:root {
  --navy: #1b3a5c;
  --navy-dark: #142c46;
  --accent: #2f80ed;
  --danger: #d9534f;
  --border: #dfe3e8;
  --bg: #f5f7fa;
  --text: #1f2933;
  --muted: #6b7684;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 24px;
  flex-wrap: wrap;
}

.brand {
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  font-size: 1.1rem;
  white-space: nowrap;
}

.nav-search {
  flex: 1;
  display: flex;
  gap: 6px;
  max-width: 420px;
}

.nav-search input {
  flex: 1;
  padding: 6px 10px;
  border-radius: 4px;
  border: none;
}

.nav-search button {
  padding: 6px 12px;
  border: none;
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

.topbar nav {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}

.topbar nav a {
  color: #cfe0f5;
  text-decoration: none;
  font-size: 0.9rem;
}

.topbar nav a:hover { color: #fff; }

.who { font-size: 0.85rem; color: #b8cbe0; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

h1 { margin-top: 0; }
.muted { color: var(--muted); }

.flashes { margin-bottom: 16px; }
.flash {
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 8px;
  font-size: 0.9rem;
}
.flash-success { background: #e5f6e8; color: #256b32; border: 1px solid #b8e3bf; }
.flash-error { background: #fdeceb; color: #a3312a; border: 1px solid #f3c2be; }

.login-box {
  max-width: 380px;
  margin: 60px auto;
  background: #fff;
  padding: 28px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.login-box form { display: flex; flex-direction: column; gap: 6px; }
.login-box label { font-size: 0.85rem; margin-top: 8px; color: var(--muted); }
.login-box input {
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 5px;
}
.login-box button {
  margin-top: 16px;
  padding: 10px;
  border: none;
  border-radius: 5px;
  background: var(--navy);
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}

.unit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.unit-card {
  display: block;
  background: #fff;
  border: 1px solid var(--border);
  border-left: 5px solid var(--accent);
  border-radius: 6px;
  padding: 16px;
  text-decoration: none;
  color: var(--text);
  transition: box-shadow .15s;
}
.unit-card:hover { box-shadow: 0 2px 10px rgba(0,0,0,0.08); }
.unit-name { font-weight: 700; font-size: 1.05rem; }
.unit-count { color: var(--muted); font-size: 0.85rem; margin-top: 4px; }

.page-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}

.inline-search {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}
.inline-search input {
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 5px;
  width: 260px;
}

.contact-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.contact-table th, .contact-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}
.contact-table th {
  background: var(--navy);
  color: #fff;
  font-weight: 600;
}
.contact-table tbody tr:hover { background: #f0f4f8; }
.contact-table a { color: var(--accent); text-decoration: none; }
.contact-table a:hover { text-decoration: underline; }

.actions { display: flex; gap: 6px; }
.inline-form { display: inline; }

.btn {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  text-decoration: none;
  font-size: 0.88rem;
  cursor: pointer;
}
.btn:hover { background: #f0f4f8; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: #2569c6; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { background: #c9433e; }
.btn-small { padding: 4px 9px; font-size: 0.8rem; }

.form-box {
  max-width: 480px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 22px;
  display: flex;
  flex-direction: column;
}
.form-box label { font-size: 0.85rem; color: var(--muted); margin-top: 10px; }
.form-box input, .form-box select {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 5px;
  margin-top: 4px;
}
.checkbox-label { display: flex; align-items: center; gap: 8px; }
.checkbox-label input { margin-top: 0; }
.form-actions { margin-top: 20px; display: flex; gap: 10px; }