.grammar-shell{--grammar-bg:#050619;--grammar-ink:#f4f3ff;--grammar-muted:#a9afd0;--grammar-faint:#777fa8;--grammar-violet:#9276ff;--grammar-blue:#5f8fff;--grammar-pink:#ff8fc7;--grammar-mint:#65e6b7;--grammar-amber:#ffc35c;--grammar-card:#ffffff0d;--grammar-border:#ffffff1b;isolation:isolate;min-height:100dvh;color:var(--grammar-ink);background:radial-gradient(ellipse 900px 600px at 12% -10%,#9276ff40,transparent 60%),radial-gradient(ellipse 760px 520px at 100% 8%,#5f8fff33,transparent 58%),radial-gradient(ellipse 900px 700px at 50% 110%,#9276ff24,transparent 65%),var(--grammar-bg);font-family:var(--font-sans);line-height:1.6;position:relative;overflow-x:hidden}.grammar-stars{z-index:-1;pointer-events:none;opacity:.38;background-image:radial-gradient(circle,#ffffffd1 1px,#0000 1px),radial-gradient(circle,#b1a4ffb8 1px,#0000 1px);background-position:0 0,37px 31px;background-size:83px 83px,121px 121px;position:fixed;inset:0}.grammar-container{z-index:1;width:min(100% - 32px,1080px);padding:30px 0 calc(var(--mobile-content-bottom,88px) + 64px);margin-inline:auto;position:relative}.grammar-breadcrumb{min-height:44px;color:var(--grammar-faint);align-items:center;gap:10px;margin-bottom:18px;font-size:13px;display:flex}.grammar-breadcrumb a{min-height:44px;color:var(--grammar-muted);align-items:center;gap:8px;font-weight:700;text-decoration:none;display:inline-flex}.grammar-breadcrumb svg{width:16px;height:16px}.grammar-breadcrumb a:focus-visible,.grammar-topic-card:focus-visible,.grammar-error-card button:focus-visible,.grammar-question-options button:focus-visible,.grammar-mission-complete a:focus-visible{outline-offset:3px;outline:3px solid #d4c9ff}.grammar-hub-hero,.grammar-lesson-hero{border:1px solid var(--grammar-border);background:linear-gradient(135deg,#9276ff47,#5f8fff24);border-radius:30px;position:relative;overflow:hidden;box-shadow:inset 0 1px #ffffff0f,0 30px 90px #0b072f59}.grammar-hub-hero{padding:clamp(30px,6vw,48px)}.grammar-hub-hero:before,.grammar-lesson-hero:before{content:"";pointer-events:none;background:radial-gradient(circle,#9276ff85,#0000 70%);border-radius:50%;width:360px;height:360px;position:absolute;top:-140px;right:-120px}.grammar-kicker{color:#ffc1df;letter-spacing:.1em;text-transform:uppercase;background:#ff8fc721;border:1px solid #ff8fc74d;border-radius:999px;align-items:center;gap:7px;width:fit-content;padding:5px 12px;font-size:11px;font-weight:800;display:inline-flex;position:relative}.grammar-kicker svg{width:13px;height:13px}.grammar-hub-hero h1,.grammar-lesson-hero h1{font-family:var(--font-display);letter-spacing:-.035em;margin:13px 0 8px;font-size:clamp(36px,7vw,52px);font-weight:800;line-height:1.08;position:relative}.grammar-hub-hero__lead{color:#f7f5ff;max-width:610px;font-size:clamp(16px,2.5vw,18px);font-weight:650;position:relative}.grammar-hub-hero__support{max-width:610px;color:var(--grammar-muted);margin-top:4px;font-size:14px;position:relative}.grammar-hub-stats{flex-wrap:wrap;gap:clamp(24px,5vw,46px);margin-top:24px;display:flex;position:relative}.grammar-hub-stats div{gap:1px;display:grid}.grammar-hub-stats strong{font-family:var(--font-display);font-size:22px}.grammar-hub-stats span{color:var(--grammar-muted);letter-spacing:.06em;text-transform:uppercase;font-size:11px;font-weight:700}.grammar-section-heading{justify-content:space-between;align-items:end;gap:20px;margin:38px 0 18px;display:flex}.grammar-section-heading>div{align-items:center;gap:12px;display:flex}.grammar-section-heading__icon{color:#c9bdff;background:#9276ff26;border-radius:14px;place-items:center;width:42px;height:42px;display:grid}.grammar-section-heading__icon svg{width:20px;height:20px}.grammar-section-heading