:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --bg: #f1f5f9;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #0ea5e9;
  --warn: #f59e0b;
  --danger: #dc2626;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Apple SD Gothic Neo', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
}

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

/* 상단 네비 */
.nav {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 4px;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav .brand { font-weight: 700; margin-right: 16px; color: var(--primary); white-space: nowrap; }
.nav a {
  padding: 8px 12px; border-radius: 8px; color: var(--muted); font-weight: 500;
}
.nav a:hover { background: var(--bg); color: var(--text); }
.nav a.active { color: var(--primary); background: #eff6ff; }
.nav .spacer { flex: 1; }
.nav .user { color: var(--muted); font-size: 13px; }
.nav button.link { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 13px; }

/* 레이아웃 */
.container { max-width: 1080px; margin: 24px auto; padding: 0 20px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 20px; margin-bottom: 16px;
}
h1 { font-size: 22px; margin: 0 0 16px; }
h2 { font-size: 17px; margin: 0 0 12px; }

/* 폼 */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; }
.field { display: flex; flex-direction: column; gap: 4px; }
.field.full { grid-column: 1 / -1; }
label { font-size: 13px; color: var(--muted); font-weight: 500; }
input, select, textarea {
  padding: 9px 11px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; font-family: inherit; background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid #bfdbfe; border-color: var(--primary); }

button.btn {
  background: var(--primary); color: #fff; border: none; padding: 10px 18px;
  border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer;
}
button.btn:hover { background: var(--primary-dark); }
button.btn.secondary { background: #fff; color: var(--text); border: 1px solid var(--border); }

/* 표 */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 13px; background: #f8fafc; }
tr:hover td { background: #f8fafc; }

/* 배지 / 메타 */
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600;
}
.badge.individual { background: #eff6ff; color: var(--primary); }
.badge.corporate  { background: #f0fdf4; color: #15803d; }
.muted { color: var(--muted); }
.notice {
  background: #fffbeb; border: 1px solid #fde68a; color: #92400e;
  padding: 10px 14px; border-radius: 8px; font-size: 13px; margin-bottom: 16px;
}
.stat { display: flex; gap: 24px; flex-wrap: wrap; }
.stat .item { }
.stat .item .v { font-size: 20px; font-weight: 700; }
.stat .item .l { font-size: 12px; color: var(--muted); }

/* 로그인 */
.login-wrap { max-width: 380px; margin: 80px auto; }
.login-wrap .card { text-align: center; }
.login-wrap h1 { font-size: 20px; }
.login-wrap .field { text-align: left; }

@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
  .nav { overflow-x: auto; }
}