:root{--green:#176348;--ink:#233d33;--muted:#64776c;--line:#dce8df;--paper:#f5f8f4}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,'Yu Gothic','Meiryo',sans-serif;font-size:16px}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button,select{cursor:pointer}button,a,input,select,summary{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #dc9c24}button{border:1px solid var(--line);border-radius:12px;background:white;color:var(--ink);padding:14px 12px;font-weight:700;min-height:48px}button:hover{background:#edf5ee}button:disabled{opacity:.45;cursor:default}main{max-width:1320px;margin:auto;padding:0 40px}header{display:flex;align-items:center;justify-content:space-between;min-height:104px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-size:20px;font-weight:800;letter-spacing:.06em}.brand small{display:block;font-size:12px;font-weight:500;margin-top:5px;letter-spacing:.04em}.brandIcon{background:#ffdb66;color:#5a4412;font-size:31px;width:48px;height:48px;border-radius:50%;display:grid;place-items:center}.headerNote{font-size:14px;color:var(--muted)}.toolbar{display:flex;justify-content:space-between;align-items:center;padding:32px 0 24px;gap:16px}.eyebrow{font-size:11px;letter-spacing:.18em;font-weight:800;color:var(--green)}h1{font-size:28px;letter-spacing:.06em;margin:8px 0 0}.monthSelect>span{display:block;font-size:12px;margin-bottom:6px;color:var(--muted)}select{padding:12px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-weight:700;max-width:100%}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:28px;align-items:start}.card{position:relative;border-radius:16px;overflow:hidden;box-shadow:0 6px 24px #254e3510;background:white}.cardImage{display:block;width:100%;height:auto}.cardMonth{position:absolute;left:85.5%;top:10.6%;transform:translate(-50%,-50%);font-size:clamp(18px,4vw,54px);font-weight:900;color:#29170c}.stamp{position:absolute;transform:translate(-50%,-50%);width:7%;font-size:clamp(18px,3.9vw,55px);line-height:1;text-align:center;filter:drop-shadow(0 2px 1px #763e1720);animation:stamp-in .25s ease-out}.cardCaption{display:flex;justify-content:space-between;font-size:12px;line-height:1.6;color:var(--muted);padding:14px 2px;gap:12px}.cardCaption>span:last-child{white-space:nowrap;font-weight:700}.panel{border:1px solid var(--line);background:#fff;border-radius:18px}.controls{padding:24px}.progressHead{display:flex;align-items:center;justify-content:space-between;font-size:13px}.progressHead strong{font-size:34px;color:var(--green)}progress{width:100%;height:8px;border:0;border-radius:10px;overflow:hidden;display:block;margin:12px 0;background:#eaf0e9}progress::-webkit-progress-bar{background:#eaf0e9}progress::-webkit-progress-value{background:var(--green);border-radius:10px}progress::-moz-progress-bar{background:var(--green)}.encourage{font-size:13px;color:var(--muted);margin:0 0 28px}.dateLabel{display:block;font-size:14px;font-weight:700;margin-bottom:9px}input[type=date]{display:block;width:100%;min-width:0;min-height:50px;border:1px solid #bdcec3;border-radius:10px;padding:10px;color:var(--ink);background:white;font-weight:600}.hint{font-size:12px;line-height:1.6;color:var(--muted);margin:9px 0 20px}.primary{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;background:var(--green);border-color:var(--green);color:white;text-decoration:none;border-radius:12px;padding:17px 12px;font-weight:700;min-height:56px}.primary:hover{background:#104b36}.primary>span{font-size:26px}.secondaryActions{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:10px}.secondaryActions button{font-size:13px}.status{font-size:13px;line-height:1.7;margin:12px 0 0;color:var(--green)}.status:empty{display:none}.note{display:flex;gap:12px;padding:22px 8px}.note strong{font-size:13px}.note p{font-size:12px;line-height:1.9;color:var(--muted);margin:8px 0 0}.noteIcon{font-size:25px;color:#9c740e}.history{margin-top:16px;padding:0 24px}.history summary{cursor:pointer;min-height:76px;align-content:center;font-weight:700}.history summary>span{display:inline-block;background:#eaf3ed;color:var(--green);border-radius:20px;padding:5px 10px;margin-left:8px;font-size:12px}.history summary>small{float:right;color:var(--muted);font-weight:400;font-size:12px;margin-top:8px}.empty{color:var(--muted);font-size:14px;padding-bottom:15px;line-height:1.8}.history ol{list-style:none;padding:0 0 12px;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 24px}.history li{display:flex;align-items:center;gap:15px;min-height:66px;border-top:1px solid var(--line);font-size:18px}.count{font-size:16px;color:var(--green);font-weight:700;white-space:nowrap}.count small{font-size:11px;margin-left:3px}.history li>button{margin-left:auto;border:0;background:transparent;padding:8px;font-size:12px;color:var(--muted)}.editRow{display:flex;flex-wrap:wrap;gap:5px;padding:8px 0}.editRow button{font-size:12px;padding:6px;min-height:36px}.editRow input{font-size:14px}.exportPanel{padding:24px;margin-top:20px}.exportPanel h2{font-size:20px}.exportPanel p{font-size:14px;line-height:1.8}.exportActions{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap}.exportActions .primary{width:auto}.exportPanel>img{width:100%;max-width:400px;display:block;margin:auto;border:1px solid var(--line)}footer{text-align:center;color:var(--muted);font-size:12px;line-height:1.9;padding:28px 0 35px}@keyframes stamp-in{from{opacity:0;transform:translate(-50%,-50%) scale(1.4)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}@media(min-width:1400px){.stamp{font-size:55px}}@media(max-width:1000px){main{padding:0 24px}.workspace{grid-template-columns:minmax(0,1fr) 290px;gap:20px}.controls{padding:20px}.history ol{grid-template-columns:repeat(2,minmax(0,1fr))}.stamp{font-size:3.5vw}}@media(max-width:760px){main{padding:0 16px}header{min-height:80px}.brand{font-size:17px}.brandIcon{width:40px;height:40px;font-size:27px}.headerNote{display:none}.toolbar{padding:24px 0 18px;align-items:end}h1{font-size:21px}.eyebrow{font-size:10px}.monthSelect>span{font-size:11px}select{font-size:14px;padding:10px;max-width:180px}.workspace{display:block}.card{border-radius:12px}.stamp{font-size:6vw}.cardMonth{font-size:6vw}.cardCaption{font-size:11px;padding:10px 0 17px}.controls{padding:22px}.progressHead{font-size:14px}.encourage{margin-bottom:22px}.hint{font-size:13px}.secondaryActions button{font-size:14px}.note{padding:22px 6px}.note strong{font-size:14px}.note p{font-size:13px}.history{margin-top:0;padding:0 18px}.history summary>small{font-size:11px}.history ol{grid-template-columns:1fr}.history li{min-height:60px}.history li>button{font-size:14px}.empty{font-size:13px}}@media(prefers-reduced-motion:reduce){.stamp{animation:none}}
@media(max-width:760px){.toolbar{flex-direction:column;align-items:stretch;gap:16px}.toolbar h1{font-size:22px}.monthSelect{display:flex;align-items:center;justify-content:space-between;gap:12px}.monthSelect>span{font-size:13px;margin:0}.monthSelect select{max-width:220px}}

.stamp{height:auto;display:block}.buttonStamp{width:28px;height:28px;object-fit:contain}


.participation{margin-top:16px;padding:20px 24px}.participation .encourage{margin-bottom:0}