body {
    font-family: 'Arial', sans-serif;
    text-align: center;
    background-color: #000;
    margin: 0;
    color: #fff;
    line-height: 1.5;
}

/* Common styles for interactive elements */
.btn, select {
    font-family: 'Arial', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    padding: 14px 40px;
    background-color: #fff;
    color: #000;
    border: 0;
    border-radius: 8px;
    cursor: pointer;
    min-width: 280px;
    transition: background-color 0.3s;
}

.btn:hover, select:hover {
    background-color: #f0f0f0;
}

select {
    appearance: none;
    background: #fff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' fill='black'><path d='M7 8l5 8 5-8z'/></svg>") no-repeat;
    background-size: 16px;
    background-position: calc(100% - 15px) center;
}

img {
    width: 100%;
    max-width: 800px;
    height: auto;
    display: block;
    margin: -80px auto -120px;
    animation: fi 1s;
    overflow: hidden;
}

@media screen and (max-width: 600px) {
    img { margin: -40px auto -60px; }
}

@keyframes fi {
    from { opacity: 0; }
    to { opacity: 1; }
}

.main {
    animation: fi 1.5s .7s both;
}

a {
    color: #fff;
    text-decoration: underline;
}

/* List styles */
ol {
    margin: auto;
    text-align: left;
    display: inline-block;
    padding-left: 24px;
    max-width: 600px;
}

li {
    margin: 12px 0;
    padding-left: 8px;
    line-height: 1.4;
}

li::marker {
    font-weight: bold;
}

/* Container styles */
.container, .instructions-container, .firmware-container {
    max-width: 600px;
    margin: 20px auto;
    border-radius: 8px;
    padding: 24px;
}

.instructions-container {
    background-color: #111;
}

.inst-button {
    padding: 0;
    background: none;
}


/* Headings */
h1, h2 {
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

h1 {
    font-size: 24px;
    margin-bottom: 32px;
}

h2 {
    font-size: 20px;
    margin: 0 0 20px;
}


@media (prefers-color-scheme: dark) {
    ewt-install-dialog {
        --mdc-theme-surface: #333;
        --mdc-dialog-heading-ink-color: #fff;
        --mdc-dialog-content-ink-color: #ddd;
        --mdc-text-field-fill-color: #ddd;
    }
}