/* Use system fonts so reading also works offline. */
:root{--bg:#f7f6f1;--ink:#243e35;--muted:#7b827b;--line:#dedfd5;--green:#244d40;--accent:#dce6d5;--serif:'Noto Serif SC',Georgia,serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:15px;line-height:1.65}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:3px solid #b38344;outline-offset:4px}button:disabled{opacity:.45;cursor:not-allowed}[hidden]{display:none!important}.app{max-width:960px;margin:auto;padding:0 44px}header{height:114px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--ink);font-size:24px;font-weight:600;letter-spacing:2px}.brand-icon{font-family:var(--serif);background:var(--green);color:#faf8f0;border-radius:13px;padding:2px 12px;font-size:28px}.brand small{display:block;font-size:8px;letter-spacing:2px;font-weight:500}.quiet{background:none;border:0;color:var(--muted);padding:10px}.page{max-width:640px;margin:54px auto 30px;min-height:65vh}.eyebrow{font-size:10px;letter-spacing:2.7px;font-weight:700;color:#7d8976}h1{font-family:var(--serif);font-size:49px;line-height:1.45;font-weight:500;letter-spacing:2px;margin:15px 0}h2{font-size:17px;font-weight:600;margin:0}.intro{color:var(--muted);margin:13px 0 30px}.stats{display:grid;grid-template-columns:repeat(3,1fr);margin:36px 0 40px;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.stats div{display:flex;flex-direction:column;align-items:center;border-right:1px solid var(--line)}.stats div:last-child{border:0}.stats strong{font:34px Georgia,serif}.stats span{font-size:11px;color:var(--muted);margin-top:8px}.section-label{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}.section-label span{font-size:11px;color:var(--muted)}.deck{border:1px solid #d6ded0;border-radius:24px;background:#eaf0e4;padding:28px 30px}.deck-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.pill{font-size:10px;border:1px solid #bdcbb3;border-radius:20px;padding:3px 10px;color:#54694e}.leaf{font-size:28px;color:#849a6e}.muted{color:var(--muted);font-size:12px}.deck label.muted{display:block;font-size:10px}.deck select#deck-select{display:block;max-width:100%;font-family:var(--serif);font-size:24px;font-weight:500;background:transparent;color:var(--ink);border:0;padding:3px 25px 3px 0;overflow:hidden;text-overflow:ellipsis}.deck p{color:#7b8773;font-size:12px;margin:8px 0 20px}.deck-meta{display:flex;gap:26px;font-size:12px;color:#6d7b65}.deck-meta b{color:var(--ink);font-weight:500}.progress-track{height:4px;background:#d5dece;border-radius:4px;margin-top:17px;overflow:hidden}.progress-track>div{height:100%;background:#67815c;width:0;transition:width .3s}.start-line{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-top:24px}.goal-label{font-size:11px;color:#75816c}.goal-label select{font-size:12px;background:transparent;border:0;color:var(--ink)}.primary{border:0;border-radius:12px;background:var(--green);color:#fff;padding:13px 24px;font-size:13px;min-height:47px}.primary span{margin-left:30px}.primary:hover{background:#32634f}.secondary{border:1px solid var(--line);background:#fffdf7;color:var(--ink);border-radius:10px;padding:10px 15px;margin:5px 5px 5px 0}.tip{display:flex;align-items:center;gap:13px;margin:22px 0;color:#8b917e;font-size:12px}.tip>span{font-size:24px}.import-tile{width:100%;display:flex;align-items:center;gap:16px;text-align:left;padding:20px;background:transparent;border:1px dashed #d3d7ca;border-radius:16px;color:var(--ink)}.import-tile>span:nth-child(2){flex:1}.import-tile b{font-size:13px;font-weight:500}.import-tile small{display:block;font-size:11px;color:var(--muted);margin-top:4px}.plus{font-size:25px;color:#8b9b79}.footnote{text-align:center;color:#92988d;font-size:10px;margin:22px 0}.study-head{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted)}.word-card{margin:28px 0 20px;background:#fffef9;border:1px solid var(--line);border-radius:25px;min-height:365px;padding:40px 