/**
 * Vietnamese Font Optimization
 * Font: Inter (supports Vietnamese)
 */

/* Import Inter font with Vietnamese subset */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap&subset=vietnamese');

/* Apply Inter font to all elements */
body,
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6,
p, span, div, a, li, td, th,
input, textarea, select, button,
.product-name,
.woocommerce-loop-product__title,
.price,
.amount,
.nasa-title,
.menu-item a,
.nav-heading,
.widget-title {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif !important;
}

/* Optimize line height for Vietnamese text */
body {
    line-height: 1.6;
}

p, .woocommerce-product-details__short-description {
    line-height: 1.7;
}

/* Adjust letter spacing for better readability */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    letter-spacing: -0.02em;
}

/* Product title adjustments */
.product-name,
.woocommerce-loop-product__title {
    letter-spacing: 0;
    word-spacing: 0.05em;
}

/* Menu items */
.nav-wrapper .menu-item a {
    letter-spacing: 0;
}

/* Buttons */
.button,
.btn,
button,
input[type="submit"],
input[type="button"],
.add_to_cart_button,
.single_add_to_cart_button {
    font-weight: 500;
    letter-spacing: 0;
}

/* Price display */
.price,
.amount {
    font-weight: 600;
}

/* Fix common Vietnamese character display issues */
input,
textarea,
select {
    font-family: 'Inter', sans-serif !important;
}

/* Ensure proper rendering of Vietnamese diacritics */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Mobile font size adjustments */
@media (max-width: 767px) {
    body {
        font-size: 14px;
    }
    
    h1 { font-size: 24px; }
    h2 { font-size: 20px; }
    h3 { font-size: 18px; }
    h4 { font-size: 16px; }
    h5 { font-size: 14px; }
    h6 { font-size: 13px; }
}