h2{font-family:var(--font-display);font-size:21px;line-height:1.2}.grammar-section-heading p{color:var(--grammar-faint);margin-top:2px;font-size:12px}.grammar-section-heading>span{color:var(--grammar-faint);white-space:nowrap;align-items:center;gap:7px;font-size:12px;display:inline-flex}.grammar-section-heading>span svg{width:15px;height:15px}.grammar-topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;transition:opacity .18s;display:grid}.grammar-topic-grid.is-loading{opacity:.62}.grammar-topic-card{--topic-accent:var(--grammar-violet);--topic-art-height:118px;--topic-art-space:136px;border:1px solid var(--grammar-border);background:var(--grammar-card);min-width:0;color:inherit;touch-action:manipulation;border-radius:22px;padding:21px;text-decoration:none;transition:transform .18s cubic-bezier(.23,1,.32,1),border-color .18s,background-color .18s;display:block;position:relative;overflow:hidden;box-shadow:inset 0 1px #ffffff09}.grammar-accent--blue{--topic-accent:var(--grammar-blue)}.grammar-accent--mint{--topic-accent:var(--grammar-mint)}.grammar-accent--pink{--topic-accent:var(--grammar-pink)}.grammar-topic-card__glow{opacity:.22;background:radial-gradient(circle,var(--topic-accent),transparent 70%);pointer-events:none;border-radius:50%;width:180px;height:180px;position:absolute;top:-55px;right:-55px}.grammar-topic-card__meta{z-index:2;color:var(--topic-accent);font-family:var(--font-display);letter-spacing:.08em;text-transform:uppercase;justify-content:space-between;align-items:start;gap:12px;font-size:11px;font-weight:800;display:flex;position:relative}.grammar-status{color:var(--grammar-muted);font-family:var(--font-sans);letter-spacing:.045em;background:#ffffff0e;border:1px solid #ffffff1a;border-radius:999px;padding:3px 9px;font-size:10px}.grammar-status--completed{color:#91f1ce;background:#65e6b71f;border-color:#65e6b74d}.grammar-status--in-progress{color:#ffd388;background:#ffc35c1f;border-color:#ffc35c52}.grammar-topic-card__art{z-index:1;width:calc(100% - 42px);height:var(--topic-art-height);pointer-events:none;justify-content:center;align-items:center;display:flex;position:absolute;top:56px;left:50%;overflow:hidden;transform:translate(-50%)}.grammar-topic-card__art img{object-fit:contain;object-position:center top;filter:drop-shadow(0 13px 20px #07051e4d);width:100%;min-width:0;max-width:none;height:100%;min-height:0;max-height:100%;position:absolute;inset:0}.grammar-topic-card__content{z-index:2;padding-top:var(--topic-art-space);position:relative}.grammar-topic-card h3{font-family:var(--font-display);letter-spacing:-.015em;font-size:19px;font-weight:800}.grammar-topic-card__content>p{min-height:44px;color:var(--grammar-muted);margin-top:3px;font-size:13px;line-height:1.55}.grammar-progress{background:#ffffff13;border-radius:999px;height:6px;margin:15px 0 14px;position:relative;overflow:hidden}.grammar-progress>span{border-radius:inherit;background:linear-gradient(90deg,var(--topic-accent),var(--grammar-blue));transform-origin:0;width:100%;height:100%;transition:transform .22s cubic-bezier(.23,1,.32,1);display:block}.grammar-topic-card__action{background:var(--topic-accent);color:#09071d;min-height:42px;font-family:var(--font-display);border-radius:999px;align-items:center;gap:7px;padding:9px 17px;font-size:12px;font-weight:800;display:inline-flex;position:relative}.grammar-topic-card__action svg{width:15px;height:15px}.grammar-topic-card__action.is-muted{color:var(--grammar-faint);background:0 0;border:1px solid #ffffff17}.grammar-topic-card:active{transform:scale(.98)}@media(hover:hover)and (pointer:fine){a.grammar-topic-card:hover{border-color:color-mix(in srgb,var(--topic-accent) 68%,transparent);background:#fff1;transform:translateY(-3px)}.grammar-breadcrumb