:root {
  --color-primary: #1f3556;
  --color-primary-dark: #16263f;
  --color-accent: #2dbe9d;
  --color-accent-dark: #219c80;
  --color-orange: #f28c38;
  --color-orange-dark: #d9761f;
  --color-danger: #dc2626;
  --color-danger-dark: #b91c1c;
  --color-warn: #d97706;
  --color-caution: #ca8a04;
  --color-border: #d8dee6;
  --color-bg: #f8fafc;
  --color-text: #1f2937;
  --color-muted: #6b7280;
  --nav-height: 56px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}

.app-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-primary);
  color: #fff;
  height: var(--nav-height);
  padding: 0 1.5rem;
  border-bottom: 3px solid var(--color-accent);
  position: sticky;
  top: 0;
  z-index: 20;
}

.app-nav .brand {
  font-weight: 600;
}

.app-nav .links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  flex-wrap: wrap;
}

.app-nav .nav-sep {
  width: 1px;
  height: 1.1rem;
  background: rgba(255, 255, 255, 0.25);
}

.app-nav a {
  color: #d1d5db;
  text-decoration: none;
  font-size: 0.9rem;
}

.app-nav a.active,
.app-nav a:hover {
  color: var(--color-accent);
}

.page {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.page.page-narrow {
  max-width: 960px;
}

.page.page-wide {
  max-width: none;
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card h2 {
  margin-top: 0;
  font-size: 1.1rem;
  color: var(--color-primary);
}

h1 {
  font-size: 1.4rem;
  color: var(--color-primary);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.85rem;
  white-space: nowrap;
}

th {
  color: var(--color-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
}

td.num, th.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.table-scroll {
  overflow-x: auto;
}

.table-scroll table thead th {
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 2;
}

.table-scroll table th:first-child,
.table-scroll table td:first-child {
  position: sticky;
  left: 0;
  background: #fff;
  z-index: 1;
}

.table-scroll table thead th:first-child {
  z-index: 3;
}

tr.row-total td {
  font-weight: 700;
  border-top: 2px solid var(--color-border);
}

.btn {
  display: inline-block;
  border: none;
  border-radius: 4px;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  cursor: pointer;
  background: var(--color-orange);
  color: #fff;
}

.btn:hover {
  background: var(--color-orange-dark);
}

.btn:disabled {
  background: #9ca3af;
  cursor: not-allowed;
}

.btn-secondary {
  background: #fff;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: #f9fafb;
}

.btn-danger {
  background: var(--color-danger);
}

.btn-danger:hover {
  background: var(--color-danger-dark);
}

.btn-small {
  padding: 0.3rem 0.6rem;
  font-size: 0.8rem;
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="month"],
select,
textarea {
  width: 100%;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 0.9rem;
  font-family: inherit;
}

label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.3rem;
  color: var(--color-muted);
}

.form-row {
  margin-bottom: 1rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.error-message {
  color: var(--color-danger);
  font-size: 0.85rem;
  margin: 0.5rem 0;
}

.info-message {
  color: var(--color-muted);
  font-size: 0.85rem;
  margin: 0.5rem 0;
}

.success-message {
  color: var(--color-accent-dark);
  font-size: 0.85rem;
  margin: 0.5rem 0;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  white-space: nowrap;
}

.badge-safe { background: #d9f5ee; color: var(--color-accent-dark); }
.badge-caution { background: #fef3c7; color: var(--color-caution); }
.badge-danger { background: #fee2e2; color: var(--color-danger); }
.badge-critical { background: #fecaca; color: var(--color-danger-dark); font-weight: 700; }
.badge-shortage { background: #450a0a; color: #fecaca; font-weight: 700; }

.badge-enabled { background: #d9f5ee; color: var(--color-accent-dark); }
.badge-disabled { background: #f3f4f6; color: #6b7280; }

.page-head { display: flex; align-items: center; gap: 0.4rem; }
.info-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.3rem; height: 1.3rem; border-radius: 50%; border: none;
  background: #eef1f5; color: var(--color-primary); font-size: 0.8rem; font-weight: 700;
  cursor: pointer; user-select: none; padding: 0;
}
.info-popover { display: none; margin: 0.5rem 0 1rem; padding: 0.75rem 1rem; background: #f8fafc; border: 1px solid var(--color-border); border-radius: 6px; }
.info-popover.open { display: block; }
.info-popover p.info-message { margin: 0.3rem 0; }

.actions {
  display: flex;
  gap: 0.4rem;
}

.dash-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.dash-card {
  display: block;
  background: #fff;
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
}

.dash-card h2 {
  margin: 0 0 0.6rem;
  font-size: 0.95rem;
  color: var(--color-muted);
  font-weight: 600;
}

.dash-stat {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
}

.dash-stat.stat-danger { color: var(--color-danger); }
.dash-stat.stat-ok { color: var(--color-accent-dark); }
.dash-stat.stat-highlight { color: var(--color-orange-dark); }

.dash-sub {
  margin: 0.35rem 0 0;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.auth-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-primary);
  border-radius: 8px;
  padding: 2rem;
  width: 100%;
  max-width: 360px;
}

.auth-card h1 {
  text-align: center;
  margin-bottom: 1.5rem;
}

.auth-links {
  text-align: center;
  margin-top: 1rem;
  font-size: 0.85rem;
}

.auth-links a {
  color: var(--color-primary);
}