:root{--bg:#07070f;--surface:#0e0e1c;--card:#131320;--border:#1f1f35;--accent:#ff4500;--accent2:#7c3aed;--cyan:#00cfff;--text:#eeeeff;--muted:#55557a;--green:#00bb44;--yellow:#ffcc00;--radius:8px;--header-h:52px;--cbar-h:72px;--footer-h:58px;--touch-target:44px;--mobile-gap:6px;--safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);--safe-left:env(safe-area-inset-left,0px);--safe-right:env(safe-area-inset-right,0px)}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html,body{height:100dvh;min-height:100vh;overflow:hidden;display:flex;flex-direction:column;font-family:'Syne',Arial,sans-serif;background:var(--bg);background-image:linear-gradient(rgba(255,255,255,0.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.06) 1px,transparent 1px);background-size:30px 30px;color:var(--text)}header{display:flex;flex-wrap:nowrap;justify-content:space-between;align-items:center;padding:10px 20px;background:rgba(14,14,28,0.3);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,0.1);height:var(--header-h);flex-shrink:0;z-index:10}.logo{display:flex;align-items:center;gap:10px}.logo-grid{display:grid;grid-template-columns:1fr 1fr;gap:3px;width:28px;height:28px}.logo-grid span{border-radius:3px}.title{font-size:1.2rem;font-weight:800;letter-spacing:1px}.subtitle{font-family:'JetBrains Mono',monospace;font-size:0.55rem;color:var(--muted);letter-spacing:3px;margin-top:-2px}.header-right{display:flex;align-items:center;gap:10px}.lang-toggle{display:flex;gap:3px;padding-right:10px;border-right:1px solid rgba(255,255,255,0.1)}.lang-btn{font-family:'JetBrains Mono',monospace;font-size:0.6rem;font-weight:700;padding:4px 10px;border:1px solid var(--border);border-radius:4px;background:transparent;color:var(--muted);cursor:pointer;transition:all .2s;letter-spacing:0.5px}.lang-btn.active{background:var(--accent2);color:#fff;border-color:var(--accent2)}.lang-btn:hover:not(.active){border-color:var(--cyan);color:var(--text)}.sfx-btn{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border:1px solid var(--border);border-radius:6px;background:transparent;color:var(--text);cursor:pointer;font-size:0.95rem;line-height:1;transition:border-color .15s,background .15s,opacity .15s;margin-right:4px}.sfx-btn:hover{border-color:var(--cyan)}.sfx-btn.muted{opacity:0.5;color:var(--muted)}.mode-toggle{display:flex;gap:4px}.mode-btn{font-family:'JetBrains Mono',monospace;font-size:0.65rem;font-weight:700;padding:5px 14px;border:1px solid var(--border);border-radius:4px;background:transparent;color:var(--muted);cursor:pointer;transition:all .2s}.mode-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}.mode-btn:hover:not(.active){border-color:var(--accent2);color:var(--text)}.app{display:flex;flex:1;min-height:0;overflow:hidden}.sidebar{width:330px;min-width:330px;background:rgba(14,14,28,0.25);backdrop-filter:blur(1.3px);-webkit-backdrop-filter:blur(1.3px);border-right:1px solid rgba(255,255,255,0.1);display:flex;flex-direction:column;overflow:hidden}.tab-bar{display:flex;gap:0;padding:8px 10px 0;flex-wrap:wrap;border-bottom:1px solid rgba(255,255,255,0.1)}.tab{font-family:'JetBrains Mono',monospace;font-size:0.6rem;font-weight:700;padding:6px 10px;background:none;border:none;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;transition:all .2s}.tab.active{color:var(--accent);border-bottom-color:var(--accent)}.tab:hover:not(.active){color:var(--text)}.clist{flex:1;overflow-y:auto;padding:6px;scrollbar-width:thin;scrollbar-color:var(--border) transparent}.case-item{display:flex;flex-direction:column;padding:0;margin-bottom:4px;border-radius:var(--radius);border:1px solid rgba(255,255,255,0.08);background:rgba(19,19,32,0.3);cursor:pointer;transition:all .2s;overflow:hidden}.case-item:hover{border-color:var(--accent2)}.case-item.active{border-color:var(--accent);background:rgba(255,69,0,0.12)}.case-item.expanded{border-color:var(--accent2)}.ci-main{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;gap:8px}.ci-thumb{width:44px;height:44px;border-radius:6px;object-fit:contain;background:rgba(0,0,0,0.25);flex-shrink:0}.ci-info{flex:1;min-width:0}.ci-name{font-size:0.8rem;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ci-algo{font-family:'JetBrains Mono',monospace;font-size:0.55rem;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.badge{font-family:'JetBrains Mono',monospace;font-size:0.5rem;font-weight:700;padding:2px 8px;border-radius:10px;white-space:nowrap;flex-shrink:0}.badge-e{background:rgba(0,187,68,0.18);color:var(--green)}.badge-m{background:rgba(255,204,0,0.15);color:var(--yellow)}.badge-h{background:rgba(255,69,0,0.15);color:var(--accent)}.canvas-wrap{flex:1;position:relative;overflow:hidden;background:transparent}.canvas-wrap canvas{display:block;width:100% !important;height:100% !important;touch-action:none}.canvas-hint{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);font-family:'JetBrains Mono',monospace;font-size:0.6rem;color:var(--muted);pointer-events:none;opacity:0.6;background:rgba(7,7,15,0.3);padding:4px 14px;border-radius:20px}.case-overlay{position:absolute;top:12px;left:12px;z-index:10;background:rgba(14,14,28,0.35);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,0.08);border-radius:var(--radius);padding:8px 14px;pointer-events:none;max-width:280px}.co-toggle{position:absolute;top:4px;right:4px;width:24px;height:24px;padding:0;border:1px solid rgba(255,255,255,0.12);border-radius:6px;background:rgba(0,0,0,0.35);color:var(--text);font-size:0.85rem;line-height:1;cursor:pointer;pointer-events:auto;display:none;align-items:center;justify-content:center;transition:transform 0.2s ease,background 0.2s ease;z-index:2}.co-toggle:hover,.co-toggle:focus-visible{background:rgba(255,255,255,0.08);outline:none}.case-overlay.collapsed .co-body{display:none}.case-overlay.collapsed{padding:4px 32px 4px 10px}.case-overlay.collapsed::after{content:attr(data-collapsed-label);font-family:'JetBrains Mono',monospace;font-size:0.6rem;color:var(--muted);letter-spacing:1px;text-transform:uppercase}.case-overlay.collapsed .co-toggle{transform:rotate(-90deg)}.case-info-overlay{position:absolute;bottom:40px;left:50%;transform:translateX(-50%);background:rgba(14,14,28,0.4);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,0.08);border-radius:12px;padding:16px 24px;z-index:5;box-shadow:0 10px 30px rgba(0,0,0,0.5);text-align:center;min-width:320px;max-width:min(90vw,860px);width:max-content}.co-group{font-size:0.6rem;text-transform:uppercase;letter-spacing:1px;color:var(--cyan);margin-bottom:4px;font-weight:700}.co-img{display:block;width:120px;height:120px;border-radius:6px;border:1px solid var(--border)}.co-setup{font-family:'JetBrains Mono',monospace;font-size:0.65rem;color:var(--muted);margin-top:8px;background:rgba(0,0,0,0.2);padding:6px;border-radius:4px;text-align:center;border:1px