@import "https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:wght@400;700&family=Fredoka:wght@600;700&display=swap";:root{color:#27233a;font-synthesis:none;text-rendering:optimizelegibility;--ink:#27233a;--surface:#fff;--primary:#6750a4;--primary-dark:#47317d;--accent:#ffca5c;--aqua:#75d8d1;--focus:#006b64;--shadow:0 18px 50px #37255c24;background:#f7f3ff;font-family:Atkinson Hyperlegible,system-ui,sans-serif}*{box-sizing:border-box}body{background:radial-gradient(circle at 12% 15%,#75d8d14d,#0000 24rem),radial-gradient(circle at 88% 85%,#ffca5c42,#0000 23rem),#f7f3ff;min-width:320px;min-height:100vh;margin:0}button,a{font:inherit}button{cursor:pointer;min-height:44px}:focus-visible{outline:4px solid var(--focus);outline-offset:3px}.app-shell{width:min(1280px,100% - 32px);margin:0 auto;padding:24px 0 48px}.app-shell:fullscreen{background:radial-gradient(circle at 12% 15%,#75d8d14d,#0000 24rem),radial-gradient(circle at 88% 85%,#ffca5c42,#0000 23rem),#f7f3ff;width:100%;height:100%;padding:24px max(16px,50vw - 660px) 48px;overflow:auto}.app-shell:fullscreen .site-header{margin-bottom:24px}.site-header{justify-content:space-between;align-items:center;gap:16px;margin-bottom:clamp(40px,8vw,96px);display:flex}.app-shell:has(.game-layout) .site-header{margin-bottom:24px}.brand{color:var(--primary-dark);background:0 0;border:0;align-items:center;gap:10px;padding:0;font-family:Fredoka,system-ui,sans-serif;font-size:clamp(1.2rem,4vw,1.65rem);font-weight:700;text-decoration:none;display:inline-flex}.brand-mark{color:#d04f78}.header-actions{align-items:center;gap:10px;display:flex}.active-player{color:var(--primary-dark);background:#fff0bf;border:0;border-radius:999px;align-items:center;gap:7px;padding:8px 13px;font-weight:700;display:inline-flex}.coach-toggle,.music-toggle,.fullscreen-toggle{color:var(--primary-dark);background:#fffc;border:2px solid #d8ceee;border-radius:999px;justify-content:center;align-items:center;font-weight:700;display:inline-flex}.coach-toggle{gap:8px;padding:10px 16px}.music-toggle,.fullscreen-toggle{flex:0 0 48px;width:48px;padding:9px}.music-toggle:hover,.music-toggle[aria-pressed=true],.fullscreen-toggle:hover:not(:disabled),.fullscreen-toggle[aria-pressed=true]{border-color:var(--primary);background:#eee7ff}.fullscreen-toggle:disabled{cursor:not-allowed;opacity:.5}.music-toggle svg,.fullscreen-toggle svg{fill:currentColor;width:24px;height:24px;overflow:visible}.fullscreen-toggle svg,.music-toggle svg>path:first-child{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2.2px}.music-toggle .music-toggle__slash{fill:none;stroke:#b4234d;stroke-linecap:round;stroke-width:2.7px}.welcome-card{box-shadow:var(--shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffd6;border:1px solid #6750a41f;border-radius:36px;grid-template-columns:minmax(0,1fr) minmax(280px,430px);align-items:center;gap:clamp(36px,8vw,92px);padding:clamp(30px,6vw,72px);display:grid;overflow:hidden}.eyebrow{color:#a93661;letter-spacing:.1em;text-transform:uppercase;margin:0 0 10px;font-weight:700}h1{max-width:12ch;color:var(--primary-dark);letter-spacing:-.04em;margin:0;font-family:Fredoka,system-ui,sans-serif;font-size:clamp(2.6rem,7vw,5.4rem);line-height:.98}.welcome-copy>p:not(.eyebrow){max-width:51ch;margin:24px 