:root{--bg-primary: #1e1e1e;--bg-secondary: #252526;--bg-tertiary: #2d2d30;--bg-elevated: #333333;--bg-overlay: rgba(0,0,0,.5);--sidebar-bg: #181818;--sidebar-active: #2a2d2e;--sidebar-hover: #1f1f1f;--titlebar-bg: #3c3c3c;--border-subtle: #2b2b2b;--border-default: #3c3c3c;--border-strong: #555555;--border-focus: #007fd4;--text-primary: #cccccc;--text-secondary: #969696;--text-tertiary: #6e6e6e;--text-inverse: #1e1e1e;--aether-gold: #d6a94e;--aether-orange: #ff6a1a;--aether-obsidian: #050505;--accent-teal: #00e5ff;--accent-purple: #8b5cf6;--accent-green: #4ec9b0;--accent-blue: #569cd6;--color-success: #4caf50;--color-error: #f48771;--color-warning: #dcdcaa;--color-info: #75beff;--tab-active: #1e1e1e;--tab-inactive: #2d2d30;--tab-border: #252526;--diff-add-bg: rgba(46, 160, 67, .25);--diff-del-bg: rgba(248, 81, 73, .25);--syntax-keyword: #569cd6;--syntax-string: #ce9178;--syntax-number: #b5cea8;--syntax-comment: #6a9955;--syntax-function: #dcdcaa;--syntax-variable: #9cdcfe;--syntax-type: #4ec9b0;--shadow-sm: 0 2px 4px rgba(0,0,0,.4);--shadow-md: 0 4px 12px rgba(0,0,0,.5);--shadow-lg: 0 12px 32px rgba(0,0,0,.6);--radius-sm: 4px;--radius-md: 6px;--radius-lg: 10px;--radius-pill: 999px;--titlebar-height: 30px;--tabs-height: 36px;--statusbar-height: 22px;--sidebar-width: 240px;--activitybar-width: 50px;--panel-height: 200px;--chat-width: 380px;--font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Roboto, sans-serif;--font-mono: "JetBrains Mono", "SF Mono", "Cascadia Code", Menlo, Monaco, Consolas, monospace}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;width:100%;overflow:hidden}body{font-family:var(--font-ui);background:var(--bg-primary);color:var(--text-primary);font-size:13px;line-height:1.5;-webkit-font-smoothing:antialiased;-webkit-user-select:none;user-select:none}.titlebar{height:var(--titlebar-height);background:var(--titlebar-bg);border-bottom:1px solid 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ease}.titlebar-search:hover{border-color:var(--border-strong)}.titlebar-actions{display:flex;gap:4px}.titlebar-btn{background:transparent;border:none;color:var(--text-secondary);padding:4px 8px;border-radius:var(--radius-sm);cursor:pointer;font-size:12px}.titlebar-btn:hover{background:var(--bg-elevated);color:var(--text-primary)}.app-shell{display:grid;grid-template-columns:var(--activitybar-width) var(--sidebar-width) 1fr;grid-template-rows:var(--titlebar-height) 1fr var(--statusbar-height);grid-template-areas:"title title title" "activity sidebar main" "status status status";height:100vh}.app-shell.chat-open{grid-template-columns:var(--activitybar-width) var(--sidebar-width) 1fr var(--chat-width)}.app-shell.no-sidebar{grid-template-columns:var(--activitybar-width) 1fr}.app-shell.no-sidebar.chat-open{grid-template-columns:var(--activitybar-width) 1fr var(--chat-width)}.titlebar{grid-area:title}.activity-bar{grid-area:activity;background:var(--sidebar-bg);border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;align-items:center;padding:8px 0;gap:4px}.activity-btn{width:38px;height:38px;background:transparent;border:none;color:var(--text-tertiary);cursor:pointer;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;position:relative;transition:color .1s ease}.activity-btn:hover{color:var(--text-primary);background:var(--sidebar-hover)}.activity-btn.active{color:var(--text-primary)}.activity-btn.active:before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:2px;background:var(--aether-gold);border-radius:2px}.activity-spacer{flex:1}.sidebar{grid-area:sidebar;background:var(--sidebar-bg);border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;overflow:hidden}.sidebar-header{padding:8px 