:root{color:#24334a;font-synthesis:none;text-rendering:optimizelegibility;--ink:#1e2d43;--muted:#68778c;--line:#e4e9f0;--blue:#3569b4;--board-light:#f1f4f8;--board-dark:#779bc0;background:#f5f7fa;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;margin:0}button,input,textarea{font:inherit}button{cursor:pointer;touch-action:manipulation}button:disabled{cursor:default;opacity:.4}button,input,textarea{-webkit-tap-highlight-color:transparent}button:focus-visible,input:focus-visible,textarea:focus-visible{outline-offset:3px;outline:3px solid #719ee0}button{color:inherit}h1,h2,h3,p{margin:0}.training-app{max-width:1740px;margin:0 auto}.app-header{border-bottom:1px solid var(--line);background:#fff;justify-content:space-between;align-items:center;gap:16px;padding:18px 28px;display:flex}.brand{align-items:center;gap:12px;display:flex}.brand-icon{width:44px;height:44px;color:var(--blue);background:#eef3fb;border-radius:12px;place-items:center;display:grid}.club-name{letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin-bottom:3px;font-size:10px;font-weight:700;display:block}h1{letter-spacing:-.8px;color:var(--ink);font-size:23px;font-weight:700;line-height:1.1}.brand-dot{color:var(--blue)}.header-context{align-items:center;gap:20px;display:flex}.local-badge{border:1px solid var(--line);white-space:nowrap;color:#526780;border-radius:6px;align-items:center;gap:7px;padding:7px 10px;font-size:11px;font-weight:600;display:inline-flex}.local-badge>span{background:#7a8da6;border-radius:50%;width:6px;height:6px}.workspace-label{color:var(--muted);font-size:12px}.training-layout{grid-template-columns:minmax(210px,1fr) minmax(0,2.25fr) minmax(260px,1.08fr);align-items:start;gap:22px;padding:26px 28px 10px;display:grid}.collaboration-area,.controls-area,.board-area{min-width:0}.panel-stack{gap:16px;display:grid}.panel-card{border:1px solid var(--line);background:#fff;border-radius:10px;overflow:hidden}.panel-title{border-bottom:1px solid #edf0f5;justify-content:space-between;align-items:center;gap:8px;min-height:52px;padding:14px 16px;display:flex}.panel-title h2{white-space:nowrap;align-items:center;gap:8px;font-size:13px;font-weight:650;display:flex}.panel-title h2 svg{color:#798ba4;flex-shrink:0}.quiet-label{color:#7a8799;text-align:right;font-size:10px}.empty-state{text-align:center;padding:28px 20px}.empty-icon{color:#8a9ab1;background:#f4f6f9;border-radius:50%;place-items:center;width:54px;height:54px;margin:0 auto 16px;display:grid}.empty-state h3{margin-bottom:8px;font-size:14px;font-weight:650}.empty-state p{color:var(--muted);max-width:245px;margin:0 auto;font-size:12px;line-height:1.75}.panel-footnote{text-align:center;color:#7e8a9c;background:#fafbfd;border-top:1px solid #edf0f5;padding:12px 14px;font-size:10px}.chat-panel .empty-state{padding-top:46px;padding-bottom:46px}.board-guide{background:#edf3fb;border:1px solid #dce6f3;border-radius:10px;padding:22px}.guide-icon{width:30px;height:30px;color:var(--blue);background:#dfeafa;border-radius:8px;place-items:center;margin-bottom:14px;display:grid}.board-guide h2{letter-spacing:-.2px;font-size:15px;font-weight:650}.board-guide p{color:#617795;margin-top:6px;font-size:12px}.board-guide dl{gap:10px;margin:20px 0 16px;font-size:11px;display:grid}.board-guide dl>div{justify-content:space-between;align-items:center;gap:8px;display:flex}.board-guide dt{color:#586e8b}.board-guide dd{white-space:nowrap;background:#fff;border:1px solid #dde5f1;border-radius:4px;margin:0;padding:3px 6px;font-size:10px}.board-guide small{color:#6f829c;font-size:10px;line-height:1.7;display:block}.board-area{width:100%;max-width:820px;margin:0 auto}.board-heading{justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px;display:flex}.eyebrow{letter-spacing:.1em;text-transform:uppercase;color:#7b8ba1;margin-bottom:6px;font-size:10px;font-weight:600}.board-heading