.tap-lesson{--navy:#07101a;--deep:#040c13;--teal:#00e3d0;--blue:#4f8cff;--ink:#e8f0f8;--muted:#a2b5c8;--line:#203649;--frame:1380px;margin:0;color:var(--ink);background:radial-gradient(ellipse at 80% 0,rgba(79,140,255,.09),transparent 35%),var(--deep);font:17px/1.75 'Segoe UI',Roboto,Arial,sans-serif}.tap-lesson *{box-sizing:border-box}.tap-lesson a{color:var(--teal);text-decoration:none}.tap-lesson a:hover{text-decoration:underline}.tap-lesson :focus-visible{outline:3px solid var(--teal);outline-offset:5px}.tap-lesson .skip{position:absolute;top:-90px;left:20px;background:var(--teal);color:var(--deep);padding:12px;z-index:10}.tap-lesson .skip:focus{top:12px}.tap-lesson .site-header,.tap-lesson footer{max-width:var(--frame);padding:24px 40px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}.tap-lesson .site-header{border-bottom:1px solid #ffffff0d}.tap-lesson .brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-size:23px;font-weight:700;letter-spacing:-.6px}.tap-lesson .brand span span{color:var(--teal)}.tap-lesson .brand img{object-fit:contain}.tap-lesson .back{display:inline-flex;align-items:center;gap:10px;padding:9px 17px;border:1px solid #00e3d047;border-radius:8px;font-size:14px}.tap-lesson main{max-width:var(--frame);margin:auto;padding:0 40px 50px}.tap-lesson .hero{display:grid;grid-template-columns:.9fr 1.1fr;align-items:center;gap:50px;padding:65px 0 55px}.tap-lesson .eyebrow{font-size:11px;font-weight:700;letter-spacing:2.2px;color:var(--teal);margin:0 0 20px}.tap-lesson h1{font-size:clamp(70px,8vw,126px);font-weight:750;letter-spacing:-6px;line-height:.99;margin:0 0 28px}.tap-lesson h1 span{color:var(--teal)}.tap-lesson .standfirst{font-size:20px;line-height:1.6;color:var(--muted);margin:0 0 28px;max-width:460px}.tap-lesson .primary{display:inline-flex;justify-content:space-between;gap:32px;background:var(--teal);color:#04131b;font-size:15px;font-weight:650;border-radius:8px;padding:12px 20px}.tap-lesson .hero-note{font-size:12px;color:var(--muted);margin:14px 0 0}.tap-lesson .hero-art{border:1px solid #2a4359;border-radius:20px;overflow:hidden;background:#08131f;box-shadow:0 25px 90px #00000030}.tap-lesson .art-tag{font-size:11px;letter-spacing:2px;color:var(--muted);padding:22px 25px 0}.tap-lesson .hero-art img{display:block;width:100%;height:auto}.tap-lesson .hero-legend{display:flex;gap:22px;flex-wrap:wrap;padding:15px 25px 21px;font-size:12px;color:var(--muted);border-top:1px solid #ffffff0a}.tap-lesson .hero-legend i{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:7px;background:var(--teal)}.tap-lesson .hero-legend i.blue{background:var(--blue)}.tap-lesson .lesson-route{border-top:1px solid var(--line);padding:22px 0 32px}.tap-lesson .lesson-route>p{font-size:10px;letter-spacing:2px;color:var(--muted);margin:0 0 15px}.tap-lesson .lesson-route nav{display:flex;gap:8px;flex-wrap:wrap}.tap-lesson .lesson-route a{display:flex;gap:9px;padding:7px 12px;border:1px solid var(--line);border-radius:6px;font-size:12px;color:var(--muted)}.tap-lesson .lesson-route a span{color:var(--teal)}.tap-lesson .lesson-route