*{box-sizing:border-box}html,body{color:#17213a;background:#eef3fb;margin:0;padding:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input{font:inherit}.app-shell{background:#fff;width:100%;min-height:100vh}.app-content{width:100%;padding:24px 5vw 110px}.header,.hero,.daily-card,.continue-card,.quick-grid,.horizontal-scroll,.screen-heading,.chips,.game-list,.play-grid,.feature-panel,.arena-grid,.profile-top,.stats-grid,.badges,.section-title{max-width:1440px;margin-left:auto;margin-right:auto}.header{justify-content:space-between;align-items:center;margin-bottom:28px;display:flex}.brand{align-items:center;gap:9px;font-size:21px;font-weight:850;display:flex}.brand-mark{color:#fff;background:#246bfd;border-radius:12px;place-items:center;width:36px;height:36px;display:grid}.brand span:last-child span{color:#5b5ce2}.header-actions{gap:8px;display:flex}.header-actions button{background:#f3f6fb;border:0;border-radius:50%;width:38px;height:38px}.avatar{color:#5b44c9;font-weight:800}.hero{padding:8px 2px 22px}.eyebrow{letter-spacing:1.1px;color:#66728b;margin:0 0 7px;font-size:11px;font-weight:800}.hero h1,.screen-heading h1{letter-spacing:-1px;margin:0;font-size:clamp(30px,3.4vw,52px);line-height:1.1}.hero-stats{gap:10px;margin-top:15px;display:flex}.hero-stats span{background:#f4f7fb;border-radius:10px;padding:7px 10px;font-size:12px;font-weight:700}.daily-card{background:linear-gradient(135deg,#eef5ff,#f5f0ff);border:1px solid #e4eafa;border-radius:22px;padding:22px}.section-row,.section-title{justify-content:space-between;align-items:center;display:flex}.section-row h2,.section-title h2{margin:0;font-size:18px}.section-row>strong{color:#246bfd;font-size:20px}.challenge-grid{grid-template-columns:repeat(5,1fr);gap:8px;margin:17px 0;display:grid}.challenge-grid button{color:#9aa6ba;background:#fff;border:0;border-radius:12px;padding:11px 3px;font-size:18px}.challenge-grid button span{margin-top:4px;font-size:9px;font-weight:700;display:block}.challenge-grid .done{color:#fff;background:#246bfd}.progress,.mini-progress{background:#dde5f2;border-radius:99px;height:7px;overflow:hidden}.progress i,.mini-progress i{border-radius:inherit;background:#246bfd;height:100%;display:block}.section-title{margin:27px auto 12px}.section-title button{color:#246bfd;background:0 0;border:0;font-size:13px;font-weight:750}.continue-card,.list-card{border:1px solid #edf0f5;border-radius:18px;align-items:center;gap:12px;padding:13px;display:flex}.game-icon{background:#f4f6fb;border-radius:15px;place-items:center;width:48px;height:48px;font-size:25px;display:grid}.continue-card h3,.list-card h3,.game-card h3{margin:0;font-size:15px}.continue-card p,.list-card p,.game-card p{color:#7b879b;margin:5px 0;font-size:12px}.continue-card>div:nth-child(2){flex:1}.mini-progress{width:130px;height:5px}.mini-progress i{width:62%}.circle-btn{color:#fff;background:#246bfd;border:0;border-radius:50%;width:34px;height:34px}.quick-grid{grid-template-columns:repeat(6,1fr);gap:9px;display:grid}.quick-grid button,.play-choice{background:#fff;border:1px solid #edf0f5;border-radius:15px}.quick-grid button{padding:15px 5px;font-size:12px;font-weight:750}.horizontal-scroll{grid-template-columns:repeat(4,1fr);gap:12px;padding-bottom:4px;display:grid;overflow:visible}.game-card{border:1px solid #edf0f5;border-radius:19px;min-width:0;padding:10px}.cover{background:linear-gradient(135deg,#dce9ff,#eee8ff);border-radius:13px;place-items:center;height:140px;font-size:42px;display:grid;position:relative}.cover b{background:#fff;border-radius:6px;padding:4px 6px;font-size:8px;position:absolute;top:8px;left:8px}.game-card h3{margin-top:10px}.game-card button,.feature-panel button{color:#246bfd;background:0 0;border:0;padding:0;font-size:12px;font-weight:800}.screen-heading{padding:8px 0 20px}.screen-heading.centered{text-align:center;padding:24px 8px}.screen-heading input{background:#f8faff;border:1px solid #e3e9f2;border-radius:14px;width:100%;margin-top:18px;padding:14px}.chips{gap:8px;margin-bottom:18px;display:flex;overflow:auto}.chips button{white-space:nowrap;background:#fff;border:1px solid #e2e7ef;border-radius:99px;padding:8px 13px;font-size:12px}.chips .selected{color:#fff;background:#246bfd;border-color:#246bfd}.game-list,.play-grid{gap:10px;display:grid}.list-card button{background:0 0;border:0;margin-left:auto;font-size:20px}.play-grid{grid-template-columns:repeat(3,1fr)}.play-choice{text-align:left;border-radius:19px;align-items:center;gap:14px;padding:15px;display:flex}.play-choice>span{width:42px;font-size:28px}.play-choice div{flex:1}.play-choice h3{margin:0;font-size:15px}.play-choice p{color:#7b879b;margin:4px 0 0;font-size:12px}.play-choice b{color:#246bfd}.feature-panel{color:#fff;background:linear-gradient(135deg,#1f63f3,#6c58d8);border-radius:23px;gap:16px;padding:20px;display:flex}.feature-panel>span{font-size:44px}.feature-panel .eyebrow,.feature-panel p{color:#dce7ff}.feature-panel h2{margin:2px 0 5px}.feature-panel button{color:#fff;margin-top:8px}.arena-grid{grid-template-columns:repeat(4,1fr);gap:10px;display:grid}.arena-grid button{text-align:left;background:#fff;border:1px solid #e9edf4;border-radius:19px;min-height:125px;padding:17px;font-size:25px}.arena-grid b,.arena-grid small{display:block}.arena-grid b{margin-top:12px;font-size:15px}.arena-grid small{color:#8490a4;margin-top:4px;font-size:11px}.profile-top{text-align:center;padding:10px 10px 20px}.big-avatar{color:#5b44c9;background:#e9e6ff;border-radius:28px;place-items:center;width:78px;height:78px;margin:auto;font-size:28px;font-weight:850;display:grid}.profile-top h1{margin:10px 0 2px}.profile-top>p{color:#7c8799;margin:0;font-size:13px}.xp-box{text-align:left;background:#f6f8fc;border-radius:17px;margin-top:20px;padding:15px}.xp-box b{display:block}.xp-box span{color:#788499;margin:5px 0 9px;font-size:12px;display:block}.stats-grid{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}.stats-grid div{text-align:center;background:#f7f9fc;border-radius:14px;padding:14px 4px}.stats-grid b,.stats-grid span{display:block}.stats-grid b{font-size:16px}.stats-grid span{color:#7b879b;margin-top:4px;font-size:10px}.badges{gap:10px;display:flex}.badges span{background:#fff7dc;border:1px solid #f2e6b8;border-radius:17px;place-items:center;width:54px;height:54px;font-size:25px;display:grid}.auth-shell{background:radial-gradient(circle at top,#f7faff 0,#eef3fb 55%,#e7eef9 100%);place-items:center;min-height:100vh;padding:28px;display:grid}.auth-card{background:#fff;border:1px solid #e8edf5;border-radius:28px;width:min(460px,100%);padding:34px;box-shadow:0 24px 70px #2542721f}.auth-brand{align-items:center;gap:9px;margin-bottom:34px;font-size:22px;font-weight:850;display:flex}.auth-brand>span:last-child span{color:#5b5ce2}.auth-card h1{letter-spacing:-.8px;margin:0 0 10px;font-size:34px;line-height:1.1}.auth-copy{color:#718097;margin:0 0 24px;font-size:14px;line-height:1.55}.auth-form{gap:16px;display:grid}.auth-form label{color:#55627a;gap:7px;font-size:12px;font-weight:800;display:grid}.auth-form input{background:#fbfcff;border:1px solid #dce4ef;border-radius:13px;outline:none;width:100%;padding:13px 14px}.auth-form input:focus{border-color:#7ea7ff;box-shadow:0 0 0 4px #edf3ff}.primary-action{color:#fff;cursor:pointer;background:#246bfd;border:0;border-radius:13px;padding:13px 16px;font-weight:800}.primary-action:disabled{opacity:.65;cursor:wait}.auth-message{color:#56647b;background:#f4f7fb;border-radius:12px;margin:15px 0 0;padding:12px 13px;font-size:12px}.switch-auth{color:#246bfd;cursor:pointer;background:0 0;border:0;margin-top:18px;font-size:12px;font-weight:750}.quiz-shell{background:#f7f9fc;min-height:100vh;padding:28px 5vw 40px}.quiz-header,.quiz-card,.quiz-footer,.result-card{max-width:920px;margin-left:auto;margin-right:auto}.quiz-header{align-items:center;gap:16px;display:flex}.quiz-header>a{color:#17213a;background:#fff;border:1px