:root {
  --primary: #1b3a57;
  --accent: #1f8ef1;
  --bg: #f5f7fb;
  --text: #1f2933;
  --muted: #6b7280;
  --card: #ffffff;
  --error: #d93025;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', sans-serif;
}

body.admin-body {
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.admin-header {
  background: var(--card);
  padding: 20px 0;
  border-bottom: 1px solid #e6ebf2;
}

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

.admin-logo {
  font-weight: 700;
  color: var(--primary);
}

.admin-header nav a {
  margin-left: 16px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
}

.admin-main {
  padding: 40px 0 80px;
}

.cards {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 24px 0;
}

.card {
  background: var(--card);
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 8px 16px rgba(15, 23, 42, 0.06);
}

.card strong {
  display: block;
  font-size: 1.6rem;
  margin-top: 8px;
  color: var(--primary);
}

.panel {
  background: var(--card);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 8px 16px rgba(15, 23, 42, 0.06);
}

.panel header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

table th,
table td {
  padding: 12px;
  border-bottom: 1px solid #e6ebf2;
  text-align: left;
}

.link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.filters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin: 20px 0;
}

.filters input,
.filters select {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid #d7dde5;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 18px;
  font-weight: 600;
  cursor: pointer;
}

.pagination {
  margin-top: 20px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pagination a {
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid #d7dde5;
  text-decoration: none;
  color: var(--muted);
}

.pagination a.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.login-card {
  background: var(--card);
  padding: 32px;
  border-radius: 16px;
  width: min(380px, 100%);
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.1);
}

.login-card h1 {
  margin-bottom: 12px;
}

.login-card p {
  color: var(--muted);
  margin-bottom: 20px;
}

.login-card label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.login-card input {
  padding: 12px;
  border-radius: 8px;
  border: 1px solid #d7dde5;
}

.alert {
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 16px;
}

.alert-error {
  background: rgba(217, 48, 37, 0.1);
  color: var(--error);
}

.detail-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.detail-grid div {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.detail-grid strong {
  color: var(--primary);
}

.detail-grid .full {
  grid-column: 1 / -1;
}

@media (max-width: 768px) {
  .admin-header .container {
    flex-direction: column;
    gap: 12px;
  }
}