:root{--color-bg: #eef1f8;--color-bg-alt: #e6ecfb;--color-surface: #ffffff;--color-surface-tint: #fbfcff;--color-text: #14171f;--color-text-muted: #5b6472;--color-border: #c3cbdc;--color-border-soft: #dbe1f0;--color-primary: #2b45c9;--color-primary-light: #4b63e8;--color-primary-dark: #17318f;--color-primary-tint: #e3e9fc;--color-accent: #ffb000;--color-danger: #d92d20;--color-danger-dark: #a3211a;--shadow-xs: 0 1px 2px rgba(20, 23, 31, .08);--shadow-sm: 0 1px 2px rgba(20, 23, 31, .06), 0 3px 8px rgba(20, 23, 31, .1);--shadow-md: 0 2px 4px rgba(20, 23, 31, .08), 0 10px 24px rgba(31, 45, 110, .16);--shadow-lg: 0 4px 10px rgba(20, 23, 31, .1), 0 18px 40px rgba(31, 45, 110, .2);--radius-sm: 10px;--radius-md: 14px;--radius-lg: 20px}.board-page *{box-sizing:border-box}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}html.board-page,body.board-page{height:100vh;height:100dvh;margin:0;overflow:hidden;text-size-adjust:100%;-webkit-text-size-adjust:100%}body.board-page #root{display:contents}body.board-page{font-family:Noto Sans,Noto Sans KR,Noto Sans JP,Noto Sans SC,Noto Sans Arabic,Noto Sans Devanagari,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:linear-gradient(160deg,var(--color-bg-alt) 0%,var(--color-bg) 45%,var(--color-bg) 100%);color:var(--color-text);display:flex;flex-direction:column}.hidden{display:none!important}button{font-family:inherit}button:focus-visible{outline:3px solid var(--color-accent);outline-offset:2px}#lang-select-screen{position:relative;flex:1;min-height:0;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding:16px 24px 5vh;text-align:center;overflow-y:auto}.help-btn{background:linear-gradient(180deg,#eef2ff 0%,var(--color-primary-tint) 100%);color:var(--color-primary-dark);border:none;border-bottom:3px solid #b7c4f0;border-radius:var(--radius-md);font-weight:800;font-size:clamp(16px,1.4vw,20px);padding:14px 24px;cursor:pointer;box-shadow:var(--shadow-sm);transition:transform .08s ease,box-shadow .08s ease}.help-btn:hover{background:linear-gradient(180deg,#e2e9ff,#c9d4f9);transform:translateY(-2px);box-shadow:var(--shadow-md)}.help-btn:active{transform:translateY(1px);border-bottom-width:1px;box-shadow:var(--shadow-sm)}#lang-select-screen .screen-top-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;width:100%;margin-bottom:16px}#lang-select-screen .help-btn{margin-bottom:0}.top-bar-left{display:flex;flex-wrap:wrap;align-items:center;gap:12px}@media (max-width: 420px){#lang-select-screen .screen-top-bar,.top-bar-left{gap:6px;flex-wrap:nowrap}#lang-select-screen .help-btn,#lang-select-screen .account-btn{font-size:12px;padding:8px 10px;white-space:nowrap}.share-btn-icon-only{width:34px;padding:8px 0}}.share-btn{min-width:84px}#share-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px}.share-btn-icon-only{min-width:0;width:48px;padding:14px 0}.share-btn-icon{flex:none}.account-btn{display:inline-block;background:linear-gradient(180deg,#eef2ff 0%,var(--color-primary-tint) 100%);color:var(--color-primary-dark);border:none;border-bottom:3px solid #b7c4f0;border-radius:var(--radius-md);font-weight:800;font-size:clamp(14px,1.2vw,18px);padding:14px 20px;cursor:pointer;box-shadow:var(--shadow-sm);text-decoration:none;transition:transform .08s ease,box-shadow .08s ease}.account-btn:hover{background:linear-gradient(180deg,#e2e9ff,#c9d4f9);transform:translateY(-2px);box-shadow:var(--shadow-md)}.account-btn:active{transform:translateY(1px);border-bottom-width:1px;box-shadow:var(--shadow-sm)}.account-btn-email{cursor:default}.account-btn-email:hover{background:linear-gradient(180deg,#eef2ff 0%,var(--color-primary-tint) 100%);transform:none;box-shadow:var(--shadow-md)}.account-info{display:flex;align-items:center;gap:8px}.account-logout-btn{background:transparent;color:var(--color-primary-dark);border:2px