@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2JL7SUc.woff2) format("woff2");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa0ZL7SUc.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2ZL7SUc.woff2) format("woff2");unicode-range:U+1F00-1FFF}@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1pL7SUc.woff2) format("woff2");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2pL7SUc.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:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa25L7SUc.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:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7.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}@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2JL7SUc.woff2) format("woff2");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa0ZL7SUc.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2ZL7SUc.woff2) format("woff2");unicode-range:U+1F00-1FFF}@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1pL7SUc.woff2) format("woff2");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2pL7SUc.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:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa25L7SUc.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:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7.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}@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2JL7SUc.woff2) format("woff2");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa0ZL7SUc.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2ZL7SUc.woff2) format("woff2");unicode-range:U+1F00-1FFF}@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1pL7SUc.woff2) format("woff2");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2pL7SUc.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:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa25L7SUc.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:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7.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}@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2JL7SUc.woff2) format("woff2");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa0ZL7SUc.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2ZL7SUc.woff2) format("woff2");unicode-range:U+1F00-1FFF}@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1pL7SUc.woff2) format("woff2");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2pL7SUc.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:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa25L7SUc.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:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7.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}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gW8tenXg.woff2) format("woff2");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gf8tenXg.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gY8tenXg.woff2) format("woff2");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gU8tenXg.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:"Source Serif 4";font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gV8tenXg.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:"Source Serif 4";font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gb8tc.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}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gW8tenXg.woff2) format("woff2");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gf8tenXg.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gY8tenXg.woff2) format("woff2");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gU8tenXg.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:"Source Serif 4";font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gV8tenXg.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:"Source Serif 4";font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gb8tc.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}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:700;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gW8tenXg.woff2) format("woff2");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:700;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gf8tenXg.