:root{font-family:Inter,ui-rounded,Segoe UI,system-ui,sans-serif;color:#f8f5ec;background:#0c1220;font-synthesis:none}[hidden]{display:none!important}.captured-summary{position:absolute;left:10px;right:10px;top:10px;display:flex;justify-content:space-between;gap:10px;pointer-events:none}.captured-summary>div{padding:8px 10px;border-radius:10px;background:#111e30ed;max-width:46%;border:1px solid #536579}.captured-summary strong{display:block;font-size:12px}.captured-summary span{display:block;font-size:11px;color:#d7e4ef;line-height:1.5}.captured-blue strong{color:#86d5ff}.captured-red strong{color:#ffa8a3}.route-overview{border-bottom:1px solid #54748d;padding-bottom:14px}.route-overview summary{cursor:pointer;color:#80dcff;padding:12px 0;min-height:44px}.route-overview p{font-size:12px;line-height:1.6;color:#c3d1e3}.route-overview .route-requirements{padding:10px;border-radius:10px;background:#243d52;color:#f3f9ff}.route-overview button{width:100%;margin-top:8px;font-size:12px}.route-card{margin:8px 0;border:1px solid #45647d;border-radius:10px;background:#1b3045;overflow:hidden}.route-card>summary{display:grid;gap:3px;padding:10px!important;list-style-position:inside}.route-card>summary strong{color:#f3f7d0}.route-card>summary span{padding-left:18px;color:#89def0;font-size:11px}.route-card>p{margin:0;padding:0 10px 10px}.route-missions{display:grid;gap:6px;margin:0;padding:0 10px 10px 34px}.route-missions li{padding-left:3px;color:#d9e6f0;font-size:11px;line-height:1.4}.route-missions li strong,.route-missions li span{display:block}.route-missions li span{color:#aebfd0;font-size:10px}.route-card .route-gate{margin:0 10px 10px;padding:8px;border-radius:8px;background:#10263a;color:#cfe5f3}.route-card .route-mission-launch{width:calc(100% - 20px);margin:0 10px 10px;border-color:#82e5cd;background:linear-gradient(135deg,#8be8bd,#75d9eb);color:#102538;font-weight:900}.route-lesson-shell{width:min(620px,calc(100vw - 44px));padding:28px;color:#f2f7ff}#route-two-basics-dialog{max-width:none;padding:0;border:1px solid #6e9bb8;border-radius:20px;background:#13263b;color:#f2f7ff;box-shadow:0 28px 90px #020b14e8}#route-two-basics-dialog::backdrop{background:#061321c2;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}#route-two-basics-dialog .dialog-heading h2{color:#fff3bd}#route-two-basics-dialog .welcome-privacy{color:#bfd1df}.route-lesson-progress{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:12px;margin:18px 0;color:#b9cfe1;font-size:.8rem}.route-lesson-progress i{height:7px;border-radius:999px;overflow:hidden;background:#2b4258}.route-lesson-progress b{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#75dbff,#91edbd)}.route-lesson-card{padding:20px;border:1px solid #52718a;border-radius:16px;background:#1a3046}.route-lesson-card h3{margin:6px 0 10px;color:#fff6c9;font-family:Georgia,serif;font-size:1.45rem}.route-lesson-card p{color:#cfdeea;line-height:1.55}.route-lesson-card>strong{display:block;margin:18px 0 10px}.route-lesson-answers{display:grid;gap:8px}.route-lesson-answers button{padding:12px;text-align:left;border:1px solid #5a7890;border-radius:10px;background:#243b54;color:#f2f7ff}.route-lesson-answers button:hover:not(:disabled){border-color:#86e3f2;background:#2a4a66}.route-lesson-answers button.correct{border-color:#8ce8bb;background:#285d4e}.route-lesson-answers button.wrong{border-color:#e59a9a;background:#5b3440}.route-lesson-feedback{min-height:24px;margin-bottom:0;font-size:.85rem}.route-lesson-shell>.learner-primary{margin-top:14px;min-width:180px}@media(max-width:620px){.collection-grid{grid-template-columns:1fr}.route-lesson-shell{width:calc(100vw - 