12px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);display:flex;align-items:center;justify-content:space-between;height:36px;flex-shrink:0}.sidebar-section{padding:4px 0}.sidebar-section-title{padding:6px 12px;font-size:11px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em;display:flex;align-items:center;justify-content:space-between;cursor:pointer;height:22px}.sidebar-section-title:hover{color:var(--text-primary)}.tree-row{display:flex;align-items:center;gap:4px;padding:3px 8px 3px 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4px;border-radius:var(--radius-sm);font-size:11px}.tree-action:hover{background:var(--bg-elevated);color:var(--text-primary)}.main{grid-area:main;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-primary)}.tabs{display:flex;background:var(--tab-inactive);border-bottom:1px solid var(--tab-border);height:var(--tabs-height);overflow-x:auto;overflow-y:hidden;flex-shrink:0}.tab{display:flex;align-items:center;gap:8px;padding:0 12px;height:100%;border-right:1px solid var(--tab-border);cursor:pointer;font-size:13px;color:var(--text-secondary);position:relative;min-width:120px;max-width:200px;-webkit-user-select:none;user-select:none}.tab.active{background:var(--tab-active);color:var(--text-primary)}.tab.active:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--aether-gold)}.tab.dirty .tab-close:before{content:"●";color:var(--text-primary)}.tab-icon{display:flex;align-items:center;color:var(--text-secondary)}.tab.active 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.fn{color:var(--syntax-function)}.editor-content .var{color:var(--syntax-variable)}.editor-content .typ{color:var(--syntax-type)}.ai-suggestion{background:#d6a94e14;border-left:2px solid var(--aether-gold);padding:6px 12px;margin:4px 0;font-size:12px;color:var(--text-secondary);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.panel{background:var(--bg-secondary);border-top:1px solid var(--border-default);height:var(--panel-height);display:flex;flex-direction:column;flex-shrink:0}.panel-tabs{display:flex;background:var(--bg-secondary);border-bottom:1px solid var(--border-default);height:28px;flex-shrink:0}.panel-tab{padding:0 12px;display:flex;align-items:center;font-size:11px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em;cursor:pointer;border-bottom:2px solid transparent}.panel-tab.active{color:var(--text-primary);border-bottom-color:var(--aether-gold)}.panel-tab:hover{color:var(--text-primary)}.panel-actions{margin-left:auto;padding:4px 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6px;border-radius:var(--radius-sm);height:100%;font-weight:500}.status-item:hover{background:#00000026}.status-spacer{flex:1}.chat-panel{grid-area:main;background:var(--bg-secondary);border-left:1px solid var(--border-subtle);display:flex;flex-direction:column;position:relative}.chat-panel.appended{grid-area:unset;border-left:1px solid var(--border-subtle)}.chat-header{height:36px;background:var(--bg-secondary);border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;padding:0 12px;gap:8px;font-size:12px;color:var(--text-primary);font-weight:500;flex-shrink:0}.chat-header-spacer{flex:1}.chat-close{background:transparent;border:none;color:var(--text-secondary);cursor:pointer;padding:4px 8px;border-radius:var(--radius-sm)}.chat-close:hover{background:var(--bg-elevated);color:var(--text-primary)}.chat-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:16px}.chat-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 