:root{
 --kb-blue-dark:#0069b8;--kb-blue:#00a4ff;--kb-blue-soft:#e3f5ff;--kb-blue-bg:#0a94df;
 --kb-yellow:#ffc928;--kb-orange:#ff8a3d;--kb-green:#59c15b;--card:#fff;--text-main:#163148;
 --text-soft:#60758e;--muted:#8aa5c2;--error:#e63946;--success:#20a65a;--radius-xl:26px;
 --radius-lg:20px;--radius-md:14px;--shadow-soft:0 16px 40px rgba(5,61,112,.30);--shadow-small:0 8px 16px rgba(0,0,0,.12);
 font-family:"Nunito","Segoe UI",system-ui,-apple-system,sans-serif;color:var(--text-main);font-synthesis:none;
}
*{box-sizing:border-box}html{min-height:100%;background:#0288d1}body{margin:0;min-height:100vh;background:radial-gradient(circle at top,#35b4ff 0,var(--kb-blue-bg) 45%,#01619b 100%);padding:18px;color:var(--text-main)}
button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.62}a{color:inherit}.skip{position:absolute;top:-100px;left:20px;background:#fff;padding:10px;z-index:30}.skip:focus{top:10px}[hidden]{display:none!important}
.shell{width:100%;max-width:1200px;margin:0 auto;background:linear-gradient(135deg,rgba(255,255,255,.18),rgba(255,255,255,.08));border-radius:32px;overflow:hidden;box-shadow:var(--shadow-soft);border:1px solid rgba(255,255,255,.25);backdrop-filter:blur(12px)}
.topbar{display:flex;align-items:center;gap:20px;padding:10px 24px;background:#263238;color:#f5f5f5;min-height:62px}.brand{display:flex;align-items:center;gap:9px;text-decoration:none;font-size:18px;font-weight:900;letter-spacing:.02em;white-space:nowrap}.brand>span:last-child{color:#ffd449}.brand-icon{font-size:26px}.version{font-size:11px;color:#cfd8dc;border:1px solid #607d8b;border-radius:999px;padding:3px 9px;margin-left:auto}.top-nav{display:flex;align-items:center;gap:5px}.top-nav button{border:0;background:transparent;color:#eceff1;padding:7px 10px;border-radius:999px;font-size:12px;font-weight:700;opacity:.72}.top-nav button:hover,.top-nav button.active{background:rgba(255,255,255,.13);opacity:1}.quiet{border:1px solid #78909c;background:transparent;color:#fff;padding:8px 12px;border-radius:12px;font-weight:800;min-height:40px}.family-logout{margin-left:0}
main{min-height:680px;padding:18px 22px 22px;background:radial-gradient(circle at top,#3ab8ff 0,#0588d4 40%,#0367a4 100%);outline:none}footer{display:flex;justify-content:space-between;color:#e3f2fd;font-size:11px;padding:15px 22px;background:#075f95}
.profile-intro{color:#fff;margin:20px auto 24px;max-width:1020px}.profile-intro .eyebrow{color:#dff4ff}.profile-intro h1{font-size:42px;margin:0 0 8px}.intro{margin:0;color:#d9effc}.profile-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;max-width:1020px;margin:0 auto}.profile-card{border:0;background:rgba(255,255,255,.97);border-radius:24px;padding:28px;text-align:left;display:flex;flex-direction:column;color:var(--text-main);min-height:300px;box-shadow:var(--shadow-small);transition:.15s transform,.15s box-shadow}.profile-card:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(0,0,0,.2)}.avatar{font-size:58px;background:#dff3ff;border-radius:22px;padding:12px 18px;align-self:flex-start}.profile-card.orange .avatar{background:#fff0d7}.profile-name{font-size:32px;font-weight:900;margin-top:18px}.profile-meta,.profile-count{color:var(--text-soft);font-size:13px}.profile-count{margin-top:14px}.profile-enter{margin-top:auto;background:#e3f5ff;border-radius:12px;padding:10px 14px;font-weight:900;color:#075988}.orange .profile-enter{background:#fff0d7;color:#8b4900}.hint{text-align:center;color:#e3f2fd;font-size:12px;margin:20px 0}
