/* 
v1 DESIGN RULES
- Mobile-first
- Clean
- No decoration
- No animations
*/

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 16px;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background-color: #ffffff;
    color: #111111;
    line-height: 1.5;
}

header {
    margin-bottom: 24px;
}

header h1 {
    font-size: 1.5rem;
    margin: 0 0 8px 0;
}

header p {
    margin: 0;
    font-size: 0.95rem;
    color: #555555;
}

main {
    max-width: 420px;
    margin: 0 auto;
}

section {
    margin-bottom: 20px;
}

label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 6px;
}

input[type="text"] {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
    border: 1px solid #cccccc;
    border-radius: 6px;
}

button {
    width: 100%;
    margin-top: 12px;
    padding: 12px;
    font-size: 1rem;
    border: none;
    border-radius: 6px;
    background-color: #111111;
    color: #ffffff;
    cursor: pointer;
}

button:active {
    opacity: 0.9;
}

#qr-preview {
    display: flex;
    justify-content: center;
    margin-top: 12px;
}

#message {
    font-size: 0.9rem;
    color: #cc0000;
    min-height: 1em;
}

footer {
    margin-top: 32px;
    text-align: center;
    color: #777777;
}

footer small {
    font-size: 0.75rem;
}