h2{letter-spacing:-.65px;overflow-wrap:anywhere;font-size:23px;font-weight:650;line-height:1.2}.board-badge{color:#627792;white-space:nowrap;background:#e9eef5;border-radius:5px;padding:6px 9px;font-size:10px;font-weight:600}.board-player{align-items:center;gap:8px;padding:0 2px 12px;font-size:12px;display:flex}.board-player strong{font-weight:600}.board-player>span:last-child{color:#8491a2;text-align:right;margin-left:auto;font-size:10px}.piece-side{border-radius:50%;flex-shrink:0;width:10px;height:10px}.piece-side.black{background:#26364b}.piece-side.white{background:#fff;border:1px solid #bec9d8}.bottom-player{padding-top:13px;padding-bottom:14px}.bottom-player .game-status{color:#4c637e!important}.board-shell{border-radius:5px;position:relative;box-shadow:0 8px 24px #25394b12}.chessboard{aspect-ratio:1;touch-action:none;-webkit-user-select:none;user-select:none;border-radius:5px;grid-template-rows:repeat(8,minmax(0,1fr));grid-template-columns:repeat(8,minmax(0,1fr));width:100%;display:grid;position:relative;overflow:hidden}.square{-webkit-user-select:none;user-select:none;touch-action:none;border:0;border-radius:0;place-items:center;width:100%;min-width:0;height:100%;min-height:0;padding:0;line-height:1;display:grid;position:relative}.square.light{background:var(--board-light)}.square.dark{background:var(--board-dark)}.square.last-move:before,.square.selected:before{content:"";background:#e1c45e55;position:absolute;inset:0}.square.selected:before{background:#244f7e4d}.square.legal:after{content:"";aspect-ratio:1;pointer-events:none;z-index:3;background:#21365233;border-radius:50%;width:25%;position:absolute}.square.legal:has(.piece):after{background:0 0;border:4px solid #24436966;width:90%;height:90%}.square:focus-visible{outline-offset:-3px;z-index:4}.piece{z-index:3;object-fit:contain;pointer-events:none;-webkit-user-select:none;user-select:none;width:85%;height:85%;display:block;position:relative}.square.drag-source .piece{opacity:0}.square-highlight{z-index:1;pointer-events:none;position:absolute;inset:0}.highlight-green .square-highlight{background:#21876e26;box-shadow:inset 0 0 0 3px #21876eb3}.highlight-red .square-highlight{background:#cd4f5d26;box-shadow:inset 0 0 0 3px #cd4f5db3}.highlight-yellow .square-highlight{background:#bb8b2826;box-shadow:inset 0 0 0 3px #bb8b28b3}.coord,.file{z-index:3;pointer-events:none;font-size:clamp(9px,1vw,12px);font-weight:600;position:absolute}.coord{top:4px;left:4px}.file{bottom:4px;right:4px}.light .coord,.light .file{color:#678caf}.dark .coord,.dark .file{color:#f1f5fb}.board-arrows{pointer-events:none;z-index:2;width:100%;height:100%;position:absolute;inset:0}.drag-piece{z-index:30;pointer-events:none;-webkit-user-select:none;user-select:none;position:fixed;transform:translate(-50%,-50%)}.move-navigation{border:1px solid var(--line);background:#fff;border-radius:8px;justify-content:space-between;align-items:center;gap:14px;padding:10px 14px;display:flex}.move-counter{gap:4px;font-size:11px;display:grid}.move-counter strong{font-weight:600}.move-counter>span{color:#8693a5;font-size:10px}.navigation-buttons{gap:4px;display:flex}.navigation-buttons button{background:0 0;border:0;border-radius:5px;place-items:center;width:39px;height:35px;display:grid}.navigation-buttons button:hover:not(:disabled){color:var(--blue);background:#edf3fb}.board-help{color:#77879b;text-align:center;padding:12px 6px 0;font-size:10px;line-height:1.6}.feedback{color:#356b57;text-align:center;min-height:27px;padding:8px 6px 0;font-size:11px}.interaction-mode{background:#f0f3f8;border-radius:7px;gap:3px;margin:14px 14px 8px;padding:3px;display:flex}.interaction-mode button{color:#78879d;background:0 