a:hover{color:#fff}}.grammar-ace-note{border:1px solid var(--grammar-border);background:#ffffff0a;border-radius:20px;align-items:center;gap:16px;margin-top:38px;padding:19px 23px;display:flex}.grammar-ace-note>span{color:#d5ccff;background:linear-gradient(145deg,#9276ff4d,#5f8fff1f);border-radius:16px;flex:0 0 48px;place-items:center;height:48px;display:grid}.grammar-ace-note svg{width:23px;height:23px}.grammar-ace-note p{color:var(--grammar-muted);font-size:13px}.grammar-ace-note strong{color:#fff}.grammar-reading-progress{z-index:80;background:#ffffff0a;height:4px;position:fixed;inset:0 0 auto}.grammar-reading-progress span{background:linear-gradient(90deg,var(--grammar-violet),var(--grammar-blue),var(--grammar-mint));transform-origin:0;width:100%;height:100%;transition:transform .18s ease-out;display:block}.grammar-lesson-container{width:min(100% - 32px,940px)}.grammar-lesson-hero{grid-template-columns:minmax(0,1fr) 280px;align-items:center;gap:28px;padding:clamp(24px,5vw,42px);display:grid}.grammar-lesson-hero>div{z-index:1;position:relative}.grammar-lesson-hero>div>p{max-width:560px;color:var(--grammar-muted);font-size:16px}.grammar-lesson-hero>img{z-index:1;object-fit:contain;filter:drop-shadow(0 22px 30px #0805226b);width:100%;height:200px;position:relative}.grammar-lesson-hero__art{z-index:1;text-align:center;min-width:0;position:relative}.grammar-lesson-hero__art img{object-fit:contain;filter:drop-shadow(0 22px 30px #0805226b);width:100%;height:180px;display:block}.grammar-lesson-hero__art>p{color:#dcd6fa;font-family:var(--font-display);margin-top:5px;font-size:11px;font-weight:700;line-height:1.35}.grammar-pill-row{flex-wrap:wrap;gap:8px;margin-top:18px;display:flex}.grammar-pill-row span{color:#d4cbff;background:#9276ff17;border:1px solid #b3a1ff33;border-radius:999px;padding:5px 11px;font-size:11px;font-weight:750}.grammar-lesson-content{margin-top:22px}.grammar-lesson-section{border:1px solid var(--grammar-border);background:#ffffff0b;border-radius:24px;margin-top:18px;padding:clamp(20px,4vw,30px);scroll-margin-top:24px;box-shadow:inset 0 1px #ffffff09}.grammar-lesson-section__heading{align-items:center;gap:13px;margin-bottom:19px;display:flex}.grammar-lesson-section__heading>span{color:#cfc4ff;background:#9276ff24;border-radius:14px;flex:0 0 42px;place-items:center;height:42px;display:grid}.grammar-lesson-section__heading svg{width:20px;height:20px}.grammar-lesson-section__heading p{color:var(--grammar-pink);letter-spacing:.1em;text-transform:uppercase;font-size:10px;font-weight:800}.grammar-lesson-section h2{font-family:var(--font-display);letter-spacing:-.02em;font-size:clamp(20px,4vw,25px);line-height:1.2}.grammar-brief-card{background:linear-gradient(135deg,#9276ff21,#5f8fff0d);border:1px solid #9276ff38;border-radius:18px;padding:20px}.grammar-brief-card>p{color:#e8e5fa;font-size:15px;line-height:1.75}.grammar-brief-card>p+p{margin-top:10px}.grammar-concept-grid,.grammar-compare-grid,.grammar-summary-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.grammar-three-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.grammar-concept-card{background:#0808205c;border:1px solid #ffffff14;border-radius:17px;min-width:0;padding:17px}.grammar-concept-card>span{color:#a8c1ff;letter-spacing:.07em;text-transform:uppercase;background:#5f8fff1f;border-radius:999px;padding:3px 8px;font-size:10px;font-weight:800;display:inline-flex}.grammar-concept-card h3{color:#fff;font-family:var(--font-display);margin:7px 0 5px;font-size:15px;line-height:1.35}.grammar-concept-card>div{color:var(--grammar-muted);font-size:13px;line-height:1.65}.grammar-concept-card>div>p+p{margin-top:6px}.grammar-note{color:var(--grammar-faint)!important;font-size:12px!important}.grammar-formula{color:#d6ceff;font-family:var(--font-display);background:#140d3f80;border:1px