-serif;font-size:10px}.font-size-popover{position:absolute;top:calc(100% + 10px);right:0;z-index:30;width:192px;padding:15px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:var(--shadow)}.font-popover-title{color:var(--ink);font-family:MapleMono,YouAiRound,sans-serif;font-size:12px;font-weight:700}.font-options{display:grid;grid-template-columns:repeat(5,1fr);gap:5px;margin-top:12px}.font-options button{height:32px;border:1px solid var(--line);border-radius:8px;color:var(--muted);background:#f8faff;font-size:11px}.font-options button:hover,.font-options button.selected{border-color:var(--blue);color:#fff;background:var(--blue)}.font-size-popover p{margin:11px 0 0;color:var(--soft-muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:9px}.hero .hero-title{max-width:none;margin:0 0 17px;font-size:clamp(44px,7.6vw,82px);letter-spacing:-.09em;line-height:1.02;white-space:nowrap}.hero .hero-slogan{margin:0 0 21px;color:var(--ink);font-family:MapleMono,YouAiRound,sans-serif;font-size:clamp(28px,4.3vw,49px);font-weight:300;letter-spacing:-.075em;line-height:1.22}.hero-lede span{display:block}.hero-lede{max-width:680px;margin-bottom:27px;color:#53647c;font-size:15px;line-height:1.85}.section-heading>p.map-note{max-width:none;white-space:nowrap}.inline-term-english{color:var(--blue);font-family:MapleMono,YouAiRound,SFMono-Regular,Consolas,monospace;font-size:1em;font-weight:600;letter-spacing:-.045em}.term-title-row h3,.term-heading h1{line-height:1.45}.term-heading h1 .inline-term-english{color:var(--blue)}.scene-list{display:grid;gap:15px;margin-top:31px}.scene-list .scene-item{display:flex;align-items:flex-start;gap:11px;padding:0;border:0;color:#277f77;background:transparent;font-family:MapleMono,YouAiRound,sans-serif;font-size:10px;line-height:1.65}.scene-list .scene-item>span{padding:0;border:0;border-radius:0;color:inherit;background:transparent;font-family:inherit;font-size:inherit}.scene-list .scene-marker{width:26px;height:26px;display:grid;place-items:center;flex:0 0 auto;border-radius:9px;color:var(--teal);background:color-mix(in srgb,var(--info-accent) 8%,var(--surface));font-size:9px;font-weight:700}.info-card{min-height:320px}.source-note h2{margin-bottom:0;line-height:1.65}.copyright{color:#a08c66;font-family:MapleMono,YouAiRound,SFMono-Regular,Consolas,monospace!important;font-size:9px!important;letter-spacing:.04em}html[data-font-size] .button{font-size:calc(12px * var(--font-scale-factor))}html[data-font-size] .brand strong,html[data-font-size] .brand small,html[data-font-size] .header-search input,html[data-font-size] .top-nav a,html[data-font-size] .theme-toggle span,html[data-font-size] .hero-note,html[data-font-size] .stat-card div>span,html[data-font-size] .chapter-card p,html[data-font-size] .chapter-kicker,html[data-font-size] .chapter-meta,html[data-font-size] .status-pill,html[data-font-size] .core-card>span:not(.core-number),html[data-font-size] .back-link,html[data-font-size] .chapter-hero-copy>p:not(.eyebrow),html[data-font-size] .chapter-hero-meta,html[data-font-size] .badge-preview,html[data-font-size] .term-definition,html[data-font-size] .learned-mark,html[data-font-size] .read-more,html[data-font-size] .quiz-callout p:last-child,html[data-font-size] .term-breadcrumb,html[data-font-size] .term-heading-english,html[data-font-size] .info-card-label,html[data-font-size] .info-card>p,html[data-font-size] .scene-list,html[data-font-size] .scene-list .scene-item,html[data-font-size] .scene-list .scene-marker,html[data-font-size] .related-card strong,html[data-font-size] .related-card small,html[data-font-size] .quiz-header p:not(.eyebrow),html[data-font-size] .quiz-header-score span,html[data-font-size] .quiz-header-score em,html[data-font-size] .quiz-progress-row,html[data-font-size] .quiz-option>span:nth-child(2),html[data-font-size] .answer-feedback p,html[data-font-size] .search-intro>p:not(.eyebrow),html[data-font-size] .search-result p,html[data-font-size] .search-result div>span,html[data-font-size] .row-title span,html[data-font-size] .row-score,html[data-font-size] .favorite-list small,html[data-font-size] .about-hero>p:last-child,html[data-font-size] .about-card>p:last-child,html[data-font-size] .source-note p:not(.eyebrow),html[data-font-size] .about-footer-links a,html[data-font-size] .footer-inner{font-size:calc(1em * var(--font-scale-factor))}html[data-font-size] .hero-lede{font-size:calc(15px * var(--font-scale-factor))}html[data-font-size] .scene-list .scene-item{font-size:calc(10px * var(--font-scale-factor))}html[data-font-size] .scene-list .scene-marker{font-size:calc(9px * var(--font-scale-factor))}html[data-font-size] .hero .hero-slogan{font-size:calc(clamp(28px,4.3vw,49px) * var(--font-scale-factor))}html[data-font-size] .term-heading h1{font-size:calc(32px * var(--font-scale-factor))}html[data-font-size] .definition-panel h2{font-size:calc(clamp(19px,2.5vw,27px) * var(--font-scale-factor))}html[data-theme=dark]{color-scheme:dark;--ink: #f0f4fb;--muted: #a7b5c9;--soft-muted: #8291a8;--line: #2a3950;--surface: #172235;--surface-soft: #121c2d;background:#0f1726}html[data-theme=dark] body{color:var(--ink);background:#0f1726}html[data-theme=dark] .site-header{border-color:#26344a;background:#0f1726e6}html[data-theme=dark] .site-footer{border-color:#26344a;background:#121c2da8}html[data-theme=dark] .header-search,html[data-theme=dark] .font-size-toggle,html[data-theme=dark] .theme-toggle,html[data-theme=dark] .font-size-popover,html[data-theme=dark] .font-options button,html[data-theme=dark] .stat-card,html[data-theme=dark] .chapter-card,html[data-theme=dark] .core-card,html[data-theme=dark] .term-card,html[data-theme=dark] .info-card,html[data-theme=dark] .related-card,html[data-theme=dark] .quiz-header-score,html[data-theme=dark] .question-card,html[data-theme=dark] .search-result,html[data-theme=dark] .overview-card,html[data-theme=dark] .chapter-progress-list,html[data-theme=dark] .favorite-list a,html[data-theme=dark] .about-card,html[data-theme=dark] .result-card,html[data-theme=dark] .large-search{border-color:var(--line);background:var(--surface)}html[data-theme=dark] .top-nav a:hover,html[data-theme=dark] .top-nav a.active{color:#b9c7ff;background:#23314b}html[data-theme=dark] .header-search input,html[data-theme=dark] .large-search input,html[data-theme=dark] .font-popover-title,html[data-theme=dark] .font-size-popover p,html[data-theme=dark] .question-card h2,html[data-theme=dark] .search-result h3,html[data-theme=dark] .favorite-list strong{color:var(--ink)}html[data-theme=dark] .chapter-hero{background:linear-gradient(115deg,#1b2841,#141f33)}html[data-theme=dark] .quiz-callout{background:linear-gradient(105deg,#1e2940,#172235)}html[data-theme=dark] .definition-panel{background:#1e2b4b}html[data-theme=dark] .definition-panel:after{border-color:#8ea3ff}html[data-theme=dark] .analogy-card{border-color:#5a4b2d;background:#30291b}html[data-theme=dark] .scene-card{border-color:#24514d;background:#163332}html[data-theme=dark] .takeaway-card{border-color:#4c3d70;background:#28203d}html[data-theme=dark] .about-purpose{border-color:#364677;background:#202d50}html[data-theme=dark] .source-note{border-color:#5a4b2d;background:#2c281f}html[data-theme=dark] .source-note h2{color:#f1e5ca}html[data-theme=dark] .large-progress-ring>div{background:#172235}html[data-theme=dark] .stat-progress-track{stroke:#354563}html[data-theme=dark] .stat-progress-halo{stroke:#8ea3ff33}html[data-theme=dark] .stat-progress-count{fill:#f1f5ff}html[data-theme=dark] .quiz-option{border-color:var(--line);color:var(--ink);background:#172235}html[data-theme=dark] .quiz-option:not(:disabled):hover{border-color:#6479e7;background:#1d2a46}html[data-theme=dark] .quiz-option.is-correct{background:#173b37}html[data-theme=dark] .quiz-option.is-wrong{background:#452828}html[data-theme=dark] .quiz-option.is-muted{opacity:.43}html[data-theme=dark] .option-letter,html[data-theme=dark] .card-favorite{color:#a9b6c9;background:#243149}html[data-theme=dark] .empty-state{border-color:#3a4c67;background:#172235b8}html[data-theme=dark] .chapter-progress-row{border-color:#25344a}html[data-theme=dark] .chapter-progress-row:hover{background:#1b2940}html[data-theme=dark] .badge-card{border-color:var(--line);background:#121c2d}html[data-theme=dark] .badge-card.earned{background:var(--surface)}html[data-theme=dark] .badge-icon{background:#243149}html[data-theme=dark] .visual-card{border-color:#31415e;background:linear-gradient(150deg,#1f2e4b,#1b2440)}html[data-theme=dark] .visual-line{background:#3a4a66}html[data-theme=dark] .visual-float{border-color:#33445f;color:#c2cede;background:#172235eb}html[data-theme=dark] .clear-search,html[data-theme=dark] .back-link,html[data-theme=dark] .chapter-switcher a,html[data-theme=dark] .term-switcher a,html[data-theme=dark] .about-footer-links a{color:#a7b5c9}@media (max-width: 760px){.header-tools{margin-left:0;gap:4px}.header-inner{height:auto;min-height:0;display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"brand tools" "nav nav";gap:8px 10px;padding:10px 0 8px}.brand{grid-area:brand;min-width:0;flex:none}.brand-mark{flex:0 0 38px}.brand>span:last-child,.brand strong{min-width:0;white-space:nowrap}.header-tools{grid-area:tools;justify-self:end}.top-nav{grid-area:nav;margin-left:0;justify-content:flex-end}.font-size-toggle{min-width:34px;height:32px;padding:0 6px}.theme-toggle{width:32px;height:32px;padding:0}.theme-toggle span{display:none}.font-size-popover{right:-25px}.hero .hero-title{font-size:clamp(44px,12vw,58px)}.hero .hero-slogan{font-size:clamp(27px,8.5vw,37px)}.hero-lede{font-size:13px}.section-heading>p.map-note{white-space:normal}html[data-font-size] .hero .hero-slogan{font-size:calc(clamp(27px,8.5vw,37px) * var(--font-scale-factor))}html[data-font-size] .term-heading h1{font-size:calc(26px * var(--font-scale-factor))}}@media (max-width: 