:root{color-scheme:dark;--bg:#101624;--panel:#161e2e;--line:#303a4a;--text:#f6f7f8;--muted:#a8b4c5;--gold:#ffdf47;--green:#9cd7bb;--font:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;line-height:1.5}button,input,textarea,select{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.42}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--gold);outline-offset:4px}a{color:inherit;text-decoration:none}button{color:inherit}button,select{border:0}h1,h2,p{margin:0}h1,h2{letter-spacing:-.04em;line-height:1.1}p{color:var(--muted)}[hidden]{display:none!important}.topbar{height:78px;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 42px;gap:35px}.brand{display:flex;align-items:center;gap:11px}.brand 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span{font-size:9px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}.contract strong{font-weight:500;color:#e8e8d5}.image-dialog{background:#121a29;color:var(--text);border:1px solid #49556a;padding:12px;border-radius:8px;width:min(1500px,96vw);max-height:96vh;overflow:auto}.image-dialog img{display:block;width:100%;margin-top:12px}.image-dialog button{margin-left:auto}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#e9eedf;color:#17211d;padding:12px 20px;border-radius:7px;font-size:12px;box-shadow:0 10px 40px #0007;z-index:20}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes pulse{0%,100%{opacity:.4;transform:scale(1)}50%{opacity:1;transform:scale(1.007)}}@media(prefers-reduced-motion:reduce){*,*::after{animation:none!important;transition:none!important}.intro-visual{transform:none}}@media(min-width:1550px){.screen{max-height:520px;overflow:auto}.screen>img{width:100%}}@media(max-width:1100px){.welcome{padding:48px 30px;gap:30px}.intro-copy h1{font-size:43px}.start-row{flex-wrap:wrap;gap:10px}.tour{grid-template-columns:210px minmax(0,1fr)}.workspace{padding:23px}.sidebar{padding:25px 12px}.mode-row>span{max-width:160px;text-align:right}.topbar{padding:0 28px}.stage-instruction{flex-wrap:wrap}.stage-instruction button{margin-left:auto}}@media(max-width:760px){.topbar{height:64px;padding:0 18px;gap:15px}.brand>span{font-size:24px}.brand svg{width:25px}.top-context>span:last-child{display:none}.text-link{font-size:11px}.welcome{grid-template-columns:1fr;padding:40px 22px 25px;gap:30px}.intro-copy h1{font-size:44px}.lede{font-size:15px}.intro-metrics{gap:35px;margin:25px 0}.intro-visual{transform:none}.intro-bottom{display:block;padding:23px 0 0}.intro-bottom p{margin-top:9px;font-size:11px}.tour{grid-template-columns:1fr;min-height:calc(100vh - 64px)}.sidebar{border-right:0;border-bottom:1px solid var(--line);padding:12px 17px;display:block}.sidebar-head{display:none}#steps-nav{display:flex;gap:7px;overflow-x:auto;padding:1px}.chapter{display:none}.step-nav{padding:5px;gap:6px;min-width:32px;width:auto;flex-shrink:0}.step-nav span:last-child{display:none}.step-nav.current span:last-child{display:block;max-width:120px}.sidebar-bottom{display:none}.workspace{padding:20px 16px 26px}.mode-row>span{font-size:8px;max-width:115px}.mode-control button{font-size:9px;padding:7px 9px}.step-heading{margin:22px 0 18px;align-items:flex-start}.step-heading h1{font-size:30px}.step-heading p{font-size:11px}.step-count{font-size:9px;margin-top:3px}.stage-instruction{padding:12px;gap:8px}.stage-instruction p{font-size:10px;min-width:230px}.stage-instruction button{width:100%;margin:5px 0 0}.hotspot{min-height:16px;min-width:18px;border-width:1.5px}.hotspot-number{width:19px;height:19px;top:-10px;left:-10px;font-size:8px}.step-footer{gap:12px}.step-footer>span{font-size:9px;max-width:180px}.step-footer>.primary{min-width:100px;font-size:10px;padding:10px 12px}.action-dialog{padding:20px}.action-dialog h2{font-size:26px}.field-list{grid-template-columns:1fr}.dialog-footer>.primary{font-size:11px;padding:11px 13px}.contract{gap:12px 8px}}
:root .screen{width:min(100%,calc(47vh * var(--ratio,1.8)));max-height:none;margin:0 auto;overflow:hidden}
.accept-action{border-color:var(--gold);color:var(--gold);box-shadow:0 0 14px #ffdf4714}
@media(max-width:760px){:root .screen{width:100%}}
@media(max-width:760px){.sidebar .sidebar-bottom{display:flex;align-items:center;gap:12px;padding:5px 5px 0}.sidebar-bottom .progress-label{flex:1;gap:12px}.sidebar-bottom .progress-track{display:none}.sidebar-bottom .text-button{font-size:9px;padding:4px 0}}
.caption-intro{font-size:12px;color:#c9d2de;margin-top:20px;line-height:1.7}
.caption-card{border:1px solid #465167;border-radius:8px;margin-top:18px;padding:20px 22px;background:#171f2f}
.caption-heading{display:flex;align-items:center;gap:12px;margin-bottom:15px}
.caption-heading h2{font-size:18px;letter-spacing:-.02em;margin-top:5px}
.caption-heading .eyebrow{font-size:8px;letter-spacing:.14em}
.caption-symbol{width:33px;height:33px;border:1px solid #635932;display:flex;align-items:center;justify-content:center;border-radius:7px;background:#ffdf4708;color:var(--gold);font-size:24px;line-height:1}
.caption-steps{list-style:none;counter-reset:caption;display:grid;gap:11px;padding:0;margin:0}
.caption-steps li{counter-increment:caption;display:flex;align-items:flex-start;gap:12px;color:#e2e8f0;font-size:13px;line-height:1.65}
.caption-steps li::before{content:counter(caption);flex-shrink:0;width:22px;height:22px;margin-top:1px;border:1px solid #4b566b;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:10px;color:#becada;font-variant-numeric:tabular-nums}
.caption-check{display:flex;align-items:baseline;gap:12px;padding-top:14px;margin-top:17px;border-top:1px solid #354155}
.caption-check>span{font-size:9px;font-weight:700;letter-spacing:.1em;color:var(--gold);flex-shrink:0}
.caption-check p{font-size:12px;line-height:1.6;color:#bfcbdc}
@media(max-width:760px){.caption-card{padding:17px 15px}.caption-steps li{font-size:12px;gap:10px}.caption-check{gap:10px}.caption-check p{font-size:11px}.caption-intro{font-size:11px}}