:root{--kb-bg:#121928;--kb-bar:#161d2c;--kb-card:#1a2133;--kb-card-2:#242b3a;--kb-pop:#20283a;--kb-input:#0d1322;--kb-line:#ffffff14;--kb-line-soft:#ffffff12;--kb-line-ctl:#ffffff4d;--kb-radius:18px;--kb-radius-md:12px;--kb-radius-sm:10px;--kb-gold:#d4b577;--kb-gold-2:#c8a96a;--kb-gold-3:#eace97;--kb-gold-4:#f5e4bd;--kb-gold-bg:#c8a96a24;--kb-ink:#121928;--kb-text:#fff;--kb-text-2:#e6e9f0;--kb-soft:#c9cedb;--kb-muted:#8b93a3;--kb-faint:#6b7385;--kb-ok:#6cc58f;--kb-ok-text:#8fd6a8;--kb-off:#6b7385;--kb-off-text:#aab2c2;--kb-wait:#d4b577;--kb-wait-text:#eace97;--kb-danger:#f0a3a3;--kb-danger-line:#f0a3a373;--kb-urgent:#e8836b;--kb-header-h:72px;--kb-mheader-h:56px;--kb-tabs-h:76px;--kb-bottom-offset:0px}.kb{background:var(--kb-bg);flex-direction:column;min-height:100dvh;display:flex}.kb-main{flex:1;width:100%;max-width:1280px;margin:0 auto;padding:40px 80px 64px}html:has(.kb--nav){scroll-padding-top:calc(var(--kb-header-h) + 16px)}html:has(.kb--nav .kb-quiz__nav){scroll-padding-bottom:104px}.kb-h1{letter-spacing:-.01em;overflow-wrap:anywhere;font-size:32px;font-weight:800;line-height:1.2}.kb-h1:focus{outline:none}.kb-h2{font-size:20px;font-weight:800;line-height:1.3}.kb-lead{color:var(--kb-muted);max-width:720px;margin-top:6px;font-size:15px;line-height:1.5}.kb-eyebrow{letter-spacing:.12em;text-transform:uppercase;color:var(--kb-gold-2);margin-bottom:8px;font-size:11px;font-weight:700;display:block}.kb-muted{color:var(--kb-muted)}.kb-soft{color:var(--kb-soft)}.kb-section{margin-top:24px}.kb-grid{grid-template-columns:1fr;gap:16px;margin-top:20px;display:grid}.kb-note{color:var(--kb-muted);font-size:13px;line-height:1.5}.kb-note a,.kb-link{color:var(--kb-gold-3);text-underline-offset:3px}.kb-note a:hover,.kb-link:hover{color:var(--kb-gold-4)}.kb-link--muted{color:var(--kb-soft)}.kb-link--btn{font:inherit;cursor:pointer;text-underline-offset:3px;background:0 0;border:0;padding:0;text-decoration:underline}.kb-sr{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.kb-ic{flex:none}.kb-live{color:#f6c9c9;margin:0;font-size:14px}.kb-live:not(:empty){border-radius:var(--radius-sm);background:#e07f7f1a;border:1px solid #e07f7f8c;margin-top:16px;padding:12px 16px}.kb-live .kb-btn{margin-left:12px}.kb-field-error{color:#f3b4b4;margin-top:8px;font-size:14px}.kb-slow{border-radius:var(--radius-sm);border:1px solid var(--line-gold);color:var(--text-soft);background:#b1935717;margin-top:12px;padding:12px 16px;font-size:14px}.kb-form{text-align:left;gap:16px;margin-top:20px;display:grid}.kb-form__claim{border-radius:var(--radius-sm);border-left:3px solid var(--kb-gold-2);color:var(--text-soft);background:#b1935717;padding:12px 14px;font-size:14px}.kb-form__login{color:var(--champagne);overflow-wrap:anywhere}.kb-form__note{color:var(--text-muted);font-size:13px;line-height:1.5}.kb-form__note a{color:var(--kb-gold-3);text-underline-offset:3px}.kb-form__error{color:#f6c9c9;margin:0;font-size:14px}.kb-form__error:not(:empty){border-radius:var(--radius-sm);background:#e07f7f1a;border:1px solid #e07f7f8c;padding:12px 14px}.kb-form__ok{color:var(--text-soft);margin:0;font-size:14px}.kb-form__ok:not(:empty){border-radius:var(--radius-sm);border:1px solid var(--line-gold);background:#b1935717;padding:12px 14px}.kb-form__actions{flex-direction:column;gap:10px;display:flex}.kb-form__actions--row{flex-flow:wrap;align-items:center;gap:10px 16px}.kb-form__links{color:var(--text-soft);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 