body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f5f5f5;
  color: #333;
}

/* ===== NAVBAR ===== */
.logo { max-width: 50%; height: auto; }
.navbar { padding:.5em; background: url(img/vfixlar.png) center center; box-shadow: 0 14px 14px -14px rgba(0,0,0,.75); }
.sticky { position: sticky; top: 0; z-index: 1; }
.hidden { display: none; }
.nav__items { list-style: none; margin: 0; padding: 0; }
.nav__link { color: #eee; text-decoration: none; }
.nav__items .nav__link:hover { color: rgb(252,41,74); }

@media (min-width: 800px) {
  .navbar { display: flex; justify-content: space-between; align-items: center; }
  .nav { display: flex !important; }
  .nav__items { display: flex; flex-direction: row; gap: 20px; }
  .nav__items .nav__link { font-size: 1rem; }
}
@media (max-width: 799px) {
  .nav__items {
    flex-direction: column; text-align: center;
    background: rgb(249,178,51);
    position: fixed; top: 0; left: -100%; width: 100%; height: 100%;
    justify-content: center; transition: left .3s ease;
  }
  #nav:checked ~ .nav .nav__items { left: 0; }
}
header {
  background: #004466;
  color: #fff;
  text-align: center;
  padding: 1.5rem;
}
header h1 {
  margin: 0;
  font-size: 1.5rem;
}
form {
  max-width: 600px;
  margin: 2rem auto;
  background: #fff;
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
label {
  font-weight: bold;
  margin-bottom: 0.3rem;
  display: block;
}
input, select {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 1rem;
}
input:focus, select:focus {
  border-color: #004466;
  outline: none;
}

button {
  background: #ff6600;
  color: #fff;
  padding: 12px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
}
button:hover {
  background: #e65c00;
}
.msg {
  text-align: center;
  margin-top: 1rem;
  font-weight: bold;
}
@media (max-width: 600px) {
  form {
    margin: 1rem;
    padding: 1rem;
  }
}