*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans KR",sans-serif;color:#162033;background:#fff;line-height:1.62}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.wrap{width:min(1120px,calc(100% - 32px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#111;color:#fff;padding:10px;z-index:999}.topbar{height:72px;border-bottom:1px solid #e8edf3;display:flex;align-items:center;padding:0 max(16px,calc((100% - 1120px)/2));gap:30px;position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);z-index:20}.brand{display:flex;align-items:center;gap:9px;font-size:20px;font-weight:900;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:12px;background:#176bff;color:#fff;font-size:15px}.topnav{display:flex;align-items:center;gap:24px;margin-left:auto;font-weight:700;font-size:14px}.topnav a:hover{color:#176bff}.profile{display:flex;align-items:center;gap:7px}.profile img{width:28px;height:28px;border-radius:50%}.google-mini{border:1px solid #d6dce6;padding:8px 12px;border-radius:10px}.menu-btn{display:none;background:none;border:0;font-size:24px}.mobile-menu{position:fixed;left:12px;right:12px;top:76px;background:#fff;border:1px solid #e1e6ee;border-radius:16px;padding:12px;z-index:80;box-shadow:0 16px 40px #1d2d4920}
.mobile-menu[hidden]{display:none!important}
.mobile-menu:not([hidden]){display:flex;flex-direction:column;gap:4px}
.mobile-menu a{display:block;padding:13px;border-radius:10px;font-weight:800}
.mobile-menu a.nav-shorts{display:flex;align-items:center;justify-content:center;min-height:52px;font-size:20px}.flash{width:min(1120px,calc(100% - 32px));margin:14px auto 0;background:#eef5ff;color:#174ea6;border:1px solid #cfe0ff;padding:12px 15px;border-radius:12px;font-weight:700}.hero{display:grid;grid-template-columns:1.25fr .75fr;gap:56px;padding-top:72px;padding-bottom:56px;align-items:center}.eyebrow,.kicker{color:#176bff;font-weight:900;font-size:12px;letter-spacing:.12em}.hero h1,.page-head h1{font-size:clamp(38px,6vw,66px);line-height:1.09;letter-spacing:-.05em;margin:13px 0 18px}.hero h1 em{font-style:normal;color:#176bff}.hero p{font-size:18px;color:#5c687a;max-width:650px}.hero-actions{display:flex;gap:10px;margin-top:28px}.btn{display:inline-flex;justify-content:center;align-items:center;padding:13px 18px;border-radius:12px;border:1px solid transparent;font-weight:900;cursor:pointer}.btn.primary{background:#176bff;color:#fff}.btn.ghost{background:#fff;border-color:#d9e0ea}.btn.block{display:flex;width:100%}.google-box{margin-top:18px}.google-btn{display:inline-flex;align-items:center;gap:13px;border:1px solid #dfe3ea;border-radius:14px;padding:11px 18px;background:#fff;box-shadow:0 4px 14px #14213d0d}.google-btn .gmark{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;border:1px solid #e2e5ea;color:#4285f4;font-weight:900}.google-btn span:last-child{display:flex;flex-direction:column}.google-btn small{color:#7b8797}.hero-card{background:linear-gradient(145deg,#f0f6ff,#f9fbff);border:1px solid #dce8ff;border-radius:28px;padding:34px;box-shadow:0 22px 70px #176bff18}.hero-card h3{font-size:24px;margin:20px 0 8px}.hero-card p{font-size:15px;margin:0}.brain-orbit{height:180px;position:relative;display:grid;place-items:center}.brain{font-size:76px;filter:drop-shadow(0 10px 22px #176bff30)}.brain-orbit i{position:absolute;border:1px dashed #7cabff;border-radius:50%;width:150px;height:150px;animation:spin 12s linear infinite}.brain-orbit i:nth-child(2){width:115px;height:170px;transform:rotate(50deg)}.brain-orbit i:nth-child(3){width:170px;height:95px;transform:rotate(-30deg)}@keyframes