0;font-size:clamp(1.05rem,2vw,1.3rem);line-height:1.6}.primary-action,.error-card button{color:#fff;background:var(--primary);box-shadow:0 8px 0 var(--primary-dark);border:0;border-radius:14px;padding:13px 24px;font-weight:700}.primary-action:active,.error-card button:active{box-shadow:0 4px 0 var(--primary-dark);transform:translateY(4px)}.secondary-action{color:var(--primary-dark);background:#fff;border:2px solid #c8bcdf;border-radius:14px;padding:12px 20px;font-weight:700}.hero-grid{aspect-ratio:1;border:5px solid var(--primary-dark);background:var(--primary-dark);box-shadow:18px 22px 0 var(--accent);border-radius:20px;grid-template-columns:repeat(3,1fr);padding:8px;display:grid;transform:rotate(3deg)}.hero-grid span{color:var(--primary-dark);background:var(--surface);border:2px solid #cbc0e7;place-items:center;font-family:Fredoka,system-ui,sans-serif;font-size:clamp(1.8rem,5vw,3.6rem);display:grid}.hero-grid span:nth-child(2n){background:#e8fbf9}.loading-card{text-align:center;width:min(680px,100%);box-shadow:var(--shadow);background:#ffffffe6;border-radius:32px;margin:8vh auto;padding:clamp(34px,7vw,70px)}.loading-card h1{max-width:none;font-size:clamp(2.2rem,7vw,4rem)}.puzzle-spinner{color:#d04f78;font-size:4rem;animation:1.4s linear infinite spin-splash}@keyframes spin-splash{to{transform:rotate(360deg)}}.game-layout{grid-template-columns:minmax(0,720px) minmax(360px,1fr);align-items:start;gap:24px;display:grid}.game-panel,.game-side-panel{box-shadow:var(--shadow);background:#ffffffeb;border:1px solid #6750a41f;border-radius:28px;padding:clamp(18px,4vw,34px)}.game-heading{justify-content:space-between;align-items:end;gap:16px;margin-bottom:18px;display:flex}.game-heading h1{max-width:none;font-size:clamp(2rem,6vw,3.5rem)}.game-meta{gap:8px;display:flex}.game-meta span{white-space:nowrap;background:#f2edfc;border-radius:999px;padding:8px 11px;font-weight:700}.difficulty-picker{grid-template-columns:repeat(auto-fit,minmax(96px,1fr));gap:8px;margin-bottom:18px;display:grid}.difficulty-picker button{color:var(--primary-dark);background:#fff;border:2px solid #d7cdea;border-radius:12px;padding:8px;font-weight:700}.difficulty-picker button:disabled{cursor:not-allowed;opacity:.58}.difficulty-picker .difficulty--active{border-color:var(--primary);color:#fff;background:var(--primary);opacity:1}.sudoku-board{aspect-ratio:1;border:4px solid var(--primary-dark);background:var(--primary-dark);border-radius:12px;grid-template-rows:repeat(9,minmax(0,1fr));grid-template-columns:repeat(9,minmax(0,1fr));width:min(100%,590px);margin:0 auto;display:grid;overflow:hidden}.sudoku-cell{color:#30264b;background:#fff;border:1px solid #b9add1;border-top:0;border-left:0;border-radius:0;place-items:center;width:100%;min-width:0;height:100%;min-height:0;padding:0;font-family:Fredoka,system-ui,sans-serif;font-size:clamp(1rem,4.8vw,2rem);display:grid;position:relative;overflow:hidden}.sudoku-cell--given{color:#3d2c6c;background:#ede7f8}.sudoku-cell--editable{color:#006b64}.sudoku-cell--related{background:#dff5f2}.sudoku-cell--same-value{color:#8f153d;background:#ffdce8}.sudoku-cell--box-right{border-right:4px solid var(--primary-dark)}.sudoku-cell--box-bottom{border-bottom:4px solid var(--primary-dark)}.sudoku-cell--selected{z-index:1;background:#fff0a8;box-shadow:inset 