:root{--bg-color: #0c0c0c;--glass-bg: rgba(20, 20, 20, .7);--glass-border: rgba(255, 255, 255, .08);--accent-color: #6366f1;--text-primary: #f8fafc;--text-secondary: #94a3b8;--error-color: #f87171;--success-color: #4ade80;--blur-amount: 12px}*{box-sizing:border-box;margin:0;padding:0}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background-color:var(--bg-color);color:var(--text-primary);height:100vh;overflow:hidden}#root{height:100%}.logo{height:25px;border-radius:20%}.glass{background:var(--glass-bg);backdrop-filter:blur(var(--blur-amount));-webkit-backdrop-filter:blur(var(--blur-amount));border:1px solid var(--glass-border);border-radius:12px}.glass-card{box-shadow:0 8px 32px #0000005e}.glass-border-bottom{border-bottom:1px solid var(--glass-border)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#fff3}.editor-container{height:100%;width:100%;overflow:hidden}.cm-editor{height:100%!important}.cm-scroller{font-family:JetBrains Mono,Fira Code,monospace!important}.cm-gutters{background-color:transparent!important;border-right:1px solid rgba(255,255,255,.05)!important;color:var(--text-secondary)!important}.cm-activeLineGutter{background-color:#ffffff0d!important}.preview-container{height:100%;width:100%;padding:1rem;overflow:auto;display:flex;justify-content:center;align-items:flex-start;position:relative;background:#0000001a}.mermaid-render{width:100%;display:flex;justify-content:center}.mermaid-render svg{max-width:100%;height:auto}.error-overlay{position:absolute;bottom:1rem;left:1rem;right:1rem;background:#dc26261a;border:1px solid rgba(220,38,38,.2);padding:1rem;border-radius:8px;animation:slideIn .3s ease-out}.error-content{display:flex;align-items:center;gap:.75rem}.error-icon{font-size:1.25rem}.error-message{font-size:.85rem;color:#fca5a5;font-family:monospace}@keyframes slideIn{0%{transform:translateY(10px);opacity:0}to{transform:translateY(0);opacity:1}}.zoom-controls{position:absolute;top:1rem;right:1rem;display:flex;flex-direction:column;gap:.5rem;padding:.5rem;z-index:100;border-radius:8px;background:#14141466}.zoom-controls button{background:transparent;border:none;color:var(--text-secondary);padding:.5rem;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.zoom-controls button:hover{background:#ffffff1a;color:var(--text-primary)}.app-container{display:flex;flex-direction:column;height:100vh;width:100vw;background-image:radial-gradient(circle at 50% 50%,rgba(99,102,241,.05) 0%,transparent 50%),radial-gradient(circle at 10% 20%,rgba(99,102,241,.03) 0%,transparent 40%)}.toolbar{height:60px;display:flex;align-items:center;justify-content:space-between;padding:0 1.5rem;z-index:10;border-radius:0;background:#0f0f0fcc}.logo{font-size:1.25rem;font-weight:700;letter-spacing:-.025em;background:linear-gradient(to right,#fff,#94a3b8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.header-icon{color:var(--accent-color)}.toolbar-actions{display:flex;align-items:center;gap:.5rem}.action-btn{display:flex;align-items:center;gap:.5rem;background:transparent;border:1px solid transparent;color:var(--text-secondary);padding:.5rem .75rem;border-radius:8px;cursor:pointer;font-size:.875rem;font-weight:500;transition:all .2s ease}.action-btn:hover{background:#ffffff0d;color:var(--text-primary);border-color:var(--glass-border)}.divider{width:1px;height:24px;background:var(--glass-border);margin:0 .5rem}.dropdown{position:relative;display:inline-block}.dropdown-content{display:none;position:absolute;right:0;top:100%;min-width:160px;box-shadow:0 8px 16px #0006;z-index:100;border-radius:8px;padding:.5rem;margin-top:.5rem;background:#141414f2}.dropdown:hover .dropdown-content{display:block;animation:fadeIn .15s ease-out}.dropdown-content button{width:100%;text-align:left;background:transparent;border:none;color:var(--text-secondary);padding:.6rem .8rem;font-size:.875rem;border-radius:6px;cursor:pointer;transition:all .2s}.dropdown-content button:hover{background:#ffffff14;color:var(--text-primary)}@keyframes fadeIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.toolbar-left{display:flex;align-items:center;gap:1rem}.status-indicator{width:8px;height:8px;border-radius:50%}.status-indicator.success{background-color:var(--success-color);box-shadow:0 0 8px var(--success-color)}.status-indicator.error{background-color:var(--error-color);box-shadow:0 0 8px var(--error-color)}.main-content{flex:1;padding:1.25rem;overflow:hidden}.split-view{height:100%;width:100%}.resize-handle{width:8px;background:transparent;cursor:col-resize;transition:all .2s;position:relative;z-index:5}.resize-handle:hover,.resize-handle[data-resize-handle-active]{background:#6366f133}.resize-handle:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:2px;height:30px;background:var(--glass-border);border-radius:1px}.editor-pane,.preview-pane{display:flex;flex-direction:column;overflow:hidden;position:relative;height:100%}@media(max-width:768px){.split-view{grid-template-columns:1fr;grid-template-rows:1fr 1fr}}