:root{font-family:system-ui,-apple-system,"Noto Sans JP",sans-serif;color:#253e3a;background:#f5f6f2;font-size:15px;line-height:1.65;--accent:#286b5e;--line:#dce4dc}*{box-sizing:border-box}body{margin:0}a{color:var(--accent)}header{background:white;border-bottom:1px solid var(--line);padding:18px 28px;display:flex;gap:24px;align-items:center}header>a:last-child{margin-left:auto;font-size:.85rem}.brand{font-size:1.35rem;font-weight:750;text-decoration:none}.shell{display:grid;grid-template-columns:190px minmax(0,1fr);min-height:90vh}nav{padding:28px 16px;border-right:1px solid var(--line)}nav button{display:block;width:100%;text-align:left;margin:0 0 8px;background:transparent;color:#48605a}nav button.active{background:#deebe4;color:#164f43}main{max-width:1350px;width:100%;padding:32px}h1{font-size:1.65rem;margin:0 0 4px}h2{font-size:1.15rem;margin:0 0 16px}h3{font-size:1rem;margin:0 0 8px}p{margin:8px 0 16px}.muted,small{color:#62766d}.toolbar,.actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:16px 0}.toolbar input{width:auto}.toolbar h2{margin:0}.card{background:white;border:1px solid var(--line);border-radius:14px;padding:22px;margin:16px 0}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px 0}.stats .card{margin:0}.stat{display:block;font-size:1.75rem;font-weight:700}.columns{display:grid;grid-template-columns:1fr 1fr;gap:20px}button,.button{font:inherit;background:var(--accent);color:#fff;border:1px solid transparent;border-radius:8px;padding:10px 16px;cursor:pointer;text-decoration:none;display:inline-block;min-height:44px}button.secondary,.button.secondary{background:#edf2ed;color:#31594f;border-color:var(--line)}button.danger{background:#963f35}button:disabled{cursor:default;background:#e1e5e1;color:#68766d}input,select,textarea{font:inherit;border:1px solid #b8c7bd;border-radius:7px;padding:10px;background:#fff;color:#253e3a;width:100%;min-height:44px}textarea{min-height:80px}label{display:block;font-size:.9rem;margin-bottom:14px}[hidden]{display:none!important}label input,label select,label textarea{display:block;margin-top:5px}input[type=checkbox]{width:auto;min-height:auto;display:inline}input[type=file]{max-width:100%}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}.row{display:flex;gap:14px;align-items:center;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--line);flex-wrap:wrap}.row:last-child{border:0}.row>div:first-child{flex:1;min-width:150px}.row select{width:auto;max-width:100%}.badge{display:inline-block;font-size:.8rem;padding:2px 8px;border-radius:12px;background:#edf2ed}.warn{background:#fff1d9;color:#83561b}.paid{color:#216948;background:#e3f1e5}.empty{padding:20px;color:#62766d;text-align:center}.calendar{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:5px}.day{background:white;border:1px solid var(--line);border-radius:8px;padding:8px;min-height:125px}.day.today{border:2px solid var(--accent)}.day.outside{opacity:.5}.day .lesson{display:block;text-align:left;width:100%;font-size:.78rem;padding:6px;margin:6px 0;background:#edf4ee;color:#254f43;min-height:44px}.day .lesson.recorded{background:#dce9de}.day-title{font-size:.85rem;font-weight:bold}.calendar-head{text-align:center;font-size:.85rem}.notice{border-left:4px solid #cba363;background:#fff8e9;padding:14px;margin:20px 0}dialog{border:0;border-radius:14px;padding:28px;max-width:640px;width:calc(100% - 28px);max-height:90vh;overflow:auto}dialog::backdrop{background:#153b3355}#form-error{color:#a03125}#message{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#253e3a;color:white;padding:12px 22px;border-radius:10px;display:none;max-width:90%;z-index:10}button:focus-visible,a:focus-visible{outline:3px solid #be8847;outline-offset:3px}.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.plan-grid .card{margin:0}.wide{grid-column:1/-1}@media(max-width:900px){.stats{grid-template-columns:1fr 1fr}.shell{grid-template-columns:1fr}nav{display:flex;overflow-x:auto;padding:10px;gap:6px;border-right:0;border-bottom:1px solid var(--line)}nav button{width:auto;white-space:nowrap;margin:0}main{padding:20px}.columns{grid-template-columns:1fr}.calendar{grid-template-columns:repeat(7,minmax(90px,1fr));overflow-x:auto}.calendar-wrap{overflow-x:auto}.plan-grid{grid-template-columns:1fr}}@media(max-width:540px){header{padding:14px;gap:10px}#school{display:none}main{padding:16px}.card{padding:16px}.stats{gap:10px}.stat{font-size:1.4rem}.form-grid{grid-template-columns:1fr}.calendar{display:block}.calendar-head,.day.outside{display:none}.day{min-height:auto;margin-bottom:10px}.day .lesson{font-size:.95rem}.row select{width:100%}}

.operator{text-align:center;padding:24px 16px;font-size:13px;overflow-wrap:anywhere}

/* 2026-11-13 公開前点検：スマホで押しやすいよう、ヘッダー・フッターのリンクの押せる範囲を広げる */
header>a:last-child,.operator a{display:inline-block;padding:8px 0}

/* 保護者の振替予約ページ（先生側）の見出しの間隔 */
#furikae-panel h3{margin-top:22px}#furikae-slot-form{margin-top:12px}

/* 規約の原文表示（app/legal.html）。CSP で style 属性を使えないため、ここに置く。 */
.legal-text { white-space: pre-wrap; overflow-wrap: anywhere; font: inherit; line-height: 1.8; }

.demo-banner{margin:0;border-left-color:#3f7d6e;background:#e9f4ef;padding:10px 16px}.demo-banner p{margin:0}.demo-banner .actions{margin:8px 0 0}.limit-note{margin:0 0 12px}.limit-note a{margin-left:8px}