.unified-course:has(.fr-content){--fr-red:#be3e2f;--fr-navy:#162738;--fr-blue:#1a7285;--fr-ink:#172638;--fr-muted:#566a7b;--fr-line:#d5dfe6;--fr-paper:#f8faf9;background:#eef3f3}.unified-course:has(.fr-content) .unified-course-main{background:radial-gradient(circle at 88% 2%,rgba(190,62,47,.12),transparent 28rem),radial-gradient(circle at 3% 35%,rgba(26,114,133,.1),transparent 25rem),#eef3f3}.fr-content{width:min(100%,1220px);margin:0 auto;overflow:hidden;color:var(--fr-ink)}.fr-content *{box-sizing:border-box}.fr-content a{color:inherit}.fr-tag{color:var(--fr-red);font-family:var(--font-geist-mono),monospace;font-size:.67rem;font-weight:850;letter-spacing:.15em;text-transform:uppercase}.fr-article{width:min(100%,980px);margin:0 auto;padding:68px 30px 86px}.fr-article-meta{display:flex;flex-wrap:wrap;gap:11px;align-items:center}.fr-article-meta>span{padding:5px 8px;border:1px solid var(--fr-line);border-radius:99px;color:var(--fr-muted);background:rgba(255,255,255,.72);font-size:.64rem}.fr-article h1{max-width:920px;margin:17px 0 12px;font-size:clamp(2.8rem,6vw,5.35rem);line-height:.96;letter-spacing:-.062em}.fr-subtitle{max-width:800px;margin:0 0 40px;color:var(--fr-muted);font-size:1.14rem;line-height:1.72}.fr-opening{max-width:880px;margin:36px 0 48px}.fr-opening p{margin:0 0 22px;color:#344e60;font-size:1.07rem;line-height:1.88}.fr-opening p:first-child:first-letter{float:left;margin:10px 10px 0 0;color:var(--fr-red);font-size:4rem;font-weight:850;line-height:.73}.fr-concept-map{margin:46px 0 74px;overflow:hidden;border:1px solid var(--fr-line);border-radius:20px;background:rgba(255,255,255,.91);box-shadow:0 24px 56px rgba(34,56,70,.09)}.fr-concept-map>.fr-tag{display:block;padding:20px 24px 0;color:var(--fr-blue)}.fr-concept-core{display:flex;min-height:120px;flex-direction:column;align-items:center;justify-content:center;padding:25px;color:white;text-align:center;background:linear-gradient(135deg,var(--fr-navy),#234b59)}.fr-concept-core small{margin-bottom:9px;color:#84d6dc;font:800 .62rem var(--font-geist-mono),monospace;letter-spacing:.14em}.fr-concept-core strong{max-width:700px;font-size:clamp(1.25rem,3vw,2rem);letter-spacing:-.035em}.fr-concept-row{display:grid;grid-template-columns:repeat(5,minmax(0,1fr))}.fr-concept-row>div{position:relative;display:flex;min-width:0;min-height:122px;flex-direction:column;justify-content:center;padding:17px;border-right:1px solid var(--fr-line)}.fr-concept-row>div:last-child{border-right:0}.fr-concept-row span{color:var(--fr-red);font:850 .65rem var(--font-geist-mono),monospace}.fr-concept-row b{margin-top:8px;font-size:.82rem;line-height:1.4}.fr-concept-row i{position:absolute;right:-9px;z-index:2;display:grid;width:18px;height:18px;place-items:center;border-radius:50%;color:white;background:var(--fr-red);font-size:.61rem;font-style:normal}.fr-concept-map figcaption{padding:16px 20px;border-top:1px solid var(--fr-line);color:var(--fr-muted);font-size:.76rem;font-style:italic}.fr-section{margin:78px 0;scroll-margin-top:100px}.fr-section-number{margin-bottom:10px;color:var(--fr-red);font:850 .72rem var(--font-geist-mono),monospace;letter-spacing:.12em}.fr-scenario h2,.fr-section h2,.fr-sources h2{max-width:820px;margin:0 0 22px;font-size:clamp(1.8rem,3.4vw,2.65rem);line-height:1.08;letter-spacing:-.047em}.fr-scenario>p,.fr-section>p,.fr-sources>p{max-width:850px;margin:0 