:root{color-scheme:light;--paper:#f8f7f3;--surface:#fffefa;--ink:#26392f;--green:#35573e;--line:#e0e4d9;--muted:#68756b;--safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif}
*,*::before,*::after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-bottom:110px}body{margin:0;background:var(--paper);color:var(--ink);font-size:15px;line-height:1.7}button,input,textarea,select{font:inherit;color:inherit}button{cursor:pointer;min-height:44px;max-width:100%;white-space:normal;overflow-wrap:anywhere;touch-action:manipulation}button:disabled{opacity:.5;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #b78d4e;outline-offset:3px}button,a,input,textarea,summary{-webkit-tap-highlight-color:#35573e20}small,.muted{color:var(--muted)}h1,h2,h3,p{overflow-wrap:anywhere}h1{font-size:clamp(26px,3.2vw,34px);line-height:1.4;letter-spacing:-.04em;margin:10px 0}h2{font-size:21px;line-height:1.5;margin:0 0 14px}h3{font-size:16px;line-height:1.5;margin:14px 0}p{margin:12px 0}main,section,header,.grid>*,.right>*,.row>*{min-width:0}
aside{position:fixed;inset:0 auto 0 0;width:220px;height:100vh;height:100dvh;padding:calc(32px + var(--safe-top)) 23px 24px;background:var(--surface);border-right:1px solid var(--line);z-index:25}.brand{font-size:23px;font-weight:800;line-height:1.5}.brand span{color:#b75037}aside>small{font-size:12px}nav{margin-top:40px;display:grid;gap:6px}nav button{border:0;background:transparent;padding:13px 12px;border-radius:9px;text-align:left;display:flex;gap:10px;align-items:center;color:#67716a}nav button.active{background:#e9eee3;color:var(--green);font-weight:700}.nav-icon{font-size:20px;line-height:1;flex-shrink:0}.sidebottom{position:absolute;bottom:26px;left:23px;right:23px;font-size:12px}.sidebottom .note{font-size:12px}
main{width:calc(100% - 220px);max-width:1320px;margin-left:220px;padding:30px clamp(24px,3.5vw,50px) 40px}header{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:18px}.toplabel{font-size:11px;color:#8c795b;letter-spacing:.08em}.badge,.status-pill{display:inline-flex;align-items:center;max-width:100%;font-size:12px;line-height:1.5;border:1px solid #d9dfd2;border-radius:24px;padding:6px 12px;background:var(--surface);overflow-wrap:anywhere}.status-pill{background:#eaf0e2;border:0}.toggle-reading{font-size:12px;white-space:nowrap;padding:8px 12px}.intro{padding:28px 0 24px;display:flex;justify-content:space-between;align-items:center;gap:18px}.intro>div{min-width:0}.eyebrow{font-size:11px;letter-spacing:.16em;font-weight:700;color:#858b69}.seal{width:84px;height:84px;flex:0 0 84px;border:1px solid #d6dacc;border-radius:50%;display:grid;place-content:center;text-align:center;color:#8b9871;font:25px/1.1 serif;transform:rotate(8deg)}.seal small{font:11px/1.7 sans-serif}
.grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(240px,280px);gap:22px}.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px;margin:0 0 20px;min-width:0}.hero{background:#eaf0e2;position:relative;isolation:isolate;padding:28px;overflow:hidden}.hero:after{content:'あ';position:absolute;z-index:-1;right:8px;bottom:-46px;color:#dce5d1;font:170px/1 serif;pointer-events:none}.hero h2{font-size:clamp(24px,3vw,29px);margin-top:14px}.hero p{max-width:100%}.row{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.primary,.secondary{border-radius:8px;padding:10px 16px;line-height:1.5;text-align:center}.primary{border:1px solid var(--green);background:var(--green);color:white;font-weight:700}.secondary{border:1px solid #d6ddcf;background:var(--surface);color:var(--green)}.chips,.toolbar{display:flex;gap:8px;flex-wrap:wrap}.chip{background:#f0f2e9;color:#667551;border-radius:5px;padding:4px 8px;font-size:11px}.toolbar{margin:16px 0}.