solid #9276ff33;border-radius:15px;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;margin-top:14px;padding:14px;font-size:13px;display:flex}.grammar-formula strong{color:#fff;background:#9276ff2b;border-radius:8px;padding:3px 8px}.grammar-formula svg{width:15px;height:15px}.grammar-watchout,.grammar-exam-booster,.grammar-bridge-note{color:#e9e1cd;background:#ffc35c14;border:1px solid #ffc35c40;border-radius:15px;align-items:flex-start;gap:11px;margin-top:14px;padding:14px 16px;font-size:13px;display:flex}.grammar-watchout svg,.grammar-exam-booster svg{width:18px;height:18px;color:var(--grammar-amber);flex:0 0 18px;margin-top:2px}.grammar-rule-table{border:1px solid #ffffff14;border-radius:16px;overflow:hidden}.grammar-rule-table>div{color:var(--grammar-muted);grid-template-columns:1.2fr .8fr 1fr;gap:12px;padding:13px 15px;font-size:13px;display:grid}.grammar-rule-table>div:nth-child(odd){background:#ffffff09}.grammar-rule-table strong{color:#fff}.grammar-rule-table span:nth-child(2){color:#c5b9ff;font-weight:800}.grammar-lesson-artwork{object-fit:contain;border-radius:15px;width:100%;height:auto;margin:8px 0 12px;display:block}.grammar-live-now{background:#65e6b712;border:1px solid #65e6b73d;border-radius:16px;align-items:center;gap:14px;margin-bottom:14px;padding:16px;display:flex}.grammar-live-now>span{background:var(--grammar-mint);border:3px solid #65e6b747;border-radius:50%;flex:0 0 14px;width:14px;height:14px;box-shadow:0 0 0 7px #65e6b714,0 0 18px #65e6b7b8}.grammar-live-now strong{color:#9df4d3;font-family:var(--font-display);letter-spacing:.08em;text-transform:uppercase;font-size:13px}.grammar-live-now p{color:var(--grammar-muted);margin-top:2px;font-size:13px}.grammar-ing-transform{flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:14px;display:flex}.grammar-ing-transform span{color:var(--grammar-muted);font-family:var(--font-display);background:#9276ff14;border:1px solid #9276ff33;border-radius:12px;padding:10px 13px;font-size:13px}.grammar-ing-transform strong{color:#9df4d3}.grammar-past-timeline{color:var(--grammar-faint);text-align:center;grid-template-columns:1fr 1fr;align-items:center;gap:10px 12px;margin-bottom:16px;font-size:11px;display:grid}.grammar-past-timeline:before{content:"";background:linear-gradient(90deg,var(--grammar-amber),#9276ff8c 58%,#ffffff24);border-radius:999px;grid-area:1/1/auto/-1;height:5px}.grammar-past-timeline span,.grammar-past-timeline strong{border-radius:999px;grid-row:2;padding:5px 9px;font-weight:750}.grammar-past-timeline span{color:#ffd894;background:#ffc35c1f}.grammar-past-timeline strong{color:var(--grammar-muted);background:#ffffff0f}.grammar-past-timeline em{color:#ffd894;font-family:var(--font-display);letter-spacing:.08em;text-transform:uppercase;grid-area:3/1/auto/-1;font-size:11px;font-style:normal;font-weight:700}.grammar-verb-grid{grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:10px;margin-top:14px;padding:0;list-style:none;display:grid}.grammar-verb-grid li{min-width:0;font-family:var(--font-display);background:#9276ff14;border:1px solid #9276ff33;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:11px 12px;font-size:13px;display:flex}.grammar-verb-grid span{color:var(--grammar-muted)}.grammar-verb-grid strong{color:#9df4d3}.grammar-verb-grid svg{width:14px;height:14px;color:var(--grammar-faint);flex:none}.grammar-progress-band{color:var(--grammar-faint);text-align:center;grid-template-columns:auto 1fr auto;align-items:center;gap:10px 