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:700;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gY8tenXg.woff2) format("woff2");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:700;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gU8tenXg.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:"Source Serif 4";font-style:normal;font-weight:700;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gV8tenXg.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:"Source Serif 4";font-style:normal;font-weight:700;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gb8tc.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}html[data-shell-theme=blue]{--ink: #0a2f52;--ink-light: #134a7a;--paper: #e8f1fa;--card: #ffffff;--border: #b8cfe6;--gold: #2563eb;--gold-soft: #dbeafe;--teal: #1d6fbf;--teal-soft: #e0efff;--danger: #b42318;--danger-soft: #fee4e2;--text: #0f2942;--muted: #475569;--primary: #1d6fbf;--primary-strong: #0b4a8a;--primary-soft: #dbeafe;--on-primary: #ffffff;--accent: #2563eb;--bg: #e8f1fa;--surface: #ffffff;--surface-soft: #f0f7fd;--surface-muted: #d9e8f6;--sidebar-bg: #0a2f52;--sidebar-active-bg: #134a7a;--sidebar-hover-bg: rgba(255, 255, 255, .1);--shell-sidebar-fg: #ffffff;--shell-nav-text: rgba(255, 255, 255, .92);--shell-nav-muted: rgba(255, 255, 255, .72);--shell-nav-icon-muted: rgba(255, 255, 255, .85);--shell-border-subtle: rgba(255, 255, 255, .12);--shell-focus-ring: #60a5fa;--shadow-sm: 0 1px 3px rgba(10, 47, 82, .08);--shadow-md: 0 4px 12px rgba(10, 47, 82, .1);--shadow-lg: 0 8px 24px rgba(10, 47, 82, .14)}html[data-shell-theme=red]{--ink: #3f0d0b;--ink-light: #7c2d12;--paper: #fdf6f4;--card: #fffaf8;--border: #f0cfc4;--gold: #c2410c;--gold-soft: #fde8e0;--teal: #b45309;--teal-soft: #ffedd5;--danger: #9f1239;--danger-soft: #ffe4e6;--text: #2a1210;--muted: #7c4a3e;--primary: #c2410c;--primary-strong: #9a3412;--primary-soft: #fde8e0;--on-primary: #fff7ed;--accent: #ea580c;--bg: #fdf6f4;--surface: #fffaf8;--surface-soft: #fff1eb;--surface-muted: #f8e4db;--sidebar-bg: #4a1510;--sidebar-active-bg: #7c2d12;--sidebar-hover-bg: rgba(255, 255, 255, .1);--shell-sidebar-fg: #fff7ed;--shell-nav-text: rgba(255, 247, 237, .92);--shell-nav-muted: rgba(255, 237, 213, .72);--shell-nav-icon-muted: rgba(255, 237, 213, .85);--shell-border-subtle: rgba(255, 237, 213, .14);--shell-focus-ring: #fb923c;--shadow-sm: 0 1px 3px rgba(74, 21, 16, .08);--shadow-md: 0 4px 12px rgba(74, 21, 16, .1);--shadow-lg: 0 8px 24px rgba(74, 21, 16, .12)}html[data-shell-theme=yellow]{--ink: #3d2e0a;--ink-light: #713f12;--paper: #fbf6e8;--card: #fffdf6;--border: #e8d7a3;--gold: #eab308;--gold-soft: #f5e6b8;--teal: #a16207;--teal-soft: #fef3c7;--danger: #9a3412;--danger-soft: #ffedd5;--text: #3d2e0a;--muted: #7c6514;--primary: #eab308;--primary-strong: #ca8a04;--primary-soft: #f5e6b8;--on-primary: #1c1403;--accent: #ca8a04;--bg: #fbf6e8;--surface: #fffdf6;--surface-soft: #faf3d7;--surface-muted: #f0e4b8;--sidebar-bg: #3d2e0a;--sidebar-active-bg: #713f12;--sidebar-hover-bg: rgba(255, 247, 220, .12);--shell-sidebar-fg: #fffbeb;--shell-nav-text: rgba(255, 251, 235, .94);--shell-nav-muted: rgba(254, 243, 199, .75);--shell-nav-icon-muted: rgba(254, 243, 199, .88);--shell-border-subtle: rgba(254, 243, 199, .16);--shell-focus-ring: #ca8a04;--shadow-sm: 0 1px 3px rgba(61, 46, 10, .08);--shadow-md: 0 4px 12px rgba(61, 46, 10, .1);--shadow-lg: 0 8px 24px rgba(61, 46, 10, .12)}html[data-shell-theme=gray]{--ink: #1e293b;--ink-light: #334155;--paper: #f4f5f7;--card: #ffffff;--border: #d1d5db;--gold: #64748b;--gold-soft: #e2e8f0;--teal: #475569;--teal-soft: #e2e8f0;--danger: #9f1239;--danger-soft: #ffe4e6;--text: #1e293b;--muted: #64748b;--primary: #334155;--primary-strong: #1e293b;--primary-soft: #e2e8f0;--on-primary: #f8fafc;--accent: #475569;--bg: #f4f5f7;--surface: #ffffff;--surface-soft: #f1f5f9;--surface-muted: #e2e8f0;--sidebar-bg: #334155;--sidebar-active-bg: #1e293b;--sidebar-hover-bg: rgba(255, 255, 255, .1);--shell-sidebar-fg: #f8fafc;--shell-nav-text: rgba(248, 250, 252, .94);--shell-nav-muted: rgba(226, 232, 240, .75);--shell-nav-icon-muted: rgba(226, 232, 240, .88);--shell-border-subtle: rgba(226, 232, 240, .14);--shell-focus-ring: #64748b;--shadow-sm: 0 1px 3px rgba(15, 23, 42, .06);--shadow-md: 0 4px 12px rgba(15, 23, 