:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #1f2933;
  --muted: #6b7684;
  --line: #dfe3e8;
  --accent: #2f7d5d;
  --accent-ink: #ffffff;
  --danger: #b3261e;
  --warn: #8a6100;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.6;
}

a { color: var(--accent); }

.site-header {
  display: flex; align-items: center; gap: 24px;
  padding: 10px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.brand a { font-weight: 700; text-decoration: none; color: var(--ink); }
.site-nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.site-nav a {
  padding: 6px 12px; border-radius: 6px; text-decoration: none;
  color: var(--muted);
}
.site-nav a:hover { background: var(--bg); }
.site-nav a.is-active { background: var(--accent); color: var(--accent-ink); }
.site-user { display: flex; gap: 12px; align-items: center; color: var(--muted); font-size: 13px; }

.site-main { max-width: 1100px; margin: 0 auto; padding: 24px 20px 60px; }
.site-footer { text-align: center; color: var(--muted); padding: 20px; }

.page-title { font-size: 20px; margin: 0 0 20px; }

.panel {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: 20px; margin-bottom: 20px;
}
.panel h2 { font-size: 15px; margin: 0 0 12px; color: var(--muted); }

.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; }
.flash-success { background: #e6f4ec; color: #1d5c40; }
.flash-error { background: #fdecea; color: var(--danger); }
.flash-info { background: #eaf1fb; color: #1c4e8a; }

table { border-collapse: collapse; width: 100%; background: var(--panel); }
th, td { border-bottom: 1px solid var(--line); padding: 8px 10px; text-align: left; }
th { background: #f0f2f5; font-weight: 600; font-size: 13px; color: var(--muted); }
td.num, th.num { text-align: right; }
tbody tr:hover { background: #fafbfc; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }

form.inline { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.field label { font-size: 13px; color: var(--muted); }
input[type=text], input[type=email], input[type=password], input[type=date],
input[type=time], input[type=number], select, textarea {
  padding: 7px 9px; border: 1px solid var(--line); border-radius: 6px;
  font-size: 14px; font-family: inherit; background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid #cfe3d8; border-color: var(--accent); }

.btn {
  display: inline-block; padding: 8px 16px; border-radius: 6px;
  border: 1px solid var(--line); background: var(--panel); color: var(--ink);
  cursor: pointer; font-size: 14px; text-decoration: none; font-family: inherit;
}
.btn:hover { background: var(--bg); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { opacity: .9; background: var(--accent); }
.btn-danger { color: var(--danger); border-color: #f0c8c5; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 16px; }
.stat .stat-label { font-size: 12px; color: var(--muted); }
.stat .stat-value { font-size: 26px; font-weight: 700; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; }
.badge-paid { background: #e6f4ec; color: #1d5c40; }
.badge-unpaid { background: #fff4e0; color: var(--warn); }
.badge-canceled { background: #f1f2f4; color: var(--muted); }

.login-wrap { max-width: 360px; margin: 80px auto; }
.muted { color: var(--muted); }
.right { text-align: right; }
.mt { margin-top: 16px; }

.calendar { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.calendar .cal-head { font-size: 12px; color: var(--muted); text-align: center; padding: 4px; }
.calendar .cal-cell {
  min-height: 84px; border: 1px solid var(--line); border-radius: 6px;
  background: var(--panel); padding: 6px; font-size: 12px;
}
.calendar .cal-cell.is-empty { background: transparent; border: none; }
.calendar .cal-cell .cal-date { font-weight: 600; margin-bottom: 4px; }
.calendar .cal-cell a { display: block; text-decoration: none; }
.calendar .cal-slot { background: #eaf3ee; border-radius: 4px; padding: 1px 4px; margin-bottom: 2px; }

@media print {
  .site-header, .site-footer, .no-print { display: none; }
}