/* 授業リンク 共通スタイル（指名・席替え・チーム分け） */
:root{
  --paper:#f4f7f3;--ink:#14211e;--ink-soft:#4a5a55;--line:#d5ddd7;--board:#1b3832;
  --focus:#2f6fd0;--danger:#b3342f;
  --accent:#1b3832;--accent-ink:#fff;--accent-soft:#eef1ee;
  --font:"Hiragino Sans","Hiragino Kaku Gothic ProN","BIZ UDPGothic","Yu Gothic UI","Noto Sans JP",Meiryo,system-ui,sans-serif;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:.9375rem;line-height:1.7}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:8px}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;touch-action:manipulation}
button:disabled{cursor:default;opacity:.45}
[hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.page{width:min(1080px,100% - 32px);margin:0 auto;padding:14px 0 56px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.topbar h1{margin:0;font-size:1.3rem;font-weight:800;letter-spacing:.02em}
.jl-logo{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;background:#1b3832;flex:none;text-decoration:none}
.jl-logo svg{width:26px;height:26px}

.panel{background:#fff;border:2px solid var(--line);border-radius:18px;padding:14px 16px}
.panel>h2,.panel>.h{margin:0 0 8px;font-size:.95rem;font-weight:800}
.stack{display:grid;gap:12px}
.hint{margin:6px 0 0;font-size:.82rem;color:var(--ink-soft);line-height:1.6}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:0 18px;border-radius:12px;border:2px solid var(--line);background:#fff;font-weight:700;white-space:nowrap}
.btn:hover:not(:disabled){border-color:var(--ink)}
.btn:active:not(:disabled){transform:scale(.98)}
.btn.sm{min-height:36px;padding:0 12px;font-size:.85rem;border-radius:10px}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover:not(:disabled){filter:brightness(1.08);border-color:var(--accent)}
.btn.big{min-height:56px;padding:0 28px;font-size:1.1rem;border-radius:16px}
.btn.danger{color:var(--danger);border-color:#e6c4c1}
.field{display:grid;gap:4px}
.field>label,.label{font-weight:700;font-size:.85rem;color:var(--ink-soft)}
input[type=text],input[type=number],select,textarea{width:100%;min-height:42px;padding:6px 12px;border:2px solid var(--line);border-radius:12px;background:#fff}
input[type=number]{width:96px}
textarea{resize:vertical;line-height:1.6}
input:focus,select:focus,textarea:focus{border-color:var(--accent);outline:none}
.inline{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.seg{display:inline-flex;border:2px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.seg button{border:0;background:transparent;min-height:40px;padding:0 18px;font-weight:700}
.seg button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink)}

/* ---- 名簿 ---- */
.rs{display:grid;gap:10px}
.rs-row{display:flex;gap:8px;align-items:center}
.rs-row select{flex:1;min-width:0}
.rs-empty{margin:0;color:var(--ink-soft)}
.rs details{border:2px solid var(--line);border-radius:12px;padding:6px 12px;background:#fafcfa}
.rs summary{cursor:pointer;font-weight:700;font-size:.88rem;min-height:32px;display:flex;align-items:center;gap:8px}
.rs-tools{display:flex;gap:6px;margin:6px 0}
.rs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(8.5em,1fr));gap:2px 10px;max-height:260px;overflow:auto;padding:2px 0}
.rs-grid label{display:flex;align-items:center;gap:8px;min-height:34px;cursor:pointer}
.rs-grid input{width:18px;height:18px;accent-color:var(--accent);flex:none}

/* ---- ダイアログ・通知 ---- */
.jl-dialog{border:0;border-radius:20px;padding:20px;width:min(460px,calc(100vw - 32px));box-shadow:0 20px 60px rgba(0,0,0,.35);color:var(--ink);font-family:var(--font)}
.jl-dialog::backdrop{background:rgba(20,33,30,.55)}
.jl-dialog h2{margin:0 0 12px;font-size:1.05rem}
.jl-msg{margin:0 0 16px;white-space:pre-line;line-height:1.7}
.jl-actions{display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap;margin-top:14px}
.jl-actions .spacer{flex:1}
.jl-form{display:grid;gap:12px}
.jl-err{margin:0;color:var(--danger);font-weight:700;min-height:1.4em;font-size:.88rem}
.jl-toast{position:fixed;left:50%;bottom:max(24px,env(safe-area-inset-bottom));transform:translateX(-50%);z-index:100;max-width:min(92vw,480px);padding:10px 18px;border-radius:12px;background:var(--ink);color:#fff;font-weight:700;text-align:center}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}