solid #b7c4f0;padding:12px 18px}.account-logout-btn:hover{background:var(--color-primary-tint)}.side-bar-btn.help-btn{width:100%;font-size:clamp(11px,1.3vw,13px);padding:clamp(8px,1.2vh,12px) 6px;white-space:normal;line-height:1.25}.logo{display:block;height:clamp(64px,9vw,120px);width:auto;margin:0 auto 14px;filter:drop-shadow(0 6px 14px rgba(31,45,110,.14))}#lang-select-screen h1{font-size:clamp(17px,5.5vw,40px);font-weight:800;letter-spacing:-.01em;margin-bottom:8px;color:var(--color-text);white-space:nowrap}.mode-toggle{display:flex;gap:12px 14px;margin-bottom:20px;flex-wrap:wrap;justify-content:center}.mode-toggle button{width:230px;padding:14px 16px;font-size:clamp(14px,1.1vw,17px);font-weight:700;border:2px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text);cursor:pointer;box-shadow:var(--shadow-sm);transition:background .15s ease,color .15s ease,border-color .15s ease}.mode-toggle button.active{background:linear-gradient(180deg,var(--color-primary-light) 0%,var(--color-primary) 100%);border-color:var(--color-primary);color:#fff}.trial-hint{margin:-4px 0 20px;font-size:clamp(12px,1vw,14px);color:var(--color-text-muted)}.lang-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;width:100%;max-width:560px}.lang-grid.small{grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:10px;margin-bottom:16px}.lang-grid button{display:flex;align-items:center;justify-content:center;height:clamp(56px,9vw,84px);padding:4px 12px;font-size:clamp(16px,1.4vw,21px);font-weight:700;border:2px solid var(--color-border);border-radius:var(--radius-md);background:linear-gradient(180deg,var(--color-surface) 0%,var(--color-surface-tint) 100%);color:var(--color-text);cursor:pointer;box-shadow:var(--shadow-sm);transition:background .15s ease,color .15s ease,transform .1s ease,box-shadow .15s ease,border-color .15s ease}.lang-grid.small button{height:auto;padding:12px 8px;font-size:15px;border-radius:10px}.lang-grid button:hover,.lang-grid button:focus-visible{background:linear-gradient(180deg,var(--color-primary-light) 0%,var(--color-primary) 100%);border-color:var(--color-primary);color:#fff;box-shadow:var(--shadow-md);transform:translateY(-2px)}.lang-grid button:active{transform:translateY(0)}.footer-links{display:flex;align-items:center;gap:18px;margin-top:44px}.footer-links>a{color:var(--color-text-muted);text-decoration:none;font-size:15px;font-weight:600}.footer-links>a:hover{color:var(--color-primary)}.company-footer{margin-top:20px;font-size:12px;color:var(--color-text-muted)}.company-footer a{color:inherit}#board-screen{flex:1;display:flex;flex-direction:row;height:100vh;height:100dvh;width:100%;background:var(--color-bg)}@media (orientation: landscape){#board-screen{max-width:1100px;margin:0 auto;box-shadow:0 0 0 1px var(--color-border),var(--shadow-md)}}.side-bar{position:relative;display:flex;flex-direction:column;align-items:stretch;gap:clamp(8px,1.4vh,14px);width:clamp(76px,9vw,128px);padding:clamp(10px,1.6vh,18px) clamp(6px,.8vw,12px);background:var(--color-surface);border-right:1px solid var(--color-border);box-shadow:var(--shadow-sm);flex-shrink:0;overflow-y:auto;z-index:1;transition:width .18s ease,padding .18s ease}.side-bar.collapsed{width:0;padding-left:0;padding-right:0;border-right:none;overflow:hidden}.side-bar-logo-btn{display:block;width:100%;flex-shrink:0;padding:0;border:none;background:none;cursor:pointer}.side-bar-logo{width:100%;height:auto;flex-shrink:0;pointer-events:none}.sidebar-toggle{flex-shrink:0;width:clamp(18px,2vw,24px);align-self:stretch;border:none;border-right:1px solid var(--color-border);background:var(--color-surface);color:var(--color-primary-dark);font-size:clamp(14px,1.6vw,18px);font-weight:800;line-height:1;cursor:pointer;z-index:1}.sidebar-toggle:hover{background:var(--color-primary-tint);color:var(--color-primary-dark)}.recalibrate-btn{flex-shrink:0;margin-left:auto;white-space:nowrap;padding:clamp(8px,1vh,10px) clamp(12px,1.2vw,16px);border:1px