/* vietnamese */
@font-face {
  font-family: 'STIX Two Text';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url(../assets/fonts/stixtext-400-italic-vietnamese.woff2) format('woff2');
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}
/* latin-ext */
@font-face {
  font-family: 'STIX Two Text';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url(../assets/fonts/stixtext-400-italic-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'STIX Two Text';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url(../assets/fonts/stixtext-400-italic-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* vietnamese */
@font-face {
  font-family: 'STIX Two Text';
  font-style: italic;
  font-weight: 700;
  font-display: swap;
  src: url(../assets/fonts/stixtext-700-italic-vietnamese.woff2) format('woff2');
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}
/* latin-ext */
@font-face {
  font-family: 'STIX Two Text';
  font-style: italic;
  font-weight: 700;
  font-display: swap;
  src: url(../assets/fonts/stixtext-700-italic-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'STIX Two Text';
  font-style: italic;
  font-weight: 700;
  font-display: swap;
  src: url(../assets/fonts/stixtext-700-italic-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* vietnamese */
@font-face {
  font-family: 'STIX Two Text';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(../assets/fonts/stixtext-400-normal-vietnamese.woff2) format('woff2');
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}
/* latin-ext */
@font-face {
  font-family: 'STIX Two Text';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(../assets/fonts/stixtext-400-normal-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'STIX Two Text';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(../assets/fonts/stixtext-400-normal-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* vietnamese */
@font-face {
  font-family: 'STIX Two Text';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(../assets/fonts/stixtext-700-normal-vietnamese.woff2) format('woff2');
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}
/* latin-ext */
@font-face {
  font-family: 'STIX Two Text';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(../assets/fonts/stixtext-700-normal-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'STIX Two Text';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(../assets/fonts/stixtext-700-normal-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}


/* STIX Two Math (symbols + text-mode fallback) */
@font-face{font-family:"STIX Two Math";font-style:normal;font-weight:400;font-display:swap;
  src:url("../assets/fonts/stix-two-math.woff2") format("woff2");}


/* ===== FONT ĐỀ THI: STIX Two Text + STIX Two Math (Thầy Trung SN) ===== */
:root{ --font-de:"STIX Two Text","STIX Two Math","Times New Roman",Georgia,serif; }
/* Màn LÀM BÀI + xem lời giải */
#ldBody, .ld-ten, .ld-cau, .ld-q, .ld-so, .ld-opt, .ld-line, .ld-ds,
.ld-phan, .ld-phan h3, .ld-phan p, .ld-bangdiem, .ld-thang, .ld-kq{
  font-family:var(--font-de) !important;
}
/* PDF xuất đề (in / tải) */
.de-paper, .de-paper .de-cau, .de-paper .de-q, .de-paper .de-opts,
.de-paper .de-phan, .de-paper .de-meta, .de-paper .de-ten{
  font-family:var(--font-de) !important;
}
/* Chữ (text-mode) BÊN TRONG công thức KaTeX -> STIX cho khớp tiếng Việt.
   KHÔNG override glyph toán của KaTeX (giữ nguyên spacing chuẩn). */
.ld-cau .katex .text, .ld-cau .katex .mord.text,
.de-paper .katex .text, .de-paper .katex .mord.text{
  font-family:"STIX Two Text","STIX Two Math",serif !important;
}

/* ===== Mở rộng: khối LUYỆN TẬP (tab quiz) — toàn bộ nội dung toán trong app ===== */
.qbox, .opts .opt, .opts .opt span, .solbox, .sol-t, .verdict{
  font-family:var(--font-de) !important;
}
.qbox .katex .text, .qbox .katex .mord.text,
.opts .katex .text, .opts .katex .mord.text,
.solbox .katex .text, .solbox .katex .mord.text{
  font-family:"STIX Two Text","STIX Two Math",serif !important;
}