28px);padding:16px}.route-lesson-card{padding:15px}}*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0;overflow:hidden}html:has(dialog[open]),body:has(dialog[open]){overflow:hidden;height:100%}body{background:radial-gradient(circle at 50% 20%,#243657 0,#0c1220 65%)}button,select{font:inherit}#game-canvas{width:100%;height:100%;display:block;touch-action:none;outline:none}.hud{position:fixed;inset:0 0 auto;display:flex;justify-content:space-between;align-items:flex-start;padding:clamp(18px,3vw,38px);pointer-events:none}.brand h1{margin:2px 0 0;font-family:Georgia,serif;font-size:clamp(32px,5vw,64px);line-height:.9;text-shadow:0 3px 18px #000b}.brand p{margin:8px 0 0;color:#dce8ff;font-size:14px;letter-spacing:.05em}.eyebrow{color:#8fd9ff;font-weight:800;letter-spacing:.18em;font-size:11px}.status-card{display:flex;gap:12px;align-items:center;max-width:310px;padding:13px 17px;border:1px solid #ffffff2b;border-radius:18px;background:#101a2bd9;box-shadow:0 12px 40px #0005;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.status-card div{display:grid;gap:2px}.status-card span{color:#b9c9df;font-size:12px}.status-dot{width:10px;height:10px;border-radius:50%;background:#55d9ff;box-shadow:0 0 14px #55d9ff}.controls{position:fixed;left:50%;bottom:22px;transform:translate(-50%);display:flex;gap:8px;padding:8px;border:1px solid #ffffff24;border-radius:18px;background:#0d1525d9;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:0 12px 40px #0006}.controls button,.controls select{color:#edf4ff;background:#ffffff0d;border:1px solid #ffffff18;border-radius:12px;padding:10px 14px}.controls button{cursor:pointer;transition:.2s ease}.controls select{color-scheme:dark;cursor:pointer}.controls select option{color:#132238;background:#f4f7fb;font-weight:600}.controls button:hover,.controls button:focus-visible{background:#67caff22;border-color:#67caff88;outline:none;transform:translateY(-1px)}.legend{position:fixed;left:24px;bottom:28px;display:flex;gap:16px;color:#d8e4f5;font-size:12px}.legend span{display:flex;align-items:center;gap:7px}.learning-progress{position:fixed;left:24px;bottom:105px;width:290px;display:grid;gap:5px;padding:12px 14px;border:1px solid #ffffff24;border-radius:14px;background:#0d1525d9;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:0 12px 40px #0006}.learning-progress strong{font-size:12px}.learning-progress span{color:#b9c9df;font-size:11px}.progress-track{height:5px;overflow:hidden;border-radius:999px;background:#ffffff18}.progress-track i{display:block;width:0;height:100%;border-radius:inherit;background:linear-gradient(90deg,#45bfff,#75f2b5);transition:width .35s ease}.lesson-brief{display:grid;gap:5px;margin-top:6px;padding-top:10px;border-top:1px solid #ffffff1f}.lesson-brief .lesson-number{color:#72d8ff;font-size:9px;font-weight:800;letter-spacing:.14em}.lesson-brief>strong{color:#fff7dc;font-size:15px}.lesson-brief p{margin:0;color:#c9d7e9;font-size:11px;line-height:1.35}.lesson-brief b{color:#f6fbff}.swatch{width:10px;height:10px;border-radius:50%;box-shadow:0 0 10px currentColor}.swatch-blue{color:#38a9ff;background:#38a9ff}.swatch-red{color:#ff534d;background:#ff534d}.history-panel{position:fixed;right:24px;bottom:96px;width:210px;max-height:190px;padding:12px;border:1px solid #ffffff24;border-radius:16px;background:#0d1525d9;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:0 12px 40px #0006;overflow:hidden}.history-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}.history-heading button{color:#dcecff;background:#ffffff0d;border:1px solid #ffffff20;border-radius:8px;padding:5px 8px;cursor:pointer}.history-heading button:disabled{opacity:.4;cursor:default}#move-history{margin:9px 0 0;padding-left:28px;max-height:125px;overflow:auto;color:#dce8f7;font-size:12px;columns:2;column-gap:18px}#move-history