/* 管理画面(PC・スマホ両対応) */
:root {
  --navy: #1f3a5f; --navy-dark: #162a45; --bg: #f4f6f9; --card: #fff; --text: #1c2433; --muted: #6b7684;
  --line: #dfe4ea; --ok: #1e7f4f; --ok-bg: #e6f4ec; --warn: #9a3412; --warn-bg: #fdecdf; --radius: 12px;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.5; }
.site-header { background: var(--navy); color: #fff; padding: 12px 20px; display: flex; justify-content: space-between; align-items: center; }
.site-header h1 { font-size: 17px; margin: 0; }
.btn-logout { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.5); border-radius: 8px; padding: 6px 12px; font: inherit; cursor: pointer; }
main { max-width: 1080px; margin: 0 auto; padding: 16px; }
.card { background: var(--card); border-radius: var(--radius); padding: 16px; margin: 12px 0; box-shadow: 0 1px 2px rgba(20,30,50,.06); }
.card.narrow { max-width: 420px; margin: 40px auto; }
.card-title { font-weight: 700; margin-bottom: 8px; }
.muted { color: var(--muted); font-size: 13px; }
.small { font-size: 13px; }
.field { margin: 10px 0; }
.label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
input, select { font: inherit; font-size: 15px; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; background: #fff; color: var(--text); min-height: 40px; }
input[type="email"], input[type="password"] { width: 100%; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.inline-form { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.inline-form.wrap input { flex: 1; min-width: 160px; }
.spacer { flex: 1; }

.tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--line); margin-bottom: 8px; }
.tab { background: transparent; border: 0; font: inherit; font-weight: 700; padding: 10px 16px; color: var(--muted); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -2px; }
.tab.active { color: var(--navy); border-bottom-color: var(--navy); }

.toolbar { display: flex; align-items: center; gap: 8px; margin: 8px 0; flex-wrap: wrap; }
.btn-nav { width: 40px; height: 40px; border: 1px solid var(--line); background: #fff; border-radius: 8px; font-size: 20px; cursor: pointer; }
.month-input { font-size: 17px; font-weight: 700; }

.btn-primary, .btn-secondary, .btn-ghost { font: inherit; font-weight: 700; border-radius: 10px; padding: 12px 18px; cursor: pointer; }
.btn-primary { background: var(--navy); color: #fff; border: 0; width: 100%; }
.btn-secondary { background: #fff; color: var(--navy); border: 2px solid var(--navy); }
.btn-ghost { background: transparent; color: var(--navy); border: 1px solid var(--navy); text-decoration: none; display: inline-block; }
.btn-primary.small, .btn-secondary.small, .btn-ghost.small { width: auto; padding: 8px 12px; font-size: 13px; }
.link { background: none; border: 0; color: var(--navy); font: inherit; text-decoration: underline; cursor: pointer; padding: 0; }
button:disabled { opacity: .5; }

.banner { border-radius: 10px; padding: 10px 12px; font-size: 14px; margin: 8px 0; }
.banner-warn { background: var(--warn-bg); color: var(--warn); }
.banner-ok { background: var(--ok-bg); color: var(--ok); }
.tag { font-size: 12px; padding: 2px 8px; border-radius: 999px; background: #e5e7eb; color: #374151; font-weight: 700; white-space: nowrap; }
.tag.ok { background: var(--ok-bg); color: var(--ok); }
.tag.warn { background: var(--warn-bg); color: var(--warn); margin-left: 4px; }
.tag.closed { background: #e0e7ff; color: #3730a3; }
.code { font-family: ui-monospace, Menlo, monospace; font-weight: 700; letter-spacing: .1em; }

.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 8px 0; }
.kpi { background: var(--navy); color: #fff; border-radius: var(--radius); padding: 14px; }
.kpi .k { font-size: 12px; opacity: .85; }
.kpi .hint { display: block; font-size: 11px; opacity: .7; }
.kpi .v { font-size: 22px; font-weight: 800; margin-top: 4px; }
@media (max-width: 720px) { .kpi-grid { grid-template-columns: 1fr 1fr; } }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: 12px; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.total td { border-top: 2px solid var(--navy); font-weight: 700; }
tr.inactive td { color: var(--muted); }
.bar { display: inline-block; width: 90px; height: 8px; background: var(--line); border-radius: 4px; margin-right: 6px; vertical-align: middle; overflow: hidden; }
.bar span { display: block; height: 100%; background: var(--navy); }

.chart { display: flex; align-items: flex-end; gap: 6px; height: 160px; padding: 8px 0 24px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; position: relative; }
.bar-v { width: 70%; background: var(--navy); border-radius: 4px 4px 0 0; min-height: 2px; }
.bar-l { position: absolute; bottom: -22px; font-size: 11px; color: var(--muted); }

dialog { border: 0; border-radius: var(--radius); padding: 0; max-width: 640px; width: calc(100% - 32px); box-shadow: 0 10px 40px rgba(0,0,0,.25); }
dialog::backdrop { background: rgba(0,0,0,.35); }
.dlg { padding: 18px; }
.dlg h3 { margin: 0 0 10px; font-size: 16px; }
.dlg-row { display: grid; grid-template-columns: 1.2fr 1fr 2fr auto; gap: 6px; margin: 6px 0; }
.dlg-row .x { border: 1px solid var(--line); background: #fff; border-radius: 8px; width: 40px; cursor: pointer; }
.dlg-actions { display: flex; gap: 8px; align-items: center; margin-top: 12px; flex-wrap: wrap; }
ul.plain { padding-left: 18px; font-size: 13px; color: var(--muted); }
@media (max-width: 600px) { .dlg-row { grid-template-columns: 1fr 1fr; } .dlg-row .d { grid-column: 1 / -1; } }

/* display 指定のある要素にも hidden 属性を効かせる(確定/解除ボタンが両方見えた) */
[hidden] { display: none !important; }