:root{--primary: #2f80ed;--primary-dark: #1b5fc0;--green: #27c69a;--red: #f56565;--err: #f56565;--gold: #f59e0b;--bg: #f2f7fb;--bg2: #e9f2ec;--card: #ffffff;--panel2: #edf3f8;--text: #243447;--muted: #6b7c93;--border: #e3ebf3;--line2: #cfdcea;--key-bg: #ffffff;--key-border: #d5dfe9;--header-bg: #203764;--hero-a: #2f80ed;--hero-b: #56ccf2;--bub-bg: #fffdf6;--bub-ink: #243447;--bub-line: #243447;--perch1: #8a6b4f;--perch2: #6fa07a;--perch3: #b08a5e;--env-hillF: #c7e3c2;--env-hillN: #b7d8ac;--env-grass: #a9cba0;--env-cloud: #ffffff;--env-cloudOp: .9;--env-star: 0;--env-sun: 1;--env-moon: 0;--charFilter: none}body.dark{--bg: #1d2b4c;--bg2: #223254;--card: #172A46;--panel2: #223254;--text: #d4dce8;--muted: #7e92a8;--primary: #2f80ed;--err: #f2707e;--gold: #f0c26b;--border: #2e4460;--line2: #3a4c73;--section-bg: rgba(255,255,255,.04);--section-head-bg: rgba(255,255,255,.1);--key-bg: #243244;--key-border: #34455c;--header-bg: #203764;--hero-a: #2f80ed;--hero-b: #56ccf2;--bub-bg: #2e4066;--bub-ink: #edf2fc;--bub-line: #141f3c;--perch1: #6e5a44;--perch2: #5e8a6b;--perch3: #8a6b4f;--env-hillF: #26375c;--env-hillN: #2c3f66;--env-grass: #2e4a73;--env-cloud: #8fa3c2;--env-cloudOp: .14;--env-star: 1;--env-sun: 0;--env-moon: 1;--charFilter: brightness(1.07) saturate(1.05)}*{margin:0;padding:0;box-sizing:border-box}html{scrollbar-gutter:stable;overflow-y:scroll;scroll-padding-top:72px;overflow-x:clip}body{font-family:Segoe UI,Inter,system-ui,sans-serif;background:linear-gradient(180deg,var(--bg),var(--bg2));color:var(--text);line-height:1.6;transition:background .25s,color .25s}.header{background:var(--header-bg);color:#fff;position:sticky;top:0;z-index:102}.header-inner{max-width:1440px;margin:0 auto;padding:12px 28px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px}.logo{font-size:1.35rem;font-weight:800;letter-spacing:-.5px;white-space:nowrap;justify-self:start}.logo 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var(--key-border);border-radius:6px;background:var(--key-bg);color:var(--text);font:600 .82rem/1.4 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.lesson-fingers{margin:0;padding-left:18px;color:var(--muted);font-size:.9rem}.lesson-fingers li{margin:2px 0}.lesson-count{font-weight:400;letter-spacing:0;text-transform:none}.lesson-links{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:16px;font-weight:600}.lesson-links a,.lesson-nav a{color:var(--primary)}.lesson-nav{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:14px;padding-top:12px;border-top:1px solid var(--border);font-size:.9rem}@media(max-width:640px){.lesson-overview{padding:14px 16px}}.games-view,body.dark .games-view{background:transparent}body.on-kids-game #gameHub,body.on-kids-game #proGames,body.on-kids-game #gamesHero{display:none!important}body.dark #ghSections h3{color:#e8f1fb!important}body.dark .tq-mode-card{background:var(--card);box-shadow:0 4px 14px #00000073,0 1px 3px #0006}body.dark .tq-mode-card:hover{background:#1e3858}body.dark .tq-mode-name{color:#e8f1fb}body.dark .tq-mode-desc{color:#8ba1bd}body.dark .tq-mode-progress{border-top-color:#ffffff24}body.dark .tq-mode-stars-label{color:#8ba1bd}body.dark .tq-difficulty-bar{background:var(--card);box-shadow:0 4px 14px #00000073,0 1px 3px #0006}body.dark .tq-difficulty-label{color:#e8f1fb}body.dark .tq-difficulty-btn{background:#ffffff0f;border-color:#ffffff29;color:#dbe6f5}body.dark .tq-difficulty-btn:hover{border-color:#3b82f6;color:#7de3f0}body.dark .tq-difficulty-hint{color:#8ba1bd}body.dark .tq-ach-badge{background:var(--card);box-shadow:0 4px 14px #00000073,0 1px 3px #0006}body.dark .tq-btn-ghost{background:#ffffff14;border-color:#fff3;color:#dbe6f5}body.dark .tq-btn-ghost:hover{color:#7de3f0;border-color:#3b82f6;background:#ffffff1f}body.dark .tq-logo-text p{color:#8ba1bd}#pageMsg{position:fixed;bottom:88px;right:24px;z-index:101;max-width:320px;border-radius:10px;display:none;align-items:flex-start;gap:8px;font-size:.78rem;color:#fff;background:#203764;padding:10px 14px;line-height:1.4;box-shadow:0 2px 12px #00000040;max-height:40vh;overflow-y:auto;height:auto}#pageMsg:not(:empty){display:flex}body.lesson-active #pageMsg{bottom:62px;top:auto}body.lesson-active .header{display:none!important}.pageMsg-toggle{position:fixed;bottom:20px;right:20px;z-index:102;width:32px;height:32px;border-radius:50%;border:none;background:#203764;color:#fff;font-size:1.1rem;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 10px #00000040}.pageMsg-toggle:hover{background:#1a2e5a}@media(max-width:760px){#pageMsg{left:16px;right:16px;bottom:76px;max-width:none}}#pageMsg .msg-icon{flex-shrink:0;font-size:1rem;margin-top:1px}#pageMsg b{color:#5eead4}.page-wrap{max-width:1100px;margin:0 auto;padding:34px 24px 60px}.hero{background:linear-gradient(135deg,var(--hero-a) 0%,var(--hero-b) 100%);color:#fff;text-align:center;padding:32px 24px 24px}#gamesHero{padding-bottom:12px}.hero h1,.hero p.h1{font-size:1.8rem;font-weight:800;max-width:700px;margin:0 auto 8px}.hero h1 em,.hero p.h1 em{font-style:normal;color:#d7f0ff}.hero p{max-width:560px;margin:0 auto 16px;opacity:.95;font-size:.95rem}.progress-strip{text-align:center;padding:12px;color:var(--muted);font-weight:600;background:var(--card);border-bottom:1px solid var(--border);font-size:.95rem}.progress-strip .dot{margin:0 10px}.level-track{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:10px 14px;padding:10px 14px 14px;background:var(--card);border-bottom:1px solid var(--border)}.level-track:empty{display:none}.level-track .lt-item{display:flex;flex-direction:column;align-items:center;gap:4px;width:56px;opacity:.5}.level-track .lt-item.active,.level-track .lt-item.done{opacity:1}.level-track 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40px;display:inline-flex;align-items:center;justify-content:center;line-height:1.2;text-align:center}.btn.ghost{background:transparent;border:1px solid var(--border);color:var(--muted);padding:9px 24px;min-width:100px}.btn.ghost:hover{border-color:var(--primary);color:var(--primary)}.btn.ghost.small{padding:6px 16px;min-width:0}.view-tabs{display:inline-flex;gap:4px;background:var(--panel2);border:1px solid var(--border);border-radius:999px;padding:4px}.view-tab{border:none;background:transparent;color:var(--muted);font:inherit;font-weight:700;font-size:.85rem;border-radius:999px;padding:6px 16px;cursor:pointer}.view-tab:hover{color:var(--text)}.view-tab.active{background:var(--primary);color:#fff}.btn.primary.small{padding:8px 20px;font-size:.88rem}.btn.primary.small:visited{color:#fff}a.btn.primary.small,a.btn.primary.small:visited,a.btn.primary.small:hover{text-decoration:none}.btn.hero-seg.ghost{background:#ffffff29;border:2px solid