@import "https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&family=Noto+Sans+KR:wght@400;500;700;900&display=swap";:root{--bg:#f7f4f0;--surface:#fff;--surface-2:#ede5dc;--surface-hover:#f1ece7;--text:#171516;--text-2:#5b595a;--text-muted:#817b78;--border:#d5cdc4;--border-strong:#beb5ac;--primary:#8e2f32;--primary-hover:#7b262a;--primary-active:#6f1e22;--on-primary:#fff;--accent:#d95b45;--accent-hover:#c94d39;--on-accent:#fff;--secondary:#5b9fc9;--secondary-hover:#4b91bd;--on-secondary:#fff;--card:#fff;--input:#fff;--input-border:#cfc5bb;--link:#397fae;--link-hover:#2e6d98;--selected:#e5f1f8;--selected-border:#5b9fc9;--shadow:#17151614;--success:#4f9d73;--success-bg:#e8f4ed;--on-success:#fff;--error:#c0392f;--error-bg:#fbeae7;--warning:#c98a2e;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--sidebar-width:252px;--mobile-nav-height:72px;--duration-fast:.14s;--ease-standard:ease-out}[data-theme=dark]{--bg:#141213;--surface:#1d1a1b;--surface-2:#262223;--surface-hover:#302b2c;--text:#f3eee9;--text-2:#c9c0b8;--text-muted:#9c9490;--border:#3a3536;--border-strong:#514a4c;--primary:#b5474b;--primary-hover:#c65a5d;--primary-active:#98363a;--on-primary:#fff;--accent:#f07a63;--accent-hover:#fa8c75;--on-accent:#1a1414;--secondary:#72b6de;--secondary-hover:#86c4e8;--on-secondary:#101517;--card:#1d1a1b;--input:#221f20;--input-border:#433d3e;--link:#72b6de;--link-hover:#93cbea;--selected:#1d3543;--selected-border:#72b6de;--shadow:#00000059;--success:#6fc18f;--success-bg:#193527;--on-success:#101a14;--error:#e4695e;--error-bg:#3a2320;--warning:#e0ac5c}html,body,#root{min-height:100%;margin:0}html{background:var(--bg);scrollbar-width:none;-ms-overflow-style:none}html::-webkit-scrollbar{width:0;height:0;display:none}body::-webkit-scrollbar{width:0;height:0;display:none}body{background:var(--bg);min-width:320px;color:var(--text);-webkit-font-smoothing:antialiased;font-family:Noto Sans KR,Noto Sans JP,system-ui,sans-serif}#root{min-height:100dvh}*,:before,:after{box-sizing:border-box}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:default}a{color:var(--link);text-decoration:none}a:hover{color:var(--link-hover)}:focus-visible{outline:3px solid var(--secondary);outline-offset:2px}@keyframes pop{0%{transform:scale(.94)}60%{transform:scale(1.03)}to{transform:scale(1)}}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-7px)}40%{transform:translate(6px)}60%{transform:translate(-4px)}80%{transform:translate(3px)}}@keyframes rise{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@keyframes fadein{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.app-shell{background:var(--bg);min-height:100dvh;display:flex;position:relative}.app-sidebar{width:var(--sidebar-width);flex:0 0 var(--sidebar-width);height:100dvh;padding:var(--space-5) var(--space-4);gap:var(--space-5);background:var(--surface);border-right:1px solid var(--border);flex-direction:column;display:flex;position:sticky;top:0}.app-sidebar__brand,.app-sidebar__nav-item,.app-sidebar__profile{align-items:center;display:flex}.app-sidebar__brand{gap:var(--space-3);padding:0 var(--space-2)}.app-sidebar__logo{object-fit:contain;width:38px;height:38px;display:block}.app-sidebar__title{letter-spacing:-.01em;font-size:17px;font-weight:700}.app-sidebar__nav,.app-sidebar__footer,.app-sidebar__profile-copy{flex-direction:column;display:flex}.app-sidebar__nav{gap:var(--space-1)}.app-sidebar__nav-item{gap:var(--space-3);min-height:46px;padding:0 var(--space-3);color:var(--text-2);text-align:left;border-radius:var(--radius-md);transition:background var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard);background:0 0;border:none;font-size:15px;font-weight:500}.app-sidebar__nav-icon{color:var(--text-muted);display:grid}.app-sidebar__nav-item:hover{background:var(--surface-hover);color:var(--text)}.app-sidebar__nav-item[aria-current=page]{color:var(--text);background:var(--surface-2);font-weight:700}.app-sidebar__nav-item[aria-current=page] .app-sidebar__nav-icon{color:var(--primary)}.app-sidebar__footer{gap:var(--space-3);margin-top:auto}.app-main{flex-direction:column;flex:1;min-width:0;display:flex}.mobile-profile-button{top:calc(var(--space-4) + env(safe-area-inset-top));right:var(--space-4);z-index:30;width:34px;height:34px;color:var(--text-2);background:var(--surface-2);border:1px solid var(--border);border-radius:50%;place-items:center;padding:0;font-size:14px;font-weight:700;display:grid;position:fixed;overflow:hidden}.mobile-profile-button