solid var(--color-primary-light);border-radius:20px;background:linear-gradient(180deg,#eef2ff 0%,var(--color-primary-tint) 100%);color:var(--color-primary-dark);font-size:clamp(14px,1.1vw,16px);font-weight:700;cursor:pointer;box-shadow:var(--shadow-xs)}.recalibrate-btn:hover{background:var(--color-primary-tint)}.scan-speed-control{display:flex;align-items:center;gap:6px;margin-left:auto;flex-shrink:0}.scan-speed-control button{flex-shrink:0;width:clamp(26px,4vh,34px);height:clamp(26px,4vh,34px);border:1px solid var(--color-primary-light);border-radius:50%;background:linear-gradient(180deg,#eef2ff 0%,var(--color-primary-tint) 100%);color:var(--color-primary-dark);font-size:clamp(16px,2vw,20px);font-weight:700;cursor:pointer;box-shadow:var(--shadow-xs)}.scan-speed-control button:hover{background:var(--color-primary-tint)}.scan-speed-control span{font-weight:700;color:var(--color-text);min-width:2.4em;text-align:center}.board-main{flex:1;min-width:0;display:flex;flex-direction:column}.input-row{display:flex;gap:10px;padding:clamp(12px,2vh,22px) clamp(16px,2vw,28px) 0 clamp(16px,2vw,28px);flex-shrink:0}.output{flex:1;min-height:clamp(56px,9vh,72px);max-height:clamp(90px,13vh,112px);padding:14px 16px;background:var(--color-surface);border:2px solid var(--color-border);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);font-size:clamp(22px,1.6vw + 1vh,30px);font-weight:600;line-height:1.3;word-break:break-all;overflow-y:auto;cursor:pointer;color:var(--color-text);transition:box-shadow .15s ease,border-color .15s ease}.output:hover{border-color:#aab6d6;box-shadow:var(--shadow-md)}.output.is-empty:before{content:attr(data-placeholder);color:#8a93a6;font-weight:400;display:block;max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.output.is-empty .caret{display:none}@media (max-width: 420px){.output.is-empty:before{font-size:clamp(14px,4.2vw,22px)}}.output .caret{display:inline-block;width:2px;height:1em;margin-left:2px;background:currentColor;vertical-align:text-bottom;animation:caret-blink 1s step-end infinite}@keyframes caret-blink{50%{opacity:0}}.scroll-buttons{display:flex;flex-direction:column;gap:4px}.scroll-buttons button{width:40px;flex:1;background:var(--color-surface);border:2px solid var(--color-border);border-radius:8px;cursor:pointer;font-size:14px;font-weight:700;color:var(--color-text-muted)}.quick-phrases-row{display:flex;align-items:center;gap:12px;padding:clamp(10px,1.6vh,16px) clamp(16px,2vw,28px) 0 clamp(16px,2vw,28px);flex-shrink:0}.quick-phrases{display:flex;gap:8px;overflow-x:auto;flex:1;min-width:0}.chip{flex-shrink:0;display:flex;align-items:center;gap:8px;background:linear-gradient(180deg,#eef2ff 0%,var(--color-primary-tint) 100%);border:1px solid #c9d4f9;color:var(--color-primary-dark);padding:clamp(8px,1vh,10px) clamp(12px,1.2vw,16px);border-radius:20px;font-size:clamp(14px,1.1vw,16px);font-weight:700;box-shadow:var(--shadow-xs)}.chip-text{cursor:pointer;white-space:nowrap}.chip.scan-highlight{background:var(--color-primary-dark);border-color:var(--color-primary-dark);color:#fff;outline:4px solid var(--color-accent);outline-offset:3px;transform:scale(1.05)}.chip-remove{border:none;background:none;color:#6b78c4;cursor:pointer;font-size:13px;font-weight:700;padding:0}.suggestion-chip{background:#fff4d6;border-color:#f0d38a;color:#8a6a00}.wheel{position:relative;flex:1;min-height:0;overflow:hidden;container-type:size;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-template-rows:minmax(0,1fr) minmax(0,1fr) minmax(0,var(--extra-row-gap)) minmax(0,1fr) minmax(0,1fr);align-content:stretch;align-items:center;justify-items:center;row-gap:clamp(8px,1.4vh,22px);column-gap:clamp(14px,2.2vw,40px);padding:clamp(8px,1.2vh,18px) clamp(14px,3vw,40px);--wheel-row-gap: