.optional-course-note a{color:#1762ff;font-weight:800}
.install-basics-section{background:#dfe8ff!important}
.install-three-actions{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:9px;align-items:center;margin:30px 0}
.install-three-actions article{height:100%;padding:21px;border:1px solid #1519251f;border-radius:14px;background:#fff}
.install-three-actions article>span{float:right;color:#1762ff;font:22px 'DM Mono'}
.install-three-actions small,.install-three-actions b{display:block}
.install-three-actions small{color:#1762ff;font:9px 'DM Mono';letter-spacing:.08em}
.install-three-actions b{margin:11px 0 6px;font-size:18px}
.install-three-actions p{margin:0;color:#626876;font-size:12px;line-height:1.6}
.install-three-actions>i{color:#1762ff;font-style:normal;font-weight:800}
.install-walkthrough{margin:36px 0 13px;border-radius:20px;background:#151925;color:#fff;overflow:hidden;box-shadow:0 24px 55px #15192520}
.install-walkthrough>header{display:grid;grid-template-columns:1fr auto;gap:25px;align-items:end;padding:27px}
.install-walkthrough>header small{color:#8be8bd;font:9px 'DM Mono';letter-spacing:.1em}
.install-walkthrough>header h3{margin:7px 0 6px;font-size:29px}
.install-walkthrough>header p{max-width:620px;margin:0;color:#b9c2cf;font-size:13px}
.install-choice-groups{display:grid;gap:6px}
.install-choice-groups>div{display:flex;padding:4px;border-radius:9px;background:#0d1018}
.install-choice-groups button{min-width:105px;padding:9px 12px;border:0;border-radius:6px;background:transparent;color:#aeb7c6;font-size:11px;font-weight:800;cursor:pointer}
.install-choice-groups button.selected{background:#8be8bd;color:#151925}
.install-progress{height:5px;background:#303746}
.install-progress i{display:block;width:14.285%;height:100%;background:#8be8bd;transition:width .25s ease}
.install-step-tabs{list-style:none;display:grid;grid-template-columns:repeat(7,1fr);gap:0;margin:0;padding:0;border-bottom:1px solid #ffffff15;background:#202633}
.install-step-tabs li{min-width:0}
.install-step-tabs button{width:100%;height:74px;display:flex;align-items:center;justify-content:center;gap:7px;padding:8px;border:0;border-right:1px solid #ffffff12;background:transparent;color:#aeb7c6;font-size:10px;font-weight:800;cursor:pointer}
.install-step-tabs button span{display:grid;place-items:center;width:23px;height:23px;border:1px solid #ffffff25;border-radius:50%;font:9px 'DM Mono'}
.install-step-tabs button.selected{background:#1762ff;color:#fff}
.install-step-tabs button.selected span{border-color:#fff;background:#fff;color:#1762ff}
.install-step-tabs button.completed span{border-color:#8be8bd;background:#8be8bd;color:#151925}
.install-step-panel{min-height:390px;display:grid;grid-template-columns:1.15fr .85fr;gap:10px;padding:27px}
.install-step-copy,.install-step-side{min-width:0;padding:25px;border-radius:13px;background:#202633}
.install-step-copy>small{color:#8be8bd;font:9px 'DM Mono';letter-spacing:.08em}
.install-step-copy h3{margin:10px 0 12px;font-size:32px;line-height:1.05}
.install-step-copy>p{max-width:650px;color:#c1c8d3;font-size:15px;line-height:1.65}
.install-step-copy ul{display:grid;gap:8px;margin:22px 0 0;padding:0;list-style:none}
.install-step-copy li{position:relative;padding:11px 13px 11px 36px;border:1px solid #ffffff12;border-radius:8px;background:#10141d;color:#d6dce6;font-size:12px}
.install-step-copy li:before{content:'✓';position:absolute;left:13px;color:#8be8bd;font-weight:800}
.install-step-side{display:flex;flex-direction:column;justify-content:center;gap:13px}
.install-mini-route{display:flex;align-items:center;justify-content:center;gap:7px;min-height:160px;padding:18px;border-radius:11px;background:#10141d;overflow:auto}
.install-mini-route span,.install-mini-route strong{flex:0 0 auto;padding:13px 14px;border:1px solid #ffffff18;border-radius:8px;background:#252b38;text-align:center;font:9px 'DM Mono'}
.install-mini-route strong{background:#1762ff;color:#fff}
.install-mini-route i{flex:0 0 auto;color:#8be8bd;font-style:normal}
.install-step-side aside{padding:16px;border-left:4px solid #ff7048;background:#ff704815}
.install-step-side aside b{display:block;color:#ffad98;font-size:13px}
.install-step-side aside p{margin:5px 0 0;color:#d3c3c0;font-size:11px;line-height:1.55}
.install-walkthrough>footer{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:17px 27px;background:#0d1018;color:#fff}
.install-walkthrough>footer button{padding:10px 15px;border:1px solid #ffffff24;border-radius:8px;background:#252b38;color:#fff;font-size:11px;font-weight:800;cursor:pointer}
.install-walkthrough>footer button:disabled{opacity:.35;cursor:default}
.install-walkthrough>footer strong{color:#8be8bd;font:9px 'DM Mono';letter-spacing:.08em;text-align:center}
.install-reference-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px;margin-top:13px}
.install-reference-grid article{padding:21px;border:1px solid #1519251c;border-radius:13px;background:#fff}
.install-reference-grid small{color:#1762ff;font:9px 'DM Mono';letter-spacing:.08em}
.install-reference-grid h3{margin:9px 0 7px;font-size:20px}
.install-reference-grid p{margin:0;color:#626876;font-size:13px;line-height:1.6}
.install-reference-grid code{padding:2px 5px;border-radius:4px;background:#eef1f7;color:#1762ff;font:11px 'DM Mono'}
.install-stop-signs{margin-top:12px;padding:22px;border-left:5px solid #ff7048;background:#fff0e9}
.install-stop-signs b{font-size:18px}
.install-stop-signs ul{margin:10px 0;padding-left:20px;color:#4f5764;font-size:13px}
.install-stop-signs li{margin:6px 0}
.install-stop-signs p{margin:11px 0 0;padding-top:11px;border-top:1px solid #ff70483b;color:#626876;font-size:12px}
@media(max-width:900px){.install-three-actions{grid-template-columns:1fr}.install-three-actions>i{transform:rotate(90deg);text-align:center}.install-walkthrough>header,.install-step-panel{grid-template-columns:1fr}.install-step-tabs{overflow:auto;grid-template-columns:repeat(7,minmax(110px,1fr))}}
@media(max-width:650px){.install-choice-groups>div{display:grid;grid-template-columns:1fr 1fr}.install-choice-groups button{min-width:0}.install-step-panel{padding:12px}.install-step-copy,.install-step-side{padding:19px}.install-mini-route{justify-content:flex-start}.install-walkthrough>footer{padding:15px 12px}.install-walkthrough>footer strong{display:none}.install-reference-grid{grid-template-columns:1fr}}