0 22px;color:#3a5365;font-size:1rem;line-height:1.87}.fr-topic-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin-top:29px;overflow:hidden;border:1px solid var(--fr-line);border-radius:14px;background:rgba(255,255,255,.82)}.fr-topic-grid>div{display:flex;min-width:0;min-height:150px;flex-direction:column;padding:18px;border-right:1px solid var(--fr-line)}.fr-topic-grid>div:last-child{border-right:0}.fr-topic-grid span{color:var(--fr-blue);font:850 .65rem var(--font-geist-mono),monospace}.fr-topic-grid strong{margin:13px 0 8px;font-size:.88rem;line-height:1.35}.fr-topic-grid small{color:var(--fr-muted);font-size:.73rem;line-height:1.55}.fr-table-wrap{margin:30px 0;overflow-x:auto;border:1px solid var(--fr-line);border-radius:14px;background:rgba(255,255,255,.88)}.fr-table-wrap table{width:100%;min-width:650px;border-collapse:collapse}.fr-table-wrap th{padding:14px 17px;color:#176274;background:#e7f2f3;font-size:.68rem;letter-spacing:.08em;text-align:left;text-transform:uppercase}.fr-table-wrap td{padding:15px 17px;border-top:1px solid var(--fr-line);color:#41596a;font-size:.83rem;line-height:1.55;vertical-align:top}.fr-table-wrap td:first-child{width:32%;color:var(--fr-ink);font-weight:780}.fr-worked-example{margin:92px 0;padding:42px;border:1px solid #263f50;border-radius:22px;color:#e9f1f3;background:linear-gradient(145deg,#132635,#1d3d49);box-shadow:0 28px 60px rgba(22,39,56,.16)}.fr-example-heading{max-width:820px}.fr-example-heading .fr-tag{color:#71d7d0}.fr-example-heading h2{margin:13px 0 25px;color:white;font-size:clamp(2rem,4vw,3.25rem);line-height:1.02;letter-spacing:-.052em}.fr-example-situation{max-width:860px}.fr-example-situation p{margin:0 0 17px;color:#c4d4da;font-size:1rem;line-height:1.82}.fr-walkthrough{margin:36px 0;border-top:1px solid #365461}.fr-walkthrough>div{display:grid;grid-template-columns:54px 1fr;gap:15px;padding:24px 0;border-bottom:1px solid #365461}.fr-walkthrough>div>span{color:#ff8c75;font:850 .68rem var(--font-geist-mono),monospace;letter-spacing:.12em}.fr-walkthrough h3{margin:0 0 7px;color:white;font-size:.98rem}.fr-walkthrough p{max-width:810px;margin:0;color:#bed0d6;font-size:.88rem;line-height:1.75}.fr-artifact{display:grid;grid-template-columns:.75fr 1.25fr;gap:30px;margin-top:36px;padding:28px;border:1px solid #45616d;border-radius:16px;background:#0d202c}.fr-artifact>div>span{color:#71d7d0;font:850 .62rem var(--font-geist-mono),monospace;letter-spacing:.14em}.fr-artifact h3{margin:10px 0;color:white;font-size:1.35rem}.fr-artifact p{margin:0;color:#93aeb8;font-size:.78rem;line-height:1.6}.fr-artifact dl{margin:0}.fr-artifact dl>div{display:grid;grid-template-columns:minmax(110px,.5fr) 1.5fr;gap:13px;padding:12px 0;border-bottom:1px solid #29434f}.fr-artifact dl>div:last-child{border-bottom:0}.fr-artifact dt{color:#ff9a85;font:800 .64rem var(--font-geist-mono),monospace;letter-spacing:.06em;text-transform:uppercase}.fr-artifact dd{margin:0;color:#d3e0e4;font-size:.8rem;line-height:1.55}.fr-review-questions{margin-top:31px}.fr-review-questions h3{color:white;font-size:1rem}.fr-review-questions ol{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;padding:0;list-style:none;counter-reset:review}.fr-review-questions li{position:relative;padding:17px 17px 17px 45px;border:1px solid #3c5864;border-radius:10px;color:#c4d4da;font-size:.8rem;line-height:1.55;counter-increment:review}.fr-review-questions li:before{position:absolute;left:16px;color:#71d7d0;font:850 .62rem var(--font-geist-mono),monospace;content:counter(review,decimal-leading-zero)}.fr-scenario{display:grid;grid-template-columns:.78fr 1.22fr;gap:42px;margin:76px 0;padding:34px;border:1px solid #c9d7de;border-radius:19px;background:linear-gradient(135deg,rgba(255,255,255,.92),rgba(230,243,244,.9))}.fr-scenario h2{margin-top:11px;font-size:clamp(1.65rem,3vw,2.25rem)}.fr-scenario>p{margin:0;align-self:center}.fr-lens-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:13px;margin-top:27px}.fr-lens-grid>div{padding:20px;border:1px solid var(--fr-line);border-radius:12px;background:rgba(255,255,255,.8)}.fr-lens-grid b{display:block;margin-bottom:7px;color:var(--fr-red);font-size:.76rem;letter-spacing:.06em;text-transform:uppercase}.fr-lens-grid span{color:var(--fr-muted);font-size:.82rem;line-height:1.58}.fr-failure{margin:50px 0 80px;padding:24px 26px;border-left:4px solid var(--fr-red);border-radius:10px;background:#fff1ed}.fr-failure span{color:#9f2f25;font:850 .67rem var(--font-geist-mono),monospace;letter-spacing:.13em}.fr-failure p{margin:9px 0 0;color:#563f3a;line-height:1.7}.fr-sources{padding-top:42px;border-top:1px solid var(--fr-line)}.fr-sources h2{margin-top:11px}.fr-sources>div{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:25px}.fr-sources a{display:grid;grid-template-columns:28px 1fr;gap:8px;align-items:center;padding:15px;border:1px solid var(--fr-line);border-radius:10px;background:rgba(255,255,255,.82);text-decoration:none}.fr-sources a:hover{border-color:var(--fr-blue)}.fr-sources a span{color:var(--fr-blue)}.fr-sources a b{font-size:.78rem}.fr-home{padding:54px 30px 92px}.fr-hero{display:grid;grid-template-columns:.85fr 1.15fr;gap:38px;align-items:center;min-height:665px}.fr-hero h1{margin:18px 0;font-size:clamp(3.8rem,7vw,7.6rem);line-height:.86;letter-spacing:-.078em}.fr-hero h1 span{color:var(--fr-red);font-size:.7em}.fr-hero>div>p{max-width:610px;color:var(--fr-muted);font-size:1.05rem;line-height:1.78}.fr-actions{display:flex;flex-wrap:wrap;gap:11px;margin:29px 0}.fr-actions a{padding:13px 18px;border:1px solid var(--fr-red);border-radius:9px;color:white;background:var(--fr-red);font-size:.8rem;font-weight:850;text-decoration:none}.fr-actions a+a{color:var(--fr-ink);background:transparent}.fr-stats{display:flex;gap:28px}.fr-stats div{display:flex;flex-direction:column}.fr-stats b{font-size:1.35rem}.fr-stats span{color:var(--fr-muted);font-size:.7rem}.fr-dual-model{overflow:hidden;border:1px solid #304959;border-radius:21px;color:white;background:var(--fr-navy);box-shadow:0 27px 58px rgba(22,39,56,.2)}.fr-dual-head{display:flex;justify-content:space-between;padding:16px 19px;border-bottom:1px solid #385263;color:#99b7c3;font:800 .59rem var(--font-geist-mono),monospace;letter-spacing:.11em}.fr-dual-head b{color:#72d0c2}.fr-dual-head i{display:inline-block;width:6px;height:6px;margin-right:5px;border-radius:50%;background:#65d0a5}.fr-dual-body{display:grid;grid-template-columns:1fr}.fr-track{padding:23px}.fr-track small{color:#87afba;font:800 .58rem var(--font-geist-mono),monospace;letter-spacing:.13em}.fr-track h3{margin:8px 0;font-size:2rem;letter-spacing:-.04em}.fr-track