clamp(8px, 1.4vh, 22px);--wheel-col-gap: clamp(14px, 2.2vw, 40px);--wheel-pad-y: clamp(8px, 1.2vh, 18px);--wheel-pad-x: clamp(14px, 3vw, 40px);--extra-row-gap: clamp(16px, 3.6vh, 60px)}.action-btn,.cluster,.wheel-center-delete{--row-h: calc((100cqh - 4 * var(--wheel-row-gap) - 2 * var(--wheel-pad-y) - var(--extra-row-gap)) / 4);--col-w: calc((100cqw - 2 * var(--wheel-col-gap) - 2 * var(--wheel-pad-x)) / 3);--circle-size: clamp(72px, min(var(--col-w) * .97, var(--row-h) * .96), 360px);display:flex;align-items:center;justify-content:center;flex-wrap:wrap;align-content:center;width:var(--circle-size);height:var(--circle-size);border-radius:50%;background:radial-gradient(120% 140% at 50% -10%,#ffffffe6,#fff0 55%),linear-gradient(175deg,var(--color-surface) 0%,var(--color-surface-tint) 100%);border:3px solid var(--color-border);box-shadow:var(--shadow-sm),inset 0 1px #fff9;cursor:pointer;overflow:hidden;font-size:calc(var(--circle-size) * .24);font-weight:700;line-height:1.05;color:var(--color-text);row-gap:2px;transition:transform .1s ease,box-shadow .15s ease,border-color .15s ease}@supports not (container-type: size){.action-btn,.cluster,.wheel-center-delete{--row-h: calc((var(--wheel-h, 100vh) - 4 * var(--wheel-row-gap) - 2 * var(--wheel-pad-y) - var(--extra-row-gap)) / 4);--col-w: calc((var(--wheel-w, 100vw) - 2 * var(--wheel-col-gap) - 2 * var(--wheel-pad-x)) / 3)}}.action-btn{grid-column:2;grid-row:1;font-size:min(calc(var(--circle-size) * .19),calc(var(--circle-size) * .82 / var(--label-w, 3)))}.action-btn span{display:block;width:94%;overflow:hidden;white-space:nowrap;font-size:min(calc(var(--circle-size) * .19),calc(var(--circle-size) * .82 / var(--label-w, 3)));text-align:center}.cluster-ml{grid-column:1;grid-row:2}.cluster-mr{grid-column:3;grid-row:2}.cluster-bl{grid-column:1;grid-row:4}.cluster-br{grid-column:3;grid-row:4}.cluster-bc{grid-column:2;grid-row:5}.cluster span{flex:0 0 46%;min-width:0;max-width:100%;overflow:hidden;white-space:nowrap;text-align:center;padding:1px 2px}.cluster span.solo-item{flex:0 0 100%;font-size:calc(var(--circle-size) * .42)}.cluster span.cluster-label-multi{flex:0 0 100%}.cluster.empty{visibility:hidden}.action-btn:hover,.cluster:not(.empty):hover{transform:translateY(-2px);box-shadow:var(--shadow-md),inset 0 1px #ffffff80}.action-btn.scan-highlight,.cluster.scan-highlight,.wheel-center-delete.scan-highlight{background:var(--color-primary-dark);border-color:var(--color-primary-dark);color:#fff;outline:4px solid var(--color-accent);outline-offset:3px;transform:scale(1.05);box-shadow:var(--shadow-md);z-index:2}.wheel-center-delete{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.wheel-center-delete.scan-highlight{transform:translate(-50%,-50%) scale(1.05)}.cluster.scan-highlight span.scan-highlight{background:var(--color-accent);color:#1a1200;border-radius:6px;box-shadow:0 0 0 2px #00000026}.wheel-quadrant{display:flex;align-items:center;justify-content:center;padding:clamp(8px,1.2vh,18px) clamp(14px,3vw,40px) clamp(28px,5vh,64px)}.quad-pie{position:relative;width:min(calc(var(--wheel-w, 100cqw) * .92),calc(var(--wheel-h, 100cqh) * .92));height:min(calc(var(--wheel-w, 100cqw) * .92),calc(var(--wheel-h, 100cqh) * .92));max-width:620px;max-height:620px;border-radius:50%;overflow:hidden;border:3px solid var(--color-border);box-shadow:var(--shadow-sm);background:var(--color-surface)}.quad-pie:before,.quad-pie:after{content:"";position:absolute;top:50%;left:50%;width:145%;height:2px;background:var(--color-border);z-index:1}.quad-pie:before{transform:translate(-50%,-50%) rotate(45deg)}.quad-pie:after{transform:translate(-50%,-50%) rotate(-45deg)}.quad-wedge{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;background:var(--color-surface-tint);color:var(--color-text)}.quad-wedge-up{clip-path:polygon(50% 