*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Meiryo', 'MS Gothic', 'Hiragino Sans', sans-serif;
  background: #f0f2f5;
  color: #333;
}

/* ── Sidebar ──────────────────────────────────────────────── */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0; width: 220px;
  background: #2c3e50; color: #ecf0f1;
  display: flex; flex-direction: column; z-index: 100;
}
.logo {
  padding: 20px 16px; font-size: 1.05rem; font-weight: bold;
  border-bottom: 1px solid #3d5166; letter-spacing: 0.03em;
}
.sidebar ul { list-style: none; padding: 10px 0; flex: 1; }
.sidebar ul li a {
  display: block; padding: 11px 20px; color: #bdc3c7;
  text-decoration: none; font-size: 0.88rem; transition: background 0.15s, color 0.15s;
}
.sidebar ul li a:hover { background: #3d5166; color: #ecf0f1; }

/* ── Main content ─────────────────────────────────────────── */
.content { margin-left: 220px; padding: 26px 30px; min-height: 100vh; }
h1 { font-size: 1.35rem; font-weight: bold; margin-bottom: 22px; color: #2c3e50; }
h2 { font-size: 1.05rem; font-weight: bold; margin: 26px 0 12px; color: #2c3e50; }

/* ── KPI cards ────────────────────────────────────────────── */
.kpi-row { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.kpi-card {
  background: #fff; border-radius: 8px; padding: 18px 24px;
  box-shadow: 0 1px 5px rgba(0,0,0,0.08); flex: 1; min-width: 150px;
}
.kpi-label { font-size: 0.78rem; color: #888; margin-bottom: 6px; }
.kpi-value { font-size: 1.55rem; font-weight: bold; color: #2c3e50; }
.kpi-sub   { font-size: 0.72rem; color: #aaa; margin-top: 5px; }

/* ── Forms ────────────────────────────────────────────────── */
.form-row {
  display: flex; align-items: center; gap: 10px;
  flex-wrap: wrap; margin-bottom: 18px;
  background: #fff; padding: 14px 18px; border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.07);
}
.form-row label { font-size: 0.85rem; font-weight: bold; white-space: nowrap; }
.form-row input[type=date], .form-row select {
  padding: 6px 10px; border: 1px solid #ccc; border-radius: 4px;
  font-size: 0.88rem; background: #fafafa;
}
.btn {
  padding: 7px 18px; border: none; border-radius: 4px;
  cursor: pointer; font-size: 0.88rem; font-weight: bold;
  text-decoration: none; display: inline-block;
}
.btn-primary { background: #2980b9; color: #fff; }
.btn-primary:hover { background: #2471a3; }
.btn-success { background: #27ae60; color: #fff; }
.btn-success:hover { background: #1e8449; }
.btn-warning { background: #e67e22; color: #fff; }
.btn-warning:hover { background: #ca6f1e; }

/* ── Chart containers ─────────────────────────────────────── */
.chart-full {
  background: #fff; border-radius: 8px; padding: 8px;
  box-shadow: 0 1px 5px rgba(0,0,0,0.08); margin-bottom: 18px;
}
.chart-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 16px; margin-bottom: 24px;
}
.chart-card {
  background: #fff; border-radius: 8px; padding: 8px;
  box-shadow: 0 1px 5px rgba(0,0,0,0.08);
}

/* ── Tables ───────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto; background: #fff; border-radius: 8px;
  box-shadow: 0 1px 5px rgba(0,0,0,0.08); margin-bottom: 24px;
}
table { width: 100%; border-collapse: collapse; font-size: 0.84rem; }
thead th {
  background: #2c3e50; color: #fff; padding: 10px 13px;
  text-align: left; white-space: nowrap;
}
tbody tr:nth-child(even) { background: #f9f9f9; }
tbody td {
  padding: 8px 13px; border-bottom: 1px solid #eee; white-space: nowrap;
}
tbody tr:hover { background: #eef3f7; }
.row-urgent { background: #fdecea !important; }
.row-recommended { background: #fff8e1 !important; }

/* ── Badges ───────────────────────────────────────────────── */
.badge {
  display: inline-block; padding: 2px 9px; border-radius: 10px;
  font-size: 0.74rem; font-weight: bold;
}
.badge-a   { background: #d5e8d4; color: #2d7a2d; }
.badge-b   { background: #dae8fc; color: #1a5276; }
.badge-c   { background: #f8cecc; color: #922b21; }
.badge-rec { background: #ffd700; color: #7d6608; }

/* ── Alerts & summary bar ─────────────────────────────────── */
.alert {
  padding: 12px 16px; border-radius: 6px; margin-bottom: 16px;
  font-size: 0.9rem;
}
.alert-info  { background: #d6eaf8; color: #1a5276; }
.alert-error { background: #fdecea; color: #922b21; }

.summary-bar {
  display: flex; gap: 24px; padding: 12px 18px;
  background: #fff; border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.07);
  margin-bottom: 18px; font-size: 0.9rem; flex-wrap: wrap;
}
.summary-bar span { font-weight: bold; color: #2c3e50; }

/* ── Loading spinner ──────────────────────────────────────── */
#loading {
  display: none; text-align: center; padding: 50px 0;
}
.spinner {
  display: inline-block; width: 44px; height: 44px;
  border: 4px solid #ddd; border-top-color: #2980b9;
  border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
#loading p { margin-top: 14px; color: #888; font-size: 0.9rem; }

#forecast-chart { min-height: 60px; }