42, .08);--shadow-lg: 0 8px 24px rgba(15, 23, 42, .1)}.shell{--shell-sidebar-fg: #ffffff;--shell-nav-text: #c7ccd9;--shell-nav-muted: #8b93a6;--shell-nav-icon-muted: #c7ccd9;--shell-border-subtle: rgba(255, 255, 255, .08);--shell-focus-ring: var(--primary)}html[data-shell-theme=blue] .shell{--shell-sidebar-fg: #ffffff;--shell-nav-text: rgba(255, 255, 255, .92);--shell-nav-muted: rgba(255, 255, 255, .72);--shell-nav-icon-muted: rgba(255, 255, 255, .85);--shell-border-subtle: rgba(255, 255, 255, .12);--shell-focus-ring: #60a5fa}html[data-shell-theme=red] .shell{--shell-sidebar-fg: #fff7ed;--shell-nav-text: rgba(255, 247, 237, .92);--shell-nav-muted: rgba(255, 237, 213, .72);--shell-nav-icon-muted: rgba(255, 237, 213, .85);--shell-border-subtle: rgba(255, 237, 213, .14);--shell-focus-ring: #fb923c}html[data-shell-theme=yellow] .shell{--shell-sidebar-fg: #fffbeb;--shell-nav-text: rgba(255, 251, 235, .94);--shell-nav-muted: rgba(254, 243, 199, .75);--shell-nav-icon-muted: rgba(254, 243, 199, .88);--shell-border-subtle: rgba(254, 243, 199, .16);--shell-focus-ring: #ca8a04}html[data-shell-theme=gray] .shell{--shell-sidebar-fg: #f8fafc;--shell-nav-text: rgba(248, 250, 252, .94);--shell-nav-muted: rgba(226, 232, 240, .75);--shell-nav-icon-muted: rgba(226, 232, 240, .88);--shell-border-subtle: rgba(226, 232, 240, .14);--shell-focus-ring: #64748b}:root{--ink: #101B2D;--ink-light: #1C2E4A;--paper: #F6F3EC;--card: #FFFFFF;--border: #E4DFD2;--gold: #B8863E;--gold-soft: #F0E4CE;--teal: #2F6F63;--teal-soft: #DEEAE6;--danger: #9A4B3B;--danger-soft: #F5E3DD;--text: #1C2230;--muted: #7A7568;--primary: #2F6F63;--primary-strong: #1E5249;--primary-soft: #DEEAE6;--on-primary: #FFFFFF;--accent: #B8863E;--bg: #F6F3EC;--surface: #FFFFFF;--surface-soft: #FAF8F3;--surface-muted: #F0EDE6;--sidebar-bg: #101B2D;--sidebar-active-bg: #1C2E4A;--sidebar-hover-bg: rgba(255, 255, 255, .06);--sidebar-width: 256px;--sidebar-width-collapsed: 56px;--sidebar-nav-size: .875rem;--font-serif: "Source Serif 4", Georgia, serif;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 9999px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .06);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .08)}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:var(--font-sans);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--primary);text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}.serif{font-family:var(--font-serif)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:color-mix(in srgb,var(--muted) 45%,var(--border))}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.shell{display:flex;height:100vh;overflow:hidden;font-family:var(--font-sans);background:var(--paper);color:var(--text)}.shell-sidebar{width:var(--sidebar-width);background:var(--sidebar-bg);color:var(--shell-sidebar-fg, #FFFFFF);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden;position:relative}.shell-main{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden}.shell-content{flex:1;overflow-y:auto;background:var(--paper);padding:var(--space-lg)}.btn{display:inline-flex;align-items:center;gap:8px;border-radius:var(--radius-md);padding:.5rem 1rem;border:1px solid var(--border);background:transparent;color:var(--text);font-weight:500;font-size:.875rem;transition:all .15s ease}.btn:hover{background:var(--surface-soft)}.btn.primary,.btn-primary{background:var(--primary);color:var(--on-primary, #FFFFFF);border-color:var(--primary)}.btn.primary:hover,.btn-primary:hover{background:var(--primary-strong);border-color:var(--primary-strong);color:var(--on-primary, #FFFFFF)}.btn.gold{background:var(--gold);color:var(--on-primary, #FFFFFF);border-color:var(--gold)}.btn.gold:hover{background:color-mix(in srgb,var(--gold) 82%,#000)}.btn.danger{background:var(--danger);color:#fff;border-color:var(--danger)}.btn.ghost{background:transparent;border-color:transparent}.btn:disabled{opacity:.5;cursor:not-allowed}.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.surface-card,.