spin{to{transform:rotate(360deg)}}.emergency{display:flex;align-items:center;gap:16px;background:#fff5f5;border:1px solid #ffd7d7;border-radius:18px;padding:18px 20px}.emergency-icon{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:#e62929;color:#fff;font-weight:1000}.emergency div:nth-child(2){display:flex;flex-direction:column;flex:1}.emergency span{color:#745d5d;font-size:14px}.emergency>a{background:#e62929;color:#fff;border-radius:12px;padding:10px 16px;font-weight:900}.section{padding-top:70px;padding-bottom:70px}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;margin-bottom:22px}.section-head h2{font-size:31px;letter-spacing:-.04em;margin:3px 0}.section-head>a{font-weight:900;color:#176bff}.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.post-card{border:1px solid #e3e8ef;border-radius:18px;padding:20px;min-height:220px;display:flex;flex-direction:column;transition:.2s}.post-card:hover{transform:translateY(-3px);box-shadow:0 15px 35px #1a2f5612;border-color:#bfd3ff}.post-card h3{font-size:19px;line-height:1.4;margin:12px 0 8px}.post-card p{color:#687486;font-size:14px;margin:0}.pill{display:inline-flex;background:#edf4ff;color:#176bff;border-radius:999px;padding:5px 9px;font-size:12px;font-weight:900;width:max-content}.pill.small{padding:3px 7px;font-size:11px}.meta{margin-top:auto;display:flex;justify-content:space-between;color:#8993a2;font-size:12px;gap:10px}.feature-band{background:#f6f8fb;padding:34px 0}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.feature{background:#fff;border:1px solid #e6eaf0;border-radius:16px;padding:18px;display:flex;gap:12px}.feature>span{font-size:25px}.feature b{font-size:17px}.feature p{margin:4px 0 0;color:#6c7787;font-size:13px}.split{display:grid;grid-template-columns:1.5fr .7fr;gap:34px;align-items:start}.list{border-top:1px solid #e3e8ef}.list a{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:15px 4px;border-bottom:1px solid #edf0f4}.list small{color:#8993a2}.today-card{background:#14213d;color:#fff;padding:26px;border-radius:22px;position:sticky;top:92px}.today-card .kicker{color:#8db5ff}.today-card h2{font-size:27px;margin:5px 0 18px}.today-card p{color:#c9d2e1}.stack-form{display:grid;gap:12px}.stack-form label{display:grid;gap:5px;font-size:13px;font-weight:800}.stack-form input,.editor input,.editor textarea,.editor select,.comment-form textarea,.ai-box textarea{width:100%;border:1px solid #d9e0e9;border-radius:11px;padding:11px;background:#fff;color:#1a2536}.today-card input{background:#fff;color:#111}.page-head{padding-top:58px;padding-bottom:30px}.page-head h1{font-size:clamp(34px,5vw,52px);margin:8px 0 8px}.page-head p{color:#687486;font-size:16px;max-width:750px}.tabs{display:flex;gap:8px;overflow:auto;padding-bottom:8px}.tabs a{white-space:nowrap;border:1px solid #dde3eb;border-radius:999px;padding:8px 13px;font-size:13px;font-weight:800}.tabs a.on{background:#176bff;color:#fff;border-color:#176bff}.narrow-top{padding-top:28px}.board-actions{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.small-btn{padding:8px 13px}.board-list{border-top:2px solid #1b2740}.board-list>a{display:grid;grid-template-columns:1fr auto;gap:24px;padding:19px 5px;border-bottom:1px solid #e6eaf0}.board-list h3{margin:7px 0 4px;font-size:18px}.board-list p{margin:0;color:#6f7a89;font-size:14px}.board-meta{text-align:right;display:flex;flex-direction:column;justify-content:center;color:#8490a0;font-size:12px}.empty{padding:40px;text-align:center;color:#7c8795;background:#f7f9fc;border-radius:15px}.article{max-width:850px;padding-top:45px}.back{color:#176bff;font-weight:800}.article-head{padding:25px 0 