50%,0% 0%,100% 0%);align-items:flex-start;justify-content:center;padding-top:10%}.quad-wedge-right{clip-path:polygon(50% 50%,100% 0%,100% 100%);align-items:center;justify-content:flex-end;padding-right:6%}.quad-wedge-down{clip-path:polygon(50% 50%,100% 100%,0% 100%);align-items:flex-end;justify-content:center;padding-bottom:10%}.quad-wedge-left{clip-path:polygon(50% 50%,0% 100%,0% 0%);align-items:center;justify-content:flex-start;padding-left:6%}.quad-wedge.empty{background:var(--color-surface)}.quad-wedge-label{display:block;font-weight:700;font-size:clamp(15px,4.2cqw,30px);line-height:1.15;text-align:center;overflow-wrap:break-word}.quad-wedge-up .quad-wedge-label,.quad-wedge-down .quad-wedge-label{max-width:56%}.quad-wedge-left .quad-wedge-label,.quad-wedge-right .quad-wedge-label{max-width:24%}.quad-pie-root:before,.quad-pie-root:after{display:none}.quad-pie-root-dividers{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;pointer-events:none;z-index:1}.quad-pie-root-dividers line{stroke:var(--color-border);stroke-width:2px;vector-effect:non-scaling-stroke}.quad-pie-root .quad-wedge-up{clip-path:polygon(50% 50%,21.13% 0%,78.87% 0%)}.quad-pie-root .quad-wedge-right{clip-path:polygon(50% 50%,78.87% 0%,100% 0%,100% 91.96%)}.quad-pie-root .quad-wedge-down{clip-path:polygon(50% 50%,100% 91.96%,100% 100%,0% 100%,0% 91.96%)}.quad-pie-root .quad-wedge-left{clip-path:polygon(50% 50%,0% 91.96%,0% 0%,21.13% 0%)}.quad-pie-root .quad-wedge-up .quad-wedge-label{max-width:44%}.quad-pie-root .quad-wedge-left .quad-wedge-label,.quad-pie-root .quad-wedge-right .quad-wedge-label,.quad-pie-root .quad-wedge-down .quad-wedge-label{max-width:30%}.calib-target-dot{position:absolute;width:16px;height:16px;border-radius:50%;background:#e0362b;border:2px solid #fff;box-shadow:0 0 0 1px #0000004d,var(--shadow-xs);transform:translate(-50%,-50%);z-index:3;pointer-events:none}.quad-wedge-up .calib-target-dot{top:2%;left:50%}.quad-wedge-down .calib-target-dot{top:98%;left:50%}.quad-wedge-left .calib-target-dot{top:50%;left:2%}.quad-wedge-right .calib-target-dot{top:50%;left:98%}.quad-center .calib-target-dot{top:50%;left:50%}.bottom-bar button .calib-target-dot{top:88%}#backspace-btn .calib-target-dot{left:4%}#back-btn .calib-target-dot{left:50%}#space-btn .calib-target-dot{left:96%}.quad-wedge-label-group{display:flex;flex-wrap:wrap;justify-content:center;align-content:center;row-gap:.4em;column-gap:.35em}.quad-wedge-label-group span{flex:0 0 42%;min-width:0}.quad-wedge.scan-highlight{background:var(--color-primary-dark);color:#fff;z-index:2}.quad-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:22%;height:22%;display:flex;align-items:center;justify-content:center;border-radius:50%;border:3px dashed var(--color-primary);background:var(--color-primary-tint);color:var(--color-primary-dark);font-size:clamp(16px,7cqw,32px);font-weight:700;z-index:3}.quad-center.quad-center-back{cursor:default}.quad-center.scan-highlight{border-color:var(--color-primary-dark);background:var(--color-primary-dark);color:#fff;outline:4px solid var(--color-accent);outline-offset:3px;transform:translate(-50%,-50%) scale(1.05)}.bottom-bar{display:flex;flex-shrink:0;border-top:1px solid var(--color-border);box-shadow:0 -4px 12px #14171f0d}.bottom-bar button{flex:1;padding:clamp(16px,2.4vh,24px);font-size:clamp(17px,1.5vw,20px);font-weight:700;border:none;background:var(--color-surface);color:var(--color-text);cursor:pointer;white-space:nowrap;transition:background .12s ease}@media (max-width: 420px){.bottom-bar button{padding:clamp(12px,1.8vh,24px) 6px;font-size:clamp(13px,3.4vw,20px)}}.bottom-bar button+button{border-left:1px