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-lg)}.page-shell{max-width:1300px;margin:0 auto;padding:var(--space-lg)}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-size:.875rem;font-weight:600;color:var(--text)}.input-wrapper{position:relative;display:flex;align-items:center}.input-wrapper input,.input-wrapper select,.input-wrapper textarea{width:100%;padding:.6rem .75rem;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--card);font-size:.875rem;color:var(--text);transition:border-color .15s ease,box-shadow .15s ease}.input-wrapper input:focus,.input-wrapper select:focus,.input-wrapper textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px #b8863e1a}.input-wrapper.has-error{border-color:var(--danger)}.field-error{color:var(--danger);font-size:.8125rem;font-weight:500}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:.75rem .6rem;border-bottom:1px solid var(--border);font-size:.875rem}th{color:var(--muted);font-weight:600;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em}tr:hover{background:var(--surface-soft)}.badge,.chip{display:inline-flex;align-items:center;padding:.2rem .6rem;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;border:1px solid}.badge-primary{color:var(--primary);background:var(--primary-soft);border-color:darken(#DEEAE6,10%)}.badge-gold{color:var(--gold);background:var(--gold-soft);border-color:darken(#F0E4CE,10%)}.badge-danger{color:var(--danger);background:var(--danger-soft);border-color:#e9c7bc}.badge-teal{color:var(--teal);background:var(--teal-soft);border-color:darken(#DEEAE6,10%)}.role-chip{display:inline-flex;align-items:center;gap:6px;padding:.2rem .7rem;border-radius:var(--radius-full);font-size:.8rem;font-weight:600}.role-chip.admin{color:var(--danger);background:var(--danger-soft)}.role-chip.instructor,.role-chip.student{color:var(--teal);background:var(--teal-soft)}.role-chip.ta{color:#7e22ce;background:#f3e8ff}.progress{height:8px;background:var(--border);border-radius:var(--radius-full);overflow:hidden;min-width:80px}.progress-fill{display:block;height:100%;background:linear-gradient(90deg,var(--gold),var(--teal));border-radius:inherit;transition:width .3s ease}.score-badge{display:inline-flex;min-width:48px;justify-content:center;padding:.15rem .6rem;border-radius:var(--radius-full);background:var(--surface-muted);font-weight:700}.score-badge.high{background:#dcfce7;color:#166534}.score-badge.zero{background:var(--danger-soft);color:var(--danger)}.app-toast-host{position:fixed;right:20px;bottom:20px;z-index:80;display:flex;flex-direction:column;gap:8px}.toast{background:var(--card);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-md);padding:12px 16px;box-shadow:var(--shadow-lg);min-width:240px;animation:slideInRight .2s ease}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.toast.success{border-color:#86efac}.toast.warning{border-color:#fcd34d}.modal-backdrop{position:fixed;inset:0;background:#101b2d80;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:100;display:flex;align-items:center;justify-content:center;padding:var(--space-md)}.modal{background:var(--card);border-radius:var(--radius-xl);width:min(600px,100%);max-height:90vh;overflow:auto;box-shadow:0 22px 55px #101b2d33;border:1px solid var(--border)}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-lg);border-bottom:1px solid var(--border)}.modal-header h3{font-family:var(--font-serif);font-size:1.125rem;font-weight:600;color:var(--ink);margin:0}.modal-close{background:none;border:none;cursor:pointer;color:var(--muted);font-size:1.125rem;padding:4px;border-radius:var(--radius-sm);transition:color .15s ease}.modal-close:hover{color:var(--text)}.modal-body{padding:var(--space-lg)}.modal-footer{display:flex;justify-content:flex-end;gap:var(--space-sm);padding:var(--space-lg);border-top:1px solid var(--border)}.tabs{display:flex;gap:8px;margin-bottom:var(--space-md)}.tabs button{border-radius:var(--radius-full);border:1px solid var(--border);background:transparent;padding:.35rem .9rem;font-size:.875rem;font-weight:500;color:var(--muted);transition:all .15s ease}.tabs button:hover{background:var(--surface-soft);color:var(--text)}.tabs button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.filter-bar{display:flex;flex-wrap:wrap;gap:var(--space-sm);align-items:center;margin-bottom:var(--space-md)}.filter-bar select,.filter-bar input{border:1px solid var(--border);border-radius:var(--radius-sm);padding:.4rem .7rem;background:var(--surface);color:var(--text);font-size:.875rem}.empty{text-align:center;color:var(--muted);padding:var(--space-xl)}.empty