/* =========
   基本設定
   ========= */

:root {
  --bg: #f5f6fa;
  --card: #ffffff;
  --text: #1f2a37;
  --muted: #6b7280;
  --border: #e5e7eb;
  --primary: #6d28d9;
  --primary-weak: #ede9fe;
  --danger: #dc2626;
  --danger-weak: #fee2e2;
  --success: #059669;
  --success-weak: #d1fae5;
  --shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
  --radius: 14px;
  --radius-sm: 10px;
  --gap: 14px;
  --max: 980px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

/* =========
   レイアウト（★中央寄せ修正版）
   ========= */

body {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  background: radial-gradient(1000px 500px at 10% 0%, #eef2ff, transparent),
    radial-gradient(900px 450px at 90% 10%, #ecfeff, transparent),
    var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica,
    Arial, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.5;
}

.container {
  width: 100%;
  max-width: var(--max);
  padding: 22px 16px 80px;
}

/* =========
   ヘッダー
   ========= */

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  padding: 14px 0 18px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.brand h1 {
  font-size: 20px;
  letter-spacing: 0.2px;
  margin: 0;
}

.badge {
  font-size: 12px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 999px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* =========
   カード
   ========= */

.card {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
  padding: 18px;
}

.card + .card {
  margin-top: 18px;
}

.card-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  margin-bottom: 12px;
}

.card-title h2 {
  margin: 0;
  font-size: 16px;
}

.help {
  color: var(--muted);
  font-size: 13px;
}

/* =========
   フォーム
   ========= */

.grid {
  display: grid;
  gap: 12px;
}

.grid.cols-2 {
  grid-template-columns: 1fr 1fr;
}

@media (max-width: 700px) {
  .grid.cols-2 {
    grid-template-columns: 1fr;
  }
}

label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="month"],
select {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.95);
  color: var(--text);
  outline: none;
}

input:focus,
select:focus {
  border-color: rgba(109, 40, 217, 0.6);
  box-shadow: 0 0 0 4px rgba(109, 40, 217, 0.15);
}

.row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
  margin-top: 12px;
}

/* =========
   ボタン
   ========= */

button,
a.btn {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  padding: 9px 14px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 13px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

button.primary,
a.btn.primary {
  background: var(--primary);
  border-color: rgba(109, 40, 217, 0.85);
  color: #fff;
}

button.primary:hover,
a.btn.primary:hover {
  filter: brightness(0.95);
}

button.danger,
a.btn.danger {
  background: var(--danger);
  border-color: rgba(220, 38, 38, 0.85);
  color: #fff;
}

button.ghost {
  background: transparent;
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* =========
   テーブル
   ========= */

table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
  overflow: hidden;
}

th,
td {
  padding: 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 13px;
  vertical-align: middle;
}

th {
  color: var(--muted);
  font-weight: 600;
  background: rgba(249, 250, 251, 0.95);
}

tr:last-child td {
  border-bottom: none;
}

td.mono {
  font-family: var(--mono);
  font-size: 12px;
  color: #334155;
}

td.right {
  text-align: right;
}

.small {
  font-size: 12px;
  color: var(--muted);
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  font-size: 12px;
  color: #334155;
}

/* =========
   メッセージ
   ========= */

.toast {
  display: none;
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 13px;
}

.toast.show {
  display: block;
}

.toast.success {
  border-color: rgba(5, 150, 105, 0.35);
  background: rgba(209, 250, 229, 0.6);
}

.toast.error {
  border-color: rgba(220, 38, 38, 0.35);
  background: rgba(254, 226, 226, 0.6);
}

hr.sep {
  border: none;
  border-top: 1px solid var(--border);
  margin: 16px 0;
}

/* =========
   フッター
   ========= */

.footer {
  margin-top: 24px;
  color: var(--muted);
  font-size: 12px;
}