@font-face{font-family:Roboto;font-style:normal;font-display:swap;font-weight:500;src:url(/assets/roboto-latin-500-normal-7RbcRiD8.woff2)format("woff2"),url(/assets/roboto-latin-500-normal-DQZyH_nt.woff)format("woff")}:root{color:#151515;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;background:#fff;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html,body,#root{width:100%;height:100%;margin:0}.mobile-carousel{overscroll-behavior:contain;scrollbar-width:none;-webkit-user-select:none;user-select:none;width:100%;min-width:0;max-width:100%;display:block;position:relative;overflow:auto}.mobile-carousel::-webkit-scrollbar{display:none}.mobile-carousel{touch-action:pan-y;overflow:auto hidden}.mobile-carousel[data-dragging=true]{cursor:none}.mobile-carousel-content{width:max-content;min-width:100%;transform:translateX(var(--mobile-carousel-overdrag));will-change:transform;display:flex}.mobile-carousel-scrollbar{z-index:4;opacity:0;pointer-events:none;transition:opacity .15s;position:absolute;inset:0}.mobile-carousel-scrollbar[data-visible=true]{opacity:1}.mobile-carousel-scrollbar-thumb{background:#00000059;border-radius:999px;height:3px;position:absolute;bottom:4px;right:4px}body{min-width:320px;overflow:hidden}button,input,textarea{font:inherit}button{cursor:pointer}.phone-stage{place-items:center;width:100%;height:100%;padding:24px;display:grid;position:relative}.device-menu-bar{z-index:100;border-radius:12px;padding:3px;position:absolute;top:18px;right:18px}.device-picker-trigger{color:#151515;background:0 0;border:0;border-radius:9px;align-items:center;gap:10px;height:34px;padding:0 10px 0 12px;font:600 14px/1 ui-sans-serif,system-ui,sans-serif;display:flex}.device-picker-trigger:hover,.device-picker-trigger[data-state=open]{background:#0000000e}.device-picker-trigger:focus-visible{outline-offset:2px;outline:2px solid #000000b8}.device-picker-menu{z-index:200;min-width:168px;transform-origin:var(--radix-dropdown-menu-content-transform-origin);background:#fffffffa;border-radius:12px;padding:3px;animation:.12s ease-out device-menu-in;box-shadow:0 0 1px #0000000f,0 0 0 1px #00000014,0 4px 4px #0000000d}.device-picker-item{color:#181818;-webkit-user-select:none;user-select:none;border-radius:8px;outline:none;justify-content:space-between;align-items:center;height:34px;padding:0 9px 0 10px;font:500 14px/1 ui-sans-serif,system-ui,sans-serif;display:flex}.device-picker-item[data-highlighted]{background:#f0f0f0}.device-picker-item[data-state=checked]{font-weight:600}.device-picker-check{color:#181818;place-items:center;display:grid}@keyframes device-menu-in{0%{opacity:0;transform:scale(.98)translateY(-2px)}to{opacity:1;transform:scale(1)translateY(0)}}.phone-scale-box{position:relative}.phone-device{transform-origin:0 0;-webkit-user-select:none;user-select:none;position:absolute;top:0;left:0}.phone-bezel{object-fit:contain;z-index:2;-webkit-user-drag:none;pointer-events:none;width:100%;height:100%;display:block;position:absolute;inset:0}.device-screen{cursor:none;z-index:1;-webkit-user-select:none;user-select:none;background:#fff;border-radius:42px;position:absolute;overflow:hidden;box-shadow:inset 0 0 0 1px #00000014}.device-camera{z-index:75;pointer-events:none;background:#050505;border-radius:50%;display:block;position:absolute;box-shadow:inset 0 0 0 1px #ffffff14}.device-screen,.device-screen *{cursor:none!important}.device-screen img,.keyboard-asset{-webkit-user-drag:none;-webkit-user-select:none;user-select:none}.device-screen input,.device-screen textarea,.device-screen select,.device-screen option,.device-screen [contenteditable=true]{-webkit-user-select:auto;user-select:auto}.device-screen:active,.device-screen:active *,.device-screen input,.device-screen textarea,.device-screen button,.device-screen a,.device-screen [role=button]{cursor:none!important}.device-screen[data-cursor-debug=true],.device-screen[data-cursor-debug=true] *{cursor:default!important}.device-screen :focus,.device-screen :focus-visible{box-shadow:none!important;outline:0!important}.flow-stack,.flow-scenes,.flow-screen,.mobile-app-viewport{position:absolute;inset:0}.mobile-app-viewport[data-platform=android][data-keyboard-visible=false]{bottom:var(--device-safe-area-bottom,48px)}.flow-stack{--flow-header-height:0px;--flow-header-content-height:0px;--flow-header-safe-area:0px;--flow-footer-height:0px;--keyboard-height:0px;touch-action:pan-y;background:0 0;overflow:hidden}.flow-fixed-header{z-index:12;height:var(--flow-header-height);padding-top:var(--flow-header-safe-area);box-sizing:border-box;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border-bottom:0;position:absolute;top:0;left:0;right:0}.flow-fixed-footer{z-index:12;right:0;bottom:var(--keyboard-height);height:var(--flow-footer-height);background:0 0;transition:bottom .26s cubic-bezier(.2,.8,.2,1);position:absolute;left:0}.flow-scenes{top:var(--flow-header-height);bottom:0;overflow:hidden}.flow-screen{will-change:transform;background:0 0;overflow:hidden}.mobile-page{--mobile-safe-area-height:var(--device-safe-area-bottom,34px);--keyboard-height:0px;position:absolute;inset:0}.mobile-page[data-keyboard-visible=true],.mobile-app-viewport[data-platform=android] .mobile-page{--mobile-safe-area-height:0px}.mobile-scroll{top:0;right:0;bottom:var(--keyboard-height);-webkit-overflow-scrolling:touch;overscroll-behavior:contain;scrollbar-width:none;touch-action:none;-webkit-user-select:none;user-select:none;transition:bottom .26s cubic-bezier(.2,.8,.2,1);position:absolute;left:0;overflow:hidden auto}.mobile-scroll::-webkit-scrollbar{display:none}.mobile-scroll[data-dragging=true]{cursor:none}.mobile-cursor{z-index:80;opacity:0;pointer-events:none;will-change:transform;background:radial-gradient(circle at 50% 44%,#ffffffb3 0 34%,#ffffff8a 58%,#eeeeee7a 100%);border:.5px solid #0000001f;border-radius:999px;width:48px;height:48px;transition:opacity 90ms,background 80ms,box-shadow 80ms;position:absolute;top:0;left:0;box-shadow:inset 0 1px 2px #fff9,inset 0 -5px 10px #0000000d,inset 0 0 0 1px #00000006}.mobile-cursor:before{content:"";pointer-events:none;background:linear-gradient(#ffffff61,#fff0);border-radius:999px;width:32px;height:17px;position:absolute;top:3px;left:50%;transform:translate(-50%)}.mobile-cursor:after{border-radius:inherit;content:"";pointer-events:none;position:absolute;inset:0;box-shadow:inset 1px 0 3px #ffffff47,inset -1px 0 3px #00000005}.mobile-cursor-hotspot{pointer-events:none;background:#ffffffd1;border:1px solid #007afff2;border-radius:999px;width:9px;height:9px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 1px #ffffffbf,0 0 0 3px #007aff29}.mobile-cursor-hotspot:before,.mobile-cursor-hotspot:after{content:"";background:#007afff2;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.mobile-cursor-hotspot:before{width:17px;height:1px}.mobile-cursor-hotspot:after{width:1px;height:17px}.mobile-cursor[data-visible=true]{opacity:1}.mobile-cursor[data-active=true]{background:radial-gradient(circle at 50% 55%,#e8e8e894 0 30%,#f8f8f880 62%,#ffffffad 100%);box-shadow:inset 0 3px 7px #00000014,inset 0 -4px 8px #ffffff57,inset 0 0 0 1px #00000008}.mobile-cursor[data-active=true]:before{background:linear-gradient(#0000000e,#0000)}.mobile-cursor[data-active=true]:after{box-shadow:inset 0 5px 9px #0000000b,inset 0 -3px 7px #ffffff47}.mobile-scroll-content{will-change:transform;grid-template-columns:minmax(0,1fr);gap:0;min-width:0;padding:0;display:grid}.app-screen{background:#fff}.mobile-scrollbar{z-index:9;top:4px;right:5px;bottom:calc(var(--mobile-safe-area-height) + var(--keyboard-height) + 4px);opacity:0;pointer-events:none;width:4px;transition:bottom .26s cubic-bezier(.2,.8,.2,1),opacity .18s;position:absolute}.mobile-page[data-keyboard-dragging=true] .mobile-scroll,.mobile-page[data-keyboard-dragging=true] .mobile-scrollbar,.flow-stack[data-keyboard-dragging=true] .flow-fixed-footer{transition:none}.mobile-scrollbar[data-visible=true]{opacity:1}.mobile-scrollbar-thumb{background:#00000047;border-radius:999px;width:4px;min-height:36px;transition:background .12s;box-shadow:0 0 0 1px #ffffff2e}.status-bar{z-index:72;color:#050505;pointer-events:none;background:0 0;grid-template-columns:1fr auto;align-items:center;height:54px;padding:10px 34px 0 36px;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Helvetica Neue,Arial,sans-serif;display:grid;position:absolute;top:0;left:0;right:0}.device-screen[data-device=pixel-10] .status-bar{align-items:start;height:auto;padding:32px 32px 0;font-family:Roboto,Arial,sans-serif}.status-time{text-align:center;letter-spacing:0;justify-self:start;min-width:58px;font-size:15px;font-weight:600;line-height:1}.status-indicators{justify-self:end;align-items:center;display:flex}.status-indicator-svg{display:block}.status-indicator-svg[data-platform=ios]{width:79px;height:13px}.status-indicator-svg[data-platform=android]{width:50px;height:14px}.device-screen[data-device=pixel-10] .status-time{font-weight:500;transform:translateY(2px)}.home-indicator-svg{z-index:70;width:100%;height:var(--device-safe-area-bottom,34px);pointer-events:none;display:block;position:absolute;bottom:0;left:0;right:0}.android-navigation-bar{z-index:70;width:428px;height:var(--device-safe-area-bottom,48px);pointer-events:none;-webkit-user-drag:none;display:block;position:absolute;bottom:-1px;left:-1px}h1,h2,p{margin:0}h1{letter-spacing:0;font-size:26px;line-height:1.08}h2{font-size:15px}p{color:#555;font-size:14px;line-height:1.45}.field-label{color:#555;font-size:13px;font-weight:800}.mobile-field{gap:8px;display:grid}.mobile-field input{color:#151515;background:#fff;border:1px solid #0000001a;border-radius:8px;outline:0;width:100%;min-height:44px;padding:0 12px}.mobile-field input:focus{box-shadow:none;border-color:#00000029}.device-screen .mobile-field input:focus,.device-screen .mobile-field input:focus-visible{border-color:#0000001f;box-shadow:none!important;outline:0!important}.sheet-overlay{z-index:20;background:#00000057;position:absolute;inset:0}.bottom-sheet{z-index:21;touch-action:none;background:#fff;border-radius:22px 22px 0 0;flex-direction:column;min-height:260px;display:flex;position:absolute;left:0;right:0;overflow:hidden;box-shadow:0 -16px 48px #0003}.sheet-handle-zone{touch-action:none;place-items:center;height:30px;display:grid}.sheet-handle{background:#c9c9c4;border-radius:999px;width:42px;height:5px}.sheet-header{gap:4px;padding:0 18px 14px;display:grid}.sheet-title{margin:0;font-size:18px;font-weight:900}.sheet-description{color:#737373;margin:0;font-size:13px;line-height:1.35}.sheet-content{padding:0 18px 24px;overflow:auto}.keyboard-dock{z-index:30;height:339px;box-shadow:none;pointer-events:none;will-change:transform;background:#d8d9de;border-radius:32px 32px 0 0;padding:0;position:absolute;bottom:-1px;left:0;right:0;overflow:hidden}.keyboard-dock[data-platform=android]{background:#f3f2f6;border-radius:0;box-shadow:0 -1px 2px #00000014}.keyboard-dock[data-visible=true]{pointer-events:auto}.keyboard-asset{z-index:1;border-radius:inherit;object-fit:cover;object-position:center bottom;-webkit-user-drag:none;pointer-events:none;width:100%;height:100%;display:block;position:relative}.keyboard-dock[data-platform=android] .keyboard-asset{object-fit:fill;border-radius:0}.study-app,.study-sheet{--bg:#f7f7f4;--card:#fff;--ink:#1d2330;--sub:#5b6372;--line:#e8e9ec;--main:#f0661a;--main-ink:#b34507;--main-soft:#fff0e5;--up:#13795b;--down:#c23a2b;--shadow:0 1px 3px #14182114}.study-app{background:var(--bg);color:var(--ink);font-family:Noto Sans JP,Hiragino