0;border:0;border-radius:5px;flex:1;justify-content:center;align-items:center;gap:6px;padding:8px 6px;font-size:11px;font-weight:600;display:flex}.interaction-mode button[aria-pressed=true]{color:#3569b4;background:#fff;box-shadow:0 1px 3px #2539580d}.tool-buttons{padding:0 8px 10px;display:grid}.tool-buttons button{text-align:left;background:0 0;border:0;border-radius:6px;align-items:center;gap:10px;min-height:38px;padding:8px;font-size:11px;display:flex}.tool-buttons button svg{color:#7c8aa0}.tool-buttons button:hover:not(:disabled){background:#f2f6fc}.annotation-count{color:#8190a5;margin-left:auto;font-size:10px}.compact-empty{padding:18px 16px;font-size:11px;line-height:1.7}.compact-empty span{color:#8693a5;font-size:10px}.move-list{gap:3px;max-height:210px;margin:0;padding:10px;list-style:none;display:grid;overflow:auto}.move-list li{grid-template-columns:28px 1fr 1fr;align-items:center;gap:4px;font-size:12px;display:grid}.move-number{text-align:center;color:#8a97a9;font-variant-numeric:tabular-nums;font-size:11px}.move-list button{text-align:left;background:0 0;border:0;border-radius:4px;padding:7px 9px;font-weight:550}.move-list button:hover{background:#f0f4f9}.move-list button.current-move{color:#3569b4;background:#e6eefb}.switch{background:#d4dce7;border:0;border-radius:20px;width:36px;height:20px;padding:0;position:relative}.switch>span{background:#fff;border-radius:50%;width:14px;height:14px;transition:transform .15s;position:absolute;top:3px;left:3px;box-shadow:0 1px 2px #0001}.switch.on{background:var(--blue)}.switch.on>span{transform:translate(16px)}.engine-note{color:#7a899e;padding:16px;font-size:11px;line-height:1.75}.engine-analysis{padding:14px 16px}.evaluation{align-items:center;gap:12px;display:flex}.evaluation strong{color:var(--ink);font-variant-numeric:tabular-nums;font-size:25px}.evaluation>span{color:#7b8a9f;font-size:10px}.pv-lines{gap:8px;margin-top:10px;display:grid}.pv-lines p{grid-template-columns:42px minmax(0,1fr);gap:8px;font-family:ui-monospace,monospace;font-size:10px;line-height:1.7;display:grid}.pv-lines p>span:first-child{color:#537db2}.save-form{gap:9px;padding:16px 16px 0;display:grid}.save-form label{color:#6d7e95;font-size:10px;font-weight:600}.save-form input{width:100%;min-width:0;color:var(--ink);background:#fafbfd;border:1px solid #dfe6ef;border-radius:6px;padding:10px;font-size:11px}.save-form input::placeholder{color:#94a0b1}.save-actions{align-items:center;gap:8px;display:flex}.primary-button{color:#fff;background:var(--blue);border:0;border-radius:6px;justify-content:center;align-items:center;gap:6px;padding:9px 11px;font-size:11px;font-weight:600;display:inline-flex}.primary-button:hover{background:#285a9f}.text-button{color:#718299;background:0 0;border:0;padding:7px 4px;font-size:10px}.text-button:hover{color:var(--blue)}.storage-note{color:#8794a6;padding:10px 16px 14px;font-size:10px;line-height:1.5}.save-feedback{color:#356b57;padding:0 16px 12px;font-size:10px;line-height:1.5}.engine-analysis .storage-note{padding-bottom:0;padding-left:0}.saved-games{gap:5px;max-height:240px;margin:0;padding:0 10px 10px;list-style:none;display:grid;overflow:auto}.saved-games li{border:1px solid #e8edf4;border-radius:6px;align-items:center;display:flex}.saved-games li.active{background:#f6f9ff;border-color:#adc6eb}.saved-game{text-align:left;background:0 0;border:0;flex:1;gap:4px;min-width:0;padding:9px;display:grid}.saved-game strong{white-space:nowrap;text-overflow:ellipsis;font-size:11px;font-weight:600;overflow:hidden}.saved-game>span{color:#8b97a9;font-size:9px}.icon-button{color:#7f8fa5;background:0 0;border:0;border-radius:5px;place-items:center;min-width:30px;min-height:30px;padding:6px;display:grid}.icon-button:hover{color:var(--blue);background:#edf3fb}.delete-save:hover{color:#b84b5b;background:#fff1f3}.fen-output{resize:vertical;color:#697c95;overflow-wrap:anywhere;background:#fafbfd;border:1px