/* Prototype 業務 UI 共通スタイル(third-party framework なし) */

:root {
  --color-bg: #f4f5f7;
  --color-surface: #ffffff;
  --color-border: #d9dce1;
  --color-text: #1f2733;
  --color-text-muted: #6b7280;
  --color-primary: #1d4ed8;
  --color-success-bg: #dcfce7;
  --color-success-text: #166534;
  --color-warning-bg: #fef3c7;
  --color-warning-text: #92400e;
  --color-danger-bg: #fee2e2;
  --color-danger-text: #991b1b;
  --color-neutral-bg: #e5e7eb;
  --color-neutral-text: #374151;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover, a:focus { text-decoration: underline; }

/* Header / layout */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.6rem 1.25rem;
  background: #111827;
  color: #f9fafb;
}
.site-title { font-weight: 700; }
.site-user { display: flex; align-items: center; gap: 0.75rem; }
.site-user-email { font-size: 0.85rem; color: #d1d5db; }
.logout-form { margin: 0; }

.layout { display: flex; min-height: calc(100vh - 3rem); }

.sidebar {
  width: 12rem;
  flex-shrink: 0;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  padding: 1rem 0;
}
.sidebar ul { list-style: none; margin: 0; padding: 0; }
.sidebar a {
  display: block;
  padding: 0.55rem 1.25rem;
  color: var(--color-text);
}
.sidebar a:hover, .sidebar a:focus {
  background: var(--color-bg);
  text-decoration: none;
}
.sidebar a.active {
  background: var(--color-bg);
  border-left: 3px solid var(--color-primary);
  padding-left: calc(1.25rem - 3px);
  font-weight: 600;
}

.main-content { flex: 1; padding: 1.5rem; min-width: 0; }

h1 { font-size: 1.4rem; margin: 0 0 1rem; }
h2 { font-size: 1.05rem; margin: 0 0 0.75rem; }

/* Card */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
}

/* KPI */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.kpi-card { margin-bottom: 0; }
.kpi-label { color: var(--color-text-muted); font-size: 0.85rem; }
.kpi-value { font-size: 2rem; font-weight: 700; }
.kpi-unit { font-size: 0.9rem; font-weight: 400; margin-left: 0.25rem; }

/* Table */
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
th, td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}
th { color: var(--color-text-muted); font-weight: 600; background: #fafbfc; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Badge(色だけに依存せず必ず text も表示する) */
.badge {
  display: inline-block;
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--color-neutral-bg);
  color: var(--color-neutral-text);
}
.badge-ACTIVE, .badge-CONFIRMED { background: var(--color-success-bg); color: var(--color-success-text); }
.badge-AWAITING_PAYMENT { background: var(--color-warning-bg); color: var(--color-warning-text); }
.badge-EXPIRED, .badge-CANCELLED { background: var(--color-danger-bg); color: var(--color-danger-text); }
.badge-DRAFT, .badge-INACTIVE, .badge-RELEASED, .badge-PENDING, .badge-CLOSED {
  background: var(--color-neutral-bg);
  color: var(--color-neutral-text);
}

/* Forms */
.search-form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.search-form input[type="text"] {
  min-width: 18rem;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
}
.form-row { margin-bottom: 0.9rem; }
.form-row label { display: block; font-size: 0.85rem; margin-bottom: 0.25rem; }
.form-row input,
.form-row select {
  width: 100%;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: #fff;
}
.page-actions { margin: 0 0 1rem; }
.login-card { max-width: 24rem; }

.btn {
  display: inline-block;
  padding: 0.45rem 1rem;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-secondary { background: transparent; color: #d1d5db; border-color: #4b5563; }
.btn-danger { background: #b91c1c; color: #fff; }
.btn-link { background: transparent; color: var(--color-primary); }

.form-row textarea {
  width: 100%;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: inherit;
}
.field-error { color: var(--color-danger-text); font-size: 0.85rem; margin: 0.25rem 0 0; }

/* Contract card / balance */
.contract-card {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  margin-bottom: 1rem;
}
.contract-card-header { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.balance-hero { margin: 0.5rem 0 0.25rem; }
.balance-current { font-size: 2.2rem; font-weight: 700; }
.balance-total { font-size: 1.1rem; color: var(--color-text-muted); }
.progress {
  height: 0.55rem;
  background: var(--color-neutral-bg);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.6rem;
}
.progress-bar { height: 100%; background: var(--color-primary); }

/* Info list */
.info-list {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 0.25rem 1rem;
  margin: 0;
}
.info-list dt { color: var(--color-text-muted); font-size: 0.85rem; }
.info-list dd { margin: 0; }

/* Ledger amounts(色 + 符号 text の併用) */
.amount-pos { color: var(--color-success-text); }
.amount-neg { color: var(--color-danger-text); }

.search-form select {
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
}

/* Misc */
.muted { color: var(--color-text-muted); font-size: 0.85rem; }
.empty-state { color: var(--color-text-muted); padding: 0.5rem 0; }
.messages { list-style: none; margin: 0 0 1rem; padding: 0; }
.message { padding: 0.6rem 0.9rem; border-radius: 6px; margin-bottom: 0.5rem; }
.message-error { background: var(--color-danger-bg); color: var(--color-danger-text); }
.message-success { background: var(--color-success-bg); color: var(--color-success-text); }
.message-warning { background: var(--color-warning-bg); color: var(--color-warning-text); }
.message-info { background: var(--color-neutral-bg); color: var(--color-neutral-text); }
.pagination { display: flex; gap: 0.75rem; align-items: center; margin-top: 0.75rem; }
.result-count { color: var(--color-text-muted); font-size: 0.85rem; margin: 0 0 0.5rem; }
.backlink { margin: 0 0 0.75rem; font-size: 0.9rem; }
.required-mark {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0 0.4rem;
  border-radius: 4px;
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
  font-size: 0.72rem;
  font-weight: 600;
}
.alert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.alert-grid .card { margin-bottom: 0; }
.alert-list { list-style: none; margin: 0; padding: 0; }
.alert-list li {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--color-border);
}
.alert-list li:last-child { border-bottom: none; }

/* Keyboard focus(indicator を消さない・明示する) */
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Table usability */
tbody tr:hover { background: #f8fafc; }
.error-page { max-width: 32rem; margin: 3rem auto; text-align: center; }
.error-page .error-code { font-size: 3rem; font-weight: 700; color: var(--color-text-muted); }

/* Responsive */
@media (max-width: 800px) {
  .layout { flex-direction: column; }
  .sidebar {
    width: auto;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 0;
  }
  .sidebar ul { display: flex; }
  .info-list { grid-template-columns: 6.5rem 1fr; }
}
/* Public demo banner (Step 18) */
.demo-banner {
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
  text-align: center;
  font-size: 0.85rem;
  padding: 0.35rem 0.75rem;
}