body { 
  font-family: Arial, sans-serif;
  background: #111;
  margin: 0;
  color: #c0c0c0;
}

/* HEADER */
header {
  background: #000;
  color: #f37021;
  padding: 20px;
  text-align: center;
  border-bottom: 3px solid #f37021;
}

/* NAV */
nav {
  margin-top: 10px;
}

nav a {
  color: #f37021;
  text-decoration: none;
  margin: 0 10px;
  font-weight: bold;
  padding: 6px 12px;
  border: 1px solid #f37021;
  border-radius: 20px;
  transition: 0.3s;
}

nav a:hover {
  background: #f37021;
  color: #000;
}

/* MAIN CONTENT */
main {
  width: 90%;
  max-width: 800px;
  margin: 30px auto;
  background: #1a1a1a;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(243, 112, 33, 0.3);
}

/* HEADINGS */
h2 {
  margin-top: 0;
  color: #f37021;
}

/* FORM */
form p {
  margin-bottom: 15px;
}

/* INPUTS */
input[type="text"],
input[type="number"],
select {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  box-sizing: border-box;
  background: #2a2a2a;
  color: #c0c0c0;
  border: 1px solid #555;
  border-radius: 5px;
}

/* BUTTON */
input[type="submit"] {
  background: #f37021;
  color: #000;
  border: none;
  padding: 12px 18px;
  cursor: pointer;
  border-radius: 25px;
  font-weight: bold;
  transition: 0.3s;
}

input[type="submit"]:hover {
  background: #ff8c42;
}

/* MESSAGES */
.error {
  color: #ff4d4d;
  font-weight: bold;
}

.success {
  color: #4dff88;
  font-weight: bold;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 20px;
  background: #000;
  color: #f37021;
  margin-top: 30px;
  border-top: 3px solid #f37021;
}