i{font-size:3rem;opacity:.4;margin-bottom:var(--space-md)}@media(max-width:1199px){.shell-sidebar{width:220px}.shell-content{padding:var(--space-md)}}@media(max-width:991px){.shell-sidebar{position:fixed;left:0;top:0;bottom:0;z-index:300;transform:translate(-100%);transition:transform .3s ease}.shell-sidebar:not(.collapsed){transform:translate(0)}.shell-content{padding:var(--space-md)}}@media(max-width:767px){.shell-content{padding:var(--space-sm)}}.portal-layout{display:grid;grid-template-columns:var(--sidebar-width) 1fr;min-height:100vh}.portal-content{padding:var(--space-lg);background:var(--bg);min-height:100vh}.topbar{display:flex;justify-content:space-between;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-lg);flex-wrap:wrap}.icon-btn{border:0;background:var(--primary-soft);color:var(--primary);width:40px;height:40px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:var(--space-sm)}.feature-card{border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-md);background:var(--surface-soft);color:inherit;transition:transform .15s ease,box-shadow .15s ease}.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.feature-card i{font-size:1.5rem;color:var(--primary);margin-bottom:var(--space-sm)}.metric-grid,.analytics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:var(--space-sm);margin-bottom:var(--space-md)}.metric-card,.chart-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-md)}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--space-md);background:linear-gradient(145deg,var(--paper) 0%,var(--surface-muted) 100%)}.login-container,.hub-container{width:100%;max-width:440px;background:#fffc;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:var(--radius-xl);padding:var(--space-xl) var(--space-lg);box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.5)}.brand{text-align:center;margin-bottom:var(--space-xl)}.brand .icon-wrapper{display:inline-flex;background:linear-gradient(135deg,var(--primary),var(--accent));width:72px;height:72px;border-radius:var(--radius-lg);align-items:center;justify-content:center;font-size:36px;color:#fff;margin-bottom:var(--space-md)}.brand h1{margin:0;font-size:1.75rem;font-weight:800}.brand h1 span{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}.brand p{color:var(--muted);margin:6px 0 0}.login-form{display:flex;flex-direction:column;gap:var(--space-lg)}.btn-login{margin-top:var(--space-sm);padding:var(--space-md) var(--space-lg);border-radius:var(--radius-md);font-size:1.0625rem;display:flex;justify-content:center;gap:var(--space-sm);width:100%;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border:0;font-weight:700;box-shadow:0 8px 24px #2f6f634d}.btn-login:hover{transform:translateY(-2px)}.btn-login:disabled{opacity:.6;transform:none}.student-hub{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--space-md);background:linear-gradient(145deg,var(--paper) 0%,var(--surface-muted) 100%)}.hub-container{max-width:420px;background:#ffffffbf;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-radius:var(--radius-xl);padding:var(--space-xl) var(--space-md)}.hub-header{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-xl)}.hub-header .ai-icon{background:linear-gradient(135deg,var(--primary),var(--accent));width:52px;height:52px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px}.hub-header h1{font-size:1.375rem;margin:0;font-family:var(--font-serif)}.hub-header h1 span{color:var(--gold)}.user-badge{margin-left:auto;background:var(--card);border-radius:var(--radius-full);padding:6px 16px 6px 12px;display:flex;align-items:center;gap:6px;font-size:.8125rem;border:1px solid var(--border)}.menu-grid{display:flex;flex-direction:column;gap:var(--space-sm)}.menu-item{display:flex;align-items:center;gap:14px;background:var(--card);border-radius:var(--radius-lg);padding:var(--space-md) var(--space-sm);border:1px solid var(--border);color:inherit;transition:transform .2s ease,box-shadow .2s ease}.menu-item:hover{transform:translateY(-2px);box-shadow:0 10px 24px #2f6f631f}.menu-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.25rem}.menu-icon.blue{background:var(--primary)}.menu-icon.purple{background:#8b5cf6}.menu-icon.green{background:#10b981}.menu-icon.orange{background:#f59e0b}.menu-icon.gold{background:var(--gold)}.menu-content{flex:1}.menu-content