*{margin:0;padding:0;box-sizing:border-box}@font-face{font-family:Open Sans;font-style:normal;font-weight:300 800;font-stretch:75% 100%;font-display:swap;src:url(../../../fonts/open-sans-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}@font-face{font-family:Open Sans;font-style:normal;font-weight:300 800;font-stretch:75% 100%;font-display:swap;src:url(../../../fonts/open-sans-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}@font-face{font-family:Open Sans;font-style:normal;font-weight:300 800;font-stretch:75% 100%;font-display:swap;src:url(../../../fonts/open-sans-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}:root,:root.dark{--bg: #0c0a09;--surface: #1a1817;--surface-hover: #242220;--border: #2d2a27;--text: #e8e6e1;--text-muted: #8f8a83;--accent: #d4a046;--accent-glow: rgba(212, 160, 70, .12);--radius: 12px}:root.light{--bg: #f6f5f2;--surface: #ffffff;--surface-hover: #efeeea;--border: #e0ddd8;--text: #1c1a18;--text-muted: #8a8580;--accent: #2563eb;--accent-glow: rgba(37, 99, 235, .08);--radius: 12px}html.light{background:#f6f5f2}@media(prefers-color-scheme:light){:root:not(.dark):not(.light){--bg: #f6f5f2;--surface: #ffffff;--surface-hover: #efeeea;--border: #e0ddd8;--text: #1c1a18;--text-muted: #8a8580;--accent: #2563eb;--accent-glow: rgba(37, 99, 235, .08);--radius: 12px}}html{font-family:Open Sans,Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg, #0a0807);color:var(--text);font-size:18px}body{min-height:100vh}h1,h2,h3{font-weight:600;letter-spacing:-.02em}h1{color:var(--accent);text-shadow:0 0 30px var(--accent-glow)}