body {
  font-family: 'Segoe UI', sans-serif;
  background: #f4f6f9;
  margin: 0;
  padding: 0;
}

.header {
  background: #0078d7;
  color: #fff;
  padding: 20px;
  text-align: center;
}

.container {
  max-width: 1100px;
  margin: 40px auto;
  background: #fff;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  text-align: center;
}

.subtitle {
  font-size: 18px;
  color: #555;
  margin-bottom: 25px;
}

.icons {
  margin: 0 auto;
}

.icon-card {
  text-align: center;
  font-size: 14px;
}

.icon-card span {
  font-size: 16px;
  font-weight: bold;
  color: #0078d7;
}

.icon-card .desc {
  font-size: 13px;
  color: #555;
}

.upload-form {
  margin-top: 30px;
}

.file-input {
  padding: 12px;
  border: 2px dashed #ccc;
  border-radius: 8px;
  cursor: pointer;
}

.file-input:hover {
  border-color: #0078d7;
}

.btn-table {
  margin-top: 20px;
}

.upload-btn {
  width: 100%;              /* Responsive genişlik */
  height: 40px;             /* Sabit yükseklik */
  background: #add8e6;      /* Açık mavi arka plan */
  color: #000;              /* Siyah yazı */
  border: none;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.upload-btn:hover {
  background: #87ceeb;      /* Hover için biraz daha koyu mavi */
  transform: scale(1.05);
}

.footer {
  background: #f1f1f1;
  text-align: center;
  padding: 15px;
  margin-top: 40px;
  font-size: 14px;
  color: #555;
}