li{padding:2px 0;break-inside:avoid}#move-history .empty-history{margin-left:-16px;color:#9fb0c7;list-style:none;columns:1}.history-actions{display:flex;gap:6px;margin-top:8px}.history-actions button{flex:1;color:#dcecff;background:#ffffff0d;border:1px solid #ffffff20;border-radius:8px;padding:5px;cursor:pointer;font-size:11px}#promotion-dialog{color:#f7f3e8;background:#101a2b;border:1px solid #75d9ff66;border-radius:18px;padding:22px;box-shadow:0 20px 80px #000b}#promotion-dialog::backdrop{background:#050914b8;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}#promotion-dialog form{display:grid;gap:16px}.promotion-options{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.promotion-options button{color:#eff8ff;background:#1b3452;border:1px solid #6acfff55;border-radius:10px;padding:12px 16px;cursor:pointer}.promotion-options button:hover,.promotion-options button:focus-visible{background:#285982;outline:2px solid #74dcff}#lesson-quiz{width:min(440px,calc(100% - 28px));color:#f7f3e8;background:linear-gradient(145deg,#172946,#101827);border:1px solid #75d9ff66;border-radius:22px;padding:24px;box-shadow:0 20px 80px #000c}#lesson-quiz::backdrop{background:#050914c7;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.quiz-content{display:grid;gap:14px}.quiz-content>strong{font-size:21px;line-height:1.25}.quiz-answers{display:grid;gap:8px}.quiz-answers button,#quiz-close{color:#eff8ff;text-align:left;background:#ffffff0d;border:1px solid #6acfff44;border-radius:12px;padding:12px 14px;cursor:pointer}.quiz-answers button:hover,.quiz-answers button:focus-visible{background:#285982;outline:2px solid #74dcff}.quiz-answers button.correct{background:#176947;border-color:#75f2b5}.quiz-answers button.wrong{background:#743533;border-color:#ff8d85}#quiz-feedback{min-height:20px;margin:0;color:#cbd9eb;font-size:13px}#quiz-close{text-align:center;background:#24638a}@media(max-width:720px){.hud{padding:16px}.brand p{display:none}.status-card{max-width:190px;padding:10px 12px}.status-card span{display:none}.controls{bottom:8px;width:calc(100% - 16px);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;padding:6px}.controls button,.controls select{width:100%;min-width:0;padding:7px 5px;font-size:9px}.legend{display:none}.learning-progress{left:10px;top:104px;bottom:auto;width:220px;padding:8px 10px}.lesson-brief p{font-size:10px}.lesson-brief p:last-child{display:none}.history-panel{right:10px;bottom:92px;width:150px;max-height:150px;padding:9px}.history-heading{font-size:12px}.history-heading button{font-size:10px}#move-history{max-height:70px;font-size:10px;columns:1}}#app{display:grid;grid-template-columns:248px minmax(0,1fr) 280px;grid-template-rows:78px minmax(0,1fr);gap:16px;padding:0 18px 18px}.app-header{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid #ffffff20}.header-actions{display:flex;align-items:center;gap:8px}#profile-open,#collection-open,#home-open{display:inline-flex;align-items:center;gap:7px}.computer-thinking{position:absolute;inset:auto 50% 24px auto;z-index:8;display:flex;align-items:center;gap:12px;min-width:min(360px,calc(100% - 32px));padding:13px 17px;color:#f7fbff;background:#14263aee;border:1px solid #ff8e9c99;border-radius:16px;box-shadow:0 12px 36px #050b14a6;transform:translate(50%);pointer-events:none}.computer-thinking[hidden]{display:none}.computer-thinking strong,.computer-thinking small{display:block}.computer-thinking small{margin-top:3px;color:#bdcede;font-size:11px}.thinking-orb{display:flex;gap:4px}.thinking-orb i{width:7px;height:7px;border-radius:50%;background:#ff7284;animation:thinking-dot 1s ease-in-out infinite}.thinking-orb i:nth-child(2){animation-delay:.15s}.thinking-orb i:nth-child(3){animation-delay:.3s}.computer-turn #game-canvas{filter:saturate(.9) brightness(.92)}@keyframes thinking-dot{0%,to{transform:translateY(0);opacity:.45}50%{transform:translateY(-4px);opacity:1}}.accessible-play{margin-top:14px;padding:12px;border:1px solid #ffffff24;border-radius:14px;background:#0e1b2c80}.accessible-play summary{cursor:pointer;color:#9de8ff;font-weight:800}.accessible-play p{margin:8px 0;color:#b9cad8;font-size:12px;line-height:1.4}.accessible-play label{display:grid;gap:5px;margin-top:9px;color:#d8e6ef;font-size:12px;font-weight:700}.accessible-play select{width:100%;color:#17263a;background:#f4f8fb}.accessible-play button{width:100%;margin-top:10px}.accessible-play small{display:block;min-height:18px;margin-top:7px;color:#ffe0a0;line-height:1.35}.app-header[data-banner=banner-forest]{box-shadow:inset 0 -3px #70d59b}.app-header[data-banner=banner-royal]{box-shadow:inset 0 -3px #ffd36e}#collection-dialog{width:min(820px,calc(100% - 32px));max-height:calc(100dvh - 32px);color:#f9fbff;background:linear-gradient(145deg,#19324c,#101c30);border:1px solid #82ddff8c;border-radius:26px;padding:0;overflow:auto;box-shadow:0 30px 100px #020815e6}#collection-dialog::backdrop{background:#07101ad9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}#game-finished-dialog{width:min(520px,calc(100% - 32px));color:#f9fbff;background:radial-gradient(circle at 50% 0,#294e6c,#111d30 65%);border:1px solid #ffe08a99;border-radius:28px;padding:0;box-shadow:0 30px 100px #020815e6}#game-finished-dialog::backdrop{background:#07101ae6;-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px)}.game-finished-shell{display:grid;justify-items:center;gap:14px;padding:clamp(26px,5vw,44px);text-align:center}.game-finished-icon{display:grid;place-items:center;width:82px;height:82px;border-radius:50%;color:#19304a;background:radial-gradient(circle at 35% 25%,#fff5bf,#e8b64a);border:4px solid #fff2b8;box-shadow:0 0 35px #ffd75d66;font-size:45px}.game-finished-shell h2{margin:0;color:#fff0bf;font:700 clamp(30px,6vw,44px)/1.05 Georgia,serif}.game-finished-shell>p{margin:0;color:#d6e4ef;line-height:1.55}.game-finished-actions{display:grid;width:100%;gap:9px;margin-top:8px}.game-finished-actions button{min-height:48px}.collection-shell{display:grid;gap:18px;padding:clamp(22px,4vw,38px)}.collection-shell h2{margin:5px 0 0;color:#fff0bf;font:700 clamp(28px,4.5vw,40px)/1.1 Georgia,serif}.collection-shell h3{margin:0 0 9px;color:#9de8ff;font-size:14px;letter-spacing:.1em;text-transform:uppercase}.collection-summary{margin:0;color:#d9e8f5;line-height:1.5}.collection-progress{display:grid;grid-template-columns:1fr auto;align-items:center;gap:12px;color:#c9dae8;font-size:12px}.collection-progress i{height:8px;overflow:hidden;border-radius:99px;background:#ffffff18}.collection-progress b{display:block;height:100%;width:0;border-radius:inherit;background:linear-gradient(90deg,#72d8ff,#ffe083);transition:width .3s ease}.collection-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.cosmetic-card{position:relative;display:grid;grid-template-columns:42px 1fr;gap:10px;align-items:center;min-height:78px;padding:12px;text-align:left;border-radius:16px}.cosmetic-card .cosmetic-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;color:#172338;background:linear-gradient(145deg,#b7edff,#ffe39b);font-size:25px}.cosmetic-card strong,.cosmetic-card small{display:block}.cosmetic-card small{margin-top:4px;color:inherit;opacity:.72;line-height:1.3}.cosmetic-card[aria-pressed=true]{color:#102a29;background:#8ae6bd;border-color:#d2ffeb}.cosmetic-card:disabled{color:#93a2b4;background:#101b2b;border-color:#ffffff14;opacity:.78}.cosmetic-card:disabled .cosmetic-icon{color:#8291a2;background:#263448}body[data-effect=effect-starlight] #collection-open