:root {
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-border: #dfe3e8;
  --color-text: #1f2933;
  --color-muted: #6b7785;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-danger: #dc2626;
  --color-danger-bg: #fef2f2;
  --color-warn-bg: #fffbeb;
  --color-warn-border: #fde68a;
  --radius: 8px;
}

* { box-sizing: border-box; }

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

.page {
  max-width: 640px;
  margin: 40px auto;
  padding: 0 16px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
}

h1 { font-size: 1.4rem; margin: 0 0 8px; }
h2 { font-size: 1.1rem; margin: 0 0 16px; }
p.lead { color: var(--color-muted); margin-top: 0; }

label { display: block; font-weight: 600; margin: 16px 0 6px; font-size: 0.9rem; }
label:first-child { margin-top: 0; }

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
}

textarea { resize: vertical; }

.input-with-button { display: flex; gap: 8px; }
.input-with-button input { flex: 1; }

.radio-group { display: flex; gap: 16px; margin: 8px 0; }
.radio-group label { display: flex; align-items: center; gap: 6px; font-weight: 400; margin: 0; }

button, .btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
}

button.primary, .btn.primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
button.primary:hover, .btn.primary:hover { background: var(--color-primary-hover); }

button.danger { color: var(--color-danger); }

.actions { display: flex; gap: 12px; margin-top: 24px; }

.error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid #fecaca;
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.notice {
  background: var(--color-warn-bg);
  border: 1px solid var(--color-warn-border);
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 0.9rem;
  margin-top: 8px;
}

.block {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}
.block.email { background: #f8fafc; }
.block.password { background: #fffaf0; border-color: #fde68a; }

.kv { margin: 4px 0; font-size: 0.9rem; }
.kv .k { color: var(--color-muted); display: inline-block; width: 90px; }

pre.mail-body {
  white-space: pre-wrap;
  font-family: inherit;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 12px;
  font-size: 0.9rem;
}

.copy-field { display: flex; align-items: center; gap: 8px; }
.copy-field code {
  flex: 1;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 1rem;
  letter-spacing: 0.03em;
  word-break: break-all;
}

table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--color-border); vertical-align: top; }
th { color: var(--color-muted); font-weight: 600; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.75rem; }
.badge.active { background: #dcfce7; color: #166534; }
.badge.deleted { background: #f1f5f9; color: #64748b; }
.badge.locked { background: #fee2e2; color: #991b1b; }

.summary-row { display: flex; gap: 24px; margin-bottom: 8px; }
.summary-row .item { font-size: 0.9rem; }
.summary-row .item .num { font-size: 1.3rem; font-weight: 700; display: block; }

.topnav { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; font-size: 0.9rem; }
.topnav a { color: var(--color-muted); text-decoration: none; margin-left: 16px; }
.topnav a:hover { color: var(--color-text); }

.checkbox-row { display: flex; align-items: center; gap: 8px; margin-top: 16px; }
.checkbox-row input { width: auto; }