/* 100 Thin */
@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-Thin.ttf') format('truetype');
    font-weight: 100;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-ThinItalic.ttf') format('truetype');
    font-weight: 100;
    font-style: italic;
    font-display: swap;
}

/* 200 ExtraLight */
@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-ExtraLight.ttf') format('truetype');
    font-weight: 200;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-ExtraLightItalic.ttf') format('truetype');
    font-weight: 200;
    font-style: italic;
    font-display: swap;
}

/* 300 Light */
@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-Light.ttf') format('truetype');
    font-weight: 300;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-LightItalic.ttf') format('truetype');
    font-weight: 300;
    font-style: italic;
    font-display: swap;
}

/* 400 Regular (normal) */
@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-Italic.ttf') format('truetype');
    font-weight: 400;
    font-style: italic;
    font-display: swap;
}

/* 500 Medium */
@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-Medium.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-MediumItalic.ttf') format('truetype');
    font-weight: 500;
    font-style: italic;
    font-display: swap;
}

/* 600 SemiBold */
@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-SemiBold.ttf') format('truetype');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-SemiBoldItalic.ttf') format('truetype');
    font-weight: 600;
    font-style: italic;
    font-display: swap;
}

/* 700 Bold */
@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-BoldItalic.ttf') format('truetype');
    font-weight: 700;
    font-style: italic;
    font-display: swap;
}

/* 800 ExtraBold */
@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-ExtraBold.ttf') format('truetype');
    font-weight: 800;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-ExtraBoldItalic.ttf') format('truetype');
    font-weight: 800;
    font-style: italic;
    font-display: swap;
}

/* 900 Black */
@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-Black.ttf') format('truetype');
    font-weight: 900;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Kanit';
    src: url('/fonts/Kanit/Kanit-BlackItalic.ttf') format('truetype');
    font-weight: 900;
    font-style: italic;
    font-display: swap;
}

/* ใช้ฟอนต์ทั่วเว็บ พร้อม fallback */
:root {
    --font-sans: 'Kanit', system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Thai", "Helvetica Neue", Arial, sans-serif;
}

html, body {
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.45;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}