.experience-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:0 0 14px;padding:12px 14px;background:var(--paper);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.experience-bar label{font-size:11px;color:var(--muted);display:flex;align-items:center;gap:7px}.experience-bar select,.experience-bar button,.view-controls button{background:var(--surface);border:1px solid var(--line);color:var(--ink);border-radius:9px;padding:7px 9px;font-size:12px}.experience-bar input[type=range]{width:70px;accent-color:var(--accent)}.experience-bar .recording{color:#ff7e91;border-color:#ff7e91;animation:record-pulse 1.4s infinite}.experience-bar #game-lab-open{margin-inline-start:auto;color:var(--accent)}
#board-3d{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 40%,#284665 0,#121e32 65%,#090f1c 100%);border-radius:18px;overflow:hidden}#board-3d canvas{width:100%;height:100%;display:block;cursor:pointer;touch-action:manipulation}.board-frame{position:relative}body[data-board-view=table] .board-rim,body[data-board-view=cinema] .board-rim{visibility:hidden}.view-controls{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:10px;z-index:3;padding:7px 10px;border:1px solid #8fcfff44;border-radius:30px;background:#0d1824d9;backdrop-filter:blur(12px);color:#c4e6ff}.view-controls input{width:90px;accent-color:#83cfff}.view-controls button{padding:2px 12px;background:#223a52;color:#eefaff;border-color:#406987}.view-controls small{font-size:10px}.view-controls[hidden],#board-3d[hidden]{display:none}.board-finish{z-index:4}
.hub-dialog{width:min(1120px,96vw);max-width:1120px;height:min(900px,94dvh);max-height:94dvh;padding:0;border:1px solid var(--line);border-radius:24px;background:var(--cream);color:var(--ink);box-shadow:0 40px 120px #0009;overflow:hidden;font-family:Manrope,system-ui,sans-serif}.hub-dialog::backdrop{background:#030b19bf;backdrop-filter:blur(10px)}.hub-shell{height:100%;display:flex;flex-direction:column}.hub-head{display:flex;justify-content:space-between;align-items:center;padding:22px 28px;background:var(--paper);border-bottom:1px solid var(--line);gap:10px}.hub-brand{display:flex;align-items:center;gap:12px}.hub-brand img{height:42px;width:42px;object-fit:contain}.hub-brand strong{display:block;font-size:20px;letter-spacing:-.6px}.hub-brand small{font-size:10px;color:var(--muted);letter-spacing:2px}.hub-tabs{display:flex;gap:3px;padding:8px 22px;background:var(--paper);border-bottom:1px solid var(--line);overflow:auto;flex-shrink:0}.hub-tabs button{border:0;white-space:nowrap;background:none;color:var(--muted);padding:11px 17px;border-radius:12px;font-size:13px;font-weight:700}.hub-tabs button.active{background:color-mix(in srgb,var(--accent) 13%,var(--paper));color:var(--accent)}.hub-tabs button[hidden]{display:none}#hub-content{overflow:auto;padding:28px;flex:1;overscroll-behavior:contain}.hub-hero{position:relative;background:radial-gradient(ellipse at 100% 0%,color-mix(in srgb,var(--accent) 22%,transparent),transparent 60%),var(--paper);padding:30px;border:1px solid var(--line);border-radius:20px;margin-bottom:20px}.hub-hero h2{font-size:clamp(24px,3vw,36px);font-weight:800;letter-spacing:-1px;margin:10px 0}.hub-hero p{color:var(--muted);max-width:650px;font-size:14px;line-height:1.7;margin:0}.hub-kicker{font-size:10px;letter-spacing:2px;color:var(--accent);font-weight:800}.hub-grid{display:grid;gap:18px;margin-bottom:18px}.hub-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.hub-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.hub-card{background:var(--paper);border:1px solid var(--line);padding:24px;border-radius:18px;min-width:0;margin-bottom:18px}.hub-grid>.hub-card{margin:0}.hub-card h3{font-size:17px;font-weight:800;line-height:1.4;margin:0 0 17px}.hub-card h4{font-size:13px;font-weight:800;margin:20px 0 8px}.hub-card p,.hub-card li{font-size:13px;line-height:1.8}.hub-muted{color:var(--muted);font-size:12px;line-height:1.8}.hub-button{display:inline-flex;justify-content:center;align-items:center;border:1px solid var(--line);border-radius:10px;padding:10px 15px;background:var(--surface);color:var(--ink);font-weight:700;font-size:12px;text-decoration:none;margin:4px 6px 4px 0;cursor:pointer;transition:transform .15s,border-color .15s}.hub-button:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}.hub-button.