/* Reset & base styles shared by the whole app */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #0d1117;
    color: #c9d1d9;
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
}

h1 {
    font-size: 2.5em;
    margin-bottom: 30px;
    color: #f0f6fc;
}

button {
    background-color: #238636;
    color: white;
    border: none;
    padding: 15px 35px;
    margin: 10px 0;
    font-size: 18px;
    border-radius: 10px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

button:hover {
    background-color: #2ea043;
    transform: translateY(-2px);
}

.response {
    margin-top: 20px;
    padding: 15px;
    max-width: 400px;
    text-align: center;
    word-wrap: break-word;
    font-size: 16px;
    min-height: 24px;
}

/* Loader animato */
.loader {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #4a90e2;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    display: inline-block;
    margin-left: 10px;
    vertical-align: middle;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.dev-only {
    display: none;
}