a:hover{border-color:var(--teal);text-decoration:none}.tap-lesson .lesson-frame{border:1px solid var(--line);border-radius:22px;overflow:hidden;background:#08121ce6}.tap-lesson .chapter{display:grid;grid-template-columns:1fr 1.08fr;gap:64px;align-items:center;padding:65px 54px;position:relative;scroll-margin-top:24px}.tap-lesson .chapter+.chapter{border-top:1px solid var(--line)}.tap-lesson .chapter:nth-child(even){background:#0a172333;grid-template-columns:1.08fr 1fr}.tap-lesson .chapter.reverse .chapter-copy{grid-column:2;grid-row:1}.tap-lesson .chapter.reverse .diagram{grid-column:1;grid-row:1}.tap-lesson .chapter-index{display:flex;align-items:center;gap:15px;margin-bottom:25px}.tap-lesson .chapter-index>span{font-size:37px;font-weight:300;line-height:1;color:var(--teal);letter-spacing:-1px}.tap-lesson .chapter-index>p{font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--muted);margin:0;border-left:1px solid #355166;padding-left:16px}.tap-lesson h2{font-size:clamp(27px,2.5vw,38px);line-height:1.18;letter-spacing:-1px;margin:0 0 25px;font-weight:650;text-wrap:balance}.tap-lesson .chapter-copy>p{font-size:16px;line-height:1.85;color:var(--muted);margin:0 0 18px;max-width:55ch}.tap-lesson .reading-note{border-left:2px solid var(--teal);padding:2px 0 2px 18px;margin-top:26px}.tap-lesson .reading-note h3{font-size:14px;font-weight:600;color:var(--ink);margin:0 0 6px}.tap-lesson .reading-note p{font-size:13px;line-height:1.7;color:var(--muted);margin:0}.tap-lesson .diagram{margin:0;border:1px solid #2a4359;background:#08131f;border-radius:14px;overflow:hidden;min-width:0}.tap-lesson .figure-top{display:flex;justify-content:space-between;gap:10px;padding:14px 20px;border-bottom:1px solid #ffffff0a;font-size:10px;letter-spacing:1.8px;color:var(--muted)}.tap-lesson .figure-top span:first-child{color:var(--teal)}.tap-lesson .diagram>img{display:block;width:100%;height:auto}.tap-lesson .diagram-key{padding:14px 20px 18px;border-top:1px solid #ffffff0a}.tap-lesson .diagram-key p{font-size:12px;line-height:1.5;margin:0 0 8px;display:flex;gap:10px;color:#d0dce7}.tap-lesson .diagram-key p span{font-size:10px;color:var(--teal);border:1px solid #00e3d037;padding:1px 5px;border-radius:4px;align-self:start;flex-shrink:0}.tap-lesson figcaption{font-size:11px;line-height:1.65;color:var(--muted);margin-top:12px;border-top:1px solid #ffffff0b;padding-top:11px}.tap-lesson .takeaway{padding:55px 0 30px}.tap-lesson .takeaway h2{font-size:40px}.tap-lesson .takeaway-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin:30px 0}.tap-lesson .takeaway-grid p{font-size:17px;margin:0;padding-left:17px;border-left:1px solid #00e3d050;max-width:32ch}.tap-lesson .takeaway-grid span{display:block;color:var(--teal);font-size:10px;letter-spacing:2px;margin-bottom:10px}.tap-lesson .sources{border-top:1px solid var(--line);padding:22px 0;font-size:13px;line-height:1.8;color:var(--muted)}.tap-lesson summary{color:var(--ink);font-size:14px;cursor:pointer}.tap-lesson .sources ul{padding-left:20px}.tap-lesson footer{border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.tap-lesson footer .brand{font-size:18px}

