:root {
  --primary: #4ECDC4;
  --secondary: #066654;
  --white: #FFFFFF;
  --black: #0A0A0A;
  --light: #EAEAEA;
}

body {
  font-family: 'Sora', sans-serif;
  background-color: var(--white);
  color: var(--black);
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background-color: var(--white);
  padding: 20px 0;
  border-bottom: 1px solid var(--light);
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary);
  text-decoration: none;
}

main {
  flex: 1;
  padding: 40px 0;
}

.card {
  background-color: var(--white);
  border: 1px solid var(--light);
  border-radius: 8px;
  padding: 30px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.btn {
  display: inline-block;
  background-color: var(--primary);
  color: var(--white);
  padding: 12px 24px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s;
  font-size: 1rem;
}

.btn:hover, .btn:focus {
  background-color: var(--secondary);
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

input[type="text"] {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--light);
  border-radius: 4px;
  font-family: 'Sora', sans-serif;
  font-size: 1rem;
  box-sizing: border-box;
}

input[type="text"]:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.2);
}

footer {
  text-align: center;
  padding: 20px;
  border-top: 1px solid var(--light);
  color: #666;
  font-size: 0.9rem;
}

.error-message {
  color: #d32f2f;
  margin-bottom: 20px;
  font-weight: 600;
}

.success-message {
  color: var(--secondary);
  margin-bottom: 20px;
  font-weight: 600;
}

.qr-container {
  text-align: center;
  margin: 30px 0;
}

.qr-container img {
  border: 4px solid var(--light);
  border-radius: 8px;
  max-width: 250px;
}

.info-box {
  background-color: var(--light);
  padding: 15px;
  border-radius: 4px;
  margin-bottom: 20px;
}