span{color:#ffe685;text-shadow:0 0 10px #ffd95c}body[data-effect=effect-aurora] #collection-open span{color:#8dffd0;text-shadow:0 0 12px #6effc7;animation:cosmetic-pulse 1.8s ease-in-out infinite}@keyframes cosmetic-pulse{50%{transform:scale(1.18) rotate(8deg)}}@media(max-width:620px){.collection-grid{grid-template-columns:1fr}.collection-shell{padding:20px}}.app-logo{color:#fff1cd;text-decoration:none;font:700 28px Georgia,serif}.app-logo small{display:block;color:#b1c4d9;font:11px Segoe UI,sans-serif;margin-top:4px}.mode-nav{display:flex;gap:8px}button,select{color:#eef6ff;background:#21334c;border:1px solid #526681;border-radius:10px;padding:10px 14px;min-height:44px;cursor:pointer}button:hover{background:#304e6c}button:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #79ddff;outline-offset:3px}.mode-nav button[aria-pressed=true]{color:#102131;background:#80dcff;border-color:#bcefff;font-weight:800}#board-region{grid-column:2;grid-row:2;position:relative;min-width:0;min-height:0;overflow:hidden;border:1px solid #607590;border-radius:24px;background:#182539}#game-canvas{width:100%;height:100%}.learning-progress,.side-panel{position:static;width:auto;padding:20px;border-radius:20px;border:1px solid #3e5570;background:#152337;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;overflow-y:auto;min-height:0}.learning-progress{grid-column:1;grid-row:2;display:flex;flex-direction:column;gap:12px;border-top:4px solid #70d3ff}.learning-progress strong{font-size:15px}.learning-progress span{font-size:13px;line-height:1.6}#lesson-select{width:100%;min-width:0;font-size:13px;margin-bottom:8px}#lesson-select option{color:#152337;background:#f3f7ff}.lesson-brief{gap:14px;margin-top:6px;padding-top:18px}.lesson-brief>strong{font-size:22px;line-height:1.2}.lesson-brief .lesson-number{font-size:11px}.lesson-brief p,.lesson-brief p:last-child{display:block;font-size:14px;line-height:1.6}.lesson-brief b{display:block;margin-bottom:3px}#session-context{grid-column:1;grid-row:2;border-top:4px solid #d5b17a}.side-panel h2{font-size:23px;line-height:1.25}.side-panel p{color:#c3d1e3;font-size:14px;line-height:1.6}#action-panel{grid-column:3;grid-row:2;border-top:4px solid #7ee4b2}.status-card{background:#20374c;border:0;border-radius:14px;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;padding:16px;margin-top:18px;max-width:none}.status-card strong{font-size:19px;line-height:1.35}.status-card span{display:block;font-size:14px;line-height:1.6;margin-top:8px;color:#e0edfc}.status-dot{display:none!important}#lesson-start{width:100%;margin-top:16px;background:#85dfb9;color:#102b26;font-weight:800}.session-note{padding-top:14px;border-top:1px solid #ffffff20;font-size:12px!important;color:#acc0d8!important}.history-panel{position:static;width:auto;max-height:none;padding:20px 0 0;margin-top:20px;border:0;border-top:1px solid #ffffff24;border-radius:0;background:none;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}#move-history{max-height:220px;font-size:14px;columns:2;line-height:1.7}.history-actions{display:none}[data-mode=analysis] .history-actions{display:flex}[data-mode=learn] #undo-button{display:none}.legend{position:absolute;left:0;right:0;bottom:0;display:flex;justify-content:center;padding:10px;background:#101b2eeb;font-size:12px;pointer-events:none}#settings-dialog{width:min(440px,calc(100% - 24px));color:#f5f9ff;background:#152337;border:1px solid #6a8bad;border-radius:20px;padding:24px}#settings-dialog::backdrop{background:#040c19bd}.dialog-heading{display:flex;justify-content:space-between;align-items:center;gap:12px}.dialog-heading h2{font-size:20px}.settings-controls{display:grid;gap:12px;margin-top:20px}#reset-button{background:#49303b}#welcome-dialog{width:min(760px,calc(100% - 