Sans,sans-serif;position:absolute;inset:0}.study-num{font-feature-settings:"tnum";font-family:"M PLUS Rounded 1c",Hiragino Maru Gothic ProN,Hiragino Sans,sans-serif}.study-app button:focus-visible{outline:3px solid var(--main);outline-offset:2px;border-radius:12px}.study-banner,.study-error{color:var(--down);margin:0;font-size:13px;line-height:1.4}.study-banner{z-index:5;position:absolute;top:8px;left:12px;right:12px}.study-header,.study-home-top{background:var(--bg);flex-wrap:wrap;place-content:center space-between;align-items:center;gap:8px;height:100%;padding:8px 16px;display:flex}.kid-open{text-align:left;width:100%;min-height:44px}.study-header{align-content:center;gap:2px;display:grid}.study-header h1,.study-sec-h h2,.study-card h2,.study-list h2{margin:0;font-family:"M PLUS Rounded 1c",Hiragino Maru Gothic ProN,Hiragino Sans,sans-serif;font-size:16px;font-weight:700;line-height:1.2}.study-header h1{font-size:20px}.study-header-row,.study-card-head,.study-inline-actions,.study-choice-row,.study-sec-h{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.study-child-button,.study-text-button,.study-chip,.study-unit,.study-progress-row,.study-inline-actions button,.study-list button,.study-file,.study-primary,.study-confirm button,.study-link,.study-kid,.study-kid-add{color:inherit;font:inherit;background:0 0;border:0}.study-child-button,.study-kid{min-height:40px;color:var(--sub);border-radius:999px;align-items:center;gap:8px;padding:6px 12px 6px 6px;font-size:14px;font-weight:700;display:inline-flex}.study-child-button small,.study-kid small{font-size:12px;font-weight:500}.study-kid[aria-pressed=true],.study-child-button{color:var(--ink);box-shadow:var(--shadow);background:#fff}.study-kid-today{color:var(--main-ink);background:#fff;border-radius:999px;flex:none;padding:1px 6px;font-size:10px;font-weight:700;line-height:1.4}.study-kid-today.is-done{background:var(--main);color:#fff}.study-kids{background:#ecedef;border-radius:999px;align-items:center;gap:4px;min-width:0;padding:4px;display:flex;overflow-x:auto}.study-av,.study-child-dot{color:#fff;border-radius:50%;flex:none;place-items:center;width:28px;height:28px;font-family:"M PLUS Rounded 1c",Hiragino Maru Gothic ProN,sans-serif;font-size:13px;font-weight:700;display:grid}.study-kid-add{width:36px;height:36px;color:var(--main-ink);border-radius:50%;place-items:center;display:grid}.study-date,.study-rec-meta{color:var(--sub);text-align:right;font-size:13px;line-height:1.35}.study-text-button,.study-link{color:var(--main-ink);font-size:13px;font-weight:700}.study-tabs{border-top:1px solid var(--line);background:#fff;grid-template-columns:repeat(5,1fr);height:100%;padding:8px 4px 6px;display:grid}.study-tabs button{color:var(--sub);background:0 0;border:0;flex-direction:column;justify-content:center;align-items:center;gap:4px;font-size:11px;font-weight:500;display:flex}.study-tabs button.is-selected{color:var(--main-ink);font-weight:700}.study-scroll{background:var(--bg)}.study-page{padding:8px 16px calc(var(--flow-footer-height) + var(--mobile-safe-area-height) + 24px);gap:12px;display:grid}.study-home{gap:0;padding-top:4px}.study-card,.study-confirm,.study-empty{background:var(--card);box-shadow:var(--shadow);border-radius:20px;gap:8px;padding:14px 16px;display:grid}.study-empty{color:var(--sub);font-size:14px}.study-hero{background:var(--main);color:#fff;border-radius:24px;padding:20px 20px 16px;position:relative;overflow:hidden}.study-hero:after{content:"";background:#ffffff14;border-radius:50%;width:180px;height:180px;position:absolute;top:-48px;right:-48px}.study-hero-row,.study-week{z-index:1;position:relative}.study-hero-row{justify-content:space-between;align-items:center;gap:12px;display:flex}.study-streak-label{letter-spacing:.04em;opacity:.92;font-size:13px;font-weight:700}.study-streak{align-items:flex-end;gap:4px;margin-top:2px;display:flex}.study-streak .study-num{font-size:64px;font-weight:800;line-height:1}.study-streak-unit{padding-bottom:8px;font-family:"M PLUS Rounded 1c",Hiragino Maru Gothic ProN,sans-serif;font-size:18px;font-weight:700}.study-cheer{opacity:.95;margin:4px 0 0;font-size:13px}.study-today-missing{gap:6px;margin-top:8px;display:grid}.study-today-missing p{margin:0;font-size:13px}.study-hero-btn,.study-gap-link{width:fit-content;color:var(--main-ink);font:inherit;background:#fff;border:0;border-radius:999px;padding:8px 12px;font-size:13px;font-weight:700}.study-gap-link{color:#fff;background:#ffffff2e;margin-top:8px}.study-ring{flex:none;width:112px;height:112px;position:relative}.study-ring svg{width:100%;height:100%;transform:rotate(-90deg)}.study-ring-text{text-align:center;place-content:center;line-height:1.1;display:grid;position:absolute;inset:0}.study-ring-text b{font-size:26px;font-weight:800}.study-ring-text span{font-size:11px}.study-week{background:#ffffff24;border-radius:16px;grid-template-columns:repeat(7,1fr);gap:4px;margin-top:16px;padding:10px 8px;display:grid}.study-day{flex-direction:column;align-items:center;gap:6px;font-size:11px;font-weight:700;display:flex}.study-dot{border:2px dashed #fff9;border-radius:50%;place-items:center;width:28px;height:28px;display:grid}.study-dot.is-done{color:var(--main);background:#fff;border:0}.study-dot.is-today{background:#fff3;border:2px solid #fff}.study-sec{margin-top:20px}.study-sec-h{margin-bottom:8px;padding:0 4px}.study-grades{grid-template-columns:1fr 1fr;gap:8px;display:grid}.study-grade{border-radius:16px;flex-direction:column;gap:4px;padding:12px 12px 10px;display:flex}.study-grade-top{justify-content:space-between;align-items:center;display:flex}.study-grade-name,.study-tag{font-size:13px;font-weight:700}.study-delta{background:#fff;border-radius:999px;align-items:center;padding:2px 8px;font-size:12px;font-weight:700;display:inline-flex}.study-delta.is-up{color:var(--up)}.study-delta.is-down{color:var(--down)}.study-delta.is-flat{color:var(--sub)}.study-grade-val{font-size:28px;font-weight:800;line-height:1.1}.study-grade-val small{margin-left:1px;font-size:14px;font-weight:700}.study-bar{background:#ffffffe6;border-radius:99px;height:6px;overflow:hidden}.study-bar i{border-radius:99px;height:100%;display:block}.study-tone-jp{color:#c8505a;background:#fbecec}.study-tone-ma{color:#2f6fb5;background:#eaf1fa}.study-tone-sc{color:#2e8565;background:#e7f4ee}.study-tone-so{color:#9a6a17;background:#f7f0e1}.study-tone-en{color:#7a5ab0;background:#f1ecf8}.study-tone-ot{background:var(--main-soft);color:var(--main-ink)}.study-tone-jp .study-bar i{background:#c8505a}.study-tone-ma .study-bar i{background:#2f6fb5}.study-tone-sc .study-bar i{background:#2e8565}.study-tone-so .study-bar i{background:#9a6a17}.study-tone-en .study-bar i{background:#7a5ab0}.study-tone-ot .study-bar i{background:var(--main)}.study-tag{border-radius:999px;flex:none;padding:2px 8px;font-size:11px}.study-todo{gap:0;padding:4px 0}.study-todo-item{border:0;border-top:1px solid var(--line);width:100%;color:inherit;text-align:left;background:0 0;align-items:center;gap:12px;padding:12px 16px;display:flex}.study-todo-item:first-child{border-top:0}.study-chk{color:#0000;border:2px solid #c9ccd2;border-radius:50%;flex:none;place-items:center;width:28px;height:28px;display:grid}.study-todo-body{flex:1;min-width:0}.study-todo-title,.study-rec-title{font-size:15px;font-weight:700;line-height:1.35;display:block}.study-todo-meta,.study-todo-basis{color:var(--sub);margin-top:2px;font-size:12px;display:block}.study-todo-basis{font-size:11px}.study-quick{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.study-quick-btn{box-shadow:var(--shadow);color:var(--ink);background:#fff;border:0;border-radius:16px;flex-direction:column;align-items:center;gap:8px;padding:14px 8px 