.guide-page{--guide-ink:#302922;--guide-muted:#686154;--guide-line:#deded2;--guide-accent:#a83d32;--guide-sage:#edf2e8;max-width:1180px;color:var(--guide-ink);margin:auto;padding:0 32px}.guide-page a{text-underline-offset:4px}.guide-page :focus-visible{outline-offset:4px;outline:3px solid #427659}.guide-breadcrumb{color:var(--guide-muted);flex-wrap:wrap;align-items:center;gap:12px;padding:30px 0 0;font-size:12px;display:flex}.guide-breadcrumb a:hover{text-decoration:underline}.guide-intro{max-width:830px;padding-bottom:45px}.guide-eyebrow{letter-spacing:.13em;color:var(--guide-accent);align-items:center;gap:9px;margin:35px 0 16px;font:600 11px/1.5 Inter,Segoe UI,sans-serif;display:flex}.guide-intro h1{letter-spacing:-.045em;margin:0 0 22px;font-size:clamp(42px,5vw,68px);font-weight:500;line-height:1.06}.guide-lead{color:var(--guide-muted);max-width:65ch;margin:0 0 20px;font-size:19px;line-height:1.75}.guide-small{color:var(--guide-muted);font-size:12px;line-height:1.8}.guide-section-heading{justify-content:space-between;align-items:center;gap:24px;margin:0 0 24px;display:flex}.guide-section-heading h2{font-size:29px;font-weight:550}.guide-section-heading>a{color:var(--guide-accent);align-items:center;gap:10px;min-height:44px;font-size:13px;display:inline-flex}.guide-cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.guide-topic{border:1px solid var(--guide-line);background:#fffdfa;border-radius:14px;flex-direction:column;min-width:0;padding:25px;text-decoration:none;transition:border-color .15s,background .15s;display:flex}.guide-topic:hover{background:#fff;border-color:#b68c7d}.guide-symbol{background:var(--guide-sage);color:#385741;white-space:nowrap;border-radius:12px;place-items:center;width:48px;height:48px;font:22px Georgia,serif;display:grid}.guide-topic:nth-child(3n+2) .guide-symbol{color:var(--guide-accent);background:#faeae3}.guide-topic:nth-child(3n) .guide-symbol{color:#615674;background:#eeedf5}.guide-topic-level{color:var(--guide-muted);margin:20px 0 8px;font-size:10px}.guide-topic h3{letter-spacing:-.035em;margin:0 0 12px;font:600 22px/1.3 Inter,Segoe UI,sans-serif}.guide-topic p{color:var(--guide-muted);margin:0 0 25px;font-size:14px;line-height:1.8}.guide-topic-link{color:var(--guide-accent);justify-content:space-between;align-items:center;gap:12px;margin-top:auto;font-size:12px;font-weight:600;display:flex}.guide-next-options{grid-template-columns:1fr 1fr;gap:28px;margin:48px 0;display:grid}.guide-next-options>section{border:1px solid var(--guide-line);border-radius:12px;padding:28px}.guide-next-options h2{margin:0 0 12px;font-size:25px}.guide-next-options p{color:var(--guide-muted);margin:0 0 16px;font-size:14px;line-height:1.85}.guide-next-options a{color:var(--guide-accent);align-items:center;gap:12px;min-height:44px;font-size:14px;font-weight:600;display:inline-flex}.guide-help{background:#edf1e6;border:1px solid #d5ddca;border-radius:16px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:40px;margin-top:50px;padding:36px;display:grid}.guide-help .guide-eyebrow{margin:0 0 12px}.guide-help h2{margin:0 0 14px;font-size:32px;line-height:1.2}.guide-help p:not(.guide-eyebrow){max-width:62ch;color:var(--guide-muted);margin:0;font-size:15px;line-height:1.85}.guide-help .btn-primary{white-space:nowrap}.guide-service-link{color:var(--guide-accent);margin-top:16px;font-size:13px;text-decoration:underline;display:inline-block}.guide-disclosure{margin:26px 0 0}.guide-disclosure a{text-decoration:underline}.guide-article-intro{max-width:850px;padding:0 0 40px}.guide-article-intro h1{letter-spacing:-.04em;margin:0 0 