@font-face{font-family:"Noto Sinhala";src:url("fonts/NotoSansSinhala-Regular.ttf") format("truetype");font-display:swap}
@font-face{font-family:"Noto Tamil";src:url("fonts/NotoSansTamil-Regular.ttf") format("truetype");font-display:swap}
:root{--ink:#182331;--muted:#687485;--line:#d7dde4;--blue:#1769e0;--navy:#172332;--green:#12a36d}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:#edf0f3;color:var(--ink);font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer}.app-shell{height:100vh;min-height:620px;overflow:hidden}.topbar{height:58px;display:grid;grid-template-columns:260px 1fr 260px;align-items:center;background:#fff;border-bottom:1px solid var(--line);padding:0 18px}.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:650}.brand b{color:var(--blue)}.brand-mark{width:31px;height:31px;display:grid;place-items:center;border-radius:8px;background:var(--blue);color:#fff;font-family:Georgia,serif;font-weight:700;box-shadow:0 4px 12px #1769e040}.brand-mark sup{font-size:8px}.project-title{justify-self:center;display:flex;align-items:center;gap:12px}.project-title input{width:270px;border:1px solid transparent;background:transparent;font-weight:650;text-align:center;padding:6px;border-radius:7px}.project-title input:focus{border-color:var(--line);outline:0}.save-state{font-size:11px;color:#738091;padding-left:13px;position:relative}.save-state:before{content:"";width:6px;height:6px;background:var(--green);border-radius:50%;position:absolute;left:0;top:5px}.save-state.busy:before{background:#efa623;animation:pulse 1s infinite}.save-state.error:before{background:#dc3e4b}@keyframes pulse{50%{opacity:.25}}.top-actions{justify-self:end;display:flex;align-items:center;gap:10px}.ghost{border:1px solid var(--line);background:#fff;padding:7px 12px;border-radius:7px;color:#536071;font-size:12px;font-weight:600}.avatar{display:grid;place-items:center;background:#e7effd;color:#1556b0;width:32px;height:32px;border-radius:50%;font-weight:700;font-size:11px}.workspace{height:calc(100vh - 58px);display:grid;grid-template-columns:220px minmax(380px,1.08fr) minmax(380px,.92fr)}.files-pane{background:var(--navy);color:#cbd3de;display:flex;flex-direction:column;min-width:0}.pane-heading{height:46px;padding:0 13px 0 17px;display:flex;align-items:center;justify-content:space-between;color:#8f9bad;font-size:10px;font-weight:750;letter-spacing:.1em;border-bottom:1px solid #273648}.pane-heading div{display:flex;gap:5px}.pane-heading button{border:0;background:#26384d;color:#d7e2ed;border-radius:5px;width:25px;height:25px;font-size:17px}.file-list{padding:9px 8px;flex:1}.file{border:0;width:100%;display:flex;align-items:center;gap:9px;color:#cdd5df;background:transparent;border-radius:6px;padding:8px 9px;text-align:left;font-size:12px}.file:hover{background:#213247}.file.active{background:#293d55;color:#fff}.file-icon{width:18px;height:18px;display:inline-grid;place-items:center;border-radius:3px;background:#2d7dec;color:#fff;font-size:9px;font-weight:800;flex:none}.file-icon.bib{background:#c56a38}.file-icon.image{background:#8d59ca}.file-tip{border-top:1px solid #29394a;padding:14px 16px;display:flex;gap:9px;color:#8996a7;font-size:10px;line-height:1.5}.file-tip p{margin:0}.editor-pane,.preview-pane{min-width:0;display:flex;flex-direction:column;background:#fff;border-right:1px solid var(--line)}.editor-toolbar,.preview-toolbar{height:46px;flex:none;border-bottom:1px solid var(--line);background:#fafbfc;display:flex;align-items:center;justify-content:space-between;padding:0 12px}.tab{height:46px;display:flex;align-items:center;gap:8px;padding:0 10px 0 4px;border-bottom:2px solid