760px){.info-card{min-height:0}.related-grid{grid-template-columns:1fr}.related-card{min-width:0}}.font-size-a{font-family:MapleMono,YouAiRound,sans-serif!important}.brand strong{font-family:MapleMono,YouAiRound,sans-serif!important;font-size:18px!important;font-weight:800!important;line-height:1.15}.brand small{font-family:MapleMono,YouAiRound,sans-serif!important;font-size:10px!important;font-weight:400!important;line-height:1.25}html[data-font-size] .brand strong{font-size:calc(18px * var(--font-scale-factor))!important}html[data-font-size] .brand small{font-size:calc(10px * var(--font-scale-factor))!important}.hero .hero-title{letter-spacing:-.04em}.hero .hero-slogan{margin-bottom:26px;font-weight:500;letter-spacing:.015em;line-height:1.34}.hero .hero-slogan>span{display:block}.hero .hero-slogan em{font-weight:500}.info-card-label{min-height:34px;color:var(--blue)!important;font-family:MapleMono,YouAiRound,sans-serif!important;font-size:calc(18px * var(--font-scale-factor))!important;font-weight:800!important;letter-spacing:0!important;line-height:1.35!important}.info-card-label>span:last-child{color:var(--blue)!important}.info-card-index{color:var(--blue)!important;font-family:MapleMono,YouAiRound,sans-serif!important;font-size:calc(15px * var(--font-scale-factor))!important;font-weight:800!important}.term-heading-copy{display:flex;align-items:center;min-width:0}.term-heading h1{margin:0!important}.term-switcher{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:14px;margin-top:51px;padding-top:25px;border-top:1px solid var(--line)}.term-switcher>a,.term-switcher>button{min-width:0;min-height:50px;width:100%;display:flex;flex-direction:row;align-items:center;justify-content:center;gap:0;padding:9px 16px;border:1px solid color-mix(in srgb,var(--blue) 24%,var(--line));border-radius:999px;color:var(--blue);background:color-mix(in srgb,var(--blue) 7%,var(--surface));transition:color .16s ease,background .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease}.term-switcher-side{align-items:center!important;justify-self:stretch}.term-switcher-side.next-term{align-items:center!important;justify-self:stretch;text-align:right}.term-switcher-disabled{align-items:center!important;cursor:not-allowed;opacity:.48}.term-switcher small,.term-switcher strong{color:inherit!important;font-family:MapleMono,YouAiRound,sans-serif!important}.term-switcher small{display:none;font-size:calc(10px * var(--font-scale-factor))!important;font-weight:600;opacity:.72}.term-switcher strong{display:inline-flex;align-items:center;justify-content:flex-start;gap:0;width:100%;font-size:calc(13px * var(--font-scale-factor))!important;font-weight:800;line-height:1.4}.term-switcher-side.next-term strong{justify-content:flex-end}.term-nav-dot{margin:0 8px;opacity:.5}.term-switcher>a:hover{border-color:var(--blue);color:#fff;background:var(--blue);box-shadow:0 10px 22px #4f6df533;transform:translateY(-2px)}.term-catalog{flex-direction:row!important;align-items:center!important;justify-self:center;gap:8px!important;padding-right:22px!important;padding-left:22px!important;border-color:var(--blue)!important;color:#fff!important;background:var(--blue)!important;font-family:MapleMono,YouAiRound,sans-serif!important;font-size:calc(13px * var(--font-scale-factor))!important;font-weight:800!important;line-height:1.4!important;box-shadow:0 10px 22px #4f6df533;white-space:nowrap}.term-catalog:hover{background:#405edb!important}.term-switcher-placeholder{min-width:0}.chapter-number,.chapter-hero-number,.chapter-sequence-number,.row-number{color:var(--chapter-color)!important}.chapter-kicker,.chapter-hero-copy .eyebrow,.chapter-hero-meta svg,.quiz-callout-icon,.quiz-callout-action>span{color:var(--chapter-color)!important}.row-number{border:1px solid color-mix(in srgb,var(--chapter-color) 18%,var(--chapter-soft));background:var(--chapter-soft)!important}.chapter-hero{background:linear-gradient(115deg,var(--chapter-soft),color-mix(in srgb,var(--chapter-soft) 34%,var(--surface)))}.quiz-callout{background:linear-gradient(105deg,color-mix(in srgb,var(--chapter-soft) 72%,var(--surface)),var(--surface))}.source-note h2{margin-bottom:0!important;color:var(--muted)!important;font-family:MapleMono,YouAiRound,sans-serif!important;font-size:calc(14px * var(--font-scale-factor))!important;font-weight:400!important;letter-spacing:0!important;line-height:1.65!important}html[data-theme=dark] .chapter-number,html[data-theme=dark] .chapter-hero-number,html[data-theme=dark] .chapter-sequence-number,html[data-theme=dark] .chapter-kicker,html[data-theme=dark] .chapter-hero-copy .eyebrow,html[data-theme=dark] .chapter-hero-meta svg,html[data-theme=dark] .quiz-callout-icon,html[data-theme=dark] .quiz-callout-action>span{color:color-mix(in srgb,var(--chapter-color) 46%,#fff)!important}html[data-theme=dark] .row-number{color:var(--chapter-color)!important;background:color-mix(in srgb,var(--chapter-soft) 