* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header Styles */
header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 1rem 0;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

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

.logo-section {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo {
  height: 50px;
  width: auto;
}

header h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav a {
  color: white;
  text-decoration: none;
  transition: opacity 0.3s;
  font-weight: 500;
}

nav a:hover {
  opacity: 0.8;
}

/* Main Content */
main {
  flex: 1;
  padding: 2rem 0;
}

/* Footer Styles */
footer {
  background: #2c3e50;
  color: white;
  text-align: center;
  padding: 1rem 0;
  margin-top: auto;
}

/* Form Styles */
.form-container {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: #555;
}

input[type="text"],
input[type="date"],
input[type="tel"],
input[type="password"],
select,
textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
  transition: border-color 0.3s;
}

input[type="text"]:focus,
input[type="date"]:focus,
input[type="tel"]:focus,
input[type="password"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: #667eea;
}

/* Button Styles */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: #667eea;
  color: white;
  text-decoration: none;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.3s;
}

.btn:hover {
  background: #5a67d8;
}

.btn-danger {
  background: #e53e3e;
}

.btn-danger:hover {
  background: #c53030;
}

.btn-secondary {
  background: #718096;
}

.btn-secondary:hover {
  background: #4a5568;
}

/* Table Styles */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

th,
td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid #e2e8f0;
}

th {
  background: #f7fafc;
  font-weight: 600;
}

tr:hover {
  background: #f7fafc;
}

/* Card Styles */
.card {
  background: white;
  border-radius: 8px;
  padding: 2rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  margin-bottom: 2rem;
}

.card h2 {
  margin-bottom: 1.5rem;
  color: #2d3748;
}

/* Detail View Styles */
.detail-section {
  margin-bottom: 2rem;
}

.detail-section h3 {
  margin-bottom: 1rem;
  color: #4a5568;
}

.detail-item {
  display: flex;
  margin-bottom: 0.75rem;
}

.detail-label {
  font-weight: 600;
  color: #718096;
  width: 150px;
}

.detail-value {
  flex: 1;
  color: #2d3748;
}

/* Action Buttons */
.action-buttons {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }

  nav ul {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  table {
    font-size: 0.875rem;
  }

  th,
  td {
    padding: 0.5rem;
  }

  .action-buttons {
    flex-direction: column;
  }
}

/* Home Page Styles */
.home-hero {
  text-align: center;
  padding: 3rem 0;
}

.home-hero h1 {
  font-size: 2.5rem;
  color: #2d3748;
  margin-bottom: 1rem;
}

.home-hero p {
  font-size: 1.25rem;
  color: #4a5568;
  margin-bottom: 2rem;
}

.home-image {
  max-width: 600px;
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 2rem auto;
}

/* Alert Messages */
.alert {
  padding: 1rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}

.alert-success {
  background: #c6f6d5;
  color: #22543d;
  border: 1px solid #9ae6b4;
}

.alert-error {
  background: #fed7d7;
  color: #742a2a;
  border: 1px solid #fc8181;
}