:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--setup-surface:#faf9fc;--setup-input-border:#cbc8d0;--setup-placeholder:#9a94a2;--setup-error-bg:#fff0f0;--setup-error-text:#a32121;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--setup-surface:#1b1c22;--setup-input-border:#50525d;--setup-placeholder:#777b88;--setup-error-bg:#3a2024;--setup-error-text:#ffb4b4;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}#root{text-align:center;border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}body{margin:0}button,input:not([type=checkbox]):not([type=radio]),select,textarea{box-sizing:border-box;min-height:44px;font:inherit}textarea{min-height:96px}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:2px}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}.setup-page{background:radial-gradient(circle at 8% 12%, #aa3bff17, transparent 28%), radial-gradient(circle at 92% 88%, #4c6ef517, transparent 30%), var(--setup-surface);text-align:left;flex:1;padding:8px 32px 64px}.setup-intro{text-align:center;max-width:720px;margin:0 auto 24px}.setup-intro h2{margin:8px 0 10px;font-size:32px}.setup-intro>p:last-child{color:var(--text)}.setup-kicker{color:var(--accent);letter-spacing:.08em;font-size:14px;font-weight:700}.setup-form{border:1px solid var(--border);background:var(--bg);max-width:860px;box-shadow:var(--shadow);border-radius:24px;margin:0 auto;padding:30px}.setup-account-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.setup-account-card{border:1px solid var(--border);background:#f4f3ec59;border-radius:16px;gap:16px;min-width:0;margin:0;padding:22px;display:grid}.setup-account-card legend{color:var(--text-h);padding:0 8px;font-size:18px;font-weight:700}.setup-account-card legend span{background:var(--accent-bg);width:28px;height:28px;color:var(--accent);border-radius:50%;place-items:center;margin-right:8px;font-size:14px;display:inline-grid}.setup-account-card label{color:var(--text-h);gap:7px;font-size:15px;font-weight:600;display:grid}.setup-account-card input{border:1px solid var(--setup-input-border);background:var(--bg);width:100%;color:var(--text-h);border-radius:10px;padding:10px 12px;font-weight:400}.setup-account-card input::placeholder{color:var(--setup-placeholder)}.setup-account-card input:hover{border-color:var(--accent-border)}.setup-account-card input:focus{border-color:var(--accent)}.setup-password-help{color:var(--text);margin:16px 2px 0;font-size:14px}.setup-password-help:before{content:"✓";color:#17824b;margin-right:7px;font-weight:800}.setup-error{background:var(--setup-error-bg);color:var(--setup-error-text);border-radius:10px;margin-top:14px;padding:10px 12px;font-size:14px}.setup-submit{color:#fff;cursor:pointer;background:linear-gradient(135deg,#8b2de2,#5f55e8);border:0;border-radius:12px;width:100%;margin-top:18px;font-weight:700;box-shadow:0 8px 20px #7537de38}.setup-submit:hover{filter:brightness(1.06)}@media (width<=720px){.setup-page{padding:4px 16px 40px}.setup-intro h2{font-size:26px}.setup-form{border-radius:18px;padding:18px}.setup-account-grid{grid-template-columns:1fr}.setup-account-card{padding:18px}}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}.study-shell{box-sizing:border-box;text-align:left;flex:1;width:100%}.child-shell{grid-template-rows:auto 1fr;grid-template-columns:minmax(170px,220px) minmax(0,1fr) minmax(240px,320px);min-height:70svh;display:grid}.parent-shell{grid-template-columns:minmax(150px,220px) minmax(0,760px);justify-content:center;min-height:70svh;display:grid}.shell-account{border-block:1px solid var(--border);background:var(--social-bg);grid-column:1/-1;justify-content:space-between;align-items:center;gap:16px;padding:14px 20px;display:flex}.shell-navigation{border-right:1px solid var(--border);flex-direction:column;gap:6px;padding:18px 14px;display:flex}.shell-navigation a,.shell-navigation button{box-sizing:border-box;width:100%;min-height:44px;color:var(--text-h);font:inherit;text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:8px;padding:10px 12px;text-decoration:none}.shell-navigation a[aria-current=page]{color:var(--accent);background:var(--accent-bg);border-color:var(--accent-border)}.shell-navigation a:hover,.shell-navigation button:hover{background:var(--social-bg)}.shell-navigation a:focus-visible,.shell-navigation button:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.shell-navigation button{margin-top:auto}.shell-content{min-width:0;padding:24px}.coach-panel{border-left:1px solid var(--border);background:var(--social-bg);padding:24px 20px}.coach-panel h2{margin-bottom:12px}.page-card{border:1px solid var(--border);background:var(--bg);border-radius:14px;max-width:720px;padding:24px}.page-card h2,.page-card h3{margin-top:0}.page-card p+p,.page-card section{margin-top:16px}@media (width<=900px){.child-shell{grid-template-columns:minmax(160px,200px) minmax(0,1fr)}.coach-panel{border-top:1px solid var(--border);border-left:0;grid-column:2}}@media (width<=640px){.child-shell,.parent-shell{flex-direction:column;display:flex}.shell-navigation{z-index:2;border-right:0;border-bottom:1px solid var(--border);background:var(--bg);flex-direction:row;position:sticky;bottom:0;overflow-x:auto}.shell-navigation a,.shell-navigation button{white-space:nowrap;flex:none;width:auto}.shell-navigation button{margin-top:0}.shell-content,.coach-panel{padding:18px 16px}.coach-panel{display:none}}