:root{--c:#0284ae;--c2:#03a3d3;--sand:#fdd78e;--bg:#f3f9fc;--line:#d6e8ef;--txt:#14323d;--sub:#56707a}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"Hiragino Sans","Noto Sans JP",sans-serif;background:var(--bg);color:var(--txt);font-size:16px}
header{position:sticky;top:0;z-index:5;background:var(--c);color:#fff;padding:calc(env(safe-area-inset-top) + 10px) 14px 10px;display:flex;align-items:center;gap:10px}
header h1{font-size:18px;margin:0}
.back{color:#fff;text-decoration:none;font-size:16px;white-space:nowrap}
main{padding:12px 12px 40px;max-width:640px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
.btn{display:flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:#fff;color:var(--txt);border-radius:12px;padding:12px;font-size:16px;text-decoration:none;cursor:pointer;width:100%}
.btn.big{padding:16px;font-size:18px;font-weight:600}
.btn.small{padding:9px;font-size:14px}
.btn.primary{background:var(--c);color:#fff;border-color:var(--c)}
.btn.danger{color:#b3261e;background:transparent;border-color:#e3b9b6;margin-top:16px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.card{background:#fff;border-radius:14px;padding:12px;display:flex;flex-direction:column;gap:8px;border:1px solid var(--line)}
.ttl{font-weight:600}
label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--sub)}
input,select,textarea{font-size:16px;padding:10px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--txt);width:100%;font-family:inherit}
.list{display:flex;flex-direction:column;gap:8px}
.day-row{display:flex;gap:10px;background:#fff;border-radius:14px;padding:10px;text-decoration:none;color:inherit;border:1px solid var(--line);align-items:center}
.thumb{width:64px;height:64px;border-radius:10px;object-fit:cover;flex:none}
.ph{background:#e2f3f9;display:flex;align-items:center;justify-content:center;font-size:26px;color:var(--sub)}
.ph.big{height:200px;border-radius:14px;font-size:16px}
.grow{flex:1;min-width:0}
.dl{font-weight:600}
.sub{font-size:13px;color:var(--sub)}
.memo{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tag{display:inline-block;font-size:12px;background:var(--sand);color:#6b4a0c;padding:1px 7px;border-radius:8px;font-weight:600}
.empty{text-align:center;color:var(--sub);padding:30px 0}
.note{font-size:12px;color:var(--sub);margin:4px 0}
.warn{color:#b3261e}
.photo-box img{width:100%;max-height:340px;object-fit:cover;border-radius:14px;display:block}
.tidebig{font-size:24px;font-weight:700;color:var(--c)}
.tg{width:100%;height:auto}
.tg .curve{fill:none;stroke:var(--c2);stroke-width:2.5}
.tg .grid{stroke:#e6ecef;stroke-width:1}
.tg .ax{font-size:9px;fill:#8a989f}
.tg .evt{font-size:9px;fill:var(--c);font-weight:600}
.tg .band{fill:var(--sand);opacity:.55}
.tg .fish{fill:#e8762c;stroke:#fff;stroke-width:1.5}
.session{font-size:14px;display:flex;flex-direction:column;gap:3px;background:#fff6e2;padding:8px;border-radius:10px}
.tools{margin-top:20px;color:var(--sub)}
.tools summary{padding:8px 0}
.tools .btn{margin-top:8px}
.toast{position:fixed;left:50%;bottom:calc(30px + env(safe-area-inset-bottom));transform:translateX(-50%);background:rgba(20,30,35,.9);color:#fff;padding:10px 16px;border-radius:20px;font-size:14px;z-index:99;max-width:90%}
.modal{position:fixed;inset:0;z-index:50;background:#fff;display:flex;flex-direction:column}
.mapdiv{flex:1;min-height:0}
.mapbar{position:relative;z-index:1000;background:#fff;display:flex;gap:8px;align-items:center;padding:10px 10px calc(10px + env(safe-area-inset-bottom));font-size:14px}
.mapbar span{flex:1}
.mapbar .btn{width:auto;padding:9px 16px}
.secret{margin-left:auto;font-size:12px;opacity:.85}
.brand{display:flex;align-items:center;gap:8px}.brand img{width:30px;height:30px;border-radius:8px}