20px;border-bottom:1px solid #e5eaf0}.article-head h1{font-size:38px;line-height:1.3;letter-spacing:-.035em;margin:13px 0}.article-body{font-size:17px;line-height:2;padding:36px 0;min-height:160px}.source-card{background:#f3f7ff;border:1px solid #d8e6ff;border-radius:14px;padding:16px;display:flex;flex-direction:column;word-break:break-all}.source-card a{color:#176bff}.comments{max-width:850px;padding-bottom:70px}.comments h2{border-top:1px solid #e3e8ef;padding-top:25px}.comment{border-bottom:1px solid #edf0f4;padding:15px 0}.comment>div{display:flex;justify-content:space-between}.comment small{color:#8e98a6}.comment p{margin:5px 0}.comment-form{display:grid;gap:10px;margin-top:20px}.comment-form textarea{min-height:110px}.login-note{display:block;background:#f4f7fb;border-radius:12px;padding:15px;text-align:center;font-weight:800;color:#176bff}.form-page{max-width:800px;padding-top:55px;padding-bottom:80px}.form-page h1{font-size:42px;margin:8px 0}.form-page>p{color:#687486}.editor{display:grid;gap:18px;margin-top:28px}.editor label{display:grid;gap:7px;font-weight:800}.editor small{font-weight:500;color:#8190a2}.profile-head{display:flex;align-items:center;gap:18px}.profile-head img{width:72px;height:72px;border-radius:50%}.profile-head .btn{margin-left:auto}.timeline{display:grid;gap:12px}.timeline article{border:1px solid #e1e7ef;border-radius:16px;padding:17px}.timeline time{font-size:12px;color:#8491a2;font-weight:900}.timeline p{display:grid;grid-template-columns:90px 1fr;gap:8px;margin:8px 0}.timeline p b{color:#176bff}.ai-layout{display:grid;grid-template-columns:1.4fr .6fr;gap:22px;align-items:start}.ai-box{border:1px solid #dee5ee;border-radius:22px;padding:28px}.ai-avatar{width:56px;height:56px;background:#176bff;color:#fff;border-radius:18px;display:grid;place-items:center;font-weight:1000}.ai-box h2{font-size:28px}.ai-box form{display:grid;gap:10px}.ai-box textarea{min-height:130px}.answer{margin-top:18px;background:#eef5ff;border-radius:15px;padding:17px}.answer b{color:#176bff}.safety-card{background:#fff7ec;border:1px solid #ffe0b5;border-radius:20px;padding:24px}.safety-card h3{margin-top:0}.safety-card p{font-size:13px;color:#765d38}.neuro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.neuro-card{border:1px solid #e1e6ed;border-radius:20px;padding:22px}.neuro-card h2{font-size:20px}.neuro-card p{color:#687486}.motion{height:120px;background:#f4f8ff;border-radius:16px;display:flex;align-items:center;justify-content:center;gap:20px;font-size:50px}.arrow{color:#176bff;font-weight:1000}.note{background:#f7f9fc;border:1px solid #e3e7ed;border-radius:16px;padding:18px;margin-bottom:70px}.source-list{display:grid;gap:12px}.source-list>a{border:1px solid #e0e6ee;border-radius:16px;padding:18px;display:flex;justify-content:space-between;align-items:center;gap:20px}.source-list h2{font-size:19px;margin:0}.source-list p{margin:5px 0 0;color:#6f7a88}.source-list span{color:#176bff;font-weight:900;white-space:nowrap}.prose{max-width:850px;padding-bottom:80px}.prose h2{margin-top:30px}.prose pre{white-space:pre-wrap;background:#111827;color:#fff;border-radius:12px;padding:14px;overflow:auto}.notice{background:#fff7e7;padding:14px;border-radius:12px}.check-list{display:grid;gap:10px;max-width:760px}.check-list div{display:grid;grid-template-columns:38px 1fr auto;gap:10px;align-items:center;border:1px solid #e0e6ee;border-radius:13px;padding:13px}.check-list span{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-weight:1000}.check-list .ok span{background:#e8f8ef;color:#118447}.check-list .bad span{background:#fff0f0;color:#d82f2f}.check-list em{font-style:normal;color:#7c8797}.footer{background:#101827;color:#cbd3df;padding:35px max(16px,calc((100% - 1120px)/2)) 90px;font-size:13px}.footer strong{color:#fff}.footer-links{display:flex;gap:15px;margin:9px 0}.footer-links a{color:#8db5ff}.footer p{max-width:850px;color:#8f9cad}.bottom-nav{display:none}