12px;margin-bottom:16px;font-size:11px;display:grid}.grammar-progress-band>span:first-child,.grammar-progress-band>span:last-of-type{font-weight:750}.grammar-progress-band__band{color:#d5ccff;height:34px;font-family:var(--font-display);background:linear-gradient(90deg,#9276ff1a,#9276ff47,#9276ff1a);border:1px solid #9276ff6b;border-radius:12px;font-size:11px;font-weight:750;line-height:32px;position:relative;box-shadow:0 0 22px #9276ff38}.grammar-progress-band__caption{color:#d5ccff;font-family:var(--font-display);letter-spacing:.08em;text-transform:uppercase;grid-column:1/-1;font-size:11px;font-weight:700}.grammar-bridge{justify-items:center;gap:6px;margin-bottom:16px;display:grid}.grammar-bridge svg{width:min(100%,420px);height:auto}.grammar-bridge .grammar-bridge__block{stroke-width:1.3px}.grammar-bridge .is-past{fill:#ff8fc729;stroke:var(--grammar-pink)}.grammar-bridge .is-now{fill:#65e6b72e;stroke:var(--grammar-mint)}.grammar-bridge .grammar-bridge__text{font-family:var(--font-display);font-size:11px;font-weight:700}.grammar-bridge .grammar-bridge__text.is-past{fill:var(--grammar-pink);stroke:none}.grammar-bridge .grammar-bridge__text.is-now{fill:var(--grammar-mint);stroke:none}.grammar-bridge .grammar-bridge__link{fill:none;stroke:var(--grammar-violet);stroke-width:3px;stroke-linecap:round}.grammar-bridge .grammar-bridge__hub{fill:#9276ff40;stroke:var(--grammar-violet);stroke-width:1.4px}.grammar-bridge .grammar-bridge__tick{fill:none;stroke:#cabcff;stroke-width:2.4px;stroke-linecap:round;stroke-linejoin:round}.grammar-bridge__caption{color:#d5ccff;font-family:var(--font-display);letter-spacing:.08em;text-transform:uppercase;font-size:11px;font-weight:700}.grammar-duration{gap:12px;margin-bottom:16px;display:grid}.grammar-duration__row{grid-template-columns:58px minmax(0,1fr);align-items:center;gap:12px;display:grid}.grammar-duration__label{font-family:var(--font-display);letter-spacing:.07em;font-size:12px;font-weight:800}.grammar-duration__row.is-since .grammar-duration__label{color:#9df4d3}.grammar-duration__row.is-for .grammar-duration__label{color:#a8c1ff}.grammar-duration__track{background:#0808205c;border:1px solid #ffffff17;border-radius:12px;height:34px;position:relative}.grammar-duration__fill{border-radius:8px;position:absolute;inset:5px 5px 5px 32%}.grammar-duration__row.is-since .grammar-duration__fill{border-left:3px solid var(--grammar-mint);background:linear-gradient(90deg,#65e6b766,#65e6b71a)}.grammar-duration__row.is-for .grammar-duration__fill{background:linear-gradient(90deg,#5f8fff24,#5f8fff61,#5f8fff24)}.grammar-duration__mark{color:var(--grammar-muted);font-size:11px;font-weight:750;position:absolute;top:50%;transform:translateY(-50%)}.grammar-duration__mark.is-start{left:calc(32% + 10px)}.grammar-duration__mark.is-end{right:11px}.grammar-compare-grid.is-media .grammar-lesson-artwork{aspect-ratio:3/2;object-fit:contain;height:auto}.grammar-interrupt{gap:10px;margin:6px 0 14px;display:grid}.grammar-interrupt__lane{min-height:46px;padding:6px 0 0 96px;position:relative}.grammar-interrupt__lane>b{width:88px;color:var(--grammar-faint);letter-spacing:.05em;text-transform:uppercase;font-size:10px;font-weight:750;line-height:1.3;position:absolute;top:12px;left:0}.grammar-interrupt__long{color:#d5ccff;height:34px;font-family:var(--font-display);background:linear-gradient(90deg,#9276ff42,#9276ff1f);border:1px solid #9276ff6b;border-radius:10px;justify-content:center;align-items:center;font-size:12px;font-weight:700;display:flex}.grammar-interrupt__short{height:34px;position:relative}.grammar-interrupt__short>i{background:var(--grammar-amber);border-radius:50%;width:15px;height:15px;position:absolute;top:50%;left:46%;transform:translate(-50%,-50%);box-shadow:0 0 0 6px #ffc35c29}.grammar-interrupt__short>span{color:#ffd894;font-family:var(--font-display);font-size:12px;font-weight:700;position:absolute;top:50%;left:calc(46% + 