body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #505555, #838789);
  text-align: center;
}

/* HEADER */
header {
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  padding: 15px;
  font-size: 22px;
}

/* COMMON BOX STYLE */
.login-box, .select-box, .confirm-box, .success-box, #parkingPage {
  background: rgba(107, 119, 119, 0.95);
  width: 340px;
  margin: 40px auto;
  padding: 25px;
  border-radius: 15px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
  animation: fadeIn 0.6s ease-in-out;
}

/* ANIMATION */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(25px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* INPUTS */
input, select {
  width: 90%;
  padding: 12px;
  margin: 12px;
  border-radius: 8px;
  border: 1px solid #ccc;
}

/* BUTTONS */
button {
  padding: 12px 25px;
  background: linear-gradient(135deg, #2ecc71, #27ae60);
  color: white;
  border: none;
  border-radius: 25px;
  margin: 10px;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  transform: scale(1.08);
}

/* SLOT AREA */
.slots {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 20px;
}

/* SLOT */
.slot {
  width: 95px;
  height: 75px;
  margin: 10px;
  border-radius: 15px;
  font-weight: bold;
  box-shadow: 0 6px 12px rgba(0,0,0,0.25);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: 0.3s;
}

.slot:hover {
  transform: scale(1.1);
}

/* FREE SLOT */
.free {
  background: linear-gradient(135deg, #2ecc71, #27ae60);
  color: white;
}

/* OCCUPIED SLOT */
.occupied {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: white;
}

/* STATUS CARDS */
.status-section {
  display: flex;
  justify-content: center;
  margin-top: 25px;
}

.card {
  background: white;
  margin: 10px;
  padding: 15px;
  width: 200px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

/* FOOTER */
footer {
  background: rgba(0,0,0,0.7);
  color: white;
  padding: 10px;
  position: fixed;
  bottom: 0;
  width: 100%;
}

/* MOBILE */
@media (max-width: 600px) {
  .login-box, .select-box, .confirm-box, .success-box, #parkingPage {
    width: 90%;
  }

  .slots {
    flex-direction: column;
  }
}