solid rgba(255,255,255,0.05);max-width:120px;word-wrap:break-word}.co-setup span{color:var(--text);font-weight:700}.rpanel{width:240px;min-width:240px;background:rgba(14,14,28,0.25);backdrop-filter:blur(1.3px);-webkit-backdrop-filter:blur(1.3px);border-left:1px solid rgba(255,255,255,0.1);padding:12px;display:flex;flex-direction:column;gap:14px;overflow-y:auto}.rp-label{font-family:'JetBrains Mono',monospace;font-size:0.6rem;font-weight:700;color:var(--muted);letter-spacing:2px;margin-bottom:8px}.mlog{max-height:200px;overflow-y:auto;display:flex;flex-direction:column;gap:3px}.mli{display:flex;align-items:center;gap:8px;padding:4px 8px;border-radius:4px;font-family:'JetBrains Mono',monospace;font-size:0.72rem;background:rgba(19,19,32,0.3);border:1px solid rgba(255,255,255,0.08);transition:all .2s}.mli.cur{border-color:var(--cyan);background:rgba(0,207,255,0.08)}.mli.done{opacity:0.5}.mli-n{color:var(--muted);font-size:0.6rem;width:16px}.mli-m{font-weight:700}.mli-check{color:var(--green);margin-left:auto}.tipbox{font-size:0.78rem;line-height:1.5;padding:10px;background:rgba(19,19,32,0.3);border:1px solid rgba(255,255,255,0.08);border-radius:var(--radius);color:var(--text)}.tipbox strong{color:var(--cyan)}.color-legend{display:grid;grid-template-columns:1fr 1fr;gap:6px;font-family:'JetBrains Mono',monospace;font-size:0.65rem}.color-legend div{display:flex;align-items:center;gap:6px}.color-legend span{display:inline-block;width:12px;height:12px;border-radius:2px;border:1px solid rgba(255,255,255,0.1)}.cbar{display:flex;align-items:center;justify-content:center;padding:10px 20px;background:rgba(14,14,28,0.3);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-top:1px solid rgba(255,255,255,0.1);min-height:72px;flex-shrink:0;gap:24px;flex-wrap:wrap}.case-title{font-size:1.1rem;font-weight:800}.algo-row{display:flex;flex-direction:column;align-items:center;justify-content:center;flex-wrap:nowrap;gap:5px;margin-top:8px;overflow-x:auto;overflow-y:visible;padding:4px 6px 10px;scrollbar-width:none;-ms-overflow-style:none}.algo-row::-webkit-scrollbar{display:none}.mv{font-family:'JetBrains Mono',monospace;font-size:0.68rem;font-weight:700;padding:2px 5px;border-radius:4px;background:rgba(0,207,255,0.08);border:1px solid transparent;transition:all .2s;flex-shrink:0;white-space:nowrap}.mv.cur{background:rgba(255,107,0,0.18);border-color:var(--accent);box-shadow:0 0 0 2px var(--accent),0 0 8px rgba(255,107,0,0.4);color:var(--accent) !important}.mv.done{background:rgba(0,187,68,0.1);color:var(--green) !important;opacity:0.6}.algo-moves{display:flex;flex-wrap:nowrap;gap:5px;align-items:center;overflow-x:auto;scrollbar-width:none}.nm-group{display:inline-flex;gap:5px;align-items:center;border-bottom:2px solid var(--nm-color,#ff9944);border-radius:0 0 3px 3px;padding-bottom:2px;position:relative}.nm-badges{display:flex;gap:6px;margin-top:5px;flex-wrap:wrap;justify-content:center}.nm-badge{font-size:0.58rem;font-weight:700;font-family:'JetBrains Mono',monospace;letter-spacing:0.03em;padding:2px 7px;border-radius:10px;border:1px solid var(--nm-color,#ff9944);color:var(--nm-color,#ff9944);background:color-mix(in srgb,var(--nm-color,#ff9944) 12%,transparent);white-space:nowrap;text-transform:uppercase}.cbar-center{display:flex;gap:6px;flex-shrink:0}.cbar-center