16px);transform:translateY(-50%)}.grammar-parallel{gap:10px;margin:6px 0 14px;display:grid}.grammar-parallel>div{color:#9df4d3;height:34px;font-family:var(--font-display);background:linear-gradient(90deg,#65e6b733,#65e6b717);border:1px solid #65e6b757;border-radius:10px;justify-content:center;align-items:center;font-size:12px;font-weight:700;display:flex}.grammar-now-window{color:var(--grammar-faint);text-align:center;grid-template-columns:1fr 1.15fr 1fr;align-items:center;gap:8px;margin-top:18px;font-size:11px;display:grid}.grammar-now-window:before{content:"";background:linear-gradient(90deg,transparent,var(--grammar-violet),var(--grammar-mint),transparent);border-radius:999px;grid-area:1/1/auto/-1;height:5px}.grammar-now-window span,.grammar-now-window strong{grid-row:2}.grammar-now-window strong{color:#9df4d3;background:#65e6b71a;border-radius:999px;padding:5px 8px}.grammar-time-chips{background:radial-gradient(circle,#9276ff1f,#0000 68%);border:1px solid #9276ff33;border-radius:18px;flex-wrap:wrap;justify-content:center;gap:10px;padding:22px;display:flex}.grammar-time-chips span{color:#d5ccff;background:#9276ff1c;border:1px solid #9276ff47;border-radius:999px;padding:7px 12px;font-size:12px;font-weight:750}.grammar-story-steps{grid-template-columns:1fr auto 1fr;align-items:center;gap:13px;display:grid}.grammar-story-steps>div{background:#08082057;border:1px solid #ffffff14;border-radius:15px;padding:15px}.grammar-story-steps span{color:var(--grammar-pink);letter-spacing:.07em;text-transform:uppercase;font-size:10px;font-weight:800}.grammar-story-steps p{color:var(--grammar-muted);margin-top:4px;font-size:13px}.grammar-story-steps>svg{width:18px;height:18px;color:var(--grammar-violet)}.grammar-error-grid{gap:12px;display:grid}.grammar-error-card{background:#1f081b33;border:1px solid #ff6f8e29;border-radius:17px;padding:17px}.grammar-error-card__scan{color:#ff9eb4;letter-spacing:.08em;text-transform:uppercase;align-items:center;gap:7px;font-size:10px;font-weight:800;display:flex}.grammar-error-card__scan span{background:var(--grammar-pink);width:7px;height:7px;box-shadow:0 0 10px var(--grammar-pink);border-radius:50%}.grammar-error-card>p{color:#ece8fa;font-family:var(--font-display);margin:10px 0;font-size:14px}.grammar-error-card u{text-underline-offset:4px;text-decoration-color:#ff6f8e;text-decoration-thickness:2px}.grammar-error-card button{color:#ffbadb;cursor:pointer;background:#ff8fc714;border:1px solid #ff8fc740;border-radius:12px;align-items:center;gap:7px;min-height:44px;padding:8px 12px;font-size:12px;font-weight:750;transition:transform .15s cubic-bezier(.23,1,.32,1),background-color .15s;display:inline-flex}.grammar-error-card button:active{transform:scale(.97)}.grammar-error-card button:disabled{cursor:default;opacity:.7}.grammar-error-card button svg{width:15px;height:15px}.grammar-error-card__answer{color:#bcf6df;background:#65e6b717;border-radius:12px;gap:3px;margin-top:12px;padding:12px;display:grid}.grammar-error-card__answer strong{align-items:center;gap:7px;display:flex}.grammar-error-card__answer svg{width:15px;height:15px}.grammar-error-card__answer span{color:#8fcdb5;font-size:12px}.grammar-chat{gap:11px;display:grid}.grammar-chat p{color:#dad8ea;background:#5f8fff17;border:1px solid #ffffff14;border-radius:5px 16px 16px;width:fit-content;max-width:82%;padding:12px 15px;font-size:13px}.grammar-chat p:nth-child(2n){background:#9276ff1c;border-radius:16px 5px 16px 16px;justify-self:end}.grammar-chat span{color:#9eb9ff;text-transform:uppercase;margin-bottom:3px;font-size:10px;font-weight:800;display:block}.grammar-chat