.usage-guide{background:linear-gradient(160deg,#f0f7fa 0%,#f7fafc 60%,#edf6f7 100%);padding-top:86px;padding-bottom:66px;position:relative;scroll-margin-top:34px}
.usage-heading-row{display:flex;justify-content:space-between;align-items:flex-end;gap:60px;margin-bottom:33px}.usage-guide h2{font-size:42px;line-height:1.25;letter-spacing:-1.4px;margin:12px 0 0;color:#173f5d}.usage-guide h2 em{font-style:normal;color:#008d97}.usage-intro{max-width:430px;padding-bottom:4px}.usage-intro>p{font-size:17px;line-height:1.85;color:#617e92}.usage-intro>span{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:500;color:#248693;margin-top:15px}.usage-intro b{font-weight:400;opacity:.5}.usage-icon{width:24px;height:24px;flex-shrink:0;vertical-align:middle}.usage-intro .usage-icon{width:16px;height:16px}
.usage-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}.usage-tab{background:#ffffffb5;border:1px solid #d7e5ed;border-radius:14px;padding:18px 15px;display:flex;align-items:center;gap:12px;text-align:left;color:#547489;position:relative;transition:background .2s,border-color .2s,box-shadow .2s;min-height:90px}.usage-tab:hover{background:#fff;border-color:#82b8c3}.usage-tab.active{background:#fff;border-color:#65b6bf;box-shadow:0 6px 20px #1a657814,inset 0 -3px #009ba2}.usage-tab-icon{display:grid;place-items:center;width:45px;height:45px;background:#eaf4f8;border:1px solid #d5e9ee;border-radius:12px;color:#35899a;flex-shrink:0}.usage-tab-icon .usage-icon{width:26px;height:26px}.usage-tab.active .usage-tab-icon{background:#008e99;color:#fff;border-color:#008e99;box-shadow:0 5px 12px #008d9922}.usage-tab strong{font-size:14px;font-weight:600;display:block;letter-spacing:-.25px;color:#214e69}.usage-tab small{display:block;font-size:11px;line-height:1.6;margin-top:5px;color:#6b8a9a}.usage-tab i{font-style:normal;font-weight:500;color:#c1d4df;font-size:12px;position:absolute;right:13px;top:10px}
.usage-panel{display:grid;grid-template-columns:1.15fr 1fr;border:1px solid #d3e3eb;border-radius:22px;overflow:hidden;background:#fff;box-shadow:0 18px 44px #204d6610}.usage-visual{position:relative;isolation:isolate;display:flex;flex-direction:column;min-width:0;min-height:615px;background:radial-gradient(ellipse at 50% 54%,#214f66 0%,#12394f 38%,#0c293e 85%);color:#fff;overflow:hidden}.usage-visual-grid{position:absolute;inset:0;z-index:-1;background-image:linear-gradient(#b3e7ee05 1px,transparent 1px),linear-gradient(90deg,#b3e7ee05 1px,transparent 1px);background-size:35px 35px;mask-image:radial-gradient(ellipse,#000,transparent 75%)}.usage-demo-top{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:28px 27px 0;position:relative;z-index:2}.usage-demo-category{font-size:9px;font-weight:500;letter-spacing:1.4px;color:#a4d1de}.usage-demo-badge{font-size:8px;letter-spacing:.8px;display:flex;align-items:center;gap:6px;color:#a5c8d6}.usage-demo-badge i{width:5px;height:5px;background:#6ddcd0;border-radius:50%;box-shadow:0 0 10px #79ddd255}.usage-scene{margin:auto 0 0;width:100%;flex:1;align-content:center;min-height:350px}.usage-scene[hidden]{display:none}.usage-scene>svg{width:100%;height:auto;max-height:400px;display:block;overflow:visible}.usage-scene-caption{display:flex;gap:15px;align-items:center;margin:0 28px 23px;min-height:35px}.usage-scene-caption>span{border-right:1px solid #93b7c638;padding-right:14px;white-space:nowrap;font-size:10px;color:#90c7d4;letter-spacing:1px}.usage-scene-caption>p{font-size:14px;font-weight:500;line-height:1.65;color:#e0f2f5}.usage-player{display:flex;align-items:center;gap:14px;border-top:1px solid #a7d1e018;background:#00182b22;padding:17px 24px;min-height:66px}.usage-play{display:flex;align-items:center;gap:8px;min-height:34px;white-space:nowrap;font-size:11px;color:#dbedf1;padding:0}.usage-play .usage-icon{width:18px;height:18px}.usage-play:hover{color:#8ee7e0}.usage-player-track{flex:1;min-width:22px;height:3px;background:#b0dde51c;border-radius:5px;overflow:hidden}.usage-player-track>i{display:block;width:100%;height:100%;background:#79d8d2;transform:scaleX(0);transform-origin:left}.usage-player>span{font-size:9px;letter-spacing:.3px;color:#96b9c9;white-space:nowrap;font-variant-numeric:tabular-nums}.usage-reset{padding:6px;display:grid;place-items:center;color:#b0d4df}.usage-reset>.usage-icon{width:17px;height:17px}.usage-reset:hover{color:#fff}.usage-instructions{padding:33px 32px 27px;min-width:0}.usage-kicker{color:#00959f;font-size:10px;letter-spacing:1.3px;font-weight:600}.usage-instructions h3{font-size:26px;letter-spacing:-.8px;line-height:1.35;color:#1b4865;margin:11px 0 12px}.usage-description{font-size:14px;line-height:1.8;color:#7190a1;min-height:48px}.usage-step-list{list-style:none;padding:0;margin:21px 0 19px;display:flex;flex-direction:column;gap:9px}.usage-step-list li{position:relative}.usage-step{display:flex;gap:12px;width:100%;text-align:left;border:1px solid transparent;padding:12px 10px;border-radius:12px;transition:background .2s,border .2s;background:#f7fafc;color:#365d74}.usage-step:hover{background:#edf6f8}.usage-step.current{background:#edf8f8;border-color:#a5d9db}.usage-step-number{flex-shrink:0;width:27px;height:27px;border:1px solid #c8dce5;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:600;color:#85a6b6;background:#fff;margin-top:1px}.usage-step.current .usage-step-number{background:#0098a0;color:#fff;border-color:#0098a0;box-shadow:0 3px 8px #0098a01c}.usage-step strong{font-size:14px;font-weight:600;line-height:1.6;display:block;color:#275871}.usage-step small{display:block;font-size:12px;line-height:1.8;margin-top:3px;color:#718c9d}.usage-step.current strong{color:#007f89}.usage-topic-note{display:flex;gap:9px;padding:12px 0 0;border-top:1px solid #e7eef2;color:#7a929f}.usage-topic-note>.usage-icon{width:17px;height:17px;margin-top:2px;color:#4c9bab}.usage-topic-note p{font-size:11px;line-height:1.8}.usage-essential{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:27px}.usage-essential article{display:flex;gap:13px;padding:7px 0;align-items:flex-start}.usage-essential article>.usage-icon{width:27px;height:27px;color:#2c92a0;margin-top:3px}.usage-essential h3{font-size:15px;line-height:1.5;letter-spacing:-.25px;margin:0 0 7px;color:#2c5870;font-weight:600}.usage-essential p{font-size:12px;line-height:1.9;color:#7a95a5}.usage-footer{border-top:1px solid #d6e5ed;margin-top:24px;padding-top:23px;display:flex;align-items:center;justify-content:space-between;gap:50px}.usage-footer>p{font-size:11px;line-height:1.9;color:#7b94a4;max-width:740px}.usage-help{font-size:12px;color:#008d98;font-weight:600;display:flex;align-items:center;gap:12px;white-space:nowrap;padding:10px 0}.usage-help .usage-icon{width:20px;height:20px}.usage-sources{margin-top:20px;border-top:1px solid #dbe7ed;color:#8099a8}.usage-sources>summary{list-style:none;display:flex;justify-content:space-between;cursor:pointer;padding:17px 0 0;font-size:11px}.usage-sources>summary::-webkit-details-marker{display:none}.usage-sources summary>span{font-size:19px;line-height:1;color:#69a5b4}.usage-sources[open] summary>span{transform:rotate(45deg)}.usage-sources>div{padding-top:17px;max-width:950px}.usage-sources p,.usage-sources li{font-size:11px;line-height:1.9}.usage-sources ul{padding-left:18px;margin:12px 0 0}.usage-sources a{text-decoration:underline;text-underline-offset:3px;color:#5e879c}.usage-sources a:hover{color:#008d98}
@media(min-width:1500px){.usage-instructions{padding:37px 40px 30px}.usage-instructions h3{font-size:30px}.usage-description{font-size:16px}.usage-step{padding:14px 13px}.usage-step strong{font-size:16px}.usage-step small{font-size:14px}.usage-topic-note p{font-size:12px}.usage-visual{min-height:656px}.usage-scene>svg{max-height:460px}.usage-scene-caption>p{font-size:16px}.usage-essential h3{font-size:17px}.usage-essential p{font-size:14px}.usage-tab strong{font-size:16px}.usage-tab small{font-size:12px}}