0 0 0 4px #d49300}.sudoku-cell--incorrect{color:#8f153d;background:#ffe3eb;box-shadow:inset 0 0 0 3px #b4234d}.sudoku-cell--coach-area{background:#eee9ff}.sudoku-cell--coach-focus{z-index:3;background:#fff4bd;animation:1.4s ease-in-out 2 coach-cell-pulse;box-shadow:inset 0 0 0 3px #6d45ce,inset 0 0 18px #6d45ce2e}.sudoku-cell--incorrect.sudoku-cell--coach-focus{box-shadow:inset 0 0 0 3px #b4234d,inset 0 0 0 7px #ffe3eb,inset 0 0 0 10px #6d45ce}.coach-focus-mark{color:#6d45ce;font-family:system-ui,sans-serif;font-size:.58em;line-height:1;position:absolute;top:2px;left:4px}@keyframes coach-cell-pulse{50%{filter:brightness(1.08)}}.mistake-mark{color:#b4234d;font-family:system-ui,sans-serif;font-size:.8em;font-weight:900;position:absolute;top:0;right:3px}.possible-numbers{color:#4e4670;pointer-events:none;grid-template-rows:repeat(3,minmax(0,1fr));grid-template-columns:repeat(3,minmax(0,1fr));align-items:center;font-family:Atkinson Hyperlegible,system-ui,sans-serif;font-size:clamp(.48rem,1.55vw,.82rem);font-weight:700;line-height:1;display:grid;position:absolute;inset:2px}.possible-numbers>span{place-items:center;display:grid}.possible-numbers--notes{color:#006b64}.entry-tools{grid-template-columns:1fr;gap:10px;width:min(100%,290px);margin:18px auto 0;display:grid}.entry-tool-toggle--active{border-color:var(--primary);color:#fff;background:var(--primary)}.number-pad{grid-template-columns:repeat(10,1fr);gap:6px;margin:10px auto 0;display:grid}.number-pad button{min-width:0;color:var(--primary-dark);background:#fff;border:2px solid #cbc0e7;border-radius:10px;padding:7px 3px;font-family:Fredoka,system-ui,sans-serif;font-size:1.2rem}.number-pad button:hover:not(:disabled){border-color:var(--primary);background:#f2edfc}.number-pad--note-mode button:not(.erase-button){color:#005f59;background:#e8fbf9;border-color:#65bdb6}.number-pad .erase-button{padding-inline:7px;font-family:inherit;font-size:.95rem}.game-status{border-left:5px solid var(--primary);background:#f5f1fd;border-radius:10px;min-height:52px;margin:16px 0;padding:12px 14px;font-weight:700;line-height:1.4}.game-actions{grid-template-columns:1fr 1fr 1.4fr;gap:10px;display:grid}.badge-disabled-notice{color:#741333;text-align:center;background:#fff0f3;border-radius:10px;margin:14px 0 0;padding:10px 12px;font-weight:700}.game-actions button:disabled,.entry-tools button:disabled,.number-pad button:disabled{cursor:not-allowed;opacity:.5;box-shadow:none}.game-side-panel{padding:0;position:sticky;top:18px;overflow:hidden}.game-side-panel h2{color:var(--primary-dark);margin-top:0;font-family:Fredoka,system-ui,sans-serif}.game-side-panel p{line-height:1.5}.game-side-panel>button{width:100%}.coach-panel{background:#fbfaff;flex-direction:column;min-height:570px;display:flex}.coach-panel__header{color:#fff;background:radial-gradient(circle at 88% 0,#ffffff26,#0000 8rem),linear-gradient(135deg,#463079,#6b4db0);align-items:center;gap:12px;padding:18px 20px 15px;display:flex}.coach-avatar{color:#4d357d;background:#fff1a9;border:2px solid #ffffff73;border-radius:14px;flex:0 0 44px;place-items:center;width:44px;height:44px;font-size:1.35rem;display:grid;box-shadow:0 5px 12px #180b3a40}.coach-panel__header>div:last-child{flex:1;min-width:0}.coach-title-line{justify-content:space-between;align-items:center;gap:8px;display:flex}.game-side-panel .coach-title-line h2{color:#fff;margin:0;font-size:1.12rem}.coach-panel__header p{color:#e7defb;text-overflow:ellipsis;white-space:nowrap;max-width:29ch;margin:2px 0 0;font-size:.76rem;overflow:hidden}.coach-connection{color:#e9e1fc;flex:none;align-items:center;gap:5px;font-size:.68rem;font-weight:700;display:inline-flex}.coach-connection>span{background:#e9c45e;border-radius:50%;width:7px;height:7px}.coach-connection--ollama>span{background:#70e0b5;box-shadow:0 0 0 3px #70e0b526}.coach-connection--fallback>span{background:#ffca5c}.coach-context{color:#645a77;background:#f3f0fa;border-bottom:1px solid #e4def1;grid-template-columns:repeat(3,auto);align-items:center;gap:5px 10px;padding:10px 18px;font-size:.72rem;display:grid}.coach-context>span{white-space:nowrap}.coach-context__live{color:#087269;grid-column:1/-1;align-items:center;gap:5px;font-weight:700;display:inline-flex}.coach-context__live i{background:#19a88e;border-radius:50%;width:6px;height:6px}.coach-transcript{scroll-behavior:smooth;flex:1;min-height:255px;max-height:390px;padding:17px 16px;overflow-y:auto}.coach-empty-state{color:#655d75;text-align:center;place-items:center;min-height:230px;padding:20px;display:grid}.coach-empty-state>span{color:#6b4db0;background:#eee7ff;border-radius:14px;place-items:center;width:44px;height:44px;margin-bottom:10px;font-size:1.4rem;display:grid}.coach-empty-state h3{color:var(--primary-dark);margin:0;font-family:Fredoka,system-ui,sans-serif;font-size:1.12rem}.coach-empty-state p{max-width:31ch;margin:7px 0 0;font-size:.86rem;line-height:1.45}.coach-message{align-items:flex-start;gap:7px;margin-bottom:13px;display:flex}.coach-message>div{background:#eee9f9;border-radius:5px 15px 15px;max-width:88%;padding:10px 12px}.coach-message p{margin:0;font-size:.88rem;line-height:1.45}.coach-message small{color:#756c89;margin-top:7px;font-size:.66rem;font-weight:700;display:block}.coach-message__spark{color:#fff;background:#6b4db0;border-radius:8px;flex:0 0 24px;place-items:center;width:24px;height:24px;font-size:.7rem;display:grid}.coach-message--user{justify-content:flex-end}.coach-message--user>div{color:#fff;background:#6750a4;border-radius:15px 15px 5px}.coach-message--event>div{color:#615873;background:#f0edf6;font-size:.8rem;font-style:italic}.coach-message--thinking>div{min-width:62px}.thinking-dots{align-items:center;gap:4px;height:16px;display:flex}.thinking-dots i{background:#836abf;border-radius:50%;width:6px;height:6px;animation:1s ease-in-out infinite thinking-bounce}.thinking-dots i:nth-child(2){animation-delay:.14s}.thinking-dots i:nth-child(3){animation-delay:.28s}@keyframes thinking-bounce{50%{opacity:.55;transform:translateY(-4px)}}.coach-quick-actions{gap:6px;padding:0 16px 10px;display:flex;overflow-x:auto}.coach-quick-actions button{color:#5b408f;background:#f7f4fd;border:1px solid #cfc3e7;border-radius:999px;flex:none;min-height:34px;padding:6px 9px;font-size:.72rem;font-weight:700}.coach-quick-actions button:hover:not(:disabled){background:#eee7ff;border-color:#7655bd}.coach-quick-actions button:disabled{cursor:not-allowed;opacity:.48}.coach-composer{background:#fff;border-top:1px solid #e4def1;gap:7px;padding:10px 14px;display:flex}.coach-composer