* { box-sizing: border-box; }

:root {
  --primary: #2f6fbb;
  --primary-dark: #1a4f8b;
  --bg: #f4f7fb;
  --card-bg: #ffffff;
  --border: #d9e3f0;
  --danger: #d1453b;
  --text: #263042;
}

body {
  margin: 0;
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
}

header.appbar {
  background: var(--primary);
  color: #fff;
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 10;
}

header.appbar a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}

header.appbar nav {
  display: flex;
  gap: 12px;
  font-size: 14px;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}

h1 { font-size: 20px; margin: 0 0 12px; }
h2 { font-size: 16px; margin: 0 0 10px; color: var(--primary-dark); }

label {
  display: block;
  font-size: 13px;
  font-weight: bold;
  margin: 10px 0 4px;
  color: #4a5568;
}

input[type="text"],
input[type="password"],
input[type="date"],
select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 16px;
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 24px;
  border: none;
  background: var(--primary);
  color: #fff;
  font-weight: bold;
  font-size: 15px;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}

.btn.secondary {
  background: #eef2f8;
  color: var(--primary-dark);
}

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

.btn.small {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.error {
  background: #fdeceb;
  color: var(--danger);
  border: 1px solid #f3b9b3;
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 12px;
  font-size: 14px;
}

.info {
  background: #eaf3ff;
  color: var(--primary-dark);
  border: 1px solid #c7defc;
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 12px;
  font-size: 14px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th, td {
  text-align: left;
  padding: 8px 6px;
  border-bottom: 1px solid var(--border);
}

.search-box {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.search-box input {
  flex: 1;
}

.customer-item {
  display: block;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 10px;
  text-decoration: none;
  color: var(--text);
  background: #fff;
}

.customer-item .name {
  font-weight: bold;
  font-size: 16px;
  color: var(--primary-dark);
}

.customer-item .meta {
  font-size: 13px;
  color: #6b7688;
  margin-top: 4px;
}

.tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  background: #eef2f8;
  font-size: 12px;
  color: var(--primary-dark);
  margin-right: 4px;
}

.tag.cancer {
  background: #fdeceb;
  color: var(--danger);
}

.joint-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
  align-items: center;
}

.joint-row input { flex: 1; }

.contract-block {
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 12px;
  margin-bottom: 12px;
  position: relative;
}

.contract-block .remove-contract {
  position: absolute;
  top: 8px;
  right: 8px;
}

.center { text-align: center; }
.muted { color: #8a95a8; font-size: 13px; }

.login-wrap {
  max-width: 360px;
  margin: 60px auto;
  padding: 0 16px;
}

.login-wrap h1 {
  text-align: center;
  color: var(--primary-dark);
}