*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--fg-1);font-family:var(--font-ui);-webkit-font-smoothing:antialiased}img,svg{display:block}a{color:inherit;text-decoration:none}button{font-family:inherit}::selection{background:var(--brand-soft);color:var(--brand-soft-fg)}*{scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--border-strong);border:3px solid var(--bg);border-radius:99px}::-webkit-scrollbar-thumb:hover{background:var(--fg-muted)}.app{min-height:100vh;display:flex}.sidebar{background:var(--surface);border-right:1px solid var(--border);z-index:40;flex-direction:column;flex:none;width:268px;height:100vh;display:flex;position:sticky;top:0}.sb-brand{align-items:center;gap:11px;padding:22px 22px 18px;display:flex}.sb-brand .mark{width:30px;height:30px}.sb-brand b{font-family:var(--font-display);letter-spacing:-.02em;color:var(--fg-1);font-size:21px;font-weight:600}.sb-nav{flex-direction:column;flex:1;gap:3px;padding:6px 14px;display:flex;overflow-y:auto}.sb-section{letter-spacing:.07em;text-transform:uppercase;color:var(--fg-muted);padding:16px 12px 7px;font-size:11px;font-weight:700}.nav-item{border-radius:var(--radius-md);cursor:pointer;width:100%;height:44px;color:var(--fg-2);font:var(--weight-semibold) 14.5px var(--font-ui);text-align:left;background:0 0;border:0;align-items:center;gap:12px;padding:0 12px;transition:background .15s,color .15s;display:flex;position:relative}.nav-item svg{flex:none;width:20px;height:20px}.nav-item:hover{background:var(--surface-2);color:var(--fg-1)}.nav-item.on{background:var(--brand-soft);color:var(--brand-soft-fg)}.nav-item.on:before{content:"";background:var(--brand);border-radius:0 3px 3px 0;width:3px;position:absolute;top:11px;bottom:11px;left:-14px}.nav-item .badge{background:var(--attn-soft);color:var(--attn-fg);border-radius:99px;margin-left:auto;padding:2px 8px;font-size:11px;font-weight:700}.sb-foot{border-top:1px solid var(--border);flex-direction:column;gap:12px;padding:14px;display:flex}.sb-foot-row{align-items:center;gap:8px;display:flex}.sb-foot-row .profile-row{flex:1;min-width:0}.sb-foot-row .theme-toggle{flex:none}.upsell{border-radius:var(--radius-lg);background:var(--brand-soft);border:1px solid var(--brand-border);padding:15px}.upsell h5{color:var(--brand-soft-fg);align-items:center;gap:7px;margin:0;font-size:13.5px;display:flex}.upsell h5 svg{width:16px;height:16px}.upsell p{color:var(--fg-2);margin:6px 0 11px;font-size:12.5px;line-height:1.45}.profile-row{border-radius:var(--radius-md);cursor:pointer;text-align:left;background:0 0;border:0;align-items:center;gap:11px;width:100%;padding:7px;transition:background .15s;display:flex}.profile-row:hover{background:var(--surface-2)}.profile-row .nm{color:var(--fg-1);font-size:13.5px;font-weight:600;line-height:1.2}.profile-row .em{color:var(--fg-3);font-size:11.5px}.profile-row .gear{color:var(--fg-muted);margin-left:auto}.profile-row .gear svg{width:17px;height:17px}.main{flex-direction:column;flex:1;min-width:0;display:flex}.topbar{z-index:30;background:color-mix(in srgb, var(--bg) 86%, transparent);-webkit-backdrop-filter:saturate(1.3)blur(12px);border-bottom:1px solid var(--border);align-items:center;gap:16px;min-height:76px;padding:16px 32px;display:flex;position:sticky;top:0}.topbar .tt{min-width:0}.topbar .tt h1{font-family:var(--font-display);letter-spacing:-.02em;color:var(--fg-1);margin:0;font-size:23px;font-weight:600}.topbar .tt p{color:var(--fg-3);margin:2px 0 0;font-size:13.5px}.topbar .actions{align-items:center;gap:10px;margin-left:auto;display:flex}.menu-btn,.mobile-brand{display:none}.page{flex:1;width:100%;max-width:1180px;margin:0 auto;padding:28px 32px 56px}.page.reading-page{max-width:1180px}.btn{border-radius:var(--radius-md);height:44px;font:var(--weight-semibold) 14.5px var(--font-ui);cursor:pointer;white-space:nowrap;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:0 18px;transition:background .15s,transform 80ms,border-color .15s,color .15s,box-shadow .15s;display:inline-flex}.btn:active{transform:scale(.985)}.btn