body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #333;
  position: relative;
  overflow: hidden;
}


body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><path d="M20 20h20v60H20zM60 20h20v60H60z" fill="%23ffffff" fill-opacity="0.1"/></svg>') repeat;
  opacity: 0.2;
  z-index: 0;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  padding: 20px;
  z-index: 1;
}

.login-card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  width: 100%;
  max-width: 450px;
  text-align: center;
}

.login-card h1 {
  color: #ff6b6b;
  margin-bottom: 0.5rem;
  font-size: 2.2rem;
  font-weight: 600;
}

.login-card h2 {
  color: #4ecdc4;
  margin-bottom: 0.5rem;
  font-size: 1.8rem;
  font-weight: 600;
}

.login-card p {
  color: #555;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  color: #333;
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-wrapper i {
  position: absolute;
  left: 12px;
  color: #ff6b6b;
  font-size: 1rem;
}

.form-group input {
  width: 100%;
  padding: 0.8rem 0.8rem 0.8rem 2.5rem;
  border: none;
  border-bottom: 2px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
  background: #f9f9f9;
  transition: border-bottom-color 0.3s ease, box-shadow 0.3s ease;
  box-sizing: border-box;
}

.form-group input:focus {
  outline: none;
  border-bottom-color: #ff6b6b;
  box-shadow: 0 2px 4px rgba(255, 107, 107, 0.2);
}

.btn {
  width: 100%;
  padding: 0.9rem;
  background: #ff6b6b;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
}

.btn:hover {
  background: #e55a5a;
  transform: translateY(-2px);
}

.signup-link {
  margin-top: 1.2rem;
  font-size: 0.9rem;
}

.signup-link a {
  color: #ff6b6b;
  text-decoration: none;
  font-weight: 600;
}

.signup-link a:hover {
  text-decoration: underline;
}

.message {
  margin-top: 1rem;
  font-size: 0.9rem;
}

.message.success {
  color: #4ecdc4;
}

.message.error {
  color: #ff6b6b;
}


@media (max-width: 768px) {
  .login-card {
    padding: 1.5rem;
    max-width: 90%;
  }

  .login-card h1 {
    font-size: 2rem;
  }

  .login-card h2 {
    font-size: 1.6rem;
  }

  .form-group input {
    padding: 0.7rem 0.7rem 0.7rem 2.5rem;
    font-size: 0.95rem;
  }

  .btn {
    padding: 0.8rem;
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  .login-card {
    padding: 1rem;
  }

  .login-card h1 {
    font-size: 1.8rem;
  }

  .login-card h2 {
    font-size: 1.4rem;
  }

  .form-group label {
    font-size: 0.85rem;
  }

  .form-group input {
    padding: 0.6rem 0.6rem 0.6rem 2.5rem;
    font-size: 0.9rem;
  }

  .btn {
    padding: 0.7rem;
    font-size: 0.9rem;
  }
}