var(--blue);font-size:12px;font-weight:620}.compile-group{display:flex;align-items:center;gap:6px}.compile-group select,.tool-button{border:1px solid var(--line);border-radius:6px;background:#fff;padding:7px 9px;font-size:10px;color:#536071}.tool-button{font-weight:650}.compile{border:0;border-radius:6px;background:var(--blue);color:#fff;padding:8px 14px;font-size:11px;font-weight:700;box-shadow:0 3px 8px #1769e035}.compile:disabled{opacity:.65}.code-wrap{display:grid;grid-template-columns:46px 1fr;flex:1;min-height:0;overflow:hidden}.line-numbers{padding:15px 10px 40px 0;background:#f7f8fa;border-right:1px solid #edf0f3;color:#9ba4af;font:12px/1.65 Consolas,monospace;text-align:right;overflow:hidden;white-space:pre-line}.code-wrap textarea{width:100%;height:100%;resize:none;border:0;outline:0;padding:15px 18px 40px;color:#263341;background:#fff;font:12.5px/1.65 Consolas,monospace;white-space:pre;overflow:auto;tab-size:2}.log-bar{height:32px;flex:none;border:0;border-top:1px solid var(--line);background:#f7f8fa;color:#667487;padding:0 12px;display:flex;justify-content:space-between;align-items:center;font-size:10px;text-transform:uppercase;letter-spacing:.06em}.compiler-log{position:absolute;z-index:5;bottom:32px;left:220px;width:calc((100vw - 220px)*.54);height:180px;overflow:auto;margin:0;padding:14px;background:#111b27f2;color:#cad7e5;font:11px/1.55 monospace;white-space:pre-wrap}.preview-pane{border:0;background:#e8ebef}.preview-toolbar{background:#f7f8fa;color:#707b89;font-size:10px;font-weight:750;letter-spacing:.08em}.preview-toolbar div{display:flex;align-items:center;gap:4px}.preview-toolbar button{border:0;background:transparent;color:#6e7988;width:28px;height:28px}.preview-toolbar b{min-width:38px;text-align:center;font-size:10px}.preview-canvas{flex:1;min-height:0;overflow:auto;display:flex;align-items:flex-start;justify-content:center;padding:28px;background:radial-gradient(circle at 50% 10%,#f1f3f5,#e3e7eb 70%)}.preview-canvas iframe{width:100%;height:100%;border:0;background:#fff;box-shadow:0 4px 22px #26364a2b}.paper{width:520px;min-height:675px;background:#fff;padding:64px 62px;box-shadow:0 4px 22px #26364a2b;transform-origin:top center;color:#151515;font-family:Georgia,serif}.paper h1{text-align:center;font-size:23px;margin:0 0 13px}.paper .author,.paper .date{text-align:center;margin:4px 0;font-size:12px}.paper .date{margin-bottom:38px}.paper h2{font-size:14px;margin:26px 0 8px}.paper p{font-size:10.5px;line-height:1.55}.sinhala{font-family:"Noto Sinhala",sans-serif}.tamil{font-family:"Noto Tamil",sans-serif}.image-placeholder{margin:28px 0;border:1px dashed #9caac0;background:#f3f6fa;color:#6a7687;padding:28px;text-align:center;font:10px/1.5 Inter,sans-serif}.preview-footer{height:30px;flex:none;background:#f7f8fa;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 12px;color:#8993a0;font-size:9px}.mobile-tabs{display:none}@media(max-width:1100px){#language-template{display:none}}@media(max-width:900px){.topbar{grid-template-columns:1fr auto}.project-title{display:none}.top-actions .ghost{display:none}.mobile-tabs{height:42px;display:grid;grid-template-columns:repeat(3,1fr);background:#fff;border-bottom:1px solid var(--line)}.mobile-tabs button{border:0;background:transparent;color:#697687;font-size:12px;font-weight:650}.mobile-tabs button.active{color:var(--blue);border-bottom:2px solid var(--blue)}.workspace{height:calc(100vh - 100px);display:block}.files-pane,.editor-pane,.preview-pane{display:none;height:100%}.mobile-active{display:flex!important}#language-template{display:inline-block}.compiler-log{left:0;width:100%}.preview-canvas{padding:16px}.paper{width:100%;min-height:620px;padding:45px 34px}}