*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-family);
    background: var(--bg-app);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea {
    font: inherit; color: inherit; border: none; background: none;
    outline: none; -webkit-appearance: none; appearance: none;
}
button { cursor: pointer; }
img { max-width: 100%; display: block; }