32px));color:#f9fbff;background:linear-gradient(145deg,#19324c,#111d31 58%,#17243a);border:1px solid #82ddff8c;border-radius:30px;padding:0;overflow:hidden;box-shadow:0 30px 100px #020815e6,inset 0 1px #ffffff24}#welcome-dialog::backdrop{background:#07101ad9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.welcome-shell{display:grid;justify-items:center;gap:18px;padding:clamp(28px,5vw,52px);text-align:center}.welcome-kicker{color:#83e7ff;font-size:12px;font-weight:900;letter-spacing:.2em}.welcome-shell h1{margin:0;color:#fff0bf;font:700 clamp(34px,6vw,58px)/1 Georgia,serif;text-shadow:0 4px 24px #0009}.welcome-lead{max-width:590px;margin:0;color:#d7e6f5;font-size:clamp(16px,2.2vw,20px);line-height:1.55}.welcome-choices{width:100%;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:8px}.welcome-choices:has(#welcome-continue:not([hidden])){grid-template-columns:repeat(2,minmax(0,1fr))}.welcome-choice-continue{border-color:#ffe08a;background:#3b3e55}.welcome-choice-remote{border-color:#7ee5f4;background:#1d4760}.welcome-choice{display:flex;align-items:center;gap:12px;min-height:122px;padding:16px;text-align:left;background:#223b56;border:1px solid #7095b4;border-radius:20px}.welcome-choice:hover{transform:translateY(-2px);background:#2b4b68;border-color:#9bdfff}.welcome-choice-primary{color:#102a29;background:linear-gradient(135deg,#8ae6bd,#78dbe9);border-color:#c7ffe6}.welcome-choice-primary:hover{background:linear-gradient(135deg,#a3f1ce,#91e6f2)}.welcome-choice-icon{flex:0 0 48px;display:grid;place-items:center;width:48px;height:48px;color:#fff2bd;background:#12263bd6;border-radius:15px;font-size:30px;box-shadow:inset 0 1px #ffffff26}.welcome-choice strong,.welcome-choice small{display:block}.welcome-choice strong{font-size:17px;line-height:1.2}.welcome-choice small{margin-top:7px;color:inherit;opacity:.82;font-size:13px;line-height:1.4}.welcome-explore{min-height:38px;padding:6px 12px;color:#bcd1e4;background:transparent;border:0;text-decoration:underline;text-underline-offset:4px}.welcome-explore:hover{color:#fff;background:transparent}.welcome-privacy{margin:0;color:#92abc0;font-size:12px}.play-session-open{width:100%;margin-top:12px;color:#102a29;background:#85dfb9;border-color:#bff4da;font-weight:800}#play-start-dialog{width:min(610px,calc(100% - 32px));color:#f9fbff;background:linear-gradient(145deg,#19324c,#101c30);border:1px solid #82ddff8c;border-radius:26px;padding:0;box-shadow:0 30px 100px #020815e6}#play-start-dialog::backdrop{background:#07101ad9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.play-start-shell{display:grid;justify-items:center;gap:16px;padding:clamp(26px,5vw,44px);text-align:center}.play-start-shell h2{margin:0;color:#fff0bf;font:700 clamp(28px,5vw,42px)/1.1 Georgia,serif}.play-start-shell>p{margin:0;color:#d2e1ef;line-height:1.55}.play-start-actions{width:100%;display:grid;gap:12px;margin-top:6px}.play-start-actions button{display:grid;gap:5px;padding:17px 20px;text-align:left;border-radius:16px}.play-start-actions strong,.play-start-actions small{display:block}.play-start-actions strong{font-size:18px}.play-start-actions small{color:inherit;opacity:.78}.play-start-actions .play-new{color:#102a29;background:linear-gradient(135deg,#8ae6bd,#78dbe9);border-color:#c7ffe6}.play-start-actions .play-new:hover{background:linear-gradient(135deg,#a3f1ce,#91e6f2)}.learner-setup-summary{display:grid;gap:8px;margin-top:auto;padding-top:14px;border-top:1px solid #ffffff20}.learner-setup-summary span{color:#b9ccde;font-size:12px}.learner-setup-summary button{width:100%;padding:8px 10px;min-height:38px;font-size:12px}#learner-setup-dialog{width:min(780px,calc(100% - 32px));max-height:calc(100dvh - 