svg{width:18px;height:18px}.btn-primary{background:var(--primary);color:var(--fg-on-primary)}.btn-primary:hover{background:var(--primary-hover)}.btn-ink{background:var(--ink);color:var(--fg-on-ink)}.btn-ink:hover{background:var(--ink-hover)}.btn-secondary{background:var(--surface);color:var(--fg-1);border-color:var(--border-strong)}.btn-secondary:hover{background:var(--surface-2)}.btn-ghost{color:var(--fg-2);background:0 0}.btn-ghost:hover{background:var(--surface-2);color:var(--fg-1)}.btn-soft{background:var(--brand-soft);color:var(--brand-soft-fg)}.btn-soft:hover{background:var(--brand-border)}.btn-block{width:100%}.btn-lg{height:50px;padding:0 22px;font-size:15.5px}.btn-sm{height:38px;padding:0 14px;font-size:13.5px}.btn[disabled]{background:var(--neutral-soft);color:var(--fg-muted);cursor:not-allowed;border-color:#0000;transform:none}.btn-danger{background:var(--incorrect-soft);color:var(--incorrect-fg);border-color:var(--incorrect-border)}.btn-danger:hover{background:var(--incorrect);color:#fff}.icon-btn{border-radius:var(--radius-md);border:1px solid var(--border);background:var(--surface);width:42px;height:42px;color:var(--fg-2);cursor:pointer;flex:none;place-items:center;transition:background .15s,color .15s,border-color .15s;display:grid}.icon-btn:hover{background:var(--surface-2);color:var(--fg-1)}.icon-btn svg{width:19px;height:19px}.theme-toggle .moon,[data-theme=dark] .theme-toggle .sun{display:none}[data-theme=dark] .theme-toggle .moon{display:block}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:20px}.card-pad-lg{padding:24px}.card-flat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px}.card-raised{box-shadow:var(--shadow-lg)}.card-link{cursor:pointer;text-align:left;transition:transform .16s,box-shadow .16s,border-color .16s}.card-link:hover{box-shadow:var(--shadow-md);border-color:var(--brand-border);transform:translateY(-2px)}.card-head{align-items:center;gap:12px;margin-bottom:16px;display:flex}.card-head h3{margin:0;font-size:16px}.card-head .sub{color:var(--fg-3);margin-top:1px;font-size:12.5px}.card-head .right{align-items:center;gap:8px;margin-left:auto;display:flex}.link-more{color:var(--brand-fg);cursor:pointer;align-items:center;gap:4px;font-size:13px;font-weight:600;display:inline-flex}.link-more svg{width:15px;height:15px}.eyebrow{letter-spacing:.07em;text-transform:uppercase;color:var(--fg-3);font-size:11.5px;font-weight:700}.sec-title{align-items:center;gap:12px;margin:4px 0 16px;display:flex}.sec-title h2{font-family:var(--font-display);letter-spacing:-.01em;margin:0;font-size:18px;font-weight:600}.sec-title .right{margin-left:auto}.tag{border-radius:var(--radius-pill);white-space:nowrap;align-items:center;gap:6px;padding:5px 11px;font-size:12px;font-weight:600;display:inline-flex}.tag svg{width:14px;height:14px}.tag-brand{background:var(--brand-soft);color:var(--brand-soft-fg)}.tag-attn{background:var(--attn-soft);color:var(--attn-fg)}.tag-neutral{background:var(--neutral-soft);color:var(--fg-2)}.tag-correct{background:var(--correct-soft);color:var(--correct-fg)}.tag-incorrect{background:var(--incorrect-soft);color:var(--incorrect-fg)}.tag-outline{border:1px solid var(--border-strong);color:var(--fg-2);background:0 0}.progress{border-radius:var(--radius-pill);background:var(--neutral-soft);height:8px;overflow:hidden}.progress>i{background:var(--brand);border-radius:inherit;height:100%;transition:width .5s cubic-bezier(.22,.61,.36,1);display:block}.progress.thin{height:6px}.progress.thick{height:11px}.seg{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-pill);gap:3px;padding:3px;display:inline-flex}.seg button{border-radius:var(--radius-pill);height:34px;font:var(--weight-semibold) 13px var(--font-ui);color:var(--fg-3);cursor:pointer;background:0 0;border:0;padding:0 16px;transition:background .15s,color .15s}.seg button:hover{color:var(--fg-1)}.seg button.on{background:var(--surface);color:var(--fg-1);box-shadow:var(--shadow-sm)}.avatar{color:#fff;font-weight:700;font-family:var(--font-ui);border-radius:50%;flex:none;place-items:center;display:grid;overflow:hidden}.avatar img{object-fit:cover;width:100%;height:100%}.field{flex-direction:column;gap:7px;display:flex}.field