12px;font-size:13px;font-weight:700;display:flex}.study-quick-ic{background:var(--main-soft);width:44px;height:44px;color:var(--main-ink);border-radius:14px;place-items:center;display:grid}.study-quick-btn.is-primary{background:var(--ink);color:#fff}.study-quick-btn.is-primary .study-quick-ic{color:#fff;background:#ffffff1f}.study-rec{align-items:center;gap:12px;padding:12px 16px 12px 12px;display:flex}.study-play{background:var(--main);color:#fff;border:0;border-radius:50%;flex:none;place-items:center;width:48px;height:48px;display:grid}.study-rec-body{flex:1;min-width:0}.study-wave{align-items:center;gap:2px;height:24px;margin-top:6px;display:flex}.study-wave i{background:#d5d8dd;border-radius:2px;width:3px}.study-wave i.is-on{background:var(--main)}.study-rec-meta .study-num{color:var(--ink);font-size:14px;font-weight:700}.study-primary,.study-confirm button,.study-list button,.study-inline-actions button,.study-file{background:#ecedef;border-radius:12px;min-height:40px;padding:8px 12px;font-weight:700}.study-primary{background:var(--main);color:#fff}.study-primary:disabled{opacity:.45}.study-chip{min-height:36px;color:var(--sub);background:#ecedef;border-radius:999px;padding:6px 10px;font-size:13px;font-weight:700}.study-chip.is-selected{background:var(--main);color:#fff}.study-unit-groups,.study-progress{gap:8px;display:grid}.study-unit-term{color:var(--sub);margin:8px 0 0;font-size:12px;font-weight:700}.study-unit-grid{flex-wrap:wrap;gap:8px;display:flex}.study-unit{min-height:36px;color:var(--ink);box-shadow:var(--shadow);background:#fff;border-radius:999px;padding:6px 10px;font-size:13px;font-weight:700}.study-unit.is-selected{background:var(--main);color:#fff}.study-progress-row{width:100%;min-height:48px;box-shadow:var(--shadow);color:var(--ink);text-align:left;background:#fff;border-radius:20px;justify-content:space-between;align-items:center;gap:8px;padding:10px 14px;font-weight:700;display:flex}.study-progress-row small{color:var(--sub);background:#ecedef;border-radius:999px;flex:none;padding:4px 8px;font-size:12px}.study-progress-row[data-status=doing] small{background:var(--main-soft);color:var(--main-ink)}.study-progress-row[data-status=done] small{color:var(--up);background:#e7f4ee}.study-progress-row[data-status=weak] small{color:var(--down);background:#fbecec}.study-field{gap:6px;display:grid}.study-label{color:var(--sub);font-size:12px;font-weight:700}.study-field input,.study-field textarea,.study-page input,.study-page textarea{border:1px solid var(--line);width:100%;min-height:44px;color:var(--ink);font:inherit;background:#fff;border-radius:12px;padding:10px 12px}.study-field textarea,.study-page textarea{resize:vertical;min-height:88px}.study-list{gap:10px;margin:0;padding:0;list-style:none;display:grid}.study-note,.study-chart-summary,.study-page>p{color:var(--sub);font-size:13px;line-height:1.5}.study-chart-wrap{background:var(--card);box-shadow:var(--shadow);border-radius:20px;padding:8px}.study-chart{width:100%;height:auto}.study-chart-grid{stroke:#1d23301f}.study-chart-axis{fill:var(--sub);font-size:11px}.study-chart-line{stroke:var(--main);stroke-width:2px}.study-chart-point{cursor:pointer}.study-chart-point circle{fill:var(--ink);stroke:#fff;stroke-width:2px}.study-carousel{width:100%}.study-recording{background:var(--main-soft);color:var(--main-ink);border-radius:16px;gap:8px;padding:12px;display:grid}.study-file input{margin-top:6px;display:block}.study-sheet{gap:12px;display:grid}.study-sheet .study-list button{align-items:center;gap:8px;display:inline-flex}.study-toast{z-index:20;background:var(--ink);color:#fff;box-shadow:var(--shadow);border-radius:20px;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;animation:.2s ease-out study-toast-in;display:flex;position:absolute;bottom:88px;left:16px;right:16px}.study-toast p{margin:0;font-size:14px;font-weight:700}.study-toast