body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #000;
  padding: 20px;
  color: #ffffff;
}

.container {
  max-width: 400px;
  margin: 60px auto;
  background: #545557;
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 0 20px rgba(0, 255, 150, 0.15);
  position: relative;
}

h1 {
  text-align: center;
  margin-top: 0px;
  font-size: 1.8em;
  margin-bottom: 30px;
  color: #fcfcfc;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="file"],
input[type="password"] {
  width: 93%;
  padding: 12px 15px;
  margin: 10px 0;
  border: none;
  border-radius: 10px;
  background-color: #353638;
  color: #fff;
  outline: none;
  font-size: 16px; /* ή μεγαλύτερο όπως 17px ή 18px */
}

input::placeholder {
  color: #bbb;
}

button[type="submit"] {
  width: 100%;
  padding: 14px;
  background-color: #007bff;
  color: #fafafa;
  font-weight: bold;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: 0.3s;
}

button[type="submit"]:hover {
  background-color: #007bff;
}

p {
  text-align: center;
  margin-top: 20px;
  margin-bottom: 1px;
}

p a {
  color: #007bff;
  text-decoration: none;
}

.social-icons {
  text-align: center;
  margin-top: 20px;
}

.social-icons i {
  font-size: 1.5rem;
  margin: 0 10px;
  cursor: pointer;
  color: #bbb;
  transition: 0.3s;
}

.social-icons i:hover {
  color: #00ff99;
}

.terms {
  margin-top: 20px;
  margin-bottom: 20px;
  font-size: 0.9em;
  color: #ccc;
}

.terms a {
  color: #65afff;
  text-decoration: underline;
  cursor: pointer;
}

@media (max-width: 450px) {
  .container {
    padding: 20px;
  }

  input[type="text"],
  input[type="email"],
  input[type="tel"],
  input[type="file"],
  input[type="password"] {
    width: 90%;
    margin: 10px auto;
    display: block;
  }

  button[type="submit"] {
    width: 90%;
    margin: 10px auto;
    display: block;
  }
}