label{color:var(--fg-2);font-size:13px;font-weight:600}.input,.textarea,.select{border-radius:var(--radius-md);border:1px solid var(--border-strong);background:var(--surface);width:100%;color:var(--fg-1);font:15px var(--font-ui);transition:border-color .15s,box-shadow .15s}.input{height:46px;padding:0 14px}.textarea{resize:vertical;padding:12px 14px;line-height:1.55}.input:focus,.textarea:focus,.select:focus{border-color:var(--brand);box-shadow:var(--shadow-focus);outline:none}.input::placeholder,.textarea::placeholder{color:var(--fg-muted)}.input-icon{position:relative}.input-icon svg{width:19px;height:19px;color:var(--fg-muted);position:absolute;top:50%;left:14px;transform:translateY(-50%)}.input-icon .input{padding-left:44px}.switch{cursor:pointer;flex:none;width:46px;height:27px;position:relative}.switch input{opacity:0;width:0;height:0;position:absolute}.switch .track{background:var(--neutral-soft);border:1px solid var(--border-strong);border-radius:99px;transition:background .18s,border-color .18s;position:absolute;inset:0}.switch .knob{background:var(--surface);width:19px;height:19px;box-shadow:var(--shadow-sm);border-radius:50%;transition:transform .18s;position:absolute;top:3px;left:3px}.switch input:checked+.track{background:var(--primary);border-color:var(--primary)}.switch input:checked~.knob{transform:translate(19px)}.ring{border-radius:50%;flex:none;place-items:center;display:grid;position:relative}.ring .hole{background:var(--surface);text-align:center;border-radius:50%;place-items:center;display:grid}.ring .hole .n{font-family:var(--font-ui);font-variant-numeric:tabular-nums;color:var(--fg-1);letter-spacing:-.02em;font-weight:800;line-height:1}.ring .hole .l{color:var(--fg-3);margin-top:3px;font-size:10.5px;font-weight:600}.stat .v{font-family:var(--font-ui);font-variant-numeric:tabular-nums;letter-spacing:-.02em;color:var(--fg-1);font-size:30px;font-weight:800;line-height:1}.stat .k{color:var(--fg-3);margin-top:6px;font-size:12.5px}.stat .v.pos{color:var(--correct-fg)}.delta{font-variant-numeric:tabular-nums;align-items:center;gap:3px;font-size:12.5px;font-weight:700;display:inline-flex}.delta svg{width:14px;height:14px}.delta.up{color:var(--correct-fg)}.delta.down{color:var(--incorrect-fg)}.lrow{border-bottom:1px solid var(--divider);align-items:center;gap:13px;padding:13px 0;display:flex}.lrow:last-child{border-bottom:0}.lrow .ic{border-radius:var(--radius-md);background:var(--brand-soft);width:42px;height:42px;color:var(--brand-soft-fg);flex:none;place-items:center;display:grid}.lrow .ic svg{width:21px;height:21px}.lrow .tx{flex:1;min-width:0}.lrow .tx .t{color:var(--fg-1);font-size:14.5px;font-weight:600;display:block}.lrow .tx .s{color:var(--fg-3);margin-top:1px;font-size:12.5px;display:block}.lrow .go{color:var(--fg-muted);flex:none}.lrow .go svg{width:18px;height:18px}.lrow.clickable{appearance:none;width:calc(100% + 20px);color:inherit;font:inherit;text-align:left;cursor:pointer;border-radius:var(--radius-md);background:0 0;border:0;margin:0 -10px;padding:13px 10px;transition:background .14s}.lrow.clickable:hover{background:var(--surface-2)}.hr{background:var(--divider);border:0;height:1px;margin:18px 0}.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}.scrim{display:none}@media (max-width:1024px){.sidebar{box-shadow:var(--shadow-lg);transition:transform .24s cubic-bezier(.22,.61,.36,1);position:fixed;top:0;left:0;transform:translate(-100%)}.app.nav-open .sidebar{transform:none}.app.nav-open .scrim{z-index:35;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#07112a6b;display:block;position:fixed;inset:0}.menu-btn{display:grid}.mobile-brand{align-items:center;gap:9px;display:flex}.mobile-brand svg,.mobile-brand img{width:26px;height:26px}.mobile-brand b{font-family:var(--font-display);color:var(--fg-1);letter-spacing:-.02em;font-size:18px;font-weight:600}.topbar .tt{display:none}.topbar.has-title .tt{display:block}}@media (max-width:720px){.topbar{min-height:64px;padding:12px 18px}.page{padding:20px 18px 80px}}@media (prefers-reduced-motion:reduce){*{transition-duration:.01ms!important;animation-duration:.01ms!important}}