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.step{padding:14px 12px;background:#f7f7f1;border-radius:9px;font-size:13px;overflow-wrap:anywhere}.step b{display:block;color:var(--green)}.minute{font-size:12px;color:#9b704a}.line{padding:13px 0;border-bottom:1px solid #eceee5}.line:last-child{border-bottom:0}.circle{width:124px;min-height:124px;border-radius:50%;border:9px solid #e4e9dc;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;margin:20px auto;text-align:center;flex-shrink:0;padding:12px 5px}.circle strong{font-size:24px;line-height:1.1;white-space:nowrap;max-width:100%;font-variant-numeric:tabular-nums}.circle small{font-size:10px;line-height:1.35;max-width:92px;overflow-wrap:normal;word-break:keep-all}.note{padding:14px 16px;border-left:3px solid #c6a16c;background:#faf5e9;font-size:13px;overflow-wrap:anywhere}.jp{font-family:"Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo","Noto Sans JP",system-ui,sans-serif;font-size:clamp(23px,2.5vw,28px);line-height:2.3;letter-spacing:.01em;overflow-wrap:anywhere;word-break:normal}.example{background:#f6f7f0;border-radius:10px;padding:18px;margin:14px 0}.example p{margin:10px 0}.tabs{display:flex;gap:8px;margin:16px 0 20px;flex-wrap:wrap}.tabs button{flex:1 1 120px;border:1px solid #dde3d3;background:var(--surface);border-radius:22px;padding:9px 14px;font-size:13px;line-height:1.5}.tabs button.selected{background:var(--green);color:white}.hidden{display:none!important}textarea,input[type=text]{display:block;width:100%;min-width:0;padding:12px;border:1px solid #cfd8c6;border-radius:8px;background:white;margin:10px 0;font-size:16px}textarea{resize:vertical}label.choice{display:flex;gap:10px;align-items:flex-start;padding:12px;border:1px solid #dfe4d5;border-radius:8px;margin:9px 0;overflow-wrap:anywhere}input[type=checkbox],input[type=radio]{flex:0 0 auto;width:18px;height:18px;accent-color:var(--green);margin:4px 5px 0 0}label.choice:has(input:checked){background:#eaf0e2;border-color:#6c8b61}.practicecheck{display:flex;align-items:flex-start;gap:6px;margin:16px 0}.feedback{padding:15px;border-radius:9px;background:#edf1e3;margin:14px 0;white-space:pre-line;overflow-wrap:anywhere}.lessonlist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.lessonitem{display:block;min-width:0;background:var(--surface);border:1px solid #dce2d3;border-radius:12px;padding:18px;text-align:left}.lessonitem.current{border-color:#55784b}.lessonitem h2{font-size:20px}.progress{height:6px;background:#e2e8da;border-radius:4px;margin-top:15px;overflow:hidden}.progress i{display:block;background:#68865a;height:100%}audio{display:block;width:100%;max-width:100%;height:44px;margin-top:12px}footer{color:#75816f;font-size:11px;margin-top:24px;overflow-wrap:anywhere}.feature-note,.storage-note{font-size:12px;color:var(--muted)}.storage-note{margin:16px 0}.score{font-size:30px;font-weight:800}ruby{ruby-align:center;white-space:nowrap}rt{font-size:.48em;font-weight:400;color:#66765d;letter-spacing:0;line-height:1.1}.hide-readings rt{visibility:hidden}.due-item{padding:14px;border:1px solid #d8e2cb;border-radius:10px;margin:10px 0;overflow-wrap:anywhere}.due-item p:last-child{margin-bottom:0}.mobile-only{display:none}
.bottom-sheet{border:0;border-radius:18px;width:min(900px,calc(100vw - 32px));max-width:calc(100vw - 32px);max-height:94vh;max-height:94dvh;padding:20px;background:var(--surface);color:var(--ink);box-shadow:0 15px 80px #26392f33;overflow:auto;overscroll-behavior:contain}.bottom-sheet::backdrop{background:#17291dbb}.sheet-head{position:sticky;top:-20px;background:var(--surface);z-index:2;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 0}.sheet-head h2{font-size:19px;min-width:0;margin:0}.sheet-head button{flex:0 0 auto}.comparison{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.comparison>div{min-width:0;background:#f2f5e9;padding:14px;border-radius:9px;overflow-wrap:anywhere}#ink{display:block;width:100%;height:250px;border:1px solid #ccd7be;border-radius:10px;touch-action:none;background-color:white;background-image:linear-gradient(#e5eadd 1px,transparent 1px),linear-gradient(90deg,#e5eadd 1px,transparent 1px);background-size:60px 60px}#ink:focus{outline:3px solid #8ba379}body:has(dialog[open]){overflow:hidden}.dialog-fallback[open]{position:fixed;inset:16px;z-index:100;margin:auto}
