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

html,
body {
  height: 100%;
}

body {
  font-family: Arial, sans-serif;
  background-color: #000;
  color: #fff;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow-x: hidden;
}

.content-wrapper {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 50px 20px;
}

.login-container {
  background-color: #111;
  padding: 30px 40px;
  border-radius: 8px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
  text-align: left;
}

.login-container img {
  display: block;
  max-width: 50px;
  margin: 0 auto 20px;
}

.login-container h1 {
  font-size: 26px;
  margin-bottom: 30px;
  font-weight: bold;
  text-align: center;
}

.login-container label {
  font-size: 14px;
  display: block;
  margin-bottom: 5px;
  color: #ccc;
}

.login-container input {
  width: 100%;
  padding: 12px 15px;
  margin-bottom: 20px;
  border: 1px solid #333;
  border-radius: 5px;
  background-color: #222;
  color: #fff;
  font-size: 14px;
}

.login-container input::placeholder {
  color: #555;
}

.login-container a {
  text-decoration: none;
  color: #00ffcc;
  font-size: 14px;
  transition: color 0.3s ease;
}

.login-container a:hover {
  color: #00e6b3;
}

.login-container .btn {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  border: none;
  border-radius: 5px;
  background-color: #00ffcc;
  color: #000;
  cursor: pointer;
  margin-bottom: 20px;
  transition: background-color 0.3s ease;
}

.login-container .btn:hover {
  background-color: #00e6b3;
}

.login-footer {
  margin-top: 20px;
  font-size: 14px;
  text-align: center;
}

.password-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 5px;
}

.password-label label {
  margin: 0;
}

.refresh-captcha {
  background-color: #00ffcc;
  color: #000;
  border: none;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 14px;
  border-radius: 4px;
  transition: background-color 0.3s ease;
}

.custom-captcha {
  display: flex;
  flex-direction: column;
  width: 100%;
  gap: 0.75rem;
}

.captcha-image-wrapper {
  display: flex;
  align-items: center;
}

.captcha-image-wrapper img {
  max-width: 180px;
  height: auto;
  border: 1px solid #333;
  background: #222;
  padding: 4px;
}

.captcha-image-wrapper .refresh-captcha {
  margin-left: 10px;
}

.custom-captcha input[name="captcha"] {
  width: 100%;
  padding: 12px;
  font-size: 14px;
  border: 1px solid #333;
  border-radius: 4px;
  background: #222;
  color: #fff;
}

.refresh-captcha:hover {
  background-color: #00e6b3;
}

.captcha-group {
  margin: 1.5rem 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  grid-gap: 1rem;
}

.captcha-group > div {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.or-divider {
  display: flex;
  align-items: center;
  text-align: center;
  max-width: 360px;
  margin: 0.5rem auto 1rem;
}

.or-divider::before,
.or-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: #555;
}

.or-divider span {
  padding: 0 0.5rem;
  color: #888;
}

.social-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 360px;
  margin: 0 auto 1rem;
}

.btn-social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.75rem;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  text-decoration: none;
  color: #fff;
  transition: background 0.2s ease;
}

.btn-facebook {
  background: #3b5998;
}

.btn-facebook:hover {
  background: #2d4373;
}

.btn-google {
  background: #db4437;
}

.btn-google:hover {
  background: #c33d2f;
}

.btn-social i {
  margin-right: 0.5rem;
  font-size: 1.1rem;
}

.social-buttons:empty {
  display: none;
}

.social-buttons:empty + .or-divider {
  display: none;
}

.alert {
  border-radius: 6px;
  padding: 12px 16px;
  margin: 15px 0;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid transparent;
  box-shadow: 0 0 8px rgba(0, 255, 170, 0.3);
}

.alert i {
  font-size: 1.2em;
}

.alert.success {
  color: #00ffcc;
  background-color: rgba(0, 64, 64, 0.7);
  border-color: #00ffcc;
}

.alert.error {
  color: #ff4d4d;
  background-color: rgba(64, 0, 0, 0.7);
  border-color: #ff4d4d;
}

.alert.warning {
  color: #ffc107;
  background-color: rgba(64, 32, 0, 0.7);
  border-color: #ffc107;
}

.alert.info {
  color: #00cfff;
  background-color: rgba(0, 32, 64, 0.7);
  border-color: #00cfff;
}

.btn-social {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  text-decoration: none;
  font-size: 1rem;
  margin: 0 5px;
}

@media (max-width: 768px) {
  .content-wrapper {
    padding: 30px 10px;
  }

  .login-container {
    width: 100%;
    max-width: none;
    padding: 20px;
    margin: 0 10px;
  }

  .login-container img {
    max-width: 40px;
    margin-bottom: 15px;
  }

  .login-container h1 {
    font-size: 22px;
    margin-bottom: 20px;
  }

  .login-container label {
    font-size: 13px;
  }

  .login-container input {
    padding: 10px 12px;
    font-size: 16px;
    margin-bottom: 16px;
  }

  .login-container .btn {
    padding: 12px;
    font-size: 16px;
    margin-bottom: 16px;
  }

  .login-container a {
    font-size: 13px;
  }

  .captcha-image-wrapper {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .captcha-image-wrapper img {
    max-width: 100%;
  }

  .captcha-image-wrapper .refresh-captcha {
    margin-left: 0;
    align-self: flex-end;
    padding: 6px 10px;
    font-size: 13px;
  }

  .custom-captcha input[name="captcha"] {
    padding: 10px;
    font-size: 15px;
  }

  .captcha-group {
    grid-template-columns: 1fr;
    grid-gap: 0.5rem;
  }

  .social-buttons {
    gap: 0.5rem;
    max-width: 100%;
  }

  .btn-social {
    padding: 0.65rem;
    font-size: 0.95rem;
  }

  .btn-social i {
    font-size: 1rem;
    margin-right: 0.4rem;
  }

  .or-divider {
    max-width: 100%;
    margin: 0.5rem auto 1rem;
  }

  .alert {
    flex-direction: column;
    text-align: center;
    gap: 6px;
  }

  .alert i {
    margin: 0;
    font-size: 1.3em;
  }
}

@media (max-width: 767px) {
  .content-wrapper {
    padding: 20px 8px;
  }

  .login-container {
    padding: 16px;
  }

  .login-container h1 {
    font-size: 20px;
  }

  .login-container input,
  .login-container .btn {
    font-size: 15px;
    padding: 10px;
  }

  .refresh-captcha {
    padding: 5px 8px;
    font-size: 12px;
  }

  .social-buttons {
    gap: 0.4rem;
  }

  .or-divider span {
    padding: 0 0.4rem;
  }
}