72%,var(--surface))!important}html[data-theme=dark] .chapter-hero{background:linear-gradient(115deg,color-mix(in srgb,var(--chapter-color) 24%,var(--surface-soft)),var(--surface-soft))}html[data-theme=dark] .quiz-callout{background:linear-gradient(105deg,color-mix(in srgb,var(--chapter-color) 24%,var(--surface)),var(--surface))}html[data-theme=dark] .info-card-label,html[data-theme=dark] .info-card-label>span:last-child{color:#b9c7ff!important}html[data-theme=dark] .term-switcher>a{border-color:#5268b5;color:#b9c7ff!important;background:#1d2a47}html[data-theme=dark] .term-switcher>a:hover{border-color:#8093ff;color:#fff!important;background:#324572}html[data-theme=dark] .term-switcher .term-catalog{border-color:#7186ff!important;color:#fff!important;background:#5d73f8!important}html[data-theme=dark] .source-note h2{color:#b8c5d6!important;font-weight:400!important}html[data-theme=dark] .hero-lede{color:#b8c6da!important}html[data-theme=dark] .hero-note,html[data-theme=dark] .section-heading>p.map-note{color:#aebdd0!important}.core-number{margin-bottom:8px!important;color:var(--blue)!important;font-family:MapleMono,YouAiRound,sans-serif!important;font-size:25px!important;font-weight:800!important;letter-spacing:-.045em;line-height:1!important}.core-card strong{padding-right:24px;color:var(--blue)!important;font-family:MapleMono,YouAiRound,sans-serif!important;font-size:16px!important;font-weight:700!important;letter-spacing:-.05em;line-height:1.4}.core-card .inline-term-english{font-size:1em!important;font-weight:700!important}.core-card{border-color:#d5defc!important;background:#eef2ff!important}.core-card strong,.core-card strong .inline-term-english{color:#68758a!important}.core-card>svg{color:#9aa9c4!important}html[data-theme=dark] .core-card{border-color:#334568!important;background:#1c2942!important}html[data-theme=dark] .core-card strong,html[data-theme=dark] .core-card strong .inline-term-english{color:#b2bfd2!important}html[data-theme=dark] .core-card>svg{color:#8fa0bd!important}@media (max-width: 760px){.term-switcher{grid-template-columns:1fr;gap:10px}.term-switcher>a,.term-switcher>button,.term-switcher>.term-catalog{width:100%;justify-self:stretch;align-items:center;text-align:center}.term-switcher-placeholder{display:none}.term-switcher strong,.term-switcher-side.next-term strong{justify-content:center}}.hero-visual{isolation:isolate}.hero-visual:before{position:absolute;top:50%;left:50%;z-index:0;width:330px;height:260px;border-radius:50%;background:radial-gradient(ellipse,#7890f429,#7890f400 70%);content:"";filter:blur(18px);pointer-events:none;transform:translate(-50%,-50%)}.orbit{top:50%;left:50%;z-index:1;border:1px solid var(--orbit-line);transform:translate(-50%,-50%) rotate(var(--orbit-angle));animation:orbit-spin var(--orbit-duration) linear infinite;will-change:transform}.orbit-one{width:356px;height:218px;--orbit-angle: -18deg;--orbit-duration: 31s;--orbit-line: rgba(113, 135, 232, .24)}.orbit-two{width:258px;height:334px;border-color:var(--orbit-line);--orbit-angle: 38deg;--orbit-duration: 24s;--orbit-line: rgba(77, 172, 164, .25);animation-direction:reverse}.orbit-three{width:310px;height:154px;--orbit-angle: 67deg;--orbit-duration: 38s;--orbit-line: rgba(211, 116, 160, .2)}.planet{position:absolute;top:50%;left:100%;width:var(--planet-size);height:var(--planet-size);display:block;border:1px solid rgba(255,255,255,.78);border-radius:50%;background:radial-gradient(circle at 30% 25%,rgba(255,255,255,.92) 0 12%,var(--planet-color) 42%,color-mix(in srgb,var(--planet-color) 68%,#6b5b98) 100%);box-shadow:0 0 10px 1px var(--planet-glow);transform:translate(-50%,-50%);animation:planet-breathe var(--planet-breathe) ease-in-out infinite;will-change:transform,box-shadow}.planet-one{--planet-size: 17px;--planet-color: #e5a24d;--planet-glow: rgba(229, 162, 77, .48);--planet-breathe: 2.8s}.planet-two{--planet-size: 11px;--planet-color: #e16f98;--planet-glow: rgba(225, 111, 152, .5);--planet-breathe: 3.9s;animation-delay:-1.4s}.planet-three{--planet-size: 8px;--planet-color: #6f88ec;--planet-glow: rgba(111, 136, 236, .58);--planet-breathe: 2.25s;animation-delay:-.65s}@keyframes orbit-spin{0%{transform:translate(-50%,-50%) rotate(var(--orbit-angle))}to{transform:translate(-50%,-50%) rotate(calc(var(--orbit-angle) + 360deg))}}@keyframes planet-breathe{0%,to{box-shadow:0 0 7px 0 var(--planet-glow),0 0 12px 1px var(--planet-glow);transform:translate(-50%,-50%) scale(.86)}50%{box-shadow:0 0 0 7px color-mix(in srgb,var(--planet-glow) 22%,transparent),0 0 25px 5px var(--planet-glow);transform:translate(-50%,-50%) scale(1.08)}}.visual-card-main{animation:visual-card-float 8s ease-in-out infinite;will-change:transform}@keyframes visual-card-float{0%,to{transform:rotate(-4deg) translateY(0)}50%{transform:rotate(-2.8deg) translateY(-7px)}}.float-top{animation:visual-float-top 7s ease-in-out infinite;will-change:transform}.float-bottom{animation:visual-float-bottom 8.5s ease-in-out infinite;will-change:transform}@keyframes