:root{color-scheme:dark;--bg:#101a24;--panel:#172632;--ink:#edf1e8;--muted:#b2c0c6;--line:#354854;--mint:#b6e6cc;--gold:#edcf91;font-family:system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 90% 0,#203e43,transparent 45%),var(--bg);color:var(--ink);line-height:1.65}a{color:var(--mint)}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:44px;padding:.65rem 1rem;border:1px solid #789b92;border-radius:8px;background:transparent;color:var(--mint);font:inherit;font-weight:650;text-decoration:none;cursor:pointer}button:hover,.button:hover{background:#28423f}button:disabled{opacity:.55;cursor:not-allowed}.primary{background:var(--mint);color:#142e27}.primary:hover{background:#d0f0df;color:#142e27}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--gold);outline-offset:4px}header,footer{max-width:1200px;margin:auto;padding:1.5rem 2rem;display:flex;justify-content:space-between;gap:1rem;align-items:center;border-bottom:1px solid var(--line)}header a{text-decoration:none}nav{display:flex;gap:1.3rem;flex-wrap:wrap}.brand{font-size:1rem;letter-spacing:.1em;font-weight:750}.brand small{display:block;font-size:.65rem;letter-spacing:.24em;color:var(--muted)}main{max-width:1120px;padding:0 2rem;margin:auto}.hero{display:grid;grid-template-columns:1.3fr 1fr;gap:4rem;align-items:center;padding:4rem 0 3rem}.hero p{max-width:45ch}h1{font-family:Georgia,serif;font-size:clamp(2.5rem,5.5vw,4.5rem);line-height:1.1;letter-spacing:-.04em;margin:.8rem 0 1.5rem}h1 em{color:var(--mint);font-weight:400}h2{font-family:Georgia,serif;font-size:clamp(1.5rem,3vw,2rem);line-height:1.25;margin:.5rem 0 1rem}h3{font-size:1.2rem;line-height:1.4}.eyebrow{font-size:.7rem;letter-spacing:.18em;font-weight:750;color:var(--gold)}p{color:var(--muted)}.journey{padding:1.6rem;border:1px solid var(--line);border-radius:18px;background:#172b32}.journey li{padding:.4rem 0}.journey ol{padding-left:1.4rem}.stats{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--line);padding:1.4rem 0;gap:1rem}.stats strong{display:block;color:var(--mint);font-size:2rem}.stats span{font-size:.8rem;color:var(--muted)}.badges{display:flex;gap:.6rem;flex-wrap:wrap}.badge{border:1px solid #8aa995;border-radius:999px;padding:.3rem .8rem;font-size:.8rem;color:var(--mint)}section{scroll-margin-top:1rem}main>section:not(.hero):not(.stats){margin:3rem 0}.section-heading{display:flex;gap:2rem;align-items:end;justify-content:space-between;margin-bottom:1rem}.section-heading>p{font-size:.85rem}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,270px),1fr));gap:1rem}.cards article{padding:1.5rem;background:var(--panel);border:1px solid var(--line);border-radius:14px}.cards article.completed{border-color:#8ab49b}.cards article p{font-size:.9rem}.state{color:var(--gold);font-weight:650}.requirements{padding-left:1.1rem;color:var(--muted);font-size:.85rem}.lesson-panel{padding:2rem;background:#1b3037;border:1px solid #96c0ab;border-radius:14px}.lesson-panel>button:first-child{float:right}fieldset{border:1px solid #637d83;border-radius:10px;margin:1.5rem 0;padding:1rem}legend{padding:0 .5rem;font-weight:650}label{display:flex;gap:.7rem;align-items:start;padding:.65rem;border-radius:6px;cursor:pointer}label:hover{background:#263f46}input[type=radio]{margin-top:.4rem;accent-color:var(--mint);width:18px;height:18px;flex-shrink:0}.review{border-left:3px solid var(--gold);padding-left:1rem;margin:1rem 0}.note{border-top:1px solid var(--line);padding-top:2rem}footer{border-top:1px solid var(--line);border-bottom:0;font-size:.85rem}#save-note{font-size:.85rem}#quiz-feedback{margin:1rem 0}[hidden]{display:none!important}@media(max-width:650px){header,footer{padding:1rem;align-items:start;flex-direction:column}main{padding:0 1rem}.hero{grid-template-columns:1fr;gap:1.5rem;padding:2rem 0}.hero h1{font-size:2.8rem}.section-heading{display:block}.stats strong{font-size:1.5rem}.stats span{font-size:.7rem}.lesson-panel{padding:1rem}.lesson-panel>button:first-child{float:none}nav{gap:1rem}}