.loading-card{max-width:620px;margin:70px auto;background:#fff;border-radius:22px;padding:34px;text-align:center;box-shadow:var(--shadow-soft)}.loading-icon{display:block;font-size:44px;margin-bottom:10px}.loading-card p{color:var(--text-soft);margin:8px 0 0}.error-state{border:2px solid #ffcdd2}
.app-main-grid{display:grid;grid-template-columns:260px 1fr;gap:18px}.side-menu{display:flex;flex-direction:column;gap:12px}.side-profile,.badge-card,.side-tile{background:rgba(255,255,255,.97);border-radius:var(--radius-lg);box-shadow:var(--shadow-small)}.side-profile{padding:11px 12px;display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:center}.profile-avatar{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-size:28px;background:#e3f5ff}.side-profile.orange .profile-avatar{background:#fff0d7}.profile-info h2{font-size:15px;margin:0;font-weight:900}.profile-info p{font-size:10px;color:var(--text-soft);margin:2px 0 0}.xp-badge{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:5px}.xp-main,.coin-main,.xp-level{font-size:10px;font-weight:800;padding:4px 8px;border-radius:999px}.xp-main{background:#e3f5ff;color:#1565c0}.coin-main{background:#fff3e0;color:#e65100}.xp-level{background:#00a85a;color:#fff}
.badge-card{padding:11px 12px}.badge-title{display:flex;align-items:center;gap:6px;font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:#546e7a;margin-bottom:7px}.badge-list{display:flex;flex-direction:column;gap:6px}.badge-empty{font-size:10px;color:#90a4ae}.badge-chip{display:flex;align-items:center;gap:7px;background:#e3f5ff;border-radius:12px;padding:6px 8px;border:1px solid #bbdefb}.badge-chip .emoji{font-size:15px}.badge-text{display:flex;flex-direction:column}.badge-name{font-size:10px;font-weight:900;color:#1565c0}.badge-desc{font-size:9px;color:#607d8b;line-height:1.25}.badge-more{font-size:9px;color:#607d8b;margin:6px 0 0}.side-tile{padding:10px 12px;display:flex;align-items:center;gap:9px}.side-tile-icon{width:38px;height:38px;border-radius:13px;display:grid;place-items:center;background:#ffb74d;font-size:20px}.review-tile .side-tile-icon{background:#a5d6a7}.side-tile-text{font-size:12px;font-weight:900}.side-tile-sub{font-size:10px;color:var(--muted)}.coming-soon{opacity:.66}.main-col{min-width:0;display:flex;flex-direction:column;gap:14px}
.hero-daily{background:#ffce32;border-radius:var(--radius-xl);padding:18px 20px;display:grid;grid-template-columns:1fr auto;align-items:center;box-shadow:var(--shadow-soft);position:relative;overflow:hidden}.hero-daily:after{content:"";position:absolute;right:-38px;top:-36px;width:170px;height:170px;border-radius:50%;background:rgba(255,255,255,.25)}.hero-text{position:relative;z-index:1}.hero-kicker{font-size:10px;font-weight:900;letter-spacing:.14em;color:#a85a00;margin:0 0 3px}.hero-text h1{font-size:27px;line-height:1.12;margin:0 0 5px;color:#b85b00}.hero-text p{font-size:12px;color:#805000;margin:0}.hero-meta{font-size:10px;color:#8b5300;margin-top:6px;font-weight:700}.hero-action{position:relative;z-index:2}.hero-trophy{font-size:46px;filter:drop-shadow(0 4px 6px rgba(199,125,0,.45))}
