:root {
  --bg-page: #a6b3cb;
  --link: #fbde3b;
  --link-hover: #f8e966;
  --accent-green: #7fb141;
  --bg-main: #003366;
  --text-main: #fff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Verdana, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: #6f6f6f;
  background: var(--bg-page);
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

.site-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem;
}

.site-header {
  background: linear-gradient(135deg, #0a4d6e 0%, #0d7a9e 50%, #0891b2 100%);
  color: var(--text-main);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.site-header h1 {
  margin: 0.25rem 0 0;
  font-size: 1.75rem;
}

.site-header p {
  margin: 0.35rem 0 0;
  opacity: 0.9;
}

main {
  background: var(--bg-main);
  color: var(--text-main);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

main h2 {
  margin-top: 0;
  color: var(--text-main);
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 600;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group select,
.form-group input[type="date"] {
  width: 100%;
  max-width: 100%;
  padding: 0.45rem 0.55rem;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: rgba(0, 0, 0, 0.15);
  color: #fff;
}

.form-group input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.form-group .radio-group,
.form-group .checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.form-group .radio-group label,
.form-group .checkbox-group label {
  display: inline;
  font-weight: normal;
}

.form-required {
  color: var(--link);
}

.form-message {
  padding: 0.75rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}

.form-message.success {
  background: rgba(127, 177, 65, 0.3);
  border: 1px solid var(--accent-green);
}

.form-message.error {
  background: rgba(200, 60, 60, 0.3);
  border: 1px solid #c44;
}

.duplicate-check {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 0.9rem;
  margin-bottom: 1.2rem;
}

.duplicate-check h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.duplicate-check button,
.form-submit button {
  background: var(--link);
  color: #003366;
  border: none;
  padding: 0.6rem 1.25rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 6px;
  cursor: pointer;
}

.duplicate-check button:hover,
.form-submit button:hover {
  background: var(--link-hover);
}

.duplicate-check button:disabled,
.form-submit button:disabled {
  opacity: 0.7;
  cursor: wait;
}

.duplicate-check-result {
  margin-top: 0.6rem;
  padding: 0.6rem;
  border-radius: 4px;
}

.duplicate-check-result.success {
  background: rgba(127, 177, 65, 0.25);
  border: 1px solid var(--accent-green);
}

.duplicate-check-result.error {
  background: rgba(200, 60, 60, 0.25);
  border: 1px solid #c44;
}

.form-submit {
  margin-top: 1.25rem;
}

.site-footer {
  margin-top: 1.25rem;
  text-align: center;
  font-size: 0.9rem;
  color: #555;
}