button,.cbar-right button{font-family:'JetBrains Mono',monospace;font-size:0.7rem;font-weight:700;padding:8px 16px;border:1px solid rgba(255,255,255,0.08);border-radius:6px;background:rgba(19,19,32,0.3);color:var(--text);cursor:pointer;transition:all .2s}.cbar-center button:hover:not(:disabled){border-color:var(--accent2)}.cbar-center button:disabled{opacity:0.35;cursor:default}.btn-primary{background:var(--accent) !important;color:#fff !important;border-color:var(--accent) !important}.btn-primary:hover:not(:disabled){filter:brightness(1.2);box-shadow:0 0 12px rgba(255,69,0,0.4)}.cbar-right{display:flex;align-items:center;gap:8px;flex-shrink:0;font-family:'JetBrains Mono',monospace;font-size:0.65rem;color:var(--muted)}.cbar-right input[type=range]{width:70px;accent-color:var(--accent)}.step-counter{background:rgba(19,19,32,0.3);padding:4px 10px;border-radius:4px;border:1px solid rgba(255,255,255,0.08);font-weight:700;color:var(--text)}.hamburger{display:none;background:var(--accent);color:#fff;border:none;width:40px;height:40px;border-radius:8px;font-size:1.2rem;cursor:pointer;align-items:center;justify-content:center;flex-shrink:0}.sidebar-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.75);z-index:90;pointer-events:auto}.sidebar-backdrop.show{display:block}body.body-drawer-open{overflow:hidden}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.site-footer{display:flex;align-items:center;justify-content:center;flex-shrink:0;gap:6px;height:28px;padding:15px 16px;background:rgba(14,14,28,0.25);backdrop-filter:blur(1.3px);-webkit-backdrop-filter:blur(1.3px);border-top:1px solid rgba(255,255,255,0.1);font-size:0.65rem;color:var(--muted)}.site-footer a{color:var(--cyan);text-decoration:none;font-weight:600}.site-footer a:hover{color:#fff;text-decoration:underline}.heart{display:inline-block;animation:heartbeat 1.2s ease-in-out infinite}@keyframes heartbeat{0%,100%{transform:scale(1)}50%{transform:scale(1.25)}}.bmc-btn{display:inline-flex;align-items:center;gap:6px;margin-left:8px;padding:3px 12px 3px 8px;background:#FFDD00;color:#000 !important;font-family:'Cookie',cursive;font-size:0.7rem;font-weight:400;text-decoration:none !important;border-radius:6px;transition:transform 0.2s,box-shadow 0.2s;line-height:1}.bmc-btn img{height:16px;width:auto}.bmc-btn span{color:#000}.bmc-btn:hover{transform:scale(1.08);box-shadow:0 0 14px rgba(255,221,0,0.5);color:#000 !important}.sao-panel{border-top:1px solid rgba(124,58,237,0.2);background:rgba(7,7,20,0.6);padding:4px 6px;animation:saoFadeIn 0.18s ease}@keyframes saoFadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.sao-item{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:6px;border:1px solid transparent;cursor:pointer;transition:all 0.15s;margin-bottom:3px}.sao-item:last-child{margin-bottom:0}.sao-item:hover{background:rgba(124,58,237,0.12);border-color:rgba(124,58,237,0.3)}.sao-item.active{background:rgba(124,58,237,0.18);border-color:rgba(124,58,237,0.5)}.sao-dot{width:6px;height:6px;border-radius:50%;background:var(--muted);flex-shrink:0;transition:background 0.15s}.sao-item.active .sao-dot{background:#a78bfa;box-shadow:0 0 6px #a78bfa}.sao-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.sao-label{font-family:'Syne',sans-serif;font-size:0.72rem;font-weight:700;color:#d4b4fe;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sao-item.active .sao-label{color:#e9d5ff}.sao-moves{font-family:'JetBrains Mono',monospace;font-size:0.52rem;color:var(--cyan);opacity:0.75;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sao-steps{font-family:'JetBrains Mono',monospace;font-size:0.5rem;color:var(--muted);flex-shrink:0;white-space:nowrap}.ci-multi-badge{display:inline-block;font-family:'JetBrains Mono',monospace;font-size:0.5rem;font-weight:700;padding:1px 5px;border-radius:8px;background:rgba(124,58,237,0.25);color:#b07ef5;border:1px solid rgba(124,58,237,0.4);vertical-align:middle;margin-left:3px}.tab-notation{font-size:1rem;padding:4px 8px;flex-shrink:0}.notation-panel{height:100%;overflow-y:auto;padding:0 0 80px;scrollbar-width:none}.notation-panel::-webkit-scrollbar{display:none}.np-header{padding:14px 14px 8px;border-bottom:1px solid rgba(255,255,255,0.07);margin-bottom:4px}.np-title{font-family:'Syne',sans-serif;font-size:0.9rem;font-weight:800;color:var(--text);letter-spacing:0.05em}.np-sub{font-size:0.6rem;color:var(--muted);margin-top:2px}.np-group{margin:8px 10px;background:rgba(255,255,255,0.035);border:1px solid rgba(255,255,255,0.07);border-radius:10px;overflow:hidden}.np-group-title{font-family:'Syne',sans-serif;font-size:0.7rem;font-weight:800;color:var(--text);padding:8px 12px 2px;letter-spacing:0.04em}.np-group-sub{font-size:0.55rem;color:var(--muted);padding:0 12px 6px;border-bottom:1px solid rgba(255,255,255,0.06)}.np-rows{padding:4px 0}.np-row{display:flex;align-items:center;gap:8px;padding:5px 12px;transition:background .15s}.np-row:hover{background:rgba(255,255,255,0.04)}.np-move{font-family:'JetBrains Mono',monospace;font-size:0.8rem;font-weight:700;min-width:28px;text-align:center;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.1);border-radius:5px;padding:2px 3px;flex-shrink:0}.np-dir{font-size:0.85rem;color:var(--muted);min-width:14px;text-align:center;flex-shrink:0}.np-info{display:flex;flex-direction:column;gap:1px;min-width:0}.np-label{font-family:'JetBrains Mono',monospace;font-size:0.6rem;font-weight:700;color:var(--text);white-space:nowrap}.np-note{font-size:0.55rem;color:var(--muted);line-height:1.3}.np-row-clickable{cursor:pointer}.np-row-clickable:hover{background:rgba(255,107,0,0.08)}.np-row-clickable:hover .np-play-btn{opacity:1;transform:scale(1)}.np-row-active{background:rgba(255,107,0,0.12) !important;border-left:2px solid var(--accent);padding-left:10px}.np-row-active .np-move{box-shadow:0 0 8px currentColor}.np-play-btn{margin-left:auto;flex-shrink:0;background:var(--accent);border:none;border-radius:50%;width:22px;height:22px;font-size:0.55rem;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;transform:scale(0.8);transition:opacity .2s,transform .2s;flex-shrink:0}.np-play-btn:hover{filter:brightness(1.25)}#np-demo-toast{position:absolute;top:18px;left:50%;transform:translateX(-50%) translateY(-10px);background:rgba(10,10,24,0.88);border:1px solid rgba(255,107,0,0.4);border-radius:12px;padding:8px 20px;display:flex;align-items:center;gap:10px;backdrop-filter:blur(8px);pointer-events:none;opacity:0;transition:opacity .25s,transform .25s;z-index:50;white-space:nowrap}#np-demo-toast.np-toast-show{opacity:1;transform:translateX(-50%) translateY(0)}#np-demo-toast.np-toast-hide{opacity:0;transform:translateX(-50%) translateY(-8px)}.np-toast-label{font-family:'JetBrains