.controls-panel{margin-top:12px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);border-radius:20px;padding:12px}.controls-row{display:flex;flex-wrap:wrap;gap:8px}.controls-pill{background:#fff;border-radius:999px;padding:6px 10px;display:flex;align-items:center;gap:7px;box-shadow:var(--shadow-small);font-size:11px;color:var(--text-soft)}.control-label{font-size:9px;font-weight:900;text-transform:uppercase;letter-spacing:.06em;color:#37474f}.controls-pill select{border:0;outline:0;background:transparent;font-size:11px;font-weight:800;color:var(--text-main);cursor:pointer}.start-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:10px}.start-btn,.review-btn,.primary{border:0;border-radius:999px;padding:9px 17px;font-size:12px;font-weight:900}.start-btn,.primary{background:linear-gradient(135deg,#ff8a3d,#ff5722);color:#fff;box-shadow:0 6px 14px rgba(204,96,0,.48)}.review-btn{background:#e8f5e9;color:#1b5e20;border:1px solid #a5d6a7}.review-info{font-size:10px;color:#e3f2fd}.start-status{font-size:10px;color:#fff3e0;margin:0;width:100%}.rules-strip{display:flex;flex-wrap:wrap;gap:7px;margin-top:9px}.rules-strip span{background:rgba(13,71,161,.88);color:#e3f2fd;border-radius:999px;padding:5px 9px;font-size:9px;font-weight:800}.today-summary{margin-top:10px;padding:11px 14px;border-radius:16px;background:rgba(13,71,161,.92);color:#e3f2fd;font-size:11px}.today-summary p{margin:3px 0 0;opacity:.9}
.quiz-card{background:#fff;border-radius:var(--radius-lg);padding:15px 16px 16px;box-shadow:var(--shadow-soft)}.quiz-header{display:flex;justify-content:space-between;gap:10px;align-items:flex-start;margin-bottom:9px}.quiz-header-left{display:flex;flex-direction:column;gap:4px}.tag-row{display:flex;flex-wrap:wrap;gap:5px}.tag-row span{padding:2px 8px;border-radius:999px;background:#e3f5ff;color:#1565c0;font-size:9px;font-weight:800}.tag-row .category{background:#ffecb3;color:#ef6c00}.quiz-header h2{font-size:13px;margin:0}.score-pill{font-size:10px;border-radius:999px;background:#ffecb3;padding:5px 9px;color:#c05d00;font-weight:900;white-space:nowrap}.progress-wrapper{margin-bottom:11px}.progress-label-row{display:flex;justify-content:space-between;font-size:9px;color:var(--text-soft);margin-bottom:4px}.progress-bar{width:100%;height:9px;border-radius:999px;background:#e3f2fd;overflow:hidden}.progress-fill{display:block;height:100%;background:linear-gradient(90deg,#00c853,#ffd600);border-radius:inherit;transition:width .25s}.question-text{font-size:17px;font-weight:900;line-height:1.35;margin:12px 0}.question-image-wrap{text-align:center;margin:6px 0 12px}.question-image-wrap img{max-width:100%;max-height:250px;border-radius:14px;box-shadow:0 6px 14px rgba(0,0,0,.14)}.options{display:flex;flex-direction:column;gap:8px;margin-bottom:10px}.option-btn{border-radius:var(--radius-md);padding:9px 11px;border:2px solid transparent;background:#f9fbff;color:var(--text-main);font-size:12px;display:flex;align-items:center;gap:9px;text-align:left;box-shadow:0 3px 6px rgba(13,71,161,.12);transition:.12s}.option-btn:hover:not(:disabled){transform:translateY(-1px);border-color:#00a4ff;background:#fff}.option-label{width:27px;height:27px;border-radius:50%;background:#00a4ff;color:#fff;display:grid;place-items:center;font-weight:900;flex:0 0 auto}.option-text{flex:1}.option-btn.correct{border-color:#2ecc71;background:#e8f9f0}.option-btn.wrong{border-color:#e53935;background:#ffebee}.image-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.image-option{flex-direction:column;align-items:stretch}.option-img-wrapper{display:block;border-radius:12px;overflow:hidden;background:#e3f2fd}.option-img-wrapper img{display:block;width:100%;max-height:180px;object-fit:contain}.text-answer{width:100%;border-radius:11px;padding:10px 12px;border:2px solid #e3f2fd;background:#f9fbff;outline:0;font-size:13px}.text-answer:focus{border-color:#00a4ff}.check-btn{margin-top:8px;border:0;border-radius:999px;padding:8px 13px;background:#00c853;color:#fff;font-size:11px;font-weight:900}.feedback-row{display:flex;justify-content:space-between;align-items:flex-end;gap:10px;margin-top:5px}.feedback-stack{min-width:0;flex:1}.feedback{font-size:11px;min-height:18px;white-space:pre-wrap}.feedback.correct{color:var(--success);font-weight:800}.feedback.wrong{color:var(--error);font-weight:800}.answer-rewards{display:flex;gap:5px;margin-top:5px}.reward-chip{font-size:9px;font-weight:900;background:#e3f5ff;color:#1565c0;border-radius:999px;padding:4px 7px}.reward-chip.coin{background:#fff3e0;color:#e65100}.bottom-actions{display:flex;gap:7px}.secondary{border-radius:999px;padding:7px 11px;font-size:10px;font-weight:800;border:0;background:#e3f2fd;color:#1565c0}.secondary.outline{background:#fff;border:1px dashed #bbdefb;color:#607d8b}
.result-panel{background:#fff;border-radius:24px;padding:25px;text-align:center;box-shadow:var(--shadow-soft)}.result-emoji{font-size:46px}.result-panel .eyebrow{font-size:9px;color:#607d8b}.result-score{display:flex;justify-content:center;align-items:flex-start;color:#ff6f00}.result-score strong{font-size:68px;line-height:1;font-weight:900}.result-score span{font-size:22px;font-weight:900;margin-top:8px}.result-panel h2{font-size:20px;margin:7px 0 3px}.result-message{font-size:11px;color:#607d8b;max-width:520px;margin:0 auto 10px}.result-stats,.result-rewards{display:flex;justify-content:center;flex-wrap:wrap;gap:7px}.result-stats span,.result-rewards span{font-size:10px;padding:5px 9px;border-radius:999px;background:#f3f7fa}.result-rewards span{background:#fff3e0;color:#e65100;font-weight:900}.result-actions{display:flex;justify-content:center;gap:8px;margin-top:15px}
.report-card,.robotlab-card{background:rgba(255,255,255,.98);border-radius:22px;padding:16px;box-shadow:var(--shadow-soft)}.report-header{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px}.report-header h2,.robotlab-card h2{font-size:17px;margin:0}.report-header p,.robotlab-card>p{font-size:11px;color:var(--text-soft);margin:2px 0 0}.report-badge{border-radius:999px;padding:6px 9px;font-size:9px;background:#e3f5ff;color:#1565c0;font-weight:800}.report-main-grid{display:grid;grid-template-columns:2fr 3fr;gap:12px}.report-chart,.report-table-wrap{background:#f5f8ff;border-radius:16px;padding:10px}.report-chart h3,.report-table-wrap h3{font-size:11px;margin:0 0 7px;color:#1a237e}.report-chart-inner{height:170px;display:flex;align-items:flex-end;gap:6px;padding:20px 2px 0}.report-bar-wrap{flex:1;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center}.report-bar{width:100%;min-width:12px;max-width:42px;border-radius:999px 999px 4px 4px;background:linear-gradient(180deg,#a5d6a7,#43a047);position:relative}.report-bar.mid{background:linear-gradient(180deg,#ffecb3,#ffc107)}.report-bar.low{background:linear-gradient(180deg,#ef9a9a,#e53935)}.report-bar-value{position:absolute;top:-17px;left:50%;transform:translateX(-50%);font-size:8px;font-weight:800}.report-bar-label{font-size:7px;color:#607d8b;margin-top:3px}.report-table-wrap{overflow:auto}.report-table{width:100%;border-collapse:collapse;font-size:9px}.report-table th,.report-table td{padding:5px 4px;text-align:left;border-bottom:1px solid #e0e0e0;white-space:nowrap}.score-high{color:#1b5e20;font-weight:900}.score-mid{color:#ef6c00;font-weight:900}.score-low{color:#c62828;font-weight:900}.report-empty{font-size:11px;color:#607d8b}
