:root{--bg-primary:#121212;--bg-secondary:#1e1e1e;--bg-tertiary:#2c2c2c;--text-primary:#e4e6eb;--text-secondary:#b0b3b8;--accent-color:#00b900;--accent-hover:#090;--border-color:#3e4042;--input-bg:#3a3b3c;--msg-inbound:#242526;--msg-outbound:#005c4b;--font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-family);height:100vh;overflow:hidden}a{color:inherit;text-decoration:none}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#555}.container{display:flex;height:100vh;width:100vw}.sidebar{width:350px;background-color:var(--bg-secondary);border-right:1px solid var(--border-color);display:flex;flex-direction:column}.main{flex:1 1;display:flex;flex-direction:column;background-color:var(--bg-primary)}.btn{padding:10px 16px;border-radius:20px;border:none;cursor:pointer;font-weight:600;transition:all .2s}.btn-primary{background-color:var(--accent-color);color:#fff}.btn-primary:hover{background-color:var(--accent-hover)}