Mono',monospace;font-size:0.6rem;color:var(--muted);text-transform:uppercase;letter-spacing:0.08em}.np-toast-move{font-family:'JetBrains Mono',monospace;font-size:1.5rem;font-weight:700;line-height:1;text-shadow:0 0 12px currentColor}.oll-group{border-bottom:1px solid rgba(255,255,255,0.05)}.oll-group-header{display:flex;align-items:center;gap:8px;padding:8px 12px;cursor:pointer;background:rgba(255,107,0,0.06);border-left:3px solid var(--accent);user-select:none;transition:background .15s;position:sticky;top:0;z-index:5}.oll-group-header:hover{background:rgba(255,107,0,0.12)}.oll-group-header.collapsed{border-left-color:rgba(255,255,255,0.15);background:rgba(255,255,255,0.02)}.oll-group-chevron{font-size:0.75rem;color:var(--accent);flex-shrink:0;transition:color .15s}.oll-group-header.collapsed .oll-group-chevron{color:var(--muted)}.oll-group-name{font-size:0.65rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:var(--text);flex:1}.oll-group-count{font-size:0.55rem;background:var(--accent);color:#fff;border-radius:10px;padding:1px 6px;font-weight:700;flex-shrink:0}.oll-group-body{transition:none}@media (max-width:1023px){.rpanel{display:none}.sidebar{width:260px;min-width:260px}}@media (max-width:640px){:root{--header-h:88px;--cbar-h:104px;--footer-h:40px}html,body{height:auto;min-height:100dvh;overflow-x:hidden;overflow-y:auto}body.body-drawer-open{overflow:hidden}.canvas-wrap{flex:1 1 auto;min-height:60vh}.app{flex:1 1 auto;min-height:60vh;overflow:visible}header{flex-direction:row;flex-wrap:wrap;height:auto;min-height:var(--header-h);padding:8px 14px;gap:8px;align-items:center}.logo{flex:1;min-width:0;order:1}.hamburger{display:inline-flex;order:2}.header-right{order:3;width:100%;justify-content:center;gap:8px}.title{white-space:nowrap}.mode-btn{padding:5px 10px}.sidebar{display:flex;position:fixed;top:auto;left:0;right:0;bottom:0;width:100%;min-width:0;height:min(75vh,560px);max-height:75vh;transform:translateY(100%);transition:transform 0.3s cubic-bezier(0.32,0.72,0,1);border-top-left-radius:16px;border-top-right-radius:16px;border-right:none;background:var(--surface);backdrop-filter:none;-webkit-backdrop-filter:none;z-index:99;overflow-y:auto;will-change:transform;box-shadow:0 -8px 24px rgba(0,0,0,0.4)}.sidebar.open{transform:translateY(0)}.sidebar::before{content:'';position:sticky;top:0;display:block;width:40px;height:4px;margin:8px auto 4px;border-radius:2px;background:rgba(255,255,255,0.25);z-index:1;flex-shrink:0}.hamburger{display:block}.cbar{padding:6px 8px;flex-wrap:wrap;height:auto;min-height:0;gap:6px;row-gap:6px}.cbar-left{width:100%}.cbar-center{gap:4px;flex-wrap:nowrap}.cbar-center button,.cbar-right button{padding:6px 8px;font-size:0.6rem}.cbar-right{gap:6px;font-size:0.55rem}.cbar-right input[type=range]{width:60px}.step-counter{padding:3px 6px}.site-footer{font-size:0.55rem;gap:4px;padding:6px 12px;height:auto;min-height:28px}.case-overlay{top:8px;left:8px;padding:6px 8px;max-width:44vw}.case-info-overlay{position:absolute;bottom:12px;left:8px;right:8px;transform:none;min-width:0;max-width:none;width:auto;padding:10px 12px}.case-title{font-size:0.95rem}.algo-row{margin-top:6px;padding:4px 0 6px;overflow:visible}.algo-moves{flex-wrap:wrap;justify-content:center;overflow:visible;gap:4px}.mv{font-size:0.62rem;padding:2px 