visual-float-top{0%,to{transform:rotate(4deg) translateY(0)}50%{transform:rotate(4deg) translateY(-5px)}}@keyframes visual-float-bottom{0%,to{transform:rotate(-5deg) translateY(0)}50%{transform:rotate(-5deg) translateY(5px)}}.visual-star{position:absolute;z-index:1;display:block;border-radius:50%;background:#fff;box-shadow:0 0 10px 2px #ffffffbf;opacity:.72}.star-one{top:22%;left:17%;width:3px;height:3px}.star-two{top:31%;right:19%;width:4px;height:4px;opacity:.52}.star-three{bottom:22%;left:26%;width:2px;height:2px}html[data-theme=dark] .hero-visual:before{background:radial-gradient(ellipse,#687dec3d,#687dec00 70%)}html[data-theme=dark] .orbit-one{--orbit-line: rgba(139, 158, 255, .42)}html[data-theme=dark] .orbit-two{--orbit-line: rgba(88, 204, 190, .42)}html[data-theme=dark] .orbit-three{--orbit-line: rgba(235, 129, 179, .36)}@media (max-width: 760px){.orbit-one{width:300px;height:184px}.orbit-two{width:220px;height:286px}.orbit-three{width:270px;height:134px}.hero-visual:before{width:280px;height:230px}}@media (prefers-reduced-motion: reduce){.orbit,.planet,.visual-card-main,.float-top,.float-bottom{animation:none!important}}.term-page .term-heading-index{border:1px solid color-mix(in srgb,var(--chapter-color) 24%,var(--chapter-soft))!important;color:var(--chapter-color)!important;background:var(--chapter-soft)!important}.term-page .term-heading-index .sequence-number,.term-page .term-breadcrumb>span:last-child,.term-page .term-heading h1 .inline-term-english,.term-page .definition-panel .eyebrow{color:var(--chapter-color)!important}.term-page .definition-panel{background:linear-gradient(115deg,var(--chapter-soft),color-mix(in srgb,var(--chapter-soft) 38%,var(--surface)))!important}.term-page .definition-panel:after{border-color:var(--chapter-color)!important}.term-page .info-card{--info-accent: var(--chapter-color);border-color:color-mix(in srgb,var(--chapter-color) 18%,var(--line));background:linear-gradient(155deg,var(--surface),color-mix(in srgb,var(--chapter-soft) 24%,var(--surface)))!important}.term-page .info-card-label,.term-page .info-card-label>span:last-child,.term-page .info-card-index,.term-page .info-card .label-icon{color:var(--chapter-color)!important}.chapter-page .term-card-number,.chapter-page .term-title-row .inline-term-english,.chapter-page .term-card:hover .read-more,.quiz-page .quiz-header-score strong,.quiz-page .quiz-header-score em,.quiz-page .quiz-header h1 em,.quiz-page .question-top>span:first-child,.quiz-page .result-score strong,.quiz-page .result-icon,.quiz-page .result-badge .badge-medal{color:var(--chapter-color)!important}.chapter-page .term-card:hover{border-color:color-mix(in srgb,var(--chapter-color) 38%,var(--line))}.related-card>span,.related-card .inline-term-english{color:var(--related-color, var(--chapter-color))!important}.related-card>svg{color:color-mix(in srgb,var(--related-color, var(--chapter-color)) 58%,var(--muted))!important}.related-card:hover{border-color:color-mix(in srgb,var(--related-color, var(--chapter-color)) 42%,var(--line))}.search-group-heading>span:first-child{color:var(--chapter-color)!important}.search-result .result-number,.search-result .inline-term-english{color:var(--chapter-color)!important}html[data-theme=dark] .term-page .term-heading-index{border-color:color-mix(in srgb,var(--chapter-color) 58%,#6f819e)!important;color:color-mix(in srgb,var(--chapter-color) 46%,#fff)!important;background:color-mix(in srgb,var(--chapter-color) 22%,var(--surface))!important}html[data-theme=dark] .term-page .term-heading-index .sequence-number,html[data-theme=dark] .term-page .term-breadcrumb>span:last-child,html[data-theme=dark] .term-page .term-heading h1 .inline-term-english,html[data-theme=dark] .term-page .definition-panel .eyebrow,html[data-theme=dark] .term-page .info-card-label,html[data-theme=dark] .term-page .info-card-label>span:last-child,html[data-theme=dark] .term-page .info-card-index,html[data-theme=dark] .term-page .info-card .label-icon,html[data-theme=dark] .chapter-page .term-card-number,html[data-theme=dark] .chapter-page .term-title-row .inline-term-english,html[data-theme=dark] .chapter-page .term-card:hover .read-more,html[data-theme=dark] .quiz-page .quiz-header-score strong,html[data-theme=dark] .quiz-page .quiz-header-score em,html[data-theme=dark] .quiz-page .quiz-header h1 em,html[data-theme=dark] .quiz-page .question-top>span:first-child,html[data-theme=dark] .quiz-page .result-score strong,html[data-theme=dark] .quiz-page .result-icon,html[data-theme=dark] .quiz-page .result-badge .badge-medal{color:color-mix(in srgb,var(--chapter-color) 46%,#fff)!important}html[data-theme=dark] .search-result .result-number,html[data-theme=dark] .search-result .inline-term-english{color:color-mix(in srgb,var(--chapter-color) 46%,#fff)!important}html[data-theme=dark] .term-page .definition-panel{background:linear-gradient(115deg,color-mix(in srgb,var(--chapter-color) 