solid var(--color-border)}.bottom-bar button:hover{background:var(--color-primary-tint)}.bottom-bar button.scan-highlight{background:var(--color-primary-dark);color:#fff;outline:4px solid var(--color-accent);outline-offset:-4px;z-index:2}.gaze-badge{position:absolute;top:2px;right:6px;font-size:12px;font-weight:700}.bottom-bar button{position:relative}.modal{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0c148c;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;padding:20px;z-index:10}.modal-content{background:var(--color-surface);border-radius:var(--radius-lg);padding:26px;width:100%;max-width:420px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg)}.modal-content h2{margin-top:0;font-size:21px;font-weight:800}.modal-content>div{margin-bottom:22px}.modal-content label{display:block;font-weight:700;margin-bottom:10px;font-size:15px;color:var(--color-text)}.mode-option{display:flex;align-items:center;gap:10px;font-weight:500;margin-bottom:12px;font-size:15px}.mode-option input{width:20px;height:20px;accent-color:var(--color-primary)}#scan-speed{width:100%;accent-color:var(--color-primary)}.modal-content .secondary-btn{display:block;box-sizing:border-box;width:100%;padding:13px;background:var(--color-primary-tint);color:var(--color-primary-dark);border:none;border-radius:var(--radius-sm);font-size:15px;font-weight:700;text-align:center;text-decoration:none;cursor:pointer;margin-top:4px;transition:background .12s ease}.modal-content .secondary-btn:hover{background:#c9d4f9}.modal-content #close-menu{width:100%;padding:14px;background:linear-gradient(180deg,var(--color-primary-light) 0%,var(--color-primary) 100%);color:#fff;border:none;border-radius:var(--radius-sm);font-size:17px;font-weight:700;cursor:pointer;margin-top:14px;box-shadow:var(--shadow-xs);transition:background .12s ease,box-shadow .12s ease}.modal-content #close-menu:hover{background:var(--color-primary-dark);box-shadow:var(--shadow-sm)}.help-modal-content{max-width:720px}.video-frame{position:relative;width:100%;padding-top:56.25%;border-radius:var(--radius-sm);overflow:hidden;background:#000}.video-frame video{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0;background:#000}#close-help,#close-history{width:100%;padding:14px;background:linear-gradient(180deg,var(--color-primary-light) 0%,var(--color-primary) 100%);color:#fff;border:none;border-radius:var(--radius-sm);font-size:17px;font-weight:700;cursor:pointer;margin-top:16px;box-shadow:var(--shadow-xs);transition:background .12s ease,box-shadow .12s ease}#close-help:hover,#close-history:hover{background:var(--color-primary-dark);box-shadow:var(--shadow-sm)}.history-modal-content{max-width:480px}.history-list{max-height:50vh;overflow-y:auto;display:flex;flex-direction:column;gap:8px}.history-empty{color:var(--color-text-muted);text-align:center;padding:20px 0}.history-item{display:flex;flex-direction:column;align-items:flex-start;gap:4px;width:100%;text-align:left;background:var(--color-primary-tint);border:none;border-radius:var(--radius-sm);padding:10px 14px;cursor:pointer;transition:background .12s ease}.history-item:hover{background:#c9d4f9}.history-item-text{font-weight:700;color:var(--color-text);font-size:15px}.history-item-time{font-size:12px;color:var(--color-text-muted)}.modal-content .primary-btn{display:block;box-sizing:border-box;width:100%;padding:14px;background:linear-gradient(180deg,var(--color-primary-light) 0%,var(--color-primary) 100%);color:#fff;border:none;border-radius:var(--radius-sm);font-size:17px;font-weight:700;cursor:pointer;margin-top:6px;box-shadow:var(--shadow-xs);transition:background .12s ease,box-shadow .12s ease}.modal-content .primary-btn:hover{background:var(--color-primary-dark);box-shadow:var(--shadow-sm)}.gaze-target{opacity:.3;cursor:default}.gaze-target.gaze-target-active{opacity:1}.gaze-center-target{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:min(40vw,220px);height:min(40vw,220px);border-radius:50%;border:3px dashed var(--color-primary);background:var(--color-primary-tint);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--color-primary-dark);text-align:center;padding:16px;z-index:5}.blink-hint{margin:0;padding:4px 0 0;text-align:center;flex-shrink:0;font-size:clamp(13px,1.1vw,16px);font-weight:700;color:var(--color-text)}.blink-hint-secondary{padding-top:0;font-size:clamp(11px,.95vw,14px);font-weight:700;color:var(--color-text-muted)}.gaze-hint-bar{position:fixed;left:50%;bottom:clamp(16px,4vh,32px);transform:translate(-50%);background:var(--color-surface);border:2px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:14px 22px;max-width:92vw;text-align:center;z-index:6}.gaze-hint-bar p{margin:0 0 10px;font-weight:600;color:var(--color-text)}:root{--color-bg: #eef1f8;--color-surface: #ffffff;--color-text: #14171f;--color-text-muted: #5b6472;--color-border: #dbe0ee;--color-primary: #2547d0;--color-primary-dark: #17318f;--color-primary-tint: #e3e9fc}*{box-sizing:border-box}body{font-family:Noto Sans,Noto Sans KR,Noto Sans JP,Noto Sans SC,Noto Sans Arabic,Noto Sans Devanagari,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--color-bg);color:var(--color-text);margin:0;line-height:1.6}.site-header{background:var(--color-surface);border-bottom:1px solid var(--color-border);box-shadow:0 1px 2px #14171f0a}.site-nav{max-width:780px;margin:0 auto;padding:16px 20px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}.site-logo{display:flex;align-items:center;text-decoration:none}.site-logo img{height:40px;width:auto;display:block}.site-links{display:flex;gap:18px;flex-wrap:wrap}.site-links a{color:var(--color-text-muted);text-decoration:none;font-size:15px;font-weight:600;transition:color .12s ease}.site-links a:hover,.site-links a.active{color:var(--color-primary)}.site-user-email{color:var(--color-text-muted);font-size:14px}.site-signout-btn{background:none;border:none;color:var(--color-text-muted);font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;padding:0}.site-signout-btn:hover{color:var(--color-primary)}main{max-width:780px;margin:0 auto;padding:40px 20px 64px}main h1{font-size:clamp(28px,4vw,38px);font-weight:800;margin-bottom:8px}main p.lead{color:var(--color-text-muted);font-size:18px;margin-top:0;margin-bottom:36px}main h2{font-size:24px;font-weight:800;margin-top:44px;margin-bottom:14px}main h3{font-size:18px;font-weight:700;margin-top:28px;margin-bottom:8px}main p{margin:0 0 16px}main ul,main ol{margin:0 0 16px;padding-left:24px}main li{margin-bottom:8px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:14px;padding:24px;margin-bottom:20px}.card h3{margin-top:0}.cta-box{background:var(--color-primary-tint);border-radius:14px;padding:28px;text-align:center;margin:40px 0}.cta-box h2{margin-top:0}.btn{display:inline-block;background:var(--color-primary);color:#fff;text-decoration:none;font-weight:700;padding:12px 28px;border-radius:10px;margin-top:8px}.btn:hover{background:var(--color-primary-dark)}.resource-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin:24px 0 36px}.toc{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:18px 24px;margin-bottom:32px}.toc p{font-weight:700;margin-bottom:8px}.toc ul{margin-bottom:0}.site-footer{border-top:1px solid var(--color-border);padding:28px 20px;text-align:center;color:var(--color-text-muted);font-size:13px}.site-footer a{color:var(--color-text-muted)}.note{background:#fff8e6;border:1px solid #f0d38a;border-radius:10px;padding:14px 18px;font-size:14px;color:#6b4f00;margin:20px 0}@media (max-width: 480px){main{padding:28px 16px 48px}main h1{font-size:26px}.card{padding:18px}}