solid #e8edf3;border-radius:5px;width:calc(100% - 32px);min-height:70px;margin:14px 16px 0;padding:10px;font-family:ui-monospace,monospace;font-size:10px;line-height:1.6;display:block}.app-footer{border-top:1px solid var(--line);color:#96a2b2;justify-content:space-between;gap:12px;margin:20px 28px 0;padding:18px 0;font-size:10px;display:flex}.mobile-tabs{display:none}@media (width>=1740px){.app-header{border-right:1px solid var(--line);border-left:1px solid var(--line)}}@media (width<=1150px) and (width>=861px){.training-layout{grid-template-columns:minmax(0,1fr) minmax(240px,.52fr);gap:20px;padding:22px}.board-area{grid-area:1/1}.controls-area{grid-area:1/2/3}.collaboration-area{grid-area:2/1}.collaboration-area .panel-stack{grid-template-columns:1fr 1fr}.collaboration-area .board-guide{grid-column:1/-1}.chat-panel .empty-state{padding:28px 20px}}@media (width<=860px){.app-header{padding:14px 16px}.brand{gap:9px}.brand-icon{border-radius:9px;width:36px;height:36px}.brand-icon svg{width:23px;height:23px}h1{font-size:20px}.club-name{letter-spacing:.1em;font-size:8px}.workspace-label{display:none}.local-badge{padding:6px 8px;font-size:9px}.mobile-tabs{border-bottom:1px solid var(--line);background:#fff;gap:4px;padding:10px 16px;display:flex}.mobile-tabs button{color:#7d8ca1;background:0 0;border:0;border-radius:6px;flex:1;justify-content:center;align-items:center;gap:6px;min-height:36px;font-size:11px;display:flex}.mobile-tabs button[aria-pressed=true]{color:var(--blue);background:#eaf1fc;font-weight:600}.training-layout{padding:18px 14px 0;display:block}.training-layout[data-mobile-tab=board] .collaboration-area,.training-layout[data-mobile-tab=board] .controls-area,.training-layout[data-mobile-tab=collaboration] .board-area,.training-layout[data-mobile-tab=collaboration] .controls-area,.training-layout[data-mobile-tab=controls] .board-area,.training-layout[data-mobile-tab=controls] .collaboration-area{display:none}.board-area{max-width:620px}.board-heading{margin-bottom:14px}.board-heading h2{font-size:22px}.board-player>span:last-child{font-size:9px}.coord,.file{font-size:10px}.panel-title h2{font-size:14px}.tool-buttons button{min-height:44px;font-size:13px}.interaction-mode button,.move-list button,.primary-button{min-height:40px}.navigation-buttons button{width:36px;min-height:40px}.controls-area,.collaboration-area{max-width:620px;margin:0 auto}.app-footer{flex-direction:column;gap:7px;margin:12px 16px 0;padding-top:14px;font-size:9px}}@media (width<=370px){.local-badge{gap:4px;font-size:8px}.brand-icon{display:none}.board-player>span:last-child{font-size:8px}.move-navigation{gap:6px;padding:8px}.navigation-buttons button{width:31px}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important}}select{font:inherit;color:inherit}.training-layout{grid-template-columns:minmax(210px, 1fr) minmax(0, var(--center-width,2.25fr)) minmax(260px, 1.08fr)}.board-area{width:var(--board-width,100%);max-width:1100px}.training-form{gap:12px;padding:14px 16px;display:grid}.training-form form,.game-picker,.editor-settings{gap:10px;display:grid}.training-form label,.editor-settings label,.editor-settings legend{color:var(--muted);gap:6px;font-size:11px;display:grid}.training-form textarea,.training-form select,.editor-settings select,.editor-settings input[type=number]{background:#fafbfd;border:1px solid #dfe6ef;border-radius:6px;width:100%;min-width:0;padding:9px;font-size:11px}.training-form textarea{resize:vertical;font-family:ui-monospace,monospace;line-height:1.6}.file-label input{width:100%;min-width:0;font-size:10px}.file-label input::file-selector-button{color:var(--ink);cursor:pointer;background:#f3f6fb;border:1px