body {
  font-family: "Segoe UI", sans-serif;
  background: #f2f5f9;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
}

.container {
  background: #fff;
  padding: 2rem;
  border-radius: 12px;
  max-width: 450px;
  width: 90%;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

h1 {
  text-align: center;
  color: #0a1a2a;
}

.form-group {
  display: flex;
  flex-direction: column;
  margin-top: 1rem;
}

label {
  font-weight: 600;
  color: #0a1a2a;
}

input, textarea {
  padding: 0.7rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  outline: none;
}

button {
  margin-top: 1.2rem;
  width: 100%;
  padding: 0.8rem;
  border: none;
  background: #49bf9d;
  color: white;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  opacity: 0.9;
}

.nav-buttons {
  text-align: center;
  margin-top: 1.5rem;
}

.about-btn {
  background: #49bf9d;
  color: white;
  padding: 0.7rem 1.4rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  display: inline-block;
  transition: background 0.3s ease, transform 0.2s ease;
}

.about-btn:hover,
.about-btn:focus {
  background: #3aa081;
  transform: translateY(-2px);
}


.error {
  color: #d9534f;
  font-size: 0.8rem;
}

.success {
  color: #49bf9d;
  text-align: center;
  margin-top: 1rem;
  font-weight: bold;
}