/* ================= RESET ================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* ================= BODY (FULL SCREEN) ================= */
body {
  background: linear-gradient(135deg, #0d47a1, #1976d2);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: #333;
}

/* ================= CONTAINER (FULL SCREEN CARD) ================= */
.container {
  background: #ffffff;
  padding: 60px 70px;
  border-radius: 0;
  box-shadow: none;
  width: 100%;
  max-width: none;
  text-align: center;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* ================= HEADINGS ================= */
.container h1 {
  color: #0d47a1;
  margin-bottom: 15px;
  font-size: 36px;
  font-weight: bold;
}

.container h2 {
  color: #555;
  margin-bottom: 40px;
  font-size: 26px;
}

/* ================= FORM ================= */
form {
  max-width: 600px;
  margin: 0 auto;
}

/* ================= FORM INPUTS ================= */
form input {
  width: 100%;
  padding: 20px 22px;
  margin-bottom: 26px;
  border: 1px solid #ccc;
  border-radius: 14px;
  font-size: 20px;
  transition: all 0.3s ease;
}

form input:focus {
  border-color: #0d47a1;
  box-shadow: 0 0 6px rgba(13, 71, 161, 0.3);
  outline: none;
}

/* ================= BUTTON (BIG) ================= */
form button {
  width: 100%;
  padding: 22px;
  background-color: #0d47a1;
  color: #fff;
  font-size: 24px;
  font-weight: bold;
  border: none;
  border-radius: 16px;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.15s ease;
}

form button:hover {
  background-color: #06418f;
  transform: translateY(-2px);
}

/* ================= LINKS ================= */
.container p {
  margin-top: 30px;
  font-size: 18px;
  color: #555;
}

.container p a {
  color: #0d47a1;
  text-decoration: none;
  font-weight: bold;
}

.container p a:hover {
  text-decoration: underline;
}

/* ================= MESSAGE ================= */
#message {
  margin-top: 20px;
  font-size: 18px;
  color: red;
  min-height: 22px;
}

/* ================= TABLET ================= */
@media (max-width: 768px) {
  .container {
    padding: 45px 35px;
  }

  form {
    max-width: 100%;
  }
}

/* ================= MOBILE ================= */
@media (max-width: 480px) {
  body {
    padding: 0;
  }

  .container {
    padding: 40px 24px;
  }

  .container h1 {
    font-size: 32px;
  }

  .container h2 {
    font-size: 24px;
  }

  form input {
    font-size: 20px;
    padding: 20px;
  }

  form button {
    font-size: 22px;
    padding: 20px;
    border-radius: 14px;
  }

  .container p,
  .container p a,
  #message {
    font-size: 18px;
  }
}