* {
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  margin: 0;
  height: 100vh;
  background: linear-gradient(135deg, #6a0dad, #ff7a18);
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  background: white;
  padding: 40px;
  border-radius: 12px;
  text-align: center;
  width: 90%;
  max-width: 400px;
}

.upload-box {
  display: block;
  padding: 20px;
  margin: 20px 0;
  border: 2px dashed #6a0dad;
  border-radius: 8px;
  cursor: pointer;
  color: #6a0dad;
}

button {
  background: #6a0dad;
  color: white;
  border: none;
  padding: 12px 24px;
  font-size: 16px;
  border-radius: 8px;
  cursor: pointer;
}

button:hover {
  background: #ff7a18;
}

.logo {
  position: fixed;
  top: 50px;
  left: 50px;
  z-index: 10;
}

.logo img {
  height: 100px;
}

.upload-wrapper {
  position: relative;
}

.upload-box {
  position: relative;
  height: 220px;
  width: 70%;
  margin: 20px auto;   /* 🔥 ORTALAYAN SATIR */
  overflow: hidden;
  border-radius: 12px;
}


.upload-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;      /* 🔥 KRİTİK SATIR */
  object-position: center;
  background: #000;
  display: none;
}


.overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  color: white;
  font-size: 14px;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 4px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 10px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}