@media(min-width:1600px){.tap-lesson{--frame:1460px}.tap-lesson .chapter{gap:80px;padding:76px 66px}.tap-lesson .chapter-copy>p{font-size:17px}.tap-lesson .diagram-key p{font-size:13px}}

@media(max-width:1199px){.tap-lesson main{padding-inline:28px}.tap-lesson .site-header,.tap-lesson footer{padding-inline:28px}.tap-lesson .hero{gap:28px;padding-block:48px}.tap-lesson h1{font-size:86px;letter-spacing:-4px}.tap-lesson .chapter{padding:46px 30px;gap:32px}.tap-lesson h2{font-size:30px}.tap-lesson .chapter-copy>p{font-size:15px;line-height:1.8}.tap-lesson .standfirst{font-size:18px}}

@media(min-width:981px) and (max-width:1099px){.tap-lesson .chapter{gap:24px;padding:38px 25px}.tap-lesson .chapter-index{margin-bottom:20px}.tap-lesson .reading-note{margin-top:18px}}

@media(max-width:980px){.tap-lesson .chapter,.tap-lesson .chapter:nth-child(even){grid-template-columns:1fr;gap:28px;padding:42px 38px}.tap-lesson .chapter.reverse .chapter-copy,.tap-lesson .chapter.reverse .diagram{grid-column:auto;grid-row:auto}.tap-lesson .chapter-copy>p{max-width:68ch;font-size:16px}.tap-lesson .diagram{width:100%;max-width:640px;justify-self:center}.tap-lesson h2{font-size:34px;max-width:24ch}.tap-lesson .hero{grid-template-columns:1fr 1fr;gap:24px}.tap-lesson h1{font-size:74px}.tap-lesson .standfirst br{display:none}.tap-lesson .hero-legend{gap:8px}.tap-lesson .takeaway-grid{gap:20px}.tap-lesson .takeaway-grid p{font-size:15px}}

@media(max-width:760px){.tap-lesson main{padding-inline:20px}.tap-lesson .site-header,.tap-lesson footer{padding:20px}.tap-lesson .hero{grid-template-columns:1fr;padding-block:38px;gap:32px}.tap-lesson h1{font-size:90px}.tap-lesson .hero-copy{max-width:550px}.tap-lesson .standfirst{max-width:500px}.tap-lesson .hero-art{max-width:600px;width:100%;justify-self:center}.tap-lesson .chapter{padding:35px 25px}.tap-lesson .lesson-frame{border-radius:15px}.tap-lesson .chapter-index{margin-bottom:20px}.tap-lesson .takeaway-grid{grid-template-columns:1fr;gap:22px}.tap-lesson .takeaway-grid p{max-width:none}.tap-lesson footer{flex-wrap:wrap}.tap-lesson .hero-legend{gap:18px}}

@media(max-width:480px){.tap-lesson main{padding-inline:12px}.tap-lesson .site-header{padding:16px 14px}.tap-lesson .brand{font-size:19px;gap:8px}.tap-lesson .brand img{width:29px;height:32px}.tap-lesson .back{font-size:12px;padding:8px 11px}.tap-lesson .hero{padding:30px 6px;gap:28px}.tap-lesson h1{font-size:78px}.tap-lesson .eyebrow{font-size:9px;letter-spacing:1.4px}.tap-lesson .standfirst{font-size:17px}.tap-lesson .chapter{padding:30px 17px;gap:23px}.tap-lesson h2{font-size:28px;letter-spacing:-.7px}.tap-lesson .chapter-copy>p{font-size:15px}.tap-lesson .chapter-index>span{font-size:31px}.tap-lesson .chapter-index>p{font-size:10px;letter-spacing:1.4px}.tap-lesson .figure-top{padding:12px;font-size:9px;letter-spacing:1px}.tap-lesson .diagram-key{padding:12px}.tap-lesson .diagram-key p{font-size:12px}.tap-lesson figcaption{font-size:11px}.tap-lesson .lesson-route{padding-inline:6px}.tap-lesson .lesson-route nav{gap:6px}.tap-lesson .lesson-route a{font-size:11px;padding:6px 9px}.tap-lesson .hero-legend{padding:14px;font-size:11px;gap:10px}.tap-lesson .takeaway{padding:38px 7px 25px}.tap-lesson .takeaway h2{font-size:30px}.tap-lesson .sources{padding:20px 7px}.tap-lesson footer{padding:20px 18px}.tap-lesson .sources a{overflow-wrap:anywhere}}
@media(prefers-reduced-motion:no-preference){.tap-lesson{scroll-behavior:smooth}}
@media print{.tap-lesson{background:white;color:#17212b;font-size:12px}.tap-lesson .site-header,.tap-lesson .hero,.tap-lesson .lesson-route,.tap-lesson footer,.tap-lesson .primary{display:none}.tap-lesson main{padding:0}.tap-lesson .chapter{break-inside:avoid;gap:22px;padding:25px 15px}.tap-lesson .chapter-copy>p,.tap-lesson .reading-note p{color:#273849}.tap-lesson h2{color:#17212b}.tap-lesson .sources{display:block}.tap-lesson .lesson-frame{border:0}}
.tap-lesson .diagram picture,.tap-lesson .hero-art picture{display:block}.tap-lesson picture img{display:block;width:100%;height:auto}
.tap-lesson .enlarge-diagram{display:block;width:calc(100% - 40px);margin:0 20px 18px;padding:10px 14px;text-align:left;color:var(--teal);border:1px solid #35546a;background:#102434;border-radius:7px;font:inherit;font-size:13px;cursor:pointer}.tap-lesson .diagram-dialog{padding:0;width:min(1040px,96vw);max-width:96vw;max-height:92vh;border:1px solid #638095;border-radius:16px;background:#07111d;color:#e8f0f8}.tap-lesson .diagram-dialog::backdrop{background:#000b}.tap-lesson .zoom-bar{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid #2a4054}.tap-lesson .zoom-bar p{margin:0}.tap-lesson .zoom-bar button{background:#193143;border:1px solid #53758b;border-radius:6px;color:#e8f0f8;padding:9px 15px;font:inherit;cursor:pointer}.tap-lesson .zoom-scroll{overflow:auto;max-height:calc(92vh - 132px)}.tap-lesson .zoom-scroll img{display:block;width:960px;max-width:none;height:auto}.tap-lesson .zoom-hint{padding:0 20px;font-size:12px;color:#9cacc0}.tap-lesson .review-version{background:#0c3134;color:#bdece8;padding:12px 20px;text-align:center;font-size:13px;border-bottom:1px solid #00e3d04d}