button{color:#fff;font:inherit;background:0 0;border:0;font-weight:700}@keyframes study-toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:reduce){.study-app *{transition:none!important;animation:none!important}}:is(html:has([data-native-app=true]) .phone-bezel,html:has([data-native-app=true]) .device-menu-bar,html:has([data-native-app=true]) .status-bar,html:has([data-native-app=true]) .home-indicator-svg,html:has([data-native-app=true]) .android-navigation-bar,html:has([data-native-app=true]) .keyboard-dock,html:has([data-native-app=true]) .device-camera,html:has([data-native-app=true]) .mobile-cursor){display:none!important}html:has([data-native-app=true]){height:100dvh}html:has([data-native-app=true]) body{height:100dvh}html:has([data-native-app=true]) #root{height:100dvh}html:has([data-native-app=true]) .phone-stage{height:100dvh;padding:0;display:block}:is(html:has([data-native-app=true]) .phone-scale-box,html:has([data-native-app=true]) .phone-device,html:has([data-native-app=true]) .device-screen,html:has([data-native-app=true]) .mobile-app-viewport){border-radius:0!important;width:100%!important;height:100dvh!important;position:relative!important;top:0!important;left:0!important;transform:none!important}:is(html:has([data-native-app=true]) .flow-stack,html:has([data-native-app=true]) .kid-app){--flow-header-safe-area:env(safe-area-inset-top,0px)!important;--flow-header-height:calc(var(--flow-header-content-height) + env(safe-area-inset-top,0px))!important;--keyboard-height:0px!important}html:has([data-native-app=true]) .study-page{padding-bottom:calc(var(--flow-footer-height) + env(safe-area-inset-bottom,0px) + 24px)}.study-kid{white-space:nowrap;flex:none}.study-kids{scrollbar-width:none;flex:1}.study-kids::-webkit-scrollbar{display:none}.study-home-top{flex-direction:column;place-content:flex-start;align-items:stretch;gap:4px;height:auto;padding-bottom:0}.kid-open{width:auto;min-height:0;color:var(--main-ink);align-self:flex-start;padding:0;font-weight:700;line-height:1.4}.device-screen{overflow:clip}.study-tabs{position:relative}.study-tabs:after{content:"";height:var(--mobile-safe-area-height,34px);background:#fff;position:absolute;top:100%;left:0;right:0}.kid-app{z-index:3;background:var(--bg);color:var(--ink);position:absolute;inset:0}.kid-scenes{top:var(--flow-header-height);position:absolute;bottom:0;left:0;right:0}.kid-app .flow-fixed-header{background:var(--bg)}.kid-page{padding:8px 16px calc(var(--mobile-safe-area-height) + 28px);gap:8px;display:grid}.kid-top{background:var(--bg);height:100%;padding:0 16px}.kid-hello{flex:1;min-width:0}.kid-top,.kid-q-head,.kid-sec,.kid-tile,.kid-voice,.kid-live{justify-content:space-between;align-items:center;gap:12px;display:flex}.kid-voice-main{flex:1;min-width:0}.kid-read-carousel .study-chip{white-space:nowrap;flex:none}.kid-hello{margin:0;font-family:"M PLUS Rounded 1c",Hiragino Maru Gothic ProN,sans-serif;font-size:22px;font-weight:800;line-height:1.3}.kid-hello small,.kid-sec span,.kid-read-status,.kid-quest p{color:var(--sub);font-family:Noto Sans JP,Hiragino Sans,sans-serif;font-size:14px;font-weight:700;display:block}.kid-lock{color:#8a919c;background:0 0;border:0;border-radius:12px;flex:none;place-items:center;width:44px;height:44px;display:grid}.kid-quest{background:var(--main-soft);border-radius:24px;padding:14px 16px 4px}.kid-streak{color:var(--main-ink);align-items:baseline;gap:6px;font-family:"M PLUS Rounded 1c",Hiragino Maru Gothic ProN,sans-serif;font-weight:800;display:flex}.kid-streak b{font-size:56px;line-height:1}.kid-streak span{font-size:20px}.kid-chip{box-shadow:var(--shadow);color:var(--ink);background:#fff;border-radius:999px;align-items:center;gap:4px;margin:0;padding:6px 12px;font-size:14px;font-weight:700;display:flex}.kid-chip b{color:var(--main-ink);font-size:18px}.kid-road{width:100%;height:auto;display:block}.kid-road