:root {
  --color-primary: #2f6fed;
  --color-primary-dark: #1e4fbb;
  --color-bg: #f5f7fb;
  --color-card: #ffffff;
  --color-text: #222;
  --color-muted: #777;
  --color-border: #e2e6ee;
  --color-danger: #e0453b;
  --color-success: #2e9e5b;
  --radius: 10px;
}

* { box-sizing: border-box; }

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

a { color: var(--color-primary); text-decoration: none; }

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 16px;
}

.tabs { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.tabs a {
  padding: 8px 14px;
  border-radius: 20px;
  background: #fff;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 0.85rem;
}
.tabs a.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.btn.small { width: auto; padding: 8px 14px; font-size: 0.85rem; display: inline-block; }
.btn.danger { background: var(--color-danger); }
.btn.danger:hover { background: #b8342c; }

.inline-form { display: inline; }
.filter-bar { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; align-items: end; }
.filter-bar .form-group { margin-bottom: 0; min-width: 160px; }

header.site-header {
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

header.site-header .logo {
  font-weight: bold;
  font-size: 1.05rem;
  color: var(--color-primary-dark);
}

.card {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

h1, h2, h3 { color: var(--color-primary-dark); }
h1 { font-size: 1.3rem; }
h2 { font-size: 1.1rem; }

.form-group { margin-bottom: 16px; }

label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}

input[type=text], input[type=email], input[type=password], input[type=number],
select, textarea {
  width: 100%;
  padding: 12px;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: #fff;
}

textarea { min-height: 90px; resize: vertical; }

.checkbox-group label {
  font-weight: normal;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-right: 12px;
  margin-bottom: 8px;
}

.btn {
  display: inline-block;
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  background: var(--color-primary);
  color: #fff;
  cursor: pointer;
  text-align: center;
}
.btn:hover { background: var(--color-primary-dark); }
.btn.secondary { background: #fff; color: var(--color-primary); border: 1px solid var(--color-primary); }

.msg {
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.msg.error { background: #fdecea; color: var(--color-danger); }
.msg.success { background: #e8f7ee; color: var(--color-success); }

.muted { color: var(--color-muted); font-size: 0.85rem; }

.bell-link {
  position: relative;
  font-size: 1.3rem;
}
.bell-badge {
  position: absolute;
  top: -6px;
  right: -10px;
  background: var(--color-danger);
  color: #fff;
  font-size: 0.65rem;
  padding: 1px 5px;
  border-radius: 10px;
}

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { padding: 8px; border-bottom: 1px solid var(--color-border); text-align: left; }

.status-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  color: #fff;
}
.status-1 { background:#999; }      /* 依頼中 */
.status-2 { background:#2f6fed; }   /* 採点中 */
.status-3 { background:#2e9e5b; }   /* 採点終了 */
.status-4 { background:#e0453b; }   /* 依頼却下 */
.status-5 { background:#b8860b; }   /* 停止中 */
.status-6 { background:#a04fd6; }   /* 問い合わせ中 */