:root {
  --primary-color: #2c3e50;
  --secondary-color: #eb2129;
  --success-color: #27ae60;
  --danger-color: #e74c3c;
  --warning-color: #f39c12;
  --light-bg: #ecf0f1;
  --dark-text: #2c3e50;
  --white: #ffffff;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--light-bg);
  color: var(--dark-text);
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background-color: var(--white);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
}

nav a {
  margin-left: 1.5rem;
  text-decoration: none;
  color: var(--secondary-color);
  font-weight: 500;
}

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

main {
  flex: 1;
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 80%;
}

.card {
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  padding: 2rem;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  border-radius: 5px;
  text-decoration: none;
  color: var(--white);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.3s;
}

.btn-primary {
  background-color: var(--secondary-color);
}

.btn-primary:hover {
  background-color: #2980b9;
}

.btn-success {
  background-color: var(--success-color);
}

.btn-danger {
  background-color: var(--danger-color);
}

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

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
select {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}

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

.alert-error {
  background-color: #fadbd8;
  color: var(--danger-color);
}

.alert-success {
  background-color: #d4efdf;
  color: var(--success-color);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

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

th {
  background-color: #f8f9fa;
}

.badge {
  padding: 0.25rem 0.6rem;
  border-radius: 12px;
  font-size: 0.85rem;
  color: white;
}

.badge-verified {
  background-color: var(--success-color);
}

.badge-failed {
  background-color: var(--danger-color);
}

.badge-pending {
  background-color: var(--warning-color);
}

@media (max-width: 768px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }

  header {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    text-align: center;
  }

  nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
    align-items: center;
  }

  nav span {
    margin-bottom: 0.5rem;
    display: block;
  }

  nav a {
    margin-left: 0;
    margin: 0.25rem 0;
    display: block;
  }
}

.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-responsive td,
.table-responsive th {
  white-space: nowrap;
}

/* API Result Card Design */
.api-result-container {
  background-color: #f8f9fa;
  border-radius: 8px;
  padding: 1.5rem;
  margin-top: 1.5rem;
  border: 1px solid #e9ecef;
  text-align: left;
}

.api-result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.5rem;
}

.api-result-item {
  display: flex;
  flex-direction: column;
}

.api-label {
  font-size: 0.85rem;
  color: #6c757d;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.25rem;
  font-weight: 600;
}

.api-value {
  font-size: 1.1rem;
  color: var(--primary-color);
  font-weight: 500;
  word-break: break-word;
}

.api-full-width {
  grid-column: 1 / -1;
}

.api-value.valid {
  color: var(--success-color);
}

.api-value.invalid {
  color: var(--danger-color);
}