:root {
  --primary: #2383AC;
  --primary-dark: #1b6a8a;
  --gray: #6D6E71;
  --light-gray: #f2f4f5;
  --border: #dde3e6;
  --danger: #c0392b;
  --success: #2e8b57;
  --white: #ffffff;
}

* { box-sizing: border-box; }

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: var(--light-gray);
  color: #2b2b2b;
  margin: 0;
}

.navbar {
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 24px;
}

.navbar .brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.navbar img {
  height: 40px;
}

.navbar a {
  color: #fff;
  text-decoration: none;
  margin-left: 18px;
  font-weight: 500;
}

.navbar a:hover { text-decoration: underline; }

.container {
  max-width: 1000px;
  margin: 30px auto;
  padding: 0 16px;
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.card h2, .card h3 { margin-top: 0; color: var(--primary-dark); }

.stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.stat-box {
  flex: 1;
  min-width: 150px;
  background: var(--white);
  border: 1px solid var(--border);
  border-left: 5px solid var(--primary);
  border-radius: 8px;
  padding: 16px;
}

.stat-box .label { color: var(--gray); font-size: 13px; text-transform: uppercase; }
.stat-box .value { font-size: 24px; font-weight: 700; color: var(--primary-dark); }

table { width: 100%; border-collapse: collapse; margin-top: 10px; }
th, td { text-align: left; padding: 10px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--gray); text-transform: uppercase; font-size: 12px; }

.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  text-decoration: none;
}
.btn:hover { background: var(--primary-dark); }
.btn.secondary { background: var(--gray); }
.btn.danger { background: var(--danger); }

input, select, textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 12px;
  font-size: 14px;
}

label { font-weight: 600; font-size: 13px; color: var(--gray); }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
}
.badge.unpaid { background: var(--danger); }
.badge.paid, .badge.reserve, .badge.direct { background: var(--success); }

.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-box {
  background: #fff;
  padding: 40px;
  border-radius: 12px;
  width: 360px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  text-align: center;
}

.login-box img { height: 60px; margin-bottom: 16px; }

.error { background: #fdecea; color: var(--danger); padding: 10px; border-radius: 6px; margin-bottom: 14px; font-size: 14px; }
.success { background: #eaf7ef; color: var(--success); padding: 10px; border-radius: 6px; margin-bottom: 14px; font-size: 14px; }

.flex-between { display: flex; justify-content: space-between; align-items: center; }

@media print {
  .navbar, .no-print { display: none !important; }
}