.audio-status{position:fixed;right:20px;bottom:20px;z-index:70;display:flex;align-items:center;gap:10px;width:max-content;max-width:min(480px,calc(100vw - 32px));padding:10px 12px;border:1px solid #c7d4bd;border-radius:12px;background:var(--surface);box-shadow:0 4px 24px #26392f20;font-size:13px}.audio-status[hidden]{display:none}.audio-status span{min-width:0;overflow-wrap:anywhere}.audio-status button{min-height:40px;flex:0 0 auto;padding:7px 10px}.audio-status[data-state=error]{border-color:#b98764}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:900px) and (max-height:680px){.sidebottom{display:none}}
@media(max-width:1140px){.grid{grid-template-columns:minmax(0,1fr)}.right{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.right .card{height:100%}.steps{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:899px){aside{position:static;inset:auto;width:100%;height:auto;padding:calc(14px + var(--safe-top)) 20px 14px;border-right:0;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:baseline;flex-wrap:wrap;column-gap:12px;font-size:20px}.brand br{display:none}.brand span{font-size:19px}aside>small{display:block;font-size:11px}.sidebottom{display:none}nav{position:fixed;inset:auto 0 0;z-index:50;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;margin:0;padding:7px 8px calc(7px + var(--safe-bottom));background:#fffefa;border-top:1px solid #dce3d2;box-shadow:0 -2px 14px #26392f08}nav button{min-width:0;display:flex;flex-direction:column;justify-content:center;gap:4px;text-align:center;padding:7px 2px;font-size:11px;line-height:1.3;white-space:nowrap;min-height:54px}.nav-icon{font-size:19px}body{padding-bottom:calc(88px + var(--safe-bottom))}main{width:100%;max-width:none;margin-left:0;padding:18px clamp(16px,3vw,28px) 28px}header{padding-bottom:14px}.toplabel{display:none}.badge{font-size:11px;white-space:nowrap}.toggle-reading{font-size:12px}.intro{padding:24px 0 20px}.seal{display:none}.audio-status{right:16px;bottom:calc(88px + var(--safe-bottom));max-width:calc(100vw - 32px)}.tabs{position:sticky;top:0;z-index:15;background:var(--paper);padding:9px 0;gap:6px}.tabs button{flex-basis:0;min-width:0;padding:9px 5px}.mobile-only{display:block}.intro:has(#timer){align-items:flex-start;flex-direction:column;gap:12px}}
@media(max-width:599px){.card{padding:19px;border-radius:14px;margin-bottom:16px}.hero{padding:22px}.hero .primary{width:100%;margin-top:8px}.steps{grid-template-columns:repeat(2,minmax(0,1fr))}.right{display:block}.right .card{height:auto}.lessonlist{grid-template-columns:minmax(0,1fr)}.toolbar button{flex:1 1 120px}.comparison{grid-template-columns:minmax(0,1fr)}.bottom-sheet{width:100%;max-width:100%;max-height:96vh;max-height:96dvh;margin:auto 0 0;border-radius:18px 18px 0 0;padding:16px 16px calc(18px + var(--safe-bottom))}.sheet-head{top:-16px}.sheet-head h2{font-size:17px}#ink{height:220px}.feature-note{font-size:12px}.circle{width:124px;min-height:124px}.intro .muted{font-size:13px}.jp{font-size:25px}.audio-status{font-size:12px}}
@media(max-width:359px){main{padding-left:12px;padding-right:12px}.card{padding:16px}.step{padding:12px 9px;font-size:12px}.badge{font-size:10px;padding:6px 9px}.toggle-reading{font-size:11px;padding:8px 9px}.tabs button{font-size:12px}.jp{font-size:23px}nav button{font-size:10px}.brand{font-size:18px}.brand span{font-size:17px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

fieldset,form{min-inline-size:0;min-width:0;max-width:100%}summary{cursor:pointer;touch-action:manipulation}#result button{margin:6px 6px 6px 0}

.record-actions{gap:12px}.record-actions button{flex:0 1 auto}@media(max-width:599px){.record-actions{display:grid;grid-template-columns:minmax(0,1fr)}.record-actions button{width:100%}}