rgba(255,255,255,.8);color:#fff}.btn.hero-seg.ghost:hover{background:#ffffff47;border-color:#fff;color:#fff;transform:translateY(-1px)}#exitBtn{background:var(--primary);color:#fff;border-color:var(--primary);margin-left:64px}#exitBtn:hover{background:var(--primary-dark);border-color:var(--primary-dark)}#exitBtn.pulse-close{animation:pulseClose .5s ease 2;box-shadow:0 0 0 4px #2f80ed59}@keyframes pulseClose{0%,to{transform:scale(1)}50%{transform:scale(1.07)}}.btn.secondary{background:var(--border);color:var(--text);padding:11px 28px}.btn.secondary:hover{background:var(--muted);color:#fff}.material-symbols-rounded{font-family:Material Symbols Rounded;font-weight:400;font-style:normal;font-size:24px;line-height:1;letter-spacing:normal;text-transform:none;display:inline-block;white-space:nowrap;word-wrap:normal;direction:ltr;-webkit-font-smoothing:antialiased}.lessons{max-width:1100px;margin:0 auto;padding:36px 24px 10px}.lesson-group{margin-bottom:40px}.lesson-group h2{font-size:1.4rem;margin-bottom:2px;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}.group-icon{font-size:1.3rem}.section-subtitle{font-size:.82rem;font-weight:500;color:var(--muted)}.lesson-group .sub{color:var(--muted);font-size:.92rem;margin-bottom:0}.lesson-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}@media(max-width:760px){.lesson-grid{grid-template-columns:repeat(3,1fr)}.lesson-grid>*{min-width:0}#lessons .lesson-num{font-size:1.2rem;top:12px;left:12px;opacity:.65}#lessons .lesson-lock{top:12px;right:12px}#lessons .lesson-lock .material-symbols-rounded{font-size:17px}#lessons .lesson-done-badge{top:12px;right:12px;width:22px;height:22px}#lessons .lesson-done-badge .material-symbols-rounded{font-size:15px}}@media(max-width:520px){.lesson-grid{grid-template-columns:repeat(2,1fr)}}.lesson-group{position:relative;padding-left:18px;margin-left:8px;scroll-margin-top:90px}.lesson-group h2 .lvl-badge{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:22px;padding:0 8px;border-radius:999px;font-size:.68rem;font-weight:800;letter-spacing:.6px;background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;margin-left:8px}.lesson-card.seq-pulse{animation:seqPulse 1.2s ease;border-color:#3b82f6!important}@keyframes seqPulse{0%,to{transform:scale(1);box-shadow:0 0 #3b82f600}50%{transform:scale(1.03);box-shadow:0 0 0 8px #3b82f640}}.lesson-card[data-level="1"]{border-left:3px solid #10B981}.lesson-card[data-level="2"]{border-left:3px solid #3B82F6}.lesson-card[data-level="3"]{border-left:3px solid #F59E0B}.lesson-card[data-level="4"]{border-left:3px solid #8B5CF6}.lesson-card[data-level="5"]{border-left:3px solid #EF4444}.lesson-card[data-level="6"]{border-left:3px solid #EC4899}.lesson-card[data-level="7"]{border-left:3px solid #6366F1}.lesson-card[data-level="8"]{border-left:3px solid #14B8A6}.lesson-card[data-level="9"]{border-left:3px solid #F97316}#lessons .lesson-card[data-level]{border-left:1px solid var(--border)}.lesson-card[data-kind=intro]{border-top:3px solid #6366F1}.lesson-card[data-kind=learn]{border-top:3px solid #3B82F6}.lesson-card[data-kind=practice]{border-top:3px solid #F59E0B}.lesson-card[data-kind=play]{border-top:3px solid #A855F7}#lessons .lesson-card[data-kind]{border-top:1px solid var(--border)}.kind-pill{font-size:.6rem;font-weight:800;letter-spacing:.8px;padding:2px 10px;border-radius:999px;white-space:nowrap;align-self:center;margin:8px auto 