16px;font-size:14px;display:flex}.kb-form__links .kb-link,.kb-form__actions--row .kb-link--btn{align-items:center;min-height:32px;margin:0 -4px;padding:0 4px;display:inline-flex}.kb-form__toggle{color:var(--kb-gold-3)}.kb-form__forgot{border-radius:var(--radius-sm);border:1px dashed var(--line-control);color:var(--text-soft);justify-items:start;gap:12px;padding:12px 14px;font-size:14px;display:grid}.kb-form__forgot[hidden]{display:none}.kb-confirm{border:1px dashed var(--line-control);border-radius:var(--radius-sm);flex-wrap:wrap;align-items:center;gap:10px;padding:12px 14px;display:flex}.kb-confirm__q{color:var(--text-soft);flex:100%;font-size:14px}.kb-back{min-height:32px;color:var(--text-soft);align-items:center;gap:6px;margin-bottom:8px;font-size:14px;text-decoration:none;display:inline-flex}.kb-back:hover{color:var(--champagne)}.kb-card{border-radius:var(--kb-radius);background:var(--kb-card);border:1px solid var(--kb-line);overflow-wrap:anywhere;flex-direction:column;gap:8px;padding:20px 24px;display:flex}.kb-card--flush{gap:0;padding:0;overflow:hidden}.kb-card__head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:12px;display:flex}.kb-card--gold{background:linear-gradient(160deg, #c8a96a1f, var(--kb-card) 55%);border-color:#c8a96a66}.kb-card__title{font-size:18px;font-weight:800;line-height:1.3}.kb-card__text{color:var(--kb-soft);font-size:15px;line-height:1.5}.kb-card__foot{flex-wrap:wrap;align-items:center;gap:10px;margin-top:auto;padding-top:12px;display:flex}.kb-card__foot .kb-link{align-items:center;min-height:32px;margin:0 -4px;padding:0 4px;display:inline-flex}.kb-btn{border-radius:var(--kb-radius-md);border:1px solid var(--kb-line-ctl);min-height:44px;font:inherit;text-align:center;color:var(--kb-text);cursor:pointer;background:0 0;justify-content:center;align-items:center;gap:8px;padding:0 18px;font-size:14px;font-weight:700;line-height:1.25;text-decoration:none;transition:box-shadow .2s,background-color .2s,color .2s,border-color .2s;display:inline-flex;position:relative}.kb-btn:hover{border-color:var(--kb-gold)}.kb-btn--gold{color:var(--kb-ink);background:var(--kb-gold);border-color:var(--kb-gold)}.kb-btn--gold:hover{background:#e0c48a;border-color:#e0c48a;box-shadow:0 6px 18px #d4b5774d}.kb-btn--ghost{color:var(--kb-text);border-color:var(--kb-line-ctl)}.kb-btn--ghost:hover{border-color:var(--kb-gold);background:#c8a96a14}.kb-btn--link{color:var(--kb-gold-3);border-color:#0000;padding:0 8px}.kb-btn--link:hover{color:var(--kb-gold-4);border-color:#0000}.kb-btn--danger{color:var(--kb-danger);border-color:var(--kb-danger-line)}.kb-btn--danger:hover{color:#ffd0d0;border-color:var(--kb-danger);background:#f0a3a314}.kb-btn--block{width:100%}.kb-btn--sm{border-radius:var(--kb-radius-sm);min-height:36px;padding:0 14px;font-size:13px}.kb-btn--link.kb-btn--sm{padding:0 8px}.kb-btn[aria-disabled=true]{opacity:.7;cursor:progress;box-shadow:none}.kb-btn[aria-disabled=true]:not([aria-busy=true]){cursor:default}.kb-pill{white-space:nowrap;min-height:28px;color:var(--kb-soft);background:#ffffff12;border-radius:999px;align-items:center;gap:6px;padding:0 