body {
  font-family: "Inter", sans-serif;
  background: #f7f8fa;
  color: #222;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 700px;
  margin: 50px auto;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  padding: 30px 40px;
}

header {
  text-align: center;
  margin-bottom: 30px;
}

h1 {
  margin: 0;
  font-size: 1.8em;
}

label {
  display: block;
  margin: 15px 0 5px;
  font-weight: 600;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="file"] {
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #ccc;
  font-size: 1em;
}

button {
  display: block;
  margin: 30px auto 0;
  background: #1b74e4;
  color: white;
  font-size: 1.1em;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  padding: 12px 25px;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #155bb5;
}

#preview {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.thumb {
  position: relative;
  border: 1px solid #ddd;
  border-radius: 10px;
  overflow: hidden;
  background: #fafafa;
  text-align: center;
  padding: 10px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}

.thumb img {
  width: 100%;
  height: 110px;
  object-fit: cover;
  border-radius: 6px;
  display: block;
  margin: 0 auto;
}

.thumb button.remove {
  position: absolute;
  top: 6px;
  right: 6px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  font-size: 14px;
  cursor: pointer;
  line-height: 18px;
  padding: 0;
  transition: 0.2s;
}

.thumb button.remove:hover {
  background: #e74c3c;
}

.resolution-input {
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.resolution-input input {
  width: 80px;
  text-align: center;
  border: 1px solid #ccc;
  border-radius: 6px;
  padding: 4px;
}

.resolution-input button {
  border: none;
  background: #eee;
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
}

.resolution-input button:hover {
  background: #ddd;
}