@media(max-width:820px){body{padding-bottom:70px}.topbar{height:62px}.topnav{display:none}.menu-btn{display:block;margin-left:auto}.hero{grid-template-columns:1fr;padding-top:42px;gap:25px}.hero-card{padding:22px}.hero h1{font-size:43px}.hero p{font-size:16px}.emergency{align-items:flex-start}.emergency>a{display:none}.post-grid{grid-template-columns:1fr 1fr}.feature-grid{grid-template-columns:1fr 1fr}.split,.ai-layout{grid-template-columns:1fr}.today-card{position:static}.neuro-grid{grid-template-columns:1fr}.bottom-nav{display:grid;grid-template-columns:repeat(6,1fr);position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid #dfe5ed;z-index:25;padding-bottom:env(safe-area-inset-bottom)}.bottom-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;height:62px;font-weight:900;font-size:16px}.bottom-nav small{font-size:10px}.bottom-nav .write{color:#176bff}.footer{padding-bottom:100px}}
@media(max-width:560px){.wrap{width:min(100% - 22px,1120px)}.hero{padding-top:32px}.hero h1{font-size:37px}.hero-actions{display:grid}.google-btn{width:100%}.emergency{padding:14px}.emergency-icon{width:47px;height:47px;flex:0 0 auto}.section{padding-top:48px;padding-bottom:48px}.section-head{align-items:flex-start}.section-head h2{font-size:25px}.post-grid,.feature-grid{grid-template-columns:1fr}.post-card{min-height:180px}.board-list>a{grid-template-columns:1fr}.board-meta{text-align:left}.article-head h1{font-size:29px}.article-body{font-size:16px}.profile-head{align-items:flex-start;flex-wrap:wrap}.profile-head .btn{margin-left:0}.source-list>a{align-items:flex-start;flex-direction:column}.list a{grid-template-columns:auto 1fr}.list small{display:none}}
.practice-flow{display:flex;gap:9px;align-items:center;overflow:auto;background:#f3f7ff;border:1px solid #dce8ff;border-radius:16px;padding:15px}.practice-flow b{white-space:nowrap;font-size:13px}.practice-flow span{color:#176bff}.practice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.practice-card{position:relative;border:1px solid #e1e7ef;border-radius:20px;padding:24px;background:#fff}.practice-card h2{margin:0 0 15px;padding-left:38px}.practice-no{position:absolute;top:22px;left:22px;width:28px;height:28px;border-radius:9px;background:#176bff;color:#fff;display:grid;place-items:center;font-weight:900}.practice-card dl{display:grid;grid-template-columns:105px 1fr;gap:9px;margin:0}.practice-card dt{font-weight:900;color:#176bff}.practice-card dd{margin:0;color:#596677}.quick-rehab{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.quick-rehab a{display:flex;flex-direction:column;border:1px solid #e0e7f0;border-radius:16px;padding:18px;background:#f9fbff}.quick-rehab b{font-size:18px}.quick-rehab span{font-size:13px;color:#687486;margin-top:5px}@media(max-width:820px){.practice-grid{grid-template-columns:1fr}.quick-rehab{grid-template-columns:1fr}}@media(max-width:560px){.practice-card dl{grid-template-columns:1fr}.practice-card dt{margin-top:7px}}
/* Evidence, story and video pages */
