* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--sera-font-family);
    background: var(--sera-warm-cream);
    color: var(--sera-on-background);
    font-size: var(--sera-body-medium);
    line-height: 1.8;
    letter-spacing: 0.02em;
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-weight: 300;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--sera-font-display);
    font-weight: 500;
    letter-spacing: 0.02em;
    line-height: 1.4;
}

::selection {
    background: var(--sera-primary);
    color: white;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}