/* Roboto Regular - Optimized subset (a-z, A-Z, 0-9, common symbols) */
@font-face {
    font-family: 'Roboto';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('fonts/roboto-regular-subset.woff2') format('woff2');
    unicode-range: U+0020-007F; /* Basic Latin: space to ~ */
}

/* Roboto Medium */
@font-face {
    font-family: 'Roboto';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('fonts/roboto-medium-subset.woff2') format('woff2');
    unicode-range: U+0020-007F;
}

/* Roboto Semi-Bold */
@font-face {
    font-family: 'Roboto';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('fonts/roboto-semibold-subset.woff2') format('woff2');
    unicode-range: U+0020-007F;
}

/* Roboto Bold */
@font-face {
    font-family: 'Roboto';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('fonts/roboto-bold-subset.woff2') format('woff2');
    unicode-range: U+0020-007F;
}