img{object-fit:cover;width:100%;height:100%}.page{width:100%;min-height:100dvh;padding:var(--space-5) var(--space-4) calc(var(--mobile-nav-height) + var(--space-5) + env(safe-area-inset-bottom))}.page--wide{max-width:1000px;margin:0 auto}.page--large{max-width:960px;margin:0 auto}.page--medium{max-width:900px;margin:0 auto}.page--narrow{max-width:760px;margin:0 auto}.mobile-nav{z-index:20;min-height:var(--mobile-nav-height);padding:var(--space-2) var(--space-2) calc(var(--space-2) + env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--border);justify-content:space-around;align-items:flex-end;display:flex;position:fixed;bottom:0;left:0;right:0}.sidebar-stage-card{padding:var(--space-3);background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-lg)}.sidebar-stage-card__eyebrow,.sidebar-stage-card__complete{color:var(--text-muted);font-size:12px}.sidebar-stage-card__eyebrow{letter-spacing:.04em}.sidebar-stage-card__level{margin-top:var(--space-1);font-size:20px;font-weight:700}.sidebar-stage-card__line,.sidebar-stage-card__count{color:var(--text-2)}.sidebar-stage-card__line{margin-top:var(--space-2);font-size:13px}.sidebar-stage-card__track{height:6px;margin-top:var(--space-3);background:var(--border);border-radius:99px;overflow:hidden}.sidebar-stage-card__progress{background:var(--primary);border-radius:inherit;height:100%;transition:width var(--duration-fast) var(--ease-standard)}.sidebar-stage-card__count{margin-top:var(--space-2);font-size:12px}.sidebar-stage-card__complete{margin-top:var(--space-1)}.app-sidebar__profile{gap:var(--space-3);padding:var(--space-2);color:var(--text);text-align:left;border-radius:var(--radius-md);transition:background var(--duration-fast) var(--ease-standard);background:0 0;border:none}.app-sidebar__profile:hover{background:var(--surface-hover)}.app-sidebar__avatar{object-fit:cover;border:1px solid var(--border);border-radius:50%;flex:0 0 34px;width:34px;height:34px;display:block}.app-sidebar__avatar--fallback{color:var(--text-2);background:var(--surface-2);place-items:center;font-size:14px;font-weight:700;display:grid}.app-sidebar__profile-name{font-size:14px;font-weight:500}.app-sidebar__profile-label{color:var(--text-muted);font-size:12px}.mobile-nav__item{min-height:58px;padding:var(--space-1);justify-content:center;align-items:center;gap:var(--space-1);color:var(--text-muted);border-radius:var(--radius-md);transition:color var(--duration-fast) var(--ease-standard), background var(--duration-fast) var(--ease-standard);background:0 0;border:none;flex-direction:column;flex:1;display:flex}.mobile-nav__item:hover{color:var(--text);background:var(--surface-hover)}.mobile-nav__item[aria-current=page]{color:var(--primary)}.mobile-nav__label{font-size:11px;font-weight:500}.mobile-nav__label--active{font-weight:700}.primary-button{transition:transform .12s,box-shadow .12s}.surface-button{transition:background .14s}.quiz-option{transition:background .14s,border-color .14s,transform .14s}.primary-button{background:var(--primary);color:var(--on-primary);box-shadow:0 3px 0 var(--primary-active);border:0;border-radius:16px}.primary-button:hover{background:var(--primary-hover)}.primary-button:active{box-shadow:0 0 0 var(--primary-active);transform:translateY(3px)}.surface-button{border:1px solid var(--border-strong);background:var(--surface);color:var(--text);border-radius:16px}.surface-button:hover{background:var(--surface-hover)}.surface-button:active,.quiz-option:active{transform:translateY(2px)}.quiz-option:hover{border-color:var(--border-strong)}.quiz-feedback{margin-top:26px;animation:.18s rise;position:sticky;bottom:0}.modal-overlay{z-index:50;background:#17151673;place-items:center;padding:20px;animation:.14s fadein;display:grid;position:fixed;inset:0}.modal-dialog{background:var(--surface);border:1px solid var(--border);width:100%;max-width:420px;box-shadow:0 12px 40px var(--shadow);border-radius:20px;flex-direction:column;gap:10px;padding:26px 24px 20px;animation:.18s rise;display:flex}.auto-fit-grid{gap:12px;display:grid}.auto-fit-grid--metrics{grid-template-columns:repeat(auto-fit,minmax(110px,1fr))}.auto-fit-grid--tiles{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}.auto-fit-grid--sets{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}.auto-fit-grid--words{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}.controls-row{flex-wrap:wrap;gap:12px;display:flex}.controls-row>*{flex:180px}@media (width>=901px){.page{padding-bottom:var(--space-6)}.mobile-nav,.mobile-profile-button{display:none}}@media (width<=900px){.app-sidebar{display:none}}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}