24px;text-align:center;color:var(--text-secondary)}.chat-empty-icon{width:56px;height:56px;border-radius:var(--radius-lg);background:linear-gradient(135deg,var(--aether-gold),var(--aether-orange));display:flex;align-items:center;justify-content:center;color:var(--aether-obsidian);font-weight:700;font-size:22px;margin-bottom:16px}.chat-empty-title{font-size:16px;font-weight:600;color:var(--text-primary);margin-bottom:4px}.chat-empty-sub{font-size:13px;line-height:1.5;max-width:280px}.chat-quick{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px;justify-content:center}.chat-quick-btn{padding:6px 10px;background:var(--bg-elevated);border:1px solid var(--border-default);border-radius:var(--radius-md);font-size:12px;color:var(--text-primary);cursor:pointer;font-family:var(--font-ui)}.chat-quick-btn:hover{border-color:var(--aether-gold)}.chat-msg{font-size:13px;line-height:1.5;padding:8px 12px;border-radius:var(--radius-md);max-width:100%;word-wrap:break-word}.chat-msg.user{background:var(--bg-elevated);align-self:flex-end;color:var(--text-primary)}.chat-msg.assistant{background:transparent;color:var(--text-primary)}.chat-msg code{background:var(--bg-primary);padding:1px 5px;border-radius:3px;font-family:var(--font-mono);font-size:12px;color:var(--aether-gold)}.chat-msg pre{background:var(--bg-primary);padding:10px;border-radius:var(--radius-sm);overflow-x:auto;margin:6px 0;border:1px solid var(--border-subtle)}.chat-msg pre code{background:none;padding:0;color:var(--text-primary)}.chat-input-wrap{padding:12px;background:var(--bg-secondary);border-top:1px solid var(--border-subtle);flex-shrink:0}.chat-input{background:var(--bg-primary);border:1px solid var(--border-default);border-radius:var(--radius-md);padding:8px 10px;color:var(--text-primary);font-family:var(--font-ui);font-size:13px;resize:none;outline:none;width:100%;min-height:60px;max-height:200px;line-height:1.5}.chat-input:focus{border-color:var(--aether-gold)}.chat-input-actions{display:flex;align-items:center;justify-content:space-between;margin-top:8px}.chat-input-hint{font-size:11px;color:var(--text-tertiary)}.chat-send{background:var(--aether-gold);color:var(--aether-obsidian);border:none;border-radius:var(--radius-md);padding:6px 12px;font-weight:600;cursor:pointer;font-size:12px;display:flex;align-items:center;gap:6px}.chat-send:hover:not(:disabled){background:var(--aether-orange)}.chat-send:disabled{background:var(--bg-elevated);color:var(--text-tertiary);cursor:not-allowed}.cmd-palette-bg{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:100;display:flex;align-items:flex-start;justify-content:center;padding-top:80px}.cmd-palette{width:600px;max-width:90%;background:var(--bg-elevated);border:1px solid var(--border-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden}.cmd-palette-input{width:100%;background:transparent;border:none;border-bottom:1px solid var(--border-default);padding:12px 16px;color:var(--text-primary);font-size:14px;outline:none;font-family:var(--font-ui)}.cmd-palette-list{max-height:380px;overflow-y:auto;padding:4px}.cmd-item{padding:8px 12px;border-radius:var(--radius-sm);cursor:pointer;font-size:13px;color:var(--text-primary);display:flex;align-items:center;gap:10px}.cmd-item:hover,.cmd-item.active{background:var(--aether-gold);color:var(--aether-obsidian)}.cmd-item-icon{color:inherit;opacity:.7}.cmd-item-meta{margin-left:auto;font-size:11px;color:var(--text-tertiary)}.cmd-item.active .cmd-item-meta{color:var(--aether-obsidian);opacity:.7}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#424242;border-radius:5px}::-webkit-scrollbar-thumb:hover{background:#555}::-webkit-scrollbar-corner{background:transparent}@media(max-width:900px){.app-shell{grid-template-columns:var(--activitybar-width) 1fr}.app-shell.chat-open{grid-template-columns:var(--activitybar-width) 1fr 320px}.sidebar{display:none}.app-shell.no-sidebar{grid-template-columns:var(--activitybar-width) 1fr}}