@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-outline-style:solid}}}@layer theme{:root,:host{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, 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transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.block{display:block}.contents{display:contents}.flex{display:flex}.grow{flex-grow:1}.outline{outline-style:var(--tw-outline-style);outline-width:1px}}:root{--blue:#2459ec;--ink:#17233d;--muted:#748096;--line:#e7ebf3;--bg:#f6f8fc;--radius:22px}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font-family:Arial,Malgun Gothic,Yu Gothic,sans-serif;font-size:16px;line-height:1.6}a{color:inherit;text-decoration:none}button,select,input,textarea{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline-offset:3px;outline:3px solid 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p{color:#8b98ac;margin-top:3px;font-size:11px}footer{text-align:center;color:#a2adbd;margin-top:35px;font-size:11px}.mobile-header,.bottom-nav{display:none}.skip{z-index:100;background:#fff;padding:10px;position:fixed;top:-100px}.skip:focus{top:0}.toast{color:#fff;z-index:50;background:#17233d;border-radius:13px;max-width:90%;padding:13px 20px;font-size:14px;position:fixed;bottom:24px;left:50%;transform:translate(-50%);box-shadow:0 8px 32px #17233d33}.toast button{color:#fff;background:0 0;border:0;margin-left:15px}.error{color:#b34040;font-size:14px}.page-title{margin:14px 0 25px}.page-title p{color:var(--muted);margin-top:7px}.stack{gap:18px;display:grid}.two-col{grid-template-columns:1fr 1fr;gap:22px;display:grid}.form{gap:15px;display:grid}.form label{gap:5px;font-size:14px;font-weight:600;display:grid}input,textarea,select{color:var(--ink);background:#fff;border:1px solid #dbe2ef;border-radius:10px;max-width:100%;padding:11px 13px}textarea{min-height:130px}.tabs{flex-wrap:wrap;gap:8px;margin-bottom:23px;display:flex}.tabs button{border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px 17px;font-size:14px}.tabs button.active{background:var(--blue);color:#fff}.stage-list{gap:12px;display:grid}.stage-row{border:1px solid var(--line);background:#fff;border-radius:17px;align-items:center;gap:18px;padding:18px;display:flex}.stage-row .grow{flex:1}.stage-row.locked{opacity:.65}.stage-row small{color:var(--muted)}.study-card{text-align:center;padding:40px 25px}.study-card h2{overflow-wrap:anywhere;font-size:38px}.study-card .audio-control{justify-content:center}.study-actions{justify-content:space-between;gap:15px;margin-top:24px;display:flex}.choices{gap:12px;margin-top:23px;display:grid}.choice{text-align:left;color:var(--ink);background:#fff;border:1px solid #dbe3f0;border-radius:13px;padding:16px;font-size:17px}.choice:hover{background:#f2f6ff;border-color:#94b1ff}.choice.correct{background:#e6f6ec;border-color:#72bf8b}.choice.wrong{background:#fff0ee;border-color:#e79e95}.tokens{background:#eef3fc;border-radius:13px;flex-wrap:wrap;gap:10px;min-height:64px;margin-top:16px;padding:16px;display:flex}.token{color:var(--ink);background:#fff;border:1px solid #d6e0f3;border-radius:9px;padding:10px 15px}.feedback{background:#eef6ff;border-radius:12px;margin-top:20px;padding:15px}.notice{color:#5472ae;background:#eef3ff;border-radius:13px;margin-bottom:18px;padding:13px 17px;font-size:14px}.record-controls{justify-content:center;gap:10px;margin-top:22px;display:flex}.kana-grid{grid-template-columns:repeat(5,1fr);gap:9px;display:grid}.kana{border:1px solid var(--line);text-align:center;background:#fff;border-radius:12px;padding:12px}.kana strong{font-size:29px;display:block}.kana span{color:var(--muted);font-size:12px;display:block}.content-list{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.content-list .card h3{font-size:27px}.auth-card{max-width:480px;margin:35px auto}.tree-node{border:1px solid var(--line);border-radius:12px;margin-top:13px;padding:16px}.tree-node p{font-size:14px}.tree-node li{margin-top:7px}.history-row{border-bottom:1px solid var(--line);justify-content:space-between;padding:13px 0;font-size:14px;display:flex}.skeleton{text-align:center;color:var(--muted);padding:50px}.empty{text-align:center;padding:35px}.success{text-align:center;padding:45px 20px}.success .emoji{font-size:64px}.success h1{margin:18px 0}.success .button{margin-top:24px}.badge{color:var(--blue);background:#eaf0ff;border-radius:8px;padding:4px 8px;font-size:12px}.admin-table{border-collapse:collapse;width:100%;font-size:14px}.admin-table td,.admin-table th{text-align:left;border-bottom:1px solid var(--line);padding:12px}@media (min-width:1600px){.page{padding-top:38px}.home-grid{grid-template-columns:minmax(0,1fr) 320px}.today-card{padding:35px}}@media (max-width:1150px){.sidebar{width:218px;padding:30px 17px}.brand{font-size:18px}.brand small{font-size:7px}main{margin-left:218px}.page{padding:25px}.home-grid{grid-template-columns:minmax(0,1fr) 250px;gap:20px}.today-card h2{font-size:23px}.expression-card h3{font-size:30px}.stage-preview{grid-template-columns:1fr}.mini-stage{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.mini-stage small{margin:0}.mini-stage .muted{margin-left:auto}}@media (max-width:900px){.home-grid{grid-template-columns:1fr}.right-column{grid-template-columns:1fr 1fr;display:grid}.review-link{grid-column:1/-1}.stage-preview{grid-template-columns:repeat(3,1fr)}.mini-stage{display:block}.mini-stage small{margin:10px 0}.two-col{grid-template-columns:1fr}}@media (max-width:700px){.sidebar{display:none}main{margin:0}.mobile-header{border-bottom:1px solid var(--line);background:#fff;justify-content:space-between;align-items:center;padding:14px 20px;display:flex}.mobile-header .brand{font-size:19px}.brand-icon{border-radius:11px;width:34px;height:34px;font-size:24px}.bottom-nav{height:72px;padding-bottom:env(safe-area-inset-bottom);border-top:1px solid var(--line);z-index:20;background:#fff;justify-content:space-around;display:flex;position:fixed;bottom:0;left:0;right:0}.bottom-nav a{color:#8996ac;flex-direction:column;justify-content:center;align-items:center;gap:4px;width:20%;font-size:11px;display:flex}.bottom-nav a.active{color:var(--blue);font-weight:700}.page{padding:22px 20px 98px}.topline{display:none}.greeting{margin:5px 0 25px}h1{font-size:26px}.greeting .eyebrow{font-size:9px}.greeting p{font-size:13px}.today-card{padding:25px}.today-card h2{font-size:24px}.today-card p{font-size:12px}.expression-card{padding:24px}.expression-card h3{font-size:30px}.right-column{grid-template-columns:1fr}.progress-card{padding:24px}.mission-card{padding:25px}.review-link{padding:15px 0}.stage-preview{grid-template-columns:1fr}.mini-stage{display:flex}.mini-stage h3{flex:1}.stage-row{gap:12px;padding:14px}.stage-row h3{font-size:16px}.stage-row .button{padding:8px 11px;font-size:12px}.stage-row small{font-size:11px}.content-list{grid-template-columns:1fr}.study-card h2{font-size:32px}.toast{bottom:84px}.section-heading h2{font-size:18px}.pill{font-size:10px}.tabs button{padding:9px 12px}.card{padding:22px}.kana-grid{gap:7px}.kana{padding:9px}.study-actions .button{padding:11px 16px}}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}