24px;font-size:clamp(35px,4.4vw,53px);font-weight:550;line-height:1.13}.guide-practice-link{color:var(--guide-accent);align-items:center;gap:12px;min-height:44px;font-size:14px;font-weight:600;display:inline-flex}.guide-article-layout{grid-template-columns:220px minmax(0,1fr);align-items:start;gap:48px;display:grid}.guide-toc{font-size:12px;position:sticky;top:110px}.guide-toc>p{letter-spacing:.12em;color:var(--guide-muted);margin:0 0 18px;font-size:10px}.guide-toc nav{gap:5px;display:grid}.guide-toc nav a{align-items:baseline;gap:12px;min-height:44px;padding:10px 0;line-height:1.8;display:flex}.guide-toc nav a:hover{color:var(--guide-accent)}.guide-toc nav span{color:#788372;font-size:10px}.guide-toc-practice{color:var(--guide-accent);border-top:1px solid var(--guide-line);justify-content:space-between;align-items:center;gap:15px;margin-top:20px;padding-top:20px;font-weight:600;display:flex}.guide-content{min-width:0}.guide-content .card{border:1px solid var(--guide-line);background:#fffdfa;border-radius:14px;min-width:0;margin:0 0 24px;padding:32px;scroll-margin-top:125px}.guide-content h2{letter-spacing:-.03em;margin:0 0 22px;font:600 27px/1.3 Inter,Segoe UI,sans-serif}.guide-content h3{margin:28px 0 14px;font:600 19px/1.4 Inter,Segoe UI,sans-serif}.guide-content h4{margin:20px 0 12px;font:600 16px/1.5 Inter,Segoe UI,sans-serif}.guide-content p,.guide-content li{margin:0 0 16px;font-size:16px;line-height:1.85}.guide-content ul,.guide-content ol{padding-left:24px}.guide-content ul{list-style:outside}.guide-content ol{list-style:decimal}.guide-content .section-num{color:var(--guide-accent);margin-right:10px}.guide-content .frac{vertical-align:middle;text-align:center;flex-direction:column;margin:0 4px;line-height:1.3;display:inline-flex}.guide-content .frac-num{border-bottom:1px solid;padding:0 4px 2px}.guide-content .frac-den{padding:2px 4px 0}.guide-content .formula-box,.guide-content .formula{background:var(--guide-sage);border-left:3px solid #829772;border-radius:7px;max-width:100%;margin:18px 0;padding:18px 20px;font-size:18px;line-height:1.8;overflow-x:auto}.guide-content .note,.guide-content .memory,.guide-content .warning{color:#645138;background:#fbf1e2;border:1px solid #e7daca;border-radius:8px;margin:18px 0;padding:15px 18px;font-size:14px;line-height:1.8}.guide-content .steps{gap:10px;margin:20px 0;display:grid}.guide-content .step{background:#f7f8f1;border:1px solid #e1e5d9;border-radius:8px;padding:16px 18px;font-size:15px;line-height:1.8}.guide-content .calc{overflow-wrap:anywhere;margin-top:8px;font:15px/1.9 Inter,Segoe UI,sans-serif;display:block}.guide-content .rule-grid,.guide-content .geo-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin:20px 0;display:grid}.guide-content .rule-item,.guide-content .geo-item,.guide-content .rule-card{border:1px solid var(--guide-line);border-radius:8px;min-width:0;padding:16px}.guide-content .rule-name,.guide-content .geo-name,.guide-content .name{color:var(--guide-muted);margin-bottom:8px;font-size:12px}.guide-content .rule-formula,.guide-content .geo-formula{font-size:16px;font-weight:600;line-height:1.8}.guide-content .rule-example,.guide-content .ex{color:var(--guide-muted);margin-top:10px;font-size:13px;line-height:1.8}.guide-content .table-wrap{max-width:100%;margin:22px 0;overflow-x:auto}.guide-content table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.8}.guide-content th,.guide-content td{border:1px solid var(--guide-line);text-align:left;padding:10px 14px}.guide-content th{background:var(--guide-sage);font-weight:600}.guide-content svg{flex:none;max-width:100%;height:auto;overflow:visible}.guide-content .diagram-row{flex-wrap:wrap;justify-content:center;align-items:center;gap:25px;margin:25px 0;display:flex}.guide-content .diagram-row .text{flex:1;min-width:min(250px,100%)}.guide-content .unit-circle-wrap{flex-wrap:wrap;justify-content:center;align-items:center;gap:24px;display:flex}.guide-content .highlight{color:#335940;font-weight:600}.guide-content pre{white-space:pre-wrap;overflow-wrap:anywhere}.guide-level-note{color:var(--guide-muted);margin:-5px 0 28px!important;font-size:12px!important}.guide-practice-callout{background:#f1f4e9;border:1px solid #d5ddca;border-radius:12px;margin-top:30px;padding:28px}.guide-practice-callout h2{font-size:25px}.guide-practice-callout p{font-size:15px}.guide-related{margin:45px 0 0}.guide-related h2{margin-bottom:20px;font-size:27px}.guide-related>div{grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;display:grid}.guide-related a{border:1px solid var(--guide-line);background:#fffdfa;border-radius:10px;justify-content:space-between;align-items:center;gap:14px;padding:20px;font-size:14px;font-weight:600;display:flex}@media(max-width:1000px){.guide-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.guide-article-layout{grid-template-columns:180px minmax(0,1fr);gap:25px}.guide-help{grid-template-columns:1fr;gap:24px}.guide-help .btn-primary{justify-self:start}}@media(max-width:700px){.guide-page{padding:0 20px}.guide-breadcrumb{padding-top:24px;font-size:11px}.guide-intro{padding-bottom:28px}.guide-intro h1{font-size:44px}.guide-lead{font-size:17px;line-height:1.8}.guide-eyebrow{margin-top:28px;font-size:10px}.guide-section-heading{display:block}.guide-section-heading h2{font-size:27px}.guide-section-heading>a{margin-top:8px;font-size:12px}.guide-cards{grid-template-columns:1fr;gap:14px}.guide-topic{padding:22px}.guide-topic-level{font-size:11px}.guide-topic h3{font-size:23px}.guide-topic p{font-size:15px}.guide-symbol{font-size:21px}.guide-next-options{grid-template-columns:1fr;gap:16px;margin:30px 0}.guide-next-options>section{padding:24px}.guide-help{gap:24px;margin-top:35px;padding:25px}.guide-help h2{font-size:30px}.guide-help .btn-primary{white-space:normal;justify-content:center;width:100%}.guide-article-intro{padding-bottom:22px}.guide-article-intro h1{font-size:36px}.guide-article-layout{grid-template-columns:1fr;gap:25px}.guide-toc{border-top:1px solid var(--guide-line);border-bottom:1px solid var(--guide-line);padding:20px 0;position:static}.guide-toc nav{gap:0}.guide-toc nav a{padding:6px 0;font-size:13px}.guide-toc-practice{display:none}.guide-content .card{margin-left:-5px;margin-right:-5px;padding:25px 20px}.guide-content h2{font-size:24px}.guide-content .rule-grid,.guide-content .geo-grid{grid-template-columns:1fr}.guide-content .formula-box{padding:16px;font-size:17px}.guide-content .diagram-row svg{max-width:90%}.guide-related>div{grid-template-columns:1fr}.guide-practice-callout{padding:24px}.guide-content .btn-primary{white-space:normal;justify-content:center;width:100%}}@media(prefers-reduced-motion:reduce){.guide-topic{transition:none}}.guide-entry{grid-template-columns:minmax(0,.9fr) minmax(0,1fr);align-items:start;gap:65px;padding:48px 0 65px;display:grid}.guide-entry-copy{padding-top:10px}.guide-entry-copy .guide-eyebrow{margin-top:0}.guide-entry h1{letter-spacing:-.04em;margin:22px 0 25px;font-size:clamp(40px,5vw,64px);font-weight:500;line-height:1.07}.guide-entry-steps{color:var(--guide-muted);gap:13px;margin:28px 0;padding:0;font-size:14px;list-style:none;display:grid}.guide-entry-steps span{color:#476744;min-width:28px;font-size:11px;font-weight:650;display:inline-block}.guide-checkin{border:1px solid var(--guide-line);background:#fffdfa;border-radius:16px;min-width:0;padding:30px}.guide-checkin h2{letter-spacing:-.025em;margin:12px 0 14px;font:600 25px/1.35 Inter,Segoe