*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary: #ffffff;--bg-secondary: #f9f9f9;--bg-tertiary: #f4f4f4;--bg-hover: #ececec;--bg-input: #ffffff;--text-primary: #0d0d0d;--text-secondary: #5d5d5d;--text-muted: #8e8e8e;--border: #e3e3e3;--border-input: #d9d9d9;--accent: #10a37f;--accent-hover: #0d8c6d;--danger: #ef4444;--user-bubble: #f4f4f4;--sidebar-width: 260px;--mobile-header-height: 52px;--radius: 16px;--radius-sm: 10px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06);--shadow-md: 0 4px 16px rgba(0, 0, 0, .08);--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px);--safe-right: env(safe-area-inset-right, 0px)}html,body,#app{height:100%;height:100dvh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;overscroll-behavior:none}button{font-family:inherit;cursor:pointer;border:none;outline:none;-webkit-tap-highlight-color:transparent}input,textarea,select{font-family:inherit;outline:none;font-size:16px}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#d0d0d0;border-radius:3px}@media(max-width:768px){input,textarea,select{font-size:16px}}