11px;font-size:12px;font-weight:700;line-height:1.2;display:inline-flex}.kb-pill--ok{color:var(--kb-ok-text);background:#6cc58f1f}.kb-pill--gold{color:var(--kb-gold-3);background:#c8a96a29}.kb-pill--mute{color:var(--kb-soft);background:#ffffff12}.kb-pill--urgent{background:var(--kb-urgent);color:var(--kb-ink)}.kb-st{white-space:nowrap;color:var(--kb-off-text);align-items:center;gap:7px;font-size:13px;font-weight:700;line-height:1.3;display:inline-flex}.kb-st:before{content:"";background:var(--kb-off);border-radius:50%;flex:none;width:8px;height:8px}.kb-st--ok{color:var(--kb-ok-text)}.kb-st--ok:before{background:var(--kb-ok)}.kb-st--off{color:var(--kb-off-text)}.kb-st--wait{color:var(--kb-wait-text)}.kb-st--wait:before{background:var(--kb-wait)}.kb-st--danger{color:var(--kb-danger)}.kb-st--danger:before{background:var(--kb-danger)}.kb-st--lg{color:var(--kb-text);white-space:normal;gap:10px;font-size:22px;font-weight:800}.kb-st--lg:before{width:10px;height:10px}.kb-cnt{min-width:22px;color:var(--kb-text);background:#ffffff1a;border-radius:999px;justify-content:center;align-items:center;padding:2px 8px;font-size:12px;font-weight:700;line-height:1.3;display:inline-flex}.kb-chip{min-height:36px;color:var(--kb-soft);font:inherit;white-space:nowrap;cursor:pointer;background:0 0;border:1px solid #fff3;border-radius:999px;align-items:center;gap:6px;padding:0 14px;font-size:13px;font-weight:700;text-decoration:none;display:inline-flex;position:relative}.kb-chip:hover{border-color:var(--kb-gold);color:var(--kb-text)}.kb-chip.is-on,.kb-chip[aria-pressed=true]{background:var(--kb-gold);border-color:var(--kb-gold);color:var(--kb-ink)}.kb-bar{background:#ffffff1a;border-radius:3px;height:6px;overflow:hidden}.kb-bar>span{background:var(--kb-gold);border-radius:3px;height:100%;display:block}.kb-switch{min-height:44px;font:inherit;color:var(--kb-soft);cursor:pointer;text-align:left;background:0 0;border:0;align-items:center;gap:12px;padding:0;font-size:14px;font-weight:700;display:inline-flex}.kb-switch[aria-checked=true]{color:var(--kb-gold-3)}.kb-switch[aria-busy=true]{opacity:.7;cursor:progress}.kb-switch[aria-disabled=true]:not([aria-busy=true]){opacity:.7;cursor:default}.kb-switch__track{background:#ffffff24;border:1px solid #ffffff61;border-radius:999px;flex:none;width:46px;height:26px;transition:background .2s;position:relative}.kb-switch__track:after{content:"";background:var(--kb-soft);border-radius:50%;width:18px;height:18px;transition:transform .2s,background .2s;position:absolute;top:3px;left:3px}.kb-switch[aria-checked=true] .kb-switch__track{background:var(--kb-gold);border-color:var(--kb-gold)}.kb-switch[aria-checked=true] .kb-switch__track:after{background:var(--kb-ink);transform:translate(20px)}.kb-row{border-top:1px solid var(--kb-line-soft);align-items:center;gap:16px;padding:16px 0;display:flex}.kb-row__ic{border-radius:var(--kb-radius-md);background:var(--kb-card-2);width:44px;height:44px;color:var(--kb-gold-2);flex:none;justify-content:center;align-items:center;display:inline-flex}.kb-row__main{flex:1;min-width:0}.kb-row__title{font-size:15px;font-weight:700;line-height:1.35}.kb-row__meta{color:var(--kb-muted);margin-top:3px;font-size:13px}.kb-row__aside{text-align:right;flex:none}.kb-kv{margin:0}.kb-kv>div{border-top:1px solid var(--kb-line-soft);grid-template-columns:180px minmax(0,1fr);gap:16px;padding:12px 0;font-size:14px;display:grid}.kb-kv dt{color:var(--kb-muted)}.kb-kv dd{color:var(--kb-text-2);overflow-wrap:anywhere;margin:0;line-height:1.5}.kb-setrow__head{padding:22px 24px 18px}.kb-setrow{border-top:1px solid var(--kb-line-soft);align-items:center;gap:20px;padding:20px 