input{min-width:0;min-height:43px;color:var(--ink);background:#fbfaff;border:2px solid #d8ceee;border-radius:13px;flex:1;padding:9px 12px}.coach-composer input:focus{border-color:var(--primary)}.coach-composer button{color:#fff;background:var(--primary);border:0;border-radius:13px;flex:0 0 43px;place-items:center;width:43px;min-height:43px;padding:9px;display:grid}.coach-composer button:disabled{cursor:not-allowed;opacity:.45}.coach-composer svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8px;width:23px}.coach-privacy{color:#7a718c;text-align:center;background:#fff;margin:0;padding:0 16px 12px;font-size:.68rem}.coach-disabled-message{color:#6e667e;text-align:center;flex:1;align-content:center;place-items:center;min-height:440px;padding:30px;display:grid}.coach-disabled-message>span{font-size:2.4rem}.coach-disabled-message h3{color:var(--primary-dark);margin:12px 0 0;font-family:Fredoka,system-ui,sans-serif;font-size:1.35rem}.coach-disabled-message p{max-width:30ch;margin:7px 0;font-size:.9rem}.puzzle-utilities{background:#fff;border-top:1px solid #e4def1;justify-content:space-between;align-items:center;gap:12px;padding:16px 18px;display:flex}.game-side-panel .puzzle-utilities h2{margin:0;font-size:1rem}.puzzle-utilities p{color:#756c89;margin:2px 0 0;font-size:.75rem}.puzzle-utilities button{border-radius:11px;min-height:38px;padding:7px 11px;font-size:.78rem}.badge-shelf{background:#fff;border-top:1px solid #e4def1;margin:0;padding:0}.badge-shelf summary{color:var(--primary-dark);cursor:pointer;justify-content:space-between;padding:15px 18px;display:flex}.badge-shelf summary span{color:#756c89;font-size:.78rem;font-weight:400}.badge-shelf>p{margin:0;padding:0 18px 15px;font-size:.85rem}.badge-shelf ul{grid-template-columns:repeat(3,1fr);gap:8px;max-height:230px;margin:0;padding:4px;list-style:none;display:grid;overflow-y:auto}.badge-shelf li{background:#fff7db;border:2px solid #efd17f;border-radius:12px;place-items:center;gap:2px;padding:8px 3px;display:grid}.badge-shelf li span{font-size:2rem}.badge-shelf li small{color:#605775;font-size:.68rem}.completion-banner{background:#fff4c7;border:3px solid #d49300;border-radius:16px;align-items:center;gap:14px;margin-top:18px;padding:16px;display:flex}.completion-banner>span{font-size:3rem}.completion-banner strong{color:var(--primary-dark);font-size:1.25rem}.completion-banner p{margin:4px 0 0}.completion-banner .unlock-message{color:#704b00;margin-top:8px;font-weight:700}.profile-card,.player-home,.resume-card{width:min(760px,100%);box-shadow:var(--shadow);background:#ffffffe6;border:1px solid #6750a41f;border-radius:32px;margin:0 auto;padding:clamp(28px,6vw,60px)}.profile-card h1,.player-home h1,.resume-card h1{font-size:clamp(2.5rem,8vw,4.8rem)}.resume-card>p:not(.eyebrow){font-size:1.15rem;line-height:1.55}.resume-card .resume-note{color:#605775;background:#f2edfc;border-radius:10px;padding:11px 13px;font-size:1rem}.resume-actions{justify-content:flex-end;gap:14px;margin-top:28px;display:flex}.profile-intro,.player-home>p:not(.eyebrow){font-size:1.15rem;line-height:1.55}.profile-form{gap:26px;margin-top:34px;display:grid}.name-field{gap:8px;font-weight:700;display:grid}.name-field input{width:100%;min-height:52px;color:var(--ink);background:#fff;border:2px