@media(max-width:1100px){.usage-tab{padding:17px 12px;gap:9px}.usage-tab-icon{width:36px;height:40px}.usage-tab strong{font-size:12px}.usage-tab small{font-size:9px}.usage-tab i{display:none}.usage-instructions{padding:26px 23px}.usage-instructions h3{font-size:22px}.usage-step{padding:10px 7px;gap:9px}.usage-step strong{font-size:12px}.usage-step small{font-size:11px}.usage-visual{min-height:590px}.usage-player{gap:10px;padding:15px 18px}.usage-play{font-size:10px}.usage-player>span{font-size:8px}.usage-heading-row{gap:32px}.usage-guide h2{font-size:36px}.usage-intro{max-width:365px}.usage-intro p{font-size:15px}.usage-demo-top{padding:23px 19px 0}.usage-demo-category{font-size:8px}.usage-demo-badge{font-size:7px}}
@media(max-width:800px){.usage-guide{padding-top:58px;padding-bottom:45px}.usage-heading-row{display:block;margin-bottom:25px}.usage-guide h2{font-size:32px;letter-spacing:-1px}.usage-intro{max-width:530px;margin-top:18px}.usage-intro>p{font-size:15px;line-height:1.8}.usage-intro>span{font-size:11px}.usage-tabs{grid-template-columns:1fr 1fr;gap:9px;margin-bottom:15px}.usage-tab{padding:14px 11px;min-height:79px;border-radius:12px;gap:9px}.usage-tab strong{font-size:11px;letter-spacing:-.15px}.usage-tab small{font-size:9px;margin-top:3px}.usage-tab-icon{width:32px;height:35px;border-radius:9px}.usage-tab-icon .usage-icon{width:21px;height:21px}.usage-panel{grid-template-columns:1fr;border-radius:17px}.usage-visual{min-height:350px}.usage-demo-top{padding:20px 18px 0}.usage-scene{min-height:240px}.usage-scene>svg{max-height:340px}.usage-scene-caption{margin:0 20px 15px;gap:11px;min-height:35px}.usage-scene-caption>p{font-size:12px}.usage-scene-caption>span{font-size:9px;padding-right:11px}.usage-demo-category{font-size:7px;letter-spacing:1px}.usage-demo-badge{font-size:6px;letter-spacing:.5px}.usage-player{padding:12px 16px;min-height:57px;gap:10px}.usage-play{font-size:10px}.usage-player>span{font-size:8px}.usage-instructions{padding:27px 21px 24px}.usage-kicker{font-size:9px}.usage-instructions h3{font-size:24px;line-height:1.4;margin:10px 0}.usage-description{font-size:14px;min-height:0}.usage-step-list{gap:9px;margin-top:19px}.usage-step{padding:13px 11px;gap:11px}.usage-step strong{font-size:13px}.usage-step small{font-size:12px;line-height:1.85}.usage-step-number{width:27px;height:27px}.usage-topic-note p{font-size:11px}.usage-essential{grid-template-columns:1fr;gap:17px;margin-top:25px}.usage-essential article{padding:0;gap:13px}.usage-essential h3{font-size:15px;margin-bottom:5px}.usage-essential p{font-size:12px}.usage-essential article>.usage-icon{width:25px;height:25px}.usage-footer{display:block;margin-top:23px;padding-top:19px}.usage-footer>p{font-size:10px}.usage-help{font-size:12px;margin-top:10px}.usage-sources{margin-top:12px}.usage-sources>summary{font-size:10px}.usage-sources p,.usage-sources li{font-size:10px}}
@media(prefers-reduced-motion:reduce){.usage-guide *{scroll-behavior:auto;transition:none!important}}
/* Comfortable reading sizes for the main instructional copy. */
@media(min-width:801px){.usage-tab strong{font-size:15px}.usage-tab small{font-size:11px}.usage-description{font-size:16px}.usage-step strong{font-size:15px}.usage-step small{font-size:14px;line-height:1.8}.usage-topic-note p{font-size:12px}.usage-essential p{font-size:13px}.usage-footer>p{font-size:12px}.usage-sources>summary{font-size:12px}.usage-sources p,.usage-sources li{font-size:12px}.usage-panel{align-items:stretch}.usage-visual{min-height:640px}}
@media(min-width:801px) and (max-width:1100px){.usage-tab strong{font-size:12px}.usage-description{font-size:14px}.usage-step strong{font-size:14px}.usage-step small{font-size:12px}.usage-essential p{font-size:12px}.usage-instructions{padding:26px 23px}}
@media(max-width:800px){.usage-step strong{font-size:14px}.usage-step small{font-size:13px}.usage-topic-note p{font-size:12px}.usage-essential p{font-size:13px}.usage-footer>p{font-size:11px}.usage-tab strong{font-size:12px}.usage-tab small{font-size:10px}.usage-sources>summary{font-size:11px}.usage-sources p,.usage-sources li{font-size:11px}}

.usage-guide{scroll-margin-top:-95px}