:root{--bg-primary: #ffffff;--bg-secondary: #f5f5f5;--bg-tertiary: #e0e0e0;--bg-hover: #ebebeb;--text-primary: #1a1a1a;--text-secondary: #666666;--text-tertiary: #999999;--border: #e0e0e0;--accent: #2563eb;--accent-hover: #1d4ed8;--user-msg: #2563eb;--assistant-msg: #f5f5f5;--shadow: rgba(0, 0, 0, .1);--shadow-lg: rgba(0, 0, 0, .15);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .3s ease}[data-theme=dark]{--bg-primary: #1a1a1a;--bg-secondary: #2a2a2a;--bg-tertiary: #3a3a3a;--bg-hover: #333333;--text-primary: #f5f5f5;--text-secondary: #b3b3b3;--text-tertiary: #808080;--border: #3a3a3a;--accent: #3b82f6;--accent-hover: #60a5fa;--user-msg: #2563eb;--assistant-msg: #2a2a2a;--shadow: rgba(0, 0, 0, .3);--shadow-lg: rgba(0, 0, 0, .4)}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;overflow:hidden}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);transition:background-color var(--transition-base),color var(--transition-base);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{height:100%;display:flex;flex-direction:column}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:var(--radius-lg)}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}input,textarea{font-family:inherit;color:inherit;border:none;outline:none}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid 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var(--border)}.app-branding.svelte-15s4cft{display:flex;align-items:center;gap:var(--spacing-sm)}.app-logo.svelte-15s4cft{color:var(--text-primary);flex-shrink:0;margin-top:2px}.app-title.svelte-15s4cft{font-size:1.25rem;font-weight:600;line-height:1}.new-chat-button.svelte-15s4cft{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-md);color:var(--text-secondary);transition:all var(--transition-fast)}.new-chat-button.svelte-15s4cft:hover{background:var(--bg-hover);color:var(--text-primary)}.search-wrapper.svelte-15s4cft{padding:var(--spacing-md);border-bottom:1px solid var(--border)}.search-input-wrapper.svelte-15s4cft{position:relative;display:flex;align-items:center}.search-icon.svelte-15s4cft{position:absolute;left:var(--spacing-md);color:var(--text-tertiary);pointer-events:none}.search-input.svelte-15s4cft{width:100%;padding:var(--spacing-sm) var(--spacing-md) var(--spacing-sm) calc(var(--spacing-md) * 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