@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";.panel{display:flex;flex-direction:column;height:100%;overflow:hidden;background:var(--panel-bg)}.resizable-handle{width:6px;height:100%;background:var(--shell-bg);display:flex;align-items:center;justify-content:center;cursor:col-resize;flex-shrink:0;transition:background .15s ease}.resizable-handle:hover,.resizable-handle.dragging{background:var(--shell-accent)}.resizable-handle-line{width:2px;height:48px;background:var(--panel-border);border-radius:1px;transition:background .15s ease}.resizable-handle:hover .resizable-handle-line,.resizable-handle.dragging .resizable-handle-line{background:var(--shell-accent)}.shell-layout{display:flex;flex-direction:column;width:100%;height:100vh;overflow:hidden;background:var(--shell-bg)}.title-bar{display:flex;align-items:center;gap:10px;height:40px;padding:0 16px;background:var(--panel-bg);border-bottom:1px solid 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rgba(0,0,0,.08))}.login-logo{display:flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:16px;background:var(--shell-accent, #d4783a);color:#fff}.login-logo-char{font-size:28px;font-weight:700}.login-title{margin:0;font-size:24px;font-weight:700;color:var(--shell-text, #1a1a1a)}.login-subtitle{margin:0;font-size:14px;color:var(--shell-text-secondary, #6b6b6b)}.login-button{margin-top:16px;padding:10px 32px;border:none;border-radius:8px;background:var(--shell-accent, #d4783a);color:#fff;font-size:14px;font-weight:600;font-family:var(--font-sans, "Inter", sans-serif);cursor:pointer;transition:background .2s}.login-button:hover{background:var(--shell-accent-hover, #b8632a)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;padding:24px;text-align:center;flex:1}.empty-icon-box{width:72px;height:72px;display:flex;align-items:center;justify-content:center;background:var(--muted);border-radius:8px;color:var(--shell-accent)}.empty-icon-box svg{width:34px;height:34px}.empty-copy{display:flex;flex-direction:column;align-items:center;gap:6px}.empty-title{font-size:var(--font-size-xl);font-weight:700;color:var(--shell-text)}.empty-desc{font-size:var(--font-size-base);color:var(--shell-text-secondary);line-height:1.45;max-width:100%}.empty-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;height:40px;padding:0 16px;border:none;border-radius:6px;background:var(--shell-accent);color:#fff;font-size:var(--font-size-lg);font-weight:700;font-family:var(--font-ui);cursor:pointer;transition:background .15s ease}.empty-btn:hover{background:var(--shell-accent-hover)}.empty-btn 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h3{font-size:var(--font-size-lg);font-weight:600;color:var(--shell-text)}.unknown-meta{display:flex;flex-direction:column;gap:8px;width:100%}.unknown-meta-item{display:flex;justify-content:space-between;padding:8px 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p{margin:4px 0;font-family:var(--font-sans)}.chat-placeholder-hint{font-size:var(--font-size-sm);color:var(--text-tertiary)}[data-theme=light]{--shell-bg: #F5F5F5;--shell-text: #333333;--shell-text-secondary: #767676;--shell-accent: #0F5FFE;--panel-bg: #FFFFFF;--panel-border: #E1E2E5;--muted: #F2F3F0;--secondary: #333333;--secondary-foreground: #FFFFFF;--tree-hover: #F2F3F0;--tree-selected: #F2F3F0;--tree-selected-border: #0F5FFE;--tree-indent: #E5E5E5;--sidebar-bg: #FFFFFF;--sidebar-border: #E1E2E5;--color-info: #C9D6F0;--color-info-foreground: #001133;--color-success: #DDF0C9;--color-success-foreground: #1A3300;--color-warning: #F5E6D7;--color-warning-foreground: #663300;--color-error: #F5D7F3;--color-error-foreground: #66005E;--font-ui: "Roboto", system-ui, -apple-system, sans-serif;--font-mono: "Roboto Mono", "Cascadia Code", monospace;--space-xs: 4px;--space-sm: 6px;--space-md: 8px;--space-lg: 12px;--space-xl: 16px;--space-2xl: 24px;--space-3xl: 40px;--font-size-xs: 12px;--font-size-sm: 12px;--font-size-base: 13px;--font-size-lg: 14px;--font-size-xl: 16px;--font-size-2xl: 18px;--font-size-3xl: 22px;--shadow-sm: 0 1px 2px rgba(0,0,0,.05);--shadow-md: 0 4px 12px rgba(0,0,0,.08)}[data-theme=dark]{--shell-bg: #252629;--shell-text: #F5F5F5;--shell-text-secondary: #8F8F8F;--shell-accent: #0F5FFE;--panel-bg: #1F1F1F;--panel-border: #2E2E2E;--muted: #2E2E2E;--secondary: #414347;--secondary-foreground: #FFFFFF;--tree-hover: #2A2A2A;--tree-selected: #2A2A2A;--tree-selected-border: #0F5FFE;--tree-indent: #333333;--sidebar-bg: #2E2F33;--sidebar-border: #414347;--color-info: #3C4352;--color-info-foreground: #B2CCFF;--color-success: #4A4E49;--color-success-foreground: #D1F0C9;--color-warning: #4F4E4C;--color-warning-foreground: #F5E1CE;--color-error: #57474A;--color-error-foreground: #F5C4CC;--shadow-sm: 0 1px 2px rgba(0,0,0,.3);--shadow-md: 0 4px 12px 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