* {
  box-sizing: border-box;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  margin: 0;
  background: #f5f7fb;
}

.page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card {
  background: #ffffff;
  width: 100%;
  max-width: 420px;
  padding: 32px;
  border-radius: 14px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
  text-align: center;
}

h1 {
  margin: 0;
  font-size: 24px;
  font-weight: 600;
}

.subtitle {
  margin: 8px 0 24px;
  color: #666;
  font-size: 14px;
}

.dropzone {
  display: block;
  border: 2px dashed #c7c7c7;
  border-radius: 10px;
  padding: 28px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.dropzone:hover {
  border-color: #4f46e5;
  background: #f3f4ff;
}

.dropzone input {
  display: none;
}

.dropzone-content strong {
  display: block;
  font-size: 16px;
  color: #333;
}

.dropzone-content span {
  display: block;
  font-size: 13px;
  color: #777;
  margin-top: 6px;
}

button {
  margin-top: 20px;
  width: 100%;
  padding: 12px;
  background: #4f46e5;
  border: none;
  border-radius: 8px;
  color: white;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
}

button:hover {
  background: #4338ca;
}

.footer {
  margin-top: 18px;
  font-size: 12px;
  color: #888;
}