body {
  font-family: Arial;
  margin: 0;
  background: linear-gradient(135deg, #4facfe, #00f2fe);
}

/* LOGIN */
.container {
  width: 320px;
  max-width: 90%;
  margin: 100px auto;
  background: rgba(0,0,0,0.75);
  padding: 20px;
  border-radius: 10px;
  color: white;
  text-align: center;
}

/* INPUT */
input, textarea {
  width: 95%;
  padding: 10px;
  margin: 10px 0;
  border-radius: 5px;
  border: none;
  outline: none;
}

/* BUTTON */
button {
  padding: 10px 15px;
  margin: 5px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  opacity: 0.8;
}

/* APP */
#appPage {
  display: none;
  padding: 15px;
}

/* POST BOX */
.post-box {
  background: white;
  padding: 15px;
  border-radius: 10px;
  margin-bottom: 20px;
}

/* CARD */
.card {
  background: white;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 15px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.2);
}

.card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.card p {
  padding: 10px;
}

.actions {
  padding: 10px;
  display: flex;
  gap: 5px;
}

/* MOBILE RESPONSIVE */
@media (max-width: 600px) {
  .card img {
    height: 200px;
  }

  .container {
    margin: 60px auto;
  }
}