p:nth-child(2n) span{color:#c6b9ff;text-align:right}.grammar-quick-check{gap:14px;display:grid}.grammar-question-card{background:#08082057;border:1px solid #ffffff14;border-radius:17px;min-width:0;padding:16px}.grammar-question-card legend{color:#f3f0ff;width:100%;font-family:var(--font-display);align-items:center;gap:9px;padding:0 3px 10px;font-size:14px;font-weight:750;display:flex}.grammar-question-card legend>span{color:#c9bdff;background:#9276ff26;border-radius:9px;flex:0 0 26px;place-items:center;height:26px;font-size:11px;display:grid}.grammar-question-options{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.grammar-question-options.has-four-options{grid-template-columns:repeat(2,minmax(0,1fr))}.grammar-question-options button{min-width:0;min-height:48px;color:var(--grammar-muted);font:inherit;text-align:left;cursor:pointer;background:#ffffff09;border:1px solid #ffffff17;border-radius:12px;align-items:center;gap:8px;padding:9px 11px;font-size:12px;transition:transform .15s cubic-bezier(.23,1,.32,1),border-color .15s,background-color .15s;display:flex;position:relative}.grammar-question-options button:active{transform:scale(.97)}.grammar-question-options button:disabled{cursor:default}.grammar-question-options button>span{color:#fff;background:#ffffff12;border-radius:8px;flex:0 0 25px;place-items:center;height:25px;font-size:10px;font-weight:800;display:grid}.grammar-question-options button>svg{width:15px;height:15px;margin-left:auto}.grammar-question-options button.is-selected{color:#fff;background:#9276ff1f;border-color:#9276ff80}.grammar-question-options button.is-correct{color:#c6f8e5;background:#65e6b71a;border-color:#65e6b773}.grammar-question-options button.is-correct>span{color:#8ff1cc;background:#65e6b733}.grammar-question-options button.is-wrong{color:#ffc1ce;background:#ff6f8e17;border-color:#ff6f8e6b}.grammar-question-feedback{color:var(--grammar-muted);background:#ffffff09;border-radius:11px;margin-top:10px;padding:10px 12px;font-size:12px}.grammar-question-feedback.is-correct strong{color:#8ff1cc}.grammar-question-feedback.is-wrong strong{color:#ff9eb4}.grammar-check-score{color:var(--grammar-muted);border:1px solid #9276ff33;border-radius:15px;align-items:center;gap:10px;padding:13px 15px;font-size:12px;display:flex}.grammar-check-score svg{color:#9b86ff;width:20px;height:20px}.grammar-check-score strong{color:#fff}.grammar-frequency-bars{gap:9px;display:grid}.grammar-frequency-bars>div{color:var(--grammar-muted);grid-template-columns:82px 1fr 38px;align-items:center;gap:10px;font-size:11px;display:grid}.grammar-frequency-bars span{color:#fff;text-transform:capitalize;font-weight:700}.grammar-frequency-bars i{background:#ffffff12;border-radius:999px;height:7px;overflow:hidden}.grammar-frequency-bars b{border-radius:inherit;background:linear-gradient(90deg,var(--grammar-violet),var(--grammar-blue));transform-origin:0;width:100%;height:100%;display:block}.grammar-frequency-bars em{color:var(--grammar-faint);text-align:right;font-style:normal}.grammar-centred-example{color:var(--grammar-muted);text-align:center;margin-top:13px;font-size:13px}.grammar-wrong-right{grid-template-columns:1fr 1fr;gap:9px;margin-top:13px;display:grid}.grammar-wrong-right span{color:#ffadbd;background:#ff6f8e14;border-radius:12px;align-items:center;gap:8px;padding:11px 13px;font-size:12px;display:flex}.grammar-wrong-right span:last-child{color:#9bf0cf;background:#65e6b714}.grammar-wrong-right svg{width:15px;height:15px}.grammar-bridge-note{color:var(--grammar-muted);background:#5f8fff12;border-color:#5f8fff3b;display:block}.grammar-bridge-note strong{color:#a9c2ff}.grammar-bridge-note p{margin-top:3px}.grammar-exam-booster{background:#9276ff16;border-color:#9276ff42}.grammar-exam-booster