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

:root {
  --blue:       #0077cc;
  --blue-dark:  #005fa3;
  --orange:     #ff6600;
  --bg:         #f0f4f8;
  --white:      #ffffff;
  --text:       #333333;
  --gray:       #888888;
  --border:     #cccccc;
}

body {
  font-family: 'Roboto', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: #0077cc;
  color: white;
}

.navbar-items {
  list-style: none;
  display: flex;
  gap: 1rem;
}

.navbar-items a {
  color: white;
  text-decoration: none;
  font-weight: 600;
}

.navbar-items a:hover {
  color: #ffcc00;
}



main {
  max-width: 580px;
  margin: 48px auto;
  padding: 0 16px;
}

h1 {
  font-family: 'Poppins', sans-serif;
  font-size: 2rem;
  color: var(--blue);
  margin-bottom: 8px;
}

.subtitle {
  color: var(--gray);
  margin-bottom: 28px;
  font-size: 0.95rem;
}

form {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

fieldset {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}

legend {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--blue);
  padding: 0 8px;
}

label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-top: 14px;
  margin-bottom: 6px;
}

fieldset label:first-of-type {
  margin-top: 0;
}

input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: 'Roboto', sans-serif;
  font-size: 0.95rem;
  color: var(--text);
  background-color: var(--white);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(0, 119, 204, 0.15);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.checkbox-fieldset {
  margin-bottom: 24px;
}

.checkbox-label {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  margin-bottom: 0;
  font-weight: 400;
  cursor: pointer;
}

input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--blue);
  cursor: pointer;
}

.checkbox-label span {
  font-size: 0.9rem;
}

button[type="submit"] {
  display: block;
  width: 100%;
  padding: 13px;
  background-color: var(--blue);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

button[type="submit"]:hover {
  background-color: var(--blue-dark);
}

button[type="submit"]:active {
  background-color: var(--orange);
}

footer {
  text-align: center;
  padding: 24px;
  color: var(--gray);
  font-size: 0.875rem;
}

@media (max-width: 600px) {
  header {
    flex-direction: column;
    gap: 12px;
    padding: 16px;
  }

  nav ul {
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
  }

  main {
    margin: 28px auto;
  }

  h1 {
    font-size: 1.6rem;
  }

  form {
    padding: 20px 16px;
  }
}