solid #b9add1;border-radius:12px;padding:10px 14px;font-size:1.2rem}fieldset{border:0;padding:0}legend{margin-bottom:12px;font-weight:700}.avatar-grid{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.avatar-option{cursor:pointer;background:#f4f0fb;border:3px solid #0000;border-radius:18px;place-items:center;min-height:112px;padding:10px;font-weight:700;display:grid}.avatar-option span{font-size:2.5rem}.avatar-option--selected{border-color:var(--primary);background:#eee7ff;box-shadow:inset 0 0 0 2px #fff}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.avatar-option:has(input:focus-visible){outline:4px solid var(--focus);outline-offset:3px}.form-actions{justify-content:flex-end;gap:14px;display:flex}.form-error{color:#741333;background:#fff0f3;border-left:5px solid #b4234d;border-radius:8px;margin:0;padding:12px 14px;font-weight:700}.profile-list{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:34px 0;display:grid}.profile-list button{min-height:150px;color:var(--primary-dark);background:#faf8ff;border:3px solid #ded5ef;border-radius:18px;place-items:center;gap:5px;padding:16px;display:grid}.profile-list button:hover{border-color:var(--primary)}.profile-list button>span{font-size:3rem}.profile-list strong{font-size:1.2rem}.profile-list small{color:#605775}.player-home{text-align:center}.player-home h1{max-width:none}.player-avatar{background:var(--aqua);border:5px solid #fff;border-radius:50%;place-items:center;width:120px;height:120px;margin:-15px auto 22px;font-size:4.5rem;display:grid;box-shadow:0 10px #3eaaa2}.player-stats{justify-content:center;gap:16px;margin:28px 0;display:flex}.player-stats div{background:#f2edfc;border-radius:16px;min-width:130px;padding:16px;display:grid}.player-stats strong{color:var(--primary-dark);font-family:Fredoka,system-ui,sans-serif;font-size:2rem}.player-stats span{color:#605775}.next-step{background:#fff7db;border-radius:12px;padding:12px}.error-card{width:min(600px,100% - 32px);box-shadow:var(--shadow);background:#fff;border-radius:24px;margin:15vh auto;padding:40px}.error-card h1{font-size:clamp(2rem,6vw,3.6rem)}.error-card p{font-size:1.1rem;line-height:1.5}@media (width<=980px){.game-layout{grid-template-columns:1fr}.game-panel{width:min(720px,100%);margin:0 auto}.game-side-panel{width:min(720px,100%);margin:0 auto;position:static}.coach-panel{min-height:520px}.coach-transcript{max-height:340px}}@media (width<=760px){.welcome-card{grid-template-columns:1fr}.hero-grid{width:min(100%,340px);margin:0 auto}}@media (width<=440px){.brand-label{display:none}.brand-mark{place-items:center;width:44px;font-size:1.7rem;display:grid}.header-actions{gap:5px}.active-player{white-space:nowrap;max-width:90px;overflow:hidden}.avatar-grid{grid-template-columns:repeat(2,1fr)}.game-heading{flex-direction:column;align-items:start}.number-pad{grid-template-columns:repeat(5,1fr)}.game-actions{grid-template-columns:1fr 1fr}.game-actions .primary-action{grid-column:1/-1}.form-actions,.resume-actions{flex-direction:column-reverse;align-items:stretch}.coach-toggle{white-space:nowrap;justify-content:center;width:48px;padding:8px;overflow:hidden}.coach-toggle span{flex:0 0 28px}}@media (width<=360px){.active-player{width:44px;padding-inline:8px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}