:root{font-family:system-ui,-apple-system,'Segoe UI',sans-serif;color:#18243a;background:#f5f7fb}*{box-sizing:border-box}body{margin:0}.wrap{max-width:880px;margin:auto;padding:20px}header{background:#172b4d;color:white;padding:22px 0}header .wrap{padding-top:0;padding-bottom:0}h1{font-size:25px;margin:0}h2{font-size:19px;margin:0 0 14px}p{line-height:1.55}.muted{color:#64748b;font-size:14px}.panel{background:white;border-radius:16px;padding:20px;margin:18px 0;box-shadow:0 2px 12px #172b4d0c}.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.grow{flex:1}input,select,textarea{padding:11px;border:1px solid #cbd5e1;border-radius:9px;font:inherit;max-width:100%;background:white}input[type=number]{width:110px}button{border:0;border-radius:10px;padding:11px 15px;background:#2855a5;color:white;font:inherit;cursor:pointer}button.secondary{background:#e9effa;color:#244475}button:disabled{opacity:.55;cursor:default}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}.metric{background:#f0f5fd;border-radius:12px;padding:15px}.metric strong{font-size:23px;display:block}label{display:block;margin:10px 0 5px;font-weight:600;font-size:14px}.word{font-size:29px;font-weight:750}.hide{display:none!important}.tag{display:inline-block;background:#e8f1ff;color:#24509d;border-radius:99px;padding:5px 9px;font-size:12px;margin-right:6px}.notice{padding:10px 12px;border-radius:10px;background:#fff4df;margin:10px 0;white-space:pre-wrap}.good{background:#e4f7eb}nav{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}nav button{background:#344d74}nav button.active{background:white;color:#17315d}.small{font-size:13px}ul{padding-left:22px}li{margin:8px 0}@media(max-width:500px){.wrap{padding:12px}.panel{padding:15px}.row>*{max-width:100%}}
header{background:linear-gradient(125deg,#142c46,#184b55)}h1 span{font-size:13px;font-weight:400;opacity:.8}.eyebrow{font-size:12px;letter-spacing:2px;color:#bbdfd1}.wrap{max-width:1040px}nav{margin-top:24px}button{transition:background .2s}button:hover{filter:brightness(.94)}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #e6a747;outline-offset:3px}input:not([type=number]):not([type=file]){width:100%}.statusbar{display:flex;gap:12px;justify-content:space-between;flex-wrap:wrap;font-size:13px;color:#526379}.timer{display:flex;gap:20px;align-items:center;flex-wrap:wrap}.timer>div{flex:1}.timer>strong{font-variant-numeric:tabular-nums;font-size:24px}.word{margin:24px 0 12px;font-size:38px}#answer{margin-top:24px;border-top:1px solid #eee;padding-top:20px}#settings button,#addWord{margin-top:14px}hr{border:0;border-top:1px solid #e2e8f0;margin:25px 0}.scene{padding:20px 0;border-bottom:1px solid #e2e8f0}.scene:last-child{border:0}details{margin-top:15px}summary{cursor:pointer;color:#2855a5}.bar-row{display:grid;grid-template-columns:90px 1fr 90px;gap:12px;align-items:center;margin:12px 0;font-size:13px}.bar{height:12px;background:#e9effa;border-radius:6px;overflow:hidden}.bar>div{height:100%;background:#2b8878;min-width:0}.mistake{display:flex;justify-content:space-between;gap:14px;padding:16px 0;border-bottom:1px solid #edf1f5}.panel{border:1px solid #e6ebed;box-shadow:none}#plan li{padding:8px 0}footer{padding-bottom:40px!important}@media(max-width:600px){h1{font-size:23px}h1 span{display:block;margin-top:6px}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.metric{padding:12px}.metric strong{font-size:22px}nav{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}nav button{padding:10px 7px;font-size:13px}.timer{gap:10px}.timer>div{min-width:100%}.bar-row{grid-template-columns:80px 1fr 75px;gap:5px}input,select,textarea{font-size:16px}body{padding-bottom:env(safe-area-inset-bottom)}}
/* Professional desktop + touch layout */
:root{color:#1b3437;background:#f6f7f2}header{background:#143c3b;padding:30px 0}.eyebrow{color:#a8d3b9}h1{letter-spacing:-.6px}h2{letter-spacing:-.35px}.panel{border-color:#e1e8e2;border-radius:22px;padding:26px}.goal-panel{display:flex;align-items:center;justify-content:space-between;gap:24px;background:#e3eee1;border:1px solid #c9dbc6;border-radius:24px;padding:30px;margin:22px 0}.goal-panel .eyebrow{color:#48714c}.goal-panel h2{font-size:28px}.goal-number{font-size:76px;line-height:1.1;font-weight:750;color:#24564b;letter-spacing:-5px}.goal-number small{display:block;font-size:11px;letter-spacing:0;white-space:nowrap;margin-top:12px}.metric{background:#f2f5f0;padding:20px}.metric strong{font-size:30px;margin:8px 0}button{min-height:44px;background:#245e51;border-radius:12px}button.secondary{background:#edf3ef;color:#245e51}nav button{background:#ffffff15}nav button.active{background:#d9edbe;color:#143c3b}.tag{color:#285b49;background:#e6f0df}.word{font-size:clamp(32px,5vw,58px);letter-spacing:-1px}textarea{width:100%;resize:vertical}.scene{padding:24px 0}.statusbar{padding:4px 2px}.bar>div{background:#38745b}.timer{background:#fffdf5}#grammarFeedback,#speakingFeedback{line-height:1.8}#grammarChoices button{flex:1}main{min-height:65vh}button,input,select,textarea{-webkit-tap-highlight-color:transparent}button:focus-visible,textarea:focus-visible{outline:3px solid #bd7e36;outline-offset:3px}@media(max-width:600px){header{padding-top:20px}.goal-panel{padding:20px;align-items:flex-start;gap:14px}.goal-panel h2{font-size:23px}.goal-number{font-size:46px;letter-spacing:-2px}.goal-number small{font-size:9px;white-space:normal}.panel{padding:18px}.wrap{padding-left:max(14px,env(safe-area-inset-left));padding-right:max(14px,env(safe-area-inset-right))}nav{display:flex;flex-wrap:nowrap;overflow-x:auto;padding-bottom:8px}nav button{flex-shrink:0;padding:12px 16px}.metric strong{font-size:24px}#grammarChoices{flex-direction:column;align-items:stretch}.row{gap:8px}.statusbar{font-size:12px}footer{padding-bottom:max(30px,env(safe-area-inset-bottom))!important}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}