h3{margin:0;font-size:1.0625rem;font-family:var(--font-serif)}.menu-content p{margin:2px 0 0;color:var(--muted);font-size:.8125rem}.menu-badge{background:var(--danger);color:#fff;font-size:.6875rem;font-weight:700;padding:2px 10px;border-radius:var(--radius-full);margin-left:6px}.menu-arrow{color:var(--muted)}.upload-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-sm)}.upload-grid .full,.upload-grid label.full{grid-column:1 / -1}.upload-grid label{display:flex;flex-direction:column;gap:6px;font-weight:600}.upload-grid input,.upload-grid select,.upload-grid textarea{border:1px solid var(--border);border-radius:var(--radius-sm);padding:.6rem .8rem;background:var(--surface);color:var(--text)}.upload-grid label.has-error input,.upload-grid label.has-error select,.upload-grid label.has-error textarea{border-color:var(--danger)}.file-drop{border:1px dashed var(--border);border-radius:var(--radius-md);padding:.85rem 1rem;background:#fff6;display:flex;flex-direction:column;gap:6px}.file-drop.active{border-color:var(--primary);box-shadow:0 0 0 3px #2f6f631f}.file-drop:focus-within{border-color:var(--primary)}.status-pill{display:inline-flex;padding:.1rem .6rem;border-radius:var(--radius-full);background:var(--surface-muted);font-size:.75rem;font-weight:700}.status-pill.ok{background:#dcfce7;color:#166534}.status-pill.mid{background:#fef3c7;color:#92400e}.status-pill.err{background:var(--danger-soft);color:var(--danger)}.kbd{background:var(--ink);color:#fff;padding:.15rem .5rem;border-radius:var(--radius-sm);font-size:.75rem}.nav-bar{display:flex;justify-content:space-between;align-items:center;gap:var(--space-sm);flex-wrap:wrap;margin-top:var(--space-lg);padding-top:var(--space-md);border-top:1px solid var(--border)}.quick-links{display:flex;flex-wrap:wrap;gap:var(--space-sm);margin-top:var(--space-md)}.quick-links a{display:inline-flex;align-items:center;gap:6px;padding:.4rem .8rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-full);font-size:.8125rem;color:var(--text);transition:all .15s ease}.quick-links a:hover{background:var(--surface-soft);border-color:var(--primary);color:var(--primary)}.metadata-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:var(--space-sm);margin-bottom:var(--space-md)}.metadata-grid>div{background:var(--surface-soft);border-radius:var(--radius-md);padding:.8rem 1rem}.metadata-grid dt{color:var(--muted);font-size:.75rem}.metadata-grid dd{margin:4px 0 0;font-weight:700}.options{display:flex;flex-direction:column;gap:.7rem}.option,.option-item{display:flex;align-items:center;gap:var(--space-sm);padding:.75rem 1rem;border-radius:var(--radius-md);border:1px solid var(--border);background:var(--surface-soft);transition:border-color .15s ease,background .15s ease}.option.active,.option-item.active{border-color:var(--primary);background:var(--primary-soft)}.letter{font-weight:800;color:var(--primary);min-width:1.4rem}.question-jump{display:flex;flex-wrap:wrap;gap:8px;margin-top:var(--space-sm)}.nav-item{width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;background:var(--card);font-weight:600;font-size:.875rem;transition:all .15s ease}.nav-item:hover{background:var(--surface-soft)}.nav-item.active{background:var(--primary);color:#fff;border-color:var(--primary)}.nav-item.answered{outline:2px solid #86efac}.live-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-sm)}.select-option{display:flex;align-items:center;gap:var(--space-sm);padding:.7rem;border-radius:var(--radius-md);border:1px solid var(--border);margin-bottom:8px;cursor:pointer;background:var(--card);transition:border-color .15s ease}.select-option:hover{border-color:var(--muted)}.select-option.active{border-color:var(--primary);background:var(--primary-soft)}.radio{width:16px;height:16px;border-radius:50%;border:2px solid var(--muted);flex-shrink:0}.select-option.active .radio{border-color:var(--primary);background:var(--primary)}.progress.indeterminate .progress-fill{width:40%!important;animation:progress-indet 1.2s ease-in-out infinite}@keyframes progress-indet{0%{transform:translate(-120%)}to{transform:translate(280%)}}.ai-comment{padding:1rem 1.1rem;border-radius:var(--radius-lg);margin-bottom:var(--space-md);background:var(--surface-soft);border:1px