:root{
  --bg:#f4f6f9; --card:#fff; --ink:#1f2937; --sub:#6b7280;
  --accent:#2563eb; --accent-ink:#fff; --line:#e5e7eb;
  --ok:#059669; --ng:#dc2626; --warn:#d97706;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Hiragino Sans","Yu Gothic UI","Noto Sans JP",sans-serif;
  background:var(--bg);color:var(--ink);font-size:15px;line-height:1.6;
  padding-bottom:70px}
header.app{position:sticky;top:0;z-index:10;background:var(--accent);
  color:#fff;padding:10px 16px;display:flex;justify-content:space-between;align-items:center}
header.app h1{font-size:16px;font-weight:600}
header.app .tenant{font-size:12px;opacity:.9}
main{max-width:640px;margin:0 auto;padding:12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:14px;margin-bottom:12px}
.card h2{font-size:15px;margin-bottom:8px;border-left:4px solid var(--accent);padding-left:8px}
.card h3{font-size:14px;margin:10px 0 4px}
label{display:block;font-size:12px;color:var(--sub);margin-top:8px}
input,select,textarea{width:100%;padding:9px;border:1px solid var(--line);
  border-radius:8px;font-size:15px;background:#fff}
textarea{min-height:70px}
button{padding:9px 14px;border:none;border-radius:8px;background:var(--accent);
  color:var(--accent-ink);font-size:14px;cursor:pointer;margin-top:8px}
button.secondary{background:#e5e7eb;color:var(--ink)}
button.danger{background:var(--ng)}
button.ghost{background:transparent;color:var(--accent);padding:4px 8px;margin:0}
button:disabled{opacity:.5;cursor:default}
nav.tabs{position:fixed;bottom:0;left:0;right:0;background:#fff;
  border-top:1px solid var(--line);display:flex;z-index:10}
nav.tabs button{flex:1;background:none;color:var(--sub);border-radius:0;
  margin:0;padding:9px 0;font-size:11px;display:flex;flex-direction:column;align-items:center;gap:2px}
nav.tabs button .ico{font-size:19px}
nav.tabs button.active{color:var(--accent);font-weight:600}
.list-item{padding:10px 4px;border-bottom:1px solid var(--line);display:flex;
  justify-content:space-between;align-items:center;gap:8px}
.list-item:last-child{border-bottom:none}
.list-item .meta{font-size:12px;color:var(--sub)}
.badge{display:inline-block;font-size:11px;padding:2px 8px;border-radius:999px;
  background:#e0e7ff;color:#3730a3;white-space:nowrap}
.badge.ok{background:#d1fae5;color:#065f46}
.badge.ng{background:#fee2e2;color:#991b1b}
.badge.warn{background:#fef3c7;color:#92400e}
.msg{padding:10px;border-radius:8px;margin:8px 0;font-size:13px;display:none}
.msg.ok{display:block;background:#d1fae5;color:#065f46}
.msg.ng{display:block;background:#fee2e2;color:#991b1b}
.kv{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px dashed var(--line);font-size:14px}
.kv:last-child{border-bottom:none}
.kv .k{color:var(--sub)}
.answer-btns{display:flex;gap:8px}
.answer-btns button{flex:1;background:#e5e7eb;color:var(--ink)}
.answer-btns button.sel{background:var(--accent);color:#fff}
.center{text-align:center}
.login-wrap{max-width:400px;margin:8vh auto;padding:16px}
.login-wrap .logo{text-align:center;font-size:20px;font-weight:700;color:var(--accent);margin-bottom:16px}
.muted{color:var(--sub);font-size:12px}
.row{display:flex;gap:8px}
.row>*{flex:1}
table.simple{width:100%;border-collapse:collapse;font-size:13px}
table.simple th,table.simple td{padding:6px;border-bottom:1px solid var(--line);text-align:left}
.unread{font-weight:600}
a{color:var(--accent)}