text{fill:var(--sub);font-family:"M PLUS Rounded 1c",Hiragino Maru Gothic ProN,sans-serif;font-size:12px;font-weight:700}.kid-road text.is-today{fill:var(--main-ink);font-weight:800}.kid-sec{margin:8px 4px}.kid-sec h2{margin:0;font-family:"M PLUS Rounded 1c",Hiragino Maru Gothic ProN,sans-serif;font-size:18px;font-weight:800}.kid-tiles{gap:8px;display:grid}.kid-tile,.kid-voice{box-shadow:var(--shadow);background:#fff;border-radius:20px;padding:10px 10px 10px 14px}.kid-tile.is-live{border:2px solid var(--main);flex-wrap:wrap}.kid-body{flex:1;min-width:0}.kid-no{width:36px;height:36px;color:var(--sub);border:2px dashed #c9ccd2;border-radius:50%;flex:none;place-items:center;font-weight:800;display:grid}.kid-tile.is-live .kid-no{background:var(--main);color:#fff;border:0}.kid-subj{margin:0;font-size:14px;font-weight:700}.kid-title{margin:0;font-size:18px;font-weight:700;line-height:1.35}.kid-go,.kid-done{color:#fff;border:0;border-radius:16px;flex:none;align-items:center;height:56px;padding:0 18px;font-size:18px;font-weight:800;display:inline-flex}.kid-go{background:#c4470b}.kid-done{background:var(--ink)}.kid-live{background:var(--main-soft);border-radius:14px;width:100%;padding:8px 8px 8px 14px}.kid-live p{color:var(--main-ink);margin:0;font-size:14px;font-weight:700}.kid-clock{font-family:"M PLUS Rounded 1c",Hiragino Maru Gothic ProN,sans-serif;font-size:34px;font-weight:800;line-height:1}.kid-mic{color:#fff;background:#c8505a;border:0;border-radius:50%;flex:none;place-items:center;width:68px;height:68px;display:grid}.kid-mic[aria-pressed=true]{background:var(--ink)}.kid-tone-jp{color:#c8505a}.kid-tone-ma{color:#2f6fb5}.kid-tone-sc{color:#13795b}.kid-tone-so{color:#9a6a17}.kid-tone-en{color:#7a5ab0}.kid-tone-ot{color:var(--sub)}.kid-tier-low .kid-hello,.kid-tier-low .kid-title,.kid-tier-low .kid-go,.kid-tier-low .kid-done{font-size:22px}.kid-tier-high .kid-streak b{font-size:40px}.kid-fixed-fill{height:100%}.kid-app .flow-fixed-footer{background:var(--bg)}.quiz-head{align-items:center;gap:8px;padding:0 12px;display:flex}.quiz-head-copy{flex:1;min-width:0}.quiz-head-copy p,.quiz-back{margin:0;font-weight:800}.quiz-back{color:var(--main);background:0 0;border:0;font-size:16px}.quiz-prompt,.quiz-score{white-space:pre-wrap;margin:8px 0;font-family:"M PLUS Rounded 1c",Hiragino Maru Gothic ProN,sans-serif;font-size:28px;font-weight:800;line-height:1.4}.quiz-page{padding-bottom:calc(var(--flow-footer-height) + 24px)}.quiz-feedback{background:#fff;border-radius:20px;margin:0;padding:14px 16px;font-size:20px;font-weight:800}.quiz-feedback span{color:var(--sub);margin-top:6px;font-size:16px;display:block}.quiz-feedback[data-correct=true]{color:#13795b}.quiz-feedback[data-correct=false]{color:#c8505a}.quiz-pad{flex-direction:column;gap:8px;height:100%;padding:8px 16px 12px;display:flex}.quiz-readout,.quiz-fields b{background:#fff;border-radius:16px;min-height:44px;margin:0;padding:8px 12px;font-size:28px;font-weight:800;line-height:1.2}.quiz-fields{grid-template-columns:1fr 1fr;gap:8px;display:grid}.quiz-fields button{background:#fff;border:2px solid #0000;border-radius:16px;align-items:center;gap:8px;min-height:52px;padding:6px 8px;font-weight:800;display:flex}.quiz-fields button.is-on{border-color:var(--main)}.quiz-keypad{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;display:grid}.quiz-keypad button,.quiz-choice{min-height:44px;color:var(--ink);background:#fff;border:0;border-radius:14px;font-size:22px;font-weight:800}.quiz-choices{flex:1;gap:8px;display:grid}.quiz-choice[aria-pressed=true]{outline:3px solid var(--main)}.quiz-choice[data-correct=true]{background:#e5f6ee}.quiz-submit{text-align:center;justify-content:center;width:100%}.quiz-score{font-size:34px}.quiz-result-actions{gap:8px;padding:8px 16px 12px;display:grid}.quiz-leave{gap:12px;display:grid}