solid #e7edf5;border-radius:12px;place-items:center;width:40px;height:40px;font-size:22px;text-decoration:none;display:grid}.quiz-header>div{flex:1;display:grid}.quiz-header>div span{letter-spacing:1px;color:#728099;font-size:10px;font-weight:850}.quiz-header>div strong{font-size:15px}.quiz-xp{color:#246bfd;background:#eaf1ff;border-radius:10px;padding:8px 10px;font-size:12px;font-weight:800}.quiz-progress{background:#e0e7f1;border-radius:99px;max-width:920px;height:8px;margin:18px auto 26px;overflow:hidden}.quiz-progress i{border-radius:inherit;background:#246bfd;height:100%;display:block}.quiz-card{background:#fff;border:1px solid #e7edf5;border-radius:28px;padding:32px;box-shadow:0 12px 40px #304c760f}.quiz-card h1{letter-spacing:-1px;margin:0 0 28px;font-size:clamp(28px,4vw,44px);line-height:1.15}.option-list{gap:12px;display:grid}.quiz-option{text-align:left;color:#1c2940;cursor:pointer;background:#fff;border:1px solid #dfe6ef;border-radius:16px;align-items:center;gap:13px;width:100%;padding:16px;font-weight:700;display:flex}.quiz-option>span{color:#68758a;background:#f1f4f8;border-radius:10px;place-items:center;width:34px;height:34px;font-size:12px;display:grid}.quiz-option b{margin-left:auto}.quiz-option.correct{background:#effaf3;border-color:#60bf86}.quiz-option.wrong{background:#fff1f1;border-color:#ee8b8b}.quiz-option.dim{opacity:.65}.quiz-footer{color:#738098;justify-content:space-between;align-items:center;gap:14px;margin-top:18px;font-size:12px;display:flex}.result-card{text-align:center;background:#fff;border:1px solid #e7edf5;border-radius:30px;margin-top:8vh;padding:42px;box-shadow:0 20px 70px #304c7614}.result-icon{font-size:52px}.result-score{margin:28px 0 18px}.result-score strong{font-size:64px;line-height:1}.result-score span{color:#728099;font-size:18px}.result-meta{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.result-meta span{background:#f4f7fb;border-radius:10px;padding:9px 12px;font-size:12px;font-weight:750}.result-actions{gap:12px;max-width:260px;margin:28px auto 0;display:grid}.result-actions a{color:#246bfd;font-size:13px;font-weight:800;text-decoration:none}.bottom-nav{z-index:5;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#fffffff5;border-top:1px solid #edf0f5;justify-content:center;align-items:center;gap:clamp(12px,5vw,70px);width:100%;height:76px;padding:7px 18px;display:flex;position:fixed;bottom:0;left:0}.nav-item{color:#8d98aa;background:0 0;border:0;place-items:center;gap:2px;min-width:55px;display:grid}.nav-item span{font-size:20px}.nav-item small{font-size:10px;font-weight:700}.nav-item.active{color:#246bfd}.nav-play{color:#fff;background:#246bfd;border:0;border-radius:18px;width:52px;height:52px;font-size:19px;box-shadow:0 8px 20px #246bfd47}.studio-shell{background:#f7f9fc;min-height:100vh;padding:32px 5vw 70px}.studio-header,.studio-create,.studio-layout{max-width:1440px;margin:0 auto}.studio-header{justify-content:space-between;align-items:flex-end;gap:20px;padding-bottom:28px;display:flex}.studio-header h1{letter-spacing:-1.4px;margin:0 0 7px;font-size:clamp(32px,4vw,48px)}.studio-header p:not(.eyebrow){color:#77849a;margin:0}.studio-header>a{color:#246bfd;font-size:13px;font-weight:800;text-decoration:none}.studio-create{background:#fff;border:1px solid #e4eaf3;border-radius:24px;margin-bottom:18px;padding:22px 24px;box-shadow:0 10px 35px #304c760d}.studio-create h2{margin:0 0 5px;font-size:20px}.studio-create p:not(.eyebrow){color:#7b879b;margin:0;font-size:13px}.create-row{gap:10px;margin-top:18px;display:flex}.create-row input{background:#fbfcff;border:1px solid #dce4ef;border-radius:13px;outline:none;flex:1;min-width:0;padding:13px 14px}.create-row input:focus,.question-input:focus,.option-row input:focus{border-color:#7ea7ff;box-shadow:0 0 0 4px #edf3ff}.studio-layout{grid-template-columns:280px