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svg{width:17px;height:17px}button:disabled{opacity:.32;cursor:not-allowed;transform:none!important}.onboarding-shell{min-height:100vh;display:grid;place-items:center;padding:40px 24px;background:radial-gradient(circle at 15% 15%,color-mix(in srgb,var(--accent) 11%,transparent),transparent 32%),linear-gradient(135deg,#08090b,#111318 60%,#090a0c)}.onboarding-brand{position:absolute;top:28px;left:32px;color:var(--accent);font-family:var(--font-mono);font-size:.76rem;letter-spacing:.08em}.onboarding-card{width:min(760px,100%);padding:58px;border:1px solid var(--border-strong);border-radius:22px;background:#101216eb;box-shadow:0 36px 100px #00000059}.onboarding-card h1{margin:18px 0 0;font-family:var(--font-display);font-size:clamp(2.6rem,7vw,4.7rem);font-weight:600;line-height:1.08;letter-spacing:-.03em}.onboarding-intro{max-width:650px;margin:24px 0 0;color:var(--text-2);font-size:1.08rem;line-height:1.9}.goal-picker{display:grid;gap:10px;margin:36px 0 28px;padding:0;border:0}.goal-picker legend{margin-bottom:12px;color:var(--text);font-weight:700}.goal-card{width:100%;display:grid;grid-template-columns:38px 1fr;gap:14px;align-items:center;padding:17px 18px;border:1px solid var(--border);border-radius:10px;background:var(--surface);text-align:left;cursor:pointer}.goal-card:hover{border-color:var(--border-strong);background:var(--surface-2)}.goal-card.is-selected{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 7%,var(--surface))}.goal-card svg{width:24px;color:var(--accent)}.goal-card span{display:grid;gap:3px}.goal-card strong{font-size:1rem}.goal-card small{color:var(--text-3);font-size:.87rem}.onboarding-card>.primary-action{width:100%;min-height:52px}.privacy-note{margin:13px 0 0;color:var(--text-3);font-size:.78rem;text-align:center}.learning-app{min-height:100vh;display:grid;grid-template-columns:300px minmax(0,1fr)}.course-sidebar{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:24px;padding:24px 20px;border-right:1px solid var(--border);background:#0b0c0f;overflow-y:auto}.course-brand{display:flex;gap:12px;align-items:center;padding-bottom:20px;border-bottom:1px solid var(--border)}.course-brand>span{width:44px;height:44px;display:grid;place-items:center;flex:0 0 auto;border:1px solid var(--accent);color:var(--accent);font-family:var(--font-mono);font-size:.7rem}.course-brand div{display:grid}.course-brand strong{font-size:.94rem}.course-brand small{color:var(--text-3);font-size:.75rem}.primary-nav{display:grid;gap:6px}.primary-nav button{display:flex;align-items:center;gap:10px;padding:11px 12px;border:0;border-radius:7px;background:transparent;color:var(--text-3);text-align:left;cursor:pointer}.primary-nav button:hover{color:var(--text);background:var(--surface)}.primary-nav button.is-active{color:var(--text);background:var(--surface-2)}.primary-nav svg{width:17px}.stage-block,.lesson-list-block{display:grid;gap:10px}.stage-nav,.lesson-list{display:grid;gap:3px}.stage-nav button{display:grid;grid-template-columns:26px 1fr auto;gap:8px;align-items:center;padding:9px 10px;border:0;border-left:2px solid transparent;background:transparent;color:var(--text-3);text-align:left;cursor:pointer}.stage-nav button:hover,.stage-nav button.is-current{color:var(--text);background:var(--surface)}.stage-nav button.is-current{border-left-color:var(--accent)}.stage-nav span,.stage-nav small{font-family:var(--font-mono);font-size:.66rem}.stage-nav strong{font-size:.84rem;font-weight:600}.lesson-list{max-height:290px;overflow-y:auto}.lesson-list button{display:grid;grid-template-columns:25px 1fr 15px;gap:8px;align-items:start;padding:9px 8px;border:0;border-radius:6px;background:transparent;color:var(--text-3);text-align:left;cursor:pointer}.lesson-list button:hover,.lesson-list button.is-current{color:var(--text);background:var(--surface)}.lesson-list span{color:var(--accent);font-family:var(--font-mono);font-size:.65rem}.lesson-list strong{font-size:.8rem;font-weight:500;line-height:1.45}.lesson-list svg{width:14px}.lesson-player,.profile-page{min-width:0;width:min(1240px,100%);margin:0 auto;padding:46px 56px 70px}.player-header{padding-bottom:30px;border-bottom:1px solid var(--border)}.lesson-meta-row{display:flex;flex-wrap:wrap;gap:9px}.lesson-meta-row span{display:inline-flex;align-items:center;gap:5px;padding:6px 9px;border:1px solid var(--border);border-radius:999px;color:var(--text-3)}.lesson-meta-row svg{width:13px}.lesson-meta-row .completed-label{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 45%,transparent)}.player-title-row{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:end;margin-top:28px}.player-title-row h1{max-width:900px;margin:0;font-family:var(--font-display);font-size:clamp(2.5rem,5vw,4.7rem);font-weight:600;line-height:1.08;letter-spacing:-.03em}.player-title-row p{max-width:760px;margin:18px 0 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0;font-family:var(--font-display);font-size:clamp(2.7rem,5vw,4.6rem);line-height:1.12}.profile-header>p:last-child{max-width:760px;margin:20px 0 0;color:var(--text-2)}.profile-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.profile-stats article{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:5px 13px;padding:22px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.profile-stats svg{grid-row:1 / 3;width:24px;color:var(--accent)}.profile-stats strong{font-size:1.7rem;line-height:1}.profile-stats span{color:var(--text-3);font-size:.8rem}.profile-section{margin-top:42px;padding-top:38px;border-top:1px solid var(--border)}.rule-editor-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.rule-editor-grid label{display:grid;color:var(--text-2);font-weight:600}.rule-editor-grid textarea{min-height:145px;font-weight:400}.profile-terms{display:flex;flex-wrap:wrap;gap:8px}.profile-terms span{padding:8px 13px;border:1px 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var(--border)}.featured-example{grid-template-columns:1fr}.example-image-wrap{min-height:360px}}@media(max-width:820px){.learning-app{display:block}.course-sidebar{position:static;width:100%;height:auto;gap:12px;padding:14px 16px;border-right:0;border-bottom:1px solid var(--border);overflow:visible}.course-brand{padding-bottom:12px}.course-brand>span{width:36px;height:36px}.course-brand small{display:none}.primary-nav{grid-template-columns:1fr 1fr}.primary-nav button{justify-content:center;padding:8px}.stage-block{gap:6px}.stage-nav{display:flex;gap:6px;overflow-x:auto;padding-bottom:3px}.stage-nav button{min-width:max-content;grid-template-columns:20px 1fr auto;border-left:0;border-bottom:2px solid transparent;padding:7px 9px}.stage-nav button.is-current{border-bottom-color:var(--accent)}.stage-nav small,.lesson-list-block{display:none}.lesson-player,.profile-page{padding:28px 18px 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