.next-step,.progress-tools{padding:1.5rem;border:1px solid var(--line);border-radius:14px;background:#172b32}.transfer-actions{display:flex;flex-wrap:wrap;gap:1rem;align-items:start}.transfer-actions label{display:flex;flex-direction:column;align-items:start;padding:0}.transfer-actions label:hover{background:transparent}.transfer-actions input{max-width:100%;padding:.5rem 0;min-height:44px}#restore-preview{margin-top:1rem;padding:1rem;border:1px solid var(--gold);border-radius:10px}#restore-preview button{margin:.4rem .4rem .4rem 0}#transfer-status,#restore-file{overflow-wrap:anywhere}@media(max-width:650px){.next-step,.progress-tools{padding:1rem}.transfer-actions{display:block}.transfer-actions label{margin-top:1rem}}
.ai-setup{padding:1.5rem;border:1px solid #608f86;border-radius:14px;background:linear-gradient(135deg,#183238,#172b32)}.ai-setup .section-heading{align-items:center}.setup-badge{border:1px solid var(--line);border-radius:999px;padding:.25rem .7rem;color:var(--muted);font-size:.8rem}.setup-badge[data-state=ok]{border-color:#8ab49b;color:var(--mint)}.setup-badge[data-state=error]{border-color:#d89b8b;color:#ffd0c4}.setup-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;align-items:start}.setup-steps{margin:0;padding-left:1.3rem}.setup-steps li{padding:.35rem 0 .65rem}.setup-steps span{display:block;color:var(--muted);font-size:.9rem}.setup-card{padding:1rem;border:1px solid var(--line);border-radius:10px;background:#101f28}.setup-card label{display:block;padding:.25rem 0;color:var(--ink)}.setup-card input,.setup-card select{width:100%;min-height:44px;padding:.55rem .7rem;margin:.35rem 0 .8rem;border:1px solid #60777d;border-radius:7px;background:#0d1920;color:var(--ink);font:inherit}.setup-actions{display:flex;flex-wrap:wrap;gap:.5rem}.setup-card p{font-size:.85rem}.setup-footnote{margin-bottom:0}.ai-setup code{color:var(--gold)}#ai-setup-status[data-state=ok]{color:var(--mint)}#ai-setup-status[data-state=error]{color:#ffd0c4}@media(max-width:650px){.ai-setup{padding:1rem}.setup-grid{grid-template-columns:1fr;gap:1rem}.ai-setup .section-heading{display:flex}.setup-actions button{flex:1}}
.signal-bonus{display:flex;justify-content:space-between;gap:1rem;align-items:center;margin:1rem 0;padding:1rem 1.25rem;border:1px solid #608f86;border-radius:14px;background:linear-gradient(110deg,#142e32,#172b32)}.signal-bonus h2{margin:.1rem 0 .35rem;color:var(--mint);font-size:1.35rem}.signal-bonus p{margin:.15rem 0;font-size:.85rem}.bonus-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:50%;border:1px solid var(--gold);color:var(--gold);font-size:1.5rem;flex:0 0 auto}@media(max-width:650px){.signal-bonus{align-items:flex-start;padding:1rem}.bonus-icon{width:40px;height:40px;font-size:1.2rem}}

.campaign-card-grid{grid-template-columns:minmax(0,1fr);margin:2rem 0}
.campaign-card{max-width:920px;margin:auto;padding:clamp(1.5rem,4vw,3rem)}
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.campaign-modes span{padding:1rem;border:1px solid var(--line);border-radius:10px;background:var(--panel)}
.campaign-modes strong{display:block;color:var(--gold);font-size:.72rem;letter-spacing:.12em}
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.extension-guide{margin-top:2rem}.extension-guide details{border-top:1px solid var(--line);padding:1rem 0}.extension-guide summary{cursor:pointer;font-weight:650}.extension-guide li{margin:.7rem 0;color:var(--muted)}.extension-guide pre{overflow:auto;max-width:100%;padding:1rem;background:#0d1920;border-radius:8px}.extension-guide p{overflow-wrap:anywhere}.extension-guide a{display:inline-block}.extension-guide h3{font-size:1.4rem}