:root {
  --primary-color: #1b4965;
  --secondary-color: #5fa8d3;
  --accent-color: #ffb703;
  --bg-color: #f7f9fc;
  --text-color: #1f2933;
  --border-radius: 6px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

.site-header {
  background-color: var(--primary-color);
  color: #fff;
  padding: 0.75rem 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo img {
  height: 40px;
}

.logo-text {
  font-weight: 700;
  font-size: 2.1rem;
  color: #fff;
}

.main-nav a {
  color: #fff;
  margin-left: 1rem;
  text-decoration: none;
  font-size: 0.95rem;
}

.main-nav a:hover {
  text-decoration: underline;
}

.admin-link {
  font-weight: 600;
}

main {
  padding: 2rem 0;
}

h1, h2, h3 {
  color: var(--primary-color);
}

.hero {
  background-color: #ffffff;
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
  margin-bottom: 2rem;
  text-align: center;
}

.hero h1 {
  margin-bottom: 0.5rem;
}

.hero p {
  margin-bottom: 1rem;
}

.btn-primary {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border-radius: var(--border-radius);
  background-color: var(--secondary-color);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background-color: #457b9d;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
  margin-top: 2rem;
}

.card {
  background-color: #ffffff;
  padding: 1.2rem;
  border-radius: var(--border-radius);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.card h3 {
  margin-top: 0;
}

.site-footer {
  background-color: #0b1620;
  color: #c7d1e0;
  padding: 1.5rem 0;
  margin-top: 3rem;
  font-size: 0.9rem;
}

.site-footer a {
  color: #e5efff;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.two-column {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
}

@media (max-width: 768px) {
  .site-header .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .main-nav a {
    margin-left: 0;
    margin-right: 1rem;
  }
  .two-column {
    grid-template-columns: 1fr;
  }
}

/* Admin */

.admin-layout {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 2rem;
}

.admin-panel {
  background-color: #ffffff;
  padding: 1.2rem;
  border-radius: var(--border-radius);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.admin-panel h2 {
  margin-top: 0;
}

.admin-panel label {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.admin-panel input,
.admin-panel select,
.admin-panel textarea {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.2rem;
  border-radius: 4px;
  border: 1px solid #cbd2e1;
  font-size: 0.9rem;
}

.admin-panel textarea {
  min-height: 80px;
  resize: vertical;
}

.admin-panel button[type="submit"] {
  margin-top: 1rem;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.admin-table th,
.admin-table td {
  border: 1px solid #e1e7f0;
  padding: 0.4rem 0.5rem;
  text-align: left;
}

.admin-table th {
  background-color: #f1f4f9;
}

.admin-table button {
  font-size: 0.8rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  border: none;
  cursor: pointer;
}

.btn-edit {
  background-color: #e9c46a;
  color: #1f2933;
  margin-right: 0.25rem;
}

.btn-delete {
  background-color: #e63946;
  color: #fff;
}

.error {
  color: #b00020;
  font-weight: 500;
}