* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  padding: 20px;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.section {
  background: #fff;
  margin: 20px 0;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

h2 {
  font-size: 24px;
  margin-bottom: 20px;
  word-wrap: break-word;
}

.upload-box {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.upload-box input[type="file"] {
  border: 1px solid #ccc;
  padding: 8px;
  border-radius: 5px;
  cursor: pointer;
  max-width: 100%;
  width: auto;
}

.btn {
  background-color: #28a745;
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 14px;
  transition: 0.3s ease;
}

.btn:hover {
  background-color: #218838;
}

.image {
  width: 100%;
  max-width: 200px;
  height: auto;
  border-radius: 8px;
  margin-top: 10px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

/* =========================
   TABLET RESPONSIVE
========================= */
@media (max-width: 768px) {
  body {
    padding: 15px;
  }

  .container {
    width: 100%;
  }

  .section {
    padding: 18px 15px;
  }

  h2 {
    font-size: 22px;
  }

  .upload-box {
    gap: 12px;
  }

  .btn {
    padding: 10px 16px;
    font-size: 14px;
  }

  .image {
    max-width: 180px;
  }
}

/* =========================
   MOBILE RESPONSIVE
========================= */
@media (max-width: 480px) {
  body {
    padding: 10px;
  }

  .section {
    padding: 15px 12px;
    border-radius: 6px;
  }

  h2 {
    font-size: 18px;
    margin-bottom: 15px;
  }

  .upload-box {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .upload-box input[type="file"] {
    width: 100%;
    font-size: 13px;
  }

  .btn {
    width: 100%;
    padding: 12px;
    font-size: 14px;
  }

  .image {
    max-width: 100%;
    border-radius: 6px;
  }
}

/* =========================
   EXTRA SMALL DEVICES
========================= */
@media (max-width: 320px) {
  h2 {
    font-size: 16px;
  }

  .btn {
    font-size: 13px;
    padding: 10px;
  }
}