UI,sans-serif}.guide-checkin>p{color:var(--guide-muted);margin-bottom:20px;font-size:14px;line-height:1.85}.guide-checkin .guide-small{margin:18px 0 0;font-size:11px}.guide-checkin .guide-checkin-note{background:var(--guide-sage);color:#3c6243;border-radius:5px;margin:0;padding:4px 8px;font-size:11px;display:inline-block}.guide-checkin fieldset{border:0;min-width:0;margin:0;padding:0}.guide-checkin legend{margin:12px 0 22px;font:600 22px/1.5 Inter,Segoe UI,sans-serif}.guide-checkin h2:focus,.guide-checkin legend:focus{outline:none}.guide-choice{border:1px solid var(--guide-line);cursor:pointer;border-radius:9px;align-items:center;gap:14px;margin:10px 0;padding:17px 15px;font-size:15px;line-height:1.65;display:flex}.guide-choice:has(input:checked){background:var(--guide-sage);border-color:#78906f}.guide-choice input{accent-color:#ab493b;flex:none;width:16px;height:16px;margin:0}.guide-choice strong{font-size:15px;display:block}.guide-choice small{color:var(--guide-muted);margin-top:3px;font-size:12px;line-height:1.7;display:block}.guide-checkin .btn-primary{min-height:46px;margin-top:16px}.guide-checkin button{cursor:pointer}.guide-checkin-top{color:var(--guide-muted);justify-content:space-between;align-items:center;gap:14px;font-size:12px;display:flex}.guide-checkin-top button{min-height:44px}.guide-checkin progress{appearance:none;background:#e4e8de;border:0;border-radius:8px;width:100%;height:5px;margin:15px 0 24px;display:block;overflow:hidden}.guide-checkin progress::-webkit-progress-bar{background:#e4e8de}.guide-checkin progress::-webkit-progress-value{background:#587848}.guide-checkin progress::-moz-progress-bar{background:#587848}.guide-checkin .guide-eyebrow{margin:0;font-size:10px}.guide-checkin-actions{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:20px;display:flex}.guide-checkin-actions>button{min-height:44px;font-size:12px}.guide-checkin-actions .btn-primary{margin:0}.guide-error{color:#932b2b;margin-top:15px;font-size:13px}.guide-start-tips{gap:10px;margin:20px 0;display:grid}.guide-start-tips a{background:var(--guide-sage);color:#345636;border:1px solid #d3ddc9;border-radius:8px;justify-content:space-between;align-items:center;padding:16px 18px;font-size:14px;font-weight:600;display:flex}.guide-answer-review{border-bottom:1px solid var(--guide-line);padding:15px 0;font-size:13px}.guide-answer-review summary{cursor:pointer;min-height:44px}.guide-answer-review ol{padding-left:20px;list-style:decimal}.guide-answer-review li{margin:16px 0 24px;line-height:1.8}.guide-answer-review p{margin-top:8px}.guide-result-help{margin:22px 0;font-size:14px}.guide-result-help p{color:var(--guide-muted);margin:8px 0}.guide-result-help a{color:var(--guide-accent);align-items:center;gap:10px;min-height:44px;font-size:13px;text-decoration:underline;display:inline-flex}.guide-reset-checkin{text-underline-offset:4px;min-height:44px;color:var(--guide-muted);font-size:12px;text-decoration:underline}.guide-visually-hidden{clip:rect(0,0,0,0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}#amnen{scroll-margin-top:110px}@media(max-width:1000px){.guide-entry{gap:32px}.guide-entry h1{font-size:49px}.guide-checkin{padding:24px}}@media(max-width:700px){.guide-entry{grid-template-columns:1fr;gap:25px;padding:30px 0 45px}.guide-entry-copy{padding:0}.guide-entry h1{margin:16px 0 20px;font-size:45px}.guide-entry-steps{display:none}.guide-entry-copy .guide-small{margin:0}.guide-entry .guide-lead{font-size:16px}.guide-entry-copy .guide-practice-link{margin-top:8px}.guide-checkin h2{font-size:23px}.guide-checkin .btn-primary{justify-content:center;width:100%}.guide-checkin-actions .btn-primary{order:3}.guide-checkin-actions button{font-size:13px}.guide-choice{padding:16px 14px}}