32px);color:#f9fbff;background:linear-gradient(145deg,#19324c,#101c30);border:1px solid #82ddff8c;border-radius:28px;padding:0;overflow:auto;box-shadow:0 30px 100px #020815e6}#learner-setup-dialog::backdrop{background:#07101ad9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.learner-setup-shell{display:grid;justify-items:center;gap:14px;padding:clamp(24px,4vw,42px);text-align:center}.learner-setup-shell h2{margin:0;color:#fff0bf;font:700 clamp(28px,4.5vw,42px)/1.1 Georgia,serif}.learner-setup-shell>p{max-width:610px;margin:0;color:#d2e1ef;line-height:1.5}.learner-choice-group{width:100%;margin:4px 0 0;padding:0;border:0;text-align:left}.learner-choice-group legend{margin-bottom:8px;color:#8fe7ff;font-size:12px;font-weight:900;letter-spacing:.12em;text-transform:uppercase}.learner-choice-grid{display:grid;gap:9px}.age-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.level-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.learner-choice-grid button{display:grid;gap:4px;min-width:0;padding:13px;text-align:left;border-radius:14px}.learner-choice-grid button[aria-pressed=true]{color:#102a29;background:#8ae6bd;border-color:#d2ffeb;box-shadow:0 0 0 3px #62d9ff73}.learner-choice-grid strong,.learner-choice-grid small{display:block}.learner-choice-grid strong{font-size:15px}.learner-choice-grid small{color:inherit;opacity:.78;font-size:11px;line-height:1.35}.learner-setup-save{width:min(360px,100%);margin-top:6px;color:#102a29;background:linear-gradient(135deg,#8ae6bd,#78dbe9);border-color:#c7ffe6;font-weight:900}.learner-setup-save:disabled{opacity:.45;cursor:not-allowed}#profile-dialog{width:min(700px,calc(100% - 32px));max-height:calc(100dvh - 32px);color:#f9fbff;background:linear-gradient(145deg,#19324c,#101c30);border:1px solid #82ddff8c;border-radius:26px;padding:0;overflow:auto;box-shadow:0 30px 100px #020815e6}#profile-dialog::backdrop{background:#07101ad9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.profile-shell{display:grid;gap:16px;padding:clamp(22px,4vw,38px)}.profile-shell .dialog-heading{align-items:flex-start}.profile-shell h2{margin:5px 0 0;color:#fff0bf;font:700 clamp(28px,4.5vw,40px)/1.1 Georgia,serif}.profile-shell>p{margin:0;color:#cbdbea;line-height:1.5}.profile-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.profile-card{display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:10px;padding:12px;text-align:left;border-radius:14px}.profile-card[aria-pressed=true]{color:#102a29;background:#8ae6bd;border-color:#d2ffeb}.profile-avatar{display:grid;place-items:center;width:44px;height:44px;border-radius:13px;background:#10243a;font-size:24px}.profile-card strong,.profile-card small{display:block}.profile-card small{margin-top:3px;color:inherit;opacity:.75}.profile-active{font-size:11px;font-weight:900;text-transform:uppercase}.profile-create{display:grid;gap:10px;padding-top:14px;border-top:1px solid #ffffff24}.profile-create h3{margin:0;font-size:17px}.profile-role{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.profile-role button{display:grid;gap:4px;text-align:left}.profile-role button[aria-pressed=true]{color:#102a29;background:#8ae6bd;border-color:#d2ffeb}.profile-role small{color:inherit;opacity:.75}.profile-create label{color:#8fe7ff;font-size:12px;font-weight:900;letter-spacing:.12em;text-transform:uppercase}.profile-create select{width:100%;color:#152337;background:#f3f7ff}.profile-feedback{min-height:20px;margin:0;color:#ffd6a0;font-size:12px}@media(max-width:620px){#welcome-dialog{width:min(94vw,500px);border-radius:22px}.welcome-shell{gap:14px;padding:24px 18px}.welcome-shell