:root{--bi-ink:#173b4b;--bi-teal:#146b62;--bi-gold:#e4b844;--bi-soft:#f1f5f3}.site-header nav{gap:20px}.brand-sub{letter-spacing:.12em}.bi-board{padding:28px;border:1px solid #d6e0dc;background:#fff;border-radius:18px;box-shadow:0 22px 65px #183b4b15;transform:rotate(-1deg)}.board-top{display:flex;align-items:center;gap:7px;font-size:10px;letter-spacing:.07em;font-weight:700;color:#547169}.board-top>span:last-child{margin-left:auto;font-size:9px}.board-heading{font-size:27px;font-weight:600;margin:28px 0 22px;color:var(--bi-ink)}.board-heading small{display:block;font-size:12px;margin-top:5px;color:#627772;font-weight:400}.board-kpis{display:grid;grid-template-columns:1.3fr 1fr .7fr;gap:12px;padding-bottom:18px;border-bottom:1px solid #dce6df}.board-kpis span{display:block;font-size:10px;margin-bottom:8px;color:#567169}.board-kpis strong{font-size:25px;color:var(--bi-ink);white-space:nowrap}.board-chart{height:200px;padding-top:30px;display:flex;gap:25px;align-items:end}.board-chart>div{height:100%;flex:1;display:flex;flex-direction:column;justify-content:end;align-items:center}.board-chart i{width:72%;background:var(--bi-teal);border-radius:5px 5px 0 0;display:block}.board-chart>div:nth-child(2) i{background:#d9ac35}.board-chart span{font-size:11px;margin:10px 0 3px}.board-chart b{font-size:10px;font-weight:500}.board-bottom{margin-top:22px;border-top:1px solid #dce6df;padding-top:13px;display:flex;justify-content:space-between;font-size:10px;color:#547169}.narrow{max-width:880px}.learning-home h1{font-size:clamp(36px,4vw,60px);margin:15px 0}.study-summary{display:flex;align-items:center;gap:32px;padding:26px;background:var(--bi-soft);border-radius:12px;margin:30px 0 12px}.study-summary strong{display:block;font-size:28px}.study-summary span{font-size:13px;display:block}.study-summary progress{flex:1;accent-color:var(--bi-teal);height:12px;min-width:100px}.study-module{margin:45px 0;border-top:1px solid #d8e1dc;padding-top:28px}.module-heading{display:flex;gap:25px}.module-heading h2{font-size:25px;margin:0 0 5px}.module-heading p{margin:0 0 20px;color:#536860}.lesson-list>a{display:flex;gap:18px;align-items:center;padding:22px 14px;text-decoration:none;border-bottom:1px solid #e2e8e3;color:var(--bi-ink)}.lesson-list>a:hover{background:#f4f7f3}.lesson-list small{display:block;color:#657870;font-size:13px;margin-top:5px;max-width:680px}.lesson-time{margin-left:auto;white-space:nowrap;font-size:12px;color:#61756c}.lesson-state{font-size:24px;color:var(--bi-teal)}.quiz-link{display:block;padding:22px 15px;color:var(--bi-teal);font-weight:600}.study-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:65px;padding-top:50px;padding-bottom:70px}.study-nav{align-self:start;position:sticky;top:20px;font-size:13px}.study-nav a{display:block;padding:13px 12px;color:var(--bi-ink);text-decoration:none;border-bottom:1px solid #e4e9e4}.study-nav .current{background:#e8f1ed;font-weight:700;border-left:3px solid var(--bi-teal)}.study-nav .eyebrow{margin:22px 10px 5px}.lesson-content{max-width:820px;min-width:0}.lesson-content h1{font-size:clamp(28px,3vw,43px);line-height:1.2}.lesson-content h2,.narrow h2{font-size:25px;line-height:1.3}.lesson-body{line-height:1.85}.lesson-body p{margin-bottom:23px}.lesson-goal{border-left:3px solid var(--bi-gold);padding:12px 20px;background:#faf7eb;font-size:18px;line-height:1.6;margin:25px 0}.lesson-body pre,.guide-body pre{padding:22px;background:#183b4b;color:#eef6ef;border-radius:8px;overflow:auto;font-size:13px;line-height:1.7}.lesson-body code{font-size:.88em}.lesson-body li{margin:8px 0}.exercise{background:#eef4ef;padding:28px;border-radius:10px;margin:32px 0}.exercise h2{margin-top:6px}.exercise details{border-top:1px solid #cad9cf;padding:17px 0 0;margin-top:17px}.exercise summary{cursor:pointer;font-weight:600}.exercise details p{line-height:1.8}.lesson-check{padding:3px 0 22px;border-bottom:1px solid #e1e7e1;margin-bottom:28px}.lesson-content textarea{width:100%;border:1px solid #b5c6bc;border-radius:6px;font:inherit;padding:12px}.lesson-pagination{display:flex;justify-content:space-between;gap:15px;margin-top:45px;font-size:14px}.resource-card{padding:28px;border:1px solid #d8e1dc;border-radius:10px;margin:25px 0}.resource-card h2{margin-top:0}.table-scroll{overflow:auto}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:13px 10px;border-bottom:1px solid #dce5df}th{background:var(--bi-ink);color:white}fieldset.quiz-question{border:1px solid #d7e2da;border-radius:9px;margin:25px 0;padding:22px}fieldset.quiz-question legend{padding:0 8px;font-weight:600;font-size:17px}.quiz-explanation{background:#edf3ee;padding:14px 18px;margin-top:15px}.quiz-explanation p{margin-bottom:0}.quiz-result{padding:22px;background:#f7f0d9;border-radius:9px}.guide-body{line-height:1.85}.guide-body h2{margin-top:35px}.guide-body p{margin:18px 0}.form-page select{width:100%;padding:12px;border:1px solid #bbc9c0;margin-bottom:20px;font:inherit}.section h1{line-height:1.14}.site-header nav a{white-space:nowrap}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #b4780a;outline-offset:4px}
@media(max-width:900px){.study-layout{grid-template-columns:1fr;gap:25px}.study-nav{position:static;display:flex;flex-wrap:wrap;gap:6px}.study-nav a{border:1px solid #dce5dd;padding:9px;font-size:12px}.study-nav .eyebrow{display:none}.study-summary{flex-wrap:wrap}.site-header{align-items:flex-start}.site-header nav{flex-wrap:wrap;gap:12px}.hero-visual{max-width:520px}.board-kpis strong{font-size:22px}}
@media(max-width:540px){.bi-board{padding:20px;transform:none}.board-kpis strong{font-size:21px}.board-top{font-size:9px}.board-top>span:last-child{font-size:8px}.board-chart{gap:12px;height:175px}.board-chart b{font-size:9px}.study-layout{padding-top:25px}.study-summary{gap:18px;padding:20px}.study-summary progress{width:100%;flex:auto}.lesson-list>a{gap:10px;align-items:flex-start}.lesson-time{display:none}.exercise{padding:20px}.lesson-body pre{padding:16px;font-size:12px}.resource-card{padding:20px}.board-bottom{font-size:9px}.site-header nav{font-size:11px;max-width:190px}.site-header nav .nav-program{display:none}}
@media print{.site-header,.site-footer,.study-nav,.measurement-banner,form,.lesson-pagination{display:none!important}.study-layout{display:block}.lesson-content{max-width:none}.lesson-body pre{white-space:pre-wrap;background:#f1f1f1;color:#111}.exercise{break-inside:avoid}details{display:block}body{font-size:11pt}.section{padding:0}}