.tap-lesson .attack-intro{padding:50px 54px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(120deg,#17272d,#0a1723)}
.tap-lesson .attack-intro>p:not(.eyebrow){max-width:76ch;color:var(--muted)}
.tap-lesson .attack-intro .attack-legend{font-size:12px}.tap-lesson .attack-legend span{color:#ffac79}
.tap-lesson .attack-chapter .reading-note{border-color:#ffac79}
@media(max-width:1199px){.tap-lesson .attack-intro{padding:40px 30px}}
@media(max-width:760px){.tap-lesson .attack-intro{padding:35px 25px}}
@media(max-width:480px){.tap-lesson .attack-intro{padding:30px 17px}}

.tap-lesson .hero h1{font-size:clamp(48px,6.1vw,88px);line-height:1.06;letter-spacing:-2.5px;max-width:10ch}
@media(max-width:480px){.tap-lesson .hero h1{font-size:52px;letter-spacing:-1.8px}}

.tap-lesson .payment-guidance{padding:48px 0 32px;margin-top:32px;border-bottom:1px solid var(--line)}
.tap-lesson .payment-guidance>p:not(.eyebrow){max-width:80ch;color:var(--muted)}
.tap-lesson .payment-guidance h2{max-width:30ch}.tap-lesson .payment-guidance .guidance-sources{font-size:12px}
@media(max-width:480px){.tap-lesson .payment-guidance{padding:32px 7px 24px}.tap-lesson .guidance-sources a{overflow-wrap:anywhere}}

.tap-lesson .chapter-copy .reading-note p{max-width:62ch}
.tap-lesson .payment-guidance .guidance-caution{border-left:2px solid var(--teal);padding:2px 0 2px 16px;color:var(--ink);font-size:15px;line-height:1.75}
.tap-lesson .payment-guidance .takeaway-grid p{font-size:15px;line-height:1.7}
.tap-lesson .takeaway .takeaway-grid p{font-size:15px;line-height:1.7}
.tap-lesson .sources p{max-width:110ch}
@media(max-width:760px){.tap-lesson .payment-guidance .takeaway-grid{grid-template-columns:1fr}}
@media(max-width:480px){.tap-lesson .payment-guidance .guidance-caution{font-size:14px}}