h1{font-size:34px}.welcome-lead{font-size:15px}.welcome-choices{grid-template-columns:1fr;gap:10px}.welcome-choices:has(#welcome-continue:not([hidden])){grid-template-columns:1fr}.welcome-choice{min-height:86px;padding:14px}.welcome-choice-icon{flex-basis:48px;width:48px;height:48px;font-size:29px}.welcome-choice strong{font-size:18px}.age-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.level-grid{grid-template-columns:1fr}.learner-setup-shell{padding:22px 16px}.profile-list,.profile-role{grid-template-columns:1fr}.header-actions{width:100%}.header-actions button{flex:1}}@media(max-width:1100px){#app{grid-template-columns:205px minmax(0,1fr) 230px;gap:10px;padding:0 10px 10px}.learning-progress,.side-panel{padding:14px}}@media(max-width:850px){html,body{overflow:auto;height:auto;min-height:100%}#app{height:auto;min-height:100dvh;overflow:visible;grid-template-columns:minmax(0,1fr);grid-template-rows:auto auto auto auto;gap:12px;padding:0 12px 20px}.app-header{grid-column:1;grid-row:1;flex-wrap:wrap;padding:14px 0;gap:12px}.app-logo{font-size:24px}.mode-nav{order:3;width:100%}.mode-nav button{flex:1;padding:10px 8px}#board-region{grid-column:1;grid-row:2;height:clamp(340px,85vw,580px)}#action-panel{grid-column:1;grid-row:3}.learning-progress,#session-context{grid-column:1;grid-row:4;width:auto}.status-card{margin-top:10px}.status-card span{display:block}.lesson-brief p{font-size:14px}#move-history{max-height:100px;columns:2;font-size:14px}.history-heading{font-size:15px}}.pilot-panel{margin-top:1rem;border:1px solid #729ab5;border-radius:14px;padding:12px;background:#15283b;color:#eef8ff}.pilot-panel[open]{position:fixed;z-index:40;inset:5vh auto auto 50%;width:min(720px,calc(100vw - 32px));max-height:90vh;overflow:auto;transform:translate(-50%);padding:18px;border-color:#7bd8eb;box-shadow:0 28px 90px #020b14e8,0 0 0 100vmax #061321b8}.pilot-panel>summary{cursor:pointer;font-weight:800;line-height:1.35}.pilot-panel[open]>summary{position:sticky;top:-18px;z-index:2;margin:-18px -18px 12px;padding:16px 18px;background:#15283bf5;border-bottom:1px solid #38556d}.pilot-panel h2,.pilot-panel h3,.pilot-panel p{margin:0}.pilot-panel h2{margin-top:3px;font-size:1.15rem}.pilot-panel h3{font-size:1rem}.pilot-heading,.pilot-step-title{display:grid;gap:3px;margin-bottom:8px}.pilot-heading{margin-top:14px}.pilot-heading span,.pilot-step-title span{color:#7ee5f4;font-size:.68rem;font-weight:900;letter-spacing:.14em}.pilot-intro,.pilot-step p{color:#c8d8e7;font-size:.82rem;line-height:1.45}.pilot-step{margin-top:12px;padding:12px;border:1px solid #486981;border-radius:12px;background:#1a3046}.pilot-paths{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.pilot-panel label{display:grid;gap:5px;margin:10px 0;font-size:.8rem;font-weight:700}.pilot-panel input,.pilot-panel select{box-sizing:border-box;width:100%;min-width:0;background:#f5faff;color:#112235;border:1px solid #8ca5b9;border-radius:8px;padding:10px;font:inherit}.pilot-panel button{margin:4px 2px 4px 0;max-width:100%;white-space:normal}.pilot-panel .pilot-primary{border-color:#8df1c7;background:linear-gradient(135deg,#8ce9bf,#78dbe9);color:#102538;font-weight:900}.pilot-new-player,.pilot-recovery{margin-top:8px;padding-top:8px;border-top:1px solid #38556d}.pilot-new-player summary,.pilot-recovery summary,#pilot-code-wrap summary{cursor:pointer;font-size:.8rem;font-weight:700;color:#dbeaf6}.pilot-session-actions{display:flex;flex-wrap:wrap;gap:4px;margin-top:10px}#pilot-message{margin:12px 2px 2px;color:#cde3f2;font-size:.78rem;line-height:1.45}.pilot-panel [hidden]{display:none}.pilot-panel[aria-busy=true]{opacity:.8}@media(max-width:620px){.pilot-panel[open]{inset:12px auto auto 50%;width:calc(100vw - 24px);max-height:calc(100vh - 24px);padding:14px}.pilot-panel[open]>summary{top:-14px;margin:-14px -14px 10px;padding:14px}.pilot-paths{grid-template-columns:1fr}}