30px;text-align:center;display:flex;flex-direction:column;justify-content:center;cursor:pointer}.word-card h2{font:46px Georgia,serif;overflow-wrap:anywhere;margin:26px 0 4px}.word-card #pronunciation{color:var(--muted);font-size:13px;margin:0}.divider{height:1px;background:var(--line);width:50px;margin:22px auto}#meaning{font-size:22px;margin:14px 0}#example{font:17px/1.6 Georgia,serif;margin:18px 0 8px}#translation,#note{font-size:12px;color:var(--muted)}.reveal-hint{font-size:11px;color:#a0a495;margin-top:50px}.wide{width:100%}.ratings{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.ratings button{border:1px solid #d9dfd1;background:#eaf0e4;padding:13px 4px;border-radius:12px;color:var(--ink);min-height:68px}.ratings button:first-child{background:#f2e8dd;border-color:#e8d8c7}.ratings b{display:block;font-size:13px;font-weight:500}.ratings small{font-size:10px;color:var(--muted)}nav{position:sticky;bottom:0;display:flex;justify-content:center;gap:65px;background:rgba(247,246,241,.97);border-top:1px solid var(--line);padding:12px 0 max(16px,env(safe-area-inset-bottom));z-index:10}nav button{border:0;background:none;display:flex;flex-direction:column;align-items:center;color:#989d91;font-size:10px;min-width:45px}nav span{font-size:22px;line-height:1.3;margin-bottom:4px}nav .active{color:var(--green)}input[type=search],textarea{width:100%;border:1px solid var(--line);background:#fffef9;border-radius:12px;padding:13px 15px;color:var(--ink);font-size:16px}.filter-row{display:flex;gap:8px;margin:18px 0}.chip{border:1px solid var(--line);border-radius:20px;padding:6px 16px;background:transparent;color:var(--muted);font-size:12px}.chip.active{background:var(--green);border-color:var(--green);color:white}.word-row{padding:18px 2px;border-bottom:1px solid var(--line);display:flex;gap:15px;align-items:center}.word-row>div{flex:1;min-width:0}.word-row strong{font:23px Georgia,serif;overflow-wrap:anywhere}.word-row p{font-size:12px;color:var(--muted);margin:3px 0}.word-row button{font-size:11px;border:1px solid var(--line);background:transparent;color:var(--green);padding:8px 12px;border-radius:9px;min-height:44px}.panel{padding:25px 0;border-bottom:1px solid var(--line)}.panel p{font-size:13px;color:var(--muted)}pre{font-size:11px;background:#eaf0e4;padding:14px;border-radius:10px;overflow:auto}.file-label{display:inline-block;background:var(--green);color:white;border-radius:10px;padding:10px 17px;font-size:13px;cursor:pointer;margin:5px 0 18px}.file-label.secondary{background:transparent;color:var(--ink);margin-bottom:5px}.file-label input{display:none}.panel>label[for=paste]{display:block;font-size:12px;color:var(--muted);margin-top:5px}textarea{margin:10px 0;resize:vertical}.completion-icon{font-size:80px;color:#91a67c;margin:70px 0 20px}#toast{position:fixed;bottom:110px;left:50%;transform:translateX(-50%);max-width:90%;width:max-content;background:var(--green);color:white;font-size:13px;padding:12px 20px;border-radius:12px;z-index:30;box-shadow:0 5px 25px #243e3530}#complete{text-align:center}.empty{padding:40px 0;text-align:center;color:var(--muted)}@media(min-width:900px){.app{max-width:1100px}.page{margin-top:58px;max-width:650px}#home{position:relative;padding-left:275px;max-width:960px}#home>.eyebrow{position:absolute;top:6px;left:0}#home>h1{position:absolute;top:35px;left:0}#home>.intro{position:absolute;top:206px;left:0;max-width:220px;font-size:13px}#home>.stats{margin-top:0}#home>.section-label{margin-top:32px}nav{margin-top:60px}}@media(max-width:600px){.app{padding:0 23px}header{height:90px}.page{margin-top:36px}h1{font-size:42px}.deck{padding:23px}.stats{margin-top:30px}.start-line{gap:5px}.primary{padding:13px 20px}.primary span{margin-left:18px}nav{gap:50px}.word-card{padding:30px 22px;min-height:355px}.word-card h2{font-size:40px}.brand{font-size:21px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}