/* CSS Document */
body { font-family: Arial, sans-serif; max-width: 700px; margin: 2rem auto; padding: 0 1rem; background: #f9f9f9; color: #222;}
h1, h2, h3 { text-align: center; }

form { background: #fff; padding: 1rem 1.5rem 1.5rem; border: 1px solid #ccc; border-radius: 6px; box-shadow: 0 1px 6px rgba(0,0,0,0.1); }
form { margin-bottom: 2rem; }
    .flex-row { display: flex; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
    .flex-row > div { flex: 1 1 120px; min-width: 120px; }
    input[type="text"], input[type="number"], select { width: 100%; padding: 6px; box-sizing: border-box; }

    #dummyUrl { flex: 1; padding: 8px; font-family: monospace; }
    .url-copy-container { display: flex; gap: 10px; margin-bottom: 10px; max-width: 100%; }
    img#preview-image { max-width: 100%; border: 1px solid #ccc; margin-bottom: 10px; display: block; margin-left: auto; margin-right: auto; }
    .btn-view-tab { background: #333; color: #fff; text-decoration: none; border-radius: 4px; padding: 8px 16px; display: inline-block; margin: 0 auto 20px auto; text-align: center; }


.form-row { display: flex; gap: 12px; margin-bottom: 15px; flex-wrap: wrap; }
.form-row > label { flex: 1 0 110px; align-self: center; ont-weight: 600; font-size: 0.95rem; }
.form-row > input[type="number"],
.form-row > input[type="text"],
.form-row > select { flex: 2 1 160px; padding: 7px 10px; font-size: 1rem; border: 1px solid #aaa; border-radius: 4px; }

button { cursor: pointer; background-color: #222; border: none; color: white; padding: 10px 20px; font-size: 1.1rem; border-radius: 5px; transition: background-color 0.3s ease; display: block; margin: 0 auto; }
button:hover { background-color: #444; }
h2, h3 { margin-top: 2rem; }
img.preview-image { max-width: 100%; border: 1px solid #ccc; margin-bottom: 15px; }
.url-container { display: flex; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.url-container input[type="text"] { flex: 1 1 100%; padding: 8px; font-family: monospace; font-size: 1rem; border: 1px solid #999; border-radius: 4px; }

@media(min-width: 520px) {
  .url-container input[type="text"] {
    flex: 1 1 auto;
  }
}
.url-container button { flex: 0 0 auto; padding: 8px 14px; font-size: 1rem; background: #005aab; border-radius: 4px; border: none; color: #fff; user-select: none; }
.url-container button:hover { background: #004080; }
.qr-code { margin-top: 10px; max-width: 180px; border: 1px solid #ddd; border-radius: 6px; }