.virtual-head{padding-bottom:20px}.virtual-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}.virtual-stats>div{border:1px solid #dce5f0;background:#f8fbff;border-radius:16px;padding:16px;display:flex;flex-direction:column}.virtual-stats small{color:#687486;font-weight:800}.virtual-stats b{font-size:28px;color:#176bff}.virtual-controls{display:flex;gap:12px;align-items:end;flex-wrap:wrap;margin-bottom:16px}.virtual-controls label{display:grid;gap:5px;font-size:13px;font-weight:900}.virtual-controls select{min-width:180px;padding:10px 34px 10px 12px;border:1px solid #d9e0e9;border-radius:11px;background:#fff}.virtual-stage{border:1px solid #dce4ee;border-radius:26px;padding:clamp(20px,4vw,38px);box-shadow:0 18px 50px #172b4d12;min-height:440px}.virtual-progress{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.virtual-progress #progressText{margin-left:auto;color:#7b8797;font-size:13px}.question-visual{font-size:76px;text-align:center;padding:18px}.virtual-stage h2{font-size:clamp(24px,4vw,34px);letter-spacing:-.03em;margin:28px 0 22px}.choice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.choice{border:2px solid #dce4ef;background:#fff;border-radius:16px;padding:17px;text-align:left;font-weight:850;cursor:pointer;min-height:62px}.choice:hover{border-color:#8db5ff;background:#f6f9ff}.choice:disabled{cursor:default;color:#263247}.choice.correct{border-color:#21a56b;background:#eaf9f1}.choice.wrong{border-color:#e65353;background:#fff0f0}.virtual-feedback{margin-top:20px;border-radius:16px;padding:18px}.virtual-feedback.good{background:#eaf9f1;border:1px solid #bcebd4}.virtual-feedback.try{background:#fff7e8;border:1px solid #ffe0a8}.virtual-feedback>b{font-size:20px}.virtual-feedback p{margin:7px 0 14px}.virtual-feedback>div{display:flex;gap:9px}.memory-panel{min-height:300px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:#f3f7ff;border-radius:20px;padding:25px}.memory-panel small{font-weight:900;color:#176bff}.memory-panel strong{font-size:clamp(28px,6vw,48px);margin:22px 0}.virtual-note{margin-top:26px}.virtual-home-callout{display:flex;align-items:center;justify-content:space-between;gap:20px;background:linear-gradient(135deg,#f1f6ff,#eefbf6);border:1px solid #dce9f2;border-radius:24px;padding:28px}.virtual-home-callout h2{margin:4px 0;font-size:28px}.virtual-home-callout p{margin:4px 0;color:#687486}
@media(max-width:760px){.virtual-stats{grid-template-columns:repeat(2,1fr)}.virtual-controls{display:grid;grid-template-columns:1fr 1fr}.virtual-controls label,.virtual-controls select,.virtual-controls .btn{width:100%;min-width:0}.virtual-controls .btn{grid-column:1/-1}.choice-grid{grid-template-columns:1fr}.virtual-stage{min-height:520px}.virtual-home-callout{align-items:flex-start;flex-direction:column}.virtual-home-callout .btn{width:100%}}
.video-embed{width:100%;aspect-ratio:16/9;border:0;border-radius:16px;margin-bottom:16px}
.memory-panel[hidden]{display:none!important}
.evidence-grid,.video-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.evidence-card,.video-card{background:#fff;border:1px solid #e3ebe8;border-radius:22px;padding:24px;box-shadow:0 10px 30px rgba(25,60,50,.06)}.evidence-card h2,.video-card h2{margin:12px 0;font-size:1.3rem}.evidence-card dl{margin:16px 0}.evidence-card dt{font-weight:800;color:#20634f;margin-top:12px}.evidence-card dd{margin:4px 0 0;line-height:1.7}.evidence-card a{display:inline-block;margin-top:14px;font-weight:800;color:#16624c}.video-placeholder{height:130px;border-radius:16px;background:linear-gradient(135deg,#daf2ea,#edf7ff);display:grid;place-items:center;font-size:42px;color:#dc3d3d;margin-bottom:16px}.video-card p,.evidence-card p{line-height:1.75}.evidence-home{padding-top:10px}@media(max-width:760px){.evidence-grid,.video-grid{grid-template-columns:1fr}.evidence-card,.video-card{padding:19px}.topnav a:nth-of-type(4),.topnav a:nth-of-type(5){display:none}}