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.hub-button:disabled{opacity:.45;cursor:not-allowed}.hub-form{display:grid;gap:12px}.hub-field{font-size:11px;display:grid;gap:6px;color:var(--muted);font-weight:700}.hub-field input,.hub-field select{border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:11px 12px;border-radius:9px;min-width:0;width:100%;font-size:14px}.hub-field input:focus,.hub-field select:focus{outline:2px solid var(--accent);outline-offset:2px}.hub-check{display:flex;gap:10px;font-size:12px;line-height:1.6}.hub-check input,.hub-answer input{accent-color:var(--accent)}#hub-message{font-size:13px;background:var(--paper);padding:0 28px;color:var(--accent);flex-shrink:0;max-height:100px;overflow:auto}#hub-message:not(:empty){padding:13px 28px;border-bottom:1px solid var(--line)}#hub-message.error{color:var(--danger,#e37b88)}.hub-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(125px,1fr));gap:12px;margin-bottom:20px}.hub-stats>div{display:grid;gap:7px;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:22px}.hub-stats strong{font-size:30px;letter-spacing:-1px;color:var(--accent)}.hub-stats span{font-size:11px;color:var(--muted)}.hub-dialog progress{display:block;appearance:none;width:100%;height:7px;border:0;border-radius:10px;margin:22px 0 5px;overflow:hidden;background:var(--surface);accent-color:var(--accent)}.hub-dialog progress::-webkit-progress-bar{background:var(--surface)}.hub-dialog progress::-webkit-progress-value{background:var(--accent);border-radius:10px}.course-icon{display:block;color:var(--accent);font-size:34px;margin-bottom:18px}.course-lessons{display:grid;gap:8px}.course-lessons button{display:grid;grid-template-columns:26px 1fr;gap:5px 10px;text-align:start;background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:13px;color:var(--ink);font-size:12px}.course-lessons button span{grid-row:span 2;color:var(--accent);font-weight:800}.course-lessons small{color:var(--muted);font-size:9px}.course-lessons [aria-disabled=true]{opacity:.6}.hub-lesson{display:grid;grid-template-columns:1.2fr 1fr;gap:28px}.hub-lesson h2{font-size:28px;margin:12px 0}.hub-lesson p{font-size:13px;line-height:1.8}.lesson-board{display:grid;grid-template-columns:repeat(8,1fr);border:7px solid var(--sidebar-bg);border-radius:12px;overflow:hidden;max-width:480px;margin-top:20px;aspect-ratio:1}.lesson-square{position:relative;border:0;padding:4px;background:var(--light-square,#bfd5df);aspect-ratio:1;display:grid;place-items:center}.lesson-square.dark{background:var(--dark-square,#416281)}.lesson-square img{width:88%;height:88%;pointer-events:none}.lesson-square.selected{box-shadow:inset 0 0 0 4px #f5cd68}.lesson-square small{position:absolute;bottom:1px;left:3px;font-size:8px;color:#172d3c}.lesson-square.dark small{color:#e6f2fa}.hub-answer{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:10px;padding:12px;font-size:12px}.hub-table-wrap{overflow:auto;max-height:450px}.hub-table-wrap table{width:100%;font-size:12px;border-collapse:collapse}.hub-table-wrap th{font-size:10px;letter-spacing:.5px;text-transform:uppercase;color:var(--muted);position:sticky;top:0;background:var(--paper)}.hub-table-wrap td,.hub-table-wrap th{text-align:start;padding:12px 8px;border-bottom:1px solid var(--line);white-space:nowrap}.hub-table-wrap tr[data-hub]{cursor:pointer}.hub-table-wrap tr[data-hub]:hover{background:var(--surface)}.accuracy-number{font-size:52px;letter-spacing:-3px;color:var(--accent)}.accuracy-number small{font-size:20px}.move-grade{display:inline-block;padding:4px 8px;border-radius:5px;background:var(--surface)}.move-grade.blunder{color:#fb7288}.move-grade.mistake{color:#f4b067}.move-grade.good{color:var(--accent)}.plan-price{font-size:32px;font-weight:800;letter-spacing:-1.5px}.plan-price small{font-size:12px;letter-spacing:0;color:var(--muted)}.hub-card.featured{border-color:var(--accent);box-shadow:0 0 35px color-mix(in srgb,var(--accent) 10%,transparent)}.hub-banner{padding:14px 18px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--muted);font-size:12px}.otp-enrollment{display:flex;gap:24px;align-items:center;flex-wrap:wrap;margin-bottom:25px}.otp-enrollment img{width:220px;height:220px;background:white;padding:12px;border-radius:14px}.otp-enrollment code{overflow-wrap:anywhere;font-size:14px}.otp-enrollment>div{flex:1;min-width:200px}.recovery-codes{padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:12px;font-size:16px;line-height:2;letter-spacing:2px;user-select:all;color:var(--ink)}.moderation-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0;border-bottom:1px solid var(--line)}.moderation-row p{margin:5px 0;overflow-wrap:anywhere}.moderation-row>div{min-width:0}.review-pulse{font-size:64px;color:var(--accent);text-align:center;animation:record-pulse 1.4s infinite}.hub-loading{padding:80px;text-align:center;color:var(--muted)}@keyframes record-pulse{50%{opacity:.45}}@media(prefers-reduced-motion:reduce){.review-pulse,.experience-bar .recording{animation:none}.hub-button{transition:none}}@media(max-width:760px){.hub-grid.three,.hub-grid.two,.hub-lesson{grid-template-columns:1fr}.hub-head{padding:16px}.hub-tabs{padding:7px}.hub-tabs button{padding:10px 12px}#hub-content{padding:16px}.hub-hero{padding:23px}.hub-hero h2{font-size:26px}.experience-bar{gap:8px}.hub-card{padding:20px}.hub-dialog{width:98vw;border-radius:18px}.hub-loading{padding:40px}.hub-lesson .lesson-board{margin:auto;width:100%}.hub-stats{grid-template-columns:repeat(2,1fr)}}