solid #dfe6ef;border-radius:5px;margin-right:7px;padding:7px 9px}.form-actions{flex-wrap:wrap;align-items:center;gap:7px;display:flex}.secondary-button{background:#fff;border:1px solid #dfe6ef;border-radius:6px;padding:9px 10px;font-size:11px}.secondary-button:hover{background:#edf3fb}.inline-note{color:var(--muted);font-size:10px;line-height:1.6}.form-error{color:#ad354b;font-size:11px;line-height:1.6}.game-metadata{gap:6px;padding:12px 16px 0;font-size:10px;display:grid}.game-metadata:empty{display:none}.game-metadata>div{grid-template-columns:55px minmax(0,1fr);gap:8px;display:grid}.game-metadata span{color:var(--muted)}.game-metadata strong{overflow-wrap:anywhere;font-weight:550}.mainline-button{margin:8px 12px 0}.tree-list{max-height:320px;display:block}.move-list .tree-row{display:block}.tree-row>button{width:100%}.variation-line{background:#f7f9fd;border-left:2px solid #b4cbed;margin:5px 0 5px 10px;padding:0 0 0 8px;list-style:none}.move-comment{color:var(--muted);overflow-wrap:anywhere;padding:0 9px 6px;font-size:10px;line-height:1.6}.position-dialog{border:1px solid var(--line);width:min(850px,100% - 24px);max-height:calc(100dvh - 32px);color:var(--ink);border-radius:12px;padding:22px;overflow:auto;box-shadow:0 20px 100px #182c4855}.position-dialog::backdrop{background:#162a4666}.editor-heading{justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.editor-heading h2{font-size:21px}.editor-layout{grid-template-columns:minmax(0,1.45fr) minmax(220px,1fr);align-items:start;gap:24px;display:grid}.piece-palette{grid-template-columns:repeat(6,minmax(0,1fr));gap:3px;display:grid}.palette-piece{border:1px solid var(--line);background:#f7f9fc;border-radius:5px;padding:2px}.palette-piece img{width:100%;display:block}.palette-piece[aria-pressed=true],.secondary-button[aria-pressed=true]{border-color:var(--blue);background:#e6eefb}.editor-settings fieldset{border:1px solid var(--line);border-radius:6px;margin:0;padding:9px}.castling-options{grid-template-columns:1fr 1fr;gap:9px;display:grid}.castling-options label{align-items:center;gap:5px;font-size:10px;display:flex}.castling-options input{accent-color:var(--blue);margin:0}.counter-fields{grid-template-columns:1fr 1fr;gap:10px;display:grid}.editor-note{margin-top:10px}@media (width<=1150px) and (width>=861px){.training-layout{grid-template-columns:minmax(0,1fr) minmax(240px,.52fr)}}@media (width<=600px){.editor-layout{grid-template-columns:1fr;gap:14px}.position-dialog{padding:16px}.editor-board{max-width:380px;margin:auto}.piece-palette{max-width:360px}}.board-area{width:100%;container-type:inline-size}.board-area .board-shell{width:var(--board-width,100%);margin:0 auto}@container (width<=320px){.move-navigation{flex-wrap:wrap;justify-content:center}.move-counter{text-align:center;width:100%}}@media (width>=861px){.controls-area{scrollbar-width:thin;max-height:calc(100dvh - 140px);padding-right:3px;position:sticky;top:18px;overflow-y:auto}}.board-resize-handle{z-index:6;width:32px;height:32px;color:var(--blue);cursor:nwse-resize;touch-action:none;background:#fff;border:1px solid #90acd0;border-radius:7px;place-items:center;display:grid;position:absolute;bottom:-8px;right:-8px;box-shadow:0 2px 8px #263f5926}.resize-help{color:var(--muted);text-align:center;margin:10px 0 0;font-size:10px}.auth-page{max-width:480px;margin:50px auto;padding:20px}.auth-card{border:1px solid var(--line);background:#fff;border-radius:12px;margin-top:20px;padding:28px}.auth-card h1{font-size:26px;line-height:1.3}.auth-intro{color:var(--muted);margin:12px 0 20px;font-size:13px;line-height:1.7}.auth-card form,.auth-card label,.dashboard-create form{gap:10px;display:grid}.auth-card form{gap:16px}.auth-card label{font-size:12px}.auth-card input,.dashboard-create input,.training-form