solid var(--border)}.glass-card{background:linear-gradient(180deg,#ffffff8c,#ffffff47);border:1px solid rgba(255,255,255,.55);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.quiz-overlay{position:sticky;bottom:var(--space-sm);margin-top:var(--space-sm);padding:1rem;border-radius:var(--radius-lg);background:#101b2dd1;color:#fff;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.tree-course{margin-bottom:var(--space-md)}.tree-module{border:1px dashed var(--border);border-radius:var(--radius-lg);padding:.9rem 1rem;margin:.6rem 0;background:#ffffff73}@media(max-width:900px){.portal-layout,.live-grid,.product-grid,.content-detail,.upload-grid{grid-template-columns:1fr}}@media(max-width:480px){.login-container,.hub-container{padding:var(--space-lg) var(--space-sm);border-radius:var(--radius-lg)}}.action-bar{display:flex;justify-content:space-between;gap:var(--space-sm);flex-wrap:wrap;margin-top:var(--space-md)}.letter-group{display:flex;flex-wrap:wrap;gap:6px}.letter-group button{width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface-soft);font-weight:600;transition:all .15s ease}.letter-group button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.student-list{display:flex;flex-direction:column;gap:8px}.student-item{display:flex;align-items:center;gap:10px;padding:.5rem .8rem;border-radius:var(--radius-full);background:var(--surface-soft)}.avatar{width:32px;height:32px;border-radius:50%;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;color:var(--primary)}.context-menu{margin-top:var(--space-md);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1rem}.menu-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:8px}.menu-actions button{justify-content:flex-start}.header-row{display:flex;justify-content:space-between;align-items:center;gap:var(--space-sm);flex-wrap:wrap;margin-bottom:var(--space-lg);padding-bottom:var(--space-md);border-bottom:1px solid var(--border)}.slide-info,.shortcut-badge,.timer{background:var(--surface-muted);padding:.3rem 1rem;border-radius:var(--radius-full);font-weight:600;color:var(--muted)}.product-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-md)}.product-card{background:var(--surface-soft);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-md)}.objective-item{display:flex;gap:8px;margin:8px 0}.obj-num{background:var(--primary-soft);color:var(--primary);width:22px;height:22px;border-radius:50%;text-align:center;font-size:.75rem;font-weight:700;line-height:22px;flex-shrink:0}.content-detail{display:grid;grid-template-columns:1.5fr 1fr;gap:var(--space-sm);margin-top:var(--space-md)}.audio-box{background:var(--surface-soft);border-radius:var(--radius-lg);padding:1rem;border:1px solid var(--border)}.audio-controls{display:flex;align-items:center;gap:10px;margin-top:8px}.tai-lieu-list{display:flex;flex-direction:column;gap:10px}.tai-lieu-item{display:flex;align-items:center;gap:var(--space-sm);padding:.9rem 1rem;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-soft)}.tai-lieu-item .icon{width:42px;height:42px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}.tai-lieu-item .icon.notes{background:var(--primary)}.tai-lieu-item .icon.practice{background:#8b5cf6}.tai-lieu-item .icon.video{background:var(--danger)}.tai-lieu-item .icon.code{background:var(--ink)}.footer-note{margin-top:var(--space-xl);display:flex;justify-content:center;gap:var(--space-md);flex-wrap:wrap;font-size:.8125rem;color:var(--muted)}.feature-card i.fa-book-open-reader{color:var(--primary)}.feature-card i.fa-wand-magic-sparkles{color:var(--gold)}.feature-card i.fa-file-circle-check{color:#8b5cf6}.feature-card i.fa-folder-open{color:#f59e0b}.feature-card i.fa-chart-simple{color:var(--teal)}.feature-card i.fa-layer-group{color:var(--primary)}.feature-card i.fa-sitemap{color:var(--gold)}.feature-card i.fa-people-group{color:var(--teal)}.feature-card i.fa-pen-to-square{color:var(--danger)}.feature-card i.fa-desktop{color:#8b5cf6}.feature-card i.fa-comment-dots{color:var(--gold)}.feature-card i.fa-chart-column{color:var(--teal)}.feature-card i.fa-users-gear{color:var(--ink)}.feature-card i.fa-gears,.feature-card i.fa-clock-rotate-left{color:var(--muted)}.feature-card i.fa-compass{color:var(--primary)}.feature-card i.fa-chart-pie{color:var(--gold)}