4px}.nm-group{flex-wrap:wrap}.canvas-hint{display:none}.co-toggle{display:inline-flex}.co-img{width:88px;height:88px}.co-group{font-size:0.55rem;margin-bottom:2px;padding-right:26px}.co-setup{font-size:0.6rem;padding:4px;margin-top:6px;max-width:88px}}@media (max-width:380px){.subtitle{letter-spacing:1.5px;font-size:0.5rem}}.trainer-panel{height:100%;overflow-y:auto;padding:0 0 80px;scrollbar-width:none}.trainer-panel::-webkit-scrollbar{display:none}.tab-trainer{color:var(--cyan)}.tr-header{padding:14px 14px 8px;border-bottom:1px solid rgba(255,255,255,0.07);margin-bottom:4px}.tr-title{font-family:'Syne',sans-serif;font-size:0.9rem;font-weight:800;color:var(--text);letter-spacing:0.05em}.tr-sub{font-size:0.6rem;color:var(--muted);margin-top:3px;line-height:1.4}.tr-section{padding:10px 12px;border-bottom:1px solid rgba(255,255,255,0.05)}.tr-label{font-family:'Syne',sans-serif;font-size:0.62rem;font-weight:700;color:var(--muted);letter-spacing:0.08em;text-transform:uppercase;margin-bottom:6px;display:block}.tr-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}.tr-row .tr-label{margin-bottom:0}.tr-scramble{font-family:'JetBrains Mono',monospace;font-size:0.78rem;color:var(--text);background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);border-radius:6px;padding:8px 10px;line-height:1.6;word-break:break-word;margin-bottom:8px}.tr-select{background:rgba(255,255,255,0.05);color:var(--text);border:1px solid rgba(255,255,255,0.1);border-radius:5px;padding:4px 8px;font-family:'Syne',sans-serif;font-size:0.7rem;cursor:pointer}.tr-select:disabled{opacity:0.5;cursor:not-allowed}.tr-btn{width:100%;padding:9px 12px;border:1px solid transparent;border-radius:6px;font-family:'Syne',sans-serif;font-size:0.78rem;font-weight:700;letter-spacing:0.04em;cursor:pointer;transition:all .15s}.tr-btn:disabled{opacity:0.55;cursor:not-allowed}.tr-btn-primary{background:var(--accent);color:#fff}.tr-btn-primary:hover:not(:disabled){background:#ff5d1a}.tr-btn-secondary{background:rgba(255,255,255,0.06);color:var(--text);border-color:rgba(255,255,255,0.12)}.tr-btn-secondary:hover:not(:disabled){background:rgba(255,255,255,0.1)}.tr-info{margin-top:8px;font-size:0.7rem;color:var(--muted)}.tr-opt-info b{color:var(--text)}.tr-sol-section{border-bottom:none}.tr-sol-hint{font-size:0.6rem;color:var(--muted);margin-bottom:6px;font-style:italic}.tr-empty{font-size:0.7rem;color:var(--muted);padding:10px;text-align:center;background:rgba(255,255,255,0.03);border-radius:6px}.tr-sol{display:flex;align-items:center;gap:10px;padding:8px 10px;margin-bottom:5px;background:rgba(255,255,255,0.035);border:1px solid rgba(255,255,255,0.07);border-radius:6px;cursor:pointer;transition:background .12s,border-color .12s}.tr-sol:hover{background:rgba(255,255,255,0.07);border-color:rgba(255,255,255,0.15)}.tr-sol.active{background:rgba(255,69,0,0.12);border-color:var(--accent)}.tr-sol-len{font-family:'JetBrains Mono',monospace;font-size:0.7rem;font-weight:700;min-width:24px;text-align:center;padding:2px 5px;border-radius:4px;flex-shrink:0}.tr-tag-opt{background:rgba(0,207,255,0.18);color:var(--cyan);border:1px solid rgba(0,207,255,0.3)}.tr-tag-extra{background:rgba(255,255,255,0.06);color:var(--muted);border:1px solid rgba(255,255,255,0.1)}.tr-sol-moves{font-family:'JetBrains Mono',monospace;font-size:0.78rem;color:var(--text);flex:1;word-break:break-word;line-height:1.4}.tr-sol.active .tr-sol-moves{color:var(--text);font-weight:700}