input:not([type=checkbox]){width:100%;min-width:0;font:inherit;background:#fafbfd;border:1px solid #dfe6ef;border-radius:6px;padding:10px}.auth-tabs{gap:8px;margin-bottom:20px;display:flex}.auth-tabs button{border:1px solid var(--line);background:#fff;border-radius:6px;flex:1;padding:9px}.auth-tabs button[aria-pressed=true]{color:var(--blue);background:#e6eefb;border-color:#abc2e4}.back-link{color:var(--blue);font-size:12px;text-decoration:none}.dashboard-page{max-width:1000px;margin:auto;padding:28px}.dashboard-header{justify-content:space-between;align-items:center;gap:16px;margin-bottom:25px;font-size:12px;display:flex}.dashboard-create,.session-history{border:1px solid var(--line);background:#fff;border-radius:10px;margin-top:24px;padding:24px}.dashboard-create h2,.session-history h2{margin-bottom:18px;font-size:18px}.dashboard-create form{max-width:600px;font-size:12px}.session-history ul{gap:10px;padding:0;list-style:none;display:grid}.session-history a{color:var(--ink);background:#f5f8fc;border-radius:7px;gap:8px;padding:16px;text-decoration:none;display:grid}.session-history a span,.connection-state{color:var(--muted);font-size:11px}.connection-state.online{color:#25846f}.training-form .checkbox-label{align-items:center;gap:7px;display:flex}.participant-list{gap:12px;margin:0;padding:12px 16px;font-size:12px;list-style:none;display:grid}.participant-list li{align-items:center;gap:8px;display:flex}.participant-list li>span:nth-child(2){flex:1}.participant-list small{color:var(--muted);margin-left:6px;font-size:9px}.presence-dot{background:#bcc6d3;border-radius:50%;flex-shrink:0;width:8px;height:8px}.presence-dot.online{background:#2a9b78}.chat-history{gap:10px;max-height:380px;padding:12px;display:grid;overflow:auto}.chat-message{background:#f6f8fb;border-radius:7px;padding:10px;font-size:12px}.chat-message.highlighted{border-left:3px solid var(--blue);background:#edf3ff}.chat-message header{justify-content:space-between;gap:8px;font-size:10px;display:flex}.chat-message time{color:var(--muted)}.chat-message p{white-space:pre-wrap;overflow-wrap:anywhere;margin-top:7px;line-height:1.6}.chat-form{border-top:1px solid var(--line);gap:8px;padding:12px 16px;font-size:11px;display:grid}.chat-form textarea{border:1px solid var(--line);resize:vertical;border-radius:6px;width:100%;min-width:0;padding:9px}.poll-card{gap:12px;padding:14px 16px;display:grid}.poll-card h3{font-size:13px;line-height:1.5}.poll-card form{gap:12px;display:grid}.poll-options{border:0;gap:8px;margin:0;padding:0;font-size:12px;display:grid}.poll-options legend{color:var(--muted);margin-bottom:10px;font-size:10px}.poll-options label{background:#f4f7fb;border-radius:5px;align-items:center;gap:7px;padding:7px;display:flex}.poll-progress,.own-answer{color:#356b57;font-size:11px;line-height:1.6}.poll-results{gap:10px;margin:0;padding:0;font-size:11px;list-style:none;display:grid}.poll-results li>div{justify-content:space-between;gap:5px;display:flex}.poll-results progress{width:100%;height:6px;accent-color:var(--blue)}.individual-answers{padding-left:16px;font-size:11px}.poll-composer-options{gap:10px;display:grid}.poll-composer-options>div{align-items:end;gap:8px;display:flex}.poll-composer-options label{flex:1;min-width:0}.answer-board .board-shell{max-width:340px;margin:auto}@media (width<=600px){.auth-page{margin-top:20px}.auth-card,.dashboard-create,.session-history{padding:20px}.dashboard-page{padding:16px}.dashboard-header{align-items:start}}.engine-settings{color:var(--muted);grid-template-columns:1fr 1fr;gap:12px;padding:12px 16px 0;font-size:10px;display:grid}.engine-settings label{gap:6px;display:grid}.engine-settings select{border:1px solid var(--line);background:#fafbfd;border-radius:5px;width:100%;padding:6px}.tree-list button:disabled{opacity:1}