:root{color:#17201b;background:#f7f2e8;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:linear-gradient(180deg,#ffffffb8,#fff0 260px),#f7f2e8}button{font:inherit}.app-shell{width:min(100%,980px);min-height:100vh;margin:0 auto;padding:max(18px,env(safe-area-inset-top)) 18px max(24px,env(safe-area-inset-bottom))}.topbar{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:20px}.kicker{margin:0 0 4px;font-size:.78rem;font-weight:800;text-transform:uppercase;color:#63736b}h1,h2,p{margin-top:0}h1{max-width:640px;margin-bottom:0;font-size:clamp(1.55rem,5vw,2.6rem);line-height:1.04;letter-spacing:0}.status-pill{display:inline-flex;align-items:center;gap:7px;min-height:34px;padding:0 11px;border:1px solid #d7d0c1;border-radius:999px;background:#fffaf0;color:#34443b;font-size:.82rem;font-weight:800;white-space:nowrap}.status-pill.offline{color:#8f3725}.status-pill.syncing svg{animation:spin 1s linear infinite}.onboarding{display:grid;gap:18px;margin-top:28px}.topic-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(136px,1fr));gap:10px}.topic-chip{min-height:50px;border:1px solid #d7d0c1;border-radius:8px;background:#fffdf8;color:#17201b;font-weight:800;cursor:pointer}.topic-chip.selected{border-color:#17201b;background:#f2c94c}.start-button,.text-button,.icon-button{border:0;cursor:pointer}.start-button{min-height:54px;border-radius:8px;background:#17201b;color:#fff;font-size:1rem;font-weight:900}.start-button:disabled{cursor:not-allowed;opacity:.45}.digest-layout{display:grid;grid-template-columns:190px minmax(0,1fr) 260px;gap:16px;align-items:start}.topic-rail{display:grid;gap:8px}.topic-tab{min-height:76px;padding:12px;border:1px solid #d8d0c2;border-radius:8px;background:transparent;color:#17201b;text-align:left;font-weight:900;cursor:pointer}.topic-tab span{display:block;margin-bottom:6px;color:#627267;font-size:.72rem;text-transform:uppercase}.topic-tab.active{background:#17201b;color:#fff}.topic-tab.active span{color:#f2c94c}.learning-card{min-height:610px;display:grid;align-content:start;gap:16px;padding:18px;border-radius:8px;background:#fffdf8;border:1px solid #ded7c9;box-shadow:0 18px 50px #17201b17}.card-head,.card-actions,.topic-meta,.graph-header{display:flex;align-items:center}.card-head,.topic-meta,.card-actions{justify-content:space-between}.visual-mark{width:58px;height:58px;display:grid;place-items:center;border-radius:8px;background:#36c2a3;color:#17201b;object-fit:cover}.icon-button{width:42px;height:42px;display:grid;place-items:center;border-radius:999px;background:#f0eadf;color:#17201b}.icon-button.active{background:#ee6c4d;color:#fff}.icon-button.primary{background:#17201b;color:#fff}.topic-meta{color:#65746b;font-size:.8rem;font-weight:900;text-transform:uppercase}.learning-card h2{margin-bottom:0;font-size:clamp(1.65rem,6vw,3rem);line-height:1.02;letter-spacing:0}.body-copy{margin-bottom:0;color:#34443b;font-size:1.02rem;line-height:1.58}.insight-band,.connection,.graph-preview{border-radius:8px;border:1px solid #ded7c9}.insight-band{display:grid;gap:8px;padding:14px;background:#f7f2e8}.insight-band strong{line-height:1.35}.insight-band p{margin-bottom:0;color:#44564c;line-height:1.45}.connection{display:flex;gap:10px;padding:13px;background:#e7f7f2}.connection p{margin-bottom:0;line-height:1.45}.card-actions{gap:9px;margin-top:4px}.text-button{min-height:42px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 14px;border-radius:999px;background:#f0eadf;color:#17201b;font-weight:900}.graph-preview{padding:14px;background:#fffdf8}.graph-header{gap:8px;margin-bottom:12px}.graph-header h2{margin-bottom:0;font-size:1rem}.graph-list{display:grid;gap:8px}.graph-row{display:grid;gap:3px;padding:10px;border-radius:8px;background:#f7f2e8;font-weight:800}.graph-row small{color:#66766c;font-weight:800}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:860px){.digest-layout{grid-template-columns:1fr}.topic-rail{display:flex;overflow-x:auto;padding-bottom:4px}.topic-tab{min-width:178px}.graph-preview{order:3}}@media(max-width:520px){.app-shell{padding-inline:12px}.topbar{align-items:stretch;flex-direction:column}.status-pill{align-self:flex-start}.learning-card{min-height:calc(100vh - 210px);padding:15px}.card-actions{display:grid;grid-template-columns:42px 1fr 1fr 42px}}