minmax(0,1fr);gap:18px;display:grid}.studio-sidebar,.studio-editor{background:#fff;border:1px solid #e4eaf3;border-radius:24px;box-shadow:0 10px 35px #304c760a}.studio-sidebar{padding:18px}.studio-sidebar .section-title{margin:0 0 10px}.studio-sidebar .section-title span{color:#68758a;background:#eef3fb;border-radius:8px;padding:5px 8px;font-size:11px;font-weight:800}.studio-game{text-align:left;cursor:pointer;background:#f7f9fc;border:1px solid #0000;border-radius:14px;width:100%;margin-top:8px;padding:12px;display:grid}.studio-game strong{color:#26334b;white-space:nowrap;text-overflow:ellipsis;font-size:13px;overflow:hidden}.studio-game small{color:#7d899c;text-transform:capitalize;margin-top:4px;font-size:10px}.studio-game.active{background:#eef4ff;border-color:#cfe0ff}.studio-game.active strong{color:#246bfd}.studio-editor{padding:24px}.editor-header{border-bottom:1px solid #edf0f5;justify-content:space-between;align-items:center;gap:15px;padding-bottom:18px;display:flex}.editor-header h2{letter-spacing:-.5px;margin:0;font-size:24px}.editor-actions{gap:8px;display:flex}.editor-actions>button:not(.primary-action){color:#45536b;background:#fff;border:1px solid #dce4ef;border-radius:12px;padding:11px 15px;font-weight:800}.question-editor{border-bottom:1px solid #edf0f5;grid-template-columns:38px minmax(0,1fr);gap:14px;padding:22px 0;display:grid}.question-number{color:#246bfd;background:#edf3ff;border-radius:11px;place-items:center;width:34px;height:34px;font-size:12px;font-weight:850;display:grid}.question-body{min-width:0}.question-input{background:#fbfcff;border:1px solid #dce4ef;border-radius:13px;outline:none;width:100%;padding:13px 14px;font-size:15px;font-weight:750}.option-editor{gap:8px;margin-top:12px;display:grid}.option-row{align-items:center;gap:9px;display:flex}.option-row input{background:#fff;border:1px solid #e1e7ef;border-radius:11px;outline:none;flex:1;min-width:0;padding:10px 12px;font-size:13px}.option-row span{color:#8b97a9;order:-1;width:24px;font-size:10px;font-weight:800}.correct-toggle{color:#8a96a9;cursor:pointer;background:#fff;border:1px solid #dce4ef;border-radius:9px;width:30px;height:30px;font-weight:900}.option-row.correct .correct-toggle{color:#2e9b5b;background:#e9f8ef;border-color:#72c394}.option-row.correct input{background:#f5fcf7;border-color:#9bd2af}.add-question{color:#246bfd;cursor:pointer;background:#f9fbff;border:1px dashed #b8c7dc;border-radius:14px;width:100%;margin-top:16px;padding:13px;font-weight:850}.add-question:disabled{opacity:.6}.studio-message{color:#2e7d4f;background:#effaf3;border-radius:12px;margin:15px 0 0;padding:12px 13px;font-size:12px;font-weight:700}.empty-studio{text-align:center;padding:90px 20px}.empty-studio h2{margin:0 0 7px}.empty-studio p:not(.eyebrow){color:#7b879b;margin:0}.studio-shell .auth-message{margin-top:15px}@media (max-width:900px){.app-content{padding-left:24px;padding-right:24px}.quick-grid{grid-template-columns:repeat(3,1fr)}.horizontal-scroll,.play-grid,.arena-grid{grid-template-columns:repeat(2,1fr)}.studio-layout{grid-template-columns:1fr}.studio-sidebar{order:2}.studio-editor{order:1}}@media (max-width:560px){.quiz-shell{padding-left:18px;padding-right:18px}.quiz-card{border-radius:23px;padding:22px}.quiz-footer{flex-direction:column;align-items:stretch}.result-card{border-radius:23px;padding:28px 22px}.auth-card{border-radius:23px;padding:24px}.app-content{padding-left:18px;padding-right:18px}.hero h1,.screen-heading h1{font-size:28px}.horizontal-scroll,.play-grid{grid-template-columns:1fr}.arena-grid{grid-template-columns:repeat(2,1fr)}.studio-shell{padding:22px 16px 50px}.studio-header{flex-direction:column;align-items:flex-start}.studio-create{padding:18px}.create-row{flex-direction:column}.studio-editor{padding:18px}.editor-header{flex-direction:column;align-items:flex-start}.editor-actions{width:100%}.editor-actions button{flex:1}.question-editor{grid-template-columns:1fr}.question-number{margin-bottom:-3px}}