.robotlab-card{text-align:left}.robotlab-robot-emoji{text-align:center;font-size:65px;margin:12px 0 4px}.robotlab-level-title{text-align:center;font-size:14px;font-weight:900;color:#1565c0}.robotlab-xpbar{margin-top:13px}.robotlab-xpbar-label{display:flex;justify-content:space-between;font-size:10px;color:#455a64;margin-bottom:4px}.robotlab-xpbar-track{height:12px;background:#e3f2fd;border-radius:999px;overflow:hidden}.robotlab-xpbar-fill{display:block;height:100%;background:linear-gradient(90deg,#00c853,#ffd600);border-radius:inherit}.robotlab-stats{display:flex;justify-content:space-around;margin:17px 0}.robotlab-stat{text-align:center;display:flex;flex-direction:column}.stat-number{font-size:20px;color:#ff6f00;font-weight:900}.stat-label{font-size:9px;color:#607d8b}.robotlab-upgrade-title{font-size:12px;color:#1a237e}.robotlab-upgrade-list{display:flex;flex-direction:column;gap:7px}.robotlab-upgrade-item{display:flex;gap:9px;align-items:center;background:#f3f7ff;padding:9px 11px;border-radius:13px;border:1px solid #bbdefb}.upgrade-icon{font-size:24px}.upgrade-name{font-size:11px;font-weight:900;color:#0d47a1}.upgrade-status{font-size:9px;color:#455a64}.upgrade-locked{opacity:.42}
.login-card{max-width:520px;margin:45px auto;background:#fff;border-radius:24px;padding:36px;box-shadow:var(--shadow-soft)}.login-icon{display:grid;place-items:center;width:62px;height:62px;border-radius:20px;background:#e3f5ff;font-size:31px;margin-bottom:18px}.login-card h1{font-size:30px;margin:0 0 7px}.login-card .eyebrow{color:#607d8b}.login-card .intro{color:#607d8b}.login-form{display:grid;gap:9px;margin-top:22px}.field-label{font-size:11px;font-weight:900;color:#455a64}.login-form .primary{margin-top:8px}.login-status{min-height:18px;color:#c62828;font-size:10px;margin:0}
@media(max-width:900px){.app-main-grid{grid-template-columns:1fr}.side-menu{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));order:2}.main-col{order:1}.report-main-grid{grid-template-columns:1fr}.badge-card{grid-row:span 2}.top-nav{order:3;width:100%}.topbar{flex-wrap:wrap}}
@media(max-width:640px){body{padding:8px}.shell{border-radius:20px}.topbar{padding:9px 12px;gap:8px}.brand{font-size:16px}.version{display:none}.top-nav{gap:2px}.top-nav button{font-size:10px;padding:6px 7px}.quiet{font-size:10px;padding:7px 9px}.family-logout{font-size:10px}main{padding:12px;min-height:720px}footer{padding:12px;font-size:9px}.profile-intro h1{font-size:30px}.profile-grid{grid-template-columns:1fr;gap:12px}.profile-card{min-height:230px;padding:20px}.avatar{font-size:42px}.profile-name{font-size:27px}.app-main-grid{display:flex;flex-direction:column}.side-menu{display:grid;grid-template-columns:1fr 1fr;order:2}.side-profile{grid-column:1/-1}.badge-card{grid-column:1/-1}.main-col{order:1}.hero-daily{padding:15px}.hero-text h1{font-size:22px}.hero-trophy{font-size:36px}.controls-pill{width:100%;justify-content:space-between}.controls-pill select{max-width:62%;text-align:right}.start-btn,.review-btn{flex:1}.quiz-header{flex-direction:column}.score-pill{align-self:flex-start}.question-text{font-size:16px}.feedback-row{flex-direction:column;align-items:stretch}.bottom-actions{justify-content:flex-end}.image-grid{grid-template-columns:1fr}.result-score strong{font-size:58px}.report-header{align-items:flex-start;flex-direction:column}.report-table{font-size:8px}.login-card{margin:20px auto;padding:26px 18px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}