25%,var(--surface)),var(--surface))!important}html[data-theme=dark] .term-page .definition-panel:after{border-color:color-mix(in srgb,var(--chapter-color) 58%,#fff)!important;opacity:.38}html[data-theme=dark] .term-page .info-card{border-color:color-mix(in srgb,var(--chapter-color) 27%,var(--line));background:color-mix(in srgb,var(--chapter-color) 10%,var(--surface))!important}html[data-theme=dark] .button-outline{border-color:#536783!important;color:#dce5f2!important;background:#1b2a42!important}html[data-theme=dark] .button-outline:hover,html[data-theme=dark] .button-outline.is-selected{border-color:#8498ff!important;color:#f0f4fb!important;background:#2a3d62!important}html[data-theme=dark] .button-primary{background:#465dcc!important}html[data-theme=dark] .button-primary:hover{background:#526edc!important}html[data-theme=dark] .term-actions .button-outline.is-selected{border-color:#8d6b39!important;color:#ffd18a!important;background:#3b2d1c!important}html[data-theme=dark] .button-success{color:#fff!important;background:#0f806e!important}html[data-theme=dark] .button-dark{color:#fff!important;background:#2b3a55!important}html[data-theme=dark] .button-dark:hover{background:#3a4d6d!important}html[data-theme=dark] .button-quiet{color:#d3ddec!important}html[data-theme=dark] .button-quiet:hover{color:#fff!important;background:#1d2a47!important}html[data-theme=dark] .card-favorite.is-active{border-color:#8d6b39!important;color:#ffd18a!important;background:#3b2d1c!important}html[data-theme=dark] .term-switcher>button.term-switcher-disabled{border-color:#435471!important;color:#aebdd0!important;background:#18263b!important;opacity:1!important}@media (max-width: 760px){.hero-visual{min-height:450px;margin-top:32px}.float-tag-one{top:18px;left:0}.float-tag-two{top:18px;right:0}.float-tag-three{top:92px;left:0}.float-tag-four{top:92px;right:0}.float-bottom{bottom:52px;left:0}.float-tag-five{right:0;bottom:0}}.visual-float{isolation:isolate;min-height:42px;padding:9px 15px 9px 13px!important;border:1px solid rgba(255,255,255,.92)!important;border-radius:999px;color:#30405d!important;background:linear-gradient(180deg,#ffffff 0%,var(--tag-fill) 100%)!important;box-shadow:0 9px 18px #394c8424,inset 0 1px #ffffffe6,inset 0 -2px #5b70bb33!important;font-family:MapleMono,YouAiRound,sans-serif;font-size:11px;font-weight:600;letter-spacing:-.045em;text-shadow:0 1px 0 rgba(255,255,255,.7)}.visual-float:before{content:"";display:none}.visual-float:after{position:absolute;top:3px;right:3px;bottom:3px;left:3px;z-index:1;border:1px solid var(--tag-line);border-radius:inherit;content:"";pointer-events:none}.float-bottom{--tag-fill: #e8edff;--tag-halo: #dfe5ff;--tag-line: #9daeff}.float-tag-one{--tag-fill: #e9e1ff;--tag-halo: #e8ddff;--tag-line: #a89af7}.float-tag-two{--tag-fill: #ddf5f0;--tag-halo: #d8f3ee;--tag-line: #89d9ce}.float-tag-three{--tag-fill: #fff0d8;--tag-halo: #ffeed3;--tag-line: #f2c87c}.float-tag-four{--tag-fill: #ffe8ee;--tag-halo: #ffe2eb;--tag-line: #efa9c0}.float-tag-five{--tag-fill: #e8e3ff;--tag-halo: #e6deff;--tag-line: #aea1f4}.visual-float.float-bottom,.visual-float.float-tag-one,.visual-float.float-tag-two,.visual-float.float-tag-three,.visual-float.float-tag-four,.visual-float.float-tag-five{--tag-fill: #e8efff;--tag-halo: #dce7ff;--tag-line: #a9bff1}.visual-float{border-color:#a9bff1c7!important;color:#30415f!important;background:linear-gradient(180deg,#f7f9ff,#e8efff)!important;box-shadow:0 9px 18px #3f5a9d21,inset 0 1px #fffffff0,inset 0 -2px #5671b92e!important;text-shadow:0 1px 0 rgba(255,255,255,.76)}.visual-float .mini-check{flex:0 0 auto;width:22px;height:22px;border-radius:7px;color:#fff;background:#18a69b;box-shadow:0 3px 8px #18a69b38}html[data-theme=dark] .visual-float{border-color:#3a5278!important;color:#c0ccdf!important;background:linear-gradient(180deg,#1b2b47,#142139)!important;box-shadow:0 12px 24px #00000057,0 0 0 1px #7494cf1f,inset 0 1px #97b4e71a,inset 0 -2px #050c1952!important;text-shadow:0 1px 0 rgba(3,10,22,.45)}html[data-theme=dark] .visual-float:after{border-color:#6a8bc66b}html[data-theme=dark] .visual-float .mini-check{background:#16a9a0;box-shadow:0 3px 10px #16a9a047}html[data-font-size] .visual-float{font-size:calc(11px * var(--font-scale-factor))}.progress-asset-icon{width:54px;height:54px;display:block;flex:0 0 auto;background-image:url(/generated/progress-icons/progress-icons-v1.png);background-repeat:no-repeat;background-size:300% 200%}.progress-asset-icon-terms{background-position:0 0}.progress-asset-icon-chapters{background-position:50% 0}.progress-asset-icon-quiz{background-position:100% 0}.progress-asset-icon-learned{background-position:0 100%}.progress-asset-icon-saved{background-position:50% 100%}.progress-asset-icon-badges{background-position:100% 100%}.badge-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;align-items:stretch}.badge-card{min-height:0;align-items:stretch;justify-content:flex-start;gap:10px;overflow:hidden;padding:10px;border-radius:20px;background:var(--surface-soft)}.badge-card.earned{border-color:color-mix(in