p{margin:0 0 17px;color:#c1d0d6;font-size:.8rem;line-height:1.58}.fr-track>div{display:flex;align-items:center;gap:8px}.fr-track>div span{padding:7px 8px;border:1px solid #46616f;border-radius:6px;font:760 .55rem var(--font-geist-mono),monospace}.fr-track>div i{color:#809ba8;font-style:normal}.fr-track-rev5{border-bottom:1px solid #385263}.fr-track-rev5 h3{color:#ff8c75}.fr-track-20x h3{color:#65d6d2}.fr-dual-center{display:flex;flex-direction:column;align-items:center;padding:17px;border-bottom:1px solid #385263;background:#203d4b;text-align:center}.fr-dual-center span{color:#79cbd1;font:800 .57rem var(--font-geist-mono),monospace;letter-spacing:.13em}.fr-dual-center strong{margin:5px 0}.fr-dual-center small{color:#96b0ba}.fr-dual-model figcaption{padding:14px 18px;border-top:1px solid #385263;color:#9cb2bb;font-size:.69rem;line-height:1.5}.fr-current-note{display:grid;grid-template-columns:190px 1fr;gap:25px;margin:48px 0 86px;padding:24px;border-left:4px solid var(--fr-blue);background:rgba(255,255,255,.72)}.fr-current-note span{color:var(--fr-blue);font:850 .65rem var(--font-geist-mono),monospace;letter-spacing:.12em}.fr-current-note p{margin:0;color:var(--fr-muted);line-height:1.65}.fr-course-map>h2{max-width:810px;margin:13px 0;font-size:clamp(2.3rem,4vw,4rem);letter-spacing:-.055em}.fr-course-map>p{max-width:770px;color:var(--fr-muted);line-height:1.72}.fr-course-map>div{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:31px}.fr-course-map a{display:grid;grid-template-columns:46px 1fr auto;gap:12px;align-items:start;padding:22px;border:1px solid var(--fr-line);border-radius:14px;background:rgba(255,255,255,.82);text-decoration:none;transition:transform .2s,border-color .2s}.fr-course-map a:hover{transform:translateY(-2px);border-color:var(--fr-red)}.fr-course-map a>span{color:var(--fr-red);font:850 .73rem var(--font-geist-mono),monospace}.fr-course-map h3{margin:0 0 8px;font-size:1rem}.fr-course-map p{margin:0 0 10px;color:var(--fr-muted);font-size:.8rem;line-height:1.55}.fr-course-map small{color:var(--fr-blue);font-size:.68rem;font-weight:800}.fr-course-map a>b{color:var(--fr-red);font-size:.7rem}.fr-page-nav{display:flex;justify-content:space-between;gap:20px;padding:28px 30px 65px;border-top:1px solid var(--fr-line)}.fr-page-nav a{max-width:46%;color:#a83227;font-size:.76rem;font-weight:850;text-decoration:none}.fr-page-nav a:last-child{text-align:right}@media (max-width:950px){.fr-hero{grid-template-columns:1fr}.fr-concept-row,.fr-topic-grid{grid-template-columns:repeat(2,1fr)}.fr-concept-row>div,.fr-topic-grid>div{border-bottom:1px solid var(--fr-line)}.fr-concept-row i{display:none}.fr-scenario{gap:10px}.fr-artifact,.fr-scenario{grid-template-columns:1fr}}@media (max-width:690px){.fr-article,.fr-home{padding:43px 18px 68px}.fr-article h1{font-size:2.8rem}.fr-concept-row,.fr-course-map>div,.fr-lens-grid,.fr-sources>div,.fr-topic-grid{grid-template-columns:1fr}.fr-concept-row>div,.fr-topic-grid>div{min-height:100px;border-right:0}.fr-current-note{grid-template-columns:1fr}.fr-stats{gap:15px}.fr-course-map a{grid-template-columns:36px 1fr}.fr-course-map a>b{display:none}.fr-worked-example{margin:68px 0;padding:27px 19px}.fr-review-questions ol{grid-template-columns:1fr}.fr-artifact{padding:20px}.fr-artifact dl>div{grid-template-columns:1fr;gap:5px}}