24px;display:flex}.kb-setrow--stack{background:#ffffff04;flex-direction:column;align-items:stretch;gap:16px}.kb-setrow__main{flex:1;min-width:0}.kb-setrow__label{font-size:15px;font-weight:700;line-height:1.35}.kb-setrow__hint{color:var(--kb-muted);overflow-wrap:anywhere;margin-top:3px;font-size:13px;line-height:1.45}.kb-setrow__action{flex:none;align-items:center;gap:10px;display:flex}.kb-sub{flex-direction:column;gap:4px;display:flex}.kb-sub a,.kb-sub button{border-radius:var(--kb-radius-md);min-height:44px;color:var(--kb-soft);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;align-items:center;gap:12px;padding:0 14px;font-size:14px;font-weight:600;text-decoration:none;display:flex}.kb-sub a:hover,.kb-sub button:hover{color:var(--kb-text);background:#ffffff0a}.kb-sub a[aria-current=page],.kb-sub a[aria-current=true],.kb-sub a.is-on{background:var(--kb-card);color:var(--kb-text)}.kb-sub a[aria-current] .kb-ic,.kb-sub a.is-on .kb-ic{color:var(--kb-gold-2)}.kb-sub__sep{background:var(--kb-line);border:0;height:1px;margin:8px 0}.kb-sub__meta{color:var(--kb-muted);margin-left:auto;font-size:12px}.kb-list-nav a,.kb-list-nav button{border:0;border-top:1px solid var(--kb-line-soft);width:100%;min-height:56px;color:var(--kb-text);font:inherit;text-align:left;cursor:pointer;background:0 0;align-items:center;gap:14px;padding:0 18px;font-size:15px;font-weight:600;text-decoration:none;display:flex}.kb-list-nav>:first-child{border-top:0}.kb-list-nav a:hover,.kb-list-nav button:hover{background:#ffffff08}.kb-list-nav__ic{color:var(--kb-gold-2)}.kb-list-nav__label{flex:1;min-width:0}.kb-list-nav__chev{color:var(--kb-faint)}.kb-list-nav .kb-list-nav__item--danger,.kb-list-nav .kb-list-nav__item--danger .kb-list-nav__ic{color:var(--kb-danger)}.kb-list-nav [aria-busy=true]{opacity:.7;cursor:progress}.kb-ava{background:var(--kb-gold);width:32px;height:32px;color:var(--kb-ink);border-radius:50%;flex:none;justify-content:center;align-items:center;font-size:14px;font-weight:800;line-height:1;display:inline-flex}.kb-ava--24{width:24px;height:24px;font-size:12px}.kb-ava--40{width:40px;height:40px;font-size:16px}.kb-ava--56{width:56px;height:56px;font-size:22px}.kb-btn:focus-visible,.kb-link:focus-visible,.kb-link--btn:focus-visible,.kb-chip:focus-visible,.kb-switch:focus-visible,.kb-sub a:focus-visible,.kb-sub button:focus-visible,.kb-list-nav a:focus-visible,.kb-list-nav button:focus-visible{outline:2px solid var(--kb-gold);outline-offset:2px}.kb-list-nav a:focus-visible,.kb-list-nav button:focus-visible{outline-offset:-2px}@media (min-width:760px){.kb-grid{grid-template-columns:1fr 1fr;gap:20px}}@media (max-width:1100px){.kb-main{padding:32px 32px 56px}}@media (max-width:859px){.kb-main{padding:8px 16px 32px}.kb--nav{--kb-bottom-offset:calc(var(--kb-tabs-h) + env(safe-area-inset-bottom))}.kb--nav .kb-main{padding-bottom:calc(var(--kb-bottom-offset) + 24px)}html:has(.kb--nav){scroll-padding-top:16px;scroll-padding-bottom:calc(var(--kb-tabs-h) + env(safe-area-inset-bottom) + 16px)}html:has(.kb--focus){scroll-padding-top:76px;scroll-padding-bottom:16px}html:has(.kb--focus .kb-lesson__foot){scroll-padding-bottom:calc(84px + env(safe-area-inset-bottom))}html:has(.kb--focus .kb-quiz__nav){scroll-padding-bottom:104px}.kb-h1{font-size:26px}.kb-card{padding:16px 18px}.kb-card--flush{padding:0}.kb-setrow,.kb-setrow__head{padding:16px 18px}.kb-setrow{flex-wrap:wrap;gap:12px}.kb-kv>div{grid-template-columns:minmax(0,1fr);gap:2px;padding:10px 0}.kb-kv dt{font-size:12px}.kb-kv dd{font-size:15px}.kb-btn--sm:after,.kb-chip:after{content:"";position:absolute;inset:-4px 0}}