svg{color:#c6b9ff}.grammar-exam-list{counter-reset:exam-step;gap:9px;display:grid}.grammar-exam-list p{min-height:42px;color:var(--grammar-muted);background:#08082057;border:1px solid #ffffff14;border-radius:13px;padding:11px 13px 11px 48px;font-size:13px;position:relative}.grammar-exam-list p:before{counter-increment:exam-step;content:counter(exam-step);color:#c9bdff;background:#9276ff26;border-radius:8px;place-items:center;width:24px;height:24px;font-size:11px;font-weight:800;display:grid;position:absolute;top:9px;left:11px}.grammar-mission-complete{text-align:center;background:radial-gradient(circle at 50% 0,#65e6b721,#0000 48%),#ffffff0a;border:1px solid #65e6b73b;border-radius:26px;place-items:center;margin-top:20px;padding:clamp(28px,6vw,44px);display:grid}.grammar-mission-complete>span{color:#7becbd;background:#65e6b71c;border:4px solid #65e6b752;border-radius:50%;place-items:center;width:68px;height:68px;display:grid}.grammar-mission-complete>span svg{width:34px;height:34px}.grammar-mission-complete>p:first-of-type{color:#83e8c0;letter-spacing:.1em;text-transform:uppercase;margin-top:13px;font-size:10px;font-weight:800}.grammar-mission-complete h2{font-family:var(--font-display);margin-top:3px;font-size:25px}.grammar-mission-complete>p:last-of-type{max-width:580px;color:var(--grammar-muted);margin-top:5px;font-size:13px}.grammar-mission-complete>div{flex-wrap:wrap;justify-content:center;gap:9px;margin-top:20px;display:flex}.grammar-mission-complete a{min-height:46px;color:var(--grammar-muted);border:1px solid #ffffff1c;border-radius:999px;justify-content:center;align-items:center;gap:7px;padding:9px 16px;font-size:12px;font-weight:800;text-decoration:none;transition:transform .15s cubic-bezier(.23,1,.32,1),background-color .15s;display:inline-flex}.grammar-mission-complete a.is-primary{background:var(--grammar-violet);color:#09071d;border-color:#0000}.grammar-mission-complete a:active{transform:scale(.97)}.grammar-mission-complete a svg{width:15px;height:15px}@media(max-width:720px){.grammar-container,.grammar-lesson-container{width:min(100% - 24px,1080px);padding-top:18px}.grammar-hub-hero{border-radius:24px}.grammar-topic-grid{grid-template-columns:1fr}.grammar-section-heading{align-items:flex-start}.grammar-section-heading>span{display:none}.grammar-topic-card{--topic-art-height:108px;--topic-art-space:126px}.grammar-lesson-hero{border-radius:24px;grid-template-columns:1fr}.grammar-lesson-hero>img{height:150px}.grammar-lesson-hero__art img{height:170px}.grammar-lesson-section{border-radius:20px}.grammar-question-options{grid-template-columns:1fr}}@media(max-width:520px){.grammar-hub-stats{gap:18px 25px}.grammar-concept-grid,.grammar-compare-grid,.grammar-summary-grid,.grammar-three-grid{grid-template-columns:1fr}.grammar-rule-table>div{grid-template-columns:1fr;gap:2px}.grammar-story-steps{grid-template-columns:1fr}.grammar-story-steps>svg{justify-self:center;transform:rotate(90deg)}.grammar-wrong-right{grid-template-columns:1fr}.grammar-interrupt__lane{padding:22px 0 0}.grammar-interrupt__lane>b{width:auto;top:0}.grammar-progress-band{grid-template-columns:1fr}.grammar-duration__row{grid-template-columns:1fr;gap:5px}.grammar-question-options.has-four-options{grid-template-columns:1fr}.grammar-chat p{max-width:94%}.grammar-mission-complete>div,.grammar-mission-complete a{width:100%}}@media(prefers-reduced-motion:reduce){.grammar-topic-card,.grammar-progress>span,.grammar-reading-progress span,.grammar-error-card button,.grammar-question-options button,.grammar-mission-complete a{transition-duration:1ms}.grammar-topic-card:active,.grammar-error-card button:active,.grammar-question-options button:active,.grammar-mission-complete a:active{transform:none}}