@charset "UTF-8";@font-face{font-family:DM Sans;font-style:normal;font-weight:300;font-display:swap;src:url(https://fonts.gstatic.com/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu6-K6h9Q.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:DM Sans;font-style:normal;font-weight:300;font-display:swap;src:url(https://fonts.gstatic.com/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu0-K4.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:DM Sans;font-style:normal;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu6-K6h9Q.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:DM Sans;font-style:normal;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu0-K4.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:DM Sans;font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu6-K6h9Q.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:DM Sans;font-style:normal;font-weight:500;font-display:swap;src:url(https://fonts.gstatic.com/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu0-K4.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:DM Sans;font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu6-K6h9Q.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:DM Sans;font-style:normal;font-weight:600;font-display:swap;src:url(https://fonts.gstatic.com/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu0-K4.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:italic;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEF02_tTDB4M7-auWDN0ahZJW1ge6NmXpVAHV83Bfb_US2D2QYxoUKIkn98pRl9tAcQCnjU.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:italic;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEF02_tTDB4M7-auWDN0ahZJW1ge6NmXpVAHV83Bfb_US2D2QYxoUKIkn98pRl9tCMQCnjU.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:italic;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEF02_tTDB4M7-auWDN0ahZJW1ge6NmXpVAHV83Bfb_US2D2QYxoUKIkn98pRl9tD8QCnjU.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:italic;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEF02_tTDB4M7-auWDN0ahZJW1ge6NmXpVAHV83Bfb_US2D2QYxoUKIkn98pRl9tA8QCnjU.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:italic;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEF02_tTDB4M7-auWDN0ahZJW1ge6NmXpVAHV83Bfb_US2D2QYxoUKIkn98pRl9tAsQCnjU.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:italic;font-weight:400;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEF02_tTDB4M7-auWDN0ahZJW1ge6NmXpVAHV83Bfb_US2D2QYxoUKIkn98pRl9tDMQC.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:400;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFF2_tTDB4M7-auWDN0ahZJW3IX2ih5nk3AucvUHf6kAHr4cXk.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:400;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFF2_tTDB4M7-auWDN0ahZJW3IX2ih5nk3AucvUHf6kCXr4cXk.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:400;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFF2_tTDB4M7-auWDN0ahZJW3IX2ih5nk3AucvUHf6kDnr4cXk.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:400;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFF2_tTDB4M7-auWDN0ahZJW3IX2ih5nk3AucvUHf6kAnr4cXk.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:400;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFF2_tTDB4M7-auWDN0ahZJW3IX2ih5nk3AucvUHf6kA3r4cXk.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:400;font-display:swap;src:url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFF2_tTDB4M7-auWDN0ahZJW3IX2ih5nk3AucvUHf6kDXr4.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/vEFF2_tTDB4M7-auWDN0ahZJW3IX2ih5nk3AucvUHf6kAHr4cXk.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/vEFF2_tTDB4M7-auWDN0ahZJW3IX2ih5nk3AucvUHf6kCXr4cXk.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/vEFF2_tTDB4M7-auWDN0ahZJW3IX2ih5nk3AucvUHf6kDnr4cXk.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/vEFF2_tTDB4M7-auWDN0ahZJW3IX2ih5nk3AucvUHf6kAnr4cXk.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/vEFF2_tTDB4M7-auWDN0ahZJW3IX2ih5nk3AucvUHf6kA3r4cXk.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/vEFF2_tTDB4M7-auWDN0ahZJW3IX2ih5nk3AucvUHf6kDXr4.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}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-base: #f8f9fb;--bg-surface: #ffffff;--bg-surface2: #f1f4f8;--bg-hover: #edf0f5;--border: rgba(0,0,0,.08);--border-mid: rgba(0,0,0,.12);--text-primary: #0f1923;--text-secondary: #4a5568;--text-tertiary: #8896a8;--accent: #3b73f5;--accent-light: #eef2ff;--accent-hover: #2c62e8;--error: #dc2626;--error-bg: #fef2f2;--error-border: rgba(220,38,38,.2);--warning: #d97706;--warning-bg: #fffbeb;--warning-border: rgba(217,119,6,.2);--info: #0891b2;--info-bg: #ecfeff;--info-border: rgba(8,145,178,.2);--success: #16a34a;--success-bg: #f0fdf4;--success-border: rgba(22,163,74,.2);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--font-ui: "DM Sans", system-ui, sans-serif;--font-essay: "Source Serif 4", Georgia, serif;--titlebar-h: 42px;--toolbar-h: 52px;--bottombar-h: 30px}html,body{height:100%;overflow:hidden;background:var(--bg-base);font-family:var(--font-ui);color:var(--text-primary);font-size:14px;-webkit-font-smoothing:antialiased}.btn{font-family:var(--font-ui);font-size:13px;font-weight:500;padding:6px 16px;border-radius:var(--radius-sm);cursor:pointer;border:1px solid transparent;transition:all .15s;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:active{transform:scale(.98)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:var(--bg-surface2);color:var(--text-secondary);border-color:var(--border-mid)}.btn-secondary:hover{background:var(--bg-hover);color:var(--text-primary)}.select{font-family:var(--font-ui);font-size:13px;padding:5px 28px 5px 10px;border:1px solid var(--border-mid);border-radius:var(--radius-sm);background:var(--bg-surface2);color:var(--text-primary);cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%238896a8' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;transition:border-color .15s}.select:hover{border-color:var(--accent)}.select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #3b73f51f}.score-row{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.score-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:12px;text-align:center}.score-val{font-size:26px;font-weight:600;line-height:1;margin-bottom:4px}.score-lbl{font-size:11px;color:var(--text-tertiary)}.score-green{color:var(--success)}.score-yellow{color:var(--warning)}.score-red{color:var(--error)}.verdict-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:14px 16px;font-size:13.5px;line-height:1.6}.verdict-card.good{border-color:var(--success-border);background:var(--success-bg)}.verdict-card.average{border-color:var(--warning-border);background:var(--warning-bg)}.verdict-card.poor{border-color:var(--error-border);background:var(--error-bg)}.issue-section{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden}.issue-section-header{padding:10px 14px;display:flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--text-secondary);border-bottom:1px solid var(--border);cursor:pointer;-webkit-user-select:none;user-select:none;background:var(--bg-surface2)}.issue-section-header:hover{background:var(--bg-hover)}.section-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.dot-error{background:var(--error)}.dot-warning{background:var(--warning)}.dot-info{background:var(--info)}.dot-success{background:var(--success)}.section-count{margin-left:auto;font-size:11px;font-weight:400;color:var(--text-tertiary)}.section-chevron{color:var(--text-tertiary);transition:transform .2s;font-size:10px}.issue-section.collapsed .section-chevron{transform:rotate(-90deg)}.issue-section.collapsed .issue-list{display:none}.issue-list{display:flex;flex-direction:column}.issue-item{padding:10px 14px;border-bottom:1px solid var(--border);font-size:13px;line-height:1.6}.issue-item:last-child{border-bottom:none}.issue-severity{display:inline-block;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;padding:1px 7px;border-radius:10px;margin-bottom:4px}.sev-error{background:var(--error-bg);color:var(--error);border:1px solid var(--error-border)}.sev-warning{background:var(--warning-bg);color:var(--warning);border:1px solid var(--warning-border)}.sev-info{background:var(--info-bg);color:var(--info);border:1px solid var(--info-border)}.issue-sentence{font-family:var(--font-essay);font-size:13px;color:var(--text-secondary);font-style:italic;margin:4px 0;padding:4px 10px;border-left:2px solid var(--border-mid)}.issue-message{color:var(--text-primary);margin-top:3px}.issue-suggestion{font-size:12px;color:var(--text-secondary);margin-top:4px}.all-good-msg{padding:14px 16px;font-size:13px;color:var(--success);display:flex;align-items:center;gap:8px}.ai-section{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden}.ai-header{padding:10px 14px;display:flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--text-secondary);border-bottom:1px solid var(--border);background:var(--accent-light)}.ai-body{padding:14px;font-size:13px;line-height:1.7}.ai-overall{font-size:13.5px;color:var(--text-primary);margin-bottom:12px;font-weight:500}.ai-suggestion{padding:10px 12px;background:var(--bg-surface2);border-radius:var(--radius-sm);margin-bottom:8px;font-size:13px}.ai-suggestion:last-child{margin-bottom:0}.ai-fix{margin-top:5px;font-size:12px;color:var(--text-secondary)}.ai-fix:before{content:"\2192  ";color:var(--accent);font-weight:600}.loading-row{display:flex;align-items:center;gap:10px;padding:16px;font-size:13px;color:var(--text-secondary)}.spinner{width:16px;height:16px;border:2px solid var(--border-mid);border-top-color:var(--accent);border-radius:50%;animation:spin .65s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.fade-in{animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.para-num{display:inline-block;margin-left:-28px;width:28px;padding-right:4px;text-align:right;font-family:var(--font-ui);font-size:10px;line-height:27px;color:var(--text-tertiary);font-weight:500;vertical-align:top;-webkit-user-select:none;user-select:none;pointer-events:none}.sel-marker{color:var(--accent);font-weight:700}.sel-highlight{background:#3b73f51f;text-decoration:underline dotted var(--accent);text-underline-offset:3px;border-radius:2px}.issue-focus-btn{font-family:var(--font-ui);font-size:10px;font-weight:600;color:var(--accent);background:var(--accent-light);border:1px solid rgba(59,115,245,.2);border-radius:10px;padding:1px 8px;cursor:pointer;float:right;margin-left:8px;margin-top:1px;transition:background .15s;line-height:18px}.issue-focus-btn:hover{background:#3b73f533}.student-current{text-decoration:underline solid var(--accent);text-underline-offset:3px;background:#3b73f51a}.student-solved{text-decoration:underline solid var(--success);text-underline-offset:3px;background:#16a34a12}.student-pending{text-decoration:underline dotted var(--warning);text-underline-offset:3px;opacity:.6}