0}.kind-intro{background:#e0e7ff;color:#3730a3}.kind-learn{background:#dbeafe;color:#1d4ed8}.kind-practice{background:#fef3c7;color:#92400e}.kind-play{background:#e9d5ff;color:#6b21a8}body.dark .kind-intro{background:#6366f140;color:#c7d2fe}body.dark .kind-learn{background:#3b82f640;color:#bfdbfe}body.dark .kind-practice{background:#f59e0b40;color:#fde68a}body.dark .kind-play{background:#a855f740;color:#e9d5ff}.play-game{font-size:.68rem;color:var(--muted);margin-top:4px;font-weight:700}.lesson-card .lesson-name{margin-bottom:2px}.lesson-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px 16px 16px;text-align:center;cursor:pointer;transition:transform .2s,box-shadow .2s,border-color .2s;position:relative;min-height:170px;display:flex;flex-direction:column;align-items:center;overflow:hidden}body:not(.dark) .lesson-card{box-shadow:0 2px 10px #00000014}body:not(.dark) .lesson-card:hover{transform:translateY(-4px) scale(1.02);box-shadow:0 8px 24px #2f80ed2e,0 0 0 1px #2f80ed40;border-color:#2f80ed66}body.dark .lesson-card:hover{transform:translateY(-4px) scale(1.02);box-shadow:0 0 15px #6db3ff40,0 0 30px #6db3ff1a,0 8px 20px #0000004d;border-color:#6db3ff73}a.lesson-card,a.lesson-card:visited,a.lesson-card:hover,a.lesson-card:active{color:inherit;text-decoration:none}.lesson-num{position:absolute;top:14px;left:14px;font-weight:800;color:var(--text);font-size:1.6rem;opacity:.5;line-height:1}.lesson-lock{position:absolute;top:14px;right:14px;opacity:.45}.lesson-lock .material-symbols-rounded{font-size:20px;font-variation-settings:"FILL" 1,"wght" 400,"GRAD" 0,"opsz" 20}.lesson-icon{font-size:50px;font-variation-settings:"FILL" 1,"wght" 500,"GRAD" 0,"opsz" 48;line-height:1}.lesson-icon-flip{transform:scaleX(-1)}body:not(.dark) .lesson-icon{color:#4a5e78}body.dark .lesson-icon{color:#8fa4b8}.lesson-keys{font-weight:800;font-size:1.6rem;letter-spacing:4px;color:var(--primary);line-height:1}.lesson-center{flex:1;display:flex;align-items:center;justify-content:center}.lesson-name{font-size:.82rem;color:var(--text);line-height:1.3;opacity:.75;transition:opacity .2s,font-weight .2s}.lesson-card:hover .lesson-name{opacity:1;font-weight:700}.lesson-done-badge{position:absolute;top:14px;right:14px;width:24px;height:24px;border-radius:50%;background:#22c55e;color:#fff;display:flex;align-items:center;justify-content:center}.lesson-done-badge .material-symbols-rounded{font-size:16px;font-variation-settings:"FILL" 1,"wght" 700,"GRAD" 0,"opsz" 20}#lessons .lesson-card{min-height:196px;padding:14px 12px 12px}#lessons .kind-pill{order:1;margin:0 auto 8px}#lessons .play-game{order:3}#lessons .lesson-icon{font-size:60px}#lessons .lesson-keys{font-size:1.75rem;letter-spacing:3px}#lessons .lesson-name{align-self:stretch;order:2;margin:8px -12px -12px;padding:9px 10px 11px;border-top:2px solid var(--border);background:var(--bg);border-radius:0 0 12px 12px;min-height:calc(2.6em + 22px);display:flex;align-items:center;justify-content:center;text-align:center}#lessons .lesson-card[data-level="1"] .lesson-name{border-top-color:#10b981}#lessons .lesson-card[data-level="2"] .lesson-name{border-top-color:#3b82f6}#lessons .lesson-card[data-level="3"] .lesson-name{border-top-color:#f59e0b}#lessons .lesson-card[data-level="4"] .lesson-name{border-top-color:#8b5cf6}#lessons .lesson-card[data-level="5"] .lesson-name{border-top-color:#ef4444}#lessons .lesson-card[data-level="6"] .lesson-name{border-top-color:#ec4899}#lessons .lesson-card[data-level="7"] .lesson-name{border-top-color:#6366f1}#lessons .lesson-card[data-level="8"] .lesson-name{border-top-color:#14b8a6}#lessons .lesson-card[data-level="9"] .lesson-name{border-top-color:#f97316}@media(min-width:761px){#lessons .kind-pill{font-size:.55rem;padding:1px 8px}}.footer{text-align:center;padding:26px;color:var(--muted);font-size:.88rem}.player{display:none;width:100%;min-height:70vh;background:var(--bg);flex-direction:column;scroll-margin-top:78px}.player.open{display:flex}.player-top{display:flex;align-items:center;justify-content:space-between;padding:14px 20px 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.gdiff-btn{min-width:46px}a.tq-mode-card{text-decoration:none;color:inherit}.kg-hero{display:flex;align-items:center;gap:18px;margin:6px 0 14px}.kg-hero .tq-mode-icon{flex:0 0 auto;margin-top:0}@media(max-width:560px){.kg-hero{flex-direction:column;text-align:center}}.gh-diff-btn{flex:1;padding:12px 8px;border:2px solid var(--border);border-radius:12px;background:var(--card);cursor:pointer;font-family:inherit;transition:all .15s;text-align:center}.gh-diff-btn:hover{border-color:var(--primary);transform:translateY(-2px)}.gh-diff-btn .diff-label{display:block;font-weight:700;font-size:.95rem;color:var(--text);margin-bottom:2px}.gh-diff-btn .diff-desc{display:block;font-size:.72rem;color:var(--muted)}.gh-diff-btn.easy .diff-label{color:#34a853}.gh-diff-btn.medium .diff-label{color:#f9ab00}.gh-diff-btn.hard .diff-label{color:#ea4335}.gh-diff-cancel{margin-top:4px}.game-stage{position:relative;width:min(780px,94vw);margin:5px 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var(--border);border-radius:14px;padding:20px 22px;margin-bottom:20px}.chart-card h3{margin-bottom:12px;font-size:1.05rem}.chart-card canvas{width:100%;height:auto}.chart-empty{color:var(--muted);font-size:.9rem;text-align:center;padding:20px 0}.weak-wrap{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px 22px}.weak-wrap h3{margin-bottom:14px;font-size:1.05rem}.weak-keys{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}.weak-key{background:#f565651f;color:var(--red);border:1px solid rgba(245,101,101,.3);border-radius:10px;padding:6px 14px;font-weight:800;font-size:1.15rem;display:flex;flex-direction:column;align-items:center;line-height:1.2}.weak-key small{font-size:.68rem;font-weight:600}.badge-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}.badge{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:22px 16px;text-align:center;position:relative;transition:transform .2s,box-shadow .2s,border-color .2s;cursor:default}body:not(.dark) .badge:hover{transform:translateY(-3px);box-shadow:0 6px 20px #2f80ed26,0 0 0 1px #2f80ed33}body.dark .badge:hover{transform:translateY(-3px);box-shadow:0 0 12px #6db3ff33,0 0 24px #6db3ff14}.badge.earned{border-color:#f5a623;box-shadow:0 6px 18px #f5a6232e}body:not(.dark) .badge.earned:hover{box-shadow:0 6px 20px #f5a62340,0 0 0 1px #f5a6234d}body.dark .badge.earned:hover{box-shadow:0 0 14px #f5a6234d,0 0 28px #f5a6231f}.badge-corner{position:absolute;top:8px;right:10px;font-size:1rem;line-height:1}.badge:not(.earned) .badge-corner{color:var(--muted);opacity:.6}.badge.earned .badge-corner{color:#22c55e}.badge-icon{font-size:2.4rem;margin-bottom:8px}.badge-name{font-weight:700;margin-bottom:4px}.badge-desc{font-size:.82rem;color:var(--muted)}body:has(.modal.open){overflow:hidden}body:has(.player.open){overflow:hidden}body:has(.player.open):has(.lesson-overview){overflow:auto}body:has(#confirmModal.open){overflow:hidden}.modal{display:none;position:fixed;inset:0;background:#0f19288c;z-index:200;align-items:center;justify-content:center;padding:20px}.modal.open{display:flex}.modal-box{background:var(--card);border-radius:18px;padding:20px 26px;max-width:440px;width:100%;max-height:calc(100vh - 36px);overflow-y:auto;box-shadow:0 24px 60px #0000004d;animation:popIn .22s ease}#settingsModal .modal-box{padding:16px 24px;max-width:560px;display:flex;flex-direction:column;max-height:80vh}#settingsModal .settings-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;flex-shrink:0}#settingsModal .settings-top h2{margin:0;font-size:1.2rem}#settingsModal .settings-close{font-size:1.1rem;width:32px;height:32px;border-radius:8px;background:var(--border);color:var(--text);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center}#settingsModal .settings-close:hover{background:var(--muted)}#settingsModal .settings-scroll{flex:1;overflow-y:auto;min-height:0}#settingsModal .settings-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:14px;padding-top:10px;border-top:1px solid var(--border);flex-shrink:0}#settingsModal .settings-bottom .btn.ghost{background:var(--border);color:var(--text);padding:8px 14px;border-radius:8px;font-size:.78rem}#settingsModal .settings-bottom .btn.ghost:hover{background:var(--muted)}#settingsModal .set-section{margin-bottom:10px;padding:0;border-radius:10px;overflow:visible;background:var(--section-bg, rgba(0,0,0,.03))}#settingsModal .set-section-head{display:flex;align-items:center;gap:8px;padding:8px 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scale(.9);transform-origin:14% 100%;transition:opacity .2s,transform .24s;pointer-events:none;z-index:8}.char .bub.on{opacity:1;transform:none}.char .bub:after{content:"";position:absolute;left:15px;bottom:-8px;width:12px;height:12px;background:var(--bub-bg);border-right:2.5px solid var(--bub-line);border-bottom:2.5px solid var(--bub-line);transform:rotate(45deg)}.char-bunny .bub{left:auto;right:0;transform-origin:86% 100%}.char-bunny .bub:after{left:auto;right:15px;border:none;border-left:2.5px solid var(--bub-line);border-top:2.5px solid var(--bub-line)}.char-owl .bub{bottom:auto;top:102%;transform:translateY(-6px) scale(.9);transform-origin:14% 0%}.char-owl .bub.on{transform:none}.char-owl .bub:after{bottom:auto;top:-8px;border:none;border-left:2.5px solid var(--bub-line);border-top:2.5px solid var(--bub-line)}.char-snail .bub{position:fixed;left:14px;bottom:78px;max-width:160px}.zz{position:absolute;font-weight:900;font-style:italic;color:var(--muted);font-size:14px}.char-snail .cfx{position:absolute;inset:0;pointer-events:none;overflow:visible}.gj-more .gj-note{margin-top:12px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}@media(max-width:1400px){.stat-pill.stat-rank{min-width:0}.stat-rank .rank-name{display:none}}@media(max-width:1200px){#totalPoints{display:none}.header .header-greeting{width:130px;min-width:130px;max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}@media(max-width:1100px){.header-greeting{display:none}}@media(max-width:1280px){.header-inner{gap:16px;padding-left:20px;padding-right:20px}.main-nav{gap:2px}.main-nav a{padding:6px 10px}}@media(max-width:1024px){#totalStars,#streakPill{display:none}}