srgb,var(--badge-color) 42%,var(--line));background:var(--surface);box-shadow:0 12px 28px color-mix(in srgb,var(--badge-color) 12%,transparent)}.badge-card-art{position:relative;width:100%;aspect-ratio:3 / 4;overflow:hidden;border-radius:15px;background:radial-gradient(circle at 50% 45%,color-mix(in srgb,var(--badge-color) 12%,#fff),#f2f5fa 74%)}.badge-card-art img{display:block;width:100%;height:100%;object-fit:contain;transition:transform .22s ease,filter .22s ease,opacity .22s ease}.badge-card.earned:hover .badge-card-art img{transform:scale(1.025)}.badge-card:not(.earned) .badge-card-art img{filter:grayscale(.82) saturate(.3);opacity:.46}.badge-state{position:absolute;top:8px;right:8px;display:inline-flex;align-items:center;gap:4px;padding:5px 7px;border:1px solid rgba(255,255,255,.78);border-radius:999px;color:#63718a;background:#ffffffd6;box-shadow:0 4px 10px #1b2b481a;font-family:MapleMono,YouAiRound,sans-serif;font-size:8px;font-weight:600;line-height:1}.badge-card.earned .badge-state{color:color-mix(in srgb,var(--badge-color) 78%,#263653)}.badge-card-copy{display:flex;min-width:0;flex:1;flex-direction:column;align-items:flex-start;padding:1px 3px 3px}.badge-card-title{display:flex;min-width:0;width:100%;align-items:baseline;gap:7px}.badge-card-title>span{flex:0 0 auto;color:var(--badge-color);font-family:MapleMono,YouAiRound,sans-serif;font-size:10px;font-weight:700;letter-spacing:.02em}.badge-card-title strong{min-width:0;overflow:hidden;color:var(--ink);font-family:MapleMono,YouAiRound,sans-serif;font-size:13px;font-weight:700;letter-spacing:-.055em;text-overflow:ellipsis;white-space:nowrap}.badge-card-copy small{margin-top:5px;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:9px;line-height:1.55}.badge-claim-button{display:inline-flex;align-items:center;gap:5px;margin-top:10px;padding:7px 10px;border:0;border-radius:999px;color:#fff;background:var(--badge-color);box-shadow:0 6px 14px color-mix(in srgb,var(--badge-color) 26%,transparent);font-family:MapleMono,YouAiRound,sans-serif;font-size:9px;font-weight:700;transition:transform .16s ease,filter .16s ease}.badge-claim-button:hover{filter:brightness(.96) saturate(1.1);transform:translateY(-1px)}.badge-locked-note{margin-top:10px;color:var(--soft-muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:9px}.badge-studio-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:60;display:grid;place-items:center;padding:20px;background:#0f172691;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.badge-studio{width:min(860px,100%);max-height:calc(100vh - 40px);overflow:auto;padding:25px;border:1px solid var(--line);border-radius:28px;background:var(--surface);box-shadow:0 28px 80px #08112247}.badge-studio-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.badge-studio-heading h2{margin:3px 0 8px;color:var(--ink);font-family:MapleMono,YouAiRound,sans-serif;font-size:25px;letter-spacing:-.07em}.badge-studio-heading p:not(.eyebrow){margin:0;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:11px;line-height:1.7}.badge-studio-close{width:34px;height:34px;display:grid;flex:0 0 auto;place-items:center;border-radius:11px;color:var(--muted);background:var(--surface-soft)}.badge-studio-close:hover{color:var(--ink);background:var(--line)}.badge-studio-layout{display:grid;grid-template-columns:minmax(250px,350px) minmax(0,1fr);gap:30px;align-items:center;margin-top:23px}.badge-studio-preview{display:grid;place-items:center;padding:17px;border:1px solid color-mix(in srgb,var(--badge-color) 25%,var(--line));border-radius:22px;background:radial-gradient(circle at 50% 31%,color-mix(in srgb,var(--badge-color) 18%,#fff),var(--surface-soft) 68%)}.badge-art{position:relative;width:min(100%,305px);aspect-ratio:3 / 4;container-type:inline-size}.badge-art>img{display:block;width:100%;height:100%;object-fit:contain}.badge-art-copy{position:absolute;top:var(--badge-name-center, 90.3%);left:50%;width:46.6667%;height:4.2%;display:flex;align-items:center;justify-content:center;text-align:center;transform:translate(-50%,-50%);pointer-events:none}.badge-art-copy em{font-family:MapleMono,YouAiRound,sans-serif;white-space:nowrap}.badge-art-copy em{max-width:100%;overflow:hidden;padding:0;color:#4a3a48;font-size:calc(var(--badge-name-font-size, 44) * 100cqw / 900);font-style:normal;font-weight:600;letter-spacing:0;line-height:1;text-overflow:clip}.badge-preview-note{margin-top:3px;color:var(--soft-muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:9px}.badge-studio-controls{display:flex;min-width:0;flex-direction:column;justify-content:center;gap:19px}.badge-studio-rule{display:flex;align-items:flex-start;gap:11px}.badge-studio-rule>span{width:30px;height:30px;display:grid;flex:0 0 auto;place-items:center;border-radius:10px;color:var(--badge-color);background:color-mix(in srgb,var(--badge-color) 13%,var(--surface));font-family:MapleMono,YouAiRound,sans-serif;font-size:10px;font-weight:700}.badge-studio-rule strong,.badge-studio-rule small{display:block;font-family:MapleMono,YouAiRound,sans-serif}.badge-studio-rule strong{color:var(--ink);font-size:13px;font-weight:700}.badge-studio-rule small{margin-top:5px;color:var(--muted);font-size:9px;line-height:1.6}.badge-name-field{display:grid;gap:8px;color:var(--muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:10px}.badge-name-field input{width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:12px;outline:0;color:var(--ink);background:var(--surface-soft);font-family:MapleMono,YouAiRound,sans-serif;font-size:13px;transition:border-color .16s ease,box-shadow .16s ease}.badge-name-field input:focus{border-color:var(--badge-color);box-shadow:0 0 0 4px color-mix(in srgb,var(--badge-color) 15%,transparent)}.badge-name-field input::placeholder{color:var(--soft-muted)}.badge-export-actions{display:flex;flex-wrap:wrap;gap:9px}.badge-export-actions .button{min-width:125px;justify-content:center}.badge-export-actions .button:disabled{cursor:not-allowed;opacity:.42}.badge-studio-hint{min-height:18px;margin:-5px 0 0;color:var(--soft-muted);font-family:MapleMono,YouAiRound,sans-serif;font-size:9px;line-height:1.65}.badge-studio-hint.is-success{color:#1a9c82}html[data-font-size] .badge-card-title strong,html[data-font-size] .badge-card-copy small,html[data-font-size] .badge-claim-button,html[data-font-size] .badge-locked-note,html[data-font-size] .badge-studio-heading p:not(.eyebrow),html[data-font-size] .badge-studio-rule small,html[data-font-size] .badge-name-field,html[data-font-size] .badge-studio-hint{font-size:calc(1em * var(--font-scale-factor))}html[data-theme=dark] .badge-card-art{background:radial-gradient(circle at 50% 45%,color-mix(in srgb,var(--badge-color) 20%,#1b2841),#101a2b 74%)}html[data-theme=dark] .badge-state{border-color:#ffffffa3;color:#263653;background:#f8faffe6}html[data-theme=dark] .badge-studio{box-shadow:0 28px 80px #0000007a}html[data-theme=dark] .badge-studio-preview{background:radial-gradient(circle at 50% 31%,color-mix(in srgb,var(--badge-color) 24%,#253553),#101a2b 68%)}html[data-theme=dark] .badge-studio-hint.is-success{color:#64d3bb}@media (max-width: 760px){.badge-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.badge-studio-backdrop{padding:10px}.badge-studio{max-height:calc(100vh - 20px);padding:18px;border-radius:22px}.badge-studio-layout{grid-template-columns:1fr;gap:19px;margin-top:18px}.badge-studio-preview{padding:10px}.badge-art{width:min(100%,245px)}.badge-export-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.badge-export-actions .button{min-width:0;padding-right:8px;padding-left:8px}}.storage-warning{width:min(1180px,calc(100% - 40px));display:flex;align-items:center;gap:8px;margin:9px auto 0;padding:9px 12px;border:1px solid #e4b48a;border-radius:12px;color:#8c522c;background:#fff7ef;font-size:11px;line-height:1.5}.storage-warning svg{flex:0 0 auto}html[data-theme=dark] .storage-warning{border-color:#8d6245;color:#ffd2ad;background:#3a2a24}@media (max-width: 760px){.storage-warning{width:calc(100% - 24px);margin-top:7px;font-size:10px}.term-example{gap:8px;padding:10px 11px;font-size:calc(12px * var(--font-scale-factor))}}.badge-studio-rule{align-items:flex-start;gap:14px}.badge-studio-rule>span{width:48px;height:48px;min-height:48px;align-self:flex-start;border-radius:14px;color:var(--blue)!important;background:color-mix(in srgb,var(--blue) 10%,var(--surface));font-family:MapleMono,YouAiRound,sans-serif!important;font-size:24px;font-weight:800;line-height:1}.badge-studio-rule>div{min-width:0;display:flex;flex-direction:column;justify-content:center}.about-hero-description span{display:block}html[data-theme=dark] .badge-studio-rule>span{color:#9eafff!important;background:#24345c}@media (max-width: 760px){.badge-studio-rule{gap:12px}.badge-studio-rule>span{width:44px;height:44px;min-height:44px;border-radius:13px;font-size:22px}}.about-purpose{border-color:var(--line);background:var(--surface)}.about-card-icon.teal{color:var(--teal);background:#fff}html[data-theme=dark] .about-purpose{border-color:var(--line);background:var(--surface)}html[data-theme=dark] .about-card-icon.teal{background:#fff}.chapter-page .term-card.is-learned{border-color:color-mix(in srgb,var(--chapter-color) 30%,var(--line));background:linear-gradient(135deg,color-mix(in srgb,var(--chapter-soft) 72%,var(--surface)),color-mix(in srgb,var(--chapter-soft) 22%,var(--surface)));box-shadow:0 9px 24px color-mix(in srgb,var(--chapter-color) 10%,transparent)}html[data-theme=dark] .chapter-page .term-card.is-learned{border-color:color-mix(in srgb,var(--chapter-color) 42%,var(--line));background:linear-gradient(135deg,color-mix(in srgb,var(--chapter-color) 20%,var(--surface